CN219563436U - Slitting device for film - Google Patents
Slitting device for film Download PDFInfo
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- CN219563436U CN219563436U CN202321242823.6U CN202321242823U CN219563436U CN 219563436 U CN219563436 U CN 219563436U CN 202321242823 U CN202321242823 U CN 202321242823U CN 219563436 U CN219563436 U CN 219563436U
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- shaft
- shaft section
- circular knife
- cutter
- outer diameter
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model discloses a slitting device for a film, which comprises: an upper cutter shaft is fixedly sleeved with an upper circular cutter in the circumferential direction; the lower cutter shaft is parallel to the upper cutter shaft, and a lower circular cutter which is in group rolling shearing with the upper circular cutter is fixedly sleeved on the circumference of the lower cutter shaft; the upper circular knife is clamped between the first shaft section and the second shaft section of the upper knife shaft; the lower circular cutter is clamped between the third shaft section and the fourth shaft section of the lower cutter shaft; the outer diameter of the upper circular knife is consistent with the outer diameter of the first shaft section and is larger than the outer diameter of the second shaft section; the outer diameter of the lower circular knife is consistent with the outer diameter of the fourth shaft section and is larger than the outer diameter of the third shaft section; the first shaft section is radially opposite to the third shaft section. The problem that lotus leaves are generated in the trimming is effectively solved by the group rolling shearing of the films by the upper circular knife and the lower circular knife.
Description
Technical Field
The utility model relates to the technical field of slitting equipment, in particular to a slitting device for a film.
Background
A slitting machine is a mechanical device for dividing a wide-width material into a plurality of narrow-width materials, and is commonly used for slitting various film materials.
At present, the distance between blades of a conventional splitting machine is fixed, and the width specification obtained by splitting is single and cannot be suitable for splitting different specifications and widths. In the slitting process, the flatness of the cut edges is a key for ensuring the quality of the narrow film.
CN216804642U discloses a shopping bag hot-pressing slitting machine, although the axial sliding of the blades along the supporting arm is realized, thereby realizing the distance adjustment between the plurality of groups of blades.
The prior art has the defects that:
the cutting processing of the packaging bag film is carried out by the corresponding parts of the plurality of groups of blades and the plurality of groups of gaskets, but the cutting parts are in line contact, the cross section of the blade edge of the blade is conical, materials are mechanically extruded to two sides when the pressure is applied, and under the strong pressure, the blade edge overcomes the internal tension of the packaging bag film to separate the packaging bag film, so that the lotus leaf edge is easy to generate.
Therefore, there is a need for an improvement in the slitting device for films of the prior art.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provides a slitting device for films, which is used for effectively solving the problem that lotus leaves are generated in edge cutting through grouping rolling shearing of films by an upper circular knife and a lower circular knife.
In order to achieve the technical effects, the technical scheme of the utility model is as follows: a slitting device for films, comprising:
an upper cutter shaft is fixedly sleeved with an upper circular cutter in the circumferential direction;
the lower cutter shaft is parallel to the upper cutter shaft, and a lower circular cutter which is in rolling shearing with the upper circular cutter in groups is fixedly sleeved on the lower cutter shaft in the circumferential direction;
the upper circular cutter is clamped between a first shaft section and a second shaft section of the upper cutter shaft;
the lower circular knife is clamped between the third shaft section and the fourth shaft section of the lower knife shaft;
the outer diameter of the upper circular knife is consistent with the outer diameter of the first shaft section and is larger than the outer diameter of the second shaft section;
the outer diameter of the lower circular knife is consistent with the outer diameter of the fourth shaft section and is larger than the outer diameter of the third shaft section;
the first shaft section is radially opposite to the third shaft section.
The second shaft section and/or the third shaft section comprises an elastic shaft sleeve, and the elastic shaft sleeve is provided with a shaft sleeve end face which is abutted with the upper circular knife and/or the lower circular knife which are adjacent.
