A high-efficiency slitting device for an ITO transparent conductive film production system

Abstract

The application discloses a high-efficiency slitting device for an ITO transparent conductive film production system, which comprises a rack unit, an unwinding unit, a guide roller unit, a cutting unit, a first winding unit and a second winding unit; the unwinding unit comprises an unwinding motor, an unwinding rotating shaft driven by the unwinding motor and an unwinding drum fixed to the unwinding rotating shaft; the first winding unit comprises a first winding motor, a first winding rotating shaft driven by the first winding motor and a first winding drum fixed to the first winding rotating shaft; the second winding unit comprises a second winding motor, a second winding rotating shaft driven by the second winding motor and a second winding drum fixed to the second winding rotating shaft; and the cutting unit comprises a cutting motor, a cutting rotating shaft driven by the cutting motor and a plurality of cutting knife units installed on the cutting rotating shaft. The slitting device can realize quick and automatic adjustment of the cutting knives, improve the slitting efficiency and thus the production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of optical film, in particular to a high-efficiency slitting device for ITO transparent conductive film production system. BACKGROUND

[0002] ITO transparent conductive film is ITO conductive film (ITOFILM) for touch screen of flat panel display (TFT-LCD, OLED, etc.), which is a key material in the production and manufacture of mobile phone / PC / home appliance touch screen. PVD (physical vapor deposition) technology is adopted to deposit a thin film with optical and conductive functions on the surface of a substrate by physical method under vacuum condition. The winding type vacuum sputtering coating technology has the characteristics of simple process flow, high production efficiency and no environmental pollution. Its production process mainly includes the steps of using light writing PET substrate, vacuum sputtering coating on the substrate, pasting PE / PPP protective film, slitting and packaging, and finished product packaging. Each step is particularly important for product quality and production efficiency. For example, the slitting process is mainly to slit a large roll with a relatively wide width into a small roll with a relatively narrow width. Since the specifications may be different each time, the position and number of the cutting knives need to be adjusted each time, which consumes a lot of time and objectively reduces the production efficiency. Moreover, the precision of manual adjustment may be deviated, and sometimes it needs to be adjusted repeatedly, which wastes more time. SUMMARY

[0003] The purpose of the application is to reduce the time for adjusting the cutting tool and improve the slitting efficiency, thereby improving the overall production efficiency. The application discloses a high-efficiency slitting device for ITO transparent conductive film production system.

[0004] Technical scheme: A slitting device for ITO transparent conductive film production system, comprising a rack unit, an unwinding unit, a guide roller unit, a cutting unit, a first winding unit and a second winding unit. The rack unit comprises two rack side plates. The unwinding unit, the guide roller unit, the cutting unit, the first winding unit and the second winding unit are all installed between the two rack side plates. The unwinding unit comprises an unwinding motor, an unwinding rotating shaft driven by the unwinding motor and an unwinding drum fixed to the unwinding rotating shaft. The first winding unit comprises a first winding motor, a first winding rotating shaft driven by the first winding motor and a first winding drum fixed to the first winding rotating shaft. The second winding unit comprises a second winding motor, a second winding rotating shaft driven by the second winding motor and a second winding drum fixed to the second winding rotating shaft. The cutting unit comprises a cutting motor, a cutting rotating shaft driven by the cutting motor and a plurality of cutting knife units installed on the cutting rotating shaft.

[0005] In some embodiments, other working modules can be added between the unwinding unit and the guide roller unit.

[0006] Further, a limiting guide rod and an end limiting unit are also installed between the two rack side plates, the end limiting unit comprises a limiting motor, a limiting bearing, a limiting slide rail and a lead screw installed between the limiting motor and the limiting bearing, the lead screw has two external threads with opposite screw directions, each external thread has a limiting plate, the limiting plate has a threaded hole matched with the external thread and a limiting slide groove matched with the limiting slide rail; the cutter unit comprises a rotating sleeve, a limiting sleeve connected with the rotating sleeve through a mounting bearing, a rotating ring fixedly connected with the rotating sleeve, a circular cutter fixed at the rotating ring, a first limiting block connected with the limiting sleeve through a connecting rod and a second limiting block connected with the first limiting block, the cutting rotating shaft comprises a plurality of strip-shaped limiting ribs, the rotating sleeve comprises a plurality of strip-shaped limiting grooves matched with the strip-shaped limiting ribs, the first limiting block has a limiting guide hole through which the limiting guide rod passes, and the two sides of the first limiting block are connected with abutting circular ring plates through limiting springs.

