CN203282799U - Novel FPC automatic sticking device - Google Patents

Abstract

A novel FPC automatic sticking device of the utility model belongs to the technical field of pasting devices, in particular to the technical field of pasting devices for automatically pasting flat FPCs on products with three-dimensional shapes such as a touch mouse. The novel FPC automatic pasting device of the present utility model includes an alignment device, a vacuuming device and a bubble scraping device, wherein the bubble scraping device includes a bubble scraping device body, an elastic pressure head, a fixing jig and an elastic pressure head motion control device. Wherein, the elastic pressure head and the fixing jig are arranged on the body of the bubble scraping device. The elastic indenter is made of soft material and determined according to the shape of the central axis of the three-dimensional component. The technical scheme of the utility model has the characteristics of simple structure, high bonding strength, less air bubbles, stable quality of pasted products, high efficiency, semi-automatic operation and the like.

Description

New FPC automatic pasting device

technical field

The utility model relates to the technical field of pasting devices, in particular to a novel FPC automatic pasting device for pasting FPCs on three-dimensional products such as mice.

Background technique

PCB (Printed Circuit Board), known as printed circuit board or printed circuit board, is an important electronic component, a support for electronic components, and a provider of electrical connections for electronic components. Because it is made by electronic printing, it is called a "printed" circuit board, also referred to as PCB for short.

FPC (Flexible Printed Circuit), called flexible circuit boards, flexible printed circuit boards, flexible circuit boards, etc., flexible circuit boards are made of polyimide or polyester film with high reliability. Excellent flexible printed circuit board, also referred to as soft board or FPC, has the characteristics of high wiring density, light weight and thin thickness.

With the diversified development of human-machine interface applications, more and more touch products appear in the application market, among which the touch mouse is a very important category, especially with the launch of the WIN8 operating system, touch products are still There is a lot of room for market development. At present, the touch mouse products on the market are basically designed to fit a PCB and the upper cover parts to realize the touch sensing operation, and most of them are designed using a flexible FPC. It fits the upper cover of the two-dimensional shape, and in order to maintain the advanced appearance of the product and the comfort of operation, the upper cover of the mouse of some manufacturers chooses a three-dimensional shape, which presents a big challenge: how to integrate a The flat-shaped FPC is attached to the three-dimensional upper cover, and according to the technical requirements of the touch, the bonding strength is maximized and the air bubbles are minimized. The quality of the FPC paste is directly related to the performance of the product on the touch, and it is also It is related to product test yield, return rate, rework hours and brand reputation.

Therefore, an efficient, reliable, and cheap bonding method needs to be developed and applied to the production process to achieve a sufficiently high bonding strength between the FPC and the two components of the specific product. At the same time, the minimization of air bubbles is required. Minimizing air bubbles is to achieve stable product quality. Controllable process parameters also need to be defined digitally. Obviously, it is difficult to realize these requirements by completely relying on manual operation. In this context, the research and development of a paste machine that can effectively paste FPC to three-dimensional shape components such as a touch mouse has become a topic that major manufacturers and engineers and technicians are constantly looking for.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is to provide a new type of FPC automatic pasting device for pasting FPC on three-dimensional products such as mice. , high efficiency, semi-automatic operation and so on.

The purpose of this utility model is achieved by the following technical solutions:

A new type of FPC automatic pasting device includes a positioning device, a vacuum device and a bubble scraping device, wherein the bubble scraping device includes a bubble scraping device body, an elastic pressure head, a fixing jig, and an elastic pressure head motion control device; The head and the fixed jig are arranged on the body of the bubble scraping device. The elastic indenter is made of soft elastic material. The elastic indenter is determined according to the shape of the central axis of the two-dimensional component. The arc of the central axis is consistent, that is, the elastic indenter is set as a cylindrical shape with a concave arc, and the concave arc is consistent with the arc of the central axis of the three-dimensional component, which can ensure that the elastic indenter is pressed against the component The position of the central axis is more bridged. Usually, the three-dimensional parts are bilaterally symmetrical, so that the radian of the bottom shape of the elastic indenter can be designed and manufactured based on the position of the symmetrical line of the central axis of the part, so as to better achieve the effects of pasting and removing air bubbles.

