CN219926766U - Arc core pulling mechanism of injection mold - Google Patents

Abstract

The utility model discloses an arc core pulling mechanism of an injection mold, which belongs to the technical field of injection mold manufacturing, and comprises the following components: the device comprises an upper female die, a lower female die, an arc-shaped core, a core connecting rod, a core sliding block, a telescopic rod and a power machine; the upper female die and the lower female die are arranged in a relatively openable and closable manner, and can form an injection molding cavity of a product after being combined. And then the arc-shaped mold core is movably arranged between the upper female die and the lower female die to be used as a cavity of an injection molding product. The cavity of a product of a round pipe or the like is arc-shaped, and the arc-shaped inner wall of the modified cavity is matched with the radian of the outer wall of the arc-shaped core, so that the power machine can drive the core sliding block and the core connecting rod through driving the telescopic rod, and the arc-shaped core can be attached to the inner wall of the cavity to perform arc core pulling. Therefore, the utility model solves the technical problem of how to make the circular tube product realize circular arc lateral core pulling.

Description

Arc core pulling mechanism of injection mold

Technical Field

The utility model relates to the technical field of injection mold manufacturing, in particular to an arc core pulling mechanism of an injection mold.

Background

With the rapid development of technology, the quality of life of people is getting higher and higher. Various articles for daily use, automobile articles, electronic products and the like enter into thousands of households, and plastic products occupy most of them. Recent reports show that the production value of the polymer material industry in China is up to 5.58 trillion yuan, and the polymer material is mainly used in the fields of automobiles, rail transit, aerospace, intelligent equipment and the like. The plastic is a polymer compound polymerized by polyaddition or polycondensation melt, the main component of which is resin, the properties of the plastic can be changed by adding various additives, the plastic can be formed into a specified shape under high temperature and pressure, and the formed state can keep the shape unchanged after cooling to normal temperature. The plastic product has the advantages of light weight, corrosion resistance, low cost, strong plasticity and the like, and is widely applied in the current daily life and industry. The quality of one set of injection mold directly determines the appearance and the service performance of the plastic product, and high standard and high requirement are provided for the quality of the mold. In particular, the structure of the injection mold is designed as a difficulty for increasingly complex product shapes.

Based on the above, chinese patent CN111775415a discloses a side core-pulling injection mold, which comprises a fixed mold and a movable mold, wherein the movable mold is provided with a horizontal chute, a core-pulling slide block is slidably matched in the horizontal chute, and an insert block pointing to the side surface of the core is arranged on the inner side of the core-pulling slide block; the outer side of the core-pulling sliding block is provided with a hinge shaft, a swing rod is sleeved on the hinge shaft in a clearance way, and a damping ring for enabling the swing rod to maintain a swing angle against gravity is arranged between the hinge shaft and the swing rod; a linkage pin is arranged at one end of the swing rod, which is far away from the hinge shaft; one side of the fixed die is connected with a vertical rectangular frame through a convex mounting block, and the linkage pin is in sliding fit in the vertical rectangular frame; each vertical rectangular frame is composed of a T-shaped top pressing plate and a U-shaped frame, and an adjusting screw used for changing the distance between an outer transverse plate of the T-shaped top pressing plate and the mounting block so as to clamp or loosen the U-shaped frame is arranged between an inner vertical plate of the T-shaped top pressing plate and the mounting block. The side core-pulling injection mold can realize the functions of adjustable side core-pulling distance and adjustable time interval between two actions of side core pulling and mold opening.

