CN110723346A - a laminating machine - Google Patents

Abstract

The invention discloses a laminating machine, which belongs to the technical field of magnetic material production. The film sticking machine of the present invention includes a conveying device, a positioning device, a film sticking device and a control device. The conveying device is used for conveying an adhesive tape, and the adhesive tape includes a first release film and a plurality of uniformly arranged on the first release film along the length direction and the film to be applied. The first release film is cut with a plurality of first release film units overlapping with each tape unit; the positioning device is used to place the parts to be filmed and position the parts to be filmed; When the unit is aligned with the film piece to be pasted, a certain pressure is applied to make the tape unit adhere to the film piece to be pasted; the control device is used to control the single feeding length of the tape to be equal to the starting point of the two adjacent tape units in the glue feeding direction Spacing between locations. The film laminating machine of the invention has high lamination precision, the adhesive tape and the magnetic sheet are firmly bonded after lamination, and the appearance is beautiful.

Description

a laminating machine

technical field

The invention relates to the technical field of magnetic material production, in particular to a semi-automatic laminating machine for attaching an ultra-thin tape on the surface of a magnetic sheet (transmitter end) for wireless charging.

Background technique

At present, magnetic sheets are widely used in various industries. For example, NFC magnetic sheets and soft ferrite magnetic sheets for wireless charging will be widely used in handheld electronic devices.

Films are often needed on the magnetic sheet, but the magnetic sheet is made of ceramic wear-resistant materials. Generally, when the thickness exceeds 0.2mm, the mold will be rapidly worn due to the falling magnetic powder, so the magnetic sheet with a thickness of 0.4-1.0mm cannot use the mold. For punching and forming, only sintering can be used to machine into the desired shape and then film. The current film sticking method usually adopts manual sticking tape on both sides of the magnetic sheet for protection, which has low work efficiency and poor fit appearance, which cannot meet the precision requirements.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a film laminating machine with high lamination precision and more beautiful appearance of the obtained product.

For this purpose, the present invention adopts the following technical solutions:

A laminating machine, comprising:

A conveying device is used for conveying an adhesive tape, the adhesive tape includes a first release film and a plurality of adhesive tape units that are uniformly arranged on the first release film along the length direction and have the same outer contour as the part to be filmed, the first release film A plurality of first release film units overlapping with each of the tape units are cut on the release film;

a positioning device, used for placing the parts to be filmed and positioning the parts to be filmed;

a film sticking device for applying pressure when the adhesive tape unit is aligned with the to-be-filmed part, so that the adhesive-tape unit is attached to the to-be-filmed part;

The control device is used for controlling the single feeding length of the adhesive tape to be equal to the distance h between the starting positions of the two adjacent adhesive tape units in the feeding direction.

Further, the conveying path P defined by the conveying device behind the positioning device has a bend.

Further, the conveying device includes:

a first waste discharge wheel, the first waste discharge wheel is used for winding the first release film after the film sticking operation; and

A receiving wheel, the receiving wheel is arranged between the positioning device and the first waste discharge wheel, and a plurality of positioning bolts are evenly arranged on the outer circumference of the receiving wheel, and the positioning bolts are used for connecting with the first waste discharge wheel. The positioning holes on a release film are matched, and the arc length between the adjacent positioning pins and the distance between the adjacent positioning holes are equal to the distance h between the starting positions of two adjacent tape units.

Further, the first waste discharge wheel is located above the receiving wheel.

Further, the conveying device includes:

a feeding wheel, the feeding wheel is used for placing the adhesive tape, and the adhesive tape further comprises a second release film attached to the side of the adhesive tape unit facing away from the first release film;

A second waste discharge wheel, the second waste discharge wheel is used for peeling and winding the second release film of the adhesive tape on the feeding wheel; and

A guide wheel, the guide wheel is used to guide the adhesive tape after peeling off the second release film to the film sticking device.

Further, the positioning device includes a worktable, a right-angle positioner disposed on the worktable, and a guide rail, and the to-be-filmed piece attached to the tape unit can move along the guide rail.

Further, the right-angle positioner and the guide rail are detachably arranged on the workbench in a position-adjustable manner.

Further, the positioning device is provided with a through hole at the position where the piece to be filmed is placed, and the film bonding machine further includes a sensor, and the sensor is used to detect whether there is a position on the positioning device through the through hole. the to-be-filmed piece.

