Film tape slitting mechanism and casting machine

Abstract

The utility model relates to the technical field of film cutting equipment, and provides a film belt slitting mechanism and a casting machine, which comprise a cylindrical dead knife for supporting a film belt and a cutting component arranged above the dead knife, the cutting assembly comprises a cutting knife rest and a plurality of cutter parts used for abutting against the dead knife to slit the film belt, the cutter parts are movably arranged on the cutting knife rest in the axial direction of the dead knife, and the cutter parts are arranged side by side at intervals; the plurality of cutter parts are divided into a left cutter part, a right cutter part and at least one middle cutter part positioned between the left cutter part and the right cutter part; a plurality of cutter grooves allowing the cutter components to slide in and slide out are formed in the surface of the dead knife, the cutter grooves are arranged at intervals in the axial direction of the dead knife, and each cutter groove extends in the whole circumferential direction of the dead knife. Compared with the prior art, multiple rolls of roll films can be prepared at the same time, the production efficiency is improved, and the production time is shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of film cutting equipment, in particular to a film strip slitting mechanism and a casting machine. Background Art

[0002] A casting machine refers to a special equipment used to make cast film. It uses a high-precision electronic ceramic casting machine and uses alumina as the main raw material for ceramic casting. The crushed powder is first mixed with a binder, plasticizer, dispersant, and solvent to form a slurry with a certain viscosity. The slurry is then cast or coated on a special base belt. After drying and demolding, it is cut into films of corresponding specifications according to the full width. At present, the cutting device installed in the casting machine can cut the film tape. The cutting device includes a swing arm, a cutter mounted on the swing arm, a swing mechanism that drives the swing arm to swing, and a cutter drive mechanism. The cutter drive mechanism drives the cutter to cut the film tape in a direction perpendicular to the surface of the film tape. However, the traditional cutting device only cuts the film tape and cannot cut the film tape into multiple rolls, which cannot meet the production needs of preparing multiple rolls of film at the same time. Utility Model Content

[0003] One of the purposes of the present invention is to provide a film strip slitting mechanism to solve the technical problem that the slitting mechanism existing in the prior art cannot meet the production requirements of preparing multiple rolls of film at the same time.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a film strip slitting mechanism, comprising a cylindrical bottom knife for supporting the film strip and a cutting assembly arranged above the bottom knife; the cutting assembly comprises a cutting knife holder and a plurality of cutting knife parts for abutting against the bottom knife to slit the film strip, the plurality of cutting knife parts are movably arranged on the cutting knife holder along the axial direction of the bottom knife, and the plurality of cutting knife parts are arranged side by side and at intervals; the plurality of cutting knife parts are divided into a left cutting knife part, a right cutting knife part and at least one middle cutting knife part located between the left cutting knife part and the right cutting knife part; a plurality of knife grooves are formed on the surface of the bottom knife for the cutting knife parts to slide in and out, the plurality of knife grooves are arranged at intervals along the axial direction of the bottom knife, and each knife groove extends along the entire circumference of the bottom knife.

[0005] The technical solution of the present utility model has the following advantages: the film strip slitting mechanism comprises a bottom knife for supporting the film strip and a cutting assembly arranged above the bottom knife; the cutting assembly comprises a plurality of cutting parts that abut against the bottom knife to cut the film strip, and the plurality of cutting parts are movably arranged on the cutting knife holder along the axial direction of the bottom knife, and the plurality of cutting parts are divided into a left cutting part, a right cutting part, and a middle cutting part; a knife groove is formed on the surface of the bottom knife for the cutting parts to slide in and out, so that the film strip on the bottom knife can be cut into multiple strips through the cooperation of the cutting assembly and the bottom knife, wherein the left cutting part and the right cutting part respectively form the edges of the film strip after cutting, and the middle cutting part can cut the film strip into multiple film strips of predetermined widths, so that the production needs of preparing multiple rolls of film at the same time are met, the production efficiency is improved, and the production time is reduced.

