Air exhausting device of mold for APG pressure injection and using method of air exhausting device

Abstract

The invention discloses a mold exhaust device for APG pressure injection and a using method of the mold exhaust device, and relates to the technical field of casting modeling. A mold exhaust device for APG pressure injection comprises a fixed air cylinder plate, a limiting device is arranged on the fixed air cylinder plate and comprises an air cylinder, an installation base and a sliding base, the upper surface of the installation base is fixedly connected with the lower surface of the fixed air cylinder plate, the upper surface of the air cylinder is fixedly connected with the lower surface of the sliding base, and a sliding base groove is formed in the lower surface of the installation base. The outer wall of the sliding seat is slidably connected with the interior of the sliding seat groove, first limiting grooves are formed in the outer walls of the two sides of the sliding seat, and after the sliding seat in the limiting device loses the first limiting blocks on the sliding blocks for limiting the sliding seat, the air cylinder and the sliding seat can be taken down from the mounting seat by pulling the air cylinder, so that the air cylinder is convenient to disassemble, meanwhile, operation is simple and rapid, and practicability is high. And the practicability and effectiveness of the equipment are improved while the workload of workers is effectively reduced.

Description

Technical Field

[0001] The invention relates to the technical field of casting modeling, and in particular to an exhaust device for an APG injection mold and a use method thereof. Background Art

[0002] The APG injection mold exhaust device is a structure designed to quickly and effectively exhaust the gas (such as air, plastic volatile gas, etc.) generated in the mold cavity during the APG injection process. Its function is to prevent the gas from being trapped inside the mold, thereby avoiding defects such as incomplete mold, uneven filling, bubbles, carbonization and burning of the product, and ensuring the appearance and internal quality of the product.

[0003] In the existing APG injection process, plastic releases gas during heating and melting, and the flow and compression of plastic during the injection molding process also promotes the movement of gas. However, when the cylinder needs to be maintained and repaired after long-term use, the staff needs to use special tools and have certain professional skills to disassemble it. This operation is complicated and difficult, which increases the workload of the staff and reduces the maintenance and repair efficiency of the cylinder. Summary of the invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art, and to provide an APG injection mold exhaust device and a method of using the same, which can solve the problem that when the cylinder needs to be maintained and repaired after long-term use, the staff needs to use special tools and have certain professional skills to disassemble it, which is complicated and difficult to operate, thereby increasing the workload of the staff and reducing the maintenance and repair efficiency of the cylinder.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: an exhaust device for an APG injection mold, comprising a fixed cylinder plate, on which a limiting device is provided;

[0006] The limiting device comprises a cylinder, a mounting seat and a sliding seat, the upper surface of the mounting seat is fixedly connected to the lower surface of the fixed cylinder plate, the upper surface of the cylinder is fixedly connected to the lower surface of the sliding seat, the lower surface of the mounting seat is provided with a sliding seat groove, the outer wall of the sliding seat is slidably connected to the inside of the sliding seat groove, the outer walls on both sides of the sliding seat are provided with a first limiting groove, and the outer walls on both sides of the mounting seat are provided with a sliding block groove;

[0007] Among them, the interiors of the two sliding block grooves are slidably connected with sliding blocks, the outer walls of the two sliding blocks at one end close to the mounting seat are fixedly connected with the first limit blocks, the outer walls on both sides of the mounting seat are provided with two push block grooves, the interiors of the four push block grooves are slidably connected with push blocks, the interiors of the four push block grooves are provided with second limit block grooves, the interiors of the four push block grooves are provided with two return springs, the interiors of the four second limit block grooves are slidably connected with second limit blocks, and the outer walls on both sides of the two sliding blocks are provided with second limit grooves.

[0008] Preferably, the outer walls of the two first limit blocks are respectively slidably connected to the inside of the corresponding sliding seat;

[0009] The interiors of the four second limiting block grooves are respectively communicated with the interiors of the corresponding sliding block grooves.

