Nano-silver paste sintering sealing device

Abstract

The utility model relates to the field of nano-silver paste, and particularly discloses a nano-silver paste sintering and sealing device which comprises a placing sleeve, sealing bins are installed on the two sides of the placing sleeve, hydraulic pushing cylinders are installed on the outer sides of the sealing bins, sealing base plates are arranged in the sealing bins, and hydraulic rods are connected between the sealing base plates and the hydraulic pushing cylinders. A rubber mat clamping groove is formed in the outer side wall of the sealing base plate, a sealing rubber mat is arranged in the rubber mat clamping groove, a clamping groove is formed in the upper surface of the sintering base plate, an exhaust sleeve is installed on the upper surface of the containing sleeve, and an exhaust barrel is installed on the portion, located on the upper surface of the containing sleeve, of one side of the exhaust sleeve. The sealing rubber pads installed in the rubber pad clamping grooves in the sealing base plates integrally move in a limited mode along the interiors of the clamping grooves, the whole sealing rubber pads can be compressed, after the sealing base plates on the two sides make contact integrally, the sealing rubber pads at the two side ends are extruded, and therefore gaps formed after the sealing base plates are in butt joint are reduced, and the vacuum degree in the sintering space is controlled.

Description

Technical Field

[0001] The utility model relates to the field of nano silver paste, in particular to a nano silver paste sintering sealing device. Background Art

[0002] Nano silver paste is compatible with solder paste dispensing, printing processes and equipment, has low process temperature and high connection strength. Nano silver paste has excellent low-temperature sintering performance and is widely used in the printing industry. Its preparation technology has become one of the research hotspots in this field.

[0003] However, when the nano silver paste is sintered, it is difficult to achieve the desired sealing of the sintering space. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a nano silver paste sintering sealing device, which solves the problems mentioned in the above background.

[0005] The utility model provides the following technical solutions: a nano silver paste sintering sealing device, comprising a placing sleeve, sealing chambers are installed on both sides of the placing sleeve, a hydraulic push cylinder is installed on the outside of the sealing chamber, a sealing pad is arranged inside the sealing chamber, a hydraulic rod is connected between the sealing pad and the hydraulic push cylinder, a rubber pad groove is provided on the outer wall of the sealing pad, a closed rubber pad is arranged inside the rubber pad groove, a sintering pad is arranged inside the placing sleeve, a groove is provided on the upper surface of the sintering pad, an exhaust sleeve is installed on the upper surface of the placing sleeve, and an exhaust pipe is installed on one side of the exhaust sleeve located on the upper surface of the placing sleeve.

[0006] As a further solution of the utility model: a piston head is arranged inside the exhaust cylinder, a first one-way valve is arranged inside the piston head, and a second one-way valve is arranged between the exhaust cylinder and the placement sleeve.

[0007] As a further solution of the present invention: the second one-way valve includes: a sealing pad and a spring.

[0008] As a further solution of the utility model: a device placement seat is installed on the upper surface of the sintering pad.

[0009] As a further solution of the utility model: the exhaust sleeve and the exhaust pipe are both connected with the placement sleeve, and the sealing rubber pad is clamped with the rubber pad clamping groove.

[0010] As a further solution of the utility model: the sealing rubber pad is snap-connected with the slot.

[0011] As a further solution of the utility model: the piston head is movably connected to the exhaust pipe, and a push rod is installed above the piston head.

[0012] As a further solution of the utility model: the closing pad is fixedly connected to the spring.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The closed rubber pad installed in the rubber pad slot on the sealing pad plate moves along the internal limit of the slot as a whole, and the closed rubber pad will be compressed as a whole. When the sealing pads on both sides are in contact as a whole, the closed rubber pads on both side ends are squeezed, thereby reducing the gap after the sealing pads are connected.

[0015] The push rod as a whole drives the piston head to slide up and down reciprocatingly inside the exhaust pipe, and the sealing pad and spring inside the first one-way valve and the second one-way valve move together to extract the excess air in the internal cavity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a nano silver paste sintering sealing device;

[0017] Figure 2 A cross-sectional view of a sleeve placed in a nano silver paste sintering sealing device;

[0018] Figure 3 It is a structural schematic diagram of a sealing pad in a nano silver paste sintering sealing device;

[0019] Figure 4 It is a cross-sectional view of an exhaust pipe in a nano silver paste sintering sealing device.

