CN220517008U - Film cutting and knife leaning device - Google Patents

Abstract

The utility model discloses a film cutting and knife leaning device which comprises a cutter, a knife leaning part and a turning part, wherein the knife leaning part and the turning part are connected through a connecting pin, the knife leaning part can rotate controllably along the connecting pin relative to the turning part, the cutter is detachably arranged on a knife holder in the knife leaning part, the knife holder is hinged on a knife holder fixing block, and the knife holder can rotate controllably along a hinged position under the action of a micro cylinder. The advantage utilizes the microcylinder to promote the blade holder along the controllable rotation of blade holder fixed block, realizes the leaning on the sword of cutter, utilizes the connecting pin drive blade holder fixed block of connecting blade holder fixed block and taking the torsional spring to rotate along connecting pin relatively fixed block again, has realized that the cutter is rotatory in cutting inflection point department, has effectively avoided the overlap phenomenon, utilizes the electro-magnet to carry out controllable control to the rotation of blade holder fixed block and fixed block again simultaneously, convenient to use.

Description

Film cutting and knife leaning device

Technical Field

The utility model particularly relates to a film cutting and knife leaning device.

Background

In the wafer processing process, part of the process needs to be protected, transferred and temporarily bonded by a film (adhesive film) or used as a chip forming material (photoetching film), and the specification of the wafer is not regular round, so that the film cutting process needs to be dynamically adjusted, the feeding route (tool path) of a cutter is the same as the contour of the wafer, and then the cutter is cut into a film with the same contour as the wafer, and the cutter is firstly abutted against the edge of the wafer before the film cutting, so that the cutter with the same contour as the wafer is cut;

at present, manual wafer film cutting equipment exists on the market, mainly uses the shrinkage force of elastic devices such as coil springs and the like to realize floating, and a flexible cutting device cannot be dynamically adjusted in work, is only suitable for wafers with more regular outer contours, is not suitable for wafers with more complex outer contours, and meanwhile, a cutter cannot rotate integrally, and a phenomenon (commonly called flash) that a part of adhesive films cannot be cut off is caused in the process of cutting an arc edge to a straight edge due to poor transition in the process of cutting the arc edge, so that manual secondary trimming is required, and the workload is increased while the operation is inconvenient.

In chinese patent: 201010516841.X, name: the film cutting tool and the film cutting equipment are characterized in that the film cutting tool comprises a blade, and the blade is mounted on the bracket in an angle adjustable manner; the first elastic reset device can generate elastic deformation force along with the change of the angle of the blade, and the elastic deformation force can enable the blade to return to a state with unchanged angle; the blade is arranged on a rotating bracket, and the rotating bracket is rotatably arranged on the bracket; when the rotating support rotates, the first elastic reset device generates elastic deformation force along with the rotation of the rotating support, and the elastic deformation force can enable the rotating support to return to a state before rotation.

As shown in the drawing in patent 201010516841.X, the patent mainly uses the contraction force of the coil spring in the first elastic reset device to realize floating and flexible cutting device, but the cutting mode can not solve the problem that flash occurs at the inflection point in the process of cutting the arc edge to the straight edge, and still needs secondary processing and has poor using effect.

Disclosure of Invention

The utility model aims to solve the technical problems that when the existing film cutting device is used, a cutter seat is not rotatable, a flash cutting effect is poor when the cutter seat is cut to a corner, and secondary machining is needed.

Aiming at the technical problems, a film cutting and knife leaning device is provided; the method is realized by the following technical scheme: the utility model provides a cut membrane and lean on sword device, includes the cutter, still includes lean on sword portion and turns to the portion, lean on the sword portion and turn to the portion and connect through the connecting pin between the portion, lean on the controllable rotation of sword portion along the relative portion that turns to of connecting pin, the cutter can dismantle the blade holder that sets up in leaning on the sword portion, the blade holder articulates on the blade holder fixed block, the blade holder is along the controllable rotation of articulated department under the effect of miniature cylinder.

According to the utility model, the micro cylinder is utilized to push the cutter holder to controllably rotate along the cutter holder fixing block, so that the cutter is leaned against, the cutter holder fixing block is driven to rotate along the connecting pin relative to the fixing block by utilizing the connecting pin which is used for connecting the cutter holder fixing block and the fixing block and is provided with the torsion spring, the cutter is rotated at the cutting inflection point, the phenomenon of flash is effectively avoided, and meanwhile, the electromagnet is utilized to controllably control the rotation of the cutter holder fixing block and the fixing block, so that the cutter holder fixing block is convenient to use.