[0006] In some embodiments, the number of cutter parts is three, and the three cutter parts are divided into a left cutter part, a right cutter part and a middle cutter part located between the left cutter part and the right cutter part; the bottom knife has a first end and a second end relative to each other; the number of knife grooves is seven, and the seven knife grooves are divided into a first left groove, a second left groove, a third left groove, a middle groove, a first right groove, a second right groove, and a third right groove, wherein the middle groove corresponds to the middle cutter part, the first left groove, the second left groove, and the third left groove are arranged in sequence from the first end to the middle groove and correspond to the left cutter part respectively, and the first right groove, the second right groove, and the third right groove are arranged in sequence from the second end to the middle groove and correspond to the right cutter part respectively.

[0007] In some embodiments, a positioning washer is disposed in each knife groove, and the positioning washer has a positioning end surface for contacting the cutter component.

[0008] In some embodiments, the positioning washer in the middle groove is abutted against the groove wall of the middle groove near the second end, the distance between the positioning end face of the positioning washer in the middle groove and the first left groove is equal to the distance between the positioning end face of the positioning washer in the middle groove and the first right groove, the distance between the positioning end face of the positioning washer in the middle groove and the second left groove is equal to the distance between the positioning end face of the positioning washer in the middle groove and the second right groove, and the distance between the positioning end face of the positioning washer in the middle groove and the third left groove is equal to the distance between the positioning end face of the positioning washer in the middle groove and the third right groove.

[0009] In some embodiments, the film strip slitting mechanism further comprises a driving assembly for driving the bed knife to rotate around the axis of the bed knife, and the bed knife is rotatably supported on the bed knife seat and connected to the driving assembly.

[0010] In some embodiments, the cutting blade holder includes a guide rail, and the cutting blade component includes a mounting portion connected to the guide rail, and a dovetail groove is provided on the mounting portion.

[0011] In some embodiments, the cutting blade component is a pressure-cutting pneumatic slitting blade or a shearing pneumatic slitting blade.

[0012] In some embodiments, the film strip slitting mechanism further includes a dustproof box, and the cutting assembly is installed in the dustproof box.

[0013] In some embodiments, the dustproof box includes a box body and a box door, and the box door is mounted on the box body through a hinge.

[0014] Another object of the present invention is to provide a casting machine to solve the technical problems in the prior art of being unable to prepare multiple rolls of film at the same time and having low production efficiency.

[0015] In order to achieve the object, the utility model provides a casting machine, which includes the above-mentioned film strip slitting mechanism.

[0016] The casting machine adopts the above-mentioned film strip slitting mechanism and can prepare multiple rolls of film at the same time, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a three-dimensional schematic diagram of the bottom knife, cutting assembly and driving assembly in the film strip slitting mechanism provided by an embodiment of the utility model;

[0018] Figure 2 It is a three-dimensional schematic diagram of a bed knife provided by an embodiment of the utility model;

[0019] Figure 3 This is a three-dimensional schematic diagram of the film strip slitting mechanism provided by an embodiment of the present invention after the dustproof box is installed;

[0020] Figure 4 This is a schematic diagram of the main view of the film strip slitting mechanism provided by an embodiment of the present invention after the dustproof box is installed;

[0021] Figure 5 It is a three-dimensional schematic diagram of a tape casting machine provided in an embodiment of the present utility model.

[0022] Description of main component symbols

[0023] 100-film strip slitting mechanism; 10-bottom knife; 101-first end; 102-second end; 11-knife groove; 11a-first left groove; 11b-second left groove; 11c-third left groove; 11d-middle groove; 11e-first right groove; 11f-second right groove; 11g-third right groove; 20-cutting assembly; 21-cutting knife holder; 211-guide rail; 22-cutter component; 22a-left cutter component; 22b-right cutter component; 22c-middle cutter component; 221-blade; 222-installation part; 30-positioning gasket; 30a-positioning end face; 30b-fitting end face; 40-driving assembly; 50-dustproof box; 51-box body; 52-box door; 200-casting machine; 300-film strip. DETAILED DESCRIPTION

[0024] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] In order to enable those skilled in the art to better understand the technical solution of the present invention, the implementation of the present invention is described in detail below with reference to specific drawings.