The soft elastic material includes polyurethane elastic material with Shore hardness of 50 degrees. Polyurethane, also known as polyurethane, and polyurethane elastomer has good physical and chemical properties, which can ensure the effective sticking and removal of air bubbles by adapting to the different shapes of the upper cover of three-dimensional shape parts in the air removal operation.

The alignment device and the vacuuming device are integrated.

The alignment device, the vacuum device and the bubble scraping device are integrated.

The alignment device includes a groove-shaped structure conforming to the shape of the three-dimensional component, and a vacuum suction hole is arranged at the bottom of the groove of the groove-shaped structure.

There are plural vacuum suction holes.

The vacuuming device includes a vacuum cavity connected to the vacuum suction hole of the alignment device, a vacuum interface connected to the vacuum cavity, a vacuum valve is arranged at the vacuum interface, and the switching state of the vacuum valve is controlled by a foot switch .

The elastic pressure head motion control device includes an electric control device, an air source pressure control module, a PLC program control module, a cylinder, a motor and a rotating shaft, wherein the elastic pressure head is connected to one end of the cylinder and one end of the rotating shaft Connected, the motor is connected with the rotating shaft.

The elastic pressure head is connected with one end of the rotating shaft, the cylinder is connected with the motor through the L-shaped connecting block, and the motor is connected with the rotating shaft.

The elastic pressure head is connected with one end of the rotating shaft through a U-shaped clamp.

The main operating steps of the novel FPC automatic pasting device of the present utility model are as follows:

According to the three-dimensional figure of the three-dimensional shape part (such as the upper cover of the mouse), an aluminum alloy is used to process a shape groove that is completely consistent with the three-dimensional shape part (such as the upper cover of the mouse), that is, the groove structure of the alignment device is made, and the groove is consistent with the three-dimensional The shape parts (such as the upper cover of the mouse) are completely consistent, and then the FPC and the three-dimensional shape parts to be pasted (such as the upper cover of the mouse) are placed in the groove of the alignment device for positioning, and the vacuum valve switch is controlled by the foot switch State, and then form the vacuum state of the vacuum cavity, and perform preliminary vacuum suction and compression connection between the FPC and the three-dimensional shape parts to be pasted.

Next, place the FPC and the three-dimensional shape parts (hereinafter referred to as semi-finished products) that have been preliminarily compressed and connected in the fixed jig of the bubble scraping device. The bubble scraping device is equipped with a soft elastic material through a special shape design, that is, The elastic indenter is determined according to the shape of the central axis of the three-dimensional component, and the concave arc of the elastic indenter matches the arc of the central axis of the three-dimensional component.

The soft elastic material includes polyurethane elastic material with Shore hardness of 50 degrees.

Three-dimensional parts are usually left-right symmetric shapes, and the radian of the bottom shape of the elastic indenter can be designed and manufactured based on the symmetrical line of the central axis of the part, so as to ensure that the elastic indenter is relatively close when pressed against the central axis of the part. In this way, the elastic pressure head part that can adapt to the change of three-dimensional shape, the elastic pressure head is controlled by the elastic pressure head motion control device, first driven by the cylinder to descend, and the elastic pressure head is pressed against the semi-finished product, and then according to the preset The program starts the motor, and the rotation shaft of the motor drives the elastic pressure head to move from the middle of the semi-finished product to both sides respectively, which not only realizes the pressing and pasting between the FPC and the three-dimensional upper cover, but also achieves the effect of eliminating air bubbles.

