Glue-leakage-proof glue feeding mold

Abstract

The utility model relates to the technical field of forming processing, and particularly discloses a glue-leakage-proof glue feeding mold which comprises a first mold body and a second mold body matched with the first mold body for use, the first mold body comprises a first plate, a hole body is formed in the first plate, the second mold body comprises a second plate, a first groove body is formed in the second plate, the first groove body is communicated with the hole body and is used for injecting external colloid, and the colloid can be effectively prevented from leaking in the injection process through matching of the first mold body and the second mold body during use; meanwhile, due to clamping of an external forming mold in the vertical direction, glue overflowing caused by possible expansion and deformation of the mold plates when the double-plate mold combination hole is used is avoided, the utilization rate of materials is increased, cleaning and maintenance work is reduced, the production cost is reduced, meanwhile, the mold is easier to clean and maintain due to the structure of the mold hole body and the groove body, and the production efficiency is improved. The error rate of a single long hole body and poor products are reduced, and the service life of the die can be effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of molding processing, and particularly discloses a glue leakage prevention feeding mold. Background Art

[0002] Injection molding, also known as injection mold molding, is a molding method that combines injection and molding. The advantages of the injection molding method are fast production speed, high efficiency, and a variety of color and pattern varieties. It is suitable for molding processing fields such as mass production and products with complex shapes. For example, the insulating plate on the terminal in a SIM card connector is usually manufactured by injection molding technology. In this process, the plastic material is injected into a mold containing the terminal layout design under high pressure, and this mold is designed to precisely form the shape of the insulating layer on the terminal.

[0003] However, the applicant found that most of the existing feeding molds are double-template combination holes or single-template electrical discharge machining holes, but there are problems such as easy glue leakage or high processing costs. Therefore, there is an urgent need for a glue leakage prevention feeding mold to solve the above problems. Summary of the Utility Model

[0004] In order to overcome the disadvantages and deficiencies of easy glue leakage or high processing costs in the prior art, the purpose of the utility model is to provide a glue leakage prevention feeding mold, which includes a first mold body and a second mold body used in cooperation with the first mold body; the first mold body includes a first plate member, and a hole body is opened on the first plate member. The second mold body includes a second plate member, and a first groove body is opened on the second plate member. The first groove body is connected to the hole body for injecting external colloid.

[0005] Preferably, the first mold body further includes a third plate member and a fourth plate member bent and extended from both ends of the first plate member. The length directions of the third plate member and the fourth plate member are parallel. The first plate member, the third plate member, and the fourth plate member enclose a cavity for accommodating the second plate member. By placing the second plate member in the cavity, the tight fit between the first mold body and the second mold body can be ensured, thereby achieving better colloid injection and glue leakage prevention effects.

[0006] Preferably, both the first mold body and the second mold body are integrally formed. The integral structure can reduce the connection parts between components, thereby improving the stability and stiffness of the overall structure. It helps the first mold body and the second mold body to be less likely to deform or be damaged during use, thus extending their service life.

[0007] Preferably, the first groove penetrates through the end faces of the second plate member close to and away from the first plate member respectively. The aperture diameter of the end of the first groove away from the first plate member is not less than that of the end of the first groove close to the first plate member. The design of different aperture diameters can be used to control the pressure and flow during the injection molding process. A higher injection pressure can be provided through the larger aperture diameter, while the smaller aperture diameter can limit the flow rate, which helps to achieve more precise injection control and improve product quality.

[0008] Preferably, the hole body includes a third groove and a second groove that respectively penetrate through the first plate member close to and away from the second plate member. The third groove is communicated with the second groove. The third groove and the second groove are respectively used to cooperate with the second plate member to introduce fluid and for fluid injection.

[0009] Preferably, the aperture diameter of the end of the third groove close to the second plate member is larger than that of the end of the third groove away from the second plate member, and the aperture diameter of the end of the third groove close to the second plate member is not larger than that of the end of the first groove close to the first plate member. The larger aperture diameter at the end close to the second plate member can provide a higher pressure, which is beneficial to the injection or transfer of fluid, while the smaller aperture diameter at the end away from the second plate member can limit the pressure, which helps to control the flow and pressure distribution of the fluid.

