公开(公告)号：US20160288445A1

公开(公告)日：2016-10-06

申请号：US15034365

申请日：2014-10-17

Applicant: STORA ENSO OYJ

Inventor： Jari Räsänen ,  Henry Lindell ,  Kimmo Nevalainen ,  Panu Tanninen ,  Sami Matthews ,  Mari Hiltunen ,  Outi Kylliainen

IPC: B31F1/00 ,  B29C51/14 ,  B29C51/30 ,  B29C51/08

CPC classification number: B31F1/0077 ,  B29C51/08 ,  B29C51/082 ,  B29C51/145 ,  B29C51/30 ,  B29C51/306 ,  B29K2105/256 ,  B29K2995/0067 ,  B29K2995/0069 ,  B29L2009/005 ,  B29L2031/712 ,  B31B50/592 ,  B31B2110/20 ,  B31F1/00

Abstract: The invention relates to a method and an apparatus for deep-drawing a tray (1) from fiber-based sheet material (2), such as polymer coated board. The apparatus comprises a female moulding tool (3), which comprises a cavity (7) for forming the tray bottom outwardly, a male moulding tool (4), which comprises a plunger plate (11) for forming the tray bottom inwardly, the plunger plate being movable with respect to the cavity for forming the tray, and clamps (6, 15) with an interface for holding the sheet material and forming a tray rim flange. According to the invention by laterally distancing at least one of the moulding tools (3, 4) from the sheet material leeway is provided for free forming of the tray side walls while wrinkling or tearing of the same is avoided. Spacer plates (13) may be positioned behind the plunger plate (11), to adjust its position in relation to the cavity (7) of the female moulding tool (3). The cavity may have a separate bottom plate (8) and spacer plates (9) there below, or screw means may be provided for adjusting the distance of the bottom of the cavity from the clamp interface and thereby varying the depth of the tray.

Abstract translation: 本发明涉及一种用于从诸如聚合物涂布板的纤维基片材（2）深拉一托盘（1）的方法和装置。 该装置包括一个阴模成型工具（3），它包括用于向外形成托盘底部的空腔（7），一个阳模制工具（4），其包括用于向内形成托盘底部的柱塞板（11） 板可相对于用于形成托盘的空腔移动，以及具有用于保持片材的界面的夹具（6,15），并形成托盘边缘凸缘。 根据本发明，通过横向间距将片材材料余料中的至少一个模制工具（3,4）设置成用于托盘侧壁的自由形成，同时避免了其起皱或撕裂。 间隔板（13）可以位于柱塞板（11）的后面，以调节其相对于阴模塑工具（3）的空腔（7）的位置。 空腔可以在其下方具有单独的底板（8）和间隔板（9），或者可以设置螺旋装置用于调节空腔的底部与夹紧界面的距离，从而改变托盘的深度。

公开(公告)号：US11548257B2

公开(公告)日：2023-01-10

申请号：US15034365

申请日：2014-10-17

Applicant: Stora Enso OYJ

Inventor： Jari Räsänen ,  Henry Lindell ,  Kimmo Nevalainen ,  Panu Tanninen ,  Sami Matthews ,  Mari Hiltunen ,  Outi Kylliainen

IPC: B29C51/30 ,  B31F1/00 ,  B29C51/08 ,  B29C51/14 ,  B31B50/59 ,  B31B110/20 ,  B29K105/00 ,  B29L9/00 ,  B29L31/00

Abstract: The invention relates to a method and an apparatus for deep-drawing a tray (1) from fiber-based sheet material (2), such as polymer coated board. The apparatus comprises a female moulding tool (3), which comprises a cavity (7) for forming the tray bottom outwardly, a male moulding tool (4), which comprises a plunger plate (11) for forming the tray bottom inwardly, the plunger plate being movable with respect to the cavity for forming the tray, and clamps (6, 15) with an interface for holding the sheet material and forming a tray rim flange. According to the invention by laterally distancing at least one of the moulding tools (3, 4) from the sheet material leeway is provided for free forming of the tray side walls while wrinkling or tearing of the same is avoided. Spacer plates (13) may be positioned behind the plunger plate (11), to adjust its position in relation to the cavity (7) of the female moulding tool (3). The cavity may have a separate bottom plate (8) and spacer plates (9) there below, or screw means may be provided for adjusting the distance of the bottom of the cavity from the clamp interface and thereby varying the depth of the tray.

