A film slitting machine

Abstract

This invention discloses a film slitting machine, relating to the field of film processing technology, comprising: an unwinding device; a slitting device; a first offset detection component for detecting the offset of a portion of the strip film; a first rotating drum for winding a portion of the strip film; a first linear drive component for driving the first rotating drum to move in a forward-backward direction; a first slip shaft for winding the strip film; a second offset detection component for detecting the offset of another portion of the strip film; a second rotating drum for winding another portion of the strip film; a second linear drive component for driving the second rotating drum to move in a forward-backward direction; and a second slip shaft for winding the other portion of the strip film. This film slitting machine can control the offset of each strip film, which is beneficial for improving the yield of strip films.

Description

Technical Field

[0001] The invention relates to the technical field of film processing, in particular to a film slitting machine. Background Art

[0002] The film slitting machine is a crucial equipment in the coating industry. It can accurately divide large rolls of film as needed to customize the size of the film, improve the subsequent production efficiency of the film and optimize the utilization rate of the film material. The film slitting machine plays a key role in the fields of packaging, printing, electronics, etc., and is one of the important tools that are indispensable for modern industrial production. In the prior art, the film slitting machine usually includes multiple blades, and the multiple blades are used to cut the entire film into multiple strips of film. Since the degree of wear of the multiple blades is different, the forces exerted by the multiple blades on the multiple strips of film are also different, which makes the strips of film easily deviate due to uneven tension, and then causes the strips of film to collide with each other. When the offset of the strip film exceeds the qualified offset range, the colliding strip films will cause the size of the strip film after slitting to not meet the specification requirements, reducing the yield rate of the strip film after slitting. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a film slitting machine, which can prevent strip films from colliding with each other, and is conducive to improving the yield rate of the slit strip films.

[0004] A film slitting machine according to an embodiment of the present invention comprises:

[0005] An unwinding device, the unwinding device is used to unwind the entire film from left to right;

[0006] A frame, the frame being arranged on the right side of the unwinding device;

[0007] A slitting device, the slitting device is arranged on the frame, and the slitting device is used to slitting the whole film so that the whole film is slid into a plurality of strip films;

[0008] A plurality of first offset detection components, each of which is arranged on the right side of the slitting device, and each of which is distributed on the frame along the front-rear direction, each of which is provided with a qualified offset range, and each of which is used to detect the offset of a portion of the strip film;

[0009] A plurality of first traction assemblies, the plurality of the first traction assemblies are distributed on the frame along the front-rear direction, the first traction assembly comprises a first rotating drum and a first mounting drum, the first rotating drum is rotatably sleeved on the first mounting drum, and the plurality of the first rotating drums are respectively used for winding a part of the strip-shaped film;

[0010] A plurality of first linear drive components, each of which is disposed in each of the first mounting cylinders, each of which is electrically connected to each of the first offset detection components, and each of which is used to drive each of the first rotating cylinders to move in a forward and backward direction, so that the offsets of the portions of the strip-shaped films respectively wound around the first rotating cylinders can fall within the qualified offset range;

[0011] A first slip shaft, which is arranged on the right side of the plurality of first traction assemblies, and the front and rear ends of the first slip shaft are rotatably connected to the frame, and the first slip shaft is used to roll up a portion of the strip film;

[0012] A plurality of second offset detection components, each of which is arranged on the right side of the slitting device, and each of which is distributed on the frame along the front-rear direction, each of which is provided with the qualified offset range, and each of which is used to detect the offset of another part of the strip film;

[0013] A plurality of second traction assemblies, the plurality of the second traction assemblies are distributed on the frame along the front-rear direction, the second traction assemblies include a second rotating drum and a second mounting drum, the second rotating drum is rotatably sleeved on the second mounting drum, and the plurality of the second rotating drums are respectively used for winding another part of the strip-shaped film;

[0014] A plurality of second linear drive components, each of which is disposed in each of the second mounting cylinders, each of which is electrically connected to each of the second offset detection components, and each of which is used to drive each of the second rotating cylinders to move in a forward and backward direction, so that the offset of another part of the strip-shaped film respectively wound around the second rotating cylinders can fall within the qualified offset range;

[0015] The second slip shaft is arranged on the right side of the plurality of the second traction components, the second slip shaft is arranged below the first slip shaft, the front and rear ends of the second slip shaft are rotatably connected to the frame, and the second slip shaft is used to roll up another part of the strip film.