[0010] Preferably, a protrusion is provided at one end of the first plate member away from the second plate member. The end of the second groove away from the second plate member penetrates through the free end face of the protrusion. The protrusion can ensure that when injecting the rubber compound, the rubber compound can fill to the bottom end of the mold, guarantee the integrity of the molded part, avoid the occurrence of cavities or incomplete situations, reduce the generation of air bubbles. At the same time, the protruding bottom end of the injection port makes it more convenient to clean the mold, which can ensure that there is no rubber compound residue at the bottom and is also convenient for maintaining and servicing the mold.

[0011] Preferably, a second chamfer is provided at one end of the second plate member close to the first plate member. The second chamfer is used to facilitate the introduction of the second plate member. The second chamfer can prevent the second plate member from colliding with the edge or other structures of the first plate member during introduction. It can reduce the friction and resistance during the introduction process and make the introduction smoother.

[0012] Preferably, protrusions and / or grooves are provided on the first plate member. The protrusions and / or grooves are used for the positioning and alignment of the mold / the special shape structure of the injection molded part.

[0013] Preferably, the length dimension of the second plate member is equal to that of the third plate member, so that the first mold body and the second mold body are vertically limited when used in cooperation and are less likely to separate.

[0014] To achieve the above object, a leak-proof glue injection mold of the present utility model.

[0015] Advantages of the present utility model: During use, through the cooperation of the first die body and the second die body, leakage of the colloid during injection can be effectively prevented. At the same time, in the up and down direction, due to clamping by the external forming die, it avoids the glue overflow caused by the template expansion and deformation that may occur when using the double-plate die combination hole. This not only improves the material utilization rate but also reduces the cleaning and maintenance work, thereby reducing the production cost. At the same time, the structure of the die hole body and the groove body makes the die easier to clean and maintain, reduces the error rate of a single long hole body and product defects, and can effectively extend the service life of the die. Description of the Drawings

[0016] Figure 1 It is one of the schematic structural diagrams of the glue inlet die of the present utility model;

[0017] Figure 2 It is the exploded schematic diagram of the glue inlet die of the present utility model;

[0018] Figure 3 It is the schematic structural diagram of the first die body of the present utility model;

[0019] Figure 4 It is the second schematic structural diagram of the glue inlet die of the present utility model;

[0020] Figure 5 It is the cross-sectional schematic diagram of the glue inlet die of the present utility model;

[0021] Figure 6 It is Figure 5 The enlarged schematic diagram at position A in

[0022] Figure 7 It is the schematic structural diagram of the injection mold for the card holder insulator in the prior art;

[0023] Figure 8 It is the schematic diagram of the placement of the internal glue inlet die of the injection mold for the card holder insulator in the prior art;

[0024] Figure 9 It is the schematic structural diagram of one of the glue inlet dies in the prior art;

[0025] Figure 10 It is the schematic structural diagram of the second glue inlet die in the prior art;

[0026] Figure 11 It is the schematic structural diagram after the injection of the card holder insulator in the prior art is completed.

[0027] Reference numerals include:

[0028] 1 - First module 2 - Second module 3 - Hole body 11 - First plate 12 - Third plate 13 - Fourth plate 14 - First chamfer 15 - Protrusion 16 - Groove 17 - Protrusion 18 - Fourth groove 21 - Second plate 22 - First groove 23 - Second chamfer 24 - Protruding block 31 - Second groove 32 - Third groove Detailed Embodiments

[0029] For the convenience of those skilled in the art, the present utility model will be further described below in conjunction with embodiments and accompanying drawings. The content mentioned in the embodiments does not limit the present utility model.

[0030] Please refer to Figures 1 to 11 As shown, a glue leakage-proof glue injection mold of the present utility model includes a first mold body 1 and a second mold body 2 used in cooperation with the first mold body 1; the first mold body 1 includes a first plate member 11, and a hole body 3 is opened on the first plate member 11. The second mold body 2 includes a second plate member 21, and a first groove body 22 is opened on the second plate member 21. The first groove body 22 is connected to the hole body 3 for injecting external colloid.

