CN211591533U - Sheet positioning embossing device - Google Patents
Sheet positioning embossing device Download PDFInfo
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- CN211591533U CN211591533U CN201921660661.1U CN201921660661U CN211591533U CN 211591533 U CN211591533 U CN 211591533U CN 201921660661 U CN201921660661 U CN 201921660661U CN 211591533 U CN211591533 U CN 211591533U
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- guide wheel
- roller
- embossing
- moving mechanism
- sheet
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Abstract
A sheet positioning embossing device comprises a rotary embossing roller and a rotary movable knife roller, wherein concave-convex patterns are arranged on the roller surface of the embossing roller, the diameter of the embossing roller and the cutting pitch of the movable knife roller meet the relation of pi multiplied by D = n multiplied by L, D is the diameter of the embossing roller, L is the cutting pitch of the movable knife roller, and n is a natural number. The device can avoid the relative position of the patterns and the cutting lines formed on the sheet material from generating accumulative deviation, and avoid the interval error between the patterns and the cutting lines on the sheet material from becoming bigger and bigger.
Description
Technical Field
The utility model relates to a device for forming patterns and cutting lines on continuous sheets.
Background
The sheet positioning and embossing device is widely applied to the production of products such as toilet roll paper, drawing type facial tissue, non-woven fabrics and the like. This apparatus rolls patterns and cutting lines arranged at a predetermined interval on a continuous sheet by using a rotary embossing roller and a rotary moving blade roller, and maintains the patterns and the cutting lines in a predetermined relative positional relationship. However, the relative positions of the patterns and the cutting lines formed on the sheet by the existing sheet positioning and embossing device are subjected to accumulative deviation, so that the spacing error of the patterns and the cutting lines on the sheet is larger and larger.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sheet location knurling device, the device can avoid the relative position of the decorative pattern that forms and line of cut on the sheet to take place accumulative deviation.
The utility model discloses a realize like this: the sheet positioning embossing device comprises a rotary embossing roller and a rotary movable knife roller, wherein concave-convex patterns are arranged on the roller surface of the embossing roller, the diameter of the embossing roller and the cutting pitch of the movable knife roller meet the relation of pi multiplied by D = n multiplied by L, D is the diameter of the embossing roller, L is the cutting pitch of the movable knife roller, and n is a natural number which is larger than or equal to 1.
As an alternative embodiment, the embossing roller and the moving blade roller are mounted on the same frame.
As an alternative embodiment, a first guide wheel and a second guide wheel for guiding the direction of the sheet are arranged between the embossing roller and the movable knife roller, the central axes of the first guide wheel and the second guide wheel are parallel, the first guide wheel and/or the second guide wheel are connected with a moving mechanism, and the moving mechanism drives the connected guide wheels to move, so that the arc length of the contact part between the circumferential surfaces of the first guide wheel and the second guide wheel and the sheet is changed.
In an alternative embodiment, the first guide wheel is fixed in position, and the moving mechanism drives the second guide wheel to revolve around the first guide wheel.
As an alternative embodiment, the first guide wheel is fixed in position, and the moving mechanism drives the second guide wheel to approach or depart from the first guide wheel.
As an alternative embodiment, the rotating shafts of the first guide wheel and the second guide wheel are mounted on the same bracket, the moving mechanism drives the bracket to rotate so as to enable the first guide wheel and the second guide wheel to move simultaneously, and the rotating surface of the bracket is perpendicular to the central axes of the first guide wheel and the second guide wheel.
In an alternative embodiment, the second guide wheel is mounted on a rotating member in the moving mechanism, and the rotating member is driven by a power element of the moving mechanism to rotate in a reciprocating manner.
In an alternative embodiment, the second guide wheel is mounted on a sliding part in the moving mechanism, and the sliding part is driven by a power element of the moving mechanism to reciprocate linearly.
As an alternative embodiment, the power element of the moving mechanism is a pneumatic cylinder, or a hydraulic cylinder, or an electromagnet, or an electric motor.