The elastic shaft sleeve is provided with axially opposite sleeve end parts, and the outer diameter of the elastic shaft sleeve is gradually increased from the axial middle section to the two sleeve end parts; the outer diameter of the sleeve end is equal to the outer diameter of the corresponding upper circular knife and/or lower circular knife.
The preferable technical scheme is that the upper cutter shaft is provided with at least three upper circular cutters, and the lower circular cutters are arranged in one-to-one correspondence with the upper circular cutters.
The preferable technical scheme is that the upper circular cutters and the lower circular cutters of adjacent groups are provided with axially equal feeding cutting intervals, and the feeding cutting intervals are positioned at the radial side of the elastic shaft sleeve.
The preferable technical scheme is that the upper cutter shaft and the lower cutter shaft comprise a core shaft and shaft sleeves sleeved on the periphery of the core shaft, and the upper circular cutter and/or the lower circular cutter are clamped between corresponding adjacent shaft sleeves.
The preferable technical scheme is that at least one upper circular knife and/or lower circular knife is detachably and fixedly connected with the corresponding mandrel.
The preferable technical scheme is that the automatic feeding and cutting device further comprises a gasket, wherein the shaft sleeve positioned in the feeding and cutting interval is a first shaft sleeve, and the gasket is clamped between the first shaft sleeve and the corresponding upper circular knife and lower circular knife.
The utility model has the advantages and beneficial effects that:
the slitting device for the film is reasonable in structure, the upper circular knife and the lower circular knife are used for rolling and shearing the film in groups, the film is sheared under the action of shearing force, the film is less damaged in trimming, and the formation of lotus leaf edges is effectively avoided; the outer diameter of the upper circular knife is consistent with the outer diameter of the first shaft section and is larger than the outer diameter of the second shaft section; and the outer diameter of the lower circular knife is consistent with that of the fourth shaft section and is larger than that of the third shaft section, the first shaft section is radially opposite to the third shaft section, and after the films on the two sides of the cutting edges of the upper circular knife and the lower circular knife are sheared, the films are flatly attached to the first shaft section and the fourth shaft section, so that the edge cutting is further prevented from forming a lotus leaf edge.
Drawings
FIG. 1 is a schematic view of a slitting device for films according to the present utility model;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 2;
FIG. 4 is a schematic view of another (not including an elastic sleeve) construction of the slitting device for films of the present utility model.
In the figure: 1. an upper cutter shaft; 2. a lower cutter shaft; 3. an elastic sleeve; 4. a shaft sleeve; 5. a gasket; 10. a circular knife is arranged; 11. a mandrel; 20. a circular knife is arranged; 100. feeding and cutting intervals; 101. a first shaft section; 102. a second shaft section; 103. a third shaft section; 104. and a fourth shaft section.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings and examples. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.
In the description of the utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present utility model can be understood by those of ordinary skill in the art in a specific case.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other like elements in a process, method, article or apparatus that comprises the element.
As shown in fig. 1 to 4, the utility model discloses a slitting device for a film, which comprises an upper cutter shaft 1 and a lower cutter shaft 2 which are parallel to each other, wherein an upper circular cutter 10 is fixedly sleeved on the upper cutter shaft 1 in the circumferential direction; a lower circular knife 20 which is in rolling shearing with the upper circular knife 10 is fixedly sleeved on the circumference of the lower knife shaft 2; the upper circular knife 10 is clamped between a first shaft section 101 and a second shaft section 102 of the upper knife shaft 1; the lower circular knife 20 is clamped between the third shaft section 103 and the fourth shaft section 104 of the lower knife shaft 2; the outer diameter of the upper circular knife 10 is consistent with the outer diameter of the first shaft section 101 and is larger than the outer diameter of the second shaft section 102; the outer diameter of the lower circular knife 20 is identical to the outer diameter of the fourth shaft section 104 and is larger than the outer diameter of the third shaft section 103; the first shaft section 101 is radially opposite the third shaft section 103.
