Injection mold easy to discharge

Abstract

The utility model relates to the technical field of injection molds, and discloses an easy-to-discharge injection mold, which comprises an upper mold base and a lower mold base, the upper mold base and the lower mold base are connected through a telescopic guide rod, a male mold is fixedly mounted at the bottom of the upper mold base, a forming bulge is mounted at the bottom of the male mold, a female mold is fixedly mounted at the top of the lower mold base, and the upper mold base and the lower mold base are connected through a telescopic guide rod. A forming cavity is formed in the female die, a male die discharging component is arranged on the male die, high-pressure air flow is introduced into a first material distributing pipe from a first air inlet pipe, the high-pressure air flow enters a sealing cavity from the first material distributing pipe, at the moment, part of the air flow pushes an air knife head, the bottom end of the air knife head is pushed out of the sealing cavity, and then the air knife head is discharged. And the other part of the air flow enters the air knife head from the air inlet hole and then is blown to the edge of the forming bulge from the air knife edge, and the air flow is blown in from a gap between the edge of the forming bulge and the plastic product, so that the plastic product can be cooled and also can be blown off, and the plastic product can be better taken down by a worker.

Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, concretely is an injection mold easy to unload. BACKGROUND

[0002] Injection molding is a kind of processing technology widely used in modern manufacturing industry, by molten plastic injection into mould cavity, after cooling solidification, get plastic product.However, in the unloading link of injection production, i.e.the process of plastic product forming from the mold, the traditional injection mold has many problems, the injection mold commonly used at present adopts simple ejection mechanism, such as ejector pin board drives ejector pin to eject plastic product from the cavity, but when plastic product is adsorbed on male die, the ejection mechanism arranged in female die cannot work normally, and workers need to manually take down plastic product, on the one hand, it is inconvenient to take, on the other hand, plastic product is high in temperature at this time, and it is easy to scald workers. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing an injection mold easy to unload to solve the problems in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme: an injection mold easy to unload, including upper die holder, lower die holder, the upper die holder, lower die holder are connected through telescopic guide rod, the upper die holder bottom fixed installation has male die, the bottom of male die is installed with forming protrusion, the top of lower die holder is fixedly installed with female die, the female die is opened with forming cavity, the male die is provided with male die unloading component, the female die is provided with female die unloading component in the lower die holder;

[0005] The male die unloading component includes sealing cavity, air inlet pipe one, the sealing cavity is opened in male die, and the inside of sealing cavity is slidably provided with air knife head, the top of air knife head is opened with air inlet hole, the side of air knife head is opened with air knife mouth, the air knife mouth is close to the bottom of air knife head, the top inner wall of sealing cavity is fixedly installed with slide rod, the bottom end of slide rod is movably penetrated through the top of air knife head, the top of air knife head is fixedly installed with spring one, the top end of spring one is fixedly connected with the top inner wall of sealing cavity, one end of air inlet pipe one is communicated with high pressure gas circuit, the outer wall of air inlet pipe one is communicated with the setting of branch pipe one, branch pipe one is communicated with the inside of sealing cavity, and the communication place of branch pipe one and sealing cavity is above air knife head.

[0006] Further, the male die unloading component is provided with four, and is located at four directions of forming protrusion respectively.

[0007] Further, the bottom of slide rod is fixedly installed with limiting sheet, and the diameter of limiting sheet is greater than the diameter of slide rod.

[0008] Further, the female mold blanking component comprises an air inlet bin and an air inlet pipe two, the air inlet bin is arranged in the lower die base, an installation plate is slidably arranged in the air inlet bin, a top rod is fixedly installed on the top of the installation plate, the top rod movably penetrates the inner wall of the air inlet bin and extends into the forming cavity, a spring two is fixedly installed on the top of the installation plate, the top end of the spring two is fixedly connected with the top inner wall of the air inlet bin, one end of the air inlet pipe two is communicated with the high-pressure gas path, a shunt pipe two is communicated on the outer wall of the air inlet pipe two, the shunt pipe two is communicated with the inside of the air inlet bin, and the communication position of the shunt pipe two and the air inlet bin is below the installation plate.

[0009] Further, the top end of the top rod on the top of the installation plate is provided with five, and is respectively located at the top center and the four corners of the top of the installation plate.

