US20020029547A1 - Mold-design and improvement of an automatic expansible side paperboard bag folding and gluing machine - Google Patents
Mold-design and improvement of an automatic expansible side paperboard bag folding and gluing machine Download PDFInfo
- Publication number
- US20020029547A1 US20020029547A1 US09/885,105 US88510501A US2002029547A1 US 20020029547 A1 US20020029547 A1 US 20020029547A1 US 88510501 A US88510501 A US 88510501A US 2002029547 A1 US2002029547 A1 US 2002029547A1
- Authority
- US
- United States
- Prior art keywords
- mold
- design
- automatic
- improvement
- folding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B70/00—Making flexible containers, e.g. envelopes or bags
- B31B70/25—Surface scoring
- B31B70/252—Surface scoring using presses or dies
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B—MAKING CONTAINERS OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31B50/00—Making rigid or semi-rigid containers, e.g. boxes or cartons
- B31B50/26—Folding sheets, blanks or webs
- B31B50/36—Folding sheets, blanks or webs by continuously feeding the sheets, blanks or webs to stationary members, e.g. plates, ploughs or cores
Definitions
- the present invention relates to a mold-design to manufacture expansible-side paperboard bags using a fully automatic gluing/folding machine.
- the mold design used to make the bag is a mold with a four-section structure (FIG. 1. 1 ); the first section is the upper lap and its opposite side is called the upper face; the second section is the side lap and its opposite side is called the left-hand expansible side; the third section is the lower lap and its opposite side is called the lower face; and the fourth section is the side lap and its opposite side is called the right-hand expandable side.
- the latter section includes a gluing stub, and the side laps are creased down the middle so that they can be easily folded.
- the bags are also creased along the side laps and between the upper and lower laps.
- the edges of the upper and lower laps are cut on an angle, and the edges of the side laps are cut at a right angle, with a small diagonal cut where they meet the edge of the upper or lower laps, and the laps are creased along with their entire length, the creasing of all laps allowing for suitable fold when gluing the bags.
- the mold-design section is straight, with only four holes used to insert two pieces of string to be used as handles.
- the product immediately enters the machine on conveyer belts (FIG. 2. 2 ) that guide the bag mold/design to the folding guides (FIG. 2. 3 ). These guides fold the right-hand expansible side along its entire length, using the crease at the center of the expansible side mold-design.
- a strategically placed hook pulls the gluing stub and when the hook passes the mold-design, a magnet returns it to its original position.
- a smaller guide is used to ensure consisting folding.
- a folding guide folds the entire length of the left-hand expansible side.
- the mold-design passes through a compression band that keeps the folds compressed, and keeping the right and left-hand expansible sides and the right-hand lap completely flat (FIG. 3. 1 ).
- An electric eye determines the part of the side gluing stub on which glue will be applied, and then shoots the glue automatically, leaving a hot layer on the bag side or gluing stub.
- the upper half of the bag and the upper lap are folded by a bouncing belt (with an up and down movement) and are then joined to their counterparts, permitting adhesion to the gluing stub. Due to the type of flue used, this bond dries almost immediately.
- the bag is immediately removed on a special conveyer belt that raises the upper lap of the bottom with a hook that keeps the lap folded backwards.
- a special conveyer belt that raises the upper lap of the bottom with a hook that keeps the lap folded backwards.
- the upper lap of the base is folded, it pulls the left and right-hand expansible sides leaving two triangles on each side where the bottom will be, the side laps and the upper and lower laps.
- An electric eye then enters, detects the product, sees how the upper lap of the bottom is kept raised, and with an insertion attachment inserts a square or rectangular bottom (FIG. 4. 1 ), depending on the shape of the finished bag, which should be equal or similar to the surface area of the bag's bottom, for added strength. This additional bottom section is optional.
- the product enters a second automatic feeder, which sends the bag on to special belts on which the bottom side laps are folded. These sidelaps fall on or cover the triangles formed by folding the expansible sides so that the previously placed bottom section is placed correctly.
- the product then passes through a speed differential and is rotated 90 degrees from right to left on the conveyer belts, so that it continues rotating in the same direction as the belt, but in a different position.
- the last part of the gluing process can be completed without rotating 90 degrees, without which bag manufacture would not be possible.
- a last electric eye detects the bag and shoots hot glue along the width of the bottom section.
