CN112193910A - Folding machine for realizing half-folding of paper by airflow - Google Patents
Folding machine for realizing half-folding of paper by airflow Download PDFInfo
- Publication number
- CN112193910A CN112193910A CN202010955305.3A CN202010955305A CN112193910A CN 112193910 A CN112193910 A CN 112193910A CN 202010955305 A CN202010955305 A CN 202010955305A CN 112193910 A CN112193910 A CN 112193910A
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- paper
- folding
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- air
- receiving
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H45/00—Folding thin material
- B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
Abstract
A folding machine for realizing half folding of paper by air flow comprises a slitting and folding mechanism for slitting and folding continuous paper, a receiving piece for receiving the slit and folded paper output by the slitting and folding mechanism, a folding piece which is used for clamping a paper stack together with the receiving piece and moves to the position where the receiving piece leaves the received paper, an air suction piece which extends into a folding angle of the uppermost paper of the paper stack, and an air blowing piece which blows towards the upper half paper adsorbed by the air suction piece. This folder relies on the cooperation of inhaling the piece and blowing the piece to accomplish the half book of handling of a paper on the top of the paper buttress, has not only simplified the mechanical structure of folder but also improved the work efficiency of folder, can guarantee moreover that the air current that blows off only produces the effect to a paper on the top, can not influence other papers below, has improved the success rate of half book processing.
Description
Technical Field
The present invention relates to a folder for producing folded tissues.
Background
The folder that produces folded towels often requires half-folding the uppermost sheet of each stack of products, i.e., folding the upper half of the uppermost sheet back again so that the leading end of the uppermost sheet is positioned at the opening of the package for the consumer to pull the first sheet from the package.
In order to realize the half-folding treatment, the existing folding machine mainly adopts two processing modes, one mode is that in the process of stacking tissues, the lower half part of the lowest tissue in each pile of tissues is made to droop, then the drooping half part of the tissues are folded again by two opposite plug-in units moving in opposite directions, and finally the whole pile of tissues is inverted up and down, so that the lowest tissue is turned to the top, and the half-folding treatment is finished; the other processing mode is that in the process of stacking the paper towels, the partial position of the top of the whole stack of paper towels is pressed by the folding piece, then the edge of the topmost paper towel is blown, so that the part, which is not pressed by the folding piece, of the topmost paper towel is lifted by airflow and then folded in half again, and half-folding treatment is achieved.
In the first processing mode, two pairs of insertion pieces moving oppositely are required to be arranged, and each pile of paper towels also needs to be inverted up and down, so that the mechanical structure is complicated, and the processing efficiency is low. The second processing method has the defect that a plurality of paper towels close to the top of the paper stack are easily lifted by the airflow at the same time, and the problem that the airflow only lifts the upper half paper of the topmost paper towel is difficult to ensure, so that the half-folding treatment fails.
Disclosure of Invention
The object of the present invention is to provide a folder for half-folding sheets with an air flow, which overcomes the drawbacks of the prior art described above.
The invention is realized by the following steps: the folding machine realizes half-folding of paper by airflow, and the slitting and folding mechanism is used for slitting and folding continuous paper;
the receiving piece is positioned below the slitting and folding mechanism and used for receiving the slit and folded paper output from the slitting and folding mechanism, so that the paper is stacked on the receiving piece to form a paper stack;
a stacking member located above the receiving member, for clamping the paper stack reaching the predetermined number of paper sheets together with the receiving member and moving the paper stack to a position where the receiving member is separated from the receiving paper sheets;
in particular, the folding machine is also provided with:
the air suction piece is used for extending into a folded angle formed by folding the uppermost piece of paper in the paper stack clamped by the splitting piece and the bearing piece together, and partially adsorbing the upper half piece of paper of the folded angle;
and an air blowing member for blowing air toward the upper half sheet adsorbed by the air adsorbing member to fold the non-adsorbed portion of the upper half sheet in half toward the adsorbed portion to form a new folded angle.
In a preferred embodiment, the suction member is provided on the stack.
In a preferred embodiment, the blowing member is provided on the stack.