[0007] Further, the limiting guide rod is also fixed with two end limiting blocks, and all the abutting circular ring plates are located between the two end limiting blocks.

[0008] Further, when neither of the two limiting plates abuts against the second limiting block, each end limiting block abuts against an abutting circular ring plate.

[0009] Thus, the initial positions of the plurality of cutter units can be better limited.

[0010] Further, the cutting unit further comprises a connecting base plate connected between the two rack side plates and two fixing seats installed at the connecting base plate, one rotating cylinder is installed at each rack side plate, one rotating mounting plate is installed at each rotating cylinder, the strip-shaped slide rail is installed between the two rotating mounting plates, one of the two rotating mounting plates is installed with the limiting motor, and the other is installed with the limiting bearing, the two rotating mounting plates and the two fixing seats are in one-to-one correspondence, and a connecting rotating shaft is connected between the corresponding rotating mounting plate and the fixing seat.

[0011] Thus, the end limiting unit can rotate, so that the limiting plate can avoid the second limiting block to move, so as to pass the most end second limiting block.

[0012] Further, the rotating cylinder can be in a first state and a second state, when the two rotating cylinders are in the first state, the two limiting plates can abut against the second limiting block of the cutter unit; when the two rotating cylinders are in the second state, the two limiting plates can pass the second limiting block of the cutter unit.

[0013] Thus, when the number of cutter units needed to be used is less, by switching the state of the rotary air cylinder, the two limiting plates can pass through some cutter units to reduce the number of cutter units used.

[0014] Further, a locking unit is installed between the two rack side plates, the locking unit comprising a locking motor installed on one of the rack side plates, a locking bearing installed on the other rack side plate, a locking rotating shaft connected between the locking motor and the locking bearing, and a locking sleeve fixed to the locking rotating shaft, the locking sleeve having a plurality of locking connecting plates fixed thereto, each locking connecting plate having a plurality of locking blocks arranged in a row at equal intervals.

[0015] Further, the locking connecting plates are more than four and arranged in a ring at equal intervals.

[0016] Further, a row of locking blocks on each locking connecting plate has three parameters: the number of locking blocks, the length of the locking blocks, and the spacing between the locking blocks. At least one of the three parameters of any two locking connecting plates is different. The length of the locking blocks is the length of a single locking block along the axis of the locking rotating shaft, and the spacing between the locking blocks is the spacing between adjacent locking blocks.

[0017] Thus, the locking blocks can further lock the positions of the cutter units, making the cutter units more stable.

[0018] In some embodiments, the locking connecting plates are two or three.

[0019] Further, the locking blocks have an arc-shaped chamfer.

[0020] Further, each locking block can be inserted between the second limiting blocks of adjacent two cutter units.

[0021] Thus, the chamfer makes it easier for the locking blocks to be inserted between the second limiting blocks of adjacent two cutter units.

[0022] Further, the guide roller unit is located between the unwinding unit and the cutting unit; the two rack side plates include a first rack side plate and a second rack side plate, the unwinding motor, the cutting motor, the first winding motor, and the second winding motor are all installed on the first rack side plate, the second rack side plate is provided with an unwinding bearing cooperating with the unwinding rotating shaft, a cutting bearing cooperating with the cutting rotating shaft, a first unwinding bearing cooperating with the first winding rotating shaft, and a second unwinding bearing cooperating with the second winding rotating shaft; the first winding rotating shaft is provided with a plurality of first winding rollers, and the second winding rotating shaft is provided with a plurality of second winding rollers.

[0023] Further, each rack side plate is provided with a plurality of support legs.

[0024] Further, the surface of the abutting circular ring plate away from the spring has an anti-skid coating.

[0025] Thus, it is more convenient to stably abut and fix between two adjacent cutter units.

[0026] Further, each limiting plate abuts the second limiting block of one cutter unit, and all the abutting circular ring plates between the two limiting plates abut the adjacent abutting circular ring plate.