Further, the film laminating machine includes a pressing roller disposed on the side of the first release film away from the tape unit, a first power device for driving the pressing roller to move in the vertical direction, and a first power device for driving the The second power device for moving the pressing roller in the horizontal direction.

Further, the laminating machine is a magnetic film laminating machine.

The beneficial effects of the present invention are as follows:

In the film laminating machine provided by the present invention, the adhesive tape used is cut with an adhesive tape unit and a first release film unit with the same contour as the magnetic sheet, and one of the adhesive tape units is aligned with the magnetic sheet before the laminating machine is started. During the working process of the laminating machine , the control device controls the length of a single feeding of the tape layer to be equal to the distance between the starting positions of two adjacent tape units in the feeding direction, thereby ensuring that each magnetic sheet is aligned with the tape unit, and the film is attached. High precision, the film tape and the magnetic sheet are firmly bonded, and the appearance is more beautiful.

Description of drawings

Fig. 1 is the structural schematic diagram of the laminating machine provided by the specific embodiment of the present invention when it is not laminating;

Fig. 2 is the structural representation of the adhesive tape provided by the specific embodiment of the present invention;

Fig. 3 is the side view of the adhesive tape provided by the specific embodiment of the present invention;

Fig. 4 is the structural schematic diagram of the laminating machine provided by the specific embodiment of the present invention when laminating;

5 is a schematic structural diagram of a receiving wheel provided by a specific embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a positioning device provided by a specific embodiment of the present invention.

In the picture:

10, conveying device; 20, positioning device; 30, film sticking device; 40, tape; 50, magnetic sheet; 60, sensor;

11. The first row waste wheel; 12, the receiving wheel; 13, the feeding wheel; 14, the second row waste wheel; 15, the guide wheel; 121, the positioning bolt;

21, workbench; 22, right-angle positioner; 23, guide rail; 24, through hole; 25, positioning groove;

31. Press roller; 32. First power unit; 33. Second power unit;

41, tape layer; 42, first release film; 43, second release film; 411, tape unit; 421, positioning hole.

Detailed ways

The technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

The specific embodiment of the present invention provides a film laminating machine, which is preferably, but not limited to, a laminating machine for various magnetic sheets such as NFC magnetic sheets, soft ferrite magnetic sheets for wireless charging, etc., and can also be used for any other suitable occasion.

As shown in FIG. 1 , the laminating machine includes a conveying device 10 , a positioning device 20 , a laminating device 30 and a control device. As shown in FIG. 2 and FIG. 3 , the adhesive tape 40 used by the laminating machine includes three layers, namely the adhesive tape layer 41 and the first release film 42 and the second release film 43 respectively attached to both sides of the adhesive tape layer 41 . , the first release film 42 and the second release film 43 are preferably, but not limited to, PET films, and may also be any other release films. The second release film 43 has not been cut, and the adhesive tape layer 41 includes a plurality of adhesive tape units 411 uniformly arranged along the length direction with the same outer contour as the film to be attached. The adhesive tape units 411 may be single-sided tape or double-sided tape. As long as it is ensured that the side of the tape unit 411 for bonding with the piece to be filmed (in this embodiment, the side of the tape unit 411 facing away from the first release film 42 is used for bonding with the piece to be filmed) is an adhesive surface, the adjacent The adhesive tape units 411 may have a certain distance or seamless fit, and the first release film 42 is cut with a plurality of first release film units that overlap with each adhesive tape unit 411 (due to the first release film in FIG. 2 ). The film unit is covered by the tape unit 411, so it is not shown), that is, the outer contour and position of each first release film unit and each tape unit 411 are the same. Each first release film unit and the rest of the first release film 42 may be completely cut off, but can still be connected to the rest of the first release film 42 through the adhesiveness of the adhesive tape unit 411; The film unit and the rest of the first release film 42 can also be connected by a dotted cutting line. Under a certain external force, each first release film unit and the rest of the first release film 42 are separable. The width of the first release film 42 is preferably larger than the width of the tape unit 411 . More preferably, both sides of the first release film 42 protrude from both sides of the adhesive tape unit 411 .