[0016] At least the following beneficial effects are achieved:

[0017] When it is necessary to slit the rolled film, the operator can place the rolled film to be slit on the unwinding device. The unwinding device unwinds the whole film from left to right. After the whole film moves to the slitting device, the slitting device can slit the whole film into multiple strip films. Part of the strip film and the other part of the film continue to move from left to right. Part of the strip film is wound on multiple first rotating drums, and the other part of the strip film is wound on multiple second rotating drums. The first slip shaft winds up the part of the strip film, and the second slip shaft winds up the other part of the strip film, so as to complete the separation and winding of multiple strip films. The plurality of first offset detection components can respectively detect the offset of some strip films in real time. When any one or all of the strip films in the partial strip films are offset and the offset exceeds the qualified offset range, the plurality of first linear drive components respectively drive the plurality of first rotating drums to move in the front-to-back direction, so that the plurality of first rotating drums can respectively drive the partial strip films to move forward and backward, thereby making the partial strip films all fall within the qualified offset range. The plurality of second offset detection components can respectively detect the offset of another part of the strip films in real time. When any one or all of the strip films in the other part of the strip films are offset and the offset exceeds the qualified offset range, the plurality of second linear drive components respectively drive the plurality of second rotating drums to move in the front-to-back direction, so that the plurality of second rotating drums can respectively drive the other part of the strip films to move forward and backward, thereby making the other part of the strip films all fall within the qualified offset range. The film slitting machine can control the offset of each strip of film after slitting, so that the offset of each strip of film after slitting during the slitting process can fall within the qualified offset range, effectively avoiding collision between multiple strips of film, and then making the size of each strip of film after slitting meet the specification requirements, which is conducive to improving the yield rate of the strip films after slitting.

[0018] The film slitting machine according to the embodiment of the present invention further includes a first mounting plate, both front and rear ends of the first mounting plate are connected to the frame, and the plurality of first traction assemblies can be slidably connected to the first mounting plate along the front and rear directions.

[0019] According to an embodiment of the present invention, the film slitting machine also includes a first slide rail and a first slider. The front and rear ends of the first mounting plate are detachably connected to the frame. The first traction assembly also includes a first mounting seat. The first mounting seat is connected to the first mounting tube. The first slide rail is parallel to the front and rear directions and is arranged on the first mounting plate. The first slider is connected to the first mounting seat. The first slider is slidably connected to the first slide rail.

[0020] According to the film slitting machine of the embodiment of the present invention, the first traction assembly also includes a first adapter cylinder, the first adapter cylinder is sleeved on the first mounting cylinder, the first rotating cylinder is rotatably sleeved on the first adapter cylinder, and the first mounting cylinder is provided with a first guide hole parallel to the front-to-back direction, the first linear drive assembly includes a first motor, a first screw, a first nut and a first connecting rod, the first screw is parallel to the front-to-back direction, one end of the first screw is rotatably connected to the first mounting cylinder, the other end of the first screw is connected to the output end of the first motor, the first nut is threadedly connected to the first screw, the first connecting rod is penetrated into the first guide hole, the upper end of the first connecting rod is connected to the first adapter cylinder, and the lower end of the first connecting rod is connected to the first nut.

[0021] According to an embodiment of the present invention, the film slitting machine further includes a first mounting rod parallel to the front-to-back direction, the front and rear ends of the first mounting rod are connected to the frame, and the plurality of first offset detection assemblies can be slidably connected to the first mounting rod along the front-to-back direction.

[0022] According to the film slitting machine of the embodiment of the present invention, the front and rear ends of the first mounting rod are detachably connected to the frame, the first offset detection component includes a first connecting member, a first mounting block and a first distance sensor, one end of the first connecting member can be slidably mounted on the first mounting rod along the front and rear directions, the first mounting block can be rotatably connected to the other end of the first connecting member, a first mounting opening is provided on the first mounting block, the first distance sensor is arranged on the inner wall of the first mounting opening, and the area in the first mounting opening corresponding to the first distance sensor is used for one portion of the strip film to pass through.