[0010] Preferably, the outer walls of one end of the four second limiting blocks close to the second limiting grooves are respectively in contact with the inner walls of the corresponding second limiting grooves;

[0011] Among them, one end of the four push blocks close to the second limit block is fixedly connected to the corresponding upper surface of the second limit block, and the two ends of the eight return springs are fixedly connected to the corresponding inner wall of the push block groove and the outer wall of the push block.

[0012] Preferably, a pressure plate is provided below the fixed cylinder plate;

[0013] Wherein, a plurality of second through holes are formed on the upper surface of the pressing plate.

[0014] Preferably, the lower end of the cylinder is mounted on the upper surface of the pressure plate;

[0015] Wherein, a plurality of first through holes are opened on the upper surface of the fixed cylinder plate.

[0016] Preferably, four fixing columns are fixedly connected to the upper surface of the pressing plate;

[0017] Among them, four fixing columns are fixedly connected at four corners of the pressing plate respectively.

[0018] A method for using an APG injection mold, characterized in that it includes the following steps:

[0019] S1: First, install the equipment at the designated position through the second through hole on the pressing plate and the first through hole on the fixed cylinder plate, then start the equipment, and continuously fill the plastic melt through the equipment. During the injection molding process, the plastic melt is injected into the mold cavity, and the gas is squeezed and pushed to the end or dead corner area of ​​the mold, forming gas accumulation;

[0020] S2: The mold completes the mold closing action to ensure the mold sealing and prepare for the injection molding process;

[0021] S3: Start the exhaust device mold design, start it in the form of exhaust groove through mechanical structure;

[0022] S3: As the plastic melt is continuously filled, the gas inside the mold is gradually discharged. For molds using a vacuum system, the vacuum valve will open the suction valve at the beginning of injection molding to further accelerate the discharge of gas;

[0023] S4: After the plastic melt completely fills the mold cavity and cools and solidifies, the injection molding process ends, and then the exhaust device is closed and the exhaust action stops;

[0024] S5: After the injection molding is completed, the mold is opened to take out the molded product. Then, when the cylinder needs to be disassembled, the push block is pushed to move in the opposite direction to drive the second limit block to move in the opposite direction while making the other end of the push block disengage from the inside of the second limit groove. Then, the handle on the sliding block can be pulled to remove the sliding block from the mounting seat. After the sliding seat loses the limit of the first limit block on the sliding block, the cylinder and the sliding seat can be removed from the mounting seat by pulling the cylinder, which is convenient for disassembling the cylinder.

[0025] Compared with the prior art, the present invention has the following beneficial effects:

[0026] 1. The exhaust device for the APG injection mold can limit the sliding seat in the limiting device by losing the first limiting block on the sliding block. Then, the cylinder and the sliding seat can be removed from the mounting seat by pulling the cylinder. This makes it easy to disassemble the cylinder and the operation is simple and quick, which effectively reduces the workload of the staff and improves the practicality and effectiveness of the equipment.

[0027] 2. The APG injection mold exhaust device drives the second limit block to move in the opposite direction by pushing the push block, while making the other end of the push block disengage from the inside of the second limit groove. Then, the handle on the sliding block is pulled to remove the sliding block from the mounting seat. This makes it easy to remove the sliding block, effectively improves the efficiency of disassembly and replacement of the sliding block, and at the same time improves the flexibility of the equipment, thereby improving the work efficiency of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0030] Figure 2 It is a structural schematic diagram of the plan view of the pressing plate of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the outer part of the cylinder of the present invention;

[0032] Figure 4It is a schematic diagram of the structure of the exterior of the sliding seat of the present invention;

[0033] Figure 5 It is a schematic diagram of the structure of the outer portion of the sliding block of the present invention.