[0020] In the figure: 1. placement sleeve; 2. sintering pad; 3. device placement seat; 4. slot; 5. sealing chamber; 6. exhaust sleeve; 7. exhaust pipe; 501. hydraulic push cylinder; 502. hydraulic rod; 503. sealing pad; 504. rubber pad slot; 505. closing rubber pad; 701. push rod; 702. piston head; 703. first one-way valve; 704. second one-way valve; 705. closing pad; 706. spring. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0022] like Figure 1-4As shown, this embodiment provides a nano silver paste sintering sealing device, including a placement sleeve 1, sealing chambers 5 are installed on both sides of the placement sleeve 1, a hydraulic push cylinder 501 is installed on the outside of the sealing chamber 5, a sealing pad 503 is arranged inside the sealing chamber 5, a hydraulic rod 502 is connected between the sealing pad 503 and the hydraulic push cylinder 501, a rubber pad slot 504 is provided on the outer wall of the sealing pad 503, a closed rubber pad 505 is arranged inside the rubber pad slot 504, and the closed rubber pad 505 is clamped with the rubber pad slot 504, a sintering pad 2 is arranged inside the placement sleeve 1, a clamping groove 4 is provided on the upper surface of the sintering pad 2, and the closed rubber pad 505 is clamped with the clamping groove 4, an exhaust sleeve 6 is installed on the upper surface of the placement sleeve 1, and an exhaust pipe 7 is installed on one side of the exhaust sleeve 6 located on the upper surface of the placement sleeve 1, and the exhaust sleeve 6 and the exhaust pipe 7 are both connected with the placement sleeve 1.

[0023] like Figure 2-3 As shown, in this embodiment, a piston head 702 is provided inside the exhaust cylinder 7, a push rod 701 is installed above the piston head 702, the piston head 702 is movably connected to the exhaust cylinder 7, a first one-way valve 703 is provided inside the piston head 702, a second one-way valve 704 is provided between the exhaust cylinder 7 and the placement sleeve 1, the second one-way valve 704 includes: a closing gasket 705, a spring 706, the closing gasket 705 is fixedly connected to the spring 706, and a device placement seat 3 is installed on the upper surface of the sintering pad 2.

[0024] The working principle of the utility model is as follows: when sintering treatment is required, after the space between the substrate to be sintered and the chip is filled with nano silver paste as a whole, the substrate is placed as a whole on the position of the device placement seat 3 above the sintering pad 2 for limiting, the sintering pad 2 is pushed as a whole toward the inside of the placement sleeve 1, the card slot 4 on the sintering pad 2 is controlled to correspond to the position of the sealing chamber 5 as a whole, and the hydraulic push cylinder 501 is driven to work, so that the hydraulic rod 502 as a whole pushes the sealing pad 503 toward the center position of the placement sleeve 1, and the sealing pad 505 installed in the rubber pad card slot 504 on the sealing pad 503 moves as a whole along the internal limit of the card slot 4, and the sealing pad 505 as a whole will be compressed. When the sealing pads 503 on both sides contact as a whole, After that, the sealing rubber pads 505 on both sides are squeezed, thereby reducing the gap after the sealing pad 503 is connected, so as to place the device seat 3 in a relatively closed environment, and then the push rod 701 as a whole drives the piston head 702 to slide up and down inside the exhaust pipe 7, when the piston head 702 moves downward, the first one-way valve 703 opens, and when the piston head 702 moves upward, the second one-way valve 704 opens. When the first one-way valve 703 and the second one-way valve 704 are in the open state, the sealing pad 705 will be moved in the direction away from the spring 706, and in the closed state, the spring 706 pulls the sealing pad 705 to reset, so that the exhaust pipe 7 can be used to extract the excess air in the internal cavity.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A nano silver paste sintering sealing device, comprising a placement sleeve (1), characterized in that: Sealing chambers (5) are installed on both sides of the placement sleeve (1), a hydraulic push cylinder (501) is installed on the outside of the sealing chamber (5), a sealing pad (503) is arranged inside the sealing chamber (5), a hydraulic rod (502) is connected between the sealing pad (503) and the hydraulic push cylinder (501), a rubber pad groove (504) is provided on the outer wall of the sealing pad (503), a sealing rubber pad (505) is arranged inside the rubber pad groove (504), a sintering pad (2) is arranged inside the placement sleeve (1), a groove (4) is provided on the upper surface of the sintering pad (2), an exhaust sleeve (6) is installed on the upper surface of the placement sleeve (1), and an exhaust pipe (7) is installed on one side of the exhaust sleeve (6) located on the upper surface of the placement sleeve (1).

2. A nano silver paste sintering sealing device according to claim 1, characterized in that: A piston head (702) is arranged inside the exhaust cylinder (7), a first one-way valve (703) is arranged inside the piston head (702), and a second one-way valve (704) is arranged between the exhaust cylinder (7) and the placement sleeve (1).

3. A nano silver paste sintering sealing device according to claim 2, characterized in that: The second one-way valve (704) comprises a sealing gasket (705) and a spring (706).

4. The nano silver paste sintering sealing device according to claim 1, characterized in that: A device placement seat (3) is mounted on the upper surface of the sintering pad (2).

5. The nano silver paste sintering sealing device according to claim 1, characterized in that: The exhaust sleeve (6) and the exhaust tube (7) are both connected to the placement sleeve (1), and the sealing rubber pad (505) is engaged with the rubber pad slot (504).

6. The nano silver paste sintering sealing device according to claim 1, characterized in that: The sealing rubber pad (505) is snap-fitted to the slot (4).

7. The nano silver paste sintering sealing device according to claim 2, characterized in that: The piston head (702) is movably connected to the exhaust cylinder (7), and a push rod (701) is installed above the piston head (702).

8. The nano silver paste sintering sealing device according to claim 3, characterized in that: The sealing pad (705) is fixedly connected to the spring (706).

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