The upper circular knife 10 and the upper knife shaft 1 are integrally connected or detachably connected, the detachable connection is convenient for replacing the upper circular knife 10, and the application range is wider; similarly, the lower circular knife 20 and the lower knife shaft 2 are integrally connected or detachably connected, the detachable connection is convenient for replacing the lower circular knife 20 which is in rolling shearing with the upper circular knife 10 in groups, and the application range is wider. The number of groups of the upper circular knife 10 and the lower circular knife 20 can be one, and the film is simply divided into two strips; the number of groups of the upper circular knife 10 and the lower circular knife 20 can be two, and the film is cut to obtain a narrow and wide product with the required specification and two side edges; the number of groups of the upper circular knife 10 and the lower circular knife 20 can be three, and the film is cut to obtain two narrow and wide products with the same or different widths, and two side edges. The number of groups of the upper circular knife 10 and the lower circular knife 20 is set according to actual requirements.
When the number of the groups of the upper circular knife 10 and the lower circular knife 20 is more than two, the first shaft section 101 and the second shaft section 102 for clamping the upper circular knife 10 are staggered along the axial direction of the upper knife shaft 1, for example: the first shaft section 101, the upper circular knife 10 and the second shaft section 102 are combined and sequentially arranged along the axial direction of the upper cutter shaft 1; the third shaft section 103 and the fourth shaft section 104 for clamping the lower circular knife 20 are staggered along the axial direction of the lower knife shaft 2, for example: the third shaft section 103, the lower circular knife 20 and the fourth shaft section 104 are sequentially arranged along the axial direction of the lower cutter shaft 2 in combination.
As shown in fig. 2 to 3, the second shaft section 102 and/or the third shaft section 103 includes an elastic sleeve 3, and the elastic sleeve 3 has a sleeve end surface abutting against the adjacent upper circular knife 10 and/or lower circular knife 20. The second shaft section 102 comprises an elastic shaft sleeve 3, when the elastic shaft sleeve 3 is provided with a shaft sleeve end surface abutting against the adjacent upper circular knife 10, the groups of the upper circular knife 10 and the lower circular knife 20 can be one group, the film is simply divided into two pieces, and the edge cutting does not form a lotus leaf edge; the number of groups of the upper circular knife 10 and the lower circular knife 20 can be two, and the film is cut to obtain a narrow and wide product with the required specification and two side edges, and no lotus leaf edge is formed by the cut edges. Similarly, the third shaft segment 103 includes an elastic shaft sleeve 3, the elastic shaft sleeve 3 has a sleeve end surface abutting against the adjacent lower circular knife 20, the number of groups of the upper circular knife 10 and the lower circular knife 20 may be one, and the number of groups of the upper circular knife 10 and the lower circular knife 20 may be two. The second shaft section 102 and the third shaft section 103 comprise an elastic shaft sleeve 3, the elastic shaft sleeve 3 is provided with shaft sleeve end faces abutting against the upper circular knife 10 and the lower circular knife 20 which are adjacent, the grouping number of the upper circular knife 10 and the lower circular knife 20 is three groups optimally, the film is cut, two narrow and wide products with required specifications and two side edges are cut, and no lotus leaf edge is formed in the cut edges.
The elastic shaft sleeve 3 is provided with axially opposite sleeve end parts, and the outer diameter of the elastic shaft sleeve 3 is gradually increased from the axial middle section to the two sleeve end parts; the outer diameter of the sleeve end is equal to the outer diameter of the corresponding upper 10 and/or lower 20 circular knife. The outer diameter of the elastic shaft sleeve 3 gradually increases from the axial middle section to the two sets of end parts, and the elastic shaft sleeve can be in smooth transition or step transition. When the upper circular knife 10 and the lower circular knife 20 of the group rolling shears shear the film, when the cutting edges of the upper circular knife 10 and/or the lower circular knife 20 are in opposite contact with the elastic shaft sleeve 3, the elastic shaft sleeve 3 generates acting force opposite to the shearing force, and further the edge cutting of the film is prevented from generating lotus leaf edges, and the edge cutting of the obtained narrow and wide product is smooth.
