Self-adapting pressure equalization closure device

Abstract

The utility model relates to sealing device technical field, concretely for adaptive pressure equalization sealing device, include: lift plate, heat seal knife, lift plate connection setting at hydraulic lever output end bottom, and lift plate bottom end connection is provided with heating element, lift plate bottom end connection is provided with heat insulation frame, and heat insulation frame wraps up heating element, and heat insulation frame back part is provided with the reserved hole of heating element wiring, and heat seal knife passes through the installation component and is arranged at heating element bottom, through the joint cooperation of heat conduction spare and heat seal knife trapezoidal groove, and combine the multiple fixed structures of I -beam, L -shaped support plate, limit ring and limit cover, can realize the quick installation and disassembly of heat seal knife, is convenient for the maintenance replacement of later period, drives lift plate movement through hydraulic lever, and both sides heat seal knife synchronously carries out synchronous heating pressfit to the braid and the two sides of carrier tape, avoids two sides indentation depth difference, realizes effective plastic package.

Description

Technical Field

[0001] This utility model relates to the field of sealing device technology, specifically an adaptive pressure equalization sealing device. Background Technology

[0002] In today's rapidly developing semiconductor industry, the types of chip pins are increasing at an unprecedented rate. From traditional through-hole pins to miniaturized surface-mount pins, and then to high-density QFP (Quad Flat Package) and BGA (Ball Grid Array) packages, various packaging types are constantly emerging, placing higher demands on the tape and reel packaging process in the back-end of semiconductor packaging. As the core equipment for realizing automated chip tape and reel packaging, the tape and reel machine, with its dual-sided pressure equalization sealing device, directly determines the sealing performance, flatness, and chip protection effect of the tape and reel package, making it a key component affecting packaging quality.

[0003] However, in the current technology, the double-sided pressure equalization sealing device relies on air pressure to achieve pressure equalization on both sides. It uses pressure equalization devices on both sides for heating and pressing. However, because the air pressure is unstable when pressing through the pressure equalization devices, the actual output pressure of the pressure equalization mechanism on both sides often deviates, making it impossible to maintain a continuous and stable pressure equalization state. This results in uneven indentation depth on both sides, thus failing to achieve the sealing effect. Improvement and optimization are needed. Utility Model Content

[0004] The purpose of this invention is to provide an adaptive pressure equalization sealing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adaptive pressure equalization sealing device, comprising: a lifting plate and a heat sealing knife, wherein the lifting plate is connected and disposed at the bottom of the hydraulic lever output end, and a heating element is connected and disposed at the bottom end of the lifting plate; a heat insulation frame is connected and disposed at the bottom end of the lifting plate, the heat insulation frame encloses the heating element, and a reserved hole for wiring the heating element is provided on the back of the heat insulation frame; the heat sealing knife is disposed at the bottom of the heating element through an installation component.

[0006] Preferably, the installation assembly includes a heat-conducting component, an exposed groove, an I-shaped plate, an L-shaped support plate, a limiting ring, and a limiting sleeve. Two heat-conducting components are symmetrically arranged and connected to the bottom wall of the heating component. Two exposed grooves are symmetrically opened at the bottom end of the heat insulation frame, and the heat-conducting components extend out of the bottom end of the exposed grooves.

[0007] Preferably, the heat-conducting component is trapezoidal, the heat-sealing knife is T-shaped, a trapezoidal groove is provided on the top of the heat-sealing knife, the heat-conducting component is snapped into the trapezoidal groove, an I-shaped plate is connected to the side wall of the heat-sealing knife, and an L-shaped support plate is provided at the side end of the heat-sealing knife.

[0008] Preferably, the L-shaped support plates are arranged in pairs, with the side walls of the two L-shaped support plates snapped together, and the bottom ends of the L-shaped support plates snapped into the grooves on both sides of the I-shaped plate. The bottom ends of the L-shaped support plates have slots that snap into the middle plate of the I-shaped plate.

[0009] Preferably, the top of the L-shaped support plate is provided with a semi-convex column, and the two semi-convex columns are combined to form a complete convex column. Both semi-convex columns are sleeved with a limiting ring.

[0010] Preferably, the side wall of the L-shaped support plate contacts the side wall of the heat insulation frame, and convex plates are symmetrically connected to the two side walls of the heat insulation frame. A knob screw is threadedly connected to the convex plate, and a limit sleeve is connected to the bottom end of the knob screw. The limit sleeve is sleeved with a complete convex column composed of two semi-convex columns.

[0011] Compared with the prior art, the beneficial effects of this utility model are: By engaging the heat-conducting component with the trapezoidal groove of the heat-sealing knife, and combining the multiple fixing structures of the I-shaped plate, L-shaped support plate, limiting ring, and limiting sleeve, the heat-sealing knife can be quickly installed and disassembled, facilitating later maintenance and replacement. The lifting plate is driven by the hydraulic lever, and the heat-sealing knives on both sides simultaneously heat and press the braided tape and carrier tape, avoiding uneven pressure marks on both sides and achieving effective sealing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the connection of the heat insulation frame structure of this utility model; Figure 3 This utility model Figure 2 A magnified view of a portion of the image; Figure 4 This is a schematic diagram of the structure of this utility model.

