Vacuum adsorption fixing structure for injection mold and injection mold

Abstract

The utility model discloses a vacuum adsorption fixing structure for injection mold and injection mold, the vacuum adsorption fixing structure for injection mold comprises a core-pulling mechanism, the core-pulling mechanism is provided with a positioning groove suitable for positioning an insert, the core-pulling mechanism is also provided with an adsorption nozzle corresponding to the positioning groove so as to adsorb and fix the insert, and the insert is fixed on the core-pulling mechanism. One side of the adsorption nozzle is communicated with a gas channel, the other side of the adsorption nozzle is communicated with a positioning groove, the gas channel is formed in the core-pulling mechanism, and the insert is an element embedded into a product obtained through injection molding, so that the insert can be adsorbed and fixed by the adsorption nozzle after being positioned in the positioning groove, the insert is prevented from falling off, and the mold pressing risk is avoided; in addition, due to the fact that adsorption fixation is adopted to be matched with positioning of the positioning groove, the placement angle of the insert can be made to have more possibilities.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum adsorption fixing structures, in particular to a vacuum adsorption fixing structure for an injection mold and an injection mold. Background Art

[0002] A connector for an automobile motor includes a plastic body and an aluminum sheet embedded in the plastic body. When injection molding this connector, a core pulling mechanism is required to facilitate demolding. In order to limit the aluminum sheet in a vertical state, an aluminum sheet positioning groove needs to be opened on the core pulling mechanism. The aluminum sheet is limited in the aluminum sheet positioning groove. The aluminum sheet is obtained by punching, and the size will have deviations, resulting in poor positioning of the aluminum sheet in the aluminum sheet positioning groove. Especially during the rotation of the core pulling mechanism, aluminum sheets with smaller sizes will fall off from the aluminum sheet positioning groove, causing the risk of die pressing, and the die pressing phenomenon will cause the production of the connector to be suspended and the defective rate to increase.

[0003] In view of the above-mentioned shortcomings, it is necessary to design a vacuum adsorption fixing structure for an injection mold and an injection mold. Utility Model Content

[0004] Therefore, the technical problem to be solved by the utility model is that when the connector on the existing automobile motor is injection molded, the aluminum sheet is positioned by the aluminum sheet positioning groove, which easily causes the risk of mold compression due to the aluminum sheet falling off, thereby providing a vacuum adsorption fixing structure for the injection mold and an injection mold.

[0005] In order to solve the above technical problems, the technical solution of the utility model is as follows:

[0006] A vacuum adsorption and fixing structure for an injection mold comprises a core pulling mechanism, wherein a positioning groove is provided on the core pulling mechanism, which is suitable for positioning an inlaid component. A suction nozzle is also provided on the core pulling mechanism corresponding to the positioning groove to adsorb and fix the inlaid component. One side of the suction nozzle is connected to a gas channel, and the other side is connected to the positioning groove. The gas channel is provided in the core pulling mechanism, and the inlaid component is a component embedded in a product obtained by injection molding.

[0007] Furthermore, it also includes a high temperature resistant connecting pipe, and the adsorption nozzle is connected to the gas channel through the high temperature resistant connecting pipe.

[0008] Furthermore, it also includes an air intake connector, which is connected to the other end of the gas channel.

[0009] Furthermore, the positioning groove is extended vertically, and the inlay is vertically installed in the positioning groove.

[0010] Furthermore, spurs are provided on both sides of the inlay, and the spurs are in interference fit with the side walls of the positioning groove. A boss is also provided in the positioning groove, and the inlay sits on the boss.

[0011] Further, in the thickness direction of the inlay, the boss extends beyond the adsorption nozzle.

[0012] Furthermore, the suction nozzle protrudes into the positioning groove, and the width of the suction nozzle is equivalent to the width of the inlay.

[0013] Furthermore, there are a plurality of positioning grooves, a plurality of adsorption nozzles, and the plurality of adsorption nozzles are arranged in one-to-one correspondence with the plurality of positioning grooves, and the plurality of positioning grooves are arranged at intervals on a sector-shaped surface.

