Multi-cavity type injection mold with high-compression-resistance structure

Abstract

The utility model discloses a multi-cavity injection mold with a high pressure-resistant structure, and relates to the technical field of multi-cavity injection molds. The die comprises a base, compression-resistant assemblies and a material ejecting assembly, the top of the base is fixedly connected with an installation base, the top of the installation base is fixedly connected with a fixed die, the top of the fixed die is provided with a movable die, the compression-resistant assemblies are arranged on the two sides of the top of the base and comprise compression-resistant shells, and the bottoms of inner cavities of the compression-resistant shells are fixedly connected with cylinder bodies. According to the utility model, through the compression-resistant assembly, the pressing plate can bear the extrusion of the movable mold, the pressing plate drives the pressing rod and the piston to move downwards through the extrusion of the movable mold, air in the cylinder body is conveyed into the buffer air bag through the conveying pipe by the piston, the buffer air bag is inflated to expand, and the longitudinal force is changed into the transverse force to be dispersed; and meanwhile, a rubber block and a sealing ring are matched to protect the movable mold, so that the service life of the mold is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of multi-cavity injection molds, and particularly relates to a multi-cavity injection mold with a high compressive structure. Background Technique

[0002] A multi-cavity injection mold, also known as a multi-cavity mold or a multi-hole mold, is an injection mold formed by combining multiple cavities. It can produce multiple plastic parts simultaneously, thereby improving production efficiency. The raw material is injected into the mold cavity through the injection hole and cooled to form products with specific shapes and sizes.

[0003] After the existing multi-cavity injection mold is closed by the moving mold and the fixed mold, the raw material is injected into the mold cavity through the injection hole for product production. However, its compressive capacity is poor, and it is easily affected by strong extrusion during use, resulting in deformation of the mold, shortening the service life of the injection mold. The surface of the fixed mold is easily damaged after being extruded by the moving mold for a long time, affecting the sealing performance after the moving mold and the fixed mold are closed.

[0004] Therefore, we provide a multi-cavity injection mold with a high compressive structure to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a multi-cavity injection mold with a high compressive structure. Through the combined setting of a compressive component and a top material component, the problem that the existing multi-cavity injection mold has poor compressive capacity and is easily affected by strong extrusion during use, resulting in deformation of the mold and shortening the service life of the injection mold is solved.

[0006] To solve the above technical problems, the utility model is realized through the following technical solutions:

[0007] The utility model is a multi-cavity injection mold with a high compressive structure, including a base, a compressive component, and a top material component. A mounting seat is fixedly connected to the top of the base, a fixed mold is fixedly connected to the top of the mounting seat, and a moving mold is arranged on the top of the fixed mold;

[0008] The compressive component is arranged on both sides of the top of the base and includes a compressive shell. A cylinder body is fixedly connected to the bottom of the inner cavity of the compressive shell. A piston is arranged in the inner cavity of the cylinder body. A spring is fixedly connected to the bottom of the piston. A pressure rod is fixedly connected to the top of the piston. The top of the pressure rod penetrates through the cylinder body and is fixedly connected to a pressing plate. Buffer air bags are fixedly connected to the front side and the rear side of the bottom of the pressing plate. One side of the two buffer air bags facing each other is communicated with the cylinder body through a conveying pipe;

[0009] The ejector assembly is arranged in the inner cavity of the base and includes a movable plate. A top rod is fixedly connected to the top of the movable plate. The top of the top rod penetrates through the mold cavity of the fixed mold and is fixedly connected to a top plate. On both sides of the bottom of the inner cavity of the base, a cylinder is fixedly connected. The top of the output end of the cylinder is fixedly connected to the movable plate.

[0010] The present utility model is further configured such that on both sides of the inner cavity of the base, a slide rail is fixedly connected. A slider is slidably connected in the inner cavity of the slide rail. On one side of the two sliders facing each other, they are fixedly connected to the movable plate.

[0011] The present utility model is further configured such that on both sides of the movable mold, a sliding sleeve is fixedly connected. A sliding rod is slidably connected in the inner cavity of the sliding sleeve. The bottom of the sliding rod is fixedly connected to the fixed mold.

[0012] The present utility model is further configured such that a protective pad is fixedly connected to the top of the pressing plate. On the front side and the rear side of the top of the base, a rubber block is fixedly connected.