According to the technical scheme, the cutter leaning part comprises a cutter seat, a cutter seat fixing block and a micro air cylinder, the cutter is detachably arranged on the cutter seat, the cutter seat is hinged on the cutter seat fixing block, one end of the micro air cylinder is hinged on the cutter seat, the other end of the micro air cylinder is connected on the cutter seat fixing block, the cutter seat is hinged relative to the cutter seat fixing block, the micro air cylinder can rotate controllably, the micro air cylinder is arranged to facilitate the cutter seat to rotate along the hinged position, and the cutter leaning is realized and is convenient to use.

The technical scheme of the utility model is preferable, the shaft of the micro cylinder on the tool apron is not concentric with the hinge shaft of the tool apron on the tool apron fixing block, and the shaft and the hinge shaft are eccentrically arranged, so that the micro cylinder can conveniently push the tool apron to rotate, and the tool apron fixing block is convenient to use.

According to the technical scheme, the side face of the tool apron fixing block is provided with the groove for installing the electromagnet in a manner of being perpendicular to the tool apron fixing block in a concave manner, and the electromagnet is convenient to install and control the rotation of the tool apron fixing block through the electromagnet, so that the tool apron fixing block is convenient to use.

The steering part comprises a fixed block, a connecting pin, an electromagnet and an armature, wherein the connecting pin is inserted into the fixed block and is used for connecting the fixed block with the tool apron fixed block, the tool apron fixed block rotates relative to the fixed block along the connecting pin, the electromagnet is arranged on the tool apron fixed block, the armature is arranged on the side surface of the fixed block, and the electromagnet and the armature are arranged to facilitate controllable control over the rotation of the tool apron fixed block through the electromagnet, so that the steering device is convenient to use.

According to the technical scheme, the electromagnet arranged on the tool apron fixing block and the armature arranged on the fixing block are distributed correspondingly on the same side up and down, the electromagnet can adsorb the armature, and the arrangement is convenient for controllably controlling the rotation of the tool apron fixing block through the electromagnet, so that the tool apron fixing block is convenient to use.

According to the technical scheme, the connecting pin is fixed on the tool apron fixing block through the pin, and the connecting pin is immovable relative to the tool apron fixing block, so that the torsion spring can drive the tool apron fixing block to rotate along the connecting pin, and the stable operation of the device is guaranteed, and the device is convenient to use.

According to the technical scheme, the torsion spring is arranged in the connecting pin, and the torsion force is applied to the torsion spring in advance, so that when the electromagnet is powered off, the cutter holder fixing block can rotate along the connecting pin under the action of the torsion spring, further, the rotation of the cutter is realized, and the situation of flash at the inflection point is effectively prevented.

Compared with the prior art, the utility model has the following beneficial effects:

according to the technical scheme, the micro air cylinder is utilized to push the cutter holder to controllably rotate along the cutter holder fixing block, so that the cutter leaning of the cutter is realized, the cutter holder fixing block is driven to rotate along the connecting pin relative to the fixing block by utilizing the connecting pin which is used for connecting the cutter holder fixing block and the fixing block and is provided with the torsion spring, the cutter is enabled to rotate at the cutting inflection point, the phenomenon of flash is effectively avoided, and meanwhile, the electromagnet is utilized to controllably control the rotation of the cutter holder fixing block and the fixing block, so that the cutter leaning device is convenient to use.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic perspective view of the knife rest;

FIG. 3 is a schematic perspective view of a steering section;

FIG. 4 is a schematic view of the steering section after rotation;

FIG. 5 is a cross-sectional view of the present utility model;

FIG. 6 is an exploded view of the present utility model;

reference numerals illustrate: the device comprises a cutter 1, a cutter leaning part 2, a cutter holder 21, a cutter holder fixing block 22, a pressing sheet 23, a micro cylinder 24, a fixing card 25, a steering part 3, a fixing block 31, a connecting pin 32, a torsion spring 33, an electromagnet 34, an armature 35, a connecting pin mounting hole 36, a limiting table 37 and a fixing sleeve 38.