Through the above-mentioned technical scheme of the utility model, the new FPC automatic pasting device of the utility model very effectively solves the problem that a flat FPC is pasted on a three-dimensional shape part, and its design is reasonable, the mechanical structure is simple, and the equipment cost is relatively low. It is low, and it realizes lamination and eliminates air bubbles in one operation, making the pasting process simple. Moreover, the utility model also very effectively solves the hidden dangers of product quality caused by unstable manual operation, and greatly reduces the influence of human factors such as manual fatigue on product quality, making the product quality more stable and reliable. The technology of the utility model has strong versatility and is suitable for popularization of similar applications.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of a specific embodiment of the alignment device and the vacuum device of the present invention;

Fig. 2 is a three-dimensional structural schematic diagram of a specific embodiment of the vacuum pumping device of the present invention;

Fig. 3 is a structural schematic diagram of a specific embodiment of the bubble scraping device of the present invention;

Fig. 4 is a schematic diagram of the connection structure of the elastic pressure head, the motor, the rotating shaft and the cylinder of the air bubble scraping device of the present invention;

Fig. 5 is a structural schematic diagram of a specific embodiment of the elastic pressure head of the present invention.

Among them, including cylinder 1, motor protection device 2, electric control device 3, motor 4, rotating shaft 5, elastic pressure head 6, fixing jig 7, alignment device 8, vacuum device 9, L-shaped connecting block 10, U Type fixture 11, bubble scraping device body 12, vacuum suction hole 13, vacuum chamber 14, vacuum interface 15, vacuum valve 16, foot switch 17, air source pressure control module 18, PLC program control module 19, touch Mouse upper cover 20, FPC21, cylinder guide rail 22.

Detailed ways

The specific embodiment of the utility model is described in detail below in conjunction with accompanying drawing:

As shown in Fig. 1, Fig. 2 and Fig. 3, a kind of novel FPC automatic pasting device comprises alignment device 8, vacuum device 9 and scraping air bubble device, and wherein, alignment device 8 is used for FPC21 and the three-dimensional shape to be pasted ( For example, the upper cover of the touch mouse, hereinafter generally referred to as the upper cover of the touch mouse 20) is initially aligned and pasted, and the vacuum device 9 initially pastes the FPC21 and the upper cover of the touch mouse 20 to be pasted by vacuuming, and the bubble scraping device passes through The preliminarily positioned and pasted semi-finished products are processed by scraping off air bubbles and fastening and pasting, and then the work of pasting the FPC21 on the upper cover 20 of the touch mouse is completed.

In order to make the structure simple and compact, the alignment device 8 and the vacuuming device 9 can be set as an integrated structure, or can be set separately, and this specific embodiment is preferably set as an integrated structure.

In the same way, the air bubble scraping device, the alignment device 8 and the vacuuming device 9 can also be set as an integrated structure, and at the same time, in order to facilitate the assembly line operation, it is also possible to consider the air bubble scraping device, the alignment device 8 and the vacuuming device 9 separately set up.

As shown in FIG. 3 , the air bubble scraping device includes a body 12 of the air bubble scraping device, an elastic pressure head 6 , a fixing jig 7 and a movement control device for the elastic pressure head. Wherein, the bubble scraping device body 12 is used to carry and support each part in the whole bubble scraping device, so the elastic pressure head 6 and the fixed jig 7 can be arranged on the bubble scraping device body 12, and the elastic pressure head can also be moved The control device is arranged on the body 12 of the bubble scraping device, or for remote control, the elastic pressure head movement control device may not be arranged on the body 12 of the bubble scraping device.

As shown in Fig. 3, Fig. 4 and Fig. 5, the elastic indenter 6 is made of a soft elastic material, preferably a polyurethane elastic material with a Shore hardness of 50 degrees, and the shape of the elastic indenter 6 is based on the upper cover 20 of the touch mouse. It is determined by the shape of the axis, which can ensure that the elastic pressure head 6 can adapt to the changes of the upper cover 20 of different touch mice and effectively perform scraping and pasting operations. Due to the elasticity of the elastic pressure head 6 , it can automatically adapt to the change of the three-dimensional shape of the touch mouse upper cover 20 . The elastic indenter 6 is determined according to the shape of the central axis of the upper cover 20 of the touch mouse. It is a cylindrical shape with an inner concave radian 61, wherein the inner concave radian 61 is adapted to the arc of the central axis of the upper cover 20 of the touch mouse, which can ensure that the elastic pressure head 6 is pressed against the central axis of the upper cover 20 of the touch mouse Time is relatively bridged. Usually, the upper cover 20 of the touch mouse has a left-right symmetrical shape, so that the radian of the bottom shape of the elastic indenter 6 can be designed and manufactured based on the position of the central axis symmetry line of the part, so as to better realize the effect of sticking and removing air bubbles.