In a preferred embodiment, the suction members are arranged at intervals in a direction parallel to the width of the sheet.
In a preferred embodiment, the air blowing members are arranged at intervals in a direction parallel to the width of the paper sheet.
In a preferred embodiment, a pressing member is provided to press a paper corner formed by blowing air from the air blowing member.
The invention has the advantages that: the half-folding treatment of the uppermost paper of the paper stack is completed by the cooperation of the air suction piece and the air blowing piece, two plug-in pieces which move in opposite directions do not need to be specially arranged for the half-folding treatment, the half-folding treatment is directly carried out on the uppermost paper of the paper stack, the paper stack does not need to be inverted from top to bottom, the mechanical structure of the folding machine is simplified, and the working efficiency of the folding machine is improved. Moreover, because the air suction piece extends into a folded angle formed by folding the uppermost paper of the paper stack, the paper below the folded angle can not be lifted by the air flow blown out by the air blowing piece due to the blockage of the air suction piece, so that the air flow blown out by the air blowing piece only can act on the uppermost paper, other paper below the uppermost paper can not be influenced, and the success rate of half-folding treatment is improved.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the suction member extending into a corner formed by folding the uppermost sheet of paper in the stack;
FIG. 3 is a schematic view of a blocker beginning to replace a stack;
FIG. 4 is a schematic view of the stack moving with the acceptor clamping the stack;
FIG. 5 is a schematic view of the air blowing member cooperating with the air sucking member to produce a half-folding effect on the uppermost sheet of the stack;
FIG. 6 is a schematic view of a transfer of a stack of sheets from a stacker to a conveyor mechanism;
fig. 7 to 8 are schematic views of the pressing member being pressed to the top of the stack;
fig. 9 is a schematic view of the receiving member, the stacking member, and the blocking member after repositioning.
Detailed Description
To facilitate an understanding of the invention, the invention is described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, unless the context clearly dictates otherwise.
Referring to fig. 1, a folder for half-folding paper with air flow includes a slitting and folding mechanism for slitting and folding a continuous sheet of paper. The main structure of the slitting and folding mechanism comprises two folding rollers 1 which are parallel and close to each other, scrapers 2 which are close to the folding rollers 1 are respectively arranged above the two folding rollers 1, and a plurality of slotting tools 3 and a plurality of grooves 4 which are alternately arranged along the circumferential direction are arranged on the roller surface of each folding roller 1. During operation of the folder, two successive sheets 5 of base paper pass simultaneously through the nip of the two folding rollers 1. As the two folding rollers 1 rotate, the blades 3 of the two folding rollers 1 periodically scrape the doctor blade 2 adjacent thereto, thereby cutting the two continuous base sheets 5 into individual sheets. Meanwhile, with the rotation of the two folding rollers 1, the slotting blades 3 of the two folding rollers 1 are alternately inserted into the grooves 4 of the other side, thereby folding each sheet of paper in half. So, cut folding mechanism and realized cutting and the function of fifty percent discount to continuous paper.
It should be noted that the structure and operation of the slitting and folding mechanism are only one embodiment and not exclusive. The slitting and folding mechanism provided that the mechanism with the same function as the slitting and folding mechanism can be realized belongs to the slitting and folding mechanism.
A bearing piece 6 is arranged below the slitting and folding mechanism. The paper which is output from the slitting and folding mechanism and is slit and folded in half is received by the receiving piece 6. The sheets are stacked on the receiving member 6 to form a sheet stack 7. Specifically, in the illustrated embodiment, the slit and folded paper sheet continuously falling from the nip of the two folding rollers 1 is received by the receiving member 6. As the height of the sheet bundle 7 formed by stacking the sheets on the stacker 6 increases, the stacker 6 gradually moves downward to leave a space for stacking the sheets. On both sides of the receiving element 6, there are stop plates 8, which serve to prevent the stack 7 from skewing.