[0013] In the diagram: 1. Lifting plate; 2. Heating element; 3. Heat sealing knife; 4. Heat insulation frame; 5. Heat conducting element; 6. Exposed groove; 7. Trapezoidal groove; 8. I-shaped plate; 9. L-shaped support plate; 10. Slot; 11. Semi-convex column; 12. Limiting ring; 13. Convex plate; 14. Knob screw; 15. Limiting sleeve. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0015] Please see Figures 1-4 This utility model provides a technical solution: an adaptive pressure equalization sealing device, including: a lifting plate 1 and a heat sealing knife 3. The lifting plate 1 is connected to the bottom of the hydraulic rod output end, and a heating element 2 is connected to the bottom end of the lifting plate 1. A heat insulation frame 4 is connected to the bottom end of the lifting plate 1, and the heat insulation frame 4 wraps around the heating element 2. A reserved hole for wiring of the heating element 2 is opened on the back of the heat insulation frame 4. The heat sealing knife 3 is set at the bottom of the heating element 2 through an installation component.

[0016] A hydraulic lever is used as the drive source. The output end of the hydraulic lever drives the lifting plate 1 to move up and down reciprocally, which in turn drives the heating element 2, the heat insulation frame 4 and the heat sealing knife 3 connected to the lifting plate 1 to move up and down synchronously. This enables the heat sealing knife 3 to contact and separate from the tape and carrier tape. The heating element is wrapped with a heat insulation frame, which can reduce heat loss from the heating element, improve heat utilization efficiency and ensure the temperature stability of the heat sealing knife. On the other hand, it can prevent heat from being conducted to the lifting plate and hydraulic lever, protect the drive components and extend the service life of the device.

[0017] Two heat-conducting components 5 are symmetrically arranged in the installation assembly. The heat-conducting components 5 are connected and set on the bottom wall of the heating component 2. Two exposed grooves 6 are symmetrically opened at the bottom end of the heat insulation frame 4, and the heat-conducting components 5 extend out of the bottom end of the exposed grooves 6.

[0018] When the heating element 2 is powered on, it generates heat. Since the heating element 2 is wrapped by the heat insulation frame 4, the heat is mainly transferred to the heat sealing knife 3 through the heat conducting element 5 at the bottom.

[0019] The heat-conducting component 5 is trapezoidal, the heat-sealing knife 3 is T-shaped, the top of the heat-sealing knife 3 has a trapezoidal groove 7, the heat-conducting component 5 is snapped into the trapezoidal groove 7, an I-shaped plate 8 is connected to the side wall of the heat-sealing knife 3, and an L-shaped support plate 9 is provided at the side end of the heat-sealing knife 3.

[0020] The heat-conducting component 5 and the heat-sealing knife 3 are engaged by the trapezoidal groove 7, which has a large contact area and a tight connection, ensuring that heat is transferred evenly and efficiently to the heat-sealing knife 3, so that the temperature of the heat-sealing knife 3 is stable and meets the heating requirements for plastic sealing.

[0021] The L-shaped support plates 9 are arranged in pairs, with the side walls of the two L-shaped support plates 9 being snapped together. The bottom ends of the L-shaped support plates 9 are snapped into the grooves on both sides of the I-shaped plate 8. The bottom ends of the L-shaped support plates 9 are provided with slots 10, which are snapped into the middle plate of the I-shaped plate 8.

[0022] The interlocking structure of the I-shaped plate 8 and the L-shaped support plate 9 provides lateral fixation for the heat sealing knife 3, preventing it from shifting left or right. At the same time, the two L-shaped support plates 9 clamp the heat sealing knife 3, preventing personnel from directly touching the heat sealing knife 3 with their hands during disassembly and assembly, thus avoiding the potential risk of burns.

[0023] The top of the L-shaped support plate 9 is connected to a semi-convex column 11. The two semi-convex columns 11 are combined to form a complete convex column. Both semi-convex columns 11 are sleeved with a limiting ring 12.

[0024] The cooperation between the two semi-protruding pillars 11 and the limiting ring 12 can prevent the L-shaped support plate 9 from separating, further strengthen the fixation, and facilitate stable clamping and handling of the heat sealing knife 3.

[0025] The side wall of the L-shaped support plate 9 contacts the side wall of the heat insulation frame 4. The two side walls of the heat insulation frame 4 are symmetrically connected with protruding plates 13. The protruding plates 13 are threadedly connected with knob screws 14. The bottom end of the knob screws 14 is connected with a limit sleeve 15. The limit sleeve 15 is sleeved with the complete protruding column consisting of two semi-protruding columns 11.