[0034] Figure numerals: 1, pressure plate; 2, fixed column; 3, fixed cylinder plate; 4, cylinder; 5, first through hole; 6, second through hole; 7, first limiting groove; 8, return spring; 9, push block; 10, sliding block; 11, sliding block groove; 12, sliding seat groove; 13, mounting seat; 14, first limiting block; 15, push block groove; 16, second limiting block; 17, sliding seat; 18, second limiting groove; 19, second limiting block groove. DETAILED DESCRIPTION

[0035] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0036] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0037] In the description of the present invention, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0038] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0039] See also Figure 1-5 , the present invention provides a technical solution: an exhaust device for an APG injection mold and a method of using the same, comprising a fixed cylinder plate 3;

[0040] A limiting device is provided on the fixed cylinder plate 3;

[0041] The limiting device includes a cylinder 4, a mounting seat 13 and a sliding seat 17. The upper surface of the mounting seat 13 is fixedly connected to the lower surface of the fixed cylinder plate 3, the upper surface of the cylinder 4 is fixedly connected to the lower surface of the sliding seat 17, the lower surface of the mounting seat 13 is provided with a sliding seat groove 12, the outer wall of the sliding seat 17 is slidably connected to the inside of the sliding seat groove 12, the outer walls on both sides of the sliding seat 17 are provided with first limiting grooves 7, the outer walls on both sides of the mounting seat 13 are provided with sliding block grooves 11, the insides of the two sliding block grooves 11 are slidably connected with sliding blocks 10, the outer walls of one end of the two sliding blocks 10 close to the mounting seat 13 are fixedly connected with first limiting blocks 14, the outer walls of the two first limiting blocks 14 are respectively slidably connected to the inside of the corresponding sliding seat 17, and the outer walls on both sides of the mounting seat 13 are provided with two push block grooves 15. The four push block grooves 15 are all slidably connected to the inside of the push blocks 9, the four push block grooves 15 are all provided with second limit block grooves 19, the interiors of the four second limit block grooves 19 are respectively communicated with the interiors of the corresponding sliding block grooves 11, the four push block grooves 15 are each provided with two return springs 8, the four second limit block grooves 19 are all slidably connected to the inside of the second limit blocks 16, the outer walls on both sides of the two sliding blocks 10 are provided with second limit grooves 18, the outer walls of one end of the four second limit blocks 16 close to the second limit grooves 18 are respectively in contact with the inner walls of the corresponding second limit grooves 18, the ends of the four push blocks 9 close to the second limit blocks 16 are respectively fixedly connected to the upper surfaces of the corresponding second limit blocks 16, and the two ends of the eight return springs 8 are respectively fixedly connected to the corresponding inner walls of the push block grooves 15 and the outer walls of the push blocks 9.

[0042] Among them, a pressing plate 1 is arranged below the fixed cylinder plate 3, a plurality of second through holes 6 are opened on the upper surface of the pressing plate 1, the lower end of the cylinder 4 is installed on the upper surface of the pressing plate 1, a plurality of first through holes 5 are opened on the upper surface of the fixed cylinder plate 3, and four fixing columns 2 are fixedly connected to the upper surface of the pressing plate 1, and the four fixing columns 2 are fixedly connected at the four corners of the pressing plate 1 respectively.

[0043] S1: First, the device is installed at the designated position through the second through hole 6 on the pressing plate 1 and the first through hole 5 on the fixed cylinder plate 3, and then the device is started to continuously fill the plastic melt through the device. During the injection molding process, the plastic melt is injected into the mold cavity, and the gas is squeezed and pushed to the end or dead corner area of ​​the mold to form gas accumulation;

[0044] S2: The mold completes the mold closing action to ensure the mold sealing and prepare for the injection molding process;

[0045] S3: Start the exhaust device mold design, start it in the form of exhaust groove through mechanical structure;

[0046] S3: As the plastic melt is continuously filled, the gas inside the mold is gradually discharged. For molds using a vacuum system, the vacuum valve will open the suction valve at the beginning of injection molding to further accelerate the discharge of gas;

[0047] S4: After the plastic melt completely fills the mold cavity and cools and solidifies, the injection molding process ends, and then the exhaust device is closed and the exhaust action stops;