It should be noted that, in order to ensure that the cut and folded paper can timely fall off the folding roller 1 and fall onto the receiving member 6, the folding machine needs to be provided with other parts such as a shifting fork, but since the parts are not directly related to the purpose of the present invention, the drawings omit the parts so as to more clearly show the structure and the working principle directly related to the purpose of the present invention.
It should be noted that in addition to fig. 8 and 9, each of the figures has a floating space between the sheets near the top of the stack 7, which is to distinguish the different sheets to clearly show the folding of the sheets. In practice, such a floating spacing between sheets is not necessary.
Above the receiving element 6, a stack 9 is provided. When the number of sheets stacked on the stacker 6 reaches a predetermined number, as shown in fig. 2 to 4, the stacker 9 moves together with the stacker 6 to sandwich the sheet bundle 7 reaching the predetermined number of sheets until the stacker 6 moves to a position away from the stacker 6. Before the receiving member 6 leaves the position for receiving the paper, as shown in fig. 3, the receiving member 6 is temporarily replaced by a blocking member 10, and the paper output from the slitting and folding mechanism is received by the blocking member 10, so that the paper starts to be stacked on the blocking member 10 to form a new paper stack 11.
As a possible example, the blocking member 10 may be omitted by suspending the rotation of the two folding rollers 1 before the receiving member 6 leaves the position for receiving the sheet, and resuming the rotation of the two folding rollers 1 after the receiving member 6 completes the subsequent operation and returns to the position for receiving the sheet.
Referring to fig. 1, a suction member 12 is provided on the stacking member 9. As shown in fig. 2 to 4, when the folding member 9 moves with the receiving member 6 with the sheet bundle 7 therebetween, the suction member 12 is inserted into a folded corner 13 formed by folding the uppermost sheet of the sheet bundle 7 sandwiched between the folding member 9 and the receiving member 6 with the movement of the folding member 9, and when the folding member 9 moves with the receiving member 6 with the sheet bundle 7 therebetween to a position where the receiving member 6 is separated from the sheet bundle, as shown in fig. 4, the upper half sheet 14 of the folded corner 13 is partially sucked by the suction member 12.
Referring to fig. 1, a blowing member 15 is provided on the split stack 9. As shown in fig. 5, when the suction unit 12 sucks a part of the upper half sheet 14 of the corner 13, the air blowing unit 15 blows air toward the upper half sheet 14, and the part of the upper half sheet 14 that is not sucked is folded in half toward the part that is sucked, thereby forming a new corner 16. This completes the half-folding process of the uppermost sheet of the sheet stack 7. In the process that the air blowing piece 15 blows air towards the upper half paper 14, the paper below the folded angle 13 is blocked by the air absorbing piece 12 (for the illustrated embodiment, it can also be said that the paper is blocked by the folding piece 9), so that the paper cannot be lifted by the air flow blown by the air blowing piece 15, and thus the air flow blown by the air blowing piece 15 can only lift the upper half paper 14 of the uppermost paper, and cannot affect other paper below, and the success rate of half-folding treatment is improved.
In order to better shape the new fold 16 formed by blowing air from the air blowing member 15, as shown in fig. 6 to 8, the folding machine is further provided with a paper pressing member 17, and the new fold 16 formed by blowing air from the air blowing member 15 is pressed by the paper pressing member 17, so that the fold 16 is better shaped.
As shown in fig. 6 to 7, the receiving member 6 transfers the sheet pile 7 after the half-folding process to the conveying mechanism 18, and the conveying mechanism 18 transfers the sheet pile 7 to another station or another device. The conveyor 18 may be, but is not limited to, a belt conveyor.
After the stacker 6 has transferred the sheet pile 7 to the conveying mechanism 18, as shown in fig. 9, the stacker 6, the stacking unit 9, and the blocking unit 10 are returned to the positions shown in fig. 1, and the sheet pile 11 newly formed on the blocking unit 10 is transferred to the stacker 6. The receiving member 6 and the blocking member 10 may be arranged in a comb-like shape so that the receiving member 6 and the blocking member 10 can be overlapped at the same height to allow the sheet pile 7 to be transferred from the blocking member 10 to the receiving member 6.
