Mould of demoulding mechanism for inverted buckle in multi-cavity product

Abstract

The utility model relates to the technical field of back-off demoulding mechanisms, and discloses a mould of a back-off demoulding mechanism in a multi-cavity product, which comprises a top plate, a first connecting plate is arranged at the bottom of the top plate, a first brass plate is arranged at the bottom of the first connecting plate, and a second brass plate is arranged at the bottom of the first brass plate. A fixing plate is arranged at the bottom of the second brass plate, a second connecting plate is arranged at the bottom of the fixing plate, a supporting plate is arranged at the bottom of the second connecting plate, a bottom plate is arranged at the bottom of the supporting plate, a connecting assembly is arranged on the side back of the first connecting plate, and a cushioning assembly is arranged at the bottom of the second connecting plate. According to the utility model, the supporting plate is stressed to drive the ejector pin at the top to move, and the ejector pin moves in the second mold and ejects a product out at the same time, so that the demolding mode effect that the push plate is matched with the ejector pin is achieved, and the problem that the damage rate of the product is increased due to the single use of one demolding mode is solved; and the mold practicability of the inner back-off demolding mechanism is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a reverse buckle demolding mechanism technical field especially relates to a mould of multi -cavity product inner reverse buckle demolding mechanism. BACKGROUND

[0002] Multi -cavity mould is widely used in the mass production various parts to meet the growing market demand. Among them, the multi -cavity product mould technology involving inner reverse buckle structure is particularly key, because inner reverse buckle structure can realize specific function in product design, but brings great trouble to demolding process. How to ensure production efficiency, ensure that product demolding is smooth and lossless, become the core concern of multi -cavity product inner reverse buckle demolding mechanism mould research and development, and its development plays a decisive role in improving the product quality and production benefit of the whole manufacturing industry.

[0003] The mechanical structure of the traditional mould for the multi -cavity product of inner reverse buckle structure is often single. Commonly, it is simply relied on the design of push plate demolding, and the push plate is connected with the bottom or side of the mould cavity, and the push plate is driven to translate as a whole by external power during demolding, trying to push the product out of the cavity. Its technical principle is based on the large-area pushing of the push plate to the product, and uses the friction between the product and the cavity and the external force applied by the push plate to overcome the adhesion between the product and the mould. Another structure is only used for ejector pin demolding, and a plurality of ejector pins are arranged in the mould, one end of the ejector pin contacts a specific part of the product, and when the ejector pin is driven to rise, the product is separated from the mould by the local force of the ejector pin on the product, and the layout and length of the ejector pin are usually determined according to the shape of the product and the demolding requirement.

[0004] However, the traditional mould using a single demolding method in the prior art has serious defects. For example, in the case of push plate demolding, when facing the inner reverse buckle structure, the push plate is difficult to precisely control the pushing force on the inner reverse buckle part, which is easy to cause the deformation or even fracture of the inner reverse buckle part due to bearing excessive lateral force. When only using ejector pin demolding, the action point of the ejector pin on the product is concentrated, and when the inner reverse buckle structure of the product is complex or closely cooperates with the mould, the local pressure of the ejector pin will cause stress concentration of the product during demolding, causing local damage of the product, such as surface scratch and inner reverse buckle breakage, which undoubtedly greatly increases the damage rate of the product, reduces the qualified rate of the product, increases the production cost, and seriously restricts the efficient application of the multi -cavity product inner reverse buckle mould in the manufacturing industry. Therefore, a mould of multi -cavity product inner reverse buckle demolding mechanism is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a mould of multi -cavity product inner reverse buckle demolding mechanism, which aims at improving the problem of low product qualified rate caused by using a single demolding method in the prior art.

