Inverted ejection mold

Abstract

The utility model relates to the technical field of inverted ejection molds, and discloses an inverted ejection mold which comprises a top plate, a second mold plate arranged at the top of a bottom plate, a third mold plate arranged at the top of the second mold plate, a first side supporting plate arranged at the top of the third mold plate, and a second side supporting plate arranged at the top of the third mold plate. A water circulation layer plate is arranged at the top of the first side supporting plate, a first mold plate is arranged at the top of the water circulation layer plate, a top plate is arranged at the top of the first mold plate, and a first supporting plate is fixedly connected between the first side supporting plate and the second side supporting plate. According to the hydraulic buffer, the sensing shaft is pressed, the sliding plate drives the sensing point to abut against the sensor, signals are transmitted to the receiver, the receiver drives the hydraulic cylinder, the effect of preventing the die from being crushed is achieved, and the problems that in the prior art, a hydraulic buffer has strict requirements for the working environment, and the buffering effect is reduced due to the low temperature are solved. And the practicability of the inverted ejection mold is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flip ejection mould technical field especially flip ejection mould. BACKGROUND

[0002] The flip ejection mould is a kind of mould type playing a key role in the manufacturing process such as plastic injection molding, metal die casting etc. It mainly realizes the ejection demolding process of product through unique structural design. Unlike common mould, the ejection mechanism of flip ejection mould is arranged at the movable mould side of mould, and the ejection mechanism of common mould is mostly located in the fixed mould part. After the molding process is completed, the movable mould retreats, and the ejection mechanism of flip starts to work, accurately and powerfully ejects the molded product from the mould cavity, so that the product can be demolded smoothly, and the deformation, scratch and other defects of product caused by improper demolding can be greatly reduced, the molding quality and production efficiency of product are effectively improved, and it is widely applied to various industrial production fields with high requirements on product precision and appearance.

[0003] In the prior art, although the flip ejection mould using hydraulic buffer to prevent the mould from being crushed has certain effect, it still has many drawbacks. Firstly, the cost of hydraulic buffer is high, whether the procurement cost of itself or the cost of matching hydraulic pipeline, joint and other accessories, the manufacturing cost of mould is greatly increased, which is undoubtedly a heavy economic burden for some production projects with limited budget. Secondly, the maintenance of hydraulic buffer is complex and costly, the hydraulic oil inside needs to be checked and replaced regularly, and the sealing element is easy to age and damage. Once leakage or failure occurs, not only the buffering function is lost, but also the mould and surrounding environment are polluted, the normal production is affected, and professional technicians and special tools are needed for maintenance, further increasing the maintenance cost and downtime. Thirdly, the working environment requirement of hydraulic buffer is relatively harsh, and its performance is easily affected in the environment with large temperature change or much dust, for example, low temperature increases the viscosity of hydraulic oil, affecting the buffering effect, and dust enters the inside of buffer, damaging the precision components and reducing its reliability and service life. Fourthly, the response speed of hydraulic buffer has certain limitation, and in some high-speed and high-frequency mould opening and closing operations, it cannot provide timely and accurate buffering effect, so there is still the risk of mould crushing, and it cannot fully meet the strict requirements of modern high-efficiency production on mould protection. CONTENT OF THE UTILITY MODEL

[0004] In order to make up for the above shortcomings, the utility model provides a flip ejection mould, which aims at improving the problem of high maintenance cost and complex maintenance when using hydraulic buffer to prevent the upper mould from being crushed in the prior art.

[0005] In order to achieve the above object, the utility model discloses the following technical scheme:

[0006] The inverted ejection mold comprises a top plate and a bottom plate, the top of the bottom plate is provided with a second mold plate, the top of the second mold plate is provided with a third mold plate, the top of the third mold plate is provided with a first side support plate, the top of the third mold plate is provided with a second side support plate, the top of the first side support plate is provided with a water circulation layer plate, the top of the water circulation layer plate is provided with a first mold plate, the top of the first mold plate is provided with the top plate, the first side support plate and the second side support plate are fixedly connected with a first support plate, and the top of the bottom plate is provided with a detection assembly.

[0007] The detection assembly comprises a receiver, the side wall of the receiver is fixedly connected to the side wall of the bottom plate, one side of the receiver is fixedly connected with a connecting line pipe, the outer wall of the connecting line pipe is fixedly connected to the bottom of the second mold plate, one end of the connecting line pipe is fixedly connected with a sensor, the bottom of the second mold plate is provided with a sliding plate, the bottom of the sliding plate is fixedly connected with a sensing point, the bottom of the sensing point is arranged on the top of the sensor, the top of the sliding plate is fixedly connected with a sensing shaft, and the top of the third mold plate is provided with a connecting assembly.

