Hollow insert secondary rubber coating mold structure

Abstract

The utility model provides a secondary rubber coating mold structure for a hollow insert, and relates to the technical field of mold structures. Comprising an upper die and a lower die which are matched with each other, and further comprises an air blowing device, a cavity suitable for installing a hollow insert with an inner channel is formed between the upper die and the lower die, and movable positioning pieces are arranged on the two sides of the cavity. The movable positioning piece is suitable for moving towards an inner channel of the hollow insert during mold closing so as to be positioned and attached to the two sides of the inner channel of the hollow insert, and retreats from the inner channel after mold opening; the blowing device is suitable for being communicated with the inner channel of the hollow insert so that nitrogen can be blown into the inner channel of the hollow insert through the blowing component after the mold cavity is filled with molten plastic. According to the scheme, the mode that the copper pin water channel is fixedly connected with the hollow insert is provided, the problems of later welding treatment and corresponding poor welding are avoided, the working procedure is simplified, and the product quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold structures, in particular to a hollow insert secondary encapsulation mold structure. Background Art

[0002] At present, the middle section of the copper pin water channel is welded together by welding technology after the water channel body and the welding plate are separately injection molded to achieve the sealing of the middle section of the copper pin water channel. On the one hand, this process has one more post-welding treatment process than general injection molded products, and on the other hand, the finished product after welding occasionally has poor welding and there is a risk of water leakage. This has become a technical difficulty in the hollow plastic molding of copper pin water channels. Utility Model Content

[0003] In view of this, the purpose of the present invention is to provide a hollow insert secondary encapsulation mold structure to solve the above problems.

[0004] The utility model adopts the following scheme: the application provides a secondary encapsulation mold structure for a hollow insert, comprising an upper mold and a lower mold that match each other, and also comprising an air blowing device, wherein a cavity suitable for installing a hollow insert having an inner channel is formed between the upper mold and the lower mold, and movable positioning members are arranged on both sides of the cavity, and the movable positioning members are suitable for being displaced toward the inner channel of the hollow insert when the mold is closed to position and fit on both sides of the inner channel of the hollow insert, and withdrawing from the inner channel after the mold is opened; the air blowing device is suitable for being connected to the inner channel of the hollow insert so that after the molten plastic fills the cavity, nitrogen is blown into the inner channel of the hollow insert through the air blowing device.

[0005] Furthermore, the movable positioning member is connected to a linkage mechanism, and the linkage mechanism is configured to drive the movable positioning member to move toward the inner channel of the hollow insert during the mold closing process of the upper mold and the lower mold to position and fit on both sides of the inner channel of the hollow insert.

[0006] Furthermore, the linkage mechanism comprises a push rod arranged on the lower mold, and the push rod is suitable for being displaced toward the movable positioning member during the mold closing process to drive the movable positioning member to move.

[0007] Furthermore, the movable positioning member is provided with a first inclined surface, and the linkage mechanism is provided with a second inclined surface matching with the first inclined surface.

[0008] Furthermore, two push rods are provided, each connected to one of the movable positioning members.

[0009] Furthermore, the blowing device is connected to a middle position of the hollow insert.

[0010] Furthermore, the blowing device is configured to blow nitrogen into the inner channel of the hollow insert to prevent the inner channel of the hollow insert from collapsing during cavity injection molding.

[0011] Furthermore, the hollow insert is configured to be placed in the cavity before mold closing.

[0012] Beneficial effects:

[0013] This solution realizes the integrated molding of the middle section of the copper pin water channel through the above-mentioned mold structure and action, avoiding the problems of subsequent welding processing and corresponding poor welding, simplifying the process and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of a hollow insert secondary encapsulation mold structure after mold closing in an embodiment of the utility model;

[0015] Figure 2 It is another cross-sectional schematic diagram of a hollow insert secondary encapsulation mold structure after mold closing in an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of a hollow insert secondary encapsulation mold structure after mold opening in an embodiment of the utility model;

[0017] Figure 4 It is a cross-sectional schematic diagram of a hollow insert of a hollow insert secondary encapsulation mold structure according to an embodiment of the utility model;

[0018] Figure 5 It is a cross-sectional schematic diagram of a copper tube foot water channel of a hollow insert secondary encapsulation mold structure according to an embodiment of the utility model;

[0019] Figure 6 It is a partial schematic diagram of a hollow insert secondary encapsulation mold structure of an embodiment of the utility model when a movable positioning member cooperates with the hollow insert;

[0020] Figure numerals: 10 - hollow insert, 11 - inner channel, 20 - cavity, 30 - movable positioning member, 40 - linkage mechanism, 50 - blowing device, 60 - upper mold, 70 - lower mold, 80 - copper tube foot water channel. DETAILED DESCRIPTION

[0021] Combination Figures 1 to 6As shown, this embodiment provides a secondary encapsulation mold structure for a hollow insert, including an upper mold 60 and a lower mold 70 that match each other, and also includes a blowing device 50, wherein a cavity 20 suitable for installing a hollow insert 10 having an inner channel 11 is formed between the upper mold 60 and the lower mold 70, and movable positioning members 30 are arranged on both sides of the cavity 20, and the movable positioning members 30 are suitable for moving toward the inner channel 11 of the hollow insert 10 during mold closing to position and fit on both sides of the inner channel 11 of the hollow insert 10, and withdraw from the inner channel 11 after mold opening; the blowing device 50 is suitable for being connected to the inner channel 11 of the hollow insert 10 so that after the molten plastic fills the cavity 20, nitrogen is blown into the inner channel 11 of the hollow insert 10 through the blowing device.