[0026] For the convenience of description, the "front", "rear", "left", "right", "up" and "down" referred to below are consistent with the front, rear, left, right, up and down directions of the drawings themselves, but do not limit the structure of the present invention.

[0027] Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meanings understood by persons of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar expressions used in the specification and claims of this utility model patent application do not denote any order, quantity, or importance, but are merely used to distinguish different components. Similarly, terms such as "a" or "an" do not denote a limitation on quantity, but rather indicate the presence of at least one.

[0028] like Figures 1 to 4As shown, the film tape slitting mechanism 100 provided in this embodiment includes a cylindrical bottom knife 10 for supporting the film tape 300 and a cutting assembly 20 arranged above the bottom knife 10; the cutting assembly 20 includes a cutting knife holder 21 and a plurality of cutting knife parts 22 for abutting against the bottom knife 10 to cut the film tape 300, and the plurality of cutting knife parts 22 are movably arranged on the cutting knife holder 21 along the axial direction of the bottom knife 10, and the plurality of cutting knife parts 22 are arranged side by side and at intervals; the plurality of cutting knife parts 22 are divided into a left cutting knife part 22a, a right cutting knife part 22b and at least one intermediate cutting knife part 22c located between the left cutting knife part 22a and the right cutting knife part 22b; the surface of the bottom knife 10 forms a plurality of knife grooves 11 for the cutting knife parts 22 to slide in and out, and the plurality of knife grooves 11 are arranged at intervals along the axial direction of the bottom knife 10, and each knife groove 11 extends along the entire circumference of the bottom knife 10.

[0029] The film strip slitting mechanism 100 includes a bottom knife 10 for supporting the film strip 300 and a cutting assembly 20 arranged above the bottom knife 10; the cutting assembly 20 includes a plurality of cutting blade components 22 that abut against the bottom knife 10 to cut the film strip 300, and the plurality of cutting blade components 22 are movably arranged on a cutting blade holder 21 along the axial direction of the bottom knife 10. The plurality of cutting blade components 22 are divided into a left cutting blade component 22a, a right cutting blade component 22b, and a middle cutting blade component 22c; the surface of the bottom knife 10 is formed The knife groove 11 is used for the cutting member 22 to slide in and out. In this way, the film tape 300 on the bottom knife 10 can be cut into multiple strips through the cooperation of the cutting component 20 and the bottom knife 10, wherein the left cutting member 22a and the right cutting member 22b respectively form the edges of the cut film tape 300, and the middle cutting member 22c can cut the film tape 300 into multiple film tapes 300 with predetermined widths. In this way, the production needs of preparing multiple rolls of film at the same time are met, the production efficiency is improved, and the production time is reduced.

[0030] See also Figures 1 to 4 The film tape slitting mechanism 100 provided in this embodiment includes a bottom knife 10 and a cutting assembly 20 arranged above the bottom knife 10. In this embodiment, the bottom knife 10 is used to support the film tape 300. The bottom knife 10 is roughly cylindrical and has a circular cross-section. A plurality of knife grooves 11 are formed on the surface of the bottom knife 10. The plurality of knife grooves 11 are arranged at intervals along the axial direction of the bottom knife 10, and each knife groove 11 extends along the entire circumference of the bottom knife 10.

[0031] See also Figures 1 to 4The cutting assembly 20 provided in this embodiment includes a cutting blade holder 21 and a plurality of cutting blade components 22 for abutting against the bottom knife 10 to cut the film strip 300. The plurality of cutting blade components 22 are movably arranged on the cutting blade holder 21 along the axial direction of the bottom knife 10 (that is, along the direction parallel to the axial direction of the bottom knife 10). The plurality of cutting blade components 22 are arranged side by side and at intervals. In this way, before cutting the film strip 300, the position of the cutting blade component 22 on the cutting blade holder 21 can be moved according to production needs. After adjusting the position of each cutting blade component 22, the cutting blade component 22 is driven to move downward to cut the film strip 300.