As an alternative, a third guide wheel is provided, the third guide wheel and the first guide wheel being stationary, and the second guide wheel being located between the third guide wheel and the first guide wheel.
The utility model has the advantages that, because the diameter of embossing roller satisfies with the cutting pitch who moves the sword roller relational expression, the device can avoid the relative position of the decorative pattern that forms on the sheet and the line of cut to take place accumulative deviation, avoids the interval error of decorative pattern on the sheet and line of cut to be bigger and bigger.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic view of the portion of FIG. 1 taken from the direction A;
fig. 3 is an embodiment of the invention applied to a rewinding machine;
FIG. 4 is a schematic view of a second configuration of the fine adjustment mechanism;
FIG. 5 is a schematic view of a third configuration of the fine adjustment mechanism;
FIG. 6 is a schematic diagram of a fourth configuration of the fine adjustment mechanism;
fig. 7 is a schematic diagram of a fifth structure of the fine adjustment mechanism.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. 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.
It should be noted that the terms "first", "second" and "third" in the present invention do not denote any particular quantity or order, but rather are used to distinguish one name from another.
The sheet positioning embossing device, as shown in fig. 1, includes an embossing roller 1 that rotates and a movable knife roller 2 that rotates. The roll surface of the embossing roll 1 is provided with a preformed relief pattern. The meaning of the motif includes, but is not limited to, text, symbols, patterns. Next to the embossing roller 1 a bottom roller 3 is arranged parallel to the embossing roller 1. The bottom roller 3 can be a rubber roller with a rubber roller surface, a felt roller with a felt roller surface, or a steel roller with a steel roller surface. The embossing roller 1 and the bottom roller 3 are connected together through mechanical transmission mechanisms such as gears, synchronous belts and the like to rotate synchronously. As the continuous sheet 4 passes between the embossing roller 1 and the backing roller 3, the embossing roller 1 rolls a pattern on the sheet 4.
The movable knife roll 2 is provided with four spiral blades 5. A bottom knife roller 6 which is arranged side by side with the movable knife roller 2 is arranged near the movable knife roller 2. The bed knife roll 6 is fixed against rotation. The bed knife roll 6 is provided with a straight blade 7. The continuous sheet 4 passes between the emboss roller 1 and the backing roller 3, and then passes between the knife roller 2 and the backing roller 6. Or, conversely, the sheet 4 passes between the driven-blade roller 2 and the backing-blade roller 6 and then between the emboss roller 1 and the backing roller 3. The number of the spiral blades 5 on the movable knife roll 2 can be only one at least, and if the number of the spiral blades 5 is more than 1, the spiral blades 5 are uniformly distributed in the circumferential direction of the movable knife roll 2.
With the rotation of the movable knife roller 2, the spiral blades 5 on the movable knife roller 2 periodically scrape against the straight blades 7 on the bottom knife roller 6. Each time a helical blade 5 on the movable knife roller 2 strikes against a straight blade 7 on the bottom knife roller 6, a cutting line is cut in the web 4.
The type of cut line is related to the shape of the blade edge. If the blade on the movable knife roller 2 or the bottom knife roller 6 has a saw-toothed blade edge, the cutting line cut on the sheet 4 is a dotted line-shaped punching line, and the sheet 4 is not cut; if the knife edges of the movable knife roller 2 and the bottom knife roller 6 are smooth, the cutting line cut on the sheet material 4 is a cutting line, and the sheet material 4 is completely cut off.
The diameter of the embossing roller 1 and the cutting pitch of the movable knife roller 2 satisfy the relation pi multiplied by D = n multiplied by L, wherein D is the diameter of the embossing roller 1, L is the cutting pitch of the movable knife roller 2, and n is a natural number which is larger than or equal to 1. The cutting pitch L of the moving blade roller 2 is shown in fig. 2, that is, the distance between every two adjacent cutting lines 8 cut on the sheet 4 by the helical blade 5 of the moving blade roller 2. The pattern outside the cutting line 8 in fig. 2 is the pattern that the embossing roller 1 rolls on the sheet 4.
