Device for reducing film scraps in film cutting process of pressing die pre-pasting machine
By controlling the local heating of the cutting suction rod, the problems of low-temperature brittleness and high-temperature wrinkling of the film were solved, resulting in reduced film debris and improved production stability.
Patent Information
- Application Number
- CN202423308359.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-12-05
- Estimated Expiration
- 2034-12-30
AI Technical Summary
During circuit board manufacturing, the thin film becomes more brittle at low temperatures, leading to film debris during cutting, which affects the life of the cutter and causes product contamination. Furthermore, it is prone to wrinkling at high temperatures.
A long strip heater is used to locally heat the cutting suction rod. Combined with a temperature detector and controller, the temperature is controlled within ±3°C to avoid the film becoming too brittle or too fragile. The film is then cut and softened by a cutting blade.
It reduces the generation of membrane debris, extends the life of the cutter, avoids product and environmental pollution, and promotes stable and efficient production.
Smart Images
Figure CN223630489U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to photoresist dry film production technical field especially relates to a film cutting device of mould pressing pre -attaching machine. BACKGROUND
[0002] In the circuit board production industry, with the development of electronic industry, the circuit line of electronic circuit, chip circuit is more and more fine, the gap between copper wire and copper wire is smaller and smaller, micron level, even nanometer level line, especially the manufacture of chip, its surface is attached with various functional films such as anti -soldering film, insulating film, which needs manual pre -attaching on the circuit board. In the actual film pasting process, because the influence of temperature on photoresist dry film is relatively large, high temperature can make the film strong adhesion, thereby causing the film to wrinkle, so the temperature in the film pressing pre -attaching machine is usually kept at about 15 DEG C, and the brittleness of the film at this temperature increases, although it does not wrinkle, but cutting film scraps will be produced in the cutting of high-speed rotating cutting knife, which not only affects the service life of cutting knife, but also pollutes the product and the internal environment of machine. SUMMARY
[0003] The utility model discloses a kind of devices for reducing film scraps in film cutting process of mould pressing pre -attaching machine, by heating the film at cutting suction rod, to range heating and softening for film, to avoid whole film temperature too high to wrinkle and temperature too low to produce cutting film scraps, to promote the stable and efficient of production process.
[0004] The utility model discloses a kind of devices for reducing film scraps in film cutting process of mould pressing pre -attaching machine, by heating the film at cutting suction rod, to range heating and softening for film, to avoid whole film temperature too high to wrinkle and temperature too low to produce cutting film scraps, to promote the stable and efficient of production process.
[0005] The utility model provides a kind of devices for reducing film scraps in film cutting process of mould pressing pre -attaching machine, by long strip heater, temperature detector, temperature controller, temperature alarm, film cutting knife, cutting suction rod constitute;The long strip heater, temperature detector are set in the bottom of cutting suction rod;The film cutting knife is located at the outside of cutting suction rod lower region place;Film contact adsorption is on the outside of cutting suction rod.
[0006] The utility model has the following beneficial effects:
[0007] (1) the utility model uses long strip heater to make heating range be more wide, more stable, by temperature controller to make temperature stability be within ±3 range.Local heating cutting position of film, reduce the film scrap produced when cutting.
[0008] (2) the utility model avoids the film temperature too high to wrinkle and temperature too low to produce cutting film scraps by range heating and softening, reduces the pollution of product and internal environment of machine, also prolongs cutting knife life, is favorable to promote the stable and efficient of production process. BRIEF DESCRIPTION OF DRAWINGS
[0009] The utility model will be described in further detail below in combination with embodiments and drawings:
[0010] Figure 1 is the front view of the embodiment of the utility model (film cutting knife, film not shown);
[0011] Figure 2 is Figure 1 the right side view (enlarged) of
[0012] In the drawing: long strip heater 1, temperature detector 2, temperature controller 3, temperature alarm 4, film cutting knife 5, cutting suction rod 6, lower area 6a, film 7 DETAILED DESCRIPTION
[0013] Figure 1 and Figure 2 As shown in the embodiment of the utility model for a die pre-pasting machine film cutting process reduces the device of the film scrap, by long strip heater 1, temperature detector 2, temperature controller 3, temperature alarm 4, film cutting knife 5, cutting suction rod 6.
[0014] As shown in Figure 1 and Figure 2 , long strip heater 1, temperature detector 2 are arranged at the bottom of cutting suction rod 6, for heating the lower area 6a of cutting suction rod 6 and detecting the temperature of the area. As shown in Figure 2 , film cutting knife 5 is located at the outside of the lower area 6a of cutting suction rod; film 7 is adsorbed on the outside of cutting suction rod 6.
[0015] Temperature controller 3, temperature alarm 4 are connected with long strip heater 1, temperature detector 2. Temperature controller 3 obtains the temperature information of the heated lower area 6a to control long strip heater 1, and temperature alarm 4 alarms when the temperature is too high.
[0016] The working principle of the embodiment is as follows: long strip heater 1 is started by temperature controller 3 (which can be combined with PLC system program) control, so that the lower area 6a of cutting suction rod is heated to the set temperature. Film 7 is adsorbed and attached to the outside of cutting suction rod 6 by suction force, and is heated by heat conduction of cutting suction rod 6 to realize range heating. The brittleness of the low-temperature film at the adsorbed and attached place is continuously reduced with the increase of temperature and then softened, and the generation of film scrap is reduced when cutting by film cutting knife 5, and the phenomenon of wrinkle of the whole film due to too high temperature is also avoided.
Claims
1. A device for reducing film debris during the film cutting process of a pre-applied molding machine, characterized in that: The utility model discloses a long strip type heater (1), temperature detector (2), temperature controller (3), temperature alarm (4), film cutting knife (5), cutting suction rod (6) constitute, long strip type heater (1), temperature detector (2) are arranged at the bottom of cutting suction rod (6), film cutting knife (5) is located at the outside of cutting suction rod lower area (6a) place, and film (7) is adsorbed on the outside of cutting suction rod (6) and is contacted.