In-mold injection molding ceramic gasket positioning mechanism

Abstract

The utility model relates to the technical field of plastic injection molding, in particular to an in-mold injection molding ceramic gasket positioning mechanism which comprises an upper insert, a lower insert and a product body, the product body is sleeved on the lower insert, the upper insert and the lower insert can be assembled, the bottom of the upper insert is fixedly connected with an upper forming mold, and the bottom of the lower insert is fixedly connected with a lower forming mold. The top of the lower insert is fixedly connected with a lower forming mold, the upper forming mold is sleeved with a ceramic gasket, a plurality of air channels are formed in the upper insert, the upper insert is provided with an adsorption part communicated with the air channels, and the adsorption part can adsorb and fix the ceramic gasket to the bottom of the upper insert under the cooperation of the air channels. The ceramic gasket is adsorbed and fixed through the adsorption part, so that the ceramic gasket can be stably arranged on the upper insert, the situation that the ceramic gasket falls off and is damaged is avoided, and ceramic gaskets of different specifications can be replaced according to the shape needing to be formed.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic injection molding, in particular to an in-mold injection molding ceramic gasket positioning mechanism. Background Art

[0002] Plastic injection molding is a processing method in which molten plastic material is injected into a mold, and plastic products of the desired shape and size are obtained through cooling and solidification. In product manufacturing, it is sometimes necessary to injection mold a structure of a specific shape inside some finished products. Therefore, some prefabricated parts are needed to form an injection cavity of a specific shape inside the finished product, so as to facilitate the subsequent injection molding of a structure of a specific shape. For example, a ceramic gasket is used in combination with some prefabricated inserts (which can be some molds or structures) to form an injection cavity of a specific shape, so as to inject some special-shaped structures into the internal plastic of the product. When ceramic gaskets are used in combination with prefabricated inserts, different types of ceramic gaskets can be replaced with the cooperation of prefabricated inserts to form injection cavities of different shapes. This can be selected according to actual production and manufacturing, and can meet the plastic injection molding of some special products.

[0003] However, when ceramic gaskets are used in conjunction with prefabricated inserts for injection molding inside certain finished products, the ceramic gaskets cannot be well limited and fixed, resulting in the ceramic gaskets being easily dropped and damaged, affecting the efficiency of the injection molding and the quality of the injection molded products. Utility Model Content

[0004] In view of this, the purpose of the utility model is to propose an in-mold injection-molded ceramic gasket positioning mechanism to solve the problem that the ceramic gasket cannot be stably placed when the injection cavity is formed by cooperating with the external injection mold and certain special-shaped structures are injected into the interior of the product body.

[0005] Based on the above purpose, the utility model provides an in-mold injection ceramic gasket positioning mechanism, including an upper insert, a lower insert and a product body, the product body is sleeved on the lower insert, and the upper insert and the lower insert can be molded together, the bottom of the upper insert is fixedly connected to the upper molding mold, the top of the lower insert is fixedly connected to the lower molding mold, and the upper molding mold is sleeved with a ceramic gasket.

[0006] A plurality of air passages are provided inside the upper insert, and an adsorption portion connected to the air passage is provided on the upper insert. With the cooperation of the air passage, the adsorption portion can adsorb and fix the ceramic gasket on the bottom of the upper insert. When the upper molding mold is combined with the lower molding mold, an injection cavity can be formed inside the product body with the cooperation of the ceramic gasket.

[0007] Preferably, the number of the air channels is not less than four, and the number of the air channels is not less than four and is evenly spaced and distributed on the upper insert.

[0008] Preferably, the adsorption part comprises a vacuum emitter, and the vacuum emitter is connected to the upper insert through an air pipe.

[0009] Preferably, the air pipe consists of a main pipe and a branch pipe, the main pipe is connected to the suction port of the vacuum transmitter, one end of the branch pipe is connected to the main pipe, and the other end of the branch pipe is connected to the upper insert.

[0010] Preferably, a sealing ring is fixedly provided at the connection between the branch pipe and the upper insert to improve the sealing performance of the connection.

[0011] Preferably, the upper insert and the upper molding die, as well as the lower insert and the lower molding die, are all integrally formed structures.

