Scraper knife film tearing device

By designing a shovel-shaped film-tearing device, the blade is used to obliquely pierce and lift the release film, combined with the vertical clamping of the pressure plate, to separate the adhesive film from the release film. This solves the problem of the adhesive film and release film peeling off together and ensures the integrity of the adhesive film.

CN224104472UActive Publication Date: 2026-04-10USUN TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
USUN TECH CO LTD
Filing Date
2025-04-18
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

In semiconductor or circuit board manufacturing processes, it is difficult to effectively separate the adhesive film and the release film, which leads to the problem that the adhesive film and the release film peel off together when the release film is removed, increasing the difficulty.

Method used

Design a scraper film-tearing device, including a base, a pressure plate and a scraper assembly. The blade of the scraper assembly obliquely inserts into the joint gap between the adhesive film and the release film, lifts the release film and separates it from the adhesive film. The driving unit uses a pressure plate to hold the top side of the release film vertically downward, forming an oblique clamping between the pressure plate and the blade, thereby achieving lateral peeling.

Benefits of technology

This effectively prevents the adhesive film from peeling off from the release film, ensuring the integrity of the adhesive film and facilitating subsequent processes.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a scraper knife film tearing device which comprises the following components: a base which is internally provided with a moving space and can slide on the surface of a preset substrate, and the surface of the preset substrate is provided with a glue film and a release film; the pressing plate is arranged in the base, and the pressing plate moves vertically through the driving unit; the driving unit is arranged on the base and provides sliding power for the scraper knife film tearing device to be close to or far away from the preset base plate; the scraper knife assembly comprises a knife holder and a blade which are pivoted in the movable space of the base, the release film is obliquely clamped through the pressing plate and the blade, the base is driven to slide in the horizontal direction so that the release film can be separated from the adhesive film, the problem that the adhesive film and the release film are stripped together can be avoided, and the integrity of the adhesive film can be ensured.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of spud tear-off film device, especially a kind of spud tear-off film device can be on the surface of preset substrate Slipping, and the blade of spud assembly can be obliquely pierced into the joint gap of adhesive film and release film on preset substrate, and release film is separated upwards with adhesive film and make blade be located at the bottom side of release film, the pressing plate of base is vertically downward and is supported on the top side of release film by driving unit, and the oblique clamping release film of pressing plate and blade is formed again transverse peeling, can avoid the problem that adhesive film and release film are peeled together, and can ensure the integrity of adhesive film. BACKGROUND

[0002] In the process of semiconductor or circuit board, sometimes need to form adhesive film on substrate surface to achieve protection purpose, but adhesive film usually has viscosity and static electricity easy to surface adsorption dust or debris, so need to form release film on adhesive film surface to prevent dust adsorption and air isolation, and release film on adhesive film needs to be removed in processing process, so that adhesive film surface is exposed to facilitate subsequent operation.

[0003] Furthermore, it is more efficient to remove release film by automatic equipment, but adhesive film is attached to substrate surface by heating operation, and the periphery of release film on adhesive film surface can be covered by flowing hot adhesive film, so that adhesive film and release film are peeled together when release film is removed, so as to increase the difficulty of removing release film. The problems generated by the above-mentioned conventional automatic release film removal need to be solved by those skilled in the art. UTILITY MODEL CONTENT

[0004] Therefore, in view of the above problems and deficiencies, the main purpose of the utility model is to provide a kind of spud tear-off film device.

[0005] The utility model provides a kind of spud tear-off film device, it is characterized by, including:

[0006] A base is formed with a movable space communicated with one side of the base inside, the bottom side of the base can slide on a preset substrate surface, the preset substrate surface has an adhesive film, and the adhesive film has a release film;

[0007] A pressing plate is installed in the base, and the pressing plate forms vertical action by a driving unit; and

[0008] A spud assembly includes a blade holder pivoted in the movable space of the base, the blade holder has a blade at the bottom side of the base, the release film is clamped obliquely by the pressing plate and the blade, the base is driven to slide horizontally, so that the release film is separated from the adhesive film.

