DFN package cutting knife

Abstract

The utility model relates to the technical field of semiconductor packaging, especially a DFN package cutting knife, including cutting knife body, the outer wall of cutting knife body is provided with cleaning mechanism, the top fixedly connected with mounting seat of cutting knife body, the cleaning mechanism includes the fixed sleeve fixedly connected in the outer wall of cutting knife body, the front and back of fixed sleeve all are connected with the shaft of rotation, the outer wall fixedly connected with the connecting sleeve of the shaft, the inside slide connection of connecting sleeve has telescopic handle, the outer wall fixedly connected with reset spring of telescopic handle and in the inside of connecting sleeve, the outer wall fixedly connected with cleaning plate of telescopic handle and in the outside of connecting sleeve, through design a kind of DFN package cutting knife, the waste chip of cutting knife body outer wall is cleaned using the cleaning mechanism in the device, solves the problem that the surface of the existing DFN package cutting knife will be left with packaging material debris after cutting, and the debris can easily affect the subsequent cutting effect of DFN package cutting knife.

Description

Technical Field

[0001] This utility model relates to the field of semiconductor packaging technology, specifically a DFN packaging dicing tool. Background Technology

[0002] DFN package dicing blades are devices used to divide small particles of QFN package material. However, existing DFN package dicing blades still have shortcomings. Specifically, after cutting, existing DFN package dicing blades leave packaging material debris on their surface, which can easily affect the subsequent cutting effect of the DFN package dicing blade.

[0003] Therefore, a DFN package dicing tool is needed to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a DFN packaging dicing tool to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A DFN packaged cutting blade includes a cutting blade body, a cleaning mechanism is provided on the outer wall of the cutting blade body, and a mounting base is fixedly connected to the top of the cutting blade body;

[0007] The cleaning mechanism includes a fixed sleeve fixedly connected to the outer wall of the cutting blade body. A rotating shaft is rotatably connected to both the front and back of the fixed sleeve. A connecting sleeve is fixedly connected to the outer wall of the rotating shaft. A telescopic rod is slidably connected inside the connecting sleeve. A return spring is fixedly connected to the outer wall of the telescopic rod and inside the connecting sleeve. A cleaning plate is fixedly connected to the outer wall of the telescopic rod and outside the connecting sleeve. A cleaning strip is fixedly connected to the outer wall of the cleaning plate near the cutting blade body. A sliding block is rotatably connected to the outer wall of the cleaning plate below the cutting blade body. A drive motor is fixedly connected inside the fixed sleeve at a corresponding position on the rotating shaft. A terminal block is installed on the outer wall of the fixed sleeve above the drive motor.

[0008] As a preferred embodiment of this utility model, the mounting base is made of aluminum alloy, and the mounting base has a mounting slot.

[0009] As a preferred embodiment of this utility model, the fixing sleeve, connecting sleeve, and telescopic rod are all made of ABS plastic. The telescopic rod passes through and extends beyond the connecting sleeve. The connection between the return spring and the connecting sleeve, as well as the connection between the drive motor and the rotating shaft, are all fixed connections.

[0010] As a preferred embodiment of this utility model, the cleaning strip is made of silicone, the sliding block has a spherical structure design, and the sliding block, the cleaning strip and the cutting blade body are all connected by sliding connection.

[0011] As a preferred embodiment of this utility model, the cleaning plate has an L-shaped structure design, and the connection between the drive motor and the terminal block is an electrical connection.

[0012] As a preferred embodiment of this utility model, the rotating shaft, connecting sleeve, telescopic rod, cleaning plate, and cleaning strip are all provided in two sets, and the cutting blade body passes through and extends into the fixing sleeve.