The fixing jig 7 is arranged at the lower part of the elastic pressure head 6, and is used for fixing the semi-finished products that have been preliminarily positioned and vacuum pasted, so as to facilitate the pressing operation of the elastic pressure head.

The elastic pressure head motion control device is used to control the up and down movement and rotation of the elastic pressure head, thereby realizing pressing and scraping air bubbles and effectively completing the pasting work.

As shown in FIG. 1 and FIG. 2 , the aligning device 8 includes a groove-shaped structure conforming to the shape of the upper cover 20 of the touch mouse, and a vacuum suction hole 13 is provided at the bottom of the groove-shaped structure. Wherein, there are a plurality of vacuum suction holes 13, and these vacuum suction holes 13 are evenly distributed at the bottom of the groove of the groove structure, so as to facilitate effective vacuum suction operation. Positioning pins can be set, preferably two or three, all arranged at the bottom of the groove, that is, if set to two, the two positioning pins are located near the periphery of the groove bottom of the groove-shaped structure; if the positioning pins are set to three One, it can be set at an angle of 120 degrees with the center point. The positioning pins are used for fixing and positioning the upper cover 20 of the touch mouse.

As shown in Figures 1 and 2, the straightening device includes a vacuum cavity 14 communicated with the vacuum suction hole 13 of the alignment device, a vacuum interface 15 communicated with the vacuum cavity 14, and a vacuum is provided at the vacuum interface 15. The valve 16 controls the switching state of the vacuum valve 16 through the foot switch 17, and then realizes the vacuuming operation.

As shown in Figure 3, the dynamic control device of the elastic pressure head includes an electric control device 3, an air source pressure control module 18, a PLC program control module 19, a cylinder 1, a motor 4 and a rotating shaft 5, wherein the elastic pressure head The head 6 is connected with one end of the cylinder 1 and one end of the rotating shaft 5 , and the motor 4 is connected with the rotating shaft 5 . Wherein, the electronic control device 3 controls the ascending or descending of the cylinder 1 and controls the rotation of the motor 4 . The air source pressure control module 12 controls the pressing force of the elastic pressure head 6, and the PLC (programmable logic controller, which is an acronym for Programmable Logic Controller) program control module 19 controls the rotation angle and rotation speed of the elastic pressure head 6 . In order to protect the motor 4 , a motor protection device 2 is provided outside the motor 4 .

As shown in FIG. 4 , another specific embodiment is that the elastic pressure head 6 is connected to one end of the rotating shaft 5 , the cylinder 1 is connected to the motor 4 through the L-shaped connecting block 10 , and the motor 4 is connected to the rotating shaft 5 .

The elastic pressing head 6 is connected with one end of the rotating shaft 5 through a U-shaped clamp 11 .

During the lifting process of the elastic pressure head 6 , the electric control device 3 controls the cylinder 1 to lift or descend together with the motor 4 and the elastic pressure head 6 .

The main operating steps of the novel FPC automatic pasting device of the present utility model are as follows:

Process an alignment device 8 between the FPC21 and the three-dimensional shape parts of the touch mouse cover 20 according to the requirements of the three-dimensional drawing of the touch mouse cover 20, and fix the flexible FPC21 by using the principle of vacuuming.

Then. Place the semi-finished product that has been preliminarily compressed and connected in the fixed jig 7 of the bubble scraping device. The bubble scraping device is provided with an elastic pressure head 6 that can adapt to the change of the three-dimensional shape. Controlled by the head movement control device, the cylinder 1 drives it down first, and makes the elastic pressure head 6 press the semi-finished product, and then starts the motor 4 according to the preset program, and the rotating shaft 5 of the motor 4 drives the elastic pressure head 6 from the middle of the semi-finished product respectively. Moving to both sides not only realizes the pressing and pasting between the FPC 21 and the upper cover 20 of the three-dimensional touch mouse, but also achieves the effect of eliminating air bubbles.