[0006] In order to achieve the above object, the utility model adopts the following technical scheme:

[0007] A mould of a multi-cavity product inner reverse buckle demoulding mechanism, including top plate, first connecting plate is arranged at the bottom of top plate, first brass plate is arranged at the bottom of first connecting plate, second brass plate is arranged at the bottom of first brass plate, fixed plate is arranged at the bottom of second brass plate, second connecting plate is arranged at the bottom of fixed plate, supporting plate is arranged at the bottom of second connecting plate, bottom plate is arranged at the bottom of supporting plate, connecting assembly is arranged at the back of first connecting plate side, shock attenuation assembly is arranged at the bottom of second connecting plate;

[0008] As a further description of the above technical scheme:

[0009] The connecting assembly includes a junction box, the junction box is fixedly connected to the sidewall of the first connecting plate, the connecting assembly is used for connecting a sensor, and the first connecting plate is provided with a feeding assembly at the bottom;

[0010] As a further description of the above technical scheme:

[0011] The feeding assembly includes a feeding rod, the feeding rod is fixedly connected to the bottom of the first connecting plate, the feeding rod is slidably connected to the inside of the first brass plate, the first brass plate is fixedly connected with a third fixed column at the bottom, and the first brass plate is provided with a cooling assembly at the sidewall;

[0012] As a further description of the above technical scheme:

[0013] The cooling assembly includes a cooling ring, the cooling ring is fixedly connected to the sidewall of the first brass plate, the cooling ring is fixedly connected to the inside of the first brass plate, and the first brass plate is provided with a tooling assembly at the bottom;

[0014] As a further description of the above technical scheme:

[0015] The tooling assembly includes a first mould, the first mould is fixedly connected to the bottom of the first brass plate, the first mould is fixedly connected to the top of the second brass plate at the bottom, and the second brass plate is provided with a circulating assembly at the sidewall;

[0016] As a further description of the above technical scheme:

[0017] The circulating assembly includes a circulating pipe, the circulating pipe is fixedly connected to the sidewall of the second brass plate, the circulating pipe is fixedly connected to the inside of the second brass plate, and the second brass plate is provided with a mould assembly at the inside;

[0018] As a further description of the above technical scheme:

[0019] The mold assembly comprises a second mold, the outer wall of the second mold is slidably connected in the second brass plate, and a model is arranged at the top of the second mold.

[0020] Further description of the above technical scheme is as follows:

[0021] The shock-absorbing assembly comprises a first fixed column, the top of the first fixed column is slidably connected in the second connecting plate, a spring is arranged on the outer wall of the first fixed column, the top of the spring is fixedly connected to the bottom of the second connecting plate, the other end of the spring is fixedly connected to the top of the supporting plate, a thimble is fixedly connected to the top of the supporting plate, the outer wall of the thimble is slidably connected in the second mold, and a supporting assembly is arranged at the bottom of the supporting plate.

[0022] Further description of the above technical scheme is as follows:

[0023] The supporting assembly comprises a bottom plate, the top of the bottom plate is fixedly connected to the bottom of the supporting plate, a second fixed column is fixedly connected to the top of the bottom plate, and the outer wall of the second fixed column is slidably connected in the supporting plate.

[0024] The utility model has the advantages of the following beneficial effects:

[0025] In the utility model, the thimble at the top of the supporting plate is driven to move by stress, the thimble moves in the second mold, and the product is pushed out at the same time, the effect of the stripping mode of the push plate matched with the thimble is achieved, the problem that the damage rate of the product is increased due to the single use of one stripping mode is solved, and the practicability of the mold of the inner undercut stripping mechanism is improved. DRAWINGS

[0026] Fig. 1 A three-dimensional schematic view of a mold of a multi-cavity product inner undercut stripping mechanism is provided in the utility model;

[0027] Fig. 2 A top plate explosion structure schematic view of a mold of a multi-cavity product inner undercut stripping mechanism is provided in the utility model;

[0028] Fig. 3 A fixed plate explosion structure schematic view of a mold of a multi-cavity product inner undercut stripping mechanism is provided in the utility model.