- the bag then enters a drying tunnel where the drying process is completed.
- the first part of the machine is designed to produce pre-folded linearly glued boxes, boxes with internal compartments, pillow boxes, double-wall boxes and retail products with special finishes.
- This machine has a circulation tunnel through which the product passes in forty seconds. It also has an attachment that handles final folding of the product, giving it great versatility for processing custom manufactured products.
- the second part of the machine is the gluing-folding section, which has a circuit with special features in the rear section for final product assembly.
- Re-directing unit which rotates the product 90 degrees for finishing
Landscapes
- Making Paper Articles (AREA)
Abstract
This utility model corresponds to a special mold-design used to manufacture paperboard bags. The mold-design is a piece of creased paper, which makes it possible for a modified gluing-folding machine to perform a series of liner steps to finish the bag, the process ending with the step in which the product is rotated to glue the bottom. The process is fully automated.
Description
- 1. Field of the Invention
- The present invention relates to a mold-design to manufacture expansible-side paperboard bags using a fully automatic gluing/folding machine.
- 2. Description of the Prior Art
- Over the years, paper bags or bags made with natural cellulose for various uses, have been manufactured using traditional methods.
- Originally, molds were made, on which bag makers would cut sheets of paper to different sizes to manually fold the pieces of material from which the bags would in turn be made. Then, the folds were made and were immediately pressed down into bag shape.
- The bottoms of the bags were, and in some cases still are, glued, or a piece of any thicker material is simply placed at the bottom to prevent the bottom from splitting and prevent the bag's contents from falling out.
- Most bags are manufactured with a conventional gluing-folding machine, which is available to the general public. The machine performs half of the manufacturing process, and the bags are hand finished by experienced personnel.
- The advantage of this mold-design and improvement of the expansible-side paperboard bag folding-gluing machine is that the entire manufacturing process is automated, eliminating the need for manual labor. The bag mold-design is placed on the machine by an automatic feeder and the only manual work required is fitting the string handle and packing.
- The mold-design for the bag manufacturing process using the creased paperboard mold-design, with a modified folding-gluing machine is described below, illustrating the various steps in the process with the following figures:
- The mold design used to make the bag is a mold with a four-section structure (FIG. 1.1); the first section is the upper lap and its opposite side is called the upper face; the second section is the side lap and its opposite side is called the left-hand expansible side; the third section is the lower lap and its opposite side is called the lower face; and the fourth section is the side lap and its opposite side is called the right-hand expandable side. The latter section includes a gluing stub, and the side laps are creased down the middle so that they can be easily folded.
- The bags are also creased along the side laps and between the upper and lower laps. The edges of the upper and lower laps are cut on an angle, and the edges of the side laps are cut at a right angle, with a small diagonal cut where they meet the edge of the upper or lower laps, and the laps are creased along with their entire length, the creasing of all laps allowing for suitable fold when gluing the bags. On the side opposite the cuts, the mold-design section is straight, with only four holes used to insert two pieces of string to be used as handles.
- Once the mold design (FIG. 1.1) is ready, an automatic feeder (FIG. 2.1) places it on the machine.
- The product immediately enters the machine on conveyer belts (FIG. 2.2) that guide the bag mold/design to the folding guides (FIG. 2.3). These guides fold the right-hand expansible side along its entire length, using the crease at the center of the expansible side mold-design.
- Immediately thereafter, a strategically placed hook pulls the gluing stub and when the hook passes the mold-design, a magnet returns it to its original position. A smaller guide is used to ensure consisting folding. Simultaneously with
steps - In order to obtain a uniform, even fold along the length of the expansible sides, the mold-design passes through a compression band that keeps the folds compressed, and keeping the right and left-hand expansible sides and the right-hand lap completely flat (FIG. 3.1).
- An electric eye determines the part of the side gluing stub on which glue will be applied, and then shoots the glue automatically, leaving a hot layer on the bag side or gluing stub.
- Simultaneously with the preceding action, the upper half of the bag and the upper lap are folded by a bouncing belt (with an up and down movement) and are then joined to their counterparts, permitting adhesion to the gluing stub. Due to the type of flue used, this bond dries almost immediately.
