Matsushita Electric Industrial Co., Ltd.

Panasonic Corporation

Panasonic Intellectual Property Management Co., Ltd.

Kimiyuki Yamasaki

Seiichi Miyahara

Michinori Tomomatsu

Takahiro Fukagawa

Minoru Murakami

Kunihiko Tokita

Seikoh Abe

Seikou Abe

Yuji Otake

Seiko Abe

Masayuki Mantani

Nobuhiro Nakai

Takashi Yazawa

Masahiro Kihara

Takaaki Sakaue

Yasuichi Okada

Takashi Katsuki

An object of the invention is to provide an electronic component mounting device and a work method of the electronic component mounting device, capable of ensuring safety of an operator who accesses a work line through a door portion, and avoiding reduction of workability. A space defined by a base () and a cover member () is partitioned by a partition member () to define a plurality of work line storing spaces (SP). A plurality of work lines () are stored in the respective work line storing spaces (SP) individually. When any of a plurality of door portions () provided in the cover member () so as to allow an access to an inside of the respective work line storing spaces (SP) is opened, an operation of a work line () stored in a work line storing space (SP) accessible through the opened door portion () is stopped.

Electronic component mounting device and work method of electronic component mounting device

An object of the invention to provide a screen printing machine allows, during maintenance work for one printing device, the other printing device to continue its screen printing work, and a method for controlling an inside temperature of a screen printing machine. A space surrounded by a base () and a cover member () is divided into two portions by a partition member (), and two printing devices () are accommodated in two working compartments (), respectively, which are defined by the base (), the cover member () and the partition member (), whereby temperature-controlled air is blown into each of the working compartments () via an air pipe () which branches into two air vents () opened to the respective working compartments ().

Screen printing machine and method for controlling inside temperature of screen printing machine

A tape cutting device that cuts off an empty tape, which is discharged from a tape feeder after supplying components to a component mounting apparatus by pitch-feeding a tape containing the components, by opening and closing two cutting blades actuated by a pneumatic actuator driven by a supply of a pressurized air from a pneumatic pressure source controlled by a control valve, comprising:

Tape cutting device and tape feeder changing carriage

The clearance 'd' between a substrateand a maskcan be reduced at the time of the position recognition by horizontally offsetting two recognition devicesfor recognizing the substrateand the mask. Therefore, since the ascending stroke of the substratecan be shortened at the time of the position alignment to contact the rear face of the substratewith the rear face of the mask, the position misalignment of the substrate in the horizontal direction caused by the raising is suppressed. Accordingly, it is possible to suppress the reduction of the position alignment accuracy with the mask

Screen printing apparatus and screen printing method

To provide a printing inspection apparatus and a printing inspection method enabling an optimal inspection mode in which a balance is kept between the improvement of production efficiency and the securing of a printing accuracy. In a printing inspection for inspecting a printing state of cream solder on a substrate after screen printing, inspection data is generated by dividing unit shape and position data, indicating the shapes and the positions of element solder print portions to be printed on electrodes provided on a circuit forming surface of the substrate to be used to bond electronic components, into data groups according to a grouping condition chosen in response to an inspection mode. A go/no-go judgment at the time of inspection is made per data group, and a judgment result is displayed for each data group. It is thus possible to choose an optimal inspection mode flexibly in response to the characteristics of a substrate as the subject to be inspected.

Printing inspection apparatus, printing inspection method, printing inspection data generating apparatus, and printing inspection data generating method

In an image recognition method, the image of a cream solderprinted on a rectangular electrodehaving a solder leveler formed is picked up and recognized to identify the cream solder. An illuminating unit having white light source partsW arranged in the radial oblique directions of 45&#xb0; is used to apply white color illumination lights from a light applying direction in which an angle of &#x3b8;1 formed by the light applying direction and a horizontal plane in a vertical plane is 45&#xb0; or smaller and from a light applying direction in which an angle of &#x3b8;3 formed by the light applying direction and the boundary of the electrodein a horizontal plane is 75&#xb0; or smaller. Thus, regularly reflected lights from a solder leveler forming surfacewith a glossiness are not received by an upper camera to identify a solder surfaceand the solder leveler forming surfacewith good accuracy.

Image recognition apparatus and method for surface discrimination using reflected light

A screen printing apparatus prints cream solder through a pattern hole of a mask plate, to which a substrate is brought into contact, by sliding a squeegee head. A three dimensional detector, such as a laser, is used to determine the extent to which the pattern hole is filled with the cream solder. Based on the determination result, the printing operation is modified, with respect to the positioning of the mask plate and substrate, to maintain the printing quality.

