Injection mold easy to demold

Abstract

The utility model belongs to the technical field of injection molds, and particularly relates to an easy-to-demold injection mold which comprises a lower mold and a molded product, an upper mold is arranged above the lower mold, a first cylinder is arranged at the top of the lower mold, an injection port is formed in the top of the upper mold, a diversion hole is formed in the bottom of the injection port, and a molding groove is formed in the top of the lower mold. A cavity is formed between the inner wall and the outer wall of the lower mold, a cleaning mechanism is arranged on the upper mold, a fixing plate is arranged in the cavity, an ejector rod is arranged at the top of the fixing plate, a connecting rod is arranged on one side of the fixing plate, a second air cylinder is arranged on one side of the lower mold, and moving grooves are formed in the two sides of the lower mold. Through the arrangement of the cleaning mechanism, the cavity, the fixing plate, the ejector rod, the connecting rod, the second air cylinder, the moving groove and the open hole, the structure can further improve the cleaning convenience of the injection port of the injection mold, the injection mold is easy to demold, and the demolding convenience of a molded product of the injection mold can be further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molds, in particular to an easy-to-release injection mold. Background Art

[0002] Injection molds generally refer to injection molding. Injection molding is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, automated operation, a wide variety of colors and patterns, shapes from simple to complex, sizes from large to small, and precise product dimensions. The products are easy to update and can be made into parts with complex shapes. Injection molding is suitable for mass production and molding processing fields such as products with complex shapes. At a certain temperature, the completely molten plastic material is stirred by a screw and injected into the mold cavity in the mold with high pressure. After cooling and solidification, a molded product is obtained.

[0003] The prior art has the following problems:

[0004] 1. During the use of the injection mold in the prior art, material residues are inevitably left at the injection port, so the injection port of the injection mold needs to be cleaned frequently. The cleaning of the injection port of the existing injection mold often requires the staff to clean it with a handheld brush, which is more troublesome. The convenience of cleaning the injection port of the injection mold can be further improved.

[0005] 2. After the injection molding is completed, the molded product of the injection mold in the prior art is easily stuck in the mold cavity, and the molded product is often difficult to demold. The demolding convenience of the molded product of the injection mold can be further improved. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides an easy-to-demold injection mold, which solves the problem that material residues inevitably remain at the injection port of the current injection mold during use, so the injection port of the injection mold needs to be cleaned frequently. The cleaning of the injection port of the existing injection mold often requires staff to hold a brush for cleaning, which is more troublesome. The convenience of cleaning the injection port of the injection mold can be further improved, and the molded product of the injection mold is easily stuck in the mold cavity after the injection molding is completed, and the molded product is often difficult to demold. The convenience of demolding the molded product of the injection mold can be further improved.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an easy-to-demold injection mold, comprising a lower mold and a molded product, an upper mold is arranged above the lower mold, a first cylinder is arranged on the top of the lower mold, an injection port is opened on the top of the upper mold, a diversion hole is opened at the bottom of the injection port, a molding groove is opened on the top of the lower mold, a cavity is opened between the inner wall and the outer wall of the lower mold, a cleaning mechanism is arranged on the upper mold, a fixed plate is arranged in the cavity, a push rod is arranged on the top of the fixed plate, a connecting rod is arranged on one side of the fixed plate, a second cylinder is arranged on one side of the lower mold, movable grooves are opened on both sides of the lower mold, and a plurality of groups of openings are opened at the bottom of the molding groove;

[0008] The cleaning mechanism is specifically composed of an electric telescopic rod, a mounting plate, a bearing, a mini motor, a cleaning block and bristles. The top of the upper mold is provided with an electric telescopic rod, a mounting plate is provided on the electric telescopic rod, a bearing is provided at the bottom of the mounting plate, a mini motor is provided at the top of the mounting plate, a cleaning block is provided at the bottom of the mounting plate, and bristles are provided on one side of the cleaning block.

[0009] As a preferred technical solution of the utility model, four groups of first cylinders are fixedly installed between the upper mold and the lower mold, and the diversion hole runs through the bottom of the upper mold.

[0010] As a preferred technical solution of the utility model, the upper mold is overall in a "convex" shape, the molding groove is adapted to the bottom end of the upper mold, the bottom end of the upper mold is clamped in the molding groove, the fixed plate is placed in the cavity, and connecting rods are fixedly installed on both sides of the fixed plate.