[0013] The present utility model is further configured such that on the front side and the rear side of the inner cavity of the compression-resistant shell, a positioning rod is fixedly connected. A positioning sleeve is sleeved on the surface of the positioning rod. On one side of the two positioning sleeves facing each other, a connecting rod is fixedly connected. The side of the connecting rod away from the positioning sleeve is fixedly connected to the pressing plate.

[0014] The present utility model is further configured such that an injection hole is formed in the top of the movable mold. A sealing ring is fixedly connected to the top of the mounting seat.

[0015] The present utility model is further configured such that a through hole for cooperating with the pressing rod is formed in the top of the cylinder block. The bottom of the spring is fixedly connected to the inner wall of the cylinder block.

[0016] The present utility model is further configured such that the bottom of the buffer airbag is fixedly connected to the inner wall of the compression-resistant shell. The surface of the buffer airbag is corrugated.

[0017] The present utility model has the following beneficial effects:

[0018] 1. Through the compression-resistant assembly of the present utility model, the pressing plate can bear the extrusion of the movable mold. Through the extrusion of the movable mold, the pressing plate drives the pressing rod and the piston to move downward. The air inside the cylinder block is conveyed to the buffer airbag through the conveying pipe by the piston. The buffer airbag inflates and expands, dispersing the longitudinally received force into a transverse force, thereby improving the compression resistance. At the same time, in cooperation with the rubber block and the sealing ring, the movable mold is protected, and the service life of the mold is improved.

[0019] 2. After the injection molding of the mold is completed and the product in the mold cavity is cooled and formed, the utility model can drive the movable plate and the ejector rod to move through the ejector assembly. Through the cooperation of the slide rail and the slider, it can move upward smoothly. The movement of the ejector rod drives the top plate to move upward, so as to eject the formed product in the mold cavity, eliminating the need for manual material taking by workers, which not only improves work efficiency but also reduces the work difficulty of workers.

[0020] Of course, it is not necessary for any product implementing the present utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a three-dimensional structure diagram of a multi-cavity injection mold with a high compressive structure;

[0023] Figure 2 It is a cross-sectional view of the compressive shell of a multi-cavity injection mold with a high compressive structure;

[0024] Figure 3 It is a cross-sectional view of the cylinder block of a multi-cavity injection mold with a high compressive structure;

[0025] Figure 4 It is a schematic diagram of the ejector assembly of a multi-cavity injection mold with a high compressive structure;

[0026] Figure 5 It is a multi-cavity injection mold with a high compressive structure Figure 4 Partial enlarged view of A.

[0027] In the drawings: 1. Base; 2. Mounting seat; 3. Fixed mold; 4. Movable mold; 5. Compressive assembly; 501. Compressive shell; 502. Cylinder block; 503. Piston; 504. Spring; 505. Pressure rod; 506. Pressure plate; 507. Buffer airbag; 508. Delivery pipe; 6. Ejector assembly; 601. Movable plate; 602. Ejector rod; 603. Top plate; 604. Cylinder; 7. Slide rail; 8. Slide block; 9. Slide sleeve; 10. Slide rod; 11. Protection pad; 12. Rubber block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the scope of protection of the present utility model. Specific Embodiment 1

[0030] Please refer to Figures 1-5 , the present utility model is a multi-cavity injection mold with a high compressive structure, including a base 1, a compressive component 5 and a top material component 6. A mounting seat 2 is fixedly connected to the top of the base 1, a fixed mold 3 is fixedly connected to the top of the mounting seat 2, a moving mold 4 is arranged on the top of the fixed mold 3, the compressive component 5 is arranged on both sides of the top of the base 1, including a compressive shell 501, a cylinder body 502 is fixedly connected to the bottom of the inner cavity of the compressive shell 501, a piston 503 is arranged in the inner cavity of the cylinder body 502, a spring 504 is fixedly connected to the bottom of the piston 503, a pressure rod 505 is fixedly connected to the top of the piston 503, the top of the pressure rod 505 penetrates through the cylinder body 502 and is fixedly connected to a pressing plate 506, buffer air bags 507 are fixedly connected to the front side and the rear side of the bottom of the pressing plate 506, and both sides of the opposite side of the two buffer air bags 507 are communicated with the cylinder body 502 through a conveying pipe 508. The top material component 6 is arranged in the inner cavity of the base 1, including a movable plate 601, a top rod 602 is fixedly connected to the top of the movable plate 601, the top of the top rod 602 penetrates through the mold cavity of the fixed mold 3 and is fixedly connected to a top plate 603, and air cylinders 604 are fixedly connected to both sides of the bottom of the inner cavity of the base 1, and the top of the output end of the air cylinder 604 is fixedly connected to the movable plate 601.