[0032] See also Figures 1 to 4 The cutting knife component 22 provided in this embodiment can be a pressure-cutting pneumatic cutting knife or a shearing pneumatic cutting knife. In this embodiment, the cutting knife component 22 is but not limited to a shearing pneumatic cutting knife, which includes a circular blade 221, which generates power through compressed air to drive the blade 221 to rotate at high speed and cut the film strip 300. In this way, the film strip 300 cut by the blade 221 has a smooth and flat cut edge. In addition, the cutting knife component 22 also has the advantages of fast cutting speed and less dust generated during cutting.

[0033] See also Figures 1 to 4 , the multiple cutting components 22 provided in this embodiment are divided into a left cutting component 22a, a right cutting component 22b and at least one middle cutting component 22c located between the left cutting component 22a and the right cutting component 22b. In this embodiment, the number of the cutting components 22 is but not limited to three. The three cutting components 22 are divided into a left cutting component 22a, a right cutting component 22b and a middle cutting component 22c located between the left cutting component 22a and the right cutting component 22b. It can be understood that the middle cutting component 22c cuts a film strip 300 into two film strips 300. At the same time, the left cutting component 22a and the right cutting component 22b respectively cut the outer edges of the film strip 300. In this way, the three cutting components 22 can cut the film strip 300 on a roll of film into two film strips 300 of preset width, and then rewind them into two rolls of film through a receiving mechanism (not shown).

[0034] See also Figures 1 to 4The bed knife 10 provided in this embodiment has a first end 101 and a second end 102 opposite to each other. The knife groove 11 on the surface of the bed knife 10 is for the blade 221 of the cutting component 22 to slide in and out. In this embodiment, the number of the knife grooves 11 is but not limited to seven. The seven knife grooves 11 are divided into a first left groove 11a, a second left groove 11b, a third left groove 11c, a middle groove 11d, a first right groove 11e, a second right groove 11f, and a third right groove 11g, wherein the middle groove 11d corresponds to the middle cutting component 22c. The first left groove 11a, the second left groove 11b, and the third left groove 11c are arranged in sequence from the first end 101 to the middle groove 11d and correspond to the left cutting component 22a respectively. The first right groove 11e, the second right groove 11f, and the third right groove 11g are arranged in sequence from the second end 102 to the middle groove 11d and correspond to the right cutting component 22b respectively. It can be understood that, according to production needs, when adjusting the position of the cutter component 22, the position of the middle cutter component 22c basically does not need to be adjusted, and only the left cutter component 22a and the right cutter component 22b need to be adjusted. The left cutter component 22a is adjusted to a preset position so that after it is lowered, the blade 221 can be moved into any one of the first left groove 11a, the second left groove 11b, and the third left groove 11c. Similarly, the right cutter component 22b is adjusted to a preset position so that after it is lowered, the blade 221 can be moved into any one of the first right groove 11e, the second right groove 11f, and the third right groove 11g.

[0035] See also Figures 1 to 4 In the present embodiment, a positioning washer 30 is provided in each of the knife grooves 11. The positioning washer 30 has a positioning end surface 30a for contacting the cutting blade component 22. In this embodiment, the positioning washer 30 is detachably mounted in the knife groove 11 of the bed knife 10. The positioning washer 30 has opposing positioning end surfaces 30a and a contact end surface 30b. The contact end surface 30b abuts against the groove wall of the knife groove 11. The thickness of the positioning washer 30 is substantially the same as the groove depth of the knife groove 11, and the width is slightly smaller than the groove width of the knife groove 11. In this way, when cutting the film tape 300, the blade 221 can slide in and out of the space formed by the positioning end surface 30a of the positioning washer 30 and the groove wall of the knife groove 11. In this way, the positioning washer 30 is used to abut against the blade 221, and precise cutting can be achieved by the positioning end surface 30a of the positioning washer 30. In addition, the wear of the blade 221 on the bottom knife 10 can be avoided. After the positioning washer 30 is worn, a new positioning washer 30 can be replaced, thereby reducing costs.