[0048] S5: After the injection molding is completed, the mold is opened to take out the molded product. Then, when the cylinder 4 needs to be disassembled, the push block 9 is pushed to move in the opposite direction to drive the second limit block 16 to move in the opposite direction while making the other end of it disengage from the inside of the second limit groove 18. Then, the handle on the sliding block 10 can be pulled to remove the sliding block 10 from the mounting seat 13. After the sliding seat 17 loses the limit of the first limit block 14 on the sliding block 10, the cylinder 4 can be pulled to remove the cylinder 4 and the sliding seat 17 from the mounting seat 13, which is convenient for disassembling the cylinder 4.

[0049] Furthermore, when using the device, it is started by connecting an external power supply. First, the device is installed at the specified position through the second through hole 6 on the pressure plate 1 and the first through hole 5 on the fixed cylinder plate 3. Then, the device is started. The gas inside the mold is gradually discharged by the continuous filling of the plastic melt by the device. Then, when the cylinder 4 needs to be removed, the push block 9 is pushed to move in the opposite direction to drive the second limit block 16 to move in the opposite direction so that the other end of the push block 9 is out of contact with the inside of the second limit groove 18. Then, the handle on the sliding block 10 is pulled to remove the sliding block 10 from the mounting seat 13. After the sliding seat 17 loses the first limit block 14 on the sliding block 10 to limit it, the cylinder 4 can be pulled to remove the cylinder 4 and the sliding seat 17 from the mounting seat 13, which facilitates the removal of the cylinder 4.

[0050] After the sliding seat 17 in the limiting device loses the first limiting block 14 on the sliding block 10 to limit its position, the cylinder 4 and the sliding seat 17 can be removed from the mounting seat 13 by pulling the cylinder 4. This makes it easy to disassemble the cylinder 4, and the operation is simple and quick, which effectively reduces the workload of the staff and improves the practicality and effectiveness of the equipment. By pushing the push block 9 to move in the opposite direction, the second limiting block 16 is driven to move in the opposite direction, and the other end of the push block 9 is disengaged from the inside of the second limiting groove 18. Then, the handle on the sliding block 10 is pulled to remove the sliding block 10 from the mounting seat 13. This makes it easy to remove the sliding block 10, effectively improves the disassembly and replacement efficiency of the sliding block 10, and at the same time improves the flexibility of the equipment, thereby improving the work efficiency of the staff.

[0051] Working principle: first, install the equipment at the designated position through the second through hole 6 on the pressing plate 1 and the first through hole 5 on the fixed cylinder plate 3, then start the equipment, and gradually discharge the gas inside the mold by continuously filling the plastic melt with the equipment. Then, when the cylinder 4 needs to be removed, push the push block 9 to move in the opposite direction to drive the second limit block 16 to move in the opposite direction while making the other end of it disengage from the inside of the second limit groove 18. Then, pull the handle on the sliding block 10 to remove the sliding block 10 from the mounting seat 13. After the sliding seat 17 loses the first limit block 14 on the sliding block 10 to limit it, pull the cylinder 4 to remove the cylinder 4 and the sliding seat 17 from the mounting seat 13, so that it is easy to disassemble the cylinder 4.