[0009] The film tearing device, wherein the bottom side of the base is provided with at least one shaft slot for accommodating at least one sliding assembly, the sliding assembly comprises a shaft located in the active space and capable of rolling, and two shaft rods protruding from both sides of the shaft, the outer part of the two shaft rods is sleeved with a ball bearing clamped in the shaft slot, and the horizontal pushing force of the preset linear sliding rail or pushing jig can make the film tearing device slide on the preset substrate surface.

[0010] The film tearing device, wherein the driving unit is installed on the base and comprises a sliding cylinder providing vertical action power for the pressing plate, the bottom side of the sliding cylinder and the top surface of the base are provided with a fixed plate for locking, and the side of the sliding cylinder is provided with at least one magnetic reed switch which is turned on or off by magnetic force and can be positioned or counted.

[0011] The film tearing device, wherein the fixed plate has a through hole on both sides, the through hole is provided with a through hole for aligning the through hole on both sides of the inverted U-shaped rotating seat and the pivot is inserted, and the both ends of the pivot are sleeved with an O-shaped buckle ring which can be fixed, so that the rotating seat can rotate on the fixed plate.

[0012] The film tearing device, wherein the fixed plate has a through slot between the sliding cylinder and the rotating seat, the through slot is provided for positioning the T-shaped pressing plate, the bottom side of the pressing plate is inserted into the active space of the base and forms a pressing part at the end for pressing the cutting edge of the blade.

[0013] The film tearing device, wherein the shovel assembly comprises a blade seat in the active space of the base and is connected to the base by a positioning pin, the blade seat has a through channel between both sides and the base for inserting the positioning pin, a vertical oval-shaped sliding groove for inserting a guide rod, and two shaft holes for inserting a shaft, and the two shaft holes form an empty adjustment space between them.

[0014] The film tearing device, wherein the shovel assembly further comprises an angle adjusting member provided at the corresponding active space on the top surface of the base, the angle adjusting member comprises a fixed sheet provided on the top surface of the base and provided with a bolt and an E-shaped buckle ring in the fixed sheet, the bolt comprises a head and a rod body located in the active space of the base and clamped with the E-shaped buckle ring, and the end of the rod body extends into the radial positioning hole of the shaft in the adjustment space to form clamping fixation.

[0015] The film tearing device, wherein the shovel assembly is locked and fixed with the blade seat by the fixed part composed of the external bottom cover of the blade and the screw, and the surface of the bottom cover is provided with a fixed seat for fixing the preset optical fiber, and the end of the blade forms a sharp cutting edge capable of penetrating the joint gap between the adhesive film and the release film.

[0016] The spud cutter film tearing device, wherein the preset substrate is a copper foil substrate composed of glass fiber and copper foil, and the adhesive film and the release film are formed on the surface of the copper foil.

[0017] The main advantage of the spud cutter film tearing device is that the spud cutter film tearing device can slide on the surface of the preset substrate, the blade of the spud cutter assembly can obliquely penetrate the joint gap between the adhesive film and the release film on the preset substrate, the release film is lifted upward to separate from the adhesive film and the blade is located at the bottom side of the release film, the pressing plate of the base is driven by the driving unit to vertically downwardly abut against the top side of the release film, the pressing plate and the blade obliquely clamp the release film to perform transverse peeling, the problem of peeling the adhesive film together with the release film can be avoided, and the integrity of the adhesive film can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a perspective view of the spud cutter film tearing device.

[0019] Figure 2 It is another perspective view of the spud cutter film tearing device.

[0020] Figure 3 It is a partial exploded view of the spud cutter film tearing device.

[0021] Figure 4 It is another perspective view of the spud cutter film tearing device. Figure 3

[0022] Figure 5 It is another partial exploded view of the spud cutter film tearing device.

[0023] Figure 6 It is another perspective view of the spud cutter film tearing device. Figure 5

[0024] Figure 7 It is a first action schematic view of the spud cutter film tearing device.

[0025] Figure 8 It is a second action schematic view of the spud cutter film tearing device.

