Engine gasket production die

Abstract

The utility model discloses an engine gasket production die which comprises a base, the upper end of the base is connected with a lower die through a plurality of supporting columns, the lower die is provided with a plurality of forming cavities, the lower die is provided with a material ejecting assembly extending into the forming cavities, the upper end of the base is connected with an upper die through a driving assembly, and the upper die is provided with a material ejecting assembly extending into the forming cavities. And an injection molding pipe is mounted at the upper end of the upper mold in a penetrating manner. The engine gasket production mold is reasonable in structural design, during production, the upper mold moves downwards to be attached to the lower mold, engine gasket production injection molding materials are added into the multiple forming cavities through the injection molding pipe, cold water can cool the upper mold and the lower mold after flowing through the water cooling pipe, product forming is accelerated, and the product quality is improved after product cooling forming. The mounting plate drives the upper die to move upwards to be separated from the lower die, the telescopic connecting rod can drive the multiple ejector rods to move upwards through the connecting plate to push a formed product out of the forming cavity, and material taking is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of engine gasket production, in particular to an engine gasket production mould. Background Art

[0002] Molds are various molds and tools used in industrial production to obtain the desired products by injection molding, blow molding, extrusion, die casting or forging, smelting, stamping and other methods. They mainly realize the processing of the shape of the object by changing the physical state of the molded material. It is known as the "mother of industry". At present, the gaskets used in automobile engines usually need to be produced using molds.

[0003] At present, the existing engine gasket production molds, after the product is injection molded, the upper and lower surfaces of the product are easy to adhere to the upper and lower molds during the mold opening process, which is easy to cause the product to tear during the mold opening process, affecting the quality of the product. Secondly, the product adheres to the mold cavity, which also makes it difficult to remove, thus affecting the efficiency of injection molding. To this end, we designed an engine gasket production mold to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the problems existing in the prior art, and a mold for producing an engine gasket is proposed. During production, the upper mold moves downward and fits with the lower mold, and injection molding material for producing the engine gasket is added into multiple molding cavities through an injection molding tube. Cold water flowing through the water cooling tube can cool the upper mold and the lower mold to accelerate product molding. After the product is cooled and molded, the mounting plate drives the upper mold to move upward and separate from the lower mold. The telescopic connecting rod can drive multiple ejecting rods to move upward through the connecting plate to push the molded product out of the molding cavity, which is beneficial for material removal.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mold for producing an engine gasket comprises a base, wherein the upper end of the base is connected to a lower mold via a plurality of support columns, the lower mold is provided with a plurality of molding cavities, the lower mold is provided with a ejector assembly extending into the plurality of molding cavities, the upper end of the base is connected to an upper mold via a driving assembly, an injection tube is installed through the upper end of the upper mold, the injection tube has a plurality of discharge ends, the plurality of discharge ends of the injection tube are respectively opposite to a plurality of molding cavities, a water cooling tube is commonly provided through the lower mold and the upper mold, and the upper mold and the ejector assembly are connected via a connector.

[0007] Preferably, the ejection assembly includes a plurality of ejection rods which are slidably connected to the lower mold, the plurality of ejection rods are respectively sealed and slidably connected to a plurality of molding cavities, and the bottoms of the plurality of ejection rods are commonly fixedly connected to a connecting plate.

[0008] Preferably, the driving assembly includes a limit rod fixedly connected to the upper end of the base, the side wall of the limit rod is provided with a mounting plate slidably connected thereto, a servo motor is installed at the upper end of the base, the end of the output shaft of the servo motor is fixedly connected to a threaded rod, the thread of the threaded rod passes through the mounting plate, and the upper mold is fixedly connected to the side wall of the mounting plate.

[0009] Preferably, the water cooling pipe is composed of an annular pipe penetrating the lower mold and the upper mold and two connecting pipes installed at both ends of the annular pipe.

[0010] Preferably, the water cooling tube is staggered with the molding cavity and the injection tube.

[0011] Preferably, the connecting member includes a first support plate fixedly connected to the rear side wall of the upper mold and a second support plate fixedly connected to the rear side wall of the lower mold, the opposite side walls of the first support plate and the second support plate are fixedly connected with threaded locking columns, and a telescopic connecting rod is threadedly connected between the two threaded locking columns.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1. When the engine gasket production mold is working, the upper mold moves downward to fit with the lower mold, and the injection molding material for engine gasket production is added into multiple molding cavities through the injection molding tube. Both ends of the water cooling tube are connected to water pipes. Cold water flows through the water cooling tube to cool the upper mold and the lower mold, thereby accelerating product molding.