[0029] LEGEND:

[0030] 1, top plate; 2, first connecting plate; 3, first brass plate; 4, second brass plate; 5, fixed plate; 6, second connecting plate; 7, support plate; 8, junction box; 9, feeding rod; 10, first mold; 11, model; 12, second mold; 13, spring; 14, first fixed column; 15, thimble; 16, second fixed column; 17, cooling ring; 18, circulating pipe; 19, third fixed column; 20, bottom plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0032] Referring to Figs. 1-3The utility model provides a kind of mould of multi-cavity product inner undercut demolding mechanism, including top plate 1, top plate 1 adopts high-strength aluminum alloy material, aluminum alloy has lighter quality, higher strength and good corrosion resistance, and top plate 1 bottom is provided with first connecting plate 2, and first connecting plate 2 bottom is provided with first brass plate 3, and first brass plate 3 bottom is provided with second brass plate 4, and first brass plate 3 and second brass plate 4 adopt high thermal conductivity brass alloy.In injection molding process, this brass alloy can quickly transfer heat, so that the raw materials in the mold are quickly cooled and formed, greatly improving the production efficiency, and second brass plate 4 bottom is provided with fixed plate 5, and fixed plate 5 bottom is provided with second connecting plate 6, and second connecting plate 6 adopts carbon steel material, and carbon steel has high strength and toughness, and can withstand the force from other parts of the mold, and second connecting plate 6 bottom is provided with support plate 7, and support plate 7 bottom is provided with bottom plate 20, and first connecting plate 2 side back is provided with connecting assembly, and second connecting plate 6 bottom is provided with shock absorption assembly, and connecting assembly includes junction box 8, and junction box 8 adopts fireproof and insulating engineering plastic material, which can effectively protect the internal wire connection and prevent fire caused by short circuit and other electrical problems, and junction box 8 side wall is fixedly connected to the side wall of first connecting plate 2, and connecting assembly is used to connect sensor, and first connecting plate 2 bottom is provided with feeding assembly, and feeding assembly includes feeding rod 9, and feeding rod 9 top is fixedly connected to the bottom of first connecting plate 2, and feeding rod 9 outer wall is slidably connected to the inside of first brass plate 3, and first brass plate 3 bottom is fixedly connected with third fixed column 19, and first brass plate 3 side wall is provided with cooling assembly, and cooling assembly includes cooling ring 17, and cooling ring 17 side wall is fixedly connected to the side wall of first brass plate 3, and cooling ring 17 outer wall is fixedly connected to the inside of first brass plate 3, and first brass plate 3 bottom is provided with tooling assembly, and tooling assembly includes first mold 10, and first mold 10 top is fixedly connected to the bottom of first brass plate 3, and first mold 10 bottom is fixedly connected to the top of second brass plate 4, and second brass plate 4 side wall is provided with circulating assembly, and circulating assembly includes circulating pipe 18, and circulating pipe 18 side wall is fixedly connected to the side wall of second brass plate 4, and circulating pipe 18 outer wall is fixedly connected to the inside of second brass plate 4, and second brass plate 4 inside is provided with mold assembly, and mold assembly includes second mold 12, and second mold 12 selects hot work die steel, and hot work die steel has good high-temperature strength, toughness and thermal fatigue performance, and can adapt to high temperature and high pressure environment in injection molding process, and second mold 12 outer wall is slidably connected to the inside of second brass plate 4, and second mold 12 top is provided with model 11, and model 11 bottom is arranged on the top of second brass plate 4, and shock absorption assembly includes first fixed column 14, and first fixed column 14 adopts quenched steel material, and hardness is greatly improved after quenching treatment, and can withstand greater pressure and friction, stably support spring and transmit force during mold opening and demolding process, and first fixed column 14 top is slidably connected to the inside of second connecting plate 6, and first fixed column 14 outer wall is provided with spring 13,The spring 13 is fixedly connected at the top of the second connecting plate 6, and the other end of the spring 13 is fixedly connected at the top of the supporting plate 7. The supporting plate 7 is fixedly connected with a thimble 15 at the top. The thimble 15 is slidably connected at the inner part of the second mold 12. The supporting plate 7 is provided with a supporting assembly at the bottom. The supporting assembly comprises a bottom plate 20, which is fixedly connected at the bottom of the supporting plate 7. The bottom plate 20 is fixedly connected with a second fixed column 16 at the top. The second fixed column 16 is made of carbon steel, which has high strength and stability to ensure the position accuracy of the supporting plate 7 in the vertical direction, prevent the supporting plate from shifting or shaking during the working process, and ensure the normal operation of the mold. The outer wall of the second fixed column 16 is slidably connected in the inner part of the supporting plate 7.