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

[0014] 1. In this utility model, a DFN packaging cutting blade is designed. The cleaning mechanism in the device is used to clean the waste on the outer wall of the cutting blade body. The cutting blade body is installed in the cutting equipment. The cutting equipment starts the drive motor. The drive motor drives the connecting sleeve to rotate clockwise through the rotating shaft. The connecting sleeve drives the cleaning plate to rotate above the blade of the cutting blade body through the telescopic rod. The cutting blade body cuts the packaging material. After the cutting is completed, the drive motor drives the connecting sleeve to rotate in the opposite direction through the rotating shaft. The connecting sleeve drives the cleaning plate to slide along the cutting blade body through the telescopic rod. The sliding cleaning plate scrapes away the waste residue on the cutting blade body through the cleaning strip. This solves the problem that after cutting, the surface of the existing DFN packaging cutting blade will have residual packaging material debris, which can easily affect the subsequent cutting effect of the DFN packaging cutting blade. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a cross-sectional view of the present invention;

[0017] Figure 3 This utility model Figure 2 Enlarged view of point A in the middle.

[0018] In the diagram: 1. Cutting blade body; 2. Cleaning mechanism; 3. Mounting base; 201. Fixing sleeve; 202. Rotating shaft; 203. Connecting sleeve; 204. Telescopic rod; 205. Return spring; 206. Cleaning plate; 207. Cleaning strip; 208. Sliding block; 209. Drive motor; 210. Terminal block. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0021] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0023] For examples, please refer to Figure 1-3 This utility model provides a technical solution:

[0024] A DFN-packaged cutting blade includes a cutting blade body 1, a cleaning mechanism 2 provided on the outer wall of the cutting blade body 1, and a mounting base 3 fixedly connected to the top of the cutting blade body 1.

[0025] The mounting base 3 is made of aluminum alloy and has a mounting slot.

[0026] In this embodiment, reference Figure 2 and Figure 3The cleaning mechanism 2 includes a fixed sleeve 201 fixedly connected to the outer wall of the cutting blade body 1. A rotating shaft 202 is rotatably connected to both the front and back of the fixed sleeve 201. A connecting sleeve 203 is fixedly connected to the outer wall of the rotating shaft 202. A telescopic rod 204 is slidably connected inside the connecting sleeve 203. A return spring 205 is fixedly connected to the outer wall of the telescopic rod 204 and inside the connecting sleeve 203. A cleaning plate 206 is fixedly connected to the outer wall of the telescopic rod 204 and outside the connecting sleeve 203. A cleaning strip 207 is fixedly connected to the outer wall of the cleaning plate 206 and on the side close to the cutting blade body 1. A sliding block 208 is rotatably connected to the outer wall of the cleaning plate 206 and below the cutting blade body 1. A drive motor 209 is fixedly connected to the inner wall of the fixed sleeve 201 and at the corresponding position of the rotating shaft 202. A terminal block 210 is installed on the outer wall of the fixed sleeve 201 and above the drive motor 209.

[0027] The fixed sleeve 201, connecting sleeve 203, and telescopic rod 204 are all made of ABS plastic. The telescopic rod 204 passes through and extends beyond the connecting sleeve 203. The return spring 205 is fixedly connected to the connecting sleeve 203, and the drive motor 209 is fixedly connected to the rotating shaft 202. The cleaning strip 207 is made of silicone. The sliding block 208 has a spherical structure design. The sliding block 208, cleaning strip 207, and cutting blade body 1 are all slidably connected. The cleaning plate 206 has an L-shaped structure design. The drive motor 209 is electrically connected to the terminal block 210. The rotating shaft 202, connecting sleeve 203, telescopic rod 204, cleaning plate 206, and cleaning strip 207 are all provided in two sets. The cutting blade body 1 passes through and extends beyond the fixed sleeve 201. The cutting equipment starts the drive motor 209. The drive motor 209 drives the connecting sleeve 203 to rotate clockwise via the rotating shaft 202. The connecting sleeve 203 drives the cleaning plate 206 to rotate above the blade of the cutting blade body 1 via the telescopic rod 204. The cutting blade body 1 cuts the packaging material. After the cutting is completed, the drive motor 209 drives the connecting sleeve 203 to rotate in the opposite direction via the rotating shaft 202. The connecting sleeve 203 drives the cleaning plate 206 to slide along the cutting blade body 1 via the telescopic rod 204. When sliding, the sliding block 208 will abut against the blade of the cutting blade body 1. The telescopic rod 204 moves outward under the pull of the sliding block 208 and the cleaning plate 206, so that the cleaning strip 207 on the outer wall of the cleaning plate 206 can always fit against the blade of the cutting blade body 1. The sliding cleaning plate 206 scrapes away the residual waste on the cutting blade body 1 through the cleaning strip 207.