[0014] 2. For the production mold of the engine gasket, after the product is cooled and formed, the mounting plate drives the upper mold to move upward and separate from the lower mold, the telescopic connecting rod is stretched and drives multiple ejecting rods to move upward through the connecting plate, so that the formed product can be pushed out of the molding cavity, which is conducive to material removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a first-view structural schematic diagram of an engine gasket production mold proposed by the utility model;

[0016] Figure 2 This is a second perspective structural schematic diagram of an engine gasket production mold proposed by the utility model;

[0017] Figure 3 This is a third-angle structural schematic diagram of an engine gasket production mold proposed by the utility model.

[0018] In the figure: 1. base; 2. support column; 3. lower mold; 4. molding cavity; 5. ejector rod; 6. connecting plate; 7. limit rod; 8. mounting plate; 9. servo motor; 10. threaded rod; 11. upper mold; 12. injection tube; 13. water cooling tube; 14. first support plate; 15. second support plate; 16. telescopic connecting rod. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-Figure 3 , a mold for producing an engine gasket, comprising a base 1, the upper end of the base 1 is connected to a lower mold 3 through a plurality of support columns 2, the lower mold 3 is provided with a plurality of molding cavities 4, the lower mold 3 is provided with a ejector assembly extending into the plurality of molding cavities 4, the ejector assembly comprises a plurality of ejector rods 5 penetrating and slidably connected to the lower mold 3, the plurality of ejector rods 5 are respectively sealed and slidably connected to the plurality of molding cavities 4, the outer side walls of the ejector rods 5 are provided with rubber sleeves, which can ensure the sealing between the ejector rods 5 and the lower mold 3, so that the injection material will not flow out through the gap between the molding cavity 4 and the ejector rods 5, and the bottoms of the plurality of ejector rods 5 are commonly fixedly connected with a connecting plate 6, so that the plurality of ejector rods 5 can move up and down synchronously;

[0021] The upper end of the base 1 is connected to an upper mold 11 through a driving assembly. The driving assembly includes a limit rod 7 fixedly connected to the upper end of the base 1. The side wall of the limit rod 7 is sleeved with a mounting plate 8 slidably connected thereto. A servo motor 9 is installed on the upper end of the base 1. The end of the output shaft of the servo motor 9 is fixedly connected to a threaded rod 10. The threaded rod 10 threads through the mounting plate 8. The upper mold 11 is fixedly connected to the side wall of the mounting plate 8. The limit rod 7 and the threaded rod 10 work together to limit the mounting plate 8, so that the mounting plate 8 can only move vertically, thereby driving the upper mold 11 to move up and down.

[0022] An injection tube 12 is installed through the upper end of the upper mold 11. The injection tube 12 has multiple discharges. The multiple discharge ends of the injection tube 12 are respectively opposite to the multiple molding cavities 4. Plastic materials can be added to the multiple molding cavities 4 through the injection tube 12 to produce engine gaskets. A water cooling tube 13 is installed through the lower mold 3 and the upper mold 11. The water cooling tube 13 consists of an annular tube that penetrates the lower mold 3 and the upper mold 11 and two connecting tubes installed at both ends of the annular tube. The annular tube is a telescopic hose. When the upper mold 11 moves up and down, it can be telescoped to adapt to the movement of the upper mold 11. The ends of the two connecting tubes are provided with external threads for external water pipes. Cold water flows through the water cooling tube 13 to cool the lower mold 3 and the upper mold 11, which is beneficial to product molding and is beneficial to the separation of the product from the upper mold 11 and the lower mold 3 for demoulding. The water cooling tube 13 is staggered with the molding cavity 4 and the injection tube 12 to avoid mutual interference during the working process.