[0010] Further, the bottom inner wall of the air inlet bin is fixedly installed with a dismounting plate through screws, a limiting rod is fixedly installed on the top of the dismounting plate, and the top end of the limiting rod is in contact with the bottom of the installation plate.

[0011] Compared with the prior art, the utility model has the advantages that:

[0012] 1. high-pressure gas flow is introduced into the shunt pipe one from the air inlet pipe one, the high-pressure gas flow enters the sealing cavity from the shunt pipe one, at this time, part of the gas flow pushes the air knife head, the bottom end of the air knife head is pushed out of the sealing cavity, another part of the gas flow enters the air knife head from the air inlet hole, and then is blown to the edge of the forming protrusion from the air knife opening, the gas flow is blown into the gap between the forming protrusion edge and the plastic product, so that the plastic product can be better taken down.

[0013] 2. high-pressure gas is introduced into the shunt pipe two from the air inlet pipe two, the high-pressure gas flow enters the air inlet bin from the shunt pipe two, the gas flow pushes the installation plate to move upwards, and then pushes the top rod to move upwards, and the top rod moves upwards and pushes the plastic product out of the forming cavity. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is a structural schematic view of the upper die base and the bottom view of the male die of the utility model;

[0016] Figure 3 It is a structural schematic view of the top section view of the male die of the utility model;

[0017] Figure 4 It is a structural schematic view of the air knife head of the utility model;

[0018] Figure 5The utility model discloses a lower die base and female die vertical section view's structure schematic drawing.

[0019] In the figure: 1, upper die base, 2, lower die base, 3, male die, 4, female die, 5, forming protrusion, 6, forming cavity, 7, telescopic guide rod, 8, male die blanking component, 801, sealing cavity, 802, air inlet pipe one, 803, distribution pipe one, 804, air knife head, 805, air inlet hole, 806, sliding rod, 807, spring one, 808, air knife mouth, 9, female die blanking component, 901, air inlet bin, 902, air inlet pipe two, 903, distribution pipe two, 904, mounting plate, 905, ejector rod, 906, spring two, 10, limit sheet, 11, dismounting plate, 12, limit rod. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0021] Please refer to Figures 1-5 The utility model provides a kind of injection mould of easy blanking, including upper die base 1, lower die base 2, upper die base 1, lower die base 2 are connected by telescopic guide rod 7, and upper die base 1 bottom is fixedly installed with male die 3, and the bottom of male die 3 is installed with forming protrusion 5, and the top of lower die base 2 is fixedly installed with female die 4, and female die 4 is set with forming cavity 6, and male die 3 is provided with male die blanking component 8, and lower die base 2 is provided with female die blanking component 9 in it;

[0022] The public mold blanking part 8 includes a sealed cavity 801, and an air inlet pipe 802. The sealed cavity 801 is arranged in the public mold 3, and a wind knife head 804 is slidably arranged in the sealed cavity 801. An air inlet hole 805 is arranged at the top of the wind knife head 804, and a wind knife opening 808 is arranged on the side of the wind knife head 804, close to the bottom of the wind knife head 804. A sliding rod 806 is fixedly installed on the top inner wall of the sealed cavity 801, and the bottom end of the sliding rod 806 penetrates the top of the wind knife head 804. A spring 807 is fixedly installed on the top of the wind knife head 804, and the top end of the spring 807 is fixedly connected with the top inner wall of the sealed cavity 801. One end of the air inlet pipe 802 is in communication with the high-pressure gas path, and a distribution pipe 803 is arranged on the outer wall of the air inlet pipe 802 in communication. The distribution pipe 803 is in communication with the inside of the sealed cavity 801, and the communication part of the distribution pipe 803 and the sealed cavity 801 is above the wind knife head 804. When the plastic product is adsorbed on the forming protrusion 5 after molding, the high-pressure gas flow is introduced from the air inlet pipe 802 into the distribution pipe 803, and the high-pressure gas flow enters the sealed cavity 801 from the distribution pipe 803. At this time, part of the gas flow pushes the wind knife head 804, and the bottom end of the wind knife head 804 is pushed out of the sealed cavity 801. Another part of the gas flow enters the wind knife head 804 from the air inlet hole 805, and then blows towards the edge of the forming protrusion 5 from the wind knife opening 808. The gas flow blows into the gap between the edge of the forming protrusion 5 and the plastic product, which can cool the plastic product and blow the plastic product away, so that the plastic product can be better taken down by the worker. The sliding rod 806 is arranged for guiding the wind knife head 804, and the spring 807 is arranged for pulling the wind knife head 804. After the high-pressure gas flow does not enter the sealed cavity 801, the spring 807 pulls the wind knife head 804 to move upwards, so that the wind knife head 804 retracts into the sealed cavity 801, thereby avoiding the injection material from entering the wind knife head 804 from the wind knife opening 808 during the molding process;