[0028] The working process of this utility model is as follows: When the DFN packaging cutting knife designed in this solution is running, the cutting knife body 1 is installed in the cutting equipment. The cutting equipment starts the drive motor 209, which drives the connecting sleeve 203 to rotate clockwise through the rotating shaft 202. The connecting sleeve 203 drives the cleaning plate 206 to rotate above the blade of the cutting knife body 1 through the telescopic rod 204. The cutting knife body 1 cuts the packaging material. After the cutting is completed, the drive motor 209 drives the connecting sleeve 203 to rotate in the opposite direction through the rotating shaft 202. The connecting sleeve 203 drives the cleaning plate 206 to slide along the cutting knife body 1 through the telescopic rod 204. When sliding, the sliding block 208 will abut against the blade of the cutting knife body 1. The telescopic rod 204 moves outward under the pull of the sliding block 208 and the cleaning plate 206, so that the cleaning strip 207 on the outer wall of the cleaning plate 206 can always be in contact with the blade of the cutting knife body 1. The sliding cleaning plate 206 scrapes away the residual waste on the cutting knife body 1 through the cleaning strip 207.

[0029] 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. A DFN packaged cutting blade, comprising a cutting blade body (1), characterized in that: The outer wall of the cutting blade body (1) is provided with a cleaning mechanism (2), and the top of the cutting blade body (1) is fixedly connected with a mounting base (3); The cleaning mechanism (2) includes a fixed sleeve (201) fixedly connected to the outer wall of the cutting blade body (1). A rotating shaft (202) is rotatably connected to both the front and back of the fixed sleeve (201). A connecting sleeve (203) is fixedly connected to the outer wall of the rotating shaft (202). A telescopic rod (204) is slidably connected inside the connecting sleeve (203). A return spring (205) is fixedly connected to the outer wall of the telescopic rod (204) and inside the connecting sleeve (203). (203) A cleaning plate (206) is fixedly connected to the outside. A cleaning strip (207) is fixedly connected to the outer wall of the cleaning plate (206) and on the side close to the cutting blade body (1). A sliding block (208) is rotatably connected to the outer wall of the cleaning plate (206) and below the cutting blade body (1). A drive motor (209) is fixedly connected to the inside of the fixed sleeve (201) and at the corresponding position of the rotating shaft (202). A terminal block (210) is installed on the outer wall of the fixed sleeve (201) and above the drive motor (209).

2. The DFN packaging dicing tool according to claim 1, characterized in that: The mounting base (3) is made of aluminum alloy and has mounting slots.

3. The DFN packaging dicing tool according to claim 1, characterized in that: The fixed sleeve (201), connecting sleeve (203) and telescopic rod (204) are all made of ABS plastic. The telescopic rod (204) passes through and extends to the outside of the connecting sleeve (203). The connection between the return spring (205) and the connecting sleeve (203) and the drive motor (209) and the rotating shaft (202) are all fixed connections.

4. The DFN packaging dicing tool according to claim 1, characterized in that: The cleaning strip (207) is made of silicone, and the sliding block (208) has a spherical structure design. The sliding block (208), the cleaning strip (207) and the cutting blade body (1) are all connected by sliding connection.

5. A DFN packaging dicing tool according to claim 1, characterized in that: The cleaning plate (206) has an L-shaped structure design, and the drive motor (209) is electrically connected to the terminal block (210).

6. The DFN packaging dicing tool according to claim 1, characterized in that: The rotating shaft (202), connecting sleeve (203), telescopic rod (204), cleaning plate (206) and cleaning strip (207) are all provided in two sets, and the cutting blade body (1) passes through and extends the fixing sleeve (201).

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