Note that, although a certain error is allowed on both sides of the equal sign of the relation pi × D = n × L due to the stretching deformation of the sheet 4 (for example, toilet paper, nonwoven fabric, or the like), the relation is considered to be satisfied as long as the error does not exceed ± 3% of pi × D. For example, if π × D =1600mm, then the allowable error is ± 48mm, and as long as there is some natural number ≧ 1, such that 1552mm ≦ n × L ≦ 1648mm, the relationship π × D = n × L is considered to hold.
The roll surface of the embossing roll 1 has a raised pattern, and the diameter D of the embossing roll 1 is based on the diameter of the raised pattern.
The roll surface of the bottom roll 3 may have a concave-convex pattern or may have a concave-convex pattern. In the case of the uneven pattern, the base roll 3 also belongs to the emboss roll, and also satisfies the relation of pi × D = n × L, where D is the diameter of the base roll 3. The other letters in the formula have the same meanings as described above.
The embossing roller 1 and the movable knife roller 2 can be driven to rotate by the same numerical control motor or different numerical control motors respectively. For the former, the embossing roller 1 and the moving knife roller 2 can be connected together through a chain transmission mechanism, a gear transmission mechanism, a synchronous belt transmission mechanism and other transmission mechanisms to form a synchronous rotation linkage relationship. In the latter case, the embossing roller 1 and the movable knife roller 2 can form a linkage relation of synchronous rotation through controlling the two numerical control motors.
As an alternative embodiment, the embossing roller 1 and the moving-blade roller 2 are mounted on the same machine frame. Therefore, the length of the sheet 4 from the embossing roller 1 to the movable cutter roller 2 is as short as possible, and the adverse effects caused by stretching, deviation and the like of the sheet 4 in the running process are reduced. The "same frame" may be a frame body formed by casting, or may be a frame body formed by connecting by welding, bolting, or the like.
The embodiment of the invention applied to a rewinding machine is shown in figure 3. The embossing roller 1 and the moving knife roller 2 are arranged on the same frame 9 of the rewinding machine. Under the traction of the traction wheel, the continuous sheet 4 passes between the embossing roller 1 and the bottom roller 3, and then passes between the driven knife roller 2 and the bottom knife roller 6, and patterns are rolled on the sheet 4 by the embossing roller 1 and the bottom roller 3. A cutting line in the form of an imaginary line, i.e., a perforated line, is cut in the sheet 4 by the movable blade roller 2 in cooperation with the bed blade roller 6. The sheet 4 with the perforated lines and the patterns is rewound into a roll by two rewinding rollers 10, 11 and a platen roller 12. If the sheet 4 is toilet paper, it is a roll of toilet paper that is rewound.
As an alternative embodiment, the present invention may be additionally provided with a fine adjustment mechanism. Taking fig. 3 as an example, a first guide wheel 13 and a second guide wheel 14 for guiding the direction of the sheet are arranged between the embossing roller 1 and the movable knife roller 2, and the central axes of the first guide wheel 13 and the second guide wheel 14 are parallel. The rotating shaft of the first guide wheel 13 is fixed on the frame, and the position of the first guide wheel 13 is fixed. The second guide wheel 14 is connected to the moving mechanism. When fine adjustment is needed, the moving mechanism drives the second guide wheel 14 to revolve around the first guide wheel 13, so that the second guide wheel 14 rotates by an angle theta as shown in fig. 3 and moves to a position shown by a dotted line in the figure, the arc length of a contact part between the circumferential surface of the first guide wheel 13 and the circumferential surface of the second guide wheel 14 and the sheet 4 is changed, namely the length of the sheet 4 wrapped on the first guide wheel 13 and the second guide wheel 14 is changed, the length of the sheet 4 traveling between the embossing roller 1 and the movable knife roller 2 can be finely adjusted, and the relative position of a pattern formed on the sheet 4 and a cutting line can be more accurately controlled.
