An injection mold

Abstract

The utility model relates to a kind of inverted injection mold in the mould field, including fixed mould and movable mould, fixed mould and movable mould are equipped with core and cavity respectively, injection tube connected with core is equipped in fixed mould, the both sides of fixed mould are equipped with driving element, and the output end of driving element is installed with push plate, the side of push plate is equipped with ejector pin matched with core, ranging sensor matched with driving element is equipped between fixed mould and movable mould, the side of fixed mould is equipped with contact sensor matched with push plate.The utility model realizes the function of automatic discharging by the sliding cooperation of ejector pin and core.And by the cooperation of ranging sensor, driving element and contact sensor, driving element can drive ejector pin to reciprocate when maintaining appropriate distance between movable mould and fixed mould.And after push plate contacts with contact sensor, mold can only be executed mold closing operation, so as to avoid the contact between ejector pin and cavity when ejector pin is not completely reset, leading to the situation of ejector pin bending, breaking, cavity damage or scratching.

Description

TECHNICAL FIELD

[0001] The utility model relates to the mould field, concretely relates to a flip injection mold. BACKGROUND

[0002] Injection mold is a special tool used in plastic injection molding process. Its working principle is to inject heated and molten plastic into the mold cavity, and finally obtain the required shape of plastic products through the process of cooling and solidification. This mold can efficiently and accurately produce various complex shapes and high-precision plastic products, such as automobile parts, electronic housings, household appliances, toys, etc. Due to its efficiency and accuracy in the production process, injection mold plays a crucial role in modern industrial production and becomes an indispensable part of modern manufacturing. With the development of the times, the automation level of injection mold is also continuously improved. Through simple operation, continuous production can be realized, greatly reducing the need for manual operation and improving production efficiency.

[0003] The existing injection mold realizes the effect of automatic discharging by the reciprocating movement of the ejector pin through the reset spring or the driving part. However, due to the lack of detection components, in the case of spring failure or driving part failure, the ejector pin is not completely reset, and the mold still automatically operates according to the program, causing the ejector pin to be squeezed by the cavity and bent or broken, resulting in damage or scratching of the cavity. Therefore, the utility model provides a flip injection mold. SUMMARY

[0004] The utility model provides a kind of flip injection mold, and the problem that the collision between ejector pin and cavity is caused and the cavity is damaged or scratched is solved by the cooperation of detection component and driving part.

[0005] The purpose of the utility model is achieved by the following way:

[0006] A kind of flip injection mold, including fixed mould and movable mould, the fixed mould and the movable mould are respectively provided with the core and the cavity that mutually cooperate, the fixed mould is provided with the injection tube being connected with the core, the both sides of the fixed mould are provided with driving part, the output end of the driving part is installed with push plate, the one side of the push plate is provided with the ejector pin being cooperated with the core, the fixed mould and the movable mould are provided with the distance sensor being cooperated with the driving part, the one side of the fixed mould is provided with the contact sensor being cooperated with the push plate.

[0007] Further, the push plate is respectively provided with through hole and inclined block being cooperated with the ejector pin, and the ejector pin is slidably installed on the inclined block.

[0008] Further, the inclined block is provided with limiting slot, and the ejector pin is provided with limiting block being cooperated with the limiting slot.

[0009] Further, one side of the push plate is provided with a pressing block matched with the contact sensor.

[0010] Further, the pressing block is slidably installed on one side of the push plate through a waist-shaped hole.

[0011] Further, both sides of the movable mold are provided with rotating blocks, and both the movable mold and the fixed mold are provided with fixing pins matched with the rotating blocks.

[0012] Further, a counter is arranged between the fixed mold and the movable mold.

[0013] The utility model discloses the beneficial effects: through the slide cooperation of ejector pin and core, realizes the function of automatic blanking. And through the cooperation of distance measuring sensor, driving part and contact sensor, when the driving part keeps proper distance between movable mold and fixed mold, can drive ejector pin to reciprocate. And after the push plate contacts the contact sensor, the mold can only execute the mold closing operation, thereby avoiding the contact between ejector pin and cavity when the ejector pin is not completely reset, resulting in the bending, fracture of ejector pin, cavity damage or scratch and so on. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the first structure schematic drawing of a kind of inverted injection mold of the utility model;

[0015] Figure 2 It is the second structure schematic drawing of a kind of inverted injection mold of the utility model;

[0016] Figure 3 It is the first sectional view of a kind of inverted injection mold of the utility model;

[0017] Figure 4 It is the second sectional view of a kind of inverted injection mold of the utility model;

[0018] Figure 5 It is Figure 3 the enlarged schematic drawing of A in middle;

[0019] Figure 6 It is Figure 3 the enlarged schematic drawing of B in middle;

[0020] Figure 7 It is the structure schematic drawing of fixed mold in the utility model;

[0021] Figure 8 It is Figure 7 the enlarged schematic drawing of C in middle;

[0022] Figure 9 It is the structure schematic drawing of movable mold in the utility model;

[0023] Figure 10 is a structure diagram of the ejector pin in the utility model;

[0024] Figure 11 is a structure diagram of the inclined block in the utility model;

[0025] In the drawing, the reference signs are respectively: 1 - fixed mold, 1A - core, 2 - movable mold, 2A - cavity, 3 - injection tube, 4 - driving member, 5 - push plate, 6 - ejector pin, 6A - limiting block, 7 - distance measuring sensor, 8 - contact sensor, 9 - through hole, 10 - inclined block, 10A - limiting groove, 11 - pressing block, 11A - waist-shaped hole, 12 - rotating block, 13 - fixing pin, 14 - counter. DETAILED DESCRIPTION

[0026] The utility model will be described in further detail below in combination with the drawings and specific embodiments.