[0014] Furthermore, the core-pulling mechanism can rotate around a vertical axis.

[0015] The technical solution of the utility model has the following advantages:

[0016] 1. The vacuum adsorption and fixing structure for the injection mold provided by the utility model includes a core pulling mechanism, a positioning groove is provided on the core pulling mechanism, which is suitable for positioning the inlay, and a suction nozzle is provided on the core pulling mechanism corresponding to the positioning groove to adsorb and fix the inlay, one side of the suction nozzle is connected to the gas channel, and the other side is connected to the positioning groove, and the gas channel is provided in the core pulling mechanism. The inlay is a component embedded in the product obtained by injection molding. In this way, after the inlay is positioned in the positioning groove, it can also be adsorbed and fixed by the suction nozzle to ensure that the inlay will not fall, thereby avoiding the risk of compression molding, thereby shortening the injection molding cycle, saving injection molding resources, and improving the stability of the injection molding process. In addition, due to the use of adsorption fixation combined with positioning groove positioning, there are more possibilities for the placement angle of the inlay.

[0017] 2. The injection mold provided by the utility model uses a vacuum adsorption fixing structure, the positioning groove is vertically extended, and the inlay is vertically installed in the positioning groove to adapt to the injection molding products in which the inlay needs to be placed vertically.

[0018] 3. The injection mold provided by the utility model uses a vacuum adsorption fixing structure, and spurs are provided on both sides of the inlay, which interfere with the side walls of the positioning groove. In this way, the fit between the inlay and the positioning groove can be improved. A boss is also provided in the positioning groove, and the inlay sits on the boss. In this way, when the adsorption fixation fails, the risk of the inlay falling downward and detaching from the positioning groove to cause the molding phenomenon can be reduced.

[0019] 4. The injection mold provided by the utility model uses a vacuum adsorption fixing structure. In the thickness direction of the inlay, the boss extends beyond the adsorption nozzle. In this way, the area of ​​the boss blocking the inlay is increased. When the adsorption fixation fails, the risk of the inlay falling downward and detaching from the positioning groove, resulting in the molding phenomenon, can be further reduced.

[0020] 5. The injection mold provided by the utility model adopts a vacuum adsorption fixing structure, and the adsorption nozzle protrudes into the positioning groove so that the embedded part can fit better with the adsorption nozzle.

[0021] An injection mold comprises the aforementioned vacuum adsorption fixing structure for the injection mold.

[0022] The technical solution of the utility model has the following advantages:

[0023] The injection mold provided by the utility model has all the advantages of the aforementioned vacuum adsorption fixing structure for injection molds. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is a three-dimensional schematic diagram of an injection mold including a vacuum adsorption fixing structure for an injection mold in an embodiment of the utility model at a first angle;

[0026] Figure 2 It is a front view of an injection mold including a vacuum adsorption fixing structure for the injection mold in an embodiment of the utility model;

[0027] Figure 3 It is a three-dimensional schematic diagram of an injection mold including a vacuum adsorption fixing structure for an injection mold in an embodiment of the utility model at a second angle;

[0028] Figure 4 It is a partial enlarged view of an injection mold including a vacuum adsorption fixing structure for the injection mold in an embodiment of the utility model;

[0029] Figure 5 It is a partial enlarged view of the injection mold with the embedded part removed in the embodiment of the utility model including the vacuum adsorption fixing structure for the injection mold.

[0030] Description of reference numerals:

[0031] 1. Core pulling mechanism; 2. Inlay; 21. Protrusion; 3. Positioning groove; 31. Side wall; 32. Boss; 4. Adsorption nozzle; 5. High temperature resistant connecting pipe; 6. Suction joint. DETAILED DESCRIPTION

[0032] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0036] Before introducing the design of this utility model, the design background is explained again:

[0037] The inlay 2 (usually an aluminum sheet) in the connector on the automobile motor cannot be molded if it is placed horizontally, so the aluminum sheet needs to be placed vertically. The aluminum sheet is obtained by punching and has thorns 21 on both sides. The aluminum sheet is positioned in the positioning groove 3 of the core pulling mechanism 1. When the aluminum sheet is smaller in size due to dimensional deviation in processing, the aluminum sheet will fall out of the positioning groove 3 during the rotation of the core pulling mechanism 1, resulting in a die pressing phenomenon. Therefore, it is necessary to solve this problem.