[0023] The public mold blanking part 8 is arranged in four directions of the forming protrusion 5, that is, the high-pressure gas flow blows into the gap between the edge of the forming protrusion 5 and the plastic product from four directions, which can better blow the plastic product away from the forming protrusion 5;

[0024] The bottom of the sliding rod 806 is fixedly installed with a limiting piece 10, and the diameter of the limiting piece 10 is greater than the diameter of the sliding rod 806. The limiting piece 10 is arranged to limit the maximum distance of the downward movement of the wind knife head 804, so as to avoid the wind knife head 804 from being completely separated from the sealed cavity 801;

[0025] The female mold blanking part 9 comprises an air inlet bin 901 and an air inlet pipe two 902. The air inlet bin 901 is arranged in the lower mold base 2. An installation plate 904 is slidably arranged in the air inlet bin 901. A top of the installation plate 904 is fixedly provided with a top rod 905. The top rod 905 is movably penetrated through the inner wall of the air inlet bin 901 and extends into the forming cavity 6. A top of the installation plate 904 is fixedly provided with a spring two 906. A top end of the spring two 906 is fixedly connected with the top inner wall of the air inlet bin 901. One end of the air inlet pipe two 902 is in communication with the high-pressure gas path. A shunt pipe two 903 is in communication with the outer wall of the air inlet pipe two 902. The shunt pipe two 903 is in communication with the inside of the air inlet bin 901. The communication position of the shunt pipe two 903 with the air inlet bin 901 is below the installation plate 904. When it is needed to take out the plastic product in the forming cavity 6, high-pressure gas is introduced into the shunt pipe two 903 from the air inlet pipe two 902. The high-pressure gas flow enters the air inlet bin 901 from the shunt pipe two 903. The gas flow pushes the installation plate 904 to move upwards, and in turn pushes the top rod 905 to move upwards. The top rod 905 moves upwards to push the plastic product out of the forming cavity 6. The spring two 906 is arranged to push the installation plate 904 to move downwards, i.e., when the high-pressure gas does not enter the air inlet bin 901, the spring two 906 pushes the installation plate 904 to move downwards, so that the top rod 905 moves away from the forming cavity 6.

[0026] Five top rods 905 are arranged at the top end of the top of the installation plate 904 and are respectively located at the four corners of the top of the installation plate 904 and the center of the top of the installation plate 904. When the plastic product in the forming cavity 6 is lifted, the five top rods 905 can increase the stress area of the plastic product, and in turn avoid the deformation of the plastic product under stress.

[0027] A dismounting plate 11 is fixedly arranged at the bottom inner wall of the air inlet bin 901 by screws. A limiting rod 12 is fixedly arranged at the top of the dismounting plate 11. A top end of the limiting rod 12 is in contact with the bottom of the installation plate 904. The dismounting plate 11 is arranged to mount the limiting rod 12. The limiting rod 12 is arranged to limit the maximum downward movement distance of the installation plate 904. When the installation plate 904 is in contact with the limiting rod 12, the top of the top rod 905 is flush with the bottom inner wall of the forming cavity 6.

