Background
The metallized film is formed by evaporating a layer of metal film on the surface of the polyester film to replace the metal foil to be used as an electrode, and the volume of the metallized film layer is much smaller than that of the metal foil after winding because the thickness of the metallized film layer is much smaller than that of the metal foil.
In the manufacturing process of the film dielectric capacitor, the widths of small film rolls used for winding the capacitor cores of different specifications are different, and the small film rolls with different widths are small film rolls which are formed by dividing a large film roll into a plurality of equal parts and are suitable for winding the cores by a dividing machine; the working principle of the slitter is that a large film roll arranged on an unreeling arm is cut into a plurality of equal parts of small films by a plurality of cutter groups and is reeled on a reeling arm; cutting small film rolls of different widths requires adjustment of the spacing between the cutter sets,
the more traditional method for adjusting the spacing of the cutter groups is as follows: the cutter is fixed on the cutter mould of fixed specification, and a plurality of moulds that are equipped with the cutter are installed on mould fixed subassembly, and mould fixed subassembly is installed on the guide arm, and the interval of cutting knife group needs to be changed the cutter mould of different specifications or pack the cushion of corresponding specification between the cutter mould if need be adjusted, not only wastes time and energy, influences work efficiency, also is unfavorable for improving product quality.
The cutter adjusting device of the electrodeless adjusting film slitter comprises guide rods fixed on two side walls of the slitter and a plurality of cutter adjusting devices arranged on the guide rods; the cutter adjusting device comprises a sliding block, a sliding block locking screw, a cutter fixing block, a longitudinal adjusting screw and a spring; the sliding block is provided with a round hole in clearance fit with the guide rod and a sliding groove which is positioned on one side of the upper end of the round hole and is vertical to the guide rod and provided with a step, the lower end of the round hole is axially provided with a long groove, the sliding groove is in tight fit with the blade fixing block, and the small film roll with any width can be cut in the application.
However, for the requirement of cutting a plurality of films on a sheet of metal film at a time, the cutter adjusting device applied in the prior art cannot meet the requirement.
Disclosure of Invention
The present invention addresses the problems with the prior art described above by providing a film slitter with adjustable width.
The invention solves the technical problems by the following technical means:
the utility model provides a width adjustable film cutting machine, includes the frame and sets up the knife rest in the frame, the knife rest includes:
the distance adjuster comprises a sliding rod and a plurality of sliding blocks which are arranged on the sliding rod in a sliding manner, and one of the sliding blocks is arranged at the end part of the sliding rod and is fixed;
the connector comprises two swing rods, one ends of the two swing rods are rotationally connected, the other ends of the two swing rods are respectively and movably connected to the adjacent sliding blocks, and the rotational connection points of the two swing rods are mounting points of the cutters;
and the retainer is arranged between the adjacent connectors and comprises two connecting rods, a control rod and a guide sleeve, one ends of the two connecting rods are rotationally connected, the other ends of the two connecting rods are respectively rotationally connected to the swinging rods, the guide sleeve is arranged at a rotational connecting point of the two connecting rods, the control rod penetrates through the guide sleeve in a sliding mode, and the control rod simultaneously bisects an angle formed by the two connecting rods and an angle formed by the two swinging rods.
Further, the lifting unlocking mechanism comprises a connecting sheet, a rotating shaft and a pressing block, wherein the lifting unlocking mechanism is arranged in the sliding block, the sliding block and the swinging rod are movably connected through the connecting sheet, the rotating shaft penetrates through the sliding block and is fixedly connected with the connecting sheet, the pressing block is fixed in the middle of the rotating shaft, a cavity for accommodating the pressing block to rotate is formed in the sliding block, and when the rotating shaft rotates to drive the swinging rod to be flat, the pressing block props against the sliding rod to limit relative movement.
Further, the connectors are arranged on two sides of the sliding rod in pairs, the connectors on two sides of the sliding rod are respectively provided with a cutter and a compactor, and the rotating shafts on the same sliding block for connecting the connectors are synchronously rotated through gear meshing.
The beneficial effects of the invention are as follows: the film slitting machine can realize the arrangement of a plurality of groups of cutters and the linkage synchronous pitch adjustment of the linkage of the plurality of groups of cutters, and can also arrange cutters with different groups according to specific slitting requirements.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Examples
As shown in fig. 9, the film splitting machine is a schematic structural diagram, and comprises a frame 1 and a knife rest 2 arranged on the frame 1, wherein a metallized film passes through and is split under the knife rest 2.
As shown in fig. 1 and 2, the structure of the width-adjustable film slitting machine is schematically shown, and the knife holder 2 includes a distance adjuster 100, a connector 200, and a holder 300; the distance adjuster 100 comprises a slide bar 110 and a slide block 120 slidably arranged on the slide bar 110; the connector 200 comprises two swing rods 210 with one ends rotatably connected, the other ends of the two swing rods 210 are respectively and movably connected to the adjacent sliding blocks 120, and the rotation connection points of the two swing rods 210 are mounting points of a cutter; the retainer 300 is arranged between the adjacent connectors 200, the retainer 300 comprises two connecting rods 310, control rods 320 and guide sleeves 330, the two connecting rods 310 are connected with one end of each other in a rotating mode, the other ends of the two connecting rods 310 are connected with the swing rods 210 in a rotating mode respectively, the guide sleeves 330 are arranged at rotating connection points of the two connecting rods 310, the control rods 320 are perpendicular to the sliding rods 110, the control rods 320 slide to penetrate through the guide sleeves 330, the control rods 320 are always parallel to the plane where the connectors 200 are located, and the control rods 320 become angular bisectors of the two connecting rods 310 and also become angular bisectors of the two swing rods 210.
