Upper soldering iron for package testing machine

Abstract

The utility model discloses an upper soldering iron for a package testing machine, which is characterized in that the upper soldering iron comprises a mounting part and a heat sealing part, and the bottom of the heat sealing part is provided with two heat sealing press strips which are arranged in parallel; a mounting groove is formed in the bottom of the mounting part, the top of the heat sealing part is detachably mounted in the mounting groove, the top of the heat sealing part is tightly matched with the mounting groove, and the bottom plane of the heat sealing pressing strip is arranged below the bottom plane of the mounting part. The maintenance and replacement cost is reduced.

Description

Technical Field

[0001] This utility model relates to a package testing machine, and more particularly to a soldering iron used in a package testing machine. Background Technology

[0002] Surface mount components (SMTs) generally refer to the package form of surface mount electronic components. SMT packaging is a type of semiconductor device packaging. SMTs, especially smaller electronic components requiring tape-and-film packaging protection, undergo testing after production using equipment such as testing machines. After testing, the qualified products are loaded onto a tape, and then the upper film (upper adhesive tape) and lower film (carrier tape) of the tape are heat-sealed using a soldering iron, thus encapsulating the product within the tape and protecting it. In existing technology, during the product (taking SMTs as an example) packaging process, the product is sequentially placed on the lower film 102 of the tape 101, and then the upper film 103 covers the lower film containing the SMT. Figure 1 As shown, the traction device pulls the material strip backward. During the backward movement, a soldering iron 104 is placed above the material strip. By pressing down with the soldering iron, the two sides of the contact point between the upper film and the lower film are heat-sealed, thereby achieving heat sealing of the material strip. The upper film is an adhesive strip with adhesive layers on both sides of the bottom surface. Through hot pressing, the adhesive layers and the lower film are thermally bonded together.

[0003] However, in actual use, the soldering iron is driven by rotation, utilizing a combination of electromagnets, tension springs, and cylinders. During rotation, the rear bottom surface of the soldering iron contacts the material strip first, followed by other parts of the soldering iron. The bottom of the soldering iron has two heat-sealing strips. The contact points between the rear ends of these strips and the material strip experience greater pressure, making these areas prone to wear and affecting the heat-sealing effect. Therefore, they need to be replaced. However, this method has the following drawbacks: the heat-sealing strips and the soldering iron are an integrated structure (e.g., application number "202320858244.8", patent name "A Soldering Iron for Heat Sealing Material Strip and Its Installation Structure", which is an integrated structure using a rotational heat-sealing method). Replacement requires replacing the entire unit, increasing costs. Summary of the Invention

[0004] The purpose of this invention is to provide a soldering iron for a packaging testing machine. By using this structure, costs can be effectively reduced.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a soldering iron for a packaging testing machine, comprising an mounting part and a heat sealing part, wherein the bottom of the heat sealing part is provided with two parallel heat sealing strips;

[0006] The bottom of the mounting part is provided with a mounting groove, the top of the heat sealing part is detachably installed in the mounting groove, and the top of the heat sealing part is tightly fitted with the mounting groove. The bottom plane of the heat sealing strip is located below the bottom plane of the mounting part.

[0007] In the above technical solution, the mounting groove extends from front to back, and the two ends of the mounting groove are respectively connected to the front end face and the rear end face of the mounting part;

[0008] The front and rear faces of the heat-sealing part are respectively flush with the front and rear faces of the mounting groove.

[0009] In the above technical solution, the heat-sealing part includes a connecting part and heat-sealing strips symmetrically arranged on both sides of the bottom of the connecting part. The connecting part and the heat-sealing strips on both sides form a U-shaped structure with a downward opening.

[0010] The connecting part and the upper part of the heat-sealing strip are installed in the mounting groove, and the outer side wall of the connecting part and the heat-sealing strip is tightly fitted with the mounting groove.

[0011] In the above technical solution, the top two sides of the mounting groove are respectively provided with slots extending to both sides, and the bottom two sides of the heat sealing part are respectively provided with strips extending to both sides. Each strip is engaged in a slot and is tightly fitted with the slot.