[0027] Beneficial effects: The slitting device of the present application can be applied to the ITO transparent conductive film production system, and effectively improve the efficiency of slitting, thereby improving the efficiency of the entire production system. Specifically, during production, since the cutter unit of the present application can slide along the guide rod and the cutting shaft, and the end limiting unit can automatically adjust the position, the automatic adjustment of the cutter position can be realized, and the locking unit can realize the corresponding multiple cutting specifications, thereby avoiding manual adjustment of the cutter, automatic one-time adjustment, higher adjustment accuracy, more time-saving, thereby improving the production efficiency of the entire ITO transparent conductive film production system. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 The figure is a schematic diagram of two end limiting units of embodiment 1 not limiting the position of multiple cutter units;

[0029] Figure 2 The figure is a schematic diagram of two end limiting units of embodiment 1 limiting multiple cutter units;

[0030] Figure 3 The figure is a schematic diagram of embodiment 1 using the locking unit to lock multiple cutter units;

[0031] Figure 4 The figure is a schematic diagram of the slitting device of embodiment 1 cutting ITO transparent conductive film;

[0032] Figure 5 The figure is a schematic diagram of two limiting plates of embodiment 2 passing through the most end cutter unit;

[0033] Figure 6 The figure is a schematic diagram of two limiting plates of embodiment 2 limiting multiple cutter units, and the locking unit locking the position of multiple cutter units. DETAILED DESCRIPTION

[0034] 1.1 rack side plate; 1.2 support leg; 1.3 unwinding unit; 1.4 guide roller unit; 1.5 first winding rotary shaft; 1.6 first winding cylinder; 1.7 second winding rotary shaft; 1.8 second winding cylinder; 2.1 cutting rotary shaft; 2.2 strip-shaped limiting convex rib; 2.3 rotary sleeve; 2.4 mounting bearing; 2.5 limiting sleeve; 2.6 connecting rod; 2.7 first limiting block; 2.8 second limiting block; 2.9 rotary ring; 2.10 circular ring-shaped cutter; 2.11 spring; 2.12 abutting circular ring plate; 2.13 limiting guide rod; 3.1 limiting slide rail; 3.2 screw rod; 3.3 rotary mounting plate; 3.4 rotary air cylinder; 3.5 fixed seat; 3.6 connecting rotary shaft; 3.7 limiting motor; 3.8 limiting plate; 3.9 connecting base plate; 4.1 locking motor; 4.2 locking rotary shaft; 4.3 locking sleeve; 4.4 locking connecting plate; 4.5 locking plug-in block; 5 film before splitting; 5.1 film wound by the first winding cylinder; 5.2 film wound by the second winding cylinder.

[0035] Embodiment 1

[0036] As Figures 1-4As shown, the film slitting device of the present application comprises a rack unit, a unwinding unit 1.3, a guide roller unit 1.4, a cutting unit, a first winding unit and a second winding unit, the rack unit comprises two rack side plates 1.1, the unwinding unit 1.3, the guide roller unit 1.4, the cutting unit, the first winding unit and the second winding unit are all installed between the two rack side plates; the unwinding unit 1.3 comprises an unwinding motor, an unwinding rotating shaft driven by the unwinding motor and an unwinding drum fixed to the unwinding rotating shaft, the first winding unit comprises a first winding motor, a first winding rotating shaft 1.5 driven by the first winding motor and a first winding drum 1.6 fixed to the first winding rotating shaft 1.5, the second winding unit comprises a second winding motor, a second winding rotating shaft 1.7 driven by the second winding motor and a second winding drum 1.8 fixed to the second winding rotating shaft 1.7, the cutting unit comprises a cutting motor, a cutting rotating shaft 2.1 driven by the cutting motor and a plurality of cutter units installed at the cutting rotating shaft 2.1; a limiting guide rod 2.13 and an end limiting unit are also installed between the two rack side plates 1.1, the end limiting unit comprises a limiting motor 3.7, a limiting bearing, a limiting sliding rail 3.1 and a lead screw 3.2 installed between the limiting motor 3.7 and the limiting bearing, the lead screw 3.2 has two external threads with opposite screw directions at the lead screw 3.2, each external thread has a limiting plate 3.8 at the external thread, the limiting plate 3.8 has a threaded hole matched with the external thread and a limiting sliding groove matched with the limiting sliding rail 3.1; the cutter unit comprises a rotating sleeve 2.3, a limiting sleeve 2.5 connected with the rotating sleeve 2.3 through a mounting bearing 2.4, a rotating ring 2.9 fixedly connected with the rotating sleeve 2.3, a circular cutter 2.10 fixed to the rotating ring 2.9, a first limiting block 2.7 connected with the limiting sleeve 2.5 through a connecting rod 2.6 and a second limiting block 2.8 connected with the first limiting block 2.7, the cutting rotating shaft 2.1 comprises a plurality of strip-shaped limiting protrusions 2.2, the rotating sleeve 2.3 comprises a plurality of strip-shaped limiting grooves matched with the strip-shaped limiting protrusions 2.2, the first limiting block 2.7 has a limiting guide hole through which the limiting guide rod passes, and the two sides of the first limiting block 2.7 are both connected with an abutting circular plate 2.12 through a limiting spring 2.11.