It should be noted that the suction member 12 and the blowing member 15 of the illustrated embodiment are both disposed on the stacking member 9, so that only different air flow passages are required to be disposed on the stacking member 9 as the suction member and the blowing member, respectively, and the mechanical structure is simplified to the utmost. As another possible embodiment, the suction member 12 and the blowing member 15 may be members separate from the stack 9.
In the preferred embodiment, the suction members 12 are spaced apart in a direction parallel to the width of the sheet, i.e., in a direction perpendicular to the plane of the drawing. This allows better adaptation to paper of different widths. However, as another possible embodiment, there may be only one air absorbing member 12, and the air nozzles of the air absorbing member 12 are elongated slits to fit the width of the paper.
In the preferred embodiment, the air blowing members 15 are arranged at intervals in a direction parallel to the width of the paper, that is, in a direction perpendicular to the plane of the drawing. This allows better adaptation to paper of different widths. However, as another possible embodiment, there may be only one blowing member 15, and the air nozzles of the blowing member 15 are elongated slits to fit the width of the paper.
The driving mechanism for driving the receiving member 6, the stacking member 9, the blocking member 10, the air sucking member 12 and the air blowing member 15 to move can be selected from an air cylinder, a servo motor or other driving structures.
It should be noted that, during the above-described movement from fig. 1 to fig. 9, the two folding rollers 1 are continuously rotated, but the drawing is simplified and the folding rollers are not drawn strictly in accordance with the change in the rotation angle of the folding rollers.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (6)
1. Folding machine for realizing half-folding of paper by air flow, comprising:
the cutting and folding mechanism is used for cutting and folding continuous paper;
the receiving piece is positioned below the slitting and folding mechanism and used for receiving the slit and folded paper output from the slitting and folding mechanism, so that the paper is stacked on the receiving piece to form a paper stack;
a stacking member located above the receiving member, for clamping the paper stack reaching the predetermined number of paper sheets together with the receiving member and moving the paper stack to a position where the receiving member is separated from the receiving paper sheets;
it is characterized in that the utility model is also provided with:
the air suction piece is used for extending into a folded angle formed by folding the uppermost piece of paper in the paper stack clamped by the splitting piece and the bearing piece together, and partially adsorbing the upper half piece of paper of the folded angle;
and an air blowing member for blowing air toward the upper half sheet adsorbed by the air adsorbing member to fold the non-adsorbed portion of the upper half sheet in half toward the adsorbed portion to form a new folded angle.
2. The folder for folding sheets of paper in half with air flow as claimed in claim 1, wherein: the air absorbing member is disposed on the stack.
3. The folder for folding sheets of paper in half with air flow as claimed in claim 1, wherein: the blowing member is provided on the stack.
4. The folder for folding sheets of paper in half with air flow as claimed in claim 1, wherein: the suction members are arranged at intervals in a direction parallel to the width of the sheet.
5. The folder for folding sheets of paper in half with air flow as claimed in claim 1, wherein: the air blowing members are arranged at intervals in a direction parallel to the width of the paper.
6. The folder for half-folding paper sheets with air flow as claimed in claim 1, wherein a pressing member is provided for pressing a paper sheet corner formed by blowing air from said blowing member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010955305.3A CN112193910A (en) | 2020-09-11 | 2020-09-11 | Folding machine for realizing half-folding of paper by airflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010955305.3A CN112193910A (en) | 2020-09-11 | 2020-09-11 | Folding machine for realizing half-folding of paper by airflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112193910A true CN112193910A (en) | 2021-01-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010955305.3A Pending CN112193910A (en) | 2020-09-11 | 2020-09-11 | Folding machine for realizing half-folding of paper by airflow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112193910A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180252A (en) * | 2022-08-01 | 2022-10-14 | 柳州市卓信自动化设备有限公司 | Paper folding device |
-
2020
- 2020-09-11 CN CN202010955305.3A patent/CN112193910A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115180252A (en) * | 2022-08-01 | 2022-10-14 | 柳州市卓信自动化设备有限公司 | Paper folding device |
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