[0033] Specifically, when using the mold with the inner undercut demolding mechanism to carry out production operations, the injection molding step is the key starting step of the entire process. At this time, the feeding rod 9 shoulders the important mission of conveying raw materials, and it accurately and stably conveys the pretreated raw materials to the internal cavity of the first mold 10. The first mold 10 ensures that the raw materials are properly stored in the cavity by virtue of its precisely designed sealing structure, avoiding leakage of the raw materials and laying the foundation for the subsequent molding process. Under the synergistic action of process parameters such as injection pressure and temperature, the raw materials gradually form on the surface of the model 11, and the shape closely fits the contour of the model, forming a product prototype with specific structure and dimensional accuracy requirements. When the product is molded and enters the demolding stage, the operation of this process requires high precision and coordination. First, the support plate 7 starts to move under the action of the external driving device, and its upward displacement movement drives the first fixed column 14 at the top to move synchronously. In this process, the spring 13 sheathed on the outer wall of the first fixed column 14 plays an important buffering and auxiliary role. With the movement of the first fixed column 14, the spring 13 is deformed under stress, which not only can absorb part of the impact force generated by the movement of the parts, ensuring the smooth operation of the entire demolding system, but also provides a certain elastic recovery force for the subsequent demolding action. At the same time, the movement of the support plate 7 also triggers a series of chain reactions. It drives the top pin 15 at the top to start moving, and the top pin 15 smoothly slides along the pre-designed guide channel inside the second connecting plate 6 and the fixed plate 5, and continues to extend to the inside of the second mold 12. Under the pushing action of the top pin 15, the second mold 12 produces a corresponding displacement, gradually pushing the product shaped on the outer surface of the model 11 out of the mold cavity. Through the coordinated operation of this carefully designed demolding mechanism, stable demolding of the product is successfully achieved, effectively avoiding problems such as product deformation or damage caused by improper demolding, ensuring that the product can be completely and high-quality demolded from the mold. After demolding is completed, in order to ensure the performance of the mold and the quality of the next injection molding, the cooling link is crucial. The cooling system composed of the cooling ring 17 and the circulating pipe 18 starts to work, and the circulating water continuously flows therein. The circulating water exchanges heat with the first brass plate 3 and the second brass plate 4, taking away the heat absorbed by the mold during the injection and demolding processes, so that the temperature of the first brass plate 3 and the second brass plate 4 is always maintained within a constant and suitable range. This stable temperature environment helps to maintain the dimensional accuracy and mechanical properties of the mold, ensuring that the mold can stably and reliably operate in the long-term use process, providing a solid guarantee for subsequent production operations, effectively improving the production efficiency and the stability of product quality.

[0034] Working principle: when using the mold of the inner undercut demolding mechanism, the raw material is flowed into the inside of the first mold 10 through the feeding rod 9 in the injection molding process, and is sealed by the first mold 10, and the surface of the model 11 is shaped, when demolding the model, first, the first fixed column 14 at the top is moved by the support plate 7 under the force, then the first fixed column 14 moves while driving the outer wall spring 13 to shrink, and the support plate 7 moves while driving the top needle 15 to slide in the inside of the second connecting plate 6 and the fixed plate 5, and will slide in the inside of the second mold 12, then the second mold 12 pushes the product shaped on the outer surface of the model 11 out, and the effect of stable demolding is achieved, then the temperature of the first brass plate 3 and the second brass plate 4 is ensured at a constant temperature by circulating water through the cooling ring 17 and the circulating pipe 18.