[0028] Working principle: when using, after the injection molding is completed, the upper die seat 1 moves upwards to drive the male die 3 to move upwards, and then drive the molding convex 5 to move upwards, if the plastic product is adsorbed on the molding convex 5, then the high-pressure airflow is introduced into the distribution pipe 1 803 from the air inlet pipe 1 802, the high-pressure airflow enters the sealing cavity 801 from the distribution pipe 1 803, at this time, a part of the airflow pushes the air knife head 804, and the bottom end of the air knife head 804 is pushed out from the sealing cavity 801, another part of the airflow enters the air knife head 804 from the air inlet hole 805, and then blows to the edge of the molding convex 5 from the air knife 808, and the airflow blows into the gap between the edge of the molding convex 5 and the plastic product, which can cool the plastic product and blow off the plastic product, so that the plastic product can be better taken off by the worker, if the plastic product is in the molding cavity 6, then the high-pressure gas is introduced into the distribution pipe 2 903 from the air inlet pipe 2 902, the high-pressure airflow enters the air inlet bin 901 from the distribution pipe 2 903, the airflow pushes the mounting plate 904 to move upwards, and then pushes the ejector rod 905 to move upwards, and the ejector rod 905 moves upwards to eject the plastic product from the molding cavity 6.

[0029] Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

Claims

1. An injection mold easy to unblock, comprising an upper mold base (1), a lower mold base (2), characterized in that: The upper die holder (1), the lower die holder (2) are connected through telescopic guide rod (7), the upper die holder (1) bottom fixed installation has male die (3), the male die (3) bottom is installed with forming convex (5), the lower die holder (2) top fixed installation has female die (4), the female die (4) is opened with forming cavity (6), the male die (3) is provided with male die blanking component (8), the lower die holder (2) is provided with female die blanking component (9) in. The male die blanking component (8) includes a sealing cavity (801), an air inlet pipe (802), the sealing cavity (801) is opened in the male die (3), and the inside of the sealing cavity (801) is slidably provided with a wind knife head (804), the top of the wind knife head (804) is provided with an air inlet hole (805), the side of the wind knife head (804) is provided with a wind knife opening (808), the wind knife opening (808) is close to the bottom of the wind knife head (804), the top inner wall of the sealing cavity (801) is fixedly installed with a sliding rod (806), the bottom end of the sliding rod (806) is movably penetrated through the top of the wind knife head (804), the top of the wind knife head (804) is fixedly installed with a spring (807), the top end of the spring (807) is fixedly connected with the top inner wall of the sealing cavity (801), one end of the air inlet pipe (802) is in communication with the high pressure gas circuit, the outer wall of the air inlet pipe (802) is provided with a distribution pipe (803) in communication, the distribution pipe (803) is in communication with the inside of the sealing cavity (801), and the distribution pipe (803) is above the wind knife head (804) in communication with the sealing cavity (801).

2. An injection mold facilitating ejection of a molded article as set forth in claim 1, wherein: The male die blanking component (8) is provided with four, and is located in four directions of forming convex (5) respectively.

3. An injection mold facilitating ejection of a molded article as defined in claim 1, wherein: The bottom of the sliding rod (806) is fixedly installed with a limiting sheet (10), and the diameter of the limiting sheet (10) is greater than the diameter of the sliding rod (806).

4. An injection mold facilitating ejection according to claim 1, characterized in that: The female die blanking component (9) includes an air inlet bin (901) and an air inlet pipe (902), the air inlet bin (901) is opened in the lower die holder (2), the inside of the air inlet bin (901) is slidably provided with a mounting plate (904), the top of the mounting plate (904) is fixedly installed with a top rod (905), the top rod (905) is movably penetrated through the inner wall of the air inlet bin (901), and the top rod (905) extends into the forming cavity (6), the top of the mounting plate (904) is fixedly installed with a spring (906), the top end of the spring (906) is fixedly connected with the top inner wall of the air inlet bin (901), one end of the air inlet pipe (902) is in communication with the high pressure gas circuit, the outer wall of the air inlet pipe (902) is provided with a shunt pipe (903) in communication, the shunt pipe (903) is in communication with the inside of the air inlet bin (901), and the shunt pipe (903) is below the mounting plate (904) in communication with the air inlet bin (901).

5. An injection mold facilitating ejection of a molded article as defined in claim 4, wherein: The top end of the top rod (905) on the top of the mounting plate (904) is provided with five, and is located at the top center and the top four corners of the mounting plate (904) respectively.

6. An injection mold facilitating ejection of a molded article as defined in claim 4, wherein: The bottom inner wall of the air inlet bin (901) is fixedly installed with a dismounting plate (11) through screws, the top of the dismounting plate (11) is fixedly installed with a limiting rod (12), and the top end of the limiting rod (12) is in contact with the bottom of the mounting plate (904).

Images