[0012] The beneficial effects of the utility model are as follows: the product body is sleeved on the lower insert, and an external injection mold is arranged inside the product body, and the adsorption part, with the cooperation of the air duct, can stably adsorb and fix the ceramic gasket on the upper molding mold, and when the upper molding mold is combined with the lower molding mold, an injection cavity can be formed with the cooperation of the ceramic gasket, and the external injection mold can seal the formed injection cavity, so as to facilitate the injection molding of a structure of a specific shape inside the product body. In summary, the ceramic gasket is fixed by adsorption, so that the ceramic gasket can be stably set on the upper insert, avoiding the situation of the ceramic gasket falling and being damaged, and ceramic gaskets of different specifications can be replaced according to the shape to be formed. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure when the upper insert and the lower insert of the embodiment of the utility model are separated;

[0016] Figure 3 It is a cross-sectional view of the product body, the upper insert and the lower insert of the embodiment of the utility model;

[0017] Figure 4 This is a schematic structural diagram of an upper insert and an upper forming mold according to an embodiment of the utility model;

[0018] Figure 5 For the utility model embodiment Figure 4 sectional view of .

[0019] In the figure: 1. upper insert; 2. lower insert; 3. upper molding die; 4. lower molding die; 5. ceramic gasket; 6. airway; 7. adsorption part; 71. vacuum emitter; 72. air pipe; 721. main pipe; 722. branch pipe; 8. sealing ring; 9. product body. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0021] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, an in-mold injection molding ceramic gasket positioning mechanism is used in conjunction with an external injection mold to inject a structure of a specific shape into a product body 9, comprising an upper insert 1, a lower insert 2 and a product body 9, wherein the upper insert 1 may be in a cylindrical shape, and the lower insert 2 is a structure with a spiral groove on the surface of the cylinder, and the spiral groove is provided to facilitate the product body 9 to be sleeved on the lower insert 2, the product body 9 is sleeved on the lower insert 2, and the upper insert 1 and the lower insert 2 can be molded together, the bottom of the upper insert 1 is fixedly connected to an upper molding mold 3, the top of the lower insert 2 is fixedly connected to a lower molding mold 4, and the upper molding mold 3 is sleeved with a ceramic gasket 5;

[0023] When the upper insert 1 and the lower insert 2 are close to each other and molded together, an injection cavity of a specific shape can be formed with the cooperation of the upper molding mold 3, the lower molding mold 4 and the ceramic gasket 5. By replacing ceramic gaskets 5 of different specifications, the shape of the injection cavity can be changed. With the cooperation of the external injection mold, it is convenient to inject a structure of a specific shape into the product body 9, which provides convenience for the corresponding production and manufacturing.

[0024] A plurality of air passages 6 are provided inside the upper insert 1, and an adsorption portion 7 communicating with the air passages 6 is provided on the upper insert 1. With the cooperation of the air passages 6, the adsorption portion 7 can adsorb and fix the ceramic gasket 5 on the bottom of the upper insert 1. When the upper molding mold 3 and the lower molding mold 4 are combined and closed, an injection cavity can be formed inside the product body 9 with the cooperation of the ceramic gasket 5.

[0025] When a structure of a specific shape is injection molded inside the product body 9, the ceramic gasket 5 is first mounted on the upper molding die 3, and then the ceramic gasket 5 is adsorbed and fixed by the adsorption portion 7, so that the ceramic gasket 5 can be stably mounted on the upper molding die 3. When the upper insert 1 and the lower insert 2 are subsequently brought close to each other for mold closing, the upper molding die 3 and the lower molding die 4 can be smoothly closed, and the ceramic gasket 5 is prevented from falling off during the mold closing process, which provides convenience for subsequent injection molding.

[0026] In a preferred embodiment of the present invention, the number of air ducts 6 is not less than four, and the number of air ducts 6 is not less than four and is evenly spaced on the upper insert 1. The arrangement of multiple air ducts 6 provides a better fixing effect on the ceramic gasket 5.

[0027] In another preferred embodiment of the present invention, the adsorption portion 7 includes a vacuum emitter 71 , and the vacuum emitter 71 is connected to the upper insert 1 through an air pipe 72 .