The fine adjustment mechanism may also adopt the structure shown in fig. 4. In fig. 4, a third guide wheel 15 is added to the fine adjustment mechanism in fig. 3, the rotating shaft of the third guide wheel 15 is fixed on the frame, and the position of the third guide wheel 15 is fixed. The second guide wheel 14 is located between the third guide wheel 15 and the first guide wheel 13. When the second guide wheel 14 needs to be moved, the moving mechanism drives the second guide wheel 14 to revolve around the first guide wheel 13, so that the arc length of the contact part of the circumferential surface of the first guide wheel 13, the second guide wheel 14 and the third guide wheel 15 and the sheet 4 is changed. The dashed line in fig. 4 indicates the position to which the second guide wheel 14 can be moved.
The fine adjustment mechanism may also adopt the structure shown in fig. 5. Referring to fig. 5, the rotating shaft of the first guide wheel 13 is fixed on the frame, and the position of the first guide wheel 13 is fixed. The second guide wheel 14 is connected to the moving mechanism. The moving mechanism drives the second guide wheel 14 to move transversely and linearly, so that the second guide wheel 14 is close to or far away from the first guide wheel 13. The dashed line in fig. 5 indicates the position to which the second guide wheel 14 can be moved. By moving the second guide wheel 14, the arc length of the contact portion between the circumferential surfaces of the first guide wheel 13 and the second guide wheel 14 and the sheet 4 can be changed.
The fine adjustment mechanism may also adopt the structure shown in fig. 6. In fig. 6, a third guide wheel 15 is added on the basis of fig. 5, the rotating shaft of the third guide wheel 15 is fixed on the frame, and the position of the third guide wheel 15 is fixed. The second guide wheel 14 is located between the third guide wheel 15 and the first guide wheel 13. The dashed line in fig. 6 indicates the position to which the second guide wheel 14 can be moved. The moving manner of the second guide wheel 14 is the same as the embodiment shown in fig. 5, and is not described again. By the movement of the second guide wheel 14, the arc length of the contact portion of the circumferential surface of the first guide wheel 13, the second guide wheel 14, and the third guide wheel 15 with the sheet 4 can be changed.
The fine adjustment mechanism may also adopt the structure shown in fig. 7. In fig. 7, the rotating shafts of the first guide wheel 13 and the second guide wheel 14 are mounted on the same bracket 16, and the moving mechanism rotates the bracket 16 so as to move the first guide wheel 13 and the second guide wheel 14 simultaneously. The plane of rotation of the support 16 is perpendicular to the central axis of the first guide wheel 13 and the second guide wheel 14. By the movement of the first guide wheel 13 and the second guide wheel 14, the arc length of the contact portion between the circumferential surface of the first guide wheel 13 and the second guide wheel 14 and the sheet 4 can be changed.
There are various specific embodiments of the moving mechanism in the fine adjustment mechanism. For example, in the embodiment shown in fig. 3 and 4, the second guide wheel 14 may be mounted on a rotating member in the moving mechanism, the rotating member is connected to the frame, and the power element of the moving mechanism drives the rotating member to rotate reciprocally, so as to realize the movement of the second guide wheel 14. As shown in fig. 5 and fig. 6, the second guide wheel 14 may be mounted on a sliding member of the moving mechanism, the sliding member being connected to the frame, and the power element of the moving mechanism drives the sliding member to reciprocate linearly, so as to move the second guide wheel 14. As also shown in fig. 7, the support 16 may be mounted on a rotating member in the moving mechanism, the rotating member being connected to the frame, and the rotating member and the support 16 are driven by a power element of the moving mechanism to rotate reciprocally together, so as to realize the movement of the first guide wheel 13 and the second guide wheel 14. The power element of the moving mechanism can be a cylinder, a hydraulic cylinder, an electromagnet, a motor or the like.