Please continue to refer to FIG. 1 and FIG. 4 , the conveying device 10 is used for peeling off the adhesive tape layer 41 from the second release film 43 attached to one side of the adhesive tape layer 41 , and for conveying the peeled adhesive tape layer 41 and attaching to the adhesive tape layer 41 . The first release film 42 on the other side of the tape layer 41 . The arrow A in FIG. 2 indicates the adhesive tape layer 41 , and the arrow B indicates the first release film 42 . The positioning device 20 is used for placing and positioning the film-to-be-affixed part, and the film-to-be-affixed part in this specific embodiment is a magnetic sheet 50 . The film sticking device 30 is used to apply a certain pressure when the tape unit 411 is aligned with the to-be-film-applied piece, so that the tape unit 411 is attached to the to-be-film piece through its side (adhesive surface) facing away from the tape unit 411 . The control device is used to control the length of a single feeding of the adhesive tape layer 41 to be equal to the distance h between the starting positions of the two adjacent adhesive tape units 411 in the feeding direction. It should be noted that the second release film 43 is beneficial to protect the adhesive tape layer 41. In other specific embodiments, the adhesive tape 40 may also not include the second release film 43 or peel off the second release film 43 in advance. Correspondingly, The conveying device 10 does not need to perform a peeling operation.

In the film laminating machine provided by this specific embodiment, the adhesive tape 40 used is cut with an adhesive tape unit 411 and a first release film unit with the same outline as the magnetic sheet 50, and one of the adhesive tape units 411 and the magnetic sheet 50 are cut before the laminating machine starts. Alignment, during the working process of the laminating machine, the control device controls the length of the single glue feeding of the tape layer 41 to be equal to the distance h between the starting positions of the two adjacent tape units 411 in the glue feeding direction, thereby ensuring that every Each of the magnetic sheets 50 is aligned with the tape unit 411 , the filming precision is high, the adhesive tape and the magnetic sheet are firmly bonded after filming, and the appearance is more beautiful.

Please continue to refer to FIG. 1 and FIG. 4 , the conveying device 10 includes a feeding wheel 13 , a second waste discharge wheel 14 and a guide wheel 15 , the feeding wheel 13 is used for placing the tape 40 before peeling, and the second waste discharge wheel 14 is used for The second release film 43 on the tape 40 on the feeding wheel 13 is peeled off and wound, and the guide wheel 15 is used to guide the tape 40 after peeling off the second release film 43 to the film sticking device 30 . The feeding wheel 13 is preferably, but not limited to, a tensioner. The number and distribution of the guide wheels 15 in this specific embodiment can be set according to specific requirements. In this specific embodiment, when the adhesive tape 40 is guided to the film sticking device 30 through the guide wheel 15 , the adhesive tape layer 41 is located under the first release film 42 , and the positioning device 20 is located under the adhesive tape layer 41 . In other specific embodiments, when the adhesive tape 40 is guided to the film sticking device 30 through the guide wheel 15 , the adhesive tape layer 41 is located above the first release film 42 , and the positioning device 20 is located above the adhesive tape layer 41 . In other specific embodiments where the adhesive tape 40 does not include the second release film 43 , the conveying device 10 does not need to be provided with the second waste discharge wheel 14 .

In order to be able to adjust when the lateral relative position of the tape 40 and the magnetic sheet 50 is offset, the film laminating machine also includes a deviation correction device, and the deviation correction device includes a matching screw and a nut. Connect with nut.

The magnetic sheet 50 moves forward with the tape 40 after the filming operation, and the magnetic sheet 50 , the tape unit 411 and the first release film unit that are attached together can pass through the first release film unit and the rest of the first release film 42 It is separated from the rest of the first release film 42 by the cutting line in between. The separation can be achieved by the conveying device 10 having a bend in the conveying path P defined by the film lamination operation, and the magnetic sheet 50, the tape unit 411 and the first release film unit after lamination can be separated from the first separation film at this bend. The remainder of the mold membrane 42 is separated. Preferably, the bending portion is upwardly bent relative to the horizontal plane, and the magnetic sheet 50 after the film can be dropped under the action of gravity. The bending angle of the bend is designed according to specific requirements.

Please continue to refer to FIG. 1 , FIG. 4 and FIG. 5 , the conveying device 10 further includes a first waste discharge wheel 11 and a receiving wheel 12 , the first waste discharge wheel 11 is disposed behind the positioning device 20 , and the receiving wheel 12 is disposed in the positioning device. Between 20 and the first waste discharge wheel 11, the first waste discharge wheel 11 is used to rewind the first release film 42 after the film sticking operation. The pins 121 are used to cooperate with the positioning holes 421 on the first release film 42 . The positioning holes 421 are preferably arranged on the part of the first release film 42 protruding from the tape layer 41 , and the arc length between the adjacent positioning pins 121 The distance between the adjacent positioning holes 421 is equal to the distance h between the starting positions of the two adjacent tape units 411 . The size of the receiving wheel 12 and the number of the positioning pins 121 can be set according to specific requirements. The conveying device 10 preferably includes at least two oppositely arranged receiving wheels 12. Correspondingly, positioning holes 421 are respectively provided on both sides of the first release film 42, and the positioning pins 121 on the two receiving wheels 12 are respectively connected with the first The positioning holes 421 on both sides of the release film 42 are matched with each other. The first waste discharge wheel 11 is preferably located above the receiving wheel 12 , so that an upwardly bent conveying path P is defined at the receiving wheel 12 .