[0012] In the above technical solution, the cross-section of the card slot and card strip is an arc-shaped structure.

[0013] In the above technical solution, two limiting members are symmetrically installed on the bottom surface of the mounting part on both sides of the mounting groove. The inner sidewalls of the two limiting members are flush with the inner sidewalls on both sides of the mounting groove, and the bottom plane of the limiting members is located above the bottom plane of the heat sealing strip.

[0014] In the above technical solution, there is a gap between the outer wall of the limiting member and the outer wall of the mounting part;

[0015] The outer side wall of the limiting member is inclined inward from top to bottom.

[0016] In the above technical solution, the limiting member and the mounting part are an integral structure.

[0017] In the above technical solution, the bottom surface of the heat-sealing strip is the heat-sealing surface.

[0018] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0019] 1. The soldering iron in this utility model adopts a split structure of mounting part and heat sealing part. The heat sealing strip is set on the bottom surface of the heat sealing part. In this way, if the heat sealing strip at the bottom of the heat sealing part is worn, only the heat sealing part needs to be replaced, which can reduce maintenance and replacement costs.

[0020] 2. In this utility model, the heat-sealing part is inserted into the mounting groove of the mounting part and a tight fit is adopted, which makes installation and disassembly convenient and quick, and improves the convenience of maintenance and replacement. Attached Figure Description

[0021] Figure 1 This is a structural diagram from the background technology;

[0022] Figure 2 This is a schematic diagram of the structure in Embodiment 1 of this utility model;

[0023] Figure 3 yes Figure 2 A schematic diagram of the three-dimensional structure;

[0024] Figure 4 This is an exploded view of Embodiment 1 of this utility model;

[0025] Figure 5 yes Figure 4 A magnified view of a portion of the image;

[0026] Figure 6 This is a schematic diagram of the mounting structure of the soldering iron in Embodiment 1 of this utility model.

[0027] The components are: 1. Mounting section; 2. Heat sealing section; 3. Heat sealing strip; 4. Mounting groove; 5. Bracket; 6. Coupling; 7. Frame; 8. Swing arm; 9. Connecting section; 10. Slot; 11. Clip; 12. Limiting component; 101. Material strip; 102. Lower film; 103. Upper film; 104. Soldering iron. Detailed Implementation

[0028] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0029] Example 1: See Figures 2-6 As shown, a soldering iron for a package testing machine includes a mounting part 1 and a heat sealing part 2. The bottom of the heat sealing part 2 is provided with two parallel heat sealing strips 3.

[0030] The bottom of the mounting part is provided with a mounting groove 4, the top of the heat sealing part 2 is detachably installed in the mounting groove 4, and the top of the heat sealing part 2 is tightly fitted with the mounting groove 4. The bottom plane of the heat sealing strip 3 is located below the bottom plane of the mounting part 1.

[0031] In this embodiment, the bottom surface of the heat-sealing strip is the heat-sealing surface. During actual operation, the upper soldering iron is driven to rotate by a drive mechanism. The rotation of the upper soldering iron causes the heat-sealing strip to press onto the material strip, applying heat pressure. The middle of the material strip passes between two heat-sealing strips, and the heat-sealing surfaces at the bottom of the two heat-sealing strips respectively heat-seal both sides of the material strip. In this utility model, one structure is taken as an example: See [link to example]. Figure 6 As shown, the top rear end of the mounting part 1 on the upper soldering iron is mounted on a bracket 5. The rear end of the mounting part 1 is connected to the bracket 5. The bracket 5 is rotatably mounted on a frame 7 via a connecting shaft 6. The rear end of the bracket 5 is connected to one end of the connecting shaft 6, and the other end of the connecting shaft 6 is connected to a swing arm 8. The rear end of the swing arm 8 is connected to the connecting shaft 6, and the front end of the swing arm is connected to a driving component (the driving component is a cylinder or other mechanism). The driving component drives the front end of the swing arm to rotate up and down, thereby driving the connecting shaft to rotate. When the connecting shaft rotates, it drives the bracket to rotate, thereby driving the upper soldering iron to rotate as well, so that the heat sealing strip heat seals the material strip.