Detailed Description

The following describes the technical solution in the embodiment of the present utility model in detail with reference to fig. 1 to 6 in the embodiment of the present utility model.

Example 1

As shown in fig. 1, a film cutting and leaning device comprises a cutter 1, a leaning part 2 and a turning part 3.

As shown in fig. 1, 4, 5 and 6, the blade rest 2 includes a blade holder 21, a blade holder fixing block 22, a presser piece 23, a micro cylinder 24 and a fixing card 25.

The cutter holder 21 is a U-shaped clamp, the cutter holder 21 is integrally hinged to the cutter holder fixing block 22, a cross arm below two vertical arms of the cutter holder 21 is thickened, the cutter 1 is detachably arranged on the side face of the cross arm thickened by the cutter holder 21, a cutter mounting groove is formed in the side face of the cutter holder 21 perpendicular to the two vertical arms in a concave mode, one end of the cutter 1 is placed in the cutter mounting groove, in order to prevent the cutter 1 from falling off and facilitate replacement of the cutter 1, a rectangular pressing piece 23 is fixed at the cutter mounting groove through screws, the pressing piece 23 is rectangular, the whole cover of the pressing piece 23 is arranged outside the cutter mounting groove, the pressing piece 23 is fixed on the cutter holder 21 through the screws, the surface of the pressing piece 23 is attached to the cutter 1, and the cutter 1 is stably fixed in the cutter holder 21.

Two groups of through holes penetrating through the vertical arms are formed in the two vertical arms of the tool holder 21 perpendicular to the vertical arms, the tool holder 21 is hinged to the tool holder fixing block 22 through one group of through holes, and each vertical arm of the tool holder 21 is hinged to the tool holder fixing block 22 independently by using a pin for facilitating installation of a subsequent micro cylinder 24.

The micro cylinder 24 is hinged with the tool rest 21 through another group of through holes, so that the tool rest 21 rotates along the hinged position under the action of the micro cylinder 24, and then the cutter 1 is controlled to lean against the cutter, and the two through holes on the tool rest 21 are distributed in a vertically staggered mode, so that the tool rest 21 can rotate along the hinged position under the pushing action of the micro cylinder 24.

The tool apron fixed block 22 is a rectangular metal block, two rectangular clamping tables are outwards protruded at one end of the lower surface of the tool apron fixed block 22 perpendicular to the tool apron fixed block 22, the two rectangular clamping tables are oppositely and alternately distributed, a circular through hole is formed in each rectangular clamping table, the tool apron 21 is hinged in the circular through hole, and the tool apron 21 can freely rotate along the hinged position.

The micro cylinder 24 is an existing push rod, the pressure of gas in the cylinder is adjustable, the function of a gas spring is achieved, one end of the micro cylinder 24 is hinged to the tool apron 21, the other end of the micro cylinder is fixed to the tool apron fixing block 22 through a fixing card 25, and when the angle between the cutter 1 and the adhesive film needs to be adjusted, the micro cylinder 24 can push the tool apron 21 to rotate.

The fixing card 25 is an L-shaped metal card, a cross arm of the fixing card 25 is fixed on the tool apron fixing block 22 by using a screw, a circular through hole is formed in a vertical arm of the fixing card 25, the other end of the micro cylinder 24 is inserted into the circular through hole, the micro cylinder 24 is fixed on the fixing card 25 by using two nuts, specifically, the two nuts are screwed on the micro cylinder 24, and the fixing card 25 is clamped between the two nuts, so that the fixing is completed.

In this embodiment, the fixing block 31 is located at the upper position and the connected holder fixing block 22 is located at the lower position.

Regarding the process of leaning on the cutter, the cutter 1 needs to be leaning on the cutter before cutting the film, when leaning on the cutter, the micro cylinder 24 stretches out and draws back to drive the cutter holder 21 to eccentrically rotate, so that the cutter holder 21 rotates, the gas pressure in the cylinder is adjustable at the moment, the function of a gas spring is achieved, and when the cutter 1 is attached to a wafer as required, the cutter leaning is completed, and the use is convenient.

In order to facilitate the installation of the subsequent electromagnet 34, a circular groove for installing the electromagnet 34 is formed on the side surface of the tool holder fixing block 22 and is perpendicular to the tool holder fixing block 22 in a concave manner, and the electromagnet 34 is embedded in the circular groove.