In the actual slitting work, narrow and wide products with the specification of 250mm are required to be slit, and in order to improve the slitting efficiency and stability and improve the material utilization rate of wide films, at least three upper circular knives 10 are arranged on the upper cutter shaft 1, and the lower circular knives 20 are arranged in one-to-one correspondence with the upper circular knives 10. A first shaft section A, an upper circular cutter A and a second shaft section A are sequentially arranged in the axial direction of the upper cutter shaft 1, a first shaft section B, an upper circular cutter B and a second shaft section B, and a first shaft section C, an upper circular cutter C and a second shaft section C; and a third shaft section A, a lower circular knife A and a fourth shaft section A, a third shaft section B, a lower circular knife B and a fourth shaft section B, a third shaft section C, a lower circular knife C and a fourth shaft section C are sequentially arranged in the axial direction of the lower cutter shaft.
In order to produce narrow and wide products with the same width in the same batch, the upper circular knives 10 and the lower circular knives 20 of adjacent groups are provided with axially equal feeding cutting intervals 100, and the feeding cutting intervals 100 are positioned at the radial side of the elastic shaft sleeve 3. The distance between the opposite end surfaces of the upper circular knife A and the upper circular knife B is equal to the distance between the opposite end surfaces of the upper circular knife B and the upper circular knife C; the distance between the opposite end surfaces of the lower circular knife A and the lower circular knife B is equal to the distance between the opposite end surfaces of the lower circular knife B and the lower circular knife C. The outer diameters of the second shaft section 102 and the third shaft section 103 are different, so that a feeding slitting interval 100 is formed.
The upper cutter shaft 1 and the lower cutter shaft 2 comprise a mandrel 11 and shaft sleeves 4 sleeved on the periphery of the mandrel 11, and the upper circular cutter 10 and/or the lower circular cutter 20 are clamped between the corresponding adjacent shaft sleeves 4. Because the upper circular knife 10 and the shaft sleeve 4 are detachable, the upper circular knife 10 is convenient to replace, and the corresponding lower circular knife 20 and the shaft sleeve 4 are detachable, the application range is wider, so that the upper circular knife 10 and the lower circular knife 20 can be combined by replacing the shaft sleeves 4 with different shaft lengths to divide the films with the same specification and wide width into narrow and wide width products with different specifications.
As shown in fig. 4, in order to simplify the structure and adapt to the slitting of narrow and wide products with different specifications, the device further comprises a gasket 5, wherein the shaft sleeve 4 positioned in the feeding slitting space 100 is a first shaft sleeve, and the gasket 5 is clamped between the first shaft sleeve and the corresponding upper circular knife 10 and lower circular knife 20. In order to smoothly feed the film and improve the quality of the slit narrow and wide products, the outer diameter of the gasket 5 is consistent with the outer diameter of the adjacent first shaft sleeve. The gap 100 is increased by clamping the gasket 5, so that the thin film with the original specification and the wide width is divided into narrow and wide width products with different specifications, the flexibility of application is better, the operation production cost is low, the efficiency is high, and only local adjustment is needed. Under the condition that the total length of the mandrel 11 is unchanged, firstly, replacing the shaft sleeve corresponding to the first shaft section A with the shaft sleeve with small shaft length, keeping the specification and the size of the upper circular knife 10 unchanged, and clamping gaskets 5 with corresponding specifications between the upper circular knife A and the second shaft section A and between the first shaft section B and the upper circular knife B, wherein the sum of the thicknesses of the gaskets 5 is equal to the shaft length difference value of the shaft sleeve before and after the replacement of the first shaft section A, and the feeding slitting interval 100 adjusted by the gaskets 5 is adjusted to be 260mm in specification.
