A retractable and adjustable pressure roller for a die bonder
By designing a retractable and adjustable die bonder roller, the problems of cumbersome adjustment and difficulty in ensuring accuracy in existing technologies have been solved, enabling fast and convenient adjustment and improving production efficiency and chip welding quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- EAST CHINA INST OF OPTOELECTRONICS INTEGRATEDDEVICE
- Filing Date
- 2025-07-24
- Publication Date
- 2026-05-26
AI Technical Summary
The adjustment of the pressure rollers in existing die bonding machines is cumbersome, time-consuming, and difficult to guarantee in terms of adjustment accuracy, which affects the chip bonding quality and increases production costs and maintenance workload.
A retractable and adjustable pressure roller for a die bonder was designed. The fixed arm and connecting rod are connected by locking screws and positioning screws. Combined with a telescopic sleeve structure and a flexible material pad, the adjustment process of the pressure roller is simplified.
It enables rapid adaptation to the production needs of chips and lead frames of different specifications, improves production efficiency, saves time and labor costs, and ensures adjustment accuracy and safety.
Smart Images
Figure CN224290622U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of semiconductor die bonding machine technology, specifically to a retractable and adjustable die bonding machine pressure roller. Background Technology
[0002] In semiconductor chip packaging processes, automated die bonders are crucial equipment, primarily used to bond chips from wafers to lead frames. During bonding, the lead frames are transported along a conveyor track by the die bonder's transport device to directly beneath the dispensing and placement units. Pressure rollers then press the lead frames down to ensure the flatness and consistency of the dispensing and soldering. However, due to the numerous types and sizes of lead frames available, different products require the selection of appropriate lead frames for production. Therefore, depending on the size of the lead pads, multiple bolts need to be frequently loosened and tightened to adjust the position of the pressure rollers. This is not only cumbersome and time-consuming, reducing production efficiency, but also makes it difficult to guarantee adjustment accuracy, affecting chip soldering quality. It also increases production costs and equipment maintenance workload. Furthermore, improper adjustment may pose a risk of collision between the transport device and the pressure rollers. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a retractable and adjustable pressure roller for a film bonding machine.
[0004] This application provides the following technical solution:
[0005] A retractable and adjustable pressure roller for a die bonder is characterized in that: it includes a fixed plate connected to the die bonder table, a fixed arm movably connected to the fixed plate, an insertion hole provided on the fixed arm, a connecting rod movably connected in the insertion hole, a telescopic rod movably connected to the connecting rod, and a pressure roller connected to one end of the telescopic rod.
[0006] Based on the above technical solutions, the following further technical solutions are also possible:
[0007] The fixing plate has an elongated hole through which a locking screw is inserted. The screw shank of the locking screw is connected to the fixing arm, and the top of the locking screw cap forms a locking fit with the fixing plate.
[0008] A screw hole is provided at one end of the fixed arm, and one end of the screw hole is connected to the insertion hole. The connecting rod inserted into the insertion hole can be locked by screwing a positioning screw into the screw hole.
[0009] The telescopic rod is a telescopic sleeve structure, which includes a sleeve and a corresponding telescopic rod body. The sleeve has a C-shaped slot that corresponds to the connecting rod at the tail end. The slot has a flange, and the flange has a corresponding second locking screw. The sleeve also has a locking pin that corresponds to the telescopic rod body.
[0010] The outer surface of the pressure roller is covered with a pad made of flexible material.
[0011] Advantages of the utility model:
[0012] This invention has a simple structure, is easy to use, and can be quickly and easily adjusted. It can quickly adapt to the production needs of chips and lead frames of different specifications, saving time and labor costs and significantly improving production efficiency. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the completed assembly of this utility model. Detailed Implementation
[0015] like Figure 1 and 2 As shown, a retractable and adjustable pressure roller for a die bonder includes a fixed plate 1 connected to the die bonder table via connecting screws 1c. The fixed plate 1 has an elongated hole 1a, through which a pair of locking screws 1b pass. A fixed arm 2 extends from the screw shank of the locking screw 1b below the fixed plate 1 and connects thereto. The cap of the locking screw 1b forms a locking engagement with the fixed plate 1. The locking position of the fixed arm 2 can be adjusted by loosening or tightening the locking screws 1b according to actual production needs, thereby achieving a movable connection between the fixed plate 1 and the fixed arm 2.
[0016] A insertion hole 6 is provided at the end of the fixed arm 2, away from the end of the locking screw 1b, and a connecting rod 3 is inserted into the insertion hole 6. A screw hole 2a is provided on the end face of this end, one end of which communicates with the insertion hole 6. A positioning screw (not shown in the figure) corresponding to the connecting rod 3 is screwed into the screw hole 2a. The depth to which the connecting rod 3 is inserted into the insertion hole 6 is selected according to actual production needs, and then the positioning screw is tightened to lock the connecting rod 3, thereby realizing a movable connection between the insertion hole 6 and the connecting rod 3.
[0017] A telescopic rod 4 is provided as a telescopic sleeve structure, comprising a sleeve a and a corresponding telescopic rod body b. At the tail end of sleeve a, there is a C-shaped slot c that mates with the connecting rod 3. A flange is provided on slot c, and a corresponding second locking screw d is provided on the flange. The sleeve a is connected to the connecting rod 3 at a suitable position by loosening or tightening the second locking screw d according to actual production needs. A locking pin e is also provided on sleeve a that mates with the telescopic rod body b. The telescopic rod body b is locked by loosening or tightening the locking pin e according to actual production needs, thereby controlling the extension length of the telescopic rod body b.
[0018] The extended end of the telescopic rod body b is provided with a groove structure, and a pressure roller 5 is installed in the groove. The outer circular surface is covered with a rubber pad.
Claims
1. A retractable and adjustable pressure roller for a film bonding machine, characterized in that: It includes a fixed plate (1) connected to the bonding machine platform, a fixed arm (2) movably connected to the fixed plate (1), a plug hole (6) provided on the fixed arm (2), a connecting rod (3) movably connected in the plug hole (6), a telescopic rod (4) movably connected to the connecting rod (3), and a pressure roller (5) connected to one end of the telescopic rod (4).
2. The extendable and adjustable pressure roller for a film bonding machine according to claim 1, characterized in that: The fixing plate (1) is provided with an elongated hole (1a), and a locking screw (1b) is inserted in the elongated hole (1a). The screw part of the locking screw (1b) is connected to the fixing arm (2), and the top of the cap of the locking screw (1b) forms a locking fit with the fixing plate (1).
3. The extendable and adjustable pressure roller for a die bonder according to claim 1, characterized in that: A screw hole (2a) is provided at one end of the fixed arm (2), and one end of the screw hole (2a) is connected to the insertion hole (6). The connecting rod (3) inserted into the insertion hole (6) can be locked by screwing a positioning screw into the screw hole (2a).
4. The retractable and adjustable pressure roller for a die bonder according to claim 1, characterized in that: The telescopic rod (4) is a telescopic sleeve structure, which includes a sleeve (a) and a corresponding telescopic rod body (b). At the end of the sleeve (a), there is a C-shaped slot (c) that corresponds to the connecting rod (3). A flange is provided on the slot (c), and a corresponding second locking screw (d) is provided on the flange. A locking pin (e) that corresponds to the telescopic rod body (b) is also provided on the sleeve (a).
5. The extendable and adjustable pressure roller for a die bonder according to claim 1, characterized in that: The outer surface of the pressure roller (5) is covered with a pad made of flexible material.