[0038] like Figures 1 to 5As shown, this embodiment provides an injection mold, in particular, an injection mold for a connector on an automobile motor, including a front mold (not shown) and two rear molds. After the plastic is solidified, the push rod on the front mold enters the hole in the rear mold to push the rear mold to move for demolding. Because there are two rear molds, when one rear mold cooperates with the front mold for injection molding, the robot puts the insert 2 into the positioning groove 3 on the other rear mold.

[0039] The rear mold includes a vacuum adsorption fixing structure for the injection mold. The vacuum adsorption fixing structure for the injection mold includes a core pulling mechanism 1, a high temperature resistant connecting pipe 5, and an air suction joint 6.

[0040] The core pulling mechanism 1 can rotate around a vertical axis. The core pulling mechanism 1 is provided with a positioning groove 3, a suction nozzle 4 and a gas channel (not shown).

[0041] The positioning groove 3 is used to position the insert 2 (the insert 2 is a component embedded in the product obtained by injection molding). The positioning groove 3 extends vertically and opens toward the front mold. As mentioned above, for the connector on the automobile electrode, the positioning groove 3 needs to be set vertically, and accordingly, the insert 2 is also set vertically, in order to facilitate mold opening. If the insert 2 is placed horizontally, the mold cannot be opened. Figure 1 As shown, the core pulling mechanism 1 is provided with three positioning grooves 3, and an inlay 2 is inserted into each positioning groove 3. The positioning groove 3 positions the inlay 2. The three positioning grooves 3 are arranged at equal intervals along the sector surface.

[0042] The suction nozzle 4 is arranged in a one-to-one correspondence with the positioning groove 3 to adsorb and fix the inlay 2. When the number of the positioning grooves 3 is three, the number of the suction nozzles 4 is also three accordingly. Of course, the number of the suction nozzles 4 and the positioning grooves 3 can also be other values, which are not specifically limited here and can be set according to actual needs. One side of the suction nozzle 4 is connected to the gas channel, and the gas channel is opened in the core pulling mechanism 1. Specifically, this side of the suction nozzle 4 is connected to the gas channel through a high-temperature resistant connecting pipe 5. The other side of the suction nozzle 4 is connected to the positioning groove 3. In this way, after the inlay 2 is positioned in the positioning groove 3, it can also be adsorbed and fixed by the suction nozzle 4 to ensure that the inlay 2 will not fall off, thereby avoiding the risk of compression molding, thereby shortening the injection molding cycle, saving injection molding resources, and improving the stability of the injection molding process. In addition, due to the use of adsorption fixation combined with the positioning groove 3 for positioning, the placement angle of the inlay 2 has more possibilities.

[0043] The cross section of the suction nozzle 4 is generally circular. The suction nozzle 4 protrudes into the positioning groove 3 so that the inlay 2 can be better fitted with the suction nozzle 4. The width of the suction nozzle 4 is equivalent to the width of the inlay 2, so that the contact area between the suction nozzle 4 and the inlay 2 can be increased.

[0044] The air suction connector 6 is arranged on the side of the rear mold facing away from the front mold. The air suction connector 6 is connected to the other end of the gas channel.