[0036] See also Figures 1 to 4In this embodiment, the positioning washer 30 in the middle groove 11d is abutted against the groove wall of the middle groove 11d near the second end 102, and the positioning washer 30 in the middle groove 11d is abutted against the groove wall of the middle groove 11d near the second end 102. The distance between the positioning end face 30a of the positioning washer 30 in the middle groove 11d and the first left groove 11a is equal to the distance between the positioning end face 30a of the positioning washer 30 in the middle groove 11d and the first right groove 11e. The distance between the positioning end face 30a of the positioning washer 30 in the middle groove 11d and the second left groove 11b is equal to the distance between the positioning end face 30a of the positioning washer 30 in the middle groove 11d and the second right groove 11f. The distance between the positioning end face 30a of the positioning washer 30 in the middle groove 11d and the third left groove 11c is equal to the distance between the positioning end face 30a of the positioning washer 30 in the middle groove 11d and the third right groove 11g.

[0037] Specifically, the fitting end surface 30b of the positioning washer 30 in the first left groove 11a, the fitting end surface 30b of the positioning washer 30 in the second left groove 11b, and the fitting end surface 30b of the positioning washer 30 in the third left groove 11c are all against the groove wall on one side of the knife groove 11 near the second end 102, that is, the positioning washers 30 in the first left groove 11a, the second left groove 11b, the third left groove 11c and the middle groove 11d are all against the groove wall on the second end 102 in the knife groove 11. the fitting end face 30b of the positioning washer 30 in the first right groove 11e, the fitting end face 30b of the positioning washer 30 in the second right groove 11f, and the fitting end face 30b of the positioning washer 30 in the third right groove 11g all abut against the groove wall on one side of the knife groove 11 close to the first end 101, that is, the positioning washers 30 in the first right groove 11e, the second right groove 11f and the third right groove 11g all abut against the groove wall in the knife groove 11 close to the first end 101. It should be noted that the spacing between the positioning end face 30a of the positioning washer 30 in the middle groove 11d and the positioning end face 30a of the positioning washer 30 in the first left groove 11a, and the spacing between the positioning end face 30a of the positioning washer 30 in the middle groove 11d and the positioning end face 30a of the positioning washer 30 in the first right groove 11e are all the first width dimension, and the spacing between the positioning end face 30a of the positioning washer 30 in the middle groove 11d and the positioning end face 30a of the positioning washer 30 in the second left groove 11b, and the spacing between the positioning end face 30a of the positioning washer 30 in the middle groove 11d and the positioning end face 30a of the positioning washer 30 in the second right groove 11f are all the first width dimension. The spacing between the positioning end faces 30a is the second width dimension which is smaller than the first width dimension. The spacing between the positioning end face 30a of the positioning washer 30 in the middle groove 11d and the positioning end face 30a of the positioning washer 30 in the third left groove 11c, as well as the spacing between the positioning end face 30a of the positioning washer 30 in the middle groove 11d and the positioning end face 30a of the positioning washer 30 in the third right groove 11g are all the third width dimension which is smaller than the second width dimension. In this way, the first width dimension, the second width dimension and the third width dimension can be defined by the seven knife grooves 11, thereby obtaining a membrane tape 300 with precise width dimensions.

[0038] See also Figures 1 to 4 The film strip slitting mechanism 100 provided in this embodiment further includes a drive assembly 40 for driving the bed knife 10 to rotate about its axis. The bed knife 10 is rotatably supported on a bed knife 10 seat and connected to the drive assembly 40. In this embodiment, the drive assembly 40 is, but is not limited to, a servo motor assembly, which drives the bed knife 10 to rotate during shearing. It should be noted that the drive assembly 40 ensures that the rotation speed of the bed knife 10 is the same as the unwinding and rewinding speed of the film strip 300, thereby ensuring synchronization of the overall speed of the film strip 300.

[0039] from Figure 1It can be seen that the cutting blade holder 21 provided in this embodiment includes a guide rail 211, and the cutter component 22 includes a mounting portion 222 connected to the guide rail 211. A dovetail groove is provided on the mounting portion 222. In this way, the dovetail groove-type guide rail 211 structure can ensure its stability.

[0040] See also Figure 3 and Figure 4 The film strip slitting mechanism 100 provided in this embodiment also includes a dustproof box 50, and the cutting component 20 is installed in the dustproof box 50. In this way, the cutting component 20 arranged in the dustproof box 50 can be protected, so that the cutting component 20 has a longer service life.