[0031] Specifically: The mounting seat 2 is fixed to the top of the base 1 by welding. The piston 503 is supported by a rubber material. The spring 504 can reset the piston 503 when it is not squeezed by the pressure rod 505. The movable plate 601 can cooperate with the air cylinder 604 to control the use height of the top rod 602 and the top plate 603. The top plate 603 can eject the formed product in the mold cavity, eliminating the need for manual material taking by workers. The buffer air bags 507 are fixed below the pressing plate 506 by glue bonding. Specific Embodiment 2

[0033] Please refer to Figures 1-5, on the basis of Specific Embodiment 1, slide rails 7 are fixedly connected to both sides of the inner cavity of the base 1. Sliders 8 are slidably connected to the inner cavities of the slide rails 7. One side of each of the two sliders 8 facing each other is fixedly connected to the movable plate 601. Sleeves 9 are fixedly connected to both sides of the moving die 4. Slide rods 10 are slidably connected to the inner cavities of the sleeves 9. The bottom of the slide rod 10 is fixedly connected to the fixed die 3. A protective pad 11 is fixedly connected to the top of the pressing plate 506. Rubber blocks 12 are fixedly connected to the front side and the rear side of the top of the base 1.

[0034] Specifically: The slide rails 7 and the sliders 8 can facilitate the use of the movable plate 601, enabling it to move up and down smoothly. The slide rods 10 and the sleeves 9 can position the moving die 4, enabling it to accurately and stably close the mold with the fixed die 3. The protective pad 11 can improve the protection effect of the pressing plate 506, and the rubber blocks 12 can protect the base 1. Specific Embodiment 3

[0036] Please refer to Figures 1-5 , on the basis of Specific Embodiment 1 and Specific Embodiment 2, positioning rods are fixedly connected to the front side and the rear side of the inner cavity of the compression-resistant shell 501. Positioning sleeves are sleeved on the surfaces of the positioning rods. One side of each of the two positioning sleeves facing each other is fixedly connected to a connecting rod. The side of the connecting rod away from the positioning sleeve is fixedly connected to the pressing plate 506. An injection hole is formed in the top of the moving die 4. A sealing ring is fixedly connected to the top of the mounting seat 2. A through hole for cooperating with the pressing rod 505 is formed in the top of the cylinder block 502. The bottom of the spring 504 is fixedly connected to the inner wall of the cylinder block 502. The bottom of the buffer airbag 507 is fixedly connected to the inner wall of the compression-resistant shell 501. The surface of the buffer airbag 507 is corrugated.

[0037] Specifically: The positioning rods and the positioning sleeves can cooperate with the connecting rod to control the moving direction of the pressing plate 506, enabling it to only move up and down. The injection hole can facilitate the injection of raw materials into the mold cavities of the moving die 4 and the fixed die 3. The sealing ring can improve the sealing performance after the moving die 4 and the fixed die 3 are closed. The through hole can facilitate the up and down movement of the pressing rod 505. The spring 504 is installed at the bottom of the inner cavity of the cylinder block 502 by welding.

[0038] The working principle of the present utility model is as follows: When injection molding is carried out between the moving mold 4 and the fixed mold 3, the moving mold 4 and the fixed mold 3 are closed. The moving mold 4 pushes the pressure plate 506 downward. After being squeezed, the pressure plate 506 retracts into the inner cavity of the compression-resistant shell 501. At the same time, the pressure plate 506 and the pressure rod 505 cooperate to drive the piston 503 to move downward. The movement of the piston 503 transports the air inside the cylinder block 502 to the buffer airbag 507 through the delivery pipe 508. The buffer airbag 507 is inflated and expands, dispersing the longitudinally received force into a lateral force, thereby improving the compression resistance. At the same time, it cooperates with the rubber block 12 and the sealing ring to protect the moving mold 4 and improve the service life of the mold. After the product in the mold cavity is cooled and formed after the injection molding of the mold, the movable plate 601 and the ejector rod 602 can be driven to move by the air cylinder 604. Through the cooperation of the slide rail 7 and the slider 8, it moves upward smoothly. The movement of the ejector rod 602 drives the top plate 603 to move upward, ejecting the formed product in the mold cavity, eliminating the need for manual material taking by workers, which not only improves the work efficiency but also reduces the work difficulty of workers.

