Ishida Co. Limited

Seiko Epson Corporation

Ryota Nagashima

Satoshi Hashimoto

Yuchuan Tong

Takafumi Shimoda

Makoto Ichikawa

Ryo Sasaki

Hiroki Fujihara

Shinji Koike

Masaki Shinkawa

Toshiharu Kageyama

Ryoichi Sato

Fumiya Ito

Masayuki Yamane

Riku Murakami

Tomoko Koike

Tomoki Shibata

A bagmaking and packaging apparatus includes a film conveyance mechanism, a former mechanism, a transverse sealing mechanism, and a first partition member. The film conveyance mechanism conveys a film. The former mechanism includes a product feed chute and a former. The product feed chute has a product fed to it. The former forms in a tubular shape the film conveyed by the film conveyance mechanism. The transverse sealing mechanism is disposed under the former mechanism. The transverse sealing mechanism transversely seals the tubular film to make bags containing the product fed from the product feed chute. The first partition member partitions a space around the former mechanism into a first space and a second space. The first space is on the product feed chute side. The second space is on the transverse sealing mechanism side.

Bagmaking and packaging apparatus

Two bagmaking and packaging machines are installed side-by-side. Each of the bagmaking and packaging machines includes a film supply unit in the rear portion, a former mechanism in the front portion, and a transverse sealing mechanism that transversely seals a top and a bottom of the film in the tubular shape into which a product supplied from a combination weighing apparatus is fed. Each of the bagmaking and packaging machines is disposed under a discharge chute of a corresponding combination weighing machine, which includes two combination weighing machines joined to each other substantially symmetrically in the left and right direction as viewed from above and a base member that supports the combination weighing machines. A maximum width of the bagmaking and packaging apparatus when viewed from the front is narrower than a width of the base member.

Bagmaking and packaging apparatus and weighing and packaging system

A bagmaking and packaging apparatus forms a sheet-form film into a tubular shape around a tube, which tubular film is transversely sealed after product is introduced therein. The bagmaking and packaging apparatus includes multiple upright support posts that form a frame. The support posts include a first support post group disposed on one side in the left and right direction and a second support post group disposed on the other side. A first support post disposed foremost in the first support post group extends from a low position to a position higher than the transverse sealing mechanism and is disposed forward of a center O of the tube. A second support post disposed foremost in the second support post group extends from a low position to a position higher than the transverse sealing mechanism and is disposed rearward of the center of the tube.

A bag-making and packaging machine includes a bag-making and packaging section and a film supply section. The film supply section includes a film conveyance section that conveys a starting end portion of a replacement film roll supported by a film roll support portion to a bonding portion. The film conveyance section includes a clamping portion that holds a tape adhering to the starting end portion of the replacement film roll, and a pulling mechanism that pulls a second film held by the clamping portion from the replacement film roll. When the replacement film roll is mounted, the film roll support portion rotates the replacement film roll, and the clamping portion holds the tape of the replacement film roll rotated by the film roll support portion.

Bag-making and packaging machine

A bag-making and packaging machine includes sealing jaws, a horizontal moving device, a vertical moving device, and a control unit. The sealing jaws perform a transverse sealing operation. The vertical moving device moves the sealing jaws in a vertical direction. The vertical moving device includes a rotating shaft, a motor, and a link mechanism. The link mechanism transmits rotational force of the rotating shaft to the sealing jaws. The control unit performs first control or second control. The first control forwardly rotates and reversely rotates the rotating shaft during a period of time from a start of the transverse sealing operation to a start of a subsequent transverse sealing operation. The second control performs one of the transverse sealing operation and the subsequent transverse sealing operation with a forward rotation of the rotating shaft and the other with a reverse rotation of the rotating shaft.

A bag-making and packaging machine includes a film supply unit that supplies film to a bag-making and packaging unit. The film supply unit has a film roll holding unit that rotatably holds a first film roll, a film temporary placement member on which a vicinity of a leading end portion of a first film wound into the first film roll is manually temporarily placed when attaching the first film roll to the film roll holding unit, a leading end portion detection sensor configured to detect that the leading end portion of the first film is positioned in a prescribed position, and a controller configured to control a rotating mechanism to convey the first film along a predetermined conveyance path until the leading end portion detection sensor detects that the leading end portion of the first film is positioned in the prescribed position.

A bag-making and packaging machine has a film supply unit that supplies film to a bag-making and packaging unit. The film supply unit has holding mechanisms each having a shaft that holds a film roll, a holding mechanism support frame supporting the holding mechanisms, a moving mechanism that rotates the holding mechanism support frame to move each holding mechanism between a film roll setting position and a film supply position, a splicing mechanism splicing a trailing end portion of the film of the roll of one of the holding mechanisms and a leading end portion of the film of the roll of another one of the holding mechanisms, and a film drawing mechanism that rotates the shafts of the holding mechanisms to draw the film independently from the film rolls attached to the shafts of the holding mechanisms and changes the drawing speed of the film during bag-making and packaging.

A bag-making and packaging machine has a film supply unit that supplies film to a bag-making and packaging unit. The film supply unit has a film conveyance mechanism that conveys a first film so that a trailing end portion of the first film heads toward a film splicing position for splicing to a leading end portion of a second film, a first sensor detecting a mark on the first film, a second sensor detecting the mark at downstream, and a controller for the film conveyance mechanism. The controller judges, based on detection of the second sensor, that the trailing end portion of the first film has reached the splicing position and stops conveyance of the first film. The controller controls the conveyance mechanism so that the conveyance speed of the first film before the detection of the mark by the first sensor is faster than the speed after the detection.

A film roll supporting device comprises a shaft body part, a shaft tip part, and a projection part. The shaft body part extends through a central hole of a film roll and having the film roll mounted thereon. The shaft tip part extends in an axis direction of a shaft from one end of the shaft body part on a side to be inserted into the central hole of the film roll. The projection part extends in a direction intersecting the axis direction of the shaft body part from the shaft tip part. The projection part abuts from below to a core of the film roll provisionally placed on the shaft tip part when the mounting of the film roll is performed. A cutout recessed in a direction intersecting the axis direction of the shaft body part is formed in the projection part.

Film roll support device

Certain implementations provide a form-fill-seal machine that can efficiently seal a packaging material. The transverse sealing unit may have first members to sandwich the packaging material and sealing the packaging material in a transverse direction, and second members for squeezing the packaging material while sandwiching the packaging material with a prescribed gap left therebetween. The control unit may cause the packaging material to be squeezed by the second members by causing the transverse sealing unit located at a reference position to descend faster than the packaging material being conveyed downward. The control unit may cause the transverse sealing unit to ascend while the packaging material is being sealed by the first members. The control unit may cause the transverse sealing unit to move such that the first members are separated from the packaging material.

Growing community of inventors

Ritto, Japan

Ryota Nagashima