[0035] Finally, it should be noted that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement to part of technical features, any modification, equivalent replacement, improvement etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A mold for an internal undercut demolding mechanism of a multi-cavity product, comprising a top plate (1), characterized in that: The top plate (1) is provided with a first connecting plate (2) at the bottom, the first connecting plate (2) is provided with a first brass plate (3) at the bottom, the first brass plate (3) is provided with a second brass plate (4) at the bottom, the second brass plate (4) is provided with a fixing plate (5) at the bottom, the fixing plate (5) is provided with a second connecting plate (6) at the bottom, the second connecting plate (6) is provided with a support plate (7) at the bottom, the support plate (7) is provided with a bottom plate (20) at the bottom, the first connecting plate (2) is provided with a connecting component on its side, and the second connecting plate (6) is provided with a shock-absorbing component at its bottom.

2. The mold for a multi-cavity product internal undercut demolding mechanism according to claim 1, characterized in that: The connection assembly includes a junction box (8), the side wall of which is fixedly connected to the side wall of the first connection plate (2). The connection assembly is used to connect the sensor, and a feeding assembly is provided at the bottom of the first connection plate (2).

3. The mold for a multi-cavity product internal undercut demolding mechanism according to claim 2, characterized in that: The feeding assembly includes a feeding rod (9), the top of which is fixedly connected to the bottom of the first connecting plate (2), the outer wall of which is slidably connected to the inside of the first brass plate (3), the bottom of the first brass plate (3) is fixedly connected to a third fixing column (19), and a cooling assembly is provided on the side wall of the first brass plate (3).

4. The mold for a multi-cavity product internal undercut demolding mechanism according to claim 3, characterized in that: The cooling assembly includes a cooling ring (17), the sidewall of which is fixedly connected to the sidewall of the first brass plate (3), the outer wall of which is fixedly connected to the inside of the first brass plate (3), and a tooling assembly is provided at the bottom of the first brass plate (3).

5. The mold for a multi-cavity product internal undercut demolding mechanism according to claim 4, characterized in that: The tooling assembly includes a first mold (10), the top of the first mold (10) is fixedly connected to the bottom of the first brass plate (3), the bottom of the first mold (10) is fixedly connected to the top of the second brass plate (4), and a circulation assembly is provided on the side wall of the second brass plate (4).

6. The mold for a multi-cavity product internal undercut demolding mechanism according to claim 5, characterized in that: The circulation assembly includes a circulation pipe (18), the sidewall of which is fixedly connected to the sidewall of the second brass plate (4), the outer wall of which is fixedly connected to the inside of the second brass plate (4), and a mold assembly is provided inside the second brass plate (4).

7. The mold for a multi-cavity product internal undercut demolding mechanism according to claim 6, characterized in that: The mold assembly includes a second mold (12), the outer wall of which is slidably connected to the inside of the second brass plate (4), a model (11) is provided on the top of the second mold (12), and the bottom of the model (11) is provided on the top of the second brass plate (4).

8. The mold for a multi-cavity product internal undercut demolding mechanism according to claim 1, characterized in that: The shock-absorbing component includes a first fixed column (14), the top of which is slidably connected to the inside of a second connecting plate (6). A spring (13) is provided on the outer wall of the first fixed column (14). The top of the spring (13) is fixedly connected to the bottom of the second connecting plate (6). The other end of the spring (13) is fixedly connected to the top of a support plate (7). A ejector pin (15) is fixedly connected to the top of the support plate (7). The outer wall of the ejector pin (15) is slidably connected to the inside of a second mold (12). A support component is provided at the bottom of the support plate (7).

9. The mold for a multi-cavity product internal undercut demolding mechanism according to claim 8, characterized in that: The support assembly includes a base plate (20), the top of which is fixedly connected to the bottom of the support plate (7), and a second fixing column (16) is fixedly connected to the top of the base plate (20), the outer wall of which is slidably connected to the inside of the support plate (7).

Images