[0041] from Figure 3 It can be seen that the dustproof box 50 provided in this embodiment includes a box body 51 and a box door 52. The box door 52 is installed on the box body 51 through a hinge. In this way, by opening the box door 52, the position of the cutter component 22 in the box body 51 can be adjusted, and the box door 52 can be closed after adjustment.

[0042] See also Figure 5 The casting machine 200 provided in this embodiment includes the above-mentioned film strip slitting mechanism 100, so that multiple rolls of film can be prepared at the same time, thereby improving production efficiency.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements or improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A film strip slitting mechanism, characterized in that: The cutting assembly comprises a cylindrical bottom knife for supporting a film strip and a cutting assembly arranged above the bottom knife; the cutting assembly comprises a cutting knife holder and a plurality of cutting knife parts for abutting against the bottom knife to cut the film strip, the plurality of cutting knife parts are movably arranged on the cutting knife holder along the axial direction of the bottom knife, and the plurality of cutting knife parts are arranged side by side and at intervals; the plurality of cutting knife parts are divided into a left cutting knife part, a right cutting knife part and at least one middle cutting knife part located between the left cutting knife part and the right cutting knife part; the surface of the bottom knife forms a plurality of knife grooves for the cutting knife parts to slide in and out, the plurality of knife grooves are arranged at intervals along the axial direction of the bottom knife, and each of the knife grooves extends along the entire circumference of the bottom knife.

2. The film strip slitting mechanism according to claim 1, characterized in that: There are three cutter components, which are divided into a left cutter component, a right cutter component, and a middle cutter component located between the left cutter component and the right cutter component; The delivered bottom knife has a first end and a second end relative to each other; the number of the knife grooves is seven, and the seven knife grooves are divided into a first left groove, a second left groove, a third left groove, a middle groove, a first right groove, a second right groove, and a third right groove, wherein the middle groove corresponds to the middle cutting knife component, the first left groove, the second left groove, and the third left groove are arranged in sequence from the first end to the middle groove and correspond to the left cutting knife components respectively, and the first right groove, the second right groove, and the third right groove are arranged in sequence from the second end to the middle groove and correspond to the right cutting knife components respectively.

3. The film strip slitting mechanism according to claim 2, characterized in that: A positioning washer is provided in each of the knife grooves, and the positioning washer has a positioning end surface for contacting the cutter component.

4. The film strip slitting mechanism according to claim 3, characterized in that: The positioning washer in the middle groove is abutted against the groove wall of the middle groove near the second end. The distance between the positioning end face of the positioning washer in the middle groove and the first left groove is equal to the distance between the positioning end face of the positioning washer in the middle groove and the first right groove. The distance between the positioning end face of the positioning washer in the middle groove and the second left groove is equal to the distance between the positioning end face of the positioning washer in the middle groove and the second right groove. The distance between the positioning end face of the positioning washer in the middle groove and the third left groove is equal to the distance between the positioning end face of the positioning washer in the middle groove and the third right groove.

5. The film strip slitting mechanism according to any one of claims 1 to 4, characterized in that: The utility model further comprises a driving assembly for driving the bed knife to rotate around the axis of the bed knife. The bed knife is rotatably supported on the bed knife seat and connected to the driving assembly.

6. The film strip slitting mechanism according to any one of claims 1 to 4, characterized in that: The cutting blade holder includes a guide rail, and the cutting blade component includes a mounting portion connected to the guide rail, wherein a dovetail groove is provided on the mounting portion.

7. The film strip slitting mechanism according to any one of claims 1 to 4, characterized in that: The cutter component is a pressure-cutting pneumatic slitting knife or a shearing pneumatic slitting knife.

8. The film strip slitting mechanism according to any one of claims 1 to 4, characterized in that: A dustproof box is also included, and the cutting assembly is installed in the dustproof box.

9. The film strip slitting mechanism according to claim 8, characterized in that: The dustproof box includes a box body and a box door, and the box door is installed on the box body through a hinge.

10. A tape casting machine, characterized in that: It comprises the film strip slitting mechanism as described in any one of claims 1 to 9.

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