[0026] ​​Explanation of reference signs: 1 - base; 10 - moving space; 11 - sliding assembly; 111 - wheel shaft; 112 - shaft rod; 113 - ball bearing; 12 - shaft groove; 2 - driving unit; 21 - sliding cylinder; 211 - magnetic reed switch; 22 - fixed plate; 221 - through hole; 222 - through slot; 23 - rotating seat; 231 - through hole; 24 - pivot; 241 - O-shaped buckle; 25 - pressing plate; 251 - pressing part; 3 - shovel blade assembly; 31 - blade seat; 311 - channel; 312 - sliding groove; 313 - shaft hole; 314 - adjusting space; 32 - blade; 321 - blade edge; 33 - angle adjusting piece; 331 - bolt; 3311 - head; 3312 - rod body; 332 - E-shaped buckle; 333 - fixed piece; 334 - rotating shaft; 3341 - positioning hole; 34 - bottom cover; 341 - fixing piece; 35 - fixing seat; 36 - positioning pin; 37 - guide rod; 4 - base plate; 41 - glass fiber; 42 - copper foil; 43 - adhesive film; 44 - release film. DETAILED DESCRIPTION

[0027] Please refer to Figures 1 to 8 the other perspective view, the partial exploded view, Figure 3 the other perspective view, the partial exploded view, Figure 5 the other perspective view, the first action schematic view and the second action schematic view, it can be clearly seen from the drawings that the shovel blade film tearing device provided by the utility model mainly comprises a base 1, a driving unit 2 and a shovel blade assembly 3, and the detailed structure and connection relationship are as follows:

[0028] The base 1 is internally formed with a moving space 10 in communication with one side of the base 1, and the bottom side of the base 1 can be slid on the surface of a preset base plate 4, the surface of the preset base plate 4 is provided with an adhesive film 43 and a release film 44 on the adhesive film 43, the preset base plate 4 refers to a copper foil base plate composed of glass fiber 41 and copper foil 42, and the adhesive film 43 and the release film 44 are formed on the surface of the copper foil 42.

[0029] A pressing plate 25 is arranged in the base 1, and the pressing plate 25 is vertically moved by a driving unit 2.

[0030] The shovel blade assembly 3 includes a blade seat 31 pivoted in the active space 10 of the base 1, the blade seat 31 extends into the base 1 bottom side and is provided with a blade 32, the blade 32 can be obliquely inserted into the joint gap between the adhesive film 43 and the release film 44 on the preset substrate 4, and the release film 44 is lifted up and separated from the adhesive film 43, and the blade 32 is located at the bottom side of the release film 44. The driving unit 2 drives the pressing plate 25 of the base 1 to vertically downwardly abut against the top side of the release film 44, and forms the oblique clamping of the release film 44 by the pressing plate 25 and the blade 32, and forms the horizontal pulling force of the release film 44 by the blade 32 and the base 1 sliding, and makes the release film 44 separate from the adhesive film 43.

[0031] The bottom side of the base 1 is provided with at least one shaft groove 12 for at least one sliding assembly 11 to pass through and be accommodated, the sliding assembly 11 includes an axle 111 located in the active space 10 and capable of rolling, and two shaft rods 112 protruding from both sides of the axle 111, and the two shaft rods 112 are externally sleeved with ball bearings 113 clamped in the shaft groove 12. The horizontal pushing force of the preset linear slide rail or pushing jig (not shown in the figure) can make the shovel film tearing device slide on the surface of the preset substrate 4.