公开(公告)号：US20170305097A1

公开(公告)日：2017-10-26

申请号：US15518178

申请日：2015-10-08

Applicant: Stora Enso OYJ

Inventor： Jari Räsänen ,  Kimmo Nevalainen ,  Henry Lindell ,  Panu Tanninen ,  Sami Matthews ,  Mari Hiltunen ,  Outi Kylliainen

IPC: B31F1/00 ,  B65D1/34 ,  B65D1/26

CPC classification number: B31F1/0077 ,  B31B50/25 ,  B31B50/592 ,  B31B70/00 ,  B31B2100/0024 ,  B31B2160/10 ,  B65D1/26 ,  B65D1/34

Abstract: The invention relates to a method and an apparatus for deep-drawing a tray (1) from a blank of sheet material (2). The blank is provided with score lines, which determine the location of wrinkles formed in the process. The apparatus comprises a female moulding tool (3), which comprises a cavity (7) for forming the tray bot-tom outwardly, a male moulding tool (4), which comprises a plunger (11) for form-ing the tray bottom inwardly, the plunger being movable with respect to the cavity for forming the tray, and clamps (6, 15) with an interface for holding the sheet ma-terial and forming a tray rim flange. According to the invention by laterally distanc-ing at least one of the moulding tools (3, 4) from the sheet material leeway is pro-vided for free forming so that wrinkling of the tray side walls is achieved in a con-trolled manner. Spacer plates (13) may be positioned behind the plunger (11), to adjust its position in relation to the cavity (7) of the female moulding tool (3). The cavity may have a separate bottom plate (8) and spacer plates (9) therebelow, or screw means may be provided for adjusting the distance of the bottom of the cavi-ty from the clamp interface and thereby varying the depth of the tray.

公开(公告)号：US11241855B2

公开(公告)日：2022-02-08

申请号：US15518178

申请日：2015-10-08

Applicant: Stora Enso OYJ

Inventor： Jari Räsänen ,  Kimmo Nevalainen ,  Henry Lindell ,  Panu Tanninen ,  Sami Matthews ,  Mari Hiltunen ,  Outi Kylliainen

IPC: B31F1/00 ,  B31B50/44 ,  B65D1/26 ,  B65D1/34 ,  B31B70/00 ,  B31B160/10 ,  B31B50/59 ,  B31B100/00 ,  B31B50/25

Abstract: The invention relates to a method and an apparatus for deep-drawing a tray (1) from a blank of sheet material (2). The blank is provided with score lines, which determine the location of wrinkles formed in the process. The apparatus comprises a female moulding tool (3), which comprises a cavity (7) for forming the tray bottom outwardly, a male moulding tool (4), which comprises a plunger (11) for forming the tray bottom inwardly, the plunger being movable with respect to the cavity for forming the tray, and clamps (6, 15) with an interface for holding the sheet material and forming a tray rim flange. According to the invention by laterally distancing at least one of the moulding tools (3, 4) from the sheet material leeway is pro-vided for free forming so that wrinkling of the tray side walls is achieved in a controlled manner. Spacer plates (13) may be positioned behind the plunger (11), to adjust its position in relation to the cavity (7) of the female moulding tool (3). The cavity may have a separate bottom plate (8) and spacer plates (9) therebelow, or screw means may be provided for adjusting the distance of the bottom of the cavity from the clamp interface and thereby varying the depth of the tray.