However, the side-pulling injection mold disclosed in the prior art cannot realize the side-pulling requirement of the circular arc product. Specifically, the current injection molding product has the processing requirement of laterally pulling cores of an arc inner cavity, and the side mold cores are required to be extracted from the product after the smooth injection molding is finished. In the side core pulling scheme in the prior art, in the mold opening process, namely, the fixed mold is static and the movable mold descends, the swing rod drives the linkage pin to descend from the top edge to the bottom edge of the vertical rectangular frame. In the process, due to the action of the damping ring, the swing rod can overcome the gravity to keep the swing angle, so that the core-pulling sliding block cannot slide in advance; until the linkage pin descends to the bottom edge of the vertical rectangular frame. At this time, the injection molding machine continues to open the die and descends the movable die, the inner end of the swing rod is driven to descend continuously, the outer end of the swing rod cannot descend continuously due to the fact that the linkage pin is hooked with the bottom edge of the vertical rectangular frame, and then the swing rod swings along the outer end, so that the core-pulling sliding block is pulled outwards, the core-pulling sliding block is driven to move outwards horizontally, side core-pulling action is achieved, the injection molding machine descends the movable die continuously, and the core-pulling block is pulled outwards further. As can be seen from the accompanying drawings, the side core pulling action process is a linear core pulling action track, and if the required injection molded product is a circular tube-shaped product with radian, the core pulling structure is clamped, so that the demoulding action cannot be smoothly completed.

Disclosure of Invention

Based on the circular arc core pulling mechanism, the technical problem of how to realize circular arc side core pulling of a circular tube product is needed to be solved.

An injection mold circular arc mechanism of loosing core, it includes: the device comprises an upper female die, a lower female die, an arc-shaped core, a core connecting rod, a core sliding block, a telescopic rod and a power machine; the upper female die and the lower female die are arranged in a relatively opening and closing manner; the lower female die is provided with an arc slideway and a swinging clamping groove; the arc-shaped mold core is provided with an arc-shaped sliding part and a swing arm; the arc sliding part is movably connected with the arc slideway; the swing arm is movably connected with the swing clamping groove. The core connecting rod is connected with the end part of the arc-shaped sliding part; the core slide block is connected with the core connecting rod; the telescopic rod is respectively connected with the core sliding block and the power machine; the power machine is in driving connection with the telescopic rod.

Further, an upper template is arranged above the upper female die.

Further, a lower template is arranged below the lower female die.

Further, a linear core and an inclined guide post are arranged between the upper die plate and the lower die plate.

Further, the lower template is provided with a linear slideway.

Furthermore, the linear core is movably connected with the linear slideway, and the linear core is arranged on the side surface of the lower female die.

Furthermore, the inclined guide post is movably connected with the linear core, and the inclined guide post is connected with the upper die plate.

Further, a side connecting frame is arranged on the side face of the lower template; the end part of the side connecting frame is fixedly connected with the power machine.

Further, the side connection frame has a connection groove.

Further, the telescopic rod is arranged in the connecting groove; the core slide block is movably connected with the connecting groove.

In summary, the arc core pulling mechanism of the injection mold is provided with the upper concave die, the lower concave die, the arc core, the core connecting rod, the core sliding block, the telescopic rod and the power machine respectively; the upper female die and the lower female die are arranged in a relatively openable and closable manner, and can form an injection molding cavity of a product after being combined. And then the arc-shaped mold core is movably arranged between the upper female die and the lower female die to be used as a cavity of an injection molding product. The cavity of a product of a round pipe or the like is arc-shaped, and the arc-shaped inner wall of the modified cavity is matched with the radian of the outer wall of the arc-shaped core, so that the power machine can drive the core sliding block and the core connecting rod through driving the telescopic rod, and the arc-shaped core can be attached to the inner wall of the cavity to perform arc core pulling. Therefore, the circular arc core pulling mechanism of the injection mold solves the technical problem of how to enable circular arc lateral core pulling of circular tube products.

Drawings

FIG. 1 is a schematic diagram of a part of an explosion structure of an arc core-pulling mechanism of an injection mold;

FIG. 2 is a schematic diagram of an explosion structure of an arc core-pulling mechanism of an injection mold;

fig. 3 is a schematic structural view of an arc core-pulling mechanism of an injection mold.