[0023] According to the film slitting machine of the embodiment of the present invention, the slitting device includes a knife shaft, a knife holder, a plurality of blades and a plurality of round-bottom knives, the knife shaft is parallel to the front-to-back direction, the front and rear ends of the knife shaft are rotatably connected to the frame, the plurality of round-bottom knives are linearly arrayed on the knife shaft along the front-to-back direction, the knife holder is arranged on the frame, the knife holder is arranged above the knife shaft, the plurality of blades are linearly arrayed on the knife holder along the front-to-back direction, the plurality of blades are arranged in a one-to-one correspondence with the plurality of round-bottom knives, and the gaps between the plurality of blades and the plurality of round-bottom knives are used for the entire film to pass through, so that the plurality of blades and the plurality of round-bottom knives can cut the entire film into a plurality of strip-shaped films.

[0024] The film slitting machine according to an embodiment of the present invention further comprises a heating device, which is arranged on the frame and is used to heat the portion of the entire film between the plurality of blades and the plurality of round bottom knives.

[0025] According to the film slitting machine of the embodiment of the present invention, the heating device is an infrared heater.

[0026] According to the film slitting machine of an embodiment of the present invention, the unwinding device includes an expansion and contraction roller and a rotary drive mechanism, the expansion and contraction roller is used for the whole rolled film to be sheathed, and the rotary drive mechanism is used to drive the expansion and contraction roller to rotate so that the whole rolled film can be unrolled from left to right. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 It is a structural schematic diagram of a film slitting machine according to an embodiment of the present invention;

[0029] Figure 2 It is a partial structural schematic diagram of a film slitting machine according to an embodiment of the present invention;

[0030] Figure 3 It is a schematic diagram of the structure of a whole film, a part of a strip film and another part of a strip film in an embodiment of the present invention;

[0031] Figure 4 It is a structural schematic diagram of a first traction component traction of a part of a strip film and a second traction component traction of another part of a strip film in a film slitting machine according to an embodiment of the present invention;

[0032] Figure 5 for Figure 4 A partial enlarged schematic diagram of point C in the middle;

[0033] Figure 6 It is a side view structural schematic diagram of a first traction component traction part of a strip film and a second traction component traction another part of a strip film in a film slitting machine according to an embodiment of the present invention;

[0034] Figure 7 It is a structural schematic diagram of a first traction assembly in a film slitting machine according to an embodiment of the present invention;

[0035] Figure 8 It is a schematic cross-sectional structural diagram of a first traction assembly in a film slitting machine according to an embodiment of the present invention;

[0036] Fig. 9 It is a structural schematic diagram of a first mounting block in a film slitting machine according to an embodiment of the present invention;

[0037] Reference numerals:

[0038] Frame 100; first differential slip shaft 110; second differential slip shaft 120; first mounting plate 130; first slide rail 131; first slider 132; second mounting plate 140; first mounting rod 150; second mounting rod 160;

[0039] Slitting device 200; knife shaft 210; round bottom knife 211; knife holder 220; blade 221;

[0040] First offset detection assembly 300; first connecting member 310; first mounting block 320; first mounting opening 321; first distance sensor 330;

[0041] A second offset detection component 400;

[0042] The first traction assembly 500; the first linear drive assembly 510; the first motor 511; the first nut 512; the first screw rod 513; the first connecting rod 514; the first mounting cylinder 520; the first guide hole 521; the first adapter cylinder 530; the first rotating cylinder 540; the first mounting seat 550;

[0043] A second traction assembly 600; a second rotating drum 610;

[0044] Heating device 700;

[0045] Unwinding device 800; expansion and contraction roller 810. DETAILED DESCRIPTION

[0046] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0047] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0048] In the description of the present invention, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0049] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0050] refer to Figures 1 to 4 According to an embodiment of the present invention, a film slitting machine comprises:

[0051] The unwinding device 800 is used to unwind the entire film from left to right;

[0052] The frame 100 is arranged on the right side of the unwinding device 800;

[0053] A slitting device 200 is disposed on the frame 100 and is used to slitting a whole film so that the whole film is slid into a plurality of strip films;

[0054] A plurality of first offset detection components 300, each of which is disposed on the right side of the slitting device 200, and each of which is distributed on the frame 100 along the front-rear direction, each of which is provided with a qualified offset range, and each of which is used to detect the offset of a portion of the strip film;

[0055] A plurality of first traction assemblies 500, the plurality of first traction assemblies 500 are distributed on the frame 100 along the front-rear direction, the first traction assemblies 500 include a first rotating drum 540 and a first mounting drum 520, the first rotating drum 540 is rotatably sleeved on the first mounting drum 520, and the plurality of first rotating drums 540 are respectively used for winding a portion of the strip film;