In order to facilitate the installation of the subsequent connecting pin 32, a circular hole for installing the connecting pin 32 is formed on the upper surface of the tool holder fixing block 22, close to one end of the tool holder 21, and perpendicular to the tool holder fixing block 22 in a concave manner, and meanwhile, in order to facilitate the fixing of the connecting pin 32 on the tool holder fixing block 22, a pin hole communicated with the hole for installing the connecting pin 32 is formed on the side surface of the tool holder fixing block 22, and the connecting pin 32 is fixed in the tool holder fixing block 22 by using a pin.

As shown in fig. 2, 3, 4 and 5, the steering portion 3 mainly includes a fixed block 31, a connecting pin 32, a torsion spring 33, an electromagnet 34, an armature 35 and a fixed sleeve 38.

The fixed block 31 is an L-shaped metal block, a cross arm of the fixed block 31 is attached to the upper surface of the tool apron fixed block 22, a connecting pin mounting hole 36 penetrating through the vertical arm of the fixed block 31 is formed in the vertical wall of the fixed block 31 perpendicular to the circle center of the vertical arm, the connecting pin mounting hole 36 is stepped, the diameter of the upper half part is larger than that of the lower half part, and the connecting pin 32 is inserted into the connecting pin mounting hole 36.

In order to facilitate the control of the rotation between the tool apron fixing block 22 and the fixing block 31, an armature 35 is correspondingly fixed on the side surface of the fixing block 31 and the side surface of the groove formed in the tool apron fixing block 22 for installing the electromagnet 34 by using a screw, the armature 35 is L-shaped angle iron, a cross arm of the armature 35 is fixed on the fixing block 31, a vertical arm of the armature 35 is suspended to be in contact with the electromagnet 34 on the tool apron fixing block 22, when the electromagnet 34 is electrified, the electromagnet 34 is tightly adsorbed with the armature 35, the electromagnet 34 is a conventional common device and is directly used in a commercially available way, and the electromagnet 34 is embedded in a circular groove formed in the side surface of the tool apron fixing block 22 for installing the electromagnet 34 and cannot fall.

The connecting pin 32 is a cylindrical pin, a circular hole penetrating through the connecting pin 32 is formed in the lower end of the connecting pin 32, the lower end of the connecting pin 32 can be fixed on the tool apron fixing block 22 through the hole and the pin, a torsion spring 33 is sleeved outside the connecting pin 32, one end of the torsion spring 33 is connected with the connecting pin 32, and a fixing sleeve 38 is sleeved outside the torsion spring 33.

The fixed sleeve 38 is a cylindrical pipe, the fixed sleeve 38 is integrally sleeved outside the torsion spring 33, a circle of flange table is arranged above the fixed sleeve 38, the other end of the torsion spring 33 is clamped on the flange table, the connecting pin 32 and the fixed sleeve 38 can axially rotate, the torsion spring 33 can generate torsion when the connecting pin 32 and the fixed sleeve 38 rotate, in order to limit the end part of the torsion spring 33 clamped on the flange table and prevent the torsion spring 33 from falling off the flange table, a nut is screwed at the upper end of the connecting pin 32, the end face of the nut is pressed on the end face of the flange table, and the torsion spring 33 can be tightly fixed on the flange table in the fixed sleeve 38 by screwing the nut.

As shown in fig. 1, the connecting pin 32, the torsion spring 33 and the fixing sleeve 38 are integrally inserted into the connecting pin mounting hole 36, and in order to prevent the fixing sleeve 38 from rotating under the action of the torsion spring 33, two limiting tables 37 are protruded on the end surface of the reduced diameter portion of the connecting pin mounting hole 36 in the fixing block 31 perpendicularly to the end surface, and the flange table on the fixing sleeve 38 is clamped in the limiting tables 37, so that the rotation of the fixing sleeve 38 is effectively avoided.

In order to enable the tool apron fixing block 22 to rotate relative to the fixing block 31 along the connecting pin 32, rotation of the cutter 1 is achieved, torsion force is applied to the torsion spring 33 in advance, so that when the electromagnet 34 and the armature 35 are disconnected and adsorbed, the tool apron fixing block 22 rotates under the action of the torsion spring 33, a plurality of grooves for placing pins at the end part of the torsion spring 33 can be formed in the flange table on the fixing sleeve 38 in the radial direction with respect to presetting of the torsion force of the torsion spring 33 and presetting of different torsion forces can be achieved by changing fixing positions of the pins of the torsion spring 33 on the flange table.