Description of the embodiments

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 3, an arc core-pulling mechanism of an injection mold according to the present utility model includes: the die comprises an upper die 1, a lower die 2, an arc-shaped core 3, a core connecting rod 4, a core sliding block 5, a telescopic rod 6 and a power machine 7; the upper female die 1 and the lower female die 2 are arranged in a relatively opening and closing manner; the lower die 2 is provided with an arc-shaped slideway 201 and a swinging clamping groove 202; the arc-shaped core 3 has an arc-shaped sliding portion 301 and a swing arm 302; the arc sliding part 301 is movably connected with the arc slideway 201; the swing arm 302 is movably connected with the swing clamping groove 202. The core connecting rod 4 is connected with the end part of the arc-shaped sliding part 301; the core slide 5 is connected with the core connecting rod 4; the telescopic rod 6 is respectively connected with the core slide block 5 and the power machine 7; the power machine 7 is in driving connection with the telescopic rod 6.

Specifically, when the arc core pulling mechanism of the injection mold is in a working flow, the upper female die 1 and the lower female die 2 are close to each other under the drive of an external power mechanism. And after the upper die 1 and the lower die 2 are mutually close and closed, a forming inner cavity is formed between the upper die and the lower die, and the end part of the arc-shaped core 3 is inserted into the forming inner cavity. But after the injection molding process is finished, the product is molded in the molding cavity. The upper die 1 and the lower die 2 are separated from each other. Then, the power machine 7 is powered to drive the telescopic rod 6 to drive the core slider 5 to act in the direction of the lower die 2. The arc-shaped slideway 201 is provided with an inner slideway tangential to the outer arc of the part to be injection molded; the core slider 5 drives the core link 4 when acting, so that it drives the arc sliding part 301 to be pulled out from the product along the arc slideway 201 around the swing arm 302; during the core pulling operation, the swing arm 302 may operate in the space formed by the swing groove 202. Therefore, the circular arc core pulling mechanism of the injection mold can realize the lateral core pulling action of the circular tube product; the technical problem that a linear core pulling structure in the prior art cannot pull cores of arc-shaped products is avoided. More specifically, in one set of injection mold, a plurality of circular arc core pulling mechanisms may be provided, as long as the arrangement size of the lower die 2 is increased.

Further, an upper template 8 is arranged above the upper female die 1; a lower template 9 is arranged below the lower die 2; a linear core 10 and an inclined guide post 11 are arranged between the upper die plate 8 and the lower die plate 9; the lower template 9 is provided with a linear slideway 901; the linear core 10 is movably connected with the linear slideway 901, and the linear core 10 is arranged on the side surface of the lower die 2. The inclined guide pillar 11 is movably connected with the linear mold core 10, and the inclined guide pillar 11 is connected with the upper mold plate 8. Specifically, the upper die 1 may be sleeved in the upper die plate 8; the lower die 2 can be sleeved in the lower die plate 9; thus, the upper die plate 8 and the lower die plate 9 can be relatively far apart from or close to each other. The inclined guide post 11 is obliquely arranged in the upper template 8; the lower part of the inclined guide post 11 is also movably connected with the execution core 10; when the upper die plate 8 is driven by an external power mechanism to approach the lower die plate 9, the upper die plate 8 drives the inclined guide post 11, and the inclined guide post 11 guides the linear core 10 along the linear slide 901 to be close to the side surface of the lower die 2 when acting; thus, the linear core 10 and the arcuate core 3 together support the inner cavity of the product when the product is in the stage of injection molding. Then, when the upper die plate 8 is driven by an external power mechanism to move away from the lower die plate 9, the inclined guide post 11 is driven to rise so as to guide the linear core 10 to move along the linear slide 901 and move away from the lower die 2, thereby realizing the side linear core pulling action. That is, the arc core-pulling mechanism of the injection mold can simultaneously realize the action requirements of linear core pulling and arc core pulling.