[0027] In this embodiment, refer to Figures 1-11 The specific implementation of a flip injection mold, including fixed mold 1 and movable mold 2, fixed mold 1 and movable mold 2 are respectively provided with core 1A and cavity 2A that mutually cooperate, fixed mold 1 is provided with injection tube 3 that is connected with core 1A, fixed mold 1 and movable mold 2 are respectively provided with cooling pipeline that cooperates with core 1A and cavity 2A, both sides of fixed mold 1 are provided with driving member 4, the output end of driving member 4 is installed with push plate 5, both sides of push plate 5 are respectively provided with fixed groove that cooperates with driving member 4, one side of push plate 5 is provided with ejector pin 6 that cooperates with core 1A, the distance measuring sensor 7 that cooperates with driving member 4 is arranged between fixed mold 1 and movable mold 2, one side of fixed mold 1 is provided with contact sensor 8 that cooperates with push plate 5.

[0028] When the distance measuring sensor 7 detects that the distance between movable mold 2 and fixed mold 1 is greater than the set value, a signal is sent, so that driving member 4 starts to work, driving member 4 drives ejector pin 6 to slide through push plate 5, and the workpiece after injection molding on core 1A is pushed out, so that automatic discharging is completed, when ejector pin 6 completely retreats to the initial position, contact sensor 8 and push plate 5 come into contact, so that a signal is sent, so that driving member 4 stops working at the same time, and fixed mold 1 and movable mold 2 perform mold closing action, and the next injection cycle is performed, so that automatic injection is realized, and the situation that ejector pin 6 is bent, broken, the mold is damaged or cannot be used normally when ejector pin 6 does not completely reset and contacts movable mold 2 is avoided.

[0029] In this embodiment, push plate 5 is combined by two plates, and the plates are firmly fixed on the output end of driving member 4 through cooperation between the plates, so that push plate 5 has better stability and durability during work. In addition, the cooperation design between the plates also allows the position of the ejector pin to be replaced after replacing the workpiece, so as to adapt to workpieces of different sizes and shapes, thereby improving the flexibility of the mold.

[0030] The driving member 4 can adopt a cylinder or a hydraulic cylinder to realize the reciprocating effect. In the embodiment, a cylinder is adopted as the driving member 4, and the ejection and retraction actions of the ejector pin 6 are accurately controlled by controlling the air pressure of the cylinder. The use of the cylinder not only improves the response speed of the action, but also has a simpler structure and lower maintenance cost compared with a hydraulic system. In addition, one side of the fixed mold 1 is also provided with an electromagnetic control valve matched with the injection pipe 3. Through the cooperation of the electromagnetic control valve and the injection pipe 3, the material flow and pressure in the injection process can be accurately controlled to ensure the accuracy and consistency of each injection. The fast response characteristics of the electromagnetic control valve make the injection process more stable, and at the same time reduce the material waste caused by improper operation or equipment failure.

[0031] In addition, a counter 14 is also arranged between the fixed mold 1 and the movable mold 2. When the fixed mold 1 and the movable mold 2 come into contact, the counter 14 can automatically record the number of injection cycles to provide accurate data support for the production process. The arrangement of the counter 14 helps to monitor the use frequency of the mold, so as to reasonably arrange the maintenance and replacement time, and ensure the production efficiency and product quality. In addition, the counter 14 can also be connected with the control system to realize real-time monitoring and analysis of production data, and further optimize the production process. In this way, the counter 14 can not only provide real-time feedback of the mold usage, but also analyze the wear trend and service life of the mold through long-term data accumulation, to provide a scientific basis for the maintenance and replacement of the mold.

[0032] In addition, the push plate 5 is respectively provided with a through hole 9 matched with the ejector pin 6 and an inclined block 10, and the ejector pin 6 is slidably installed on the inclined block 10. The inclined block 10 is fixed on the push plate 5 by bolts. The inclined block 10 is provided with a limiting groove 10A, and the ejector pin 6 is provided with a limiting block 6A matched with the limiting groove 10A. Through the cooperation of the ejector pin 6 with the through hole 9 and the inclined block 10, the ejector pin 6 can push the workpiece in a way of inclined or straight. The inclined way avoids clamping the workpiece during ejection, which causes the workpiece to be unable to fall off and affects the continuity of production. Through the cooperation of the limiting groove 10A and the limiting block 6A, the movement range of the ejector pin 6 is accurately controlled to ensure that it moves with the push plate 5, and at the same time, the ejector pin 6 is prevented from deviating to cause damage to the workpiece or the mold.