[0026] The knob screw 14 on the protruding plate 13 can drive the limiting sleeve 15 to move up and down. The limiting sleeve 15 fixes the position of the two L-shaped support plates 9 through the sleeve relationship with the complete protruding post, thereby fixing the position of the heat sealing knife 3.

[0027] Working principle: The slots 10 at the bottom of the two L-shaped support plates 9 are engaged with the middle plate of the I-shaped plate 8, and the side walls of the two L-shaped support plates 9 are engaged with each other. At this time, the two semi-protruding pillars 11 combine to form a complete pillar. The limiting ring 12 is sleeved on the complete pillar formed by the two semi-protruding pillars 11, thereby fixing the relative position of the two L-shaped support plates 9. This allows the two L-shaped support plates 9 to clamp the I-shaped plate 8, enabling the heat sealing knife 3 to be moved. This avoids personnel directly touching the heat sealing knife 3 during disassembly and assembly, avoiding the potential risk of burns. The trapezoidal groove 7 at the top of the heat sealing knife 3 is engaged with the heat-conducting component 5, completing the initial positioning of the heat sealing knife 3. At the same time, the side wall of the L-shaped support plate 9 contacts the side wall of the heat insulation frame 4. After the complete pillar formed by the two semi-protruding pillars 11 moves below the limiting sleeve 15, the knob screw 14 is rotated to control the limiting sleeve 15 to move downward and engage with the complete pillar formed by the two semi-protruding pillars 11, thereby fixing the two L-shaped support plates 9 and the heat sealing knife 8. The position of the support plate 9 is further fixed to the position of the heat sealing knife 3, and the installation is completed. During operation, the hydraulic lever drives the lifting plate 1 to descend, which brings the heat sealing knife 3 closer to the braided tape and the carrier tape. The heat generated by the heating element 2 is transferred to the heat sealing knife 3 through the heat conducting element 5. The heat sealing knives on both sides simultaneously heat and press the braided tape and the carrier tape, avoiding uneven pressure marks on both sides and achieving effective sealing.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adaptive pressure equalization sealing device, comprising: Lifting plate (1) and heat sealing knife (3). The lifting plate (1) is connected and installed at the bottom of the hydraulic rod output end. A heating element (2) is connected and installed at the bottom of the lifting plate (1). The feature is that: a heat insulation frame (4) is connected to the bottom end of the lifting plate (1), the heat insulation frame (4) wraps around the heating element (2), a reserved hole for wiring of the heating element (2) is opened on the back of the heat insulation frame (4), and the heat sealing knife (3) is set at the bottom of the heating element (2) through the installation component.

2. The adaptive pressure equalization sealing device according to claim 1, characterized in that: The installation assembly includes a heat-conducting component (5), an exposed groove (6), an I-shaped plate (8), an L-shaped support plate (9), a limiting ring (12), and a limiting sleeve (15). Two heat-conducting components (5) are symmetrically arranged. The heat-conducting components (5) are connected and arranged on the bottom wall of the heating component (2). Two exposed grooves (6) are symmetrically opened at the bottom end of the heat insulation frame (4). The heat-conducting components (5) extend out of the bottom end of the exposed grooves (6).

3. The adaptive pressure equalization sealing device according to claim 2, characterized in that: The heat-conducting component (5) is trapezoidal, the heat-sealing knife (3) is T-shaped, the top of the heat-sealing knife (3) is provided with a trapezoidal groove (7), the heat-conducting component (5) is snapped into the trapezoidal groove (7), an I-shaped plate (8) is connected to the side wall of the heat-sealing knife (3), and an L-shaped support plate (9) is provided at the side end of the heat-sealing knife (3).

4. The adaptive pressure equalization sealing device according to claim 3, characterized in that: The L-shaped support plate (9) is in pairs. The two L-shaped support plates (9) are snapped together on the side walls. The bottom end of the L-shaped support plate (9) is snapped into the grooves on both sides of the I-shaped plate (8). The bottom end of the L-shaped support plate (9) is provided with a slot (10), which is snapped into the middle plate of the I-shaped plate (8).

5. The adaptive pressure equalization sealing device according to claim 4, characterized in that: The top of the L-shaped support plate (9) is connected to a semi-convex column (11), and the two semi-convex columns (11) are combined to form a complete convex column. Both semi-convex columns (11) are sleeved with a limiting ring (12).

6. The adaptive pressure equalization sealing device according to claim 5, characterized in that: The side wall of the L-shaped support plate (9) is in contact with the side wall of the heat insulation frame (4). The two side walls of the heat insulation frame (4) are symmetrically connected with protruding plates (13). A knob screw (14) is threadedly connected to the protruding plate (13). A limit sleeve (15) is connected to the bottom end of the knob screw (14). The limit sleeve (15) is connected to the complete protruding column of the two semi-protruding columns (11).

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