[0022] Combination Figures 4 to 5 As shown, in this embodiment, the hollow insert 10 is provided with an inner channel 11 with openings at both ends. Injection molding is required on the outside of the hollow insert 10 to connect the hollow insert 10 with the copper pin water channel 80 by injection molding. The copper pin water channel 80 is fixed on the upper mold 60. When the mold is closed, the copper pin water channel 80 is connected to the hollow insert 10.

[0023] Combination Figures 1 to 6 As shown, the movable positioning member 30 is connected to a linkage mechanism 40, and the linkage mechanism 40 is configured to drive the movable positioning member 30 to move toward the inner channel 11 of the hollow insert 10 during the mold closing process of the upper mold 60 and the lower mold 70 so as to be positioned and fit on both sides of the inner channel 11 of the hollow insert 10. Here, the linkage mechanism 40 includes two ejector rods arranged on the lower mold 70, and each ejector rod is suitable for moving toward the movable positioning member 30 during the mold closing process to drive the movable positioning member 30 to move. The movable positioning member 30 is provided with a first inclined surface, and the linkage mechanism 40 is provided with a second inclined surface matched with the first inclined surface. The movable positioning member 30 is displaced by the matching of the inclined surfaces.

[0024] The blowing device 50 is an existing device, and its air outlet can be connected to the middle position of the hollow insert 10, and blows toward both ends of the inner channel 11 to blow nitrogen into the inner channel 11 of the hollow insert 10, so as to prevent the inner channel 11 of the hollow insert 10 from collapsing during injection molding of the cavity 20. At the same time, when opening the mold, the movable positioning member 30 can also be blown out of the inner channel 11 by the blowing device 50, so as to facilitate mold opening.

[0025] During injection molding, before mold closing, the hollow insert 10 is placed in the mold cavity 20;

[0026] When the mold is closed, the movable positioning member 30 is driven by the linkage mechanism 40 to be positioned and fitted with both sides of the inner channel 11 of the hollow insert 10, and then after the molten plastic fills the cavity 20, nitrogen is blown into the inner channel 11 of the hollow insert 10 through the blowing member to prevent the inner channel 11 of the hollow insert 10 from collapsing;

[0027] When the mold is opened, the movable positioning member 30 is separated from the inner channel 11 of the hollow insert 10, so as to facilitate demoulding.

[0028] This embodiment realizes the integrated molding of the middle section of the copper pin water channel 80 through the above-mentioned mold structure and action, thereby avoiding the problems of subsequent welding processing and corresponding poor welding, simplifying the process and improving product quality.

[0029] It should be understood that the above are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions under the concept of the present utility model belong to the protection scope of the present utility model.

[0030] The above description of the drawings used in the implementation manner only shows certain embodiments of the utility model and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

Claims

1. A hollow insert secondary encapsulation mold structure, comprising an upper mold and a lower mold that match each other, characterized in that: It also includes a blowing device, wherein a cavity suitable for installing a hollow insert with an inner channel is formed between the upper mold and the lower mold, and movable positioning members are arranged on both sides of the cavity, and the movable positioning members are suitable for moving toward the inner channel of the hollow insert when the mold is closed to position and fit on both sides of the inner channel of the hollow insert, and withdrawing from the inner channel after the mold is opened; the blowing device is suitable for being connected to the inner channel of the hollow insert so that nitrogen can be blown into the inner channel of the hollow insert through the blowing device after the molten plastic fills the cavity.

2. The hollow insert secondary encapsulation mold structure according to claim 1, characterized in that: The movable positioning member is connected with a linkage mechanism, and the linkage mechanism is configured to drive the movable positioning member to move toward the inner channel of the hollow insert during the mold closing process of the upper mold and the lower mold so as to be positioned and fitted on both sides of the inner channel of the hollow insert.

3. The hollow insert secondary encapsulation mold structure according to claim 2, characterized in that: The linkage mechanism comprises a push rod arranged on the lower mold, and the push rod is suitable for moving toward the movable positioning member during the mold closing process to drive the movable positioning member to move.

4. The hollow insert secondary encapsulation mold structure according to claim 3, characterized in that: The movable positioning member is provided with a first inclined surface, and the linkage mechanism is provided with a second inclined surface matched with the first inclined surface.

5. The hollow insert secondary encapsulation mold structure according to claim 3, characterized in that: The push rods are provided with two, each connected to one of the movable positioning members.

6. The hollow insert secondary encapsulation mold structure according to claim 1, characterized in that: The blowing device is connected to the middle position of the hollow insert.

7. The hollow insert secondary encapsulation mold structure according to claim 6, characterized in that: The blowing device is configured to blow nitrogen into the inner channel of the hollow insert to prevent the inner channel of the hollow insert from collapsing during cavity injection molding.

8. The hollow insert secondary encapsulation mold structure according to claim 1, characterized in that: The hollow insert is configured to be placed into the cavity before mold closing.

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