[0031] Specifically, when in use, the cooperation of the first mold body 1 and the second mold body 2 can effectively prevent the leakage of colloid during the injection process, and avoid the glue overflow caused by the template expansion and deformation that may occur when using the double-plate mold combination hole. It not only improves the material utilization rate, but also reduces the cleaning and maintenance work, thereby reducing the production cost. At the same time, the structure of the hole body and the groove body of the mold makes the mold easier to clean and maintain, thereby prolonging the service life of the mold.

[0032] Specifically, the hole body 3 opened on the first plate member 11 and the first groove body 22 opened on the second plate member 21 are both processed by a slow wire cutting machine for electrical discharge machining. Only performing electrical discharge machining on the hole body 3 can solve the problems of low efficiency and high cost of traditional single-template holes (the length of the hole body is too long. Since the slow wire machining speed is directly affected by the length of the machining path, a short path can reduce the total time of single machining), and at the same time, it can also avoid the low product qualification rate caused by poor discharge ends. The shorter machining path can effectively reduce the heat accumulation during the machining process, help reduce the material deformation caused by thermal stress, and help the machining of thin-walled or high-precision parts.

[0033] Specifically, the first mold body 1 further includes a third plate member 12 and a fourth plate member 13 bent and extended from both ends of the first plate member 11. The length directions of the third plate member 12 and the fourth plate member 13 are parallel to each other. The first plate member 11, the third plate member 12 and the fourth plate member 13 enclose a cavity for accommodating the second plate member 21. By placing the second plate member 21 in the cavity, it can ensure the tight fit between the first mold body 1 and the second mold body 2, thereby achieving a better glue injection and leakage-proof effect.

[0034] Specifically, both the first mold body 1 and the second mold body 2 are integrally formed. The integral structure can reduce the connection parts between components, thereby improving the stability and stiffness of the overall structure, helping the first mold body 1 and the second mold body 2 to be less likely to deform or be damaged during use, and thus prolonging their service life.

[0035] Specifically, the first groove body 22 penetrates through the end faces of the second plate member 21 close to and away from the first plate member 11 respectively. The aperture diameter of the end of the first groove body 22 away from the first plate member 11 is not less than that of the end of the first groove body 22 close to the first plate member 11. The design of different aperture diameters can be used to control the pressure and flow during the injection molding process. A higher injection pressure can be provided through the larger aperture diameter, while the smaller aperture diameter can limit the flow rate, which helps to achieve more precise injection control and improve the product quality.

[0036] Specifically, the hole body 3 includes a third groove body 32 and a second groove body 31 that penetrate through the first plate member 11 close to and away from the second plate member 21 respectively. The third groove body 32 is communicated with the second groove body 31. The third groove body 32 and the second groove body 31 are respectively used to cooperate with the second plate member 21 to introduce fluid and for fluid injection.

[0037] Specifically, the aperture diameter of the end of the third groove body 32 close to the second plate member 21 is larger than that of the end of the third groove body 32 away from the second plate member 21. The aperture diameter of the end of the third groove body 32 close to the second plate member 21 is not larger than that of the end of the first groove body 22 close to the first plate member 11. The larger aperture diameter at the end close to the second plate member 21 can provide a higher pressure, which is beneficial to the injection or transmission of fluid, while the smaller aperture diameter at the end away from the second plate member 21 can limit the pressure, which helps to control the fluid flow and pressure distribution.

[0038] Specifically, a protrusion 17 is provided at one end of the first plate member 11 away from the second plate member 21. The end of the second groove body 31 away from the second plate member 21 penetrates through the free end face of the protrusion 17. The protrusion 17 can ensure that when injecting the rubber material, the rubber material can fill to the bottom end of the mold, ensure the integrity of the molded part, avoid the occurrence of cavities or incomplete situations, reduce the generation of bubbles. At the same time, the protruding bottom end of the glue injection port makes it more convenient to clean the mold, can ensure that there is no glue residue at the bottom, and is also convenient for maintaining and servicing the mold.