[0023] The upper mold 11 and the ejection assembly are connected by a connecting piece, which includes a first support plate 14 fixedly connected to the rear side wall of the upper mold 11 and a second support plate 15 fixedly connected to the rear side wall of the lower mold 3. The opposite side walls of the first support plate 14 and the second support plate 15 are fixedly connected with threaded locking columns, and a telescopic connecting rod 16 is threadedly connected between the two threaded locking columns. Both ends of the telescopic connecting rod 16 are provided with internal thread grooves, which can connect the telescopic connecting rod 16 to the two threaded locking columns. The telescopic connecting rod 16 can connect the first support plate 14 and the second support plate 15, so that the upper mold 11 can drive the connecting plate 6 to move up and down.

[0024] The functional principle of the utility model can be explained through the following operation modes:

[0025] In the utility model, when the engine gasket production mold is working, the servo motor 9 drives the threaded rod 10 to rotate, and can drive the upper mold 11 to move downward and fit with the lower mold 3 through the mounting plate 8. In this process, the telescopic connecting rod 16 contracts and drives the connecting plate 6 to move downward so that the ejector rod 5 is flush with the inner bottom of the molding cavity 4. The injection molding material for engine gasket production is added through the injection molding tube 12, and the injection molding material enters the multiple molding cavities 4 and fills the multiple molding cavities 4. The two ends of the water cooling tube 13 are connected to the water pipe, and cold water flows through the water cooling tube 13 to cool the upper mold 11 and the lower mold 3, thereby accelerating the molding of the product;

[0026] After the product is cooled and formed, the servo motor 9 drives the threaded rod 10 to rotate in the opposite direction, so that the mounting plate 8 drives the upper mold 11 to move upward and separate from the lower mold 3, and the telescopic connecting rod 16 is stretched and drives multiple ejecting rods 5 to move upward through the connecting plate 6, pushing the formed product out of the molding cavity 4, completing the production of the engine gasket. In the process of the upper mold 11 moving up and down, the water-cooling pipe 13 can be stretched and retracted to adapt to its up and down movement.

[0027] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mold for producing an engine gasket, comprising a base (1), characterized in that: The upper end of the base (1) is connected to a lower mold (3) via a plurality of support columns (2), a plurality of molding cavities (4) are provided on the lower mold (3), a top material assembly extending into the plurality of molding cavities (4) is provided on the lower mold (3), the upper end of the base (1) is connected to an upper mold (11) via a driving assembly, an injection tube (12) is installed through the upper end of the upper mold (11), the injection tube (12) has a plurality of discharge ends, the plurality of discharge ends of the injection tube (12) are respectively opposite to the plurality of molding cavities (4), a water cooling tube (13) is provided through both the lower mold (3) and the upper mold (11), and the upper mold (11) and the top material assembly are connected via a connecting piece.

2. The engine gasket production mold according to claim 1, characterized in that: The ejector assembly comprises a plurality of ejector rods (5) penetrating and slidably connected to the lower mold (3); the plurality of ejector rods (5) are respectively sealed and slidably connected to the plurality of molding cavities (4); and the bottoms of the plurality of ejector rods (5) are commonly and fixedly connected to a connecting plate (6).

3. The engine gasket production mold according to claim 1, characterized in that: The driving assembly comprises a limit rod (7) fixedly connected to the upper end of the base (1); a mounting plate (8) slidably connected to the limit rod (7) is sleeved on the side wall of the limit rod (7); a servo motor (9) is mounted on the upper end of the base (1); a threaded rod (10) is fixedly connected to the end of the output shaft of the servo motor (9); the threaded rod (10) is threadedly passed through the mounting plate (8); and the upper mold (11) is fixedly connected to the side wall of the mounting plate (8).

4. The engine gasket production mold according to claim 1, characterized in that: The water cooling pipe (13) is composed of an annular pipe penetrating the lower mold (3) and the upper mold (11), and two connecting pipes penetrating and installed at both ends of the annular pipe.

5. The engine gasket production mold according to claim 4, characterized in that: The water cooling tube (13) is offset from the molding cavity (4) and the injection tube (12).

6. The engine gasket production mold according to claim 1, characterized in that: The connecting member comprises a first support plate (14) fixedly connected to the rear side wall of the upper mold (11) and a second support plate (15) fixedly connected to the rear side wall of the lower mold (3), the first support plate (14) and the second support plate (15) having opposite side walls fixedly connected to them with threaded locking columns, and a telescopic connecting rod (16) being threadedly connected between the two threaded locking columns.

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