[0032] Please refer to Figure 5 The driving unit 2 is installed on the base 1, including a sliding cylinder 21 providing vertical action power for the pressing plate 25, the bottom side of the sliding cylinder 21 and the top surface of the base 1 are provided with a fixed plate 22 making them locked, the side of the sliding cylinder 21 is provided with at least one magnetic reed switch 211 which is turned on or off by magnetic force and can be positioned or counted; both sides of the fixed plate 22 have through holes 221 which are through and are used for the through holes 231 of the two sides of the inverted 'U' shaped rotating seat 23 to be aligned and for the pivot 24 to pass through, and both ends of the pivot 24 are sleeved with O-shaped buckles 241 which can be fixed, so that the rotating seat 23 can rotate on the fixed plate 22; the fixed plate 22 has a hollow slot 222 between the sliding cylinder 21 and the rotating seat 23, the hollow slot 222 is used for the 'T' shaped pressing plate 25 to pass through and be positioned, and the bottom side of the pressing plate 25 passes into the active space 10 of the base 1 and is provided with a pressing part 251 at the end which abuts against the cutting edge 321 of the blade 32. In addition to using a cylinder as a power source, the sliding cylinder 21 of the foregoing driving unit 2 can also use a motor (including a stepping motor) matched with an adaptive transmission mechanism to achieve the same function, therefore, the form of the sliding cylinder 21 is not limited in the utility model.

[0033] Please refer to Figure 4As shown, the shovel blade assembly 3 includes a blade seat 31 in the active space 10 of the base 1 in a transverse trapezoidal shape and pivoted by a positioning pin 36, the blade seat 31 has a through channel 311 between two sides of the base 1 for the positioning pin 36 to pass through, a vertical oval-shaped sliding groove 312 for a guide rod 37 to pass through, and two shaft holes 313 for a rotating shaft 334 to pass through, and the two shaft holes 313 form an open adjustment space 314 therebetween; the shovel blade assembly 3 further includes an angle adjustment member 33 arranged on the top surface of the base 1 corresponding to the active space 10, the angle adjustment member 33 includes a fixed plate 333 arranged on the top surface of the base 1, and the fixed plate 333 is provided with a bolt 331 and an E-shaped buckle 332, the bolt 331 includes a head portion 3311 and a rod body 3312 arranged in the active space 10 of the base 1 and buckled by the E-shaped buckle 332, and the rod body 3312 extends into a radial positioning hole 3341 of the rotating shaft 334 in the adjustment space 314 to form a clamping fixation; the shovel blade assembly 3 is locked and fixed with the blade seat 31 by an external bottom cover 34 of the blade 32 and a fixing member 341 composed of a screw, and the surface of the bottom cover 34 is provided with a fixing seat 35 for fixing a pre-set optical fiber (not shown in the figure), and the end of the blade 32 forms a sharp blade edge 321 that can penetrate into the joint gap between the adhesive film 43 and the release film 44.

[0034] Please refer to Figure 1 、 Figure 2 、 Figure 7 、 Figure 8As shown, the utility model discloses a shovel knife tear open film device in actual operation, first through the processor (CPU) or micro control unit (MCU) control shovel knife tear open film device moves to the surface of base plate 4, via control signal can make the rotation between rotating seat 23 and fixed plate 22 and adjust angle, with the rotation between pivot 334 of angle adjusting piece 33 and tool seat 31 to the predetermined inclination angle 31 to adapt the height of adhesive film 43 and release film 44 on base plate 4, when blade 32 front end cutting edge 321 moves to the predetermined position of release film 44 edge can oblique and pierce into the joint gap of adhesive film 43 and release film 44 on base plate 4, and can effectively cut off the connection of adhesive film 43 upwardly covering the circumference of release film 44, and make the circumference of release film 44 be pried up and lift, and pick up release film 44 upward and separate from adhesive film 43 and make blade 32 be located at the bottom side of release film 44, and via drive unit 2 drive the pressing plate 25 of base 1 vertically downward and bear on the top side of release film 44, and form the oblique clamping release film 44 of pressing plate 25 and blade 32, and form the horizontal direction pulling force of blade 32 and release film 44 by preset linear slide rail or pushover jig (not shown in the figure) pushover shovel knife tear open film device on base plate 4 towards the opposite side and slip, and make release film 44 separate from adhesive film 43, by the foregoing operation can avoid the problem that adhesive film 43 and release film 44 are peeled off together, and can ensure the integrity of adhesive film 43, to facilitate conveying base plate 4 to the next work station and working.