[0039] Specifically, a second chamfer 23 is provided at one end of the second plate member 21 close to the first plate member 11. The second chamfer 23 is used to facilitate the introduction of the second plate member 21. The second chamfer 23 can prevent the second plate member 21 from colliding with the edge or other structures of the first plate member 11 during introduction. It can reduce the friction and resistance during the introduction process and make the introduction smoother.

[0040] Specifically, a first chamfer 14 is provided on the first plate member 11. The first chamfer 14 can effectively strengthen the overall strength of the first mold body 1 while cooperating with the second chamfer 23.

[0041] Specifically, a protrusion 15 and / or a groove 16 are provided on the first plate member 11. The protrusion 15 and / or the groove 16 are used for the positioning and alignment of the mold / the special shape structure of the injection molded part.

[0042] Specifically, the length dimension of the second plate member 21 is equal to the length dimension of the third plate member 12, so that when the first die body 1 and the second die body 2 are used in cooperation, they are limited up and down and are less likely to be separated.

[0043] Specifically, in other embodiments, a protrusion 24 is provided at one end of the second plate member 21 close to the first plate member 11. The shape of the protrusion 24 is approximately conical. A fourth groove 18 for accommodating the protrusion 24 is formed on the first plate member 11. The number of the protrusions 24 and the fourth grooves 18 is equal and at least two.

[0044] The above content is only the preferred embodiment of the present invention. For those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. The content of this specification should not be construed as a limitation to the present invention.

Claims

1. A leak-proof glue injection mold, comprising a first mold body (1) and a second mold body (2) used in conjunction with the first mold body (1); characterized in that: The first mold body (1) comprises a first plate (11), the first plate (11) being provided with a hole (3), the second mold body (2) comprises a second plate (21), the second plate (21) being provided with a first groove (22), the first groove (22) being connected to the hole (3) for injection of external colloid.

2. The anti-leakage glue injection mold according to claim 1, characterized in that: The first mold body (1) further comprises a third plate member (12) and a fourth plate member (13) formed by bending and extending from two ends of the first plate member (11); the length directions of the third plate member (12) and the fourth plate member (13) are parallel; the first plate member (11), the third plate member (12) and the fourth plate member (13) are surrounded to form a cavity for accommodating the second plate member (21).

3. The anti-leakage glue injection mold according to claim 1, characterized in that: The first mold body (1) and the second mold body (2) are both integrally formed.

4. The anti-leakage glue injection mold according to claim 1, characterized in that: The first groove body (22) respectively penetrates the end surface of the second plate member (21) close to and away from the first plate member (11), and the hole diameter of the end of the first groove body (22) away from the first plate member (11) is not smaller than the hole diameter of the end of the first groove body (22) close to the first plate member (11).

5. The anti-leakage glue injection mold according to claim 1, characterized in that: The hole body (3) comprises a third groove body (32) and a second groove body (31) which respectively penetrate the first plate member (11) and are close to and away from the second plate member (21); the third groove body (32) is in communication with the second groove body (31).

6. The anti-leakage glue injection mold according to claim 5, characterized in that: The aperture of an end of the third groove body (32) close to the second plate (21) is larger than the aperture of an end of the third groove body (32) away from the second plate (21), and the aperture of an end of the third groove body (32) close to the second plate (21) is not larger than the aperture of an end of the first groove body (22) close to the first plate (11).

7. The anti-leakage glue injection mold according to claim 1, characterized in that: A protrusion (17) is provided on one end of the first plate member (11) away from the second plate member (21), and one end of the second groove body (31) away from the second plate member (21) penetrates the free end surface of the protrusion (17).

8. The anti-leakage glue injection mold according to claim 1, characterized in that: A second chamfer (23) is provided at one end of the second plate member (21) close to the first plate member (11), and the second chamfer (23) is used to facilitate the introduction of the second plate member (21).

9. The anti-leakage glue injection mold according to claim 1, characterized in that: The first plate (11) is provided with a protrusion (15) and / or a groove (16), and the protrusion (15) and / or the groove (16) are used for positioning and aligning the mold / forming a special shape of the injection molded part.

10. The anti-leakage glue injection mold according to claim 2, characterized in that: The length dimension of the second plate member (21) is equal to the length dimension of the third plate member (12).

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