[0032] In this embodiment, the heat-sealing strip heat-seales the material strip at high temperatures and is constantly in contact with the strip during heat sealing. After prolonged use, the heat-sealing strip will wear down, especially at the rear bottom. Therefore, to ensure its heat-sealing stability, it needs to be replaced radially. In this embodiment, the mounting part and the heat-sealing part adopt a separate structure, which is detachably connected by a mounting groove. The heat-sealing part and the mounting groove fit tightly together, which facilitates installation and disassembly and ensures the stability of installation and use. If the heat-sealing strip wears down, it is only necessary to remove the heat-sealing part from the mounting groove and replace it with a new one, without replacing the entire soldering iron, thus reducing maintenance and replacement costs. Furthermore, this embodiment uses a tight fit instead of a bolt connection, mainly because using bolts to connect the heat-sealing part and the mounting part will result in uneven indentations (uneven indentations on the material strip) and angle changes.

[0033] See Figure 2 , 4 As shown, the mounting groove 4 extends from front to back, and the two ends of the mounting groove 4 are respectively connected to the front end face and the rear end face of the mounting part 1.

[0034] The front and rear faces of the heat-sealing part 2 are flush with the front and rear faces of the mounting groove 4, respectively. The rear end of the mounting part is connected to the bracket, thereby driving the bracket and the soldering iron to rotate through the driving component, thus achieving heat sealing of the material strip.

[0035] See Figures 2-5 As shown, the heat-sealing part 2 includes a connecting part 9 and heat-sealing strips 3 symmetrically arranged on both sides of the bottom of the connecting part 9. The connecting part 9 and the heat-sealing strips 3 on both sides form a U-shaped structure with downward opening.

[0036] The connecting part 9 and the heat-sealing strip 3 are installed in the mounting groove 4, and the outer side wall of the connecting part 9 and the heat-sealing strip 3 is tightly fitted with the mounting groove 4.

[0037] In this embodiment, the material strip passes under the heat-sealing section. The material strip between the heat-sealing strips on both sides contains the product that needs to be heat-sealed. The material strip below the heat-sealing strips on both sides is the heat-sealing area. The bottom surface of the heat-sealing strip is below the bottom surface of the mounting section. When the upper soldering iron moves down and contacts the material strip, only the heat-sealing strip and the material strip are in contact, thereby achieving heat sealing on both sides of the material strip.

[0038] See Figure 2 , 5 As shown, the top two sides of the mounting groove 4 are respectively provided with slots 10 extending to both sides, and the bottom two sides of the heat sealing part 2 are respectively provided with strips 11 extending to both sides. Each strip 11 is locked in a slot 10, and the strip 11 and the slot 10 are tightly fitted.

[0039] The retaining strips are located on the top left and right sides of the connecting part. The retaining strips and the connecting part are an integral structure, and the connecting part and the heat sealing strip are also an integral structure. In this embodiment, the heat sealing part and the mounting groove are tightly fitted. In order to ensure that the heat sealing part will not detach from the mounting groove during the up and down movement of the upper soldering iron, the retaining strips and the retaining groove are used. This can restrict the heat sealing part from moving downward relative to the mounting part and detaching from the mounting part, ensuring the installation firmness of the mounting part and the heat sealing part, and ensuring the stability and safety of the upper soldering iron during use.

[0040] See Figure 2 , 5 As shown, the cross-section of the slot 10 and the strip 11 is an arc-shaped structure. The arc-shaped structure facilitates the installation and disassembly of the mounting part and the heat-sealing part, making it easier to insert the heat-sealing part into the mounting slot and ensuring the ease of disassembly. At the same time, it also facilitates the processing of the mounting slot.

[0041] See Figures 2-5 As shown, two limiting members 12 are symmetrically installed on the bottom surface of the mounting part 1 on both sides of the mounting groove 4. The inner sidewalls of the two limiting members 12 are respectively flush with the inner sidewalls on both sides of the mounting groove 4, and the bottom plane of the limiting member 12 is located above the bottom plane of the heat sealing strip 3.