[0011] As a preferred technical solution of the utility model, second cylinders are fixedly installed on both sides of the lower mold, the two groups of movable grooves are respectively adapted to two groups of connecting rods, and one end of the two groups of connecting rods passes through the corresponding movable grooves and is fixedly installed on the telescopic end of the corresponding second cylinder.

[0012] As a preferred technical solution of the utility model, the cavity is located below the forming groove, and several groups of push rods are fixedly installed on the top of the fixed plate and the number of push rods is consistent with the number of openings, several groups of openings are respectively matched with several groups of push rods, and the top ends of several groups of push rods are all located in the corresponding openings.

[0013] As a preferred technical solution of the utility model, the mounting end of the electric telescopic rod is embedded in the top end of the upper mold, the bearing is embedded in the bottom end of the mounting plate, and the telescopic end of the electric telescopic rod extends into and is fixed on the inner ring of the bearing.

[0014] As a preferred technical solution of the utility model, the mini motor is fixedly mounted on the other end of the top of the mounting plate and the telescopic end of the mini motor passes through the mounting plate, the cleaning block is fixedly mounted on the telescopic end of the mini motor, and a plurality of groups of bristles are fixedly mounted on both sides and the bottom of the cleaning block, the injection molding port is adapted to the cleaning block, and there is a card connection between the cleaning block and the injection molding port, and the first cylinder, the second cylinder, and the electric telescopic rod are all electrically connected to the same external controller.

[0015] Compared with the prior art, the utility model provides an easy-to-release injection mold, which has the following beneficial effects:

[0016] 1. This easy-to-demold injection mold is provided with a cleaning mechanism, the mounting plate is rotated so that the cleaning block is located directly above the injection port, the electric telescopic rod is started by the controller so that the cleaning block is located in the injection port, and the mini motor is started by the controller to drive the rotation of the cleaning block, thereby driving the brush bristles to rotate synchronously, and several groups of brush bristles can clean the injection port. Later, the injection mold can be tilted as a whole to pour out the material residue in the injection port to complete the cleaning of the injection port, which is more convenient. This structure can further improve the convenience of cleaning the injection port of the injection mold;

[0017] 2. This easy-to-demold injection mold is provided with a cavity, a fixed plate, a push rod, a connecting rod, a second cylinder, a movable groove, and an opening. Two groups of second cylinders are simultaneously started by a controller to move the fixed plate upward, thereby driving several groups of push rods to move synchronously. The push rods can push the molded product in the molding groove out of the molding groove, which can facilitate the demolding of the molded product. This structure makes the injection mold easy to demold, and can further improve the convenience of demolding the molded product of the injection mold. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall partial cross-sectional structure of the utility model before injection molding;

[0019] Figure 2 This is a schematic diagram of the specific structure of the cleaning mechanism of the utility model;

[0020] Figure 3 It is a schematic diagram of the overall partial cross-sectional structure of the molded product of the utility model after molding;

[0021] Figure 4 It is a three-dimensional schematic diagram of the connecting rod installation structure of the utility model.

[0022] In the figure: 1. lower mold; 2. upper mold; 3. first cylinder; 4. injection port; 5. diverter hole; 6. molding groove; 7. cavity; 8. cleaning mechanism; 801. electric telescopic rod; 802. mounting plate; 803. bearing; 804. mini motor; 805. cleaning block; 806. bristles; 9. fixing plate; 10. ejector rod; 11. connecting rod; 12. second cylinder; 13. movable groove; 14. opening; 15. molded product. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 In the present embodiment: an easy-to-release injection mold comprises a lower mold 1 and a molded product 15. An upper mold 2 is arranged above the lower mold 1, a first cylinder 3 is arranged on the top of the lower mold 1, an injection port 4 is opened on the top of the upper mold 2, the injection port 4 can facilitate the molten plastic material to flow into the molding groove 6, a diverter hole 5 is opened at the bottom of the injection port 4, a molding groove 6 is opened on the top of the lower mold 1, a cavity 7 is opened between the inner wall and the outer wall of the lower mold 1, the cavity 7 can facilitate the movement of the fixed plate 9, a cleaning mechanism 8 is arranged on the upper mold 2, a fixed plate 9 is arranged in the cavity 7, a push rod 10 is arranged on the top of the fixed plate 9, a connecting rod 11 is arranged on one side of the fixed plate 9, a second cylinder 12 is arranged on one side of the lower mold 1, the second cylinder 12 can drive the movement of the connecting rod 11, both sides of the lower mold 1 are opened with movable grooves 13, and a plurality of groups of openings 14 are opened at the bottom of the molding groove 6;