[0008] Further description is made to the above technical scheme:

[0009] The connecting assembly comprises a connecting plate, the bottom of the connecting plate is fixedly connected to the top of the third mold plate, the inside of the third mold plate is provided with an inclined ejector rod, and the outer wall of the inclined ejector rod is arranged on the inner wall of the water circulation layer plate.

[0010] Further description is made to the above technical scheme:

[0011] The inside of the second mold plate is fixedly connected with a hydraulic cylinder, and the output end of the hydraulic cylinder is arranged in the inside of the first support plate.

[0012] Further description is made to the above technical scheme:

[0013] The inside of the second mold plate is fixedly connected with a second limiting column, and the outer wall of the second limiting column is slidably connected in the inside of the second side support plate.

[0014] Further description is made to the above technical scheme:

[0015] The inside of the water circulation layer plate is provided with a first injection mold, the bottom of the top plate is provided with a second injection mold, and the top of the first injection mold is arranged on the bottom of the second injection mold.

[0016] Further description is made to the above technical scheme:

[0017] The first side support plate is internally fixedly connected with a first limiting column, and the outer wall of the first limiting column is slidably connected in the water circulation layer plate;

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

[0019] The third mold plate is internally fixedly connected with a plurality of connecting plates, and each connecting plate is internally provided with a plurality of inclined jacks.

[0020] As a further description of the above technical solution:

[0021] The first injection mold is internally provided with a plurality of inclined jacking blocks, and the bottom of each inclined jacking block is arranged at the top of an inclined jack.

[0022] The utility model has the advantages of:

[0023] In the utility model, when the sensing shaft is pressed, the sliding plate is driven to move, the sensing point at the bottom is driven to abut against the top of the sensor, signals are transmitted to the receiver through the connecting line pipe, the receiver receives the signals to drive the hydraulic cylinder, the effect of preventing the upper mold from being pressed is achieved, the problem that the hydraulic buffer in the prior art has high requirements for the working environment and the buffering effect is reduced when the temperature is low is solved, and the practicability of the inverted ejection mold is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 The utility model provides a three -dimensional schematic view of inverted ejection mold;

[0025] Figure 2 The utility model provides the exploded view of the top plate of inverted ejection mold;

[0026] Figure 3 The utility model provides the exploded view of the second mold plate of inverted ejection mold;

[0027] Figure 4 The utility model provides the top structure schematic view of the second mold plate of inverted ejection mold.

[0028] LEGEND:

[0029] 1, top plate;2, first mold plate;3, water circulation layer plate;4, first side support plate;5, second side support plate;6, second mold plate;7, third mold plate;8, bottom plate;9, receiver;10, sensor;11, first injection mold;12, second injection mold;13, sliding plate;14, sensing point;15, sensing shaft;16, first limiting column;17, connecting plate;18, inclined jack;19, second limiting column;20, hydraulic cylinder;21, connecting line pipe;22, first support plate;23, inclined jacking block. DETAILED DESCRIPTION