[0039] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0040] The above-disclosed preferred embodiments of the present utility model are only used to help explain the present utility model. The preferred embodiments do not elaborate all the details, nor do they limit the present utility model to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principle and practical application of the present utility model, so that those skilled in the relevant technical field can well understand and utilize the present utility model. The present utility model is only limited by the claims and their full scope and equivalents.

Claims

1. A multi-cavity injection mold with a high pressure-resistant structure, comprising a base (1), a pressure-resistant component (5) and a material ejection component (6), characterized in that: The top of the base (1) is fixedly connected to a mounting seat (2), the top of the mounting seat (2) is fixedly connected to a fixed mold (3), and the top of the fixed mold (3) is provided with a movable mold (4); The pressure-resistant assembly (5) is arranged on both sides of the top of the base (1), and comprises a pressure-resistant shell (501), the bottom of the inner cavity of the pressure-resistant shell (501) is fixedly connected to a cylinder (502), the inner cavity of the cylinder (502) is provided with a piston (503), the bottom of the piston (503) is fixedly connected to a spring (504), the top of the piston (503) is fixedly connected to a pressure rod (505), the top of the pressure rod (505) passes through the cylinder (502) and is fixedly connected to a pressure plate (506), the front and rear sides of the bottom of the pressure plate (506) are fixedly connected to cushioning air bags (507), and the opposite sides of the two cushioning air bags (507) are connected to the cylinder (502) through a delivery pipe (508); The ejector assembly (6) is arranged in the inner cavity of the base (1), and comprises a movable plate (601). The top of the movable plate (601) is fixedly connected to a ejector rod (602). The top of the ejector rod (602) penetrates the mold cavity of the fixed mold (3) and is fixedly connected to a ejector plate (603). Both sides of the bottom of the inner cavity of the base (1) are fixedly connected to cylinders (604). The top of the output end of the cylinder (604) is fixedly connected to the movable plate (601).

2. A multi-cavity injection mold with a high pressure resistance structure according to claim 1, characterized in that: Both sides of the inner cavity of the base (1) are fixedly connected with slide rails (7), the inner cavity of the slide rails (7) is slidably connected with sliders (8), and the opposite sides of the two sliders (8) are fixedly connected to the movable plate (601).

3. The multi-cavity injection mold with a high pressure resistance structure according to claim 1, characterized in that: Both sides of the movable mold (4) are fixedly connected with sliding sleeves (9), the inner cavity of the sliding sleeves (9) is slidably connected with a sliding rod (10), and the bottom of the sliding rod (10) is fixedly connected to the fixed mold (3).

4. The multi-cavity injection mold with a high pressure resistance structure according to claim 1, characterized in that: The top of the pressing plate (506) is fixedly connected to a protection pad (11), and the front and rear sides of the top of the base (1) are fixedly connected to rubber blocks (12).

5. The multi-cavity injection mold with a high pressure resistance structure according to claim 1, characterized in that: The front and rear sides of the inner cavity of the pressure-resistant shell (501) are fixedly connected to positioning rods, and the surfaces of the positioning rods are sleeved with positioning sleeves. The opposite sides of the two positioning sleeves are fixedly connected to connecting rods, and the side of the connecting rods away from the positioning sleeves is fixedly connected to the pressure plate (506).

6. The multi-cavity injection mold with a high pressure resistance structure according to claim 1, characterized in that: An injection hole is provided on the top of the movable mold (4), and a sealing ring is fixedly connected to the top of the mounting seat (2).

7. The multi-cavity injection mold with a high pressure resistance structure according to claim 1, characterized in that: A through hole for use with a pressure rod (505) is provided on the top of the cylinder body (502), and the bottom of the spring (504) is fixedly connected to the inner wall of the cylinder body (502).

8. The multi-cavity injection mold with a high pressure resistance structure according to claim 1, characterized in that: The bottom of the buffer airbag (507) is fixedly connected to the inner wall of the pressure-resistant shell (501), and the surface of the buffer airbag (507) is corrugated.

Images