[0056] A plurality of first linear drive components 510, each of which is disposed in a plurality of first mounting cylinders 520, each of which is electrically connected to a plurality of first offset detection components 300, and each of which is used to drive a plurality of first rotating cylinders 540 to move in a front-to-back direction, so that the offsets of the portions of the strip-shaped films respectively wound around the plurality of first rotating cylinders 540 can all fall within a qualified offset range;

[0057] A first slip shaft 110, which is disposed on the right side of the plurality of first traction assemblies 500, and whose front and rear ends are rotatably connected to the frame 100. The first slip shaft 110 is used to roll up a portion of the strip film;

[0058] A plurality of second offset detection components 400, each of which is disposed on the right side of the slitting device 200, and each of which is distributed on the frame 100 along the front-rear direction, each of which is provided with a qualified offset range, and each of which is used to detect the offset of another portion of the strip film;

[0059] A plurality of second traction assemblies 600, the plurality of second traction assemblies 600 are distributed on the frame 100 along the front-rear direction, the second traction assemblies 600 include a second rotating drum 610 and a second mounting drum, the second rotating drum 610 is rotatably sleeved on the second mounting drum, and the plurality of second rotating drums 610 are respectively used for winding another portion of the strip film;

[0060] A plurality of second linear drive components, each of which is disposed in a plurality of second mounting cylinders, each of which is electrically connected to a plurality of second offset detection components 400, and each of which is used to drive the plurality of second rotating cylinders 610 to move in the front-rear direction, so that the offset of another portion of the strip-shaped film respectively wound around the plurality of second rotating cylinders 610 can fall within a qualified offset range;

[0061] The second slip shaft 120 is arranged on the right side of the plurality of second traction assemblies 600. The second slip shaft 120 is arranged below the first slip shaft 110. Both front and rear ends of the second slip shaft 120 are rotatably connected to the frame 100. The second slip shaft 120 is used to roll up another part of the strip film.

[0062] It is understandable that when the rolled film needs to be slit, the operator can place the film to be slit on the unwinding device 800. The unwinding device 800 unwinds the entire film from left to right. After the entire film moves to the slitting device 200, the slitting device 200 can slit the entire film into multiple strip films. Part of the strip film and another part of the film continue to move from left to right, and part of the strip film is respectively wound on multiple first rotating drums 540, and another part of the strip film is respectively wound on multiple second rotating drums 610. The first slip shaft 110 winds up the part of the strip film, and the second slip shaft 120 winds up the other part of the strip film, so as to complete the separation and winding of multiple strip films.

[0063] The plurality of first offset detection components 300 can respectively detect the offset of some strip films in real time. When any one or all of the strip films in the partial strip films are offset and the offset exceeds the qualified offset range, the plurality of first linear drive components 510 respectively drive the corresponding plurality of first rotating drums 540 to move in the front-to-back direction, so that the plurality of first rotating drums 540 can respectively drive the partial strip films to move forward and backward, thereby making the partial strip films all fall into the qualified offset range. The plurality of second offset detection components 400 can respectively detect the offset of another portion of the strip films in real time. When any one or all of the strip films in the other portion of the strip films are offset and the offset exceeds the qualified offset range, the plurality of second linear drive components respectively drive the corresponding plurality of second rotating drums 610 to move in the front-to-back direction, so that the plurality of second rotating drums 610 can respectively drive the other portion of the strip films to move forward and backward, thereby making the other portion of the strip films all fall into the qualified offset range. The film slitting machine can control the offset of each strip of film after slitting, so that the offset of each strip of film after slitting during the slitting process can fall within the qualified offset range, effectively avoiding collision between multiple strips of film, and then making the size of each strip of film after slitting meet the specification requirements, which is conducive to improving the yield rate of the strip films after slitting.