At least one upper circular knife 10 and/or lower circular knife 20 is detachably and fixedly connected with the corresponding mandrel 11. In order to obtain better quality of the product, the upper circular knife 10 and the lower circular knife 20 are detachably and fixedly connected with the corresponding mandrel 11. Therefore, when the total length of the mandrel 11 is unchanged, the upper circular knife B and the lower circular knife B can be detached and switched to the gasket 5, the upper circular knife 10 and the lower circular knife 20 are not grouped to form the rolling shears, and the feeding and slitting interval 100 after the replacement of the gasket 5 is adjusted to be 500mm in specification. The shaft sleeve corresponding to the first shaft section A can be combined to be replaced by a shaft sleeve with small shaft length, the shaft length after replacement has a difference value, and a gasket with corresponding thickness is used for replacement, so that a narrow and wide product with the specification of more than 500mm is prepared.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that it will be apparent to those skilled in the art that several modifications and variations can be made without departing from the technical principle of the present utility model, and these modifications and variations should also be regarded as the scope of the utility model.
Claims (8)
1. A slitting device for films, comprising:
an upper cutter shaft (1) is fixedly sleeved with an upper circular cutter (10) in the circumferential direction;
the lower cutter shaft (2) is parallel to the upper cutter shaft (1), and a lower circular cutter (20) which is in group rolling shearing with the upper circular cutter (10) is fixedly sleeved in the circumferential direction;
the upper circular knife (10) is clamped between a first shaft section (101) and a second shaft section (102) of the upper knife shaft (1);
the lower circular knife (20) is clamped between a third shaft section (103) and a fourth shaft section (104) of the lower knife shaft (2);
the outer diameter of the upper circular knife (10) is consistent with the outer diameter of the first shaft section (101) and is larger than the outer diameter of the second shaft section (102);
the outer diameter of the lower circular knife (20) is consistent with the outer diameter of the fourth shaft section (104) and is larger than the outer diameter of the third shaft section (103);
the first shaft section (101) is radially opposite to the third shaft section (103).
2. The slitting device for films according to claim 1, characterized in that the second shaft section (102) and/or the third shaft section (103) comprises an elastic sleeve (3), the elastic sleeve (3) having a sleeve end face abutting against the adjacent upper circular knife (10) and/or lower circular knife (20).
3. A slitting device for films according to claim 2, characterized in that the elastic sleeve (3) has axially opposite sleeve ends, the outer diameter of the elastic sleeve (3) increasing gradually from an axially intermediate section to both sleeve ends; the outer diameter of the sleeve end is equal to the outer diameter of the corresponding upper circular knife (10) and/or lower circular knife (20).
4. A slitting apparatus for films according to claim 2 or 3, wherein the upper cutter shaft (1) is provided with at least three upper circular cutters (10), and the lower circular cutters (20) are provided in one-to-one correspondence with the upper circular cutters (10).
5. The slitting device for films according to claim 4, characterized in that there is an axially equal running slitting space (100) between the upper circular knives (10) and the lower circular knives (20) of adjacent groups, said running slitting space (100) being located radially sideways of the elastic sleeve (3).
6. The slitting device for films according to claim 1 or 5, wherein the upper cutter shaft (1) and the lower cutter shaft (2) each comprise a core shaft (11) and a shaft sleeve (4) sleeved on the periphery of the core shaft (11), and the upper circular cutter (10) and/or the lower circular cutter (20) are clamped between the corresponding adjacent shaft sleeves (4).
7. Slitting device for films according to claim 6, characterized in that at least one of the upper (10) and/or lower (20) circular knives is/are detachably fixedly connected to the respective spindle (11).
8. The slitting device for films according to claim 5, further comprising a spacer (5), wherein the sleeve (4) located in the feeding slitting space (100) is a first sleeve, and the spacer (5) is sandwiched between the first sleeve and the corresponding upper (10) and lower (20) circular knives.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321242823.6U CN219563436U (en) | 2023-05-22 | 2023-05-22 | Slitting device for film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321242823.6U CN219563436U (en) | 2023-05-22 | 2023-05-22 | Slitting device for film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219563436U true CN219563436U (en) | 2023-08-22 |
Family
ID=87669977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321242823.6U Active CN219563436U (en) | 2023-05-22 | 2023-05-22 | Slitting device for film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219563436U (en) |
-
2023
- 2023-05-22 CN CN202321242823.6U patent/CN219563436U/en active Active
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