After the first release film 42 is separated from the first release film unit, the strength is low, and it is difficult to receive the material through a large pulling force. The first release film 42 after the film is pulled forward, which can prevent the first release film 42 from being pulled off, which is convenient for material collection; 421 cooperates to assist in judging whether the single glue feeding length is the distance h between the starting positions of two adjacent tape units 411, and finds and handles in time when the laminating machine has errors.

Please refer to FIG. 4 and FIG. 6 , the positioning device 20 includes a worktable 21 , a right-angle positioner 22 disposed on the worktable 21 and a guide rail 23 . The right-angle positioner 22 and the guide rail 23 are preferably, but not limited to, an integral structure. The structure of the positioning device 20 in this embodiment is simple, and the positioning effect is good. In this specific embodiment, after the previous magnetic sheet 50 completes the mold-applied operation and leaves the positioning device 20 , the next magnetic sheet 50 can be placed on the positioning device 20 manually or automatically.

In order to be able to adjust when the relative positions of the tape 40 and the magnetic sheet 50 are offset, the right-angle positioner 22 and the guide rail 23 are arranged on the workbench 21 in a position-adjustable and detachable manner. The adjustment method of the position of the right-angle positioner 22 and the guide rail 23 is not limited. For example, a plurality of positioning grooves 25 are respectively provided on the right-angle positioner 22 and the worktable 21, and the positioning pieces are inserted through different positioning grooves 25 therein to adjust the right-angle positioner 22. s position.

In this specific embodiment, the positioning device 20 is provided with a through hole 24 at the position where the film to be attached is placed, and a sensor 60 connected to the control device is arranged below the through hole 24 , and the sensor 60 is used to detect whether the positioning device 20 is placed on the film to be attached. pieces. The sensor 60 is preferably, but not limited to, an infrared sensor 60, a photoelectric sensor 60, and the like. The controller can control the laminating machine to start only when the parts to be lamination are placed on the positioning device 20 .

The structure of the film sticking device 30 is not limited, and the tape unit 411 can be pressed together with the to-be-filmed piece when they are aligned. Specifically, the film sticking device 30 is movably disposed on the side of the first release film 42 facing away from the adhesive tape layer 41 . More specifically, the film sticking device 30 includes a pressing roller 31 disposed on the side of the first release film 42 away from the adhesive tape layer 41 , a first power device 32 for driving the pressing roller 31 to move in a vertical direction, and a first power device 32 for driving the pressing roller. 31 A second power unit 33 that moves in the horizontal direction.

Below in conjunction with Fig. 1 and Fig. 4, briefly introduce the working process of the laminating machine provided by this specific embodiment:

The tape 40 is sleeved on the feeding wheel 13, the second release film 43 of the tape 40 is peeled off and fixed on the second waste discharge wheel 14, and then the remaining first release film 42 and the tape layer 41 of the tape 40 are sequentially After passing through the guide wheel 15, under the pressing roller 31, and after the receiving wheel 12, the first release film 42 is fixed on the first waste discharge wheel 11, and the adhesive tape 40 is located above the positioning device 20. One side of the mold film 42 faces the positioning device 20 , and the positioning pin 121 on the take-up wheel 12 passes through a positioning hole 421 of the first release film 42 .

Place the magnetic sheet 50 at the right-angle positioner 22 of the positioning device 20 , and adjust the offset adjustment device, the position of the right-angle positioner 22 and the position of the tape 40 so that the magnetic sheet 50 is completely aligned with one of the tape units 411 .

Start the film laminating machine. After the sensor 60 detects that the magnetic sheet 50 is placed at the positioning device 20, the laminating device 30 is activated, and the first power device 32 drives the pressing roller 31 to move downward until the pressing roller 31 is pressed against the first release film. 42 , the second power device 33 drives the first power device 32 and the pressing roller 31 to move in a preset manner in the horizontal direction, so that the tape unit 411 is attached to the magnetic sheet 50 , and after the film is pasted, the pressing roller 31 returns to its original position .