Further, a side connecting frame 12 is arranged on the side surface of the lower template 9; the end of the side connecting frame 12 is fixedly connected with the power machine 7. The side connecting frame 12 is provided with a connecting groove 1201; the telescopic rod 6 is arranged in the connecting groove 1201; the core slider 5 is movably connected with the connecting groove 1201. Specifically, the side connecting frame 12 is convenient for fixedly connecting the power machine 7 to the side surface of the mold; so that the mover 7 drives the motion of the arc-shaped core 3.

In summary, the arc core pulling mechanism of the injection mold is provided with the upper female die 1, the lower female die 2, the arc-shaped core 3, the core connecting rod 4, the core sliding block 5, the telescopic rod 6 and the power machine 7 respectively; the upper female die 1 and the lower female die 2 are arranged in a relatively openable and closable manner, and the upper female die 1 and the lower female die 2 can form an injection molding cavity of a product after being combined. And then the arc-shaped mold core 3 is movably arranged between the upper female mold 1 and the lower female mold 2 to be used as a cavity of an injection molding product. Wherein, the die cavity of pipe class product is arc, and the arc inner wall in remodelling chamber with the radian of the outer wall of arc core 3 identical, thereby, be equipped with power machine 7 can drive through the drive telescopic link 6 core slider 5 and core connecting rod 4, thereby, can make arc core 3 can laminate the inner wall of die cavity and carry out the action of arc core-pulling. Therefore, the circular arc core pulling mechanism of the injection mold solves the technical problem of how to enable circular arc lateral core pulling of circular tube products.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The utility model provides an injection mold circular arc mechanism of loosing core which characterized in that, it includes: the die comprises an upper female die (1), a lower female die (2), an arc-shaped core (3), a core connecting rod (4), a core sliding block (5), a telescopic rod (6) and a power machine (7); the upper female die (1) and the lower female die (2) are arranged in a relatively opening and closing manner; the lower female die (2) is provided with an arc-shaped slideway (201) and a swinging clamping groove (202); the arc-shaped core (3) is provided with an arc-shaped sliding part (301) and a swing arm (302); the arc sliding part (301) is movably connected with the arc slideway (201); the swing arm (302) is movably connected with the swing clamping groove (202); the core connecting rod (4) is connected with the end part of the arc-shaped sliding part (301); the core slide block (5) is connected with the core connecting rod (4); the telescopic rod (6) is respectively connected with the core slide block (5) and the power machine (7); the power machine (7) is in driving connection with the telescopic rod (6).

2. The arc core pulling mechanism of an injection mold according to claim 1, wherein: an upper template (8) is arranged above the upper female die (1).

3. The arc core pulling mechanism of an injection mold according to claim 2, wherein: a lower template (9) is arranged below the lower female die (2).

4. The arc core pulling mechanism of the injection mold according to claim 3, wherein: a linear core (10) and an inclined guide pillar (11) are arranged between the upper die plate (8) and the lower die plate (9).

5. The arc core pulling mechanism of an injection mold according to claim 4, wherein: the lower template (9) is provided with a linear slideway (901).

6. The arc core pulling mechanism of an injection mold according to claim 5, wherein: the linear mold core (10) is movably connected with the linear slide way (901), and the linear mold core (10) is arranged on the side face of the lower female mold (2).

7. The arc core pulling mechanism of the injection mold according to claim 6, wherein: the inclined guide pillar (11) is movably connected with the linear mold core (10), and the inclined guide pillar (11) is connected with the upper mold plate (8).

8. The arc core pulling mechanism of an injection mold according to claim 7, wherein: a side connecting frame (12) is arranged on the side surface of the lower template (9); the end part of the side connecting frame (12) is fixedly connected with the power machine (7).

9. The arc core pulling mechanism of an injection mold according to claim 8, wherein: the side connecting frame (12) is provided with a connecting groove (1201).

10. The arc core pulling mechanism of an injection mold according to claim 9, wherein: the telescopic rod (6) is arranged in the connecting groove (1201); the core slide block (5) is movably connected with the connecting groove (1201).