[0064] It should be explained that the reference Figure 3 and Figure 4 In the embodiment of the present invention, after the slitting device 200 slits the whole film, the whole film is slit into a part of the strip film and another part of the strip film, and the part of the strip film and the other part of the strip film are arranged alternately, such as A in the figure is a part of the strip film, and B in the figure is another part of the strip film, and the first slip shaft 110 and the second slip shaft 120 respectively roll up the strip film A (i.e., the part of the strip film) and the strip film B (i.e., the other part of the strip film), so that the first slip shaft 110 and the second slip shaft 120 can complete the separation and rolling of the strip film A and the strip film B after the slitting. For the convenience of explanation, in the embodiment of the present invention, the whole film is slit into multiple strip films A and multiple strip films B, and the strip film A refers to the part of the strip film, and the strip film B refers to the other part of the strip film. A plurality of strip films A are respectively wound on a plurality of first rotating drums 540, and the strip films A and the first rotating drum 540 are pressed against each other. When the first rotating drum 540 moves forward and backward, the first rotating drum 540 can drive the strip films A to move forward and backward under the action of friction force; a plurality of strip films B are respectively wound on a plurality of second rotating drums 610, and the strip films B and the second rotating drum 610 are pressed against each other. When the second rotating drum 610 moves forward and backward, the second rotating drum 610 can drive the strip films B to move forward and backward under the action of friction force.

[0065] On the other hand, the film slitting machine can control the offset of each strip film after slitting, so that the offset of each strip film during the slitting process can fall within the qualified offset range, avoiding collision between multiple strip films A and multiple strip films B, which is beneficial to improving the yield rate of the strip films after slitting.

[0066] In the embodiment of the present invention, reference Figure 3 , Figure 4 and Figure 6 The first rotating drum 540 and the second rotating drum 610 have the same length in the front-to-back direction, the strip film A and the strip film B have the same width, the distance between two adjacent first rotating drums 540 is equal to the width of the strip film A, the distance between two adjacent second rotating drums 610 is equal to the width of the strip film B, and the first rotating drum 540 and the second rotating drum 610 are arranged alternately.

[0067] It needs to be explained that the slip shaft is a component used for winding film. The function of the slip shaft is to allow a certain degree of relative movement between the winding core of the slip shaft and the film during the winding process, thereby ensuring that the film can be smoothly and tightly wound without generating excessive tension during the winding process.

[0068] refer to Figure 4 The film slitting machine further includes a first mounting plate 130, the front and rear ends of which are connected to the frame 100, and the plurality of first traction assemblies 500 can be slidably connected to the first mounting plate 130 along the front-back direction. It can be understood that the plurality of first traction assemblies 500 can be slidably connected to the first mounting plate 130 along the front-back direction, so that the first rotating drum 540 in the plurality of first traction assemblies 500 can adjust the relative position with the whole film according to the slitting condition of the whole film, so that the plurality of first rotating drums 540 can adapt to a plurality of strip films A, thereby improving the applicability of the first traction assemblies 500.

[0069] refer to Figure 7The film slitting machine further includes a first slide rail 131 and a first slider 132. The front and rear ends of the first mounting plate 130 are detachably connected to the frame 100. The first traction assembly 500 further includes a first mounting seat 550. The first mounting seat 550 is connected to the first mounting cylinder 520. The first slide rail 131 is parallel to the front and rear directions and is arranged on the first mounting plate 130. The first slider 132 is connected to the first mounting seat 550. The first slider 132 is slidably connected to the first slide rail 131. It can be understood that the front and rear ends of the first mounting plate 130 are detachably connected to the frame 100. The first mounting seat 550 is slidably connected to the first slide rail 131 through the first slider 132. The operator can remove the first mounting plate 130 from the frame 100 and remove the first mounting seat 550 from the first slide rail 131, so that the operator can increase or decrease the number of the first traction assembly 500 according to the slitting conditions of the entire film to improve the applicability of the film slitting machine.

[0070] refer to Figure 7 and Figure 8 The first traction component 500 also includes a first adapter cylinder 530, which is sleeved on the first mounting cylinder 520, and the first rotating cylinder 540 is rotatably sleeved on the first adapter cylinder 530. The first mounting cylinder 520 is provided with a first guide hole 521 parallel to the front-to-back direction. The first linear drive component 510 includes a first motor 511, a first screw rod 513, a first nut 512 and a first connecting rod 514. The first screw rod 513 is parallel to the front-to-back direction. One end of the first screw rod 513 is rotatably connected to the first mounting cylinder 520, and the other end of the first screw rod 513 is connected to the output end of the first motor 511. The first nut 512 is threadedly connected to the first screw rod 513. The first connecting rod 514 is penetrated in the first guide hole 521. The upper end of the first connecting rod 514 is connected to the first adapter cylinder 530, and the lower end of the first connecting rod 514 is connected to the first nut 512.