[0028] The vacuum emitter 71 generates negative pressure when in operation, and the suction force generated by the negative pressure through the air pipe 72 and the air channel 6 can stably adsorb and fix the ceramic gasket 5 on the upper insert 1 .

[0029] In another preferred embodiment of the utility model, the air pipe 72 is composed of a main pipe 721 and a branch pipe 722. The main pipe 721 is connected to the suction port of the vacuum emitter 71, one end of the branch pipe 722 is connected to the main pipe 721, and the other end of the branch pipe 722 is connected to the upper insert 1.

[0030] When it is necessary to injection mold a specific structure inside the product body 9, the product body 9 is first sleeved on the lower insert 2, and an external injection mold is set inside the product body 9, and the vacuum emitter 71 is started. The vacuum emitter 71 generates negative pressure and transmits the suction force to the air duct 6 of the upper insert 1 through the main pipe 721 and the branch pipe 722, so that the ceramic gasket 5 can be stably and firmly adsorbed and fixed on the bottom of the upper insert 1, that is, it is stably sleeved on the upper molding mold 3. Subsequently, when the upper molding mold 3 and the lower molding mold 4 are combined and molded, an injection cavity can be formed with the cooperation of the ceramic gasket 5, and the external injection mold can seal the formed injection cavity, so as to facilitate the injection molding of a structure of a specific shape inside the product body 9. In the process of the upper molding mold 3 and the lower molding mold 4 approaching each other for molding, the lower insert 2 can be driven by an external power device.

[0031] It should be noted that the connection between the branch pipe 722 and the upper insert 1 is fixedly sleeved with a sealing ring 8 for improving the sealing of the connection. The sealing ring 8 improves the sealing of the connection and makes the suction force on the ceramic gasket stronger.

[0032] It should be noted that the upper insert 1 and the upper molding die 3 as well as the lower insert 2 and the lower molding die 4 are all integrally formed structures, and the firmness of the relevant structures is increased through the integrally formed setting.

[0033] A person skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0034] The embodiments of the present invention are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A positioning mechanism for an in-mold injection-molded ceramic gasket, comprising an upper insert (1), a lower insert (2) and a product body (9), wherein the product body (9) is sleeved on the lower insert (2), and the upper insert (1) and the lower insert (2) can be molded together, characterized in that: The bottom of the upper insert (1) is fixedly connected to an upper molding die (3), the top of the lower insert (2) is fixedly connected to a lower molding die (4), and a ceramic gasket (5) is sleeved on the upper molding die (3); The upper insert (1) is provided with a plurality of air passages (6) inside, and the upper insert (1) is provided with an adsorption portion (7) which is in communication with the air passages (6). The adsorption portion (7) can adsorb and fix the ceramic gasket (5) on the bottom of the upper insert (1) in cooperation with the air passages (6). When the upper molding die (3) and the lower molding die (4) are combined and molded, an injection cavity can be formed inside the product body (9) in cooperation with the ceramic gasket (5).

2. The in-mold injection molding ceramic gasket positioning mechanism according to claim 1, characterized in that: The number of the air passages (6) is not less than four, and the number of the air passages (6) is not less than four and is distributed on the upper insert (1) at equal intervals.

3. The in-mold injection molding ceramic gasket positioning mechanism according to claim 1, characterized in that: The adsorption part (7) comprises a vacuum emitter (71), and the vacuum emitter (71) is connected to the upper insert (1) via an air pipe (72).

4. The in-mold injection molding ceramic gasket positioning mechanism according to claim 3, characterized in that: The air pipe (72) is composed of a main pipe (721) and a branch pipe (722). The main pipe (721) is connected to the vacuum emitter (71), one end of the branch pipe (722) is connected to the main pipe (721), and the other end of the branch pipe (722) is connected to the upper insert (1).

5. The in-mold injection molding ceramic gasket positioning mechanism according to claim 4, characterized in that: The connection between the branch pipe (722) and the upper insert (1) is fixedly sleeved with a sealing ring (8) for improving the sealing performance of the connection.

6. The in-mold injection molding ceramic gasket positioning mechanism according to claim 1, characterized in that: The upper insert (1) and the upper molding die (3) as well as the lower insert (2) and the lower molding die (4) are all integrally formed structures.

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