[0052] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. An exhaust device for an APG injection mold, comprising a fixed cylinder plate (3), characterized in that: A limiting device is provided on the fixed cylinder plate (3); The limiting device comprises a cylinder (4), a mounting seat (13) and a sliding seat (17); the upper surface of the mounting seat (13) is fixedly connected to the lower surface of the fixed cylinder plate (3); the upper surface of the cylinder (4) is fixedly connected to the lower surface of the sliding seat (17); the lower surface of the mounting seat (13) is provided with a sliding seat groove (12); the outer wall of the sliding seat (17) is slidably connected to the inside of the sliding seat groove (12); the outer walls on both sides of the sliding seat (17) are provided with first limiting grooves (7); and the outer walls on both sides of the mounting seat (13) are provided with sliding block grooves (11); The two sliding block grooves (11) are slidably connected to the inside of the sliding block grooves (11); the outer walls of one end of the two sliding blocks (10) close to the mounting seat (13) are fixedly connected to the first limit block (14); the outer walls on both sides of the mounting seat (13) are provided with two push block grooves (15); the push blocks (9) are slidably connected to the inside of the four push block grooves (15); the second limit block grooves (19) are provided in the inside of the four push block grooves (15); two return springs (8) are provided in the inside of the four push block grooves (15); the second limit blocks (16) are slidably connected to the inside of the four second limit block grooves (19); and the outer walls on both sides of the two sliding blocks (10) are provided with second limit grooves (18).

2. The APG injection mold exhaust device according to claim 1, characterized in that: The outer walls of the two first limit blocks (14) are respectively slidably connected to the inside of the corresponding sliding seats (17); The interiors of the four second limit block grooves (19) are respectively communicated with the interiors of the corresponding sliding block grooves (11).

3. The exhaust device for APG injection mold according to claim 1, characterized in that: The outer walls of one end of the four second limiting blocks (16) close to the second limiting groove (18) are respectively in contact with the inner walls of the corresponding second limiting groove (18); Among them, one end of the four push blocks (9) close to the second limit block (16) is fixedly connected to the upper surface of the corresponding second limit block (16), and the two ends of the eight return springs (8) are fixedly connected to the inner wall of the corresponding push block groove (15) and the outer wall of the push block (9).

4. The exhaust device for APG injection mold according to claim 1, characterized in that: A pressing plate (1) is arranged below the fixed cylinder plate (3); Wherein, a plurality of second through holes (6) are provided on the upper surface of the pressing plate (1).

5. The exhaust device for APG injection mold according to claim 1, characterized in that: The lower end of the cylinder (4) is mounted on the upper surface of the pressing plate (1); Wherein, a plurality of first through holes (5) are provided on the upper surface of the fixed cylinder plate (3).

6. The exhaust device for APG injection mold according to claim 4, characterized in that: Four fixing columns (2) are fixedly connected to the upper surface of the pressing plate (1); The four fixing columns (2) are respectively fixedly connected to the four corners of the pressing plate (1).

7. A method for using an APG injection mold, characterized in that: The following steps are included: S1: First, the device is installed at a designated position through the second through hole (6) on the pressing plate (1) and the first through hole (5) on the fixed cylinder plate (3), and then the device is started to continuously fill the plastic melt through the device. During the injection molding process, the plastic melt is injected into the mold cavity, and the gas is squeezed and pushed to the end or dead corner area of ​​the mold, forming gas accumulation; S2: The mold completes the mold closing action to ensure the mold sealing and prepare for the injection molding process; S3: Start the exhaust device mold design, start it in the form of exhaust groove through mechanical structure; S3: As the plastic melt is continuously filled, the gas inside the mold is gradually discharged. For molds using a vacuum system, the vacuum valve will open the suction valve at the beginning of injection molding to further accelerate the discharge of gas; S4: After the plastic melt completely fills the mold cavity and cools and solidifies, the injection molding process ends, and then the exhaust device is closed and the exhaust action stops; S5: After the injection molding is completed, the mold is opened to take out the molded product. Then, when the cylinder (4) needs to be disassembled, the push block (9) is pushed to move in the opposite direction to drive the second limit block (16) to move in the opposite direction, while the other end of the push block (9) is disengaged from the inside of the second limit groove (18). Then, the handle on the sliding block (10) is pulled to remove the sliding block (10) from the mounting seat (13). After the sliding seat (17) loses the first limit block (14) on the sliding block (10) to limit it, the cylinder (4) and the sliding seat (17) are pulled to remove the cylinder (4) and the sliding seat (17) from the mounting seat (13), so that it is easy to disassemble the cylinder (4).

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