[0071] It can be understood that the first motor 511 drives the first screw 513 to rotate, and the first screw 513 drives the first nut 512 and the first connecting rod 514 to move in the front-to-back direction, so that the first connecting rod 514 can drive the first adapter tube 530 to move in the front-to-back direction, and then the first adapter tube 530 drives the first rotating tube 540 to move in the front-to-back direction. As an embodiment of the present invention, the first rotating tube 540 is rotatably mounted on the first adapter tube 530 through the first bearing.

[0072] In the embodiment of the present invention, the film slitting machine further includes a second mounting plate 140, the front and rear ends of the second mounting plate 140 are detachably connected to the frame 100, the second mounting plate 140 is provided with a second slide rail parallel to the front and rear directions, and the second traction assembly 600 is slidably connected to the second slide rail through a second slider. The second traction assembly 600 has the same structure as the first traction assembly 500, and the first linear drive assembly 510 has the same structure as the second linear drive assembly, except that a plurality of second traction assemblies 600 are used to traction a plurality of strip films B, and the beneficial effects brought by the second traction assembly 600 and the first traction assembly 500 are also the same, which will not be further discussed here.

[0073] refer to Figure 4 The film slitting machine further includes a first mounting rod 150 parallel to the front-to-back direction, and both front and rear ends of the first mounting rod 150 are connected to the frame 100, and multiple first offset detection assemblies 300 can be slidably connected to the first mounting rod 150 along the front-to-back direction. It can be understood that multiple first offset detection assemblies 300 can be slidably connected to the first mounting rod 150 along the front-to-back direction, so that the first offset detection assembly 300 can adjust the position of the first offset detection assembly 300 on the first mounting rod 150 according to the slitting situation of the entire film, so that the multiple first offset detection assemblies 300 can respectively and accurately detect the offset of multiple strip films, which is conducive to improving the applicability of the first offset detection assembly 300.

[0074] refer to Figure 4 , Figure 5 and Fig. 9 The front and rear ends of the first mounting rod 150 can be detachably connected to the frame 100. The first offset detection assembly 300 includes a first connecting member 310, a first mounting block 320 and a first distance sensor 330. One end of the first connecting member 310 can be slidably mounted on the first mounting rod 150 along the front-to-back direction. The first mounting block 320 can be rotatably connected to the other end of the first connecting member 310. A first mounting opening 321 is provided on the first mounting block 320. The first distance sensor 330 is arranged on the inner wall of the first mounting opening 321. The area in the first mounting opening 321 corresponding to the first distance sensor 330 is used for one of the partial strip films to pass through. It can be understood that both the front and rear ends of the first mounting rod 150 can be detachably connected to the frame 100. The operator can remove the first mounting rod 150 from the frame 100 and remove the first connecting member 310 from the first mounting rod 150, so that the operator can increase or decrease the number of offset detection components according to the slitting conditions of the entire film to improve the applicability of the film slitting machine.

[0075] It can be understood that a single strip film A is inserted into the first mounting opening 321 on the first mounting block 320, and the first distance sensor 330 is used to detect the distance from the first distance sensor 330 to the side of the single strip film A. When the distance value detected by the first distance sensor 330 falls within the qualified offset range, it means that the position of the currently detected strip film A is qualified. When the strip film A deviates in the front-to-back direction, and the distance value detected by the first distance sensor 330 falls outside the qualified offset range, it means that the offset distance of the strip film A is too large. At this time, the first rotating drum 540 will drive the strip film A to move in the front-to-back direction, so that the distance value detected by the first distance sensor 330 can fall within the qualified offset range. The method of using a distance sensor to detect the film offset is a relatively common method, which will not be further described here.

[0076] In the embodiment of the present invention, the film slitting machine further includes a second mounting rod 160, the front and rear ends of the second mounting rod 160 are detachably connected to the frame 100, and the plurality of second offset detection assemblies 400 are slidably connected to the second mounting rod 160 along the front and rear directions. The second offset detection assembly 400 has the same structure as the first offset detection assembly 300, except that the second offset detection assembly 400 is used to detect the offset of the strip film B, and the second offset detection assembly 400 and the first offset detection assembly 300 have the same beneficial effects, which will not be further discussed here.