- The bag is immediately removed on a special conveyer belt that raises the upper lap of the bottom with a hook that keeps the lap folded backwards. When the upper lap of the base is folded, it pulls the left and right-hand expansible sides leaving two triangles on each side where the bottom will be, the side laps and the upper and lower laps.
- An electric eye then enters, detects the product, sees how the upper lap of the bottom is kept raised, and with an insertion attachment inserts a square or rectangular bottom (FIG. 4.1), depending on the shape of the finished bag, which should be equal or similar to the surface area of the bag's bottom, for added strength. This additional bottom section is optional.
- The product enters a second automatic feeder, which sends the bag on to special belts on which the bottom side laps are folded. These sidelaps fall on or cover the triangles formed by folding the expansible sides so that the previously placed bottom section is placed correctly.
- An electric eye immediately detects the product and an automatic injector shoots glue onto the already folded side sections.
- A hook pulls the upper lap of the bottom section to ensure that it is glued where the glue was applied, covering half of the bottom, in other words, half of each side lap, and at the same time, the previously placed bottom section is adjusted.
- The product then passes through a speed differential and is rotated 90 degrees from right to left on the conveyer belts, so that it continues rotating in the same direction as the belt, but in a different position. Thus, the last part of the gluing process can be completed without rotating 90 degrees, without which bag manufacture would not be possible.
- A last electric eye detects the bag and shoots hot glue along the width of the bottom section.
- The lower lap of the bottom section (FIG. 5.1) is folded by a guide belt system that moves the lap upwards. The lap is then glued automatically to complete the gluing and folding process (FIG. 5.1).
- The bag then enters a drying tunnel where the drying process is completed.
- It should be pointed out that the entire process is linear, which means that the product is produced at a low cost.
- At the end of the drying tunnel, the bags pass on to a table.
- Quality control is applied on this table.
- String handles are attached to the finished bag.
- If the product passes the quality control test, it is sent for packing.
- The gluing-folding machine is described below, and the aspects that differentiate it from conventional machines are also described:
- The first part of the machine is designed to produce pre-folded linearly glued boxes, boxes with internal compartments, pillow boxes, double-wall boxes and retail products with special finishes. This machine has a circulation tunnel through which the product passes in forty seconds. It also has an attachment that handles final folding of the product, giving it great versatility for processing custom manufactured products.
- The second part of the machine is the gluing-folding section, which has a circuit with special features in the rear section for final product assembly.
- It also has the following special attachments:
- An automatic compressed air suction feeder;
- An automatic attachment to manufacture boxes with a bottom section;
- Re-directing unit which rotates the product 90 degrees for finishing;
- A special inserter that makes it possible to insert the bottom during the
- folding and gluing process to make the base of the product stronger;
- A fast-drying hot glue application system;
- A central control system.
Claims (12)
1. Mold-design and improvement for an automatic expansible side paperboard bag folding-gluing machine, characterized by the need for a special creased mold-design to make the bag, consisting of: the mold-design used to make the bag comprises four sections: the first is the upper lap, the other side of which is called the upper face, the second section is the side lap the other side of which is called the left-hand expansible side, the third section is the lower lap, the other side of which is called the lower face and the fourth section is the side lap, the other side of which is called the right-hand expansible side; this section includes a gluing stub; the side laps are creased down the middle for ease of folding; the side laps between the upper and lower lap are also creased; three angle cuts with diagonal ends are made between these parts in the internal section of the angle and it is creased along its entire length; creasing of all parts means the appropriate folds can be made for subsequent gluing; and on the other side of the cut, the mold-design section is straight and has only four holes into which two pieces of string can be inserted for handles.
2. Mold-design and improvement for automatic expansible side paperboard bag folding-gluing machine, as per clause 1, this machine's distinguishing feature is that to make the fold it is necessary that its component parts be creased in order to finish the bottom.
3. Mold-design and improvement for automatic expansible side paperboard bag folding-gluing machine as per clause 1, characterized by the fact that the bottom is folded by forming triangles at the base using the sides of the bag.
4. Mold-design and improvement for automatic expansible side paperboard bag folding-gluing machine, as per clause 1, characterized by the following special attachments: automatic compressed air suction feed unit, attachment to manufacture boxes with automatic bottom, re-positioning unit, which rotates the product in process 90 degrees for finishing, special inserter that inserts the bottom during the folding and gluing process in order to make the base of the product stronger, a high-speed hot glue application system, and a central control system.