[0025] The cleaning mechanism 8 is specifically composed of an electric telescopic rod 801, a mounting plate 802, a bearing 803, a mini motor 804, a cleaning block 805 and a brush 806. An electric telescopic rod 801 is arranged on the top of the upper mold 2, and the electric telescopic rod 801 can drive the mounting plate 802 to move up and down. A mounting plate 802 is arranged on the electric telescopic rod 801, and the mounting plate 802 can facilitate the installation of the mini motor 804. A bearing 803 is arranged at the bottom of the mounting plate 802, and a mini motor 804 is arranged on the top of the mounting plate 802. The specific model of the mini motor 804 is M10-FF-77D4512-XX, and the mini motor 804 can drive the cleaning block 805 to rotate. A cleaning block 805 is arranged at the bottom of the mounting plate 802, and a brush 806 is arranged on one side of the cleaning block 805. The brush 806 can clean the material residue of the injection port 4.

[0026] In this embodiment, four groups of first cylinders 3 are fixedly installed between the upper mold 2 and the lower mold 1, and the diverter hole 5 runs through the bottom of the upper mold 2. The first cylinder 3 can facilitate the movement of the upper mold 2; the upper mold 2 is in a "convex" shape as a whole, and the molding groove 6 is adapted to the bottom end of the upper mold 2. The bottom end of the upper mold 2 is clamped in the molding groove 6, and the fixed plate 9 is placed in the cavity 7. Connecting rods 11 are fixedly installed on both sides of the fixed plate 9. The connecting rods 11 can facilitate the connection between the fixed plate 9 and the second cylinder 12; The second cylinder 12 is fixedly installed on both sides of the lower mold 1, and the two groups of movable grooves 13 are respectively adapted to the two groups of connecting rods 11. One end of the two groups of connecting rods 11 passes through the corresponding movable grooves 13 and is fixedly installed on the corresponding telescopic ends of the second cylinder 12. The movable grooves 13 can facilitate the movement of the connecting rods 11; the cavity 7 is located below the molding groove 6, and a plurality of groups of ejector rods 10 are fixedly installed on the top of the fixed plate 9, and the number of ejector rods 10 is the same as that of the openings 14, and the plurality of openings 14 are respectively adapted to the plurality of ejector rods 10 is adapted, and the top ends of several groups of ejector rods 10 are all located in the corresponding openings 14, and the openings 14 can facilitate the ejector rods 10 to move into the molding grooves 6; the mounting end of the electric telescopic rod 801 is embedded in the top end of the upper mold 2, and the bearing 803 is embedded in the bottom end of the mounting plate 802. The telescopic end of the electric telescopic rod 801 extends into and is fixed on the inner ring of the bearing 803, and the bearing 803 can facilitate the rotation of the mounting plate 802; the mini motor 804 is fixedly mounted on the top other end of the mounting plate 802 The telescopic end of the mini motor 804 passes through the mounting plate 802, the cleaning block 805 is fixedly mounted on the telescopic end of the mini motor 804, and a plurality of groups of bristles 806 are fixedly mounted on both sides and the bottom of the cleaning block 805. The injection port 4 is adapted to the cleaning block 805, and there is a card connection between the cleaning block 805 and the injection port 4. The first cylinder 3, the second cylinder 12, and the electric telescopic rod 801 are all electrically connected to the same external controller, and the cleaning block 805 can facilitate the installation of the bristles 806.