The film splitting machine can achieve the technical effects of setting and synchronous adjustment of multiple groups of cutters. The cutters are connected to the hinge ends of the connector 200, so that the number of the connectors 200 can be specifically determined according to the number requirements of the cutters, and the number of the corresponding sliders 120 can be directly determined correspondingly.
When the size adjustment is required, the slider 120 at one end of the control slide bar 110 is fixed, the slider 120 at the other end slides along the slide bar 110, the swing rod 210 connected with the sliding slider 120 swings, so that the cutter position of the swing rod 210 is changed, the other swing rod 210 swings in a linkage manner, and on the basis, the swinging can occur and be finished in one connector 200 without affecting other connectors 200, and in order to achieve the technical purpose of synchronous adjustment of a plurality of cutters, synchronous swinging control of a plurality of connectors 200 is achieved through the retainer 300 in the embodiment, and synchronous distance adjustment of cutters connected with the connectors 200 is further achieved.
As described above, when the swing link 210 of one connector 200 swings, as shown by the arrow direction in fig. 1, the connection point of the swing link 210 with the connection rod 310 changes, the connection rod 310 must also move, the linkage relationship is also transferred to the swing link 210 of the adjacent connector 200 through the other connection rod 310, and the movement change of the two connection rods 310 is symmetrical with respect to the control rod 320, so that the change of the adjacent connector 200 is consistent with the controlled connector 200, and thus, the linkage synchronous pitch action of linkage can be generated between the connectors 200.
As shown in fig. 3, in order to provide a driving structure of the film slitting machine, a screw rod 130 is disposed below (or beside) the slide rod 110, a nut engaged with the screw rod 130 is disposed on one slide block 120 at the outermost side, the screw rod 130 is engaged with the nut in a threaded manner, and after the screw rod 130 is driven by a motor, the slide block 120 can be driven to slide by the screw rod nut engagement.
In addition, the film splitting machine is further provided with a lifting unlocking mechanism, and the lifting unlocking mechanism is used for controlling the sliding of the sliding block 120 when the connector 200 is lifted up around the sliding block 120 in a rotating manner, the connector 200 enters a working state when falling down, the sliding block 120 cannot slide, namely, distance adjustment cannot be realized, and further, film splitting is prevented from being influenced due to misoperation.
As shown in fig. 2 and 4, the sliding block 120 is movably connected with the swing rod 210 through the connecting piece 140, connecting pieces 140 are respectively arranged on two sides of the sliding block 120 and are respectively connected with adjacent swing rods 210, the connecting pieces 140 synchronously rotate, as in fig. 2, the connecting pieces or the connecting pieces are fixed through the pieces or the connecting pieces, the pieces or the connecting pieces can also be used for fixing the control rod 320, the connecting pieces 140 are fixedly connected through the rotating shaft 150, the pressing block 151 is fixed in the middle of the rotating shaft 150, a cavity for accommodating the rotation of the pressing block 151 is arranged in the sliding block 120, a clamping groove matched with the pressing block 151 is formed in the sliding rod 110, and when the connector 200 falls down, the pressing block 151 rotates to press the sliding rod 110 and limits the sliding of the sliding block 120 through friction force.
The rotating shaft 150 includes an axle 152 and a sleeve 153, the sleeve 153 is sleeved outside the axle 152 and is fixed with the axle 152 by a bayonet lock, the sleeve 153 is fixedly connected with the connecting piece 140, the axle 152 penetrates through the sleeve 153 to connect all the rotating shafts 150, and the axle 152 can be connected with an output shaft of a motor, so that all the connectors 200 can be controlled by the motor to synchronously turn at the same time.
As shown in fig. 6, the connectors 200 are provided in pairs at both sides of the slide bar 110 for respectively mounting the cutter and the presser. As shown in fig. 7, the sleeve 153 for connecting the connectors 200 on both sides is provided with gears engaged with each other, thereby realizing the synchronous rotation of the two connection pieces 140, and thus the synchronous lifting or dropping of the cutter and the presser.
As shown in fig. 8, the centering device for the cutter and the compactor is correspondingly installed on the connector 200, the centering device comprises two movable rods 410 and a guide rod 420, the two movable rods 410 are movably connected with the end parts of the guide rod 420 to form a three-fork-shaped guide rod 420 which is positioned between the two movable rods 410, the other ends of the two movable rods 410 are respectively connected with the two swing rods 210 through pins in a rotating way, a knife holder 230 is arranged in a rotating connection point of the two swing rods 210, the knife holder is also rotatably installed at the connection point, for example, the end parts of the two swing rods 210 are arranged in a ring shape, a bearing is arranged in the ring, the swing rods 210 are rotatably connected with the knife holder 230 through the bearing, a through hole is arranged on the knife holder 230, and the guide rod 420 penetrates through the through hole, so that the guide rod 420 becomes an angular bisector of the two swing rods 210 and also becomes an angular bisector of the two movable rods 410. In this way, under the action of the centralizer, the tool holder 230 is always in a centering rotation state, and even if the swing rod 210 rotates, the stability of the tool holder 230 is not affected, so that the tool is not deviated.
It is noted that relational terms such as first and second, and the like, if any, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.