The first waste discharge wheel 11, the feeding wheel 13, and the second waste discharge wheel 14 are all tensioning wheels, which can respectively fine-tune the size of the tension so as to keep the tape in a tensioned state at any time; after the control device receives the signal from the sensor 60 According to the set program, the receiving wheel 12 and the guide wheel 15 of the conveying device 10 are controlled to rotate until the receiving wheel 12 rotates the distance of the arc length of the receiving wheel 12 between the two adjacent positioning pins 121 , and the control device controls the conveying device 10 Stop the glue feeding. At this time, the positioning pin 121 is passed through the next positioning hole 421, and the next tape unit 411 is aligned with the next magnetic sheet 50 placed on the right-angle positioner 22. A film job.

During the process of feeding glue from the conveying device 10, the magnetic sheet 50 after the film is moved to the receiving wheel 12. Because the conveying path P is bent, the magnetic sheet 50 after the film is dropped under the action of gravity, and the moving forward is different. The first release film 42 is separated.

The technical principle of the present invention has been described above with reference to the specific embodiments. These descriptions are only for explaining the principle of the present invention, and should not be construed as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can think of other specific embodiments of the present invention without creative efforts, and these methods will all fall within the protection scope of the present invention.

Claims (10)

1. a laminating machine, is characterized in that, comprises: A conveying device is used for conveying an adhesive tape, the adhesive tape includes a first release film and a plurality of adhesive tape units that are uniformly arranged on the first release film along the length direction and have the same outer contour as the part to be filmed, the first release film A plurality of first release film units overlapping with each of the tape units are cut on the release film; a positioning device, used for placing the parts to be filmed and positioning the parts to be filmed; a film sticking device for applying pressure when the adhesive tape unit is aligned with the to-be-filmed part, so that the adhesive-tape unit is attached to the to-be-filmed part; The control device is used for controlling the single feeding length of the adhesive tape to be equal to the distance h between the starting positions of the two adjacent adhesive tape units in the feeding direction. 2 . The laminating machine according to claim 1 , wherein the conveying path P defined by the conveying device behind the positioning device has a bend. 3 . 3. The laminating machine according to claim 1, wherein the conveying device comprises: a first waste discharge wheel, the first waste discharge wheel is used for winding the first release film after the film sticking operation; and A receiving wheel, the receiving wheel is arranged between the positioning device and the first waste discharge wheel, and a plurality of positioning bolts are evenly arranged on the outer circumference of the receiving wheel, and the positioning bolts are used for connecting with the first waste discharge wheel. The positioning holes on a release film are matched, and the arc length between the adjacent positioning pins and the distance between the adjacent positioning holes are equal to the distance h between the starting positions of two adjacent tape units. 4. The laminating machine according to claim 3, wherein the first waste discharge wheel is located above the take-up wheel. 5. The laminating machine according to claim 1, wherein the conveying device comprises: a feeding wheel, the feeding wheel is used for placing the adhesive tape, and the adhesive tape further comprises a second release film attached to the side of the adhesive tape unit facing away from the first release film; A second waste discharge wheel, the second waste discharge wheel is used for peeling and winding the second release film of the adhesive tape on the feeding wheel; and A guide wheel, the guide wheel is used to guide the adhesive tape after peeling off the second release film to the film sticking device. 6. The laminating machine according to any one of claims 1 to 5, wherein the positioning device comprises a worktable, a right-angle positioner and a guide rail arranged on the worktable, which are attached to the tape unit The latter member to be filmed can move along the guide rail. 7 . The film laminating machine according to claim 6 , wherein the right-angle positioner and the guide rail are detachably and position-adjustably provided on the worktable. 8 . 8. The laminating machine according to any one of claims 1 to 5, wherein the positioning device is provided with a through hole at the position where the piece to be lamination is placed, and the laminating machine further comprises a sensor, so The sensor is used for detecting whether the film-to-be-attached member is placed on the positioning device through the through hole. 9. The laminating machine according to any one of claims 1 to 5, characterized in that, the laminating machine comprises a pressing roller arranged on the side of the first release film away from the tape unit, for driving the A first power device for moving the pressing roller in a vertical direction and a second power device for driving the pressing roller to move in a horizontal direction. 10. The laminating machine according to any one of claims 1 to 5, wherein the laminating machine is a magnetic sheet laminating machine.

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