Screen printing apparatus and method of the same

In a screen-printing apparatus for printing creamy solder paste on a substrate by attaching a screen mask to the substrate, a predetermined measuring position of the mechanisms in the screen-printing apparatus is measured three-dimensionally by a three-dimensional measuring device. Based on the measured result, a predetermined measuring point on an object to be measured is determined on a position relative to the origin of the mechanical coordinate system in the screen-printing apparatus, and the origin position on a control program can be set. As a result, machine adjusting operation and teaching operation in the screen-printing apparatus can be simplified with high accuracy.

Apparatus and method of screen printing

Cream solder stored in a squeegee head is pressurized by a pressurizing plate, and the squeegee head is slid on a mask plate, so that the cream solder is printed onto a substrate via pattern apertures. This is done by a screen printing apparatus, in which pressurized solder is accommodated, and the solder is brought into contact with a surface of the mask plate via an opening formed on a lower face of the cell. A rectifier is disposed in the cell for blocking the cream solder from flowing into a specific area just above the opening. This structure allows the solder to flow into the opening in a slant direction, and causes the solder to roll. This mechanism prevents the solder from being hardened due to staying stagnant just above the opening, and thus prevents defective printings.

Screen printing apparatus and method of screen printing

It is possible to obtain a screen printing method that may assure excellent printing qualities since the screen printing method of the present invention includes: (A) sliding a squeegee head with paste stored in the squeegee head on a mask plate, while the past is pressurized, and printing the paste on a substrate through pattern holes of the mask plate, (B) at least one step of (b) separating the squeegee head with the paste stored therein from the mask plate, and (e) sliding the squeegee head on the mask plate for a pre-squeezing purpose before the step (A). The step of separating the squeegee head from the mask plate includes the steps of (1) discontinuing the pressure application to the paste stored in the squeegee head, (2) horizontally moving the squeegee head by a predetermined distance while the bottom end portion of the squeegee head is abutted on the mask plate in a state of the pressure application being discontinued, and (3) moving the squeegee head upward off from the mask plate. In the step of pre-squeezing includes the steps of (1) pressurizing the paste stored in the squeegee head in a state of the squeegee head being abutted on the mask plate, and (2) horizontally moving the squeegee head while the bottom end portion of the squeegee head is abutted on the mask plate in a state of the paste being pressurized.

Screen printing method

A screen-printing apparatus for printing creamy solder paste on a substrate by attaching a screen mask to the substrate. A laser-measuring device mounted in the apparatus measures the top surface of the screen mask at a printing position and the top of the substrate at a substrate-measurement position by three-dimensional measurement, and detects a shape of the substrate or the screen mask, and determines whether or not they are acceptable. After screen printing is completed, the substrate and the screen mask undergo a printing inspection where their shapes are inspected. This provides not only inspection data of the printing results but also data for identifying the causes of print failures. As a result, the screen-printing apparatus, which has high-printing accuracy and can prevent printing failures from occurring, is provided.

A screen printing method and apparatus are capable of maintaining a constant attack angle between a squeegee and a mask plate, regardless of the surface condition of the mask plate. A squeegee head, including a pair of squeegees, is rotatably supported by a retainer with respect to a horizontal axis that is at a right angle to a squeegeeing direction. The rotatably supported squeegee head is pushed by a cylinder against the mask plate. Accordingly, the attack angle is kept constant to improve the printing quality even if a substrate has a curved portion.

Screen printing apparatus having rotatable united squeegee pair, and method of screen printing using said apparatus

A squeegee head having a volume-variable container and a printing space is used. The volume-variable container is variable in capacity with pressures applied thereto. The volume-variable container includes a projecting portion having a plurality of projections, a push-plate with a plurality of through-holes formed therein, and a side wall. A paste is stored in the volume-variable container. The projecting portion is pressurized to move and the paste is pushed out into the printing space from the through-holes, and then, the projections are fitted into the through-holes. In this way, the paste being stable in viscosity is completely pushed out into the printing space without wasting at all.

Screen printing apparatus, screen printing method, and paste storage container for screen printing apparatus

A screen printer for printing paste on a board by sliding a squeegee head on a mask plate. A pushing plate pressurizes solder paste in the squeegee head, and pressurized paste is led to a paste container from both outer parts in a printing width direction inward towards a printing center through a solder dispensing hole provided on both ends of the paste container. This configuration allows to print in accordance with the time-line supply sequence, regardless of the printing width of the board to be printed. This screen printer thus prevents the degradation and the consequent need for disposal of solder paste due to its retention in the squeegee head for long periods.

Growing community of inventors

Fukuoka, Japan

Kimiyuki Yamasaki