The use process of the embodiment is as follows: when the cutter is leaned against, the micro cylinder 24 stretches out and draws back to drive the cutter holder 21 to eccentrically rotate, the cutter holder 21 is rotated, the gas pressure in the cylinder is adjustable, the function of a gas spring is achieved, when the cutter 1 is attached to a wafer according to requirements, the cutter 1 begins to cut a glue film along the edge of the wafer after the cutter is finished, when the cutter is cut to an inflection point, the electromagnet 34 is powered off, the adsorption of the armature 35 is canceled, at the moment, the connecting pin 32 rotates under the action of the torsion spring 33, the lower end of the connecting pin 32 is fixedly connected with the cutter holder fixing block 22, the connecting pin 32 drives the cutter holder fixing block 22 to integrally rotate, the phenomenon of flash at the inflection point is effectively avoided, when the inflection point needs to be reset, the electromagnet 34 is electrified to adsorb and drive the cutter holder fixing block 22 and the fixing block 31, and meanwhile, the torsion spring 33 is subjected to secondary power storage.

The above embodiments are only for illustrating the technical idea of the present utility model, and the protection scope of the present utility model is not limited thereto, and any modification made on the basis of the technical scheme according to the technical idea of the present utility model falls within the protection scope of the present utility model.

Claims (8)

1. The utility model provides a cut membrane and lean on sword device, includes cutter (1) its characterized in that: still include leaning on sword portion (2) and turn to portion (3), lean on and be connected through connecting pin (32) between sword portion (2) and the portion that turns to (3), lean on the controllable rotation of sword portion (2) along connecting pin (32) relative turn to portion (3), cutter (1) can dismantle and set up on leaning on blade holder (21) in sword portion (2), blade holder (21) articulates on blade holder fixed block (22), blade holder (21) follow the controllable rotation of articulated department under the effect of microcylinder (24).

2. The film cutting knife device of claim 1, wherein: the cutter leaning part (2) comprises a cutter seat (21), a cutter seat fixing block (22) and a micro air cylinder (24), wherein the cutter (1) is detachably arranged on the cutter seat (21), the cutter seat (21) is hinged on the cutter seat fixing block (22), one end of the micro air cylinder (24) is hinged on the cutter seat (21), the other end of the micro air cylinder is connected on the cutter seat fixing block (22), and the cutter seat (21) is hinged along the cutter seat fixing block (22) and controllably rotates through the micro air cylinder (24).

3. The film cutting knife device of claim 2, wherein: the axis of the micro cylinder (24) on the tool apron (21) is not concentric with the hinging axis of the tool apron (21) on the tool apron fixing block (22), and the axis of the micro cylinder and the hinging axis of the tool apron (21) are eccentrically arranged.

4. The film cutting knife device of claim 2, wherein: the side surface of the tool apron fixing block (22) is perpendicular to the tool apron fixing block (22) and is provided with a groove for installing the electromagnet (34) in a concave way.

5. The film cutting knife device of claim 1, wherein: steering part (3) are including fixed block (31), connecting pin (32), electro-magnet (34) and armature (35), connecting pin (32) are inserted inside fixed block (31) to be connected fixed block (31) and blade holder fixed block (22) through connecting pin (32), blade holder fixed block (22) are rotatory along connecting pin (32) for fixed block (31), and electro-magnet (34) are installed on blade holder fixed block (22), and armature (35) are installed in the side of fixed block (31).

6. The film cutting knife device of claim 5, wherein: the electromagnets (34) arranged on the tool apron fixing block (22) and the armatures (35) arranged on the fixing block (31) are correspondingly distributed on the same side up and down, and the electromagnets (34) can absorb the armatures (35).

7. The film cutting knife device of claim 5, wherein: the connecting pin (32) is fixed on the tool holder fixing block (22) through a pin, and the connecting pin (32) is immovable relative to the tool holder fixing block (22).

8. The film cutting knife device of claim 5, wherein: a torsion spring (33) is provided in the connection pin (32), and a torsion force is applied to the torsion spring (33) in advance.