[0045] In the present embodiment, the inlay 2 is a metal part. Specifically, the inlay 2 is an aluminum part. The aluminum part is in sheet shape, and for the sake of convenience, it is called an aluminum sheet. The aluminum sheet is obtained by punching. Spikes 21 are provided on both sides of the aluminum sheet, and the spikes 21 interfere with the side walls 31 of the positioning groove 3. In this way, the fit between the aluminum sheet and the positioning groove 3 can be improved. A boss 32 is also provided in the positioning groove 3, and the aluminum sheet sits on the boss 32. In this way, when the adsorption fixation fails, the risk of the inlay 2 falling downward and detaching from the positioning groove 3, resulting in a die pressing phenomenon, can be further reduced. Preferably, in the thickness direction of the inlay 2 (such as Figure 4 In the direction of the arrow in the figure, the boss 32 extends beyond the suction nozzle 4, so that the area of ​​the boss 32 blocking the inlay 2 is increased, and when the suction fixation fails, the risk of the inlay 2 falling downward and escaping from the positioning groove 3, resulting in the die pressing phenomenon, can be further reduced. The surface of the aluminum sheet is perpendicular to the axis of the suction nozzle 4.

[0046] In summary, in this embodiment, the inlay 2 can be firmly fixed in the positioning groove 3, so that firstly, the risk of the inlay 2 falling and causing the die pressing can be avoided, and secondly, due to the limiting effect of the positioning groove 3, the inlay 2 can be prevented from being offset, thereby affecting the quality of the finished product. In addition, since the positioning groove 3 is provided with a boss 32, the inlay 2 can be largely prevented from falling from the positioning groove 3 when the adsorption fixation fails, that is, in this embodiment, the inlay 2 has a double anti-falling measure.

[0047] In addition, the fixing method of the inlay 2 in this embodiment is not only applicable to the injection molding of connectors on automobile motors, but also applicable to the injection molding production of other products.

[0048] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A vacuum adsorption fixing structure for an injection mold, characterized in that: The invention comprises a core pulling mechanism (1), wherein a positioning groove (3) is provided on the core pulling mechanism (1) and is suitable for positioning an inlay (2); a suction nozzle (4) is also provided on the core pulling mechanism (1) corresponding to the positioning groove (3) so as to adsorb and fix the inlay (2); one side of the suction nozzle (4) is connected to a gas channel and the other side is connected to the positioning groove (3); the gas channel is provided in the core pulling mechanism (1); and the inlay (2) is a component embedded in a product obtained by injection molding.

2. The vacuum adsorption fixing structure for injection mold according to claim 1, characterized in that: It also comprises a high temperature resistant connecting pipe (5), and the adsorption nozzle (4) is connected to the gas channel through the high temperature resistant connecting pipe (5).

3. The vacuum adsorption fixing structure for injection mold according to claim 2, characterized in that: It also comprises an air suction connector (6), wherein the air suction connector (6) is connected to the other end of the gas channel.

4. The vacuum adsorption fixing structure for injection mold according to any one of claims 1 to 3, characterized in that: The positioning groove (3) is extended vertically, and the inlay (2) is vertically installed in the positioning groove (3).

5. The vacuum adsorption fixing structure for injection mold according to claim 4, characterized in that: The two sides of the inlay (2) are provided with thorns (21), and the thorns (21) are in interference fit with the side walls (31) of the positioning groove (3). The positioning groove (3) is also provided with a boss (32), and the inlay (2) sits on the boss (32).

6. The vacuum adsorption fixing structure for injection mold according to claim 5, characterized in that: In the thickness direction of the inlay (2), the boss (32) extends beyond the adsorption nozzle (4).

7. The vacuum adsorption fixing structure for injection mold according to any one of claims 1 to 3, characterized in that: The adsorption nozzle (4) protrudes into the positioning groove (3), and the width of the adsorption nozzle (4) is equivalent to the width of the inlay (2).

8. The vacuum adsorption fixing structure for injection mold according to any one of claims 1 to 3, characterized in that: There are a plurality of positioning grooves (3), a plurality of adsorption nozzles (4), and the plurality of adsorption nozzles (4) are arranged in a one-to-one correspondence with the plurality of positioning grooves (3). The plurality of positioning grooves (3) are arranged at intervals on a fan-shaped surface.

9. The vacuum adsorption fixing structure for injection mold according to any one of claims 1 to 3, characterized in that: The core-pulling mechanism (1) can rotate around a vertical axis.

10. An injection mold, characterized in that: The vacuum adsorption fixing structure for the injection mold comprises any one of claims 1 to 9.

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