[0037] The cutting unit further comprises a connecting base plate 3.9 connected between the two rack side plates 1.1, and two fixing seats 3.5 mounted on the connecting base plate 3.9, one rotary air cylinder 3.4 is mounted on each of the rack side plates 1.1, one rotary mounting plate 3.3 is mounted on each of the rotary air cylinders 3.4, the strip-shaped slide rail 3.1 is mounted between the two rotary mounting plates 3.3, one of the two rotary mounting plates 3.3 is provided with the limiting motor 3.7, and the other is provided with the limiting bearing, the two rotary mounting plates 3.3 and the two fixing seats 3.5 are in one-to-one correspondence, and a connecting rotating shaft 3.6 is connected between the corresponding rotary mounting plate 3.3 and the fixing seat 3.5. The film slitting device further comprises a locking unit mounted between the two rack side plates 1.1, the locking unit comprises a locking motor 4.1 mounted on one of the rack side plates 1.1, a locking bearing mounted on the other rack side plate 1.1, a locking rotating shaft 4.2 connected between the locking motor 4.1 and the locking bearing, and a locking sleeve 4.3 fixed to the locking rotating shaft 4.2, a plurality of locking connecting plates 4.4 are fixed to the locking sleeve 4.3, and a plurality of locking plug-in blocks 4.5 are arranged on each locking connecting plate 4.4 in a row at equal intervals. The locking connecting plate 4.4 has more than four and is arranged at equal intervals in a ring shape; one row of abutting plug-in blocks on each locking connecting plate has three parameters of plug-in block quantity, plug-in block length and plug-in block spacing, and at least one of the three parameters of any two locking connecting plates is different; the plug-in block length is the length of a single locking plug-in block along the axis direction of the locking rotating shaft, and the plug-in block spacing is the spacing between adjacent two locking plug-in blocks (i.e. the spacing between the opposite surfaces). The locking plug-in block 4.5 has an arc-shaped chamfer.

[0038] The guide roller unit 1.4 is located between the unwinding unit 1.3 and the cutting unit; the two rack side plates 1.1 comprise a first rack side plate and a second rack side plate, the unwinding motor, the cutting motor, the first winding motor and the second winding motor are all mounted on the first rack side plate, the second rack side plate is provided with an unwinding bearing matched with the unwinding rotating shaft, a cutting bearing matched with the cutting rotating shaft, a first unwinding bearing matched with the first winding rotating shaft and a second unwinding bearing matched with the second winding rotating shaft; the first winding rotating shaft 1.5 is provided with a plurality of first winding cylinders 1.6, and the second winding rotating shaft 1.7 is provided with a plurality of second winding cylinders 1.8. Each rack side plate 1.1 is provided with a plurality of supporting legs 1.2. The surface of the abutting circular ring plate 2.12 away from the spring 2.11 has an anti-skid coating; each limiting plate 3.8 abuts against the second limiting block 2.8 of one of the cutter units, and all the abutting circular ring plates 2.12 between the two limiting plates 3.8 abut against the adjacent abutting circular ring plates 2.12.

[0039] As shown in the figure, the film to be cut is unwound from the unwinding device, passes through the guide roller unit and the cutting unit, and is wound up from two directions, thereby cutting the whole roll of film into smaller rolls. As shown in the figure, when adjusting the cutters, due to the spring limiting between adjacent cutter units, a certain distance can be maintained, and the distance between adjacent cutter units is equal when limited. Furthermore, the cutter units at both ends are limited by limiting plates. Based on the number of cutter units between the two limiting plates, a suitable locking connecting plate is selected, causing the locking connecting plate to rotate, and multiple locking blocks are inserted between the second limiting blocks of adjacent cutter units, thereby locking the positions of multiple cutter units. At this time, the position of the limiting sleeve is fixed, but due to the action of the mounting bearing, the rotating sleeve can rotate with the cutting shaft, thereby achieving effective cutting of the film.

[0040] Example 2

[0041] like Figures 5-6 As shown, Example 2 represents a different cutting configuration compared to Example 1, such as... Figures 5-6 As shown, since the rotary cylinder can rotate, the limiting plate can pass over some cutting units. In embodiment 2, only 5 cutting units are used. Two limiting plates limit the 5 cutting units, and 4 locking blocks at another locking connecting plate are inserted between the second limiting blocks of adjacent cutting units. Thus, the two limiting plates and the 4 locking blocks stably lock the horizontal position of multiple cutting units, which is more conducive to the slitting operation.