[0035] The main features of the utility model lie in that: shovel knife tear open film device can slide on the surface of preset base plate 4, and the blade 32 of shovel knife assembly 3 can obliquely pierce into the joint gap of adhesive film 43 and release film 44 on preset base plate 4, pick up release film 44 upward and separate from adhesive film 43 and make blade 32 be located at the bottom side of release film 44, via drive unit 2 drive the pressing plate 25 of base 1 vertically downward and bear on the top side of release film 44, and form the oblique clamping release film 44 of pressing plate 25 and blade 32 again and carry out transverse peeling, can avoid the problem that adhesive film 43 and release film 44 are peeled off together, and can ensure the integrity of adhesive film 43.

[0036] The above only is the preferred embodiment of the utility model, and not therefore just the patent range of the utility model, so the example is applied the utility model specification and the equivalent structural change of drawing content, and should be contained in the patent range of the utility model, and it is announced.

Claims

1. A film tearing device for a doctor blade, characterized in that, The application relates to a scraping device for a copper foil substrate, which comprises a base, a pressing plate, and a scraper assembly. The base is internally formed with a movable space communicating with one side of the base, and the bottom side of the base can slide on a preset substrate surface provided with a glue film and a release film. The pressing plate is vertically moved by a driving unit. The scraper assembly comprises a blade holder pivoted in the movable space of the base, and the blade holder extends into the bottom side of the base and is provided with a blade.

2. The lancing device of claim 1, wherein: The release film is clamped by the pressing plate and the blade obliquely, and the base is driven to slide horizontally to make the release film separate from the glue film.

3. The lancing device of claim 1, wherein: The bottom side of the base is provided with at least one shaft groove for at least one sliding assembly.

4. The lancing device of claim 3, wherein: The sliding assembly comprises a wheel shaft located in the movable space and capable of rolling and provided with shaft rods on both sides.

5. The lancing device of claim 3, wherein: The outer parts of the shaft rods are provided with ball bearings matched with the shaft grooves.

6. The lancing device of claim 1, wherein: The scraping device can slide on the preset substrate surface by the horizontal thrust of a preset linear slide rail or a pushing jig.

7. The lancing device of claim 6, wherein: The driving unit is arranged on the base and comprises a sliding cylinder providing vertical moving power for the pressing plate.

8. The lancing device of claim 1, wherein: The bottom side of the sliding cylinder and the top surface of the base are provided with a fixed plate making them locked.

9. The lancing device of claim 1, wherein: The side edge of the sliding cylinder is provided with at least one magnetic reed switch turned on or off by magnetic force and capable of positioning or counting. The fixed plate is provided with through holes on both sides. The through holes are provided with through holes on both sides of an inverted U-shaped rotating seat and are provided with a pivot. The two ends of the pivot are provided with O-shaped buckles capable of being fixed. The fixed plate is provided with a hollow slot between the sliding cylinder and the rotating seat. The hollow slot is provided with a T-shaped pressing plate. The bottom side of the pressing plate penetrates into the movable space of the base and is provided with a pressing part at the end for the blade edge. The scraper assembly comprises a blade holder in a horizontal trapezoid shape and pivoted in the movable space of the base. The blade holder is provided with a channel between both sides and the base, a sliding groove provided with a vertical oval shape and penetrating a guide rod, and two shaft holes penetrating a rotating shaft and forming an adjustment space. The scraper assembly is further provided with an angle adjusting part arranged on the top surface of the base corresponding to the movable space. The angle adjusting part comprises a fixed sheet arranged on the top surface of the base and provided with a bolt and an E-shaped buckle. The bolt comprises a head and a rod body located in the movable space of the base and capable of being buckled by the E-shaped buckle. The rod body penetrates into the radial positioning hole of the rotating shaft in the adjustment space and is buckled and fixed. The scraper assembly is locked and fixed by the blade external bottom cover and the fixing part composed of a screw. The surface of the bottom cover is provided with a fixing seat for fixing a preset optical fiber. The preset substrate is a copper foil substrate composed of glass fiber and copper foil. The copper foil surface is provided with the glue film and the release film.