[0027] The working principle and use process of the utility model: the operator first checks whether the relevant components are installed in the correct position. The first cylinder 3, the second cylinder 12, and the electric telescopic rod 801 only need to achieve the effect of telescopic movement, and there is no restriction on their specific models. The mounting plate 802 is rotated so that the mounting plate 802 is located at one end of the upper mold 2. At this time, the mounting plate 802 will not affect the normal use of the injection port 4. At this time, the bottom end of the upper mold 2 extends into the molding groove 6, and the completely molten plastic material is transported to the molding groove 6 through the injection port 4. After the plastic material is molded in the molding groove 6, the two groups of second cylinders 12 are started simultaneously by the controller to move the fixed plate 9 upward, which can drive several groups of ejector rods 10 to move synchronously. The ejector rods 10 can eject the molded product 15 in the molding groove 6 out of the molding groove 6. The molded product 15 can be easily demoulded. When the injection port 4 needs to be cleaned, the mounting plate 802 is rotated so that the cleaning block 805 is located directly above the injection port 4. The electric telescopic rod 801 is started by the controller to drive the mounting plate 802 to move downward and the cleaning block 805 is located in the injection port 4. The mini motor 804 is started by the controller to drive the cleaning block 805 to rotate, and then the bristles 806 can be driven to rotate synchronously. Several groups of bristles 806 can be used to clean the injection port 4. Later, the injection mold can be tilted as a whole to pour out the material residue in the injection port 4 to complete the cleaning of the injection port 4, which is more convenient. This structure can further improve the convenience of cleaning the injection port 4 of the injection mold, and the injection mold is easy to demould, which can further improve the convenience of demoulding the molded product 15 of the injection mold.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An easy-to-release injection mold, comprising a lower mold (1) and a molded product (15), wherein an upper mold (2) is arranged above the lower mold (1), a first cylinder (3) is arranged at the top of the lower mold (1), an injection port (4) is provided at the top of the upper mold (2), a diversion hole (5) is provided at the bottom of the injection port (4), and a molding groove (6) is provided at the top of the lower mold (1), characterized in that: A cavity (7) is provided between the inner wall and the outer wall of the lower mold (1); a cleaning mechanism (8) is provided on the upper mold (2); a fixing plate (9) is provided in the cavity (7); a push rod (10) is provided on the top of the fixing plate (9); a connecting rod (11) is provided on one side of the fixing plate (9); a second cylinder (12) is provided on one side of the lower mold (1); movable grooves (13) are provided on both sides of the lower mold (1); and a plurality of groups of openings (14) are provided at the bottom of the molding groove (6); The cleaning mechanism (8) is specifically composed of an electric telescopic rod (801), a mounting plate (802), a bearing (803), a mini motor (804), a cleaning block (805) and bristles (806); the electric telescopic rod (801) is arranged on the top of the upper mold (2); the mounting plate (802) is arranged on the electric telescopic rod (801); the bearing (803) is arranged at the bottom of the mounting plate (802); the mini motor (804) is arranged on the top of the mounting plate (802); the cleaning block (805) is arranged at the bottom of the mounting plate (802); and bristles (806) are arranged on one side of the cleaning block (805).

2. The easy-to-release injection mold according to claim 1, characterized in that: Four groups of first cylinders (3) are fixedly installed between the upper mold (2) and the lower mold (1), and the diversion hole (5) runs through the bottom of the upper mold (2).

3. The easy-to-release injection mold according to claim 1, characterized in that: The upper mold (2) is in a "convex" shape as a whole, the molding groove (6) is adapted to the bottom end of the upper mold (2), the bottom end of the upper mold (2) is clamped in the molding groove (6), the fixing plate (9) is placed in the cavity (7), and connecting rods (11) are fixedly installed on both sides of the fixing plate (9).

4. The easy-to-release injection mold according to claim 1, characterized in that: The second cylinder (12) is fixedly mounted on both sides of the lower mold (1), and the two groups of movable grooves (13) are respectively matched with the two groups of connecting rods (11), and one end of the two groups of connecting rods (11) passes through the corresponding movable grooves (13) and is fixedly mounted on the telescopic end of the corresponding second cylinder (12).

5. The easy-to-release injection mold according to claim 1, characterized in that: The cavity (7) is located below the forming groove (6); a plurality of groups of push rods (10) are fixedly installed on the top of the fixing plate (9); the number of the push rods (10) is consistent with the number of openings (14); the plurality of groups of openings (14) are respectively matched with the plurality of groups of push rods (10); and the top ends of the plurality of groups of push rods (10) are all located in the corresponding openings (14).

6. The easy-to-release injection mold according to claim 1, characterized in that: The mounting end of the electric telescopic rod (801) is embedded in the top end of the upper mold (2), the bearing (803) is embedded in the bottom end of the mounting plate (802), and the telescopic end of the electric telescopic rod (801) extends into and is fixed on the inner ring of the bearing (803).

7. The easy-to-release injection mold according to claim 1, characterized in that: The mini motor (804) is fixedly mounted on the other end of the top of the mounting plate (802) and the telescopic end of the mini motor (804) passes through the mounting plate (802); the cleaning block (805) is fixedly mounted on the telescopic end of the mini motor (804); a plurality of groups of bristles (806) are fixedly mounted on both sides and the bottom of the cleaning block (805); the injection port (4) is adapted to the cleaning block (805); there is a snap connection between the cleaning block (805) and the injection port (4); and the first cylinder (3), the second cylinder (12), and the electric telescopic rod (801) are all electrically connected to the same external controller.

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