[0077] refer to Figure 1 and Figure 2 The slitting device 200 includes a knife shaft 210, a knife holder 220, a plurality of blades 221 and a plurality of round-bottom knives 211. The knife shaft 210 is parallel to the front-to-back direction. Both the front and rear ends of the knife shaft 210 can be rotatably connected to the frame 100. The plurality of round-bottom knives 211 are linearly arrayed on the knife shaft 210 along the front-to-back direction. The knife holder 220 is disposed on the frame 100. The knife holder 220 is disposed above the knife shaft 210. The plurality of blades 221 are linearly arrayed on the knife holder 220 along the front-to-back direction. The plurality of blades 221 are arranged one-to-one with the plurality of round-bottom knives 211. The gaps between the plurality of blades 221 and the plurality of round-bottom knives 211 are used for allowing a whole film to pass through, so that the plurality of blades 221 and the plurality of round-bottom knives 211 can cut the whole film into a plurality of strip-shaped films. It can be understood that the gaps between the multiple blades 221 and the multiple round-bottom knives 211 are used to allow the entire film to pass through, and the knife shaft 210 drives the multiple round-bottom knives 211 to rotate, so that the multiple round-bottom knives 211 and the multiple blades 221 can cut the entire film to obtain multiple strips of film.

[0078] refer to Figure 1 and Figure 2The film slitting machine further includes a heating device 700, which is disposed on the frame 100 and is used to heat a portion of the entire film between the plurality of blades 221 and the plurality of round bottom knives 211. It is understandable that, under the action of the round bottom knife 211 and the blade 221, the entire film will accumulate internal stress during the slitting process, especially near the cutting area of ​​the round bottom knife 211 and the blade 221, the entire film and the plurality of strip films will have uneven tension due to the internal accumulated stress, thereby causing the plurality of strip films to deviate. The heating device 700 can heat a portion of the entire film between the plurality of blades 221 and the plurality of round bottom knives 211, so that the internal stress of the entire film and the plurality of strip films in the area of ​​the round bottom knife 211 and the blade 221 can be released and relaxed, thereby making the tension distribution of the entire film and the plurality of strip films more uniform, thereby facilitating the improvement of the yield rate of the strip films after slitting.

[0079] As an embodiment of the present invention, the heating device 700 is an infrared heater. It is understood that the infrared heater uses the principle of converting electrical energy into infrared radiation heat energy to directly transfer heat energy to the surface of the entire film, so that the entire film and the multiple strip films in the area of ​​the multiple round bottom knives 211 and the multiple blades 221 can be heated evenly.

[0080] refer to Figure 1 The unwinding device 800 includes an expansion and contraction roller 810 and a rotary drive mechanism. The expansion and contraction roller 810 is used for providing a whole rolled film with a sleeve, and the rotary drive mechanism is used to drive the expansion and contraction roller 810 to rotate so that the whole rolled film can be unwound from left to right.