[0042] There is a gap between the outer wall of the limiting member 12 and the outer wall of the mounting part 1.

[0043] In this embodiment, the use of limiting strips reduces the material required for the entire mounting section and increases the contact area between the mounting section and the heat-sealing section, thereby ensuring a tight fit between them. Furthermore, the outer wall of the limiting member and the outer wall of the mounting section have a gap, allowing the limiting member to be thinner and possessing a certain degree of elastic deformation capability. Initially, the distance between the limiting members on both sides can be slightly less than the thickness of the heat-sealing section. When the heat-sealing section is inserted into the mounting groove, the limiting member can be slightly pushed outward, causing it to deform slightly. This slight deformation capability of the limiting member tightly confines the heat-sealing section within the mounting groove, achieving a tight fit between the heat-sealing section and the mounting section.

[0044] See Figure 2 , 5 As shown, the outer wall of the limiting member 12 is inclined inward from top to bottom. The outer wall of the limiting member is a slope, which makes the limiting member form a right trapezoid or triangular structure with good strength. After slight deformation, it also has the ability to recover its deformation inward, so that the limiting member tightly limits the heat-sealing part in the mounting groove, ensuring the firmness and stability of the installation of the heat-sealing part and the mounting part.

[0045] The limiting member 12 and the mounting part 1 are integrally formed. Both the mounting part and the heat sealing part are made of metal. The mounting part and the heat sealing part can be integrally manufactured by casting and then machined, or they can be directly machined from a single piece of metal.

[0046] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. In the description of the invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0047] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. For instance, the two components can be mechanically connected by contact or abutting; they can also be directly hooked or connected by an intermediate medium; or they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

Claims

1. A soldering iron for a package testing machine, characterized in that: It includes an installation part and a heat sealing part, wherein the bottom of the heat sealing part is provided with two heat sealing strips arranged in parallel to each other; The bottom of the mounting part is provided with a mounting groove, the top of the heat sealing part is detachably installed in the mounting groove, and the top of the heat sealing part is tightly fitted with the mounting groove. The bottom plane of the heat sealing strip is located below the bottom plane of the mounting part.

2. The soldering iron for the packaging testing machine according to claim 1, characterized in that: The mounting groove extends from front to back, and its two ends are respectively connected to the front end face and the rear end face of the mounting part. The front and rear faces of the heat-sealing part are respectively flush with the front and rear faces of the mounting groove.

3. The soldering iron for the packaging testing machine according to claim 1, characterized in that: The heat-sealing part includes a connecting part and heat-sealing strips symmetrically arranged on both sides of the bottom of the connecting part. The connecting part and the heat-sealing strips on both sides form a U-shaped structure with a downward opening. The connecting part and the upper part of the heat-sealing strip are installed in the mounting groove, and the outer side wall of the connecting part and the heat-sealing strip is tightly fitted with the mounting groove.

4. The soldering iron for the packaging testing machine according to claim 1, characterized in that: The top two sides of the mounting groove are respectively provided with slots extending to both sides, and the bottom two sides of the heat sealing part are respectively provided with strips extending to both sides. Each strip is engaged in a slot and is tightly fitted with the slot.

5. The soldering iron for the packaging testing machine according to claim 4, characterized in that: The cross-section of the card slot and card strip is an arc-shaped structure.

6. The soldering iron for the packaging testing machine according to claim 1, characterized in that: Two limiting members are symmetrically installed on the bottom surface of the mounting part on both sides of the mounting groove. The inner sidewalls of the two limiting members are flush with the inner sidewalls on both sides of the mounting groove, and the bottom plane of the limiting members is located above the bottom plane of the heat sealing strip.

7. The soldering iron for the packaging testing machine according to claim 6, characterized in that: There is a gap between the outer wall of the limiting member and the outer wall of the mounting part; The outer side wall of the limiting member is inclined inward from top to bottom.

8. The soldering iron for the packaging testing machine according to claim 6, characterized in that: The limiting member and the mounting part are an integral structure.

9. The soldering iron for the packaging testing machine according to claim 1, characterized in that: The bottom surface of the heat-sealing strip is the heat-sealing surface.

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