The first guide wheel 13, the second guide wheel 14, and the third guide wheel 15 may be in the shape of a disc or a long cylindrical column. A plurality of guide wheels may be provided along the axial direction of the guide wheels. The guide wheels on the same axis are regarded as the same guide wheel.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. For those skilled in the art, without departing from the spirit of the present invention, several modifications and improvements can be made without departing from the scope of the present invention. The protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. Sheet location knurling device, including rotatory embossing roller and rotatory sword roller that moves, the roll surface of embossing roller is equipped with concave convex pattern, characterized by: the diameter of the embossing roller and the cutting pitch of the movable knife roller satisfy the relation of pi multiplied by D = n multiplied by L, wherein D is the diameter of the embossing roller, L is the cutting pitch of the movable knife roller, and n is a natural number which is larger than or equal to 1.
2. The apparatus according to claim 1, wherein the embossing roller and the movable roller are mounted on the same frame.
3. The device for positioning and embossing the sheet according to claim 1, wherein a first guide wheel and a second guide wheel for guiding the sheet are provided between the embossing roller and the movable knife roller, the central axes of the first guide wheel and the second guide wheel are parallel, the first guide wheel and/or the second guide wheel is connected with a moving mechanism, and the moving mechanism drives the connected guide wheels to move, so that the arc length of the contact part between the circumferential surface of the first guide wheel and the sheet and the circumferential surface of the second guide wheel is changed.
4. The sheet positioning and embossing device as claimed in claim 3, wherein the first guide wheel is fixed in position, and the moving mechanism revolves the second guide wheel around the first guide wheel.
5. The apparatus according to claim 3, wherein the first guide wheel is fixed and the moving mechanism moves the second guide wheel to move closer to or away from the first guide wheel.
6. The apparatus for embossing and positioning sheets as claimed in claim 3, wherein the rotating shafts of the first guide wheel and the second guide wheel are mounted on a same frame, the moving mechanism drives the frame to rotate so as to move the first guide wheel and the second guide wheel simultaneously, and the rotating surface of the frame is perpendicular to the central axes of the first guide wheel and the second guide wheel.
7. The sheet positioning and embossing device as claimed in claim 3, wherein the second guide wheel is mounted on a rotating member in the moving mechanism, and the rotating member is driven by a power element of the moving mechanism to rotate back and forth.
8. The sheet positioning and embossing device as claimed in claim 3, wherein the second guide wheel is mounted on a sliding member in the moving mechanism, and the sliding member is driven by a power element of the moving mechanism to reciprocate linearly.
9. The sheet positioning and embossing device as claimed in claim 3, wherein the power element of the moving mechanism is an air cylinder, a hydraulic cylinder, an electromagnet or a motor.
10. The sheet positioning and embossing device as claimed in claim 3, wherein a third guide wheel is provided, the third guide wheel and the first guide wheel are fixed in position, and the second guide wheel is positioned between the third guide wheel and the first guide wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921660661.1U CN211591533U (en) | 2019-10-05 | 2019-10-05 | Sheet positioning embossing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921660661.1U CN211591533U (en) | 2019-10-05 | 2019-10-05 | Sheet positioning embossing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211591533U true CN211591533U (en) | 2020-09-29 |
Family
ID=72585386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921660661.1U Active CN211591533U (en) | 2019-10-05 | 2019-10-05 | Sheet positioning embossing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211591533U (en) |
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2019
- 2019-10-05 CN CN201921660661.1U patent/CN211591533U/en active Active
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Effective date of registration: 20201222 Address after: 528251 Pingzhou Xianan No.1 Industrial Zone, Nanhai District, Foshan City, Guangdong Province Patentee after: Foshan Baosuo Paper Machinery Manufacture Co.,Ltd. Patentee after: FOSHAN NANHAI BAOTUO PAPER EQUIPMENT Co.,Ltd. Address before: 528251 Pingzhou Xianan No.1 Industrial Zone, Nanhai District, Foshan City, Guangdong Province Patentee before: Foshan Baosuo Paper Machinery Manufacture Co.,Ltd. |