By adjusting the air pressure of the air source pressure control module 18, the optimal adjustment of the pressing force can be realized. The adjustment controlled by the PLC program control module 19 can realize the range of movement for scraping air bubbles. The movement speed of scraping and foaming can be realized to reach the optimum movement speed through the adjustment of the motor 4 .

When operating the bubble scraping device for scraping the bubbles at the end, the specific operation process is as follows:

1. Connect the power and air source, turn on the power switch in turn, and adjust the air pressure according to the requirements of the program file.

2. The operator puts the parts to be bonded on the fixing jig 7 .

3. The operator presses the operation button. The cylinder 1 is lowered, and the elastic pressure head 6 is pressed against the middle position of the upper cover 20 of the touch mouse.

4. The motor 4 starts automatically, driving the elastic pressure head 6 to rotate to one side.

5. After the elastic pressure head 6 rotates in place, the cylinder 1 is lifted, and the elastic pressure head 6 returns to the original middle position.

6. The cylinder 1 is lowered for the second time, and the elastic pressure head 6 is pressed on the middle position of the upper cover 20 of the touch mouse.

7. The motor 4 starts to move, driving the pressure head 6 to rotate to the other side.

8. After the rotation is in place, the cylinder 1 is lifted, and the elastic pressure head 6 returns to the original middle position.

9. The operator removes the upper cover 20 of the touch mouse from the fixing fixture 7; the process of sticking and scraping the air bubbles is all over.

10. Waiting for the next upper cover 20 of the touch mouse to be pressed.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto, and any person familiar with the technical field can easily think of All changes or replacements should fall within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims (9)

1. A new type of FPC automatic pasting device, characterized in that it includes an alignment device, a vacuum device and a bubble scraping device, wherein the bubble scraping device includes a bubble scraping device body, an elastic pressure head, a fixed jig and an elastic pressure head movement Control device; wherein, the elastic pressure head and the fixed jig are arranged on the bubble scraping device body, the elastic pressure head is made of soft elastic material, the elastic pressure head is determined according to the shape of the central axis of the three-dimensional component, and the elastic pressure head The concave radian corresponds to the arc of the central axis of the three-dimensional component. 2. The novel FPC automatic sticking device according to claim 1, characterized in that, the alignment device and the vacuuming device are integrated. 3. The novel FPC automatic sticking device according to claim 1, characterized in that, said alignment device, vacuum device and bubble scraping device are integrated. 4. The novel FPC automatic sticking device according to claim 1 or 2, wherein the alignment device includes a groove structure conforming to the shape of the three-dimensional component, and the bottom of the groove of the groove structure is provided with Vacuum suction hole. 5. The novel FPC automatic pasting device according to claim 4, characterized in that, there are plural vacuum suction holes. 6. The novel FPC automatic pasting device according to claim 5 is characterized in that, the vacuum pumping device comprises a vacuum cavity communicated with the vacuum suction hole of the alignment device, a vacuum interface communicated with the vacuum cavity, A vacuum valve is provided at the vacuum interface, and the switching state of the vacuum valve is controlled by a foot switch. 7. The novel FPC automatic pasting device according to claim 1 is characterized in that, the elastic pressure head motion control device comprises an electric control device, an air source pressure control module, a PLC program control module, a cylinder, a motor and A rotating shaft, wherein the elastic pressure head is connected with one end of the cylinder and one end of the rotating shaft, and the motor is connected with the rotating shaft. 8. The novel FPC automatic pasting device according to claim 7, wherein the elastic pressure head is connected to one end of the rotating shaft, the cylinder is connected to the motor through an L-shaped connection block, and the motor is connected to the rotating shaft. 9. The novel FPC automatic sticking device according to claim 7 or 8, characterized in that, the elastic pressure head is connected to one end of the rotating shaft through a U-shaped clamp.

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