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Reference Figures 1-4This utility model provides an embodiment of an inverted ejection mold, comprising a top plate 1 and a bottom plate 8. The top plate 1 can be made of high-quality aluminum alloy, which has advantages such as light weight, high strength, and good thermal conductivity. A second mold plate 6 is provided on the top of the bottom plate 8. The second mold plate 6 can be made of hot work mold steel, which can maintain good strength, toughness, and wear resistance in high-temperature environments, and can withstand the repeated impact and friction of high-temperature plastic melt during injection molding, effectively extending the service life of the mold. A third mold plate 7 is provided on the top of the second mold plate 6. The third mold plate 7 can be made of the same hot work mold steel as the second mold plate 6. A first side support plate 4 and a second side support plate 5 are provided on the top of the third mold plate 7. The first side support plate 4 and the second side support plate 5 can be made of medium carbon steel and subjected to appropriate quenching and tempering. After processing, it has good comprehensive mechanical properties. A water circulation plate 3 is provided on the top of the first side support plate 4. The water circulation plate 3 can be made of stainless steel. Stainless steel has excellent corrosion resistance and can effectively prevent rusting caused by long-term contact with cooling circulating water, thereby ensuring the normal operation of the cooling system and the precision of the mold. A first mold plate 2 is provided on the top of the water circulation plate 3. The first mold plate 2 can be made of hot work mold steel similar to the second mold plate 6 to better adapt to the requirements of injection molding process. A top plate 1 is provided on the top of the first mold plate 2. A first support plate 22 is fixedly connected between the first side support plate 4 and the second side support plate 5. The first support plate 22 can be made of high-strength aluminum alloy to reduce the overall weight of the mold while ensuring sufficient strength. A detection component is provided on the top of the bottom plate 8.The detection assembly includes a receiver 9, which is fixedly connected to the side wall of the base plate 8. The receiver 9 may have an engineering plastic shell, and the interior contains precision electronic components. The engineering plastic provides good insulation and protection. A connecting tube 21 is fixedly connected to one side of the receiver 9. The connecting tube 21 may be made of bend-resistant and aging-resistant rubber to ensure the stability of signal transmission. The outer wall of the connecting tube 21 is fixedly connected to the bottom of the second mold plate 6. A sensor 10 is fixedly connected to one end of the connecting tube 21. A sliding plate 13 is provided at the bottom of the second mold plate 6, and a sensing point 14 is fixedly connected to the bottom of the sliding plate 13. The sensing point 14 may be made of bend-resistant and aging-resistant rubber. The hard alloy material is used to ensure reliability and stability when in contact with the top of the sensor 10. The bottom of the sensing point 14 is located on the top of the sensor 10. The top of the sliding plate 13 is fixedly connected to the sensing shaft 15. The sensing shaft 15 can be made of high-strength alloy steel to ensure that it will not deform or break during force transmission. The top of the third mold plate 7 is provided with a connecting assembly, which includes a connecting plate 17. The bottom of the connecting plate 17 is fixedly connected to the top of the third mold plate 7. The connecting plate 17 can be made of high-strength aluminum alloy to reduce weight while ensuring the stability of the connection. The third mold plate 7 is provided with a slanted push rod 18. The mold can be made of alloy steel with surface nitriding treatment. The nitrided surface has high hardness, strong wear resistance, and a certain degree of corrosion resistance, enabling it to work stably for extended periods in the complex environment inside the mold. The outer wall of the inclined ejector 18 is set on the inner wall of the water circulation plate 3. A hydraulic cylinder 20 is fixedly connected inside the second mold plate 6, with its output end located inside the first support plate 22. A second limiting post 19 is fixedly connected inside the second mold plate 6. The second limiting post 19 can be made of high-hardness alloy steel, and its outer wall is slidably connected inside the second side support plate 5, providing precise guidance and limiting for the opening and closing of the mold. The water circulation plate 3 is equipped with... The mold has a first injection mold 11, a second injection mold 12 at the bottom of the top plate 1, the top of the first injection mold 11 at the bottom of the second injection mold 12, a first limiting post 16 fixedly connected inside the first side support plate 4, the first limiting post 16 being made of the same material as the second limiting post 19, and its outer wall being slidably connected inside the water circulation plate 3, a third mold plate 7 having multiple connecting plates 17 fixedly connected inside, each connecting plate 17 having multiple inclined ejector rods 18 inside, a first injection mold 11 having multiple inclined ejector blocks 23 inside, the bottom of the inclined ejector blocks 23 being at the top of the inclined ejector rods 18, and the inclined ejector blocks 23 being made of high-strength aluminum alloy.

[0032] Specifically, when using the inverted ejection mold, firstly, the top plate 1 and the first mold plate 2 work together to precisely drive the second injection mold 12 to make corresponding displacements. During this process, the second injection mold 12 gradually approaches and eventually presses against the upper surface of the first injection mold 11. The force transmission is stable and orderly during this process. At the same time, after the first injection mold 11 is subjected to force, it will press the ground it contacts into the interior of the water circulation layer 3. The water circulation layer 3 then transmits the pressure to the top of the first side support plate 4. Through ingenious structural design, the first support plate 22 between the first side support plate 4 and the second side support plate 5 undertakes the important task of connecting the connecting plate 17, making the entire mold structure a stable whole. The connecting plate 17 further connects to the inclined ejector rods 18. Some of the inclined ejector rods 18 can slide flexibly inside the first injection mold 11, which provides a basis for the subsequent demolding action. It is worth noting that the tops of four inclined ejector rods 18 are connected to inclined ejector blocks 23. The unique feature of the inclined ejector blocks 23 is that they are connected at an angle when subjected to force, which can... The pressure applied precisely to the top of the product inside the first injection mold 11 is sufficient to cause the bottom sensing shaft 15 to move downwards when the pressure on the inclined ejector block 23 reaches a certain level. The movement of the sensing shaft 15 then causes the bottom sliding plate 13 to shift, and the movement of the sliding plate 13 in turn causes the bottom sensing point 14 to move and fit tightly against the top of the sensor 10. At this point, the sensor 10 receives the signal and quickly transmits it to the receiver 9 through the connecting conduit 21. After receiving the signal, the receiver 9 immediately starts and drives the hydraulic cylinder 20. The output end of the hydraulic cylinder 20 forcefully pushes against the inside of the first support plate 22. In this way, the mold can return to its autonomous position, effectively avoiding damage to the mold due to excessive squeezing or collision during the opening and closing process. At the same time, no other auxiliary mechanisms are set on the top surface of the top plate 1 and the bottom surface of the bottom plate 8, which allows the mold to better meet the operation requirements of the robot in practical applications, greatly improving the automation level and production efficiency of the entire production process, and providing a strong guarantee for the efficient and stable operation of industrial production.