[0081] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0082] Of course, the present invention is not limited to the above-mentioned embodiments, and those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A film slitting machine, It is characterized in that include: An unwinding device, the unwinding device is used to unwind the entire film from left to right; A frame, the frame being arranged on the right side of the unwinding device; A slitting device, the slitting device is arranged on the frame, and the slitting device is used to slitting the whole film so that the whole film is slid into a plurality of strip films; A plurality of first offset detection components, each of which is arranged on the right side of the slitting device, and each of which is distributed on the frame along the front-rear direction, and each of which is used to detect the offset of a portion of the strip film; A plurality of first traction assemblies, the plurality of the first traction assemblies are distributed on the frame along the front-rear direction, the first traction assembly comprises a first rotating drum and a first mounting drum, the first rotating drum is rotatably sleeved on the first mounting drum, and the plurality of the first rotating drums are respectively used for winding a part of the strip-shaped film; A plurality of first linear drive components, each of which is disposed in each of the first mounting cylinders, each of which is electrically connected to each of the first offset detection components, and each of which is used to drive each of the first rotating cylinders to move in a forward and backward direction, so that the offsets of the portions of the strip-shaped films respectively wound around the first rotating cylinders can fall within a qualified offset range; A first slip shaft, which is arranged on the right side of the plurality of first traction assemblies, and the front and rear ends of the first slip shaft are rotatably connected to the frame, and the first slip shaft is used to roll up a portion of the strip film; A plurality of second offset detection components, each of which is arranged on the right side of the slitting device, and each of which is distributed on the frame along the front-rear direction, and each of which is used to detect the offset of another part of the strip film; A plurality of second traction assemblies, the plurality of the second traction assemblies are distributed on the frame along the front-rear direction, the second traction assemblies include a second rotating drum and a second mounting drum, the second rotating drum is rotatably sleeved on the second mounting drum, and the plurality of the second rotating drums are respectively used for winding another part of the strip-shaped film; A plurality of second linear drive components, each of which is disposed in each of the second mounting cylinders, each of which is electrically connected to each of the second offset detection components, and each of which is used to drive each of the second rotating cylinders to move in a forward and backward direction, so that the offset of another portion of the strip-shaped film respectively wound around the second rotating cylinders can fall within a qualified offset range; A second slip shaft, the second slip shaft is arranged on the right side of the plurality of second traction assemblies, the second slip shaft is arranged below the first slip shaft, the front and rear ends of the second slip shaft are rotatably connected to the frame, and the second slip shaft is used to roll up another part of the strip film; A first mounting plate, wherein both front and rear ends of the first mounting plate are connected to the frame, and a plurality of the first traction assemblies can be slidably connected to the first mounting plate along a front-rear direction; A first slide rail and a first slider, the front and rear ends of the first mounting plate are detachably connected to the frame, the first traction assembly further comprises a first mounting seat, the first mounting seat is connected to the first mounting tube, the first slide rail is parallel to the front and rear direction and is arranged on the first mounting plate, the first slider is connected to the first mounting seat, and the first slider is slidably connected to the first slide rail; The first traction assembly also includes a first adapter cylinder, the first adapter cylinder is sleeved on the first mounting cylinder, the first rotating cylinder is rotatably sleeved on the first adapter cylinder, a first guide hole parallel to the front-to-back direction is opened on the first mounting cylinder, the first linear drive assembly includes a first motor, a first screw, a first nut and a first connecting rod, the first screw is parallel to the front-to-back direction, one end of the first screw is rotatably connected to the first mounting cylinder, the other end of the first screw is connected to the output end of the first motor, the first nut is threadedly connected to the first screw, the first connecting rod is inserted into the first guide hole, the upper end of the first connecting rod is connected to the first adapter cylinder, and the lower end of the first connecting rod is connected to the first nut; A first mounting rod parallel to the front-to-back direction, the front and rear ends of the first mounting rod are connected to the frame, and a plurality of the first offset detection components can be slidably connected to the first mounting rod along the front-to-back direction; The front and rear ends of the first mounting rod are detachably connected to the frame, the first offset detection assembly includes a first connecting member, a first mounting block and a first distance sensor, one end of the first connecting member can be slidably mounted on the first mounting rod along the front and rear directions, the first mounting block can be rotatably connected to the other end of the first connecting member, a first mounting opening is provided on the first mounting block, the first distance sensor is arranged on the inner wall of the first mounting opening, and the area in the first mounting opening corresponding to the first distance sensor is used for one of the strip films to pass through.

2. The film slitting machine according to claim 1, Features: The slitting device includes a knife shaft, a knife holder, a plurality of blades and a plurality of round-bottom knives, the knife shaft is parallel to the front-to-back direction, the front and rear ends of the knife shaft are rotatably connected to the frame, the plurality of round-bottom knives are linearly arrayed on the knife shaft along the front-to-back direction, the knife holder is arranged on the frame, the knife holder is arranged above the knife shaft, the plurality of blades are linearly arrayed on the knife holder along the front-to-back direction, the plurality of blades are arranged in a one-to-one correspondence with the plurality of round-bottom knives, and the gaps between the plurality of blades and the plurality of round-bottom knives are used for the entire film to pass through, so that the plurality of blades and the plurality of round-bottom knives can cut the entire film into a plurality of strip-shaped films.

3. The film slitting machine according to claim 2, Features: It also includes a heating device, which is arranged on the frame and is used to heat the portion of the entire film between the plurality of blades and the plurality of round bottom knives.

4. The film slitting machine according to claim 3, Features: The heating device is an infrared heater.

5. The film slitting machine according to claim 1, Features: The unwinding device comprises an expansion and contraction roller and a rotation drive mechanism, wherein the expansion and contraction roller is used for sleeve-mounting the whole rolled film, and the rotation drive mechanism is used for driving the expansion and contraction roller to rotate so as to unwind the whole rolled film.

Images