[0042] Although the present invention has been illustrated and described with reference to preferred embodiments, those skilled in the art should understand that various changes and modifications can be made to the present invention without departing from the scope defined by the claims.

Claims

1. A high efficiency slitting device for ITO transparent conductive film production system, characterized in that, The rack unit includes two rack side plates, an unwinding unit, a guide roller unit, a cutting unit, a first winding unit, a second winding unit, and a locking unit. The unwinding unit includes an unwinding motor, an unwinding rotating shaft, and an unwinding drum. The first winding unit includes a first winding motor, a first winding rotating shaft, and a first winding drum. The second winding unit includes a second winding motor, a second winding rotating shaft, and a second winding drum. The cutting unit includes a cutting motor, a cutting rotating shaft with a plurality of strip-shaped limiting protrusions, and a plurality of cutting knife units. A limiting guide rod and an end limiting unit are installed between the two rack side plates. The end limiting unit includes a limiting motor, a limiting bearing, a limiting sliding rail, and a lead screw installed between the limiting motor and the limiting bearing. The lead screw has two external threads with opposite screw directions. Each external thread has a limiting plate with a threaded hole matched with the external thread and a limiting sliding groove matched with the limiting sliding rail. The cutting knife unit includes a rotating sleeve, a limiting sleeve connected with the rotating sleeve through a mounting bearing, a rotating ring fixedly connected with the rotating sleeve, a circular ring-shaped cutting knife fixed to the rotating ring, a first limiting block connected with the limiting sleeve through a connecting rod, and a second limiting block connected with the first limiting block. The cutting rotating shaft includes a plurality of strip-shaped limiting protrusions. The rotating sleeve includes a plurality of strip-shaped limiting grooves matched with the strip-shaped limiting protrusions. The first limiting block has a limiting guide hole through which the limiting guide rod passes. The two sides of the first limiting block are connected with abutting circular ring plates through limiting springs. The cutting unit includes a connecting base plate and two fixed seats. Each rack side plate is provided with a rotating cylinder. Each rotating cylinder is provided with a rotating mounting plate. The limiting sliding rail is installed between the two rotating mounting plates. The two rotating mounting plates are respectively provided with a limiting motor and a limiting bearing. A connecting rotating shaft is connected between the corresponding rotating mounting plate and the fixed seat. The locking unit includes a locking motor, a locking bearing, a locking rotating shaft, and a locking sleeve fixed with a plurality of locking connecting plates. Each locking connecting plate is provided with a plurality of locking blocks arranged in a row at equal intervals. The row of locking blocks on each locking connecting plate has three parameters: the number of locking blocks, the length of the locking blocks, and the spacing between the locking blocks. At least one of the three parameters of any two locking connecting plates is different. Each rack side plate is provided with a plurality of supporting legs.

2. The high efficiency slitting device for ITO transparent conductive thin film production system according to claim 1, characterized in that, The number of locking connecting plates is more than four, and they are arranged in a ring at equal intervals. The length of the locking blocks is the length of a single locking block along the axis of the locking rotating shaft. The spacing between the locking blocks is the spacing between adjacent locking blocks.

3. The high efficiency slitting device for ITO transparent conductive thin film production system according to claim 1, characterized in that, The locking blocks have an arc-shaped chamfer.

4. The high efficiency slitting device for ITO transparent conductive thin film production system according to claim 1, characterized in that, The guide roller unit is located between the unwinding unit and the cutting unit; the two rack side plates include a first rack side plate and a second rack side plate, the unwinding motor, the cutting motor, the first winding motor and the second winding motor are installed at the first rack side plate, the second rack side plate is provided with an unwinding bearing matched with the unwinding rotating shaft, a cutting bearing matched with the cutting rotating shaft, a first unwinding bearing matched with the first winding rotating shaft and a second unwinding bearing matched with the second winding rotating shaft; the first winding rotating shaft is provided with a plurality of first winding rollers, and the second winding rotating shaft is provided with a plurality of second winding rollers.

5. The high efficiency slitting device for ITO transparent conductive thin film production system according to claim 1, wherein, The surface of the abutting circular ring plate away from the spring is provided with an anti-skid coating; each limiting plate abuts against the second limiting block of one cutter unit, and all the abutting circular ring plates between the two limiting plates abut against the adjacent abutting circular ring plate.

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