[0033] Working principle: When using the inverted ejection mold, the top plate 1 and the first mold plate 2 are first driven to drive the second injection mold 12. The second injection mold 12 is then pressed against the upper surface of the first injection mold 11. Meanwhile, the force on the first injection mold 11 presses the ground into the interior of the water circulation layer 3. The water circulation layer 3 then presses against the top of the first side support plate 4. A connecting plate 17 is formed by the first support plate 22 between the first side support plate 4 and the second side support plate 5, and the connecting plate 17 connects to the inclined ejector rods 18. A portion of the inclined ejector rods 18 slides inside the first injection mold 11. The tops of four inclined ejector rods 18 are connected to inclined ejector blocks 23, which are inclined when under force. The connection is made so that the top of the product inside the first injection mold 11 is connected. Then, when the pressure of the inclined ejector block 23 is high, the bottom sensing shaft 15 is driven to move downward. The movement of the sensing shaft 15 will drive the bottom sliding plate 13 to move. The movement of the sliding plate 13 will drive the bottom sensing point 14 to stick to the top of the sensor 10. The sensor 10 receives the signal and transmits the signal to the receiver 9 through the connecting pipe 21. After receiving the signal, the receiver 9 drives the hydraulic cylinder 20. The output end of the hydraulic cylinder 20 is pushed against the inside of the first support plate 22, achieving the effect of autonomous return to avoid damaging the mold. At the same time, no other auxiliary mechanisms are provided on the top surface of the top plate 1 and the bottom surface of the bottom plate 8, which can meet the needs of the robot to improve efficiency.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An inverted ejection mold, comprising a top plate (1) and a bottom plate (8), characterized in that: The bottom plate (8) is provided with a second mold plate (6) on top, the second mold plate (6) is provided with a third mold plate (7) on top, the third mold plate (7) is provided with a first side support plate (4) on top, the third mold plate (7) is provided with a second side support plate (5) on top, the first side support plate (4) is provided with a water circulation layer plate (3) on top, the water circulation layer plate (3) is provided with a first mold plate (2) on top, the first mold plate (2) is provided with a top plate (1) on top, the first side support plate (4) and the second side support plate (5) are fixedly connected with a first support plate (22), and the bottom plate (8) is provided with a detection component on top. The detection component includes a receiver (9), the side wall of which is fixedly connected to the side wall of the base plate (8), a connecting tube (21) is fixedly connected to one side of the receiver (9), the outer wall of the connecting tube (21) is fixedly connected to the bottom of the second mold plate (6), a sensor (10) is fixedly connected to one end of the connecting tube (21), a sliding plate (13) is provided at the bottom of the second mold plate (6), a sensing point (14) is fixedly connected to the bottom of the sliding plate (13), the bottom of the sensing point (14) is located at the top of the sensor (10), a sensing shaft (15) is fixedly connected to the top of the sliding plate (13), and a connecting component is provided at the top of the third mold plate (7).

2. The inverted ejection mold according to claim 1, characterized in that: The connecting assembly includes a connecting plate (17), the bottom of which is fixedly connected to the top of the third mold plate (7). The third mold plate (7) is provided with an inclined push rod (18), the outer wall of which is provided on the inner wall of the water circulation layer plate (3).

3. The inverted ejection mold according to claim 1, characterized in that: A hydraulic cylinder (20) is fixedly connected inside the second mold plate (6), and the output end of the hydraulic cylinder (20) is located inside the first support plate (22).

4. The inverted ejection mold according to claim 1, characterized in that: The second mold plate (6) is fixedly connected to a second limiting post (19), and the outer wall of the second limiting post (19) is slidably connected to the inside of the second side support plate (5).

5. The inverted ejection mold according to claim 1, characterized in that: The water circulation plate (3) is provided with a first injection mold (11) inside, and the bottom of the top plate (1) is provided with a second injection mold (12), with the top of the first injection mold (11) located at the bottom of the second injection mold (12).

6. The inverted ejection mold according to claim 1, characterized in that: The first side support plate (4) is fixedly connected to the first limiting post (16), and the outer wall of the first limiting post (16) is slidably connected to the inside of the water circulation plate (3).

7. The inverted ejection mold according to claim 2, characterized in that: The third mold plate (7) is internally fixedly connected to multiple connecting plates (17), and each connecting plate (17) is internally provided with multiple inclined push rods (18).

8. The inverted ejection mold according to claim 5, characterized in that: The first injection mold (11) is provided with a plurality of inclined ejector blocks (23), the bottom of which is located at the top of the inclined ejector rod (18).

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