[0033] In the embodiment, one side of the push plate 5 is provided with a pressing block 11 matched with the contact sensor 8. The pressing block 11 is slidably installed on one side of the push plate 5 through a waist-shaped hole 11A. The arrangement of the waist-shaped hole 11A enables the pressing block 11 to be adjusted and fixed according to different needs, so that the cooperation between the push plate 5 and the contact sensor 8 is more accurate. Therefore, the adaptability and reliability of the mold are improved.

[0034] The movable die 2 is provided with rotating blocks 12 on both sides, and the fixed die 1 and the movable die 2 are provided with fixed pins 13 matched with the rotating blocks 12. Threaded holes matched with the fixed pins 13 are arranged at both ends of the rotating blocks 12. Through the cooperation of the fixed pins 13 and the rotating blocks 12, the fixed die 1 and the movable die 2 are fixed and loosened. When the injection mold is used, the rotating blocks 12 are rotated to a specific position, so that the fixed pins 13 can be smoothly inserted into the through holes 9, the rotating blocks 12 are fixed to the movable die 2, and the injection processing is avoided. When the injection mold is transported or idle, the through holes 9 at both ends of the rotating blocks 12 are respectively aligned with the movable die 2 and the fixed die 1, and the fixed pins 13 are inserted, so that the fixed die 1 and the movable die 2 are firmly connected together, and relative displacement is avoided during transportation or storage, so that the mold is protected from damage.

[0035] In addition, the fixed die 1 is provided with a guide shaft matched with the movable die 2, and the movable die 2 is provided with a guide groove matched with the guide shaft. Through the cooperation of the guide shaft and the guide groove, the movable die 2 can be accurately aligned with the fixed die 1 during injection molding, so that the parameter deviation between the core 1A and the cavity 2A is avoided, and the size inconsistency or appearance defects of the product are avoided. Therefore, the closing accuracy of the mold and the quality of the injection molded product are ensured.

[0036] The beneficial effects of the utility model are as follows: through the sliding cooperation of the ejector pin 6 and the core 1A, the automatic feeding function is realized. Through the cooperation of the distance measuring sensor 7, the driving part 4 and the contact sensor 8, the driving part 4 can drive the ejector pin 6 to reciprocate when the driving part 4 keeps a proper distance between the movable die 2 and the fixed die 1. After the push plate 5 contacts the contact sensor 8, the mold can perform the mold closing operation, so that the contact between the ejector pin 6 and the cavity 2A when the ejector pin 6 is not completely reset is avoided, and the bending, fracture, damage or scratching of the cavity 2A and other conditions are avoided.

[0037] The above is only the preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model discloses the above preferred embodiment, it is not used to limit the utility model. Any skilled person in the art can make some changes or modifications within the scope of the technical scheme of the utility model by using the disclosed technical content, and equivalent embodiments with equivalent changes. Any simple modification, equivalent change and modification of the above embodiment within the scope of the technical scheme of the utility model are all within the scope of the technical scheme of the utility model.

Claims

1. An inverted injection mold, comprising a fixed mold (1) and a movable mold (2), wherein the fixed mold (1) and the movable mold (2) are respectively provided with a core (1A) and a cavity (2A) that cooperate with each other, characterized in that: The fixed mold (1) is provided with an injection tube (3) connected to the core (1A). Both sides of the fixed mold (1) are provided with driving components (4). A push plate (5) is installed on the output end of the driving component (4). One side of the push plate (5) is provided with an ejector pin (6) that cooperates with the core (1A). A distance sensor (7) that cooperates with the driving component (4) is provided between the fixed mold (1) and the moving mold (2). A contact sensor (8) that cooperates with the push plate (5) is provided on one side of the fixed mold (1).

2. The inverted injection mold according to claim 1, characterized in that: The push plate (5) is provided with a through hole (9) and an inclined block (10) that cooperate with the ejector pin (6), and the ejector pin (6) is slidably mounted on the inclined block (10).

3. The inverted injection mold according to claim 2, characterized in that: The inclined block (10) is provided with a limiting groove (10A), and the ejector pin (6) is provided with a limiting block (6A) that cooperates with the limiting groove (10A).

4. The inverted injection mold according to claim 1, characterized in that: The push plate (5) has a pressure block (11) on one side that cooperates with the contact sensor (8).

5. The inverted injection mold according to claim 4, characterized in that: The pressure block (11) is slidably mounted on one side of the push plate (5) through the waist-shaped hole (11A).

6. The inverted injection mold according to claim 1, characterized in that: The moving mold (2) is provided with rotating blocks (12) on both sides, and the fixed mold (1) and the moving mold (2) are provided with fixing pins (13) that cooperate with the rotating blocks (12).

7. An inverted injection mold according to any one of claims 1-6, characterized in that: A counter (14) is provided between the fixed mold (1) and the moving mold (2).

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