5. Mold-design and improvement for automatic expansible side paperboard bag folding-gluing machine, as per clause 4, characterized by an automatic feeder, conveyer belts and folding guides.
6. Mold-design and improvement for automatic expansible side paperboard bag folding-gluing machine, as per clause 4, characterized by special hooks that guide the laps and expansible sides to ensure that they are placed as needed and that they remain folded long enough to manufacture the bag.
7. Mold-design and improvement for automatic expansible side paperboard bag folding-gluing machine, as per clause 4, characterized by the fact that it uses a speed differential on the conveyer belts to rotate the product 90 decrees in the last stage of the gluing process.
8. Mold-design and improvement for automatic expansible side paperboard bag folding-gluing machine as per clause 2, characterized by the fact that the bottom is folded by forming triangles at the base using the sides of the bag.
9. Mold-design and improvement for automatic expansible side paperboard bag folding-gluing machine, as per clause 2, characterized by the following special attachments: automatic compressed air suction feed unit, attachment to manufacture boxes with automatic bottom, re-positioning unit, which rotates the product in process 90 degrees for finishing, special inserter that inserts the bottom during the folding and gluing process in order to make the base of the product stronger, a high-speed hot glue application system, and a central control system.
10. Mold-design and improvement for automatic expansible side paperboard bag folding-gluing machine, as per clause 2, characterized by the following special attachments: automatic compressed air suction feed unit, attachment to manufacture boxes with automatic bottom, re-positioning unit, which rotates the product in process 90 degrees for finishing, special inserter that inserts the bottom during the folding and gluing process in order to make the base of the product stronger, a high-speed hot glue application system, and a central control system.
11. Mold-design and improvement for automatic expansible side paperboard bag folding-gluing machine, as per clause 5, characterized by special hooks that guide the laps and expansible sides to ensure that they are placed as needed and that they remain folded long enough to manufacture the bag.
12. Mold-design and improvement for automatic expansible side paperboard bag folding-gluing machine, as per clause 6, characterized by the fact that it uses a speed differential on the conveyer belts to rotate the product 90 decrees in the last stage of the gluing process.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MXPA00000164 | 2000-06-30 | ||
MX000164 | 2000-06-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
US20020029547A1 true US20020029547A1 (en) | 2002-03-14 |
Family
ID=34101904
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/885,105 Abandoned US20020029547A1 (en) | 2000-06-30 | 2001-06-21 | Mold-design and improvement of an automatic expansible side paperboard bag folding and gluing machine |
Country Status (3)
Country | Link |
---|---|
US (1) | US20020029547A1 (en) |
AU (1) | AU2001269605A1 (en) |
WO (1) | WO2002000423A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102371704B (en) * | 2011-10-31 | 2013-04-17 | 瑞安市峰明机械有限公司 | Solid molding machine of paper-plastic bag |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4014252A (en) * | 1975-09-02 | 1977-03-29 | Show Seitai Kogyo Kaisha Ltd. | Method of manufacturing bags |
US4578054A (en) * | 1983-11-17 | 1986-03-25 | Herrin Robert M | Carton erection and sealing apparatus |
FR2665137B1 (en) * | 1990-07-24 | 1994-07-01 | Otor Sa | CRATES IN A SHEET MATERIAL, BLANKS AND MACHINE FOR THE PRODUCTION OF SUCH CRATES. |
JP2557481Y2 (en) * | 1990-12-25 | 1997-12-10 | 四国化工機株式会社 | Blank supply device |
FR2767282B1 (en) * | 1997-08-12 | 1999-10-29 | Jean Claude Serre | METHOD AND MACHINE FOR MOUNTING A BOX WITH POLYGONAL SECTION FROM A CORRUGATED CARDBOARD CUT |
US6042527A (en) * | 1998-01-30 | 2000-03-28 | Tetra Laval Holdings & Finance, Sa | Carton forming device |
-
2001
- 2001-06-21 US US09/885,105 patent/US20020029547A1/en not_active Abandoned
- 2001-06-29 WO PCT/MX2001/000044 patent/WO2002000423A1/en active Application Filing
- 2001-06-29 AU AU2001269605A patent/AU2001269605A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
AU2001269605A1 (en) | 2002-01-08 |
WO2002000423A1 (en) | 2002-01-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |