Die cutting equipment for OCA (Optical Clear Adhesive)

Abstract

The utility model relates to the technical field of die cutting equipment, in particular to OCA (optical clear adhesive) die cutting equipment which comprises a workbench and a conveying belt arranged on the workbench, a supporting frame is arranged on the upper end face of the workbench, an air cylinder is arranged on the upper end face of the supporting frame, a cutter is arranged on the inner side of the supporting frame, and the output end of the air cylinder is in butt joint with the cutter. The die cutting equipment comprises a supporting frame, a cutter is arranged on the supporting frame, two anti-sticking rollers are rotationally arranged on the inner side of the supporting frame and located on the two sides of the cutter, and a release agent adding assembly is arranged on the supporting frame and used for intermittently adding a release agent to the anti-sticking rollers. Through the arrangement of the release agent adding assembly, the release agent can be intermittently added to the anti-sticking roller, so that the phenomenon that the anti-sticking roller is bonded with the OCA optical cement due to the fact that the dosage of the release agent on the anti-sticking roller is small can be avoided, and the release agent on the surface of the anti-sticking roller is easy and convenient to add.

Description

TECHNICAL FIELD

[0001] The utility model relates to a die cutting equipment technical field, concretely is a kind of OCA optical adhesive die cutting equipment. BACKGROUND

[0002] OCA optical adhesive is a kind of transparent glue commonly used in display screen, touch screen, optical element and other fields, with good optical transmittance, bonding strength and weather resistance, in these applications, OCA optical adhesive is used to adhere different layers (such as touch screen, protective glass and display panel) together, in order to make these glue layers adapt to different shape and size applications, usually need to use die cutting equipment to carry out accurate cutting, OCA optical adhesive die cutting equipment is the machine specially used for accurately cutting OCA optical adhesive material into required shape and size;Die cutting equipment uses precision cutter or mould, and OCA optical adhesive is cut by pressure, heat and the like, to ensure that the edge after cutting is smooth, size is accurate, and meets product requirements.

[0003] For example, the application number for a kind of OCA optical adhesive die cutting equipment is 201820367194.2, in cutting process, release agent on anti-sticking roller is always in contact with cutter die, to avoid pulling glue in cutting process.

[0004] It has the following shortcomings:

[0005] With the use of anti-sticking roller, the release agent on anti-sticking roller will gradually be consumed, and if the release agent on anti-sticking roller is consumed more and cannot be found in time, it will cause the anti-sticking roller pressed on OCA optical adhesive to appear bonding phenomenon with OCA optical adhesive.

[0006] Therefore, we propose a kind of OCA optical adhesive die cutting equipment. INVENTION CONTENTS

[0007] One of the technical problems to be solved by the present application is: how to design a die cutting equipment that can intermittently add release agent to anti-sticking roller.

[0008] To solve the above technical problems, the present application provides an OCA optical adhesive die cutting equipment, which comprises a workbench and a conveying belt arranged on the workbench, an upper end surface of the workbench is provided with a supporting frame, an upper end surface of the supporting frame is provided with a gas cylinder, an inner side of the supporting frame is provided with a cutter, an output end of the gas cylinder is connected with the cutter, two anti-sticking rollers are rotatably arranged on the inner side of the supporting frame, the two anti-sticking rollers are located on the two sides of the cutter, a release agent adding assembly is arranged on the supporting frame, and the release agent adding assembly is used for intermittently adding release agent to the anti-sticking roller.

[0009] In some embodiments, the release agent adding assembly comprises two release agent storage boxes, two dosing boxes and two protrusions, the two release agent storage boxes are arranged on the two sides of the upper end surface of the support frame, the two dosing boxes are arranged above the two anti-sticking rollers respectively, the two protrusions are arranged on the two anti-sticking rollers respectively, and each of the two protrusions is arranged on the two anti-sticking rollers.

[0010] In some embodiments, the two release agent storage boxes correspond to the two dosing boxes respectively, a plurality of connecting pipes are connected between the corresponding release agent storage boxes and dosing boxes, a plurality of discharge holes are arranged on the lower end surface of the dosing box, a driving motor and a rotating member are arranged on the support frame, the rotating member is arranged on the support frame in a rotatable manner, the two rotating members are connected through a belt, and the output end of the driving motor is connected to one of the anti-sticking rollers.

[0011] In some embodiments, a movable cross plate is arranged on the inner side of the dosing box, top rods are arranged on the two sides of the lower end surface of the movable cross plate, one end of each of the top rods penetrates through the dosing box and is arranged on the anti-sticking roller, the two top rods correspond to the two protrusions on the anti-sticking roller respectively, a helical spring is arranged on the top rod, and the two ends of the helical spring are connected to the lower end surface of the movable cross plate and the inner bottom end of the dosing box respectively.

[0012] In some embodiments, a plurality of sealing blocks are arranged on the lower end surface of the movable cross plate, and the plurality of sealing blocks correspond to the plurality of discharge holes on the lower end surface of the dosing box respectively.

[0013] In some embodiments, one side of the anti-sticking roller is provided with a release agent scraping assembly, the release agent scraping assembly is used for uniformly coating the release agent added on the anti-sticking roller on the surface of the anti-sticking roller, the release agent scraping assembly comprises a connecting frame arranged on the support frame, a scraper is arranged on the side wall surface opposite to the anti-sticking roller of the connecting frame, one end of the scraper away from the connecting frame is arranged on the anti-sticking roller, and baffles are arranged on the two sides of the upper end surface of the scraper.

[0014] In some embodiments, the connecting frame is an inclined frame, one end of the scraper connected to the connecting frame is arranged on the anti-sticking roller, and one end of the two baffles of the upper end surface of the scraper is arranged on the anti-sticking roller.

[0015] The utility model at least has the following beneficial effects:

[0016] Through the arrangement of the release agent adding assembly, the release agent can be intermittently added to the anti-sticking roller, which can not only avoid the phenomenon that the anti-sticking roller and the OCA optical adhesive are bonded due to the small amount of release agent on the anti-sticking roller, but also make the addition of the release agent on the surface of the anti-sticking roller simple and convenient. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a support frame perspective view of the utility model;

[0019] Figure 3 It is a cutter and support frame connection perspective view of the utility model;

[0020] Figure 4 It is a release agent adding assembly and support frame connection perspective view of the utility model;

[0021] Figure 5 It is a blanking box sectional view of the utility model;

[0022] Figure 6 It is a blanking box front sectional view of the utility model; Figure 5 It is a A place enlarged view of the utility model;

[0023] Figure 7 It is a blanking box front sectional view of the utility model;

[0024] Figure 8 It is a release agent scraping assembly perspective view of the utility model in embodiment 2.

[0025] In the figure: 1, workbench; 2, conveying belt; 3, support frame; 4, air cylinder; 5, cutter; 6, release agent adding assembly; 61, release agent storage box; 62, protruding block; 63, blanking box; 64, connecting pipe; 65, discharge hole; 66, driving motor; 67, rotating part; 68, moving cross plate; 69, ejector rod; 610, helical spring; 611, sealing block; 7, release agent scraping assembly; 71, connecting frame; 72, scraper; 73, baffle; 9, anti-sticking roller. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0027] Embodiment 1:

[0028] Please refer to Figures 1-3 The utility model provides a technical scheme:

[0029] The utility model provides a kind of OCA optical adhesive die cutting equipment, including workbench 1 and the conveying belt 2 being arranged on workbench 1, the upper end surface of the workbench 1 is provided with support frame 3, the upper end surface of the support frame 3 is provided with pneumatic cylinder 4, the inside of the support frame 3 is provided with cutter 5, the output end of the pneumatic cylinder 4 is docked with cutter 5, two anti-sticking rollers 9 are rotationally arranged in the inside of the support frame 3, two the anti-sticking rollers 9 are located the two sides of cutter 5, release agent adding assembly 6 is provided on the support frame 3, and the release agent adding assembly 6 is used to add release agent to the anti-sticking roller 9 intermittently.

[0030] Wherein, pneumatic cylinder 4 is used to push cutter 5 to cut OCA optical adhesive on conveying belt 2.

[0031] Please refer to Figures 4-7 , the release agent adding assembly 6 includes release agent storage box 61, blanking box 63 and lug 62, the release agent storage box 61 and blanking box 63 are provided with two, two the release agent storage box 61 is arranged on the upper end surface of support frame 3 both sides, two the blanking box 63 is located above two anti-sticking rollers 9 respectively, the lug 62 is provided with two groups, two groups the lug 62 is arranged on two anti-sticking rollers 9 respectively, and each group the lug 62 is provided with two.

[0032] Two the release agent storage box 61 is respectively corresponding with the position of two blanking box 63, and a plurality of connecting pipes 64 are connected between the release agent storage box 61 and the blanking box 63 corresponding to each other, a plurality of discharge holes 65 are formed in the lower end surface of the blanking box 63, a driving motor 66 and a rotating part 67 are arranged on the support frame 3, the rotating part 67 is provided with two, the rotating part 67 is rotatably connected with the support frame 3, two the rotating part 67 is connected by belt, and the output end of the driving motor 66 is docked with one anti-sticking roller 9.

[0033] Wherein, connecting pipe 64 is communicated with release agent storage box 61 and blanking box 63, so that the release agent inside release agent storage box 61 can flow into the inside of blanking box 63 through connecting pipe 64, and two rotating parts 67 are respectively docked with two anti-sticking rollers 9.

[0034] The inside of the blanking box 63 is provided with a moving cross plate 68, the lower end surface of the moving cross plate 68 is provided with a top rod 69, one end of the top rod 69 penetrates through the blanking box 63 and is arranged on the anti-sticking roller 9, two the top rod 69 is respectively corresponding with the position of two lugs 62 on the anti-sticking roller 9, the top rod 69 is provided with a helical spring 610, and two ends of the helical spring 610 are respectively connected with the lower end surface of the moving cross plate 68 and the inside bottom end of the blanking box 63.

[0035] The lower end surface of the moving horizontal plate 68 is provided with a plurality of sealing blocks 611, and the plurality of sealing blocks 611 correspond to the positions of the plurality of discharge holes 65 on the lower end surface of the discharge box 63.

[0036] It should be noted that the plurality of sealing blocks 611 are respectively arranged on the plurality of discharge holes 65 on the discharge box 63.

[0037] When the cutting knife 5 cuts the OCA optical glue, the driving motor 66 is started, the driving motor 66 drives the anti-sticking roller 9 connected thereto to rotate, the anti-sticking roller 9 drives the rotating member 67 connected thereto to rotate, the rotating member 67 drives another rotating member 67 to rotate through a belt, the rotation of the two rotating members 67 synchronously drives the two anti-sticking rollers 9 to rotate, the rotation of the anti-sticking roller 9 drives the protrusion 62 thereon to rotate, when the protrusion 62 rotates to the ejector rod 69 on the discharge box 63, the protrusion 62 pushes the ejector rod 69 to move upwards, the ejector rod 69 drives the moving horizontal plate 68 to move upwards, the moving upwards of the moving horizontal plate 68 pulls the helical spring 610, the helical spring 610 is deformed under stress, the moving horizontal plate 68 drives the sealing block 611 to move upwards, the moving upwards of the sealing block 611 causes the release agent inside the discharge box 63 to fall on the anti-sticking roller 9 through the discharge hole 65, when the protrusion 62 on the anti-sticking roller 9 is disengaged from the ejector rod 69, the moving horizontal plate 68 moves downwards under the weight of the moving horizontal plate 68 and the elastic potential energy of the helical spring 610, until the sealing block 611 on the moving horizontal plate 68 is arranged on the bottom end of the inside of the discharge box 63, so as to seal the discharge hole 65 on the discharge box 63, and the above steps are repeated to realize intermittent addition of the release agent on the anti-sticking roller 9.

[0038] The setting of the release agent adding assembly 6 can intermittently add the release agent to the anti-sticking roller 9, which can not only avoid the phenomenon that the anti-sticking roller 9 is bonded with the OCA optical glue due to the small amount of release agent on the anti-sticking roller 9, but also make the addition of the release agent on the surface of the anti-sticking roller 9 simple and convenient.

[0039] Embodiment 2: please refer to Figure 8 , based on embodiment 1, the utility model provides a kind of release agent scraping assembly 7 technical scheme:

[0040] The side of the anti-sticking roller 9 is provided with the release agent scraping assembly 7, the release agent scraping assembly 7 is used to evenly coat the release agent added on the anti-sticking roller 9 on the surface of the anti-sticking roller 9, the release agent scraping assembly 7 includes the connecting frame 71 provided on the support frame 3, the side wall surface opposite to the anti-sticking roller 9 of the connecting frame 71 is provided with the scraper 72, one end of the scraper 72 away from the connecting frame 71 is attached to the anti-sticking roller 9, and the upper end surface of the scraper 72 is provided with the baffle 73 on both sides.

[0041] The connecting frame 71 is an inclined frame, one end of a scraper 72 connected to the connecting frame 71 is arranged on the anti-sticking roller 9, and two baffles 73 on the upper end surface of the scraper 72 are arranged on the anti-sticking roller 9.

[0042] When the release agent added on the anti-sticking roller 9 reaches the scraper 72, the scraper 72 can scrape the release agent accumulated in the form of water droplets or locally on the anti-sticking roller 9, and the excess release agent scraped can be located between the two baffles 73 on the upper end surface of the scraper 72, and the release agent between the two baffles 73 on the upper end surface of the scraper 72 can be used to supplement the release agent lacking on the anti-sticking roller 9 in time.

[0043] Through the setting of the release agent scraping assembly 7, the release agent dripping on the anti-sticking roller 9 can be scraped, so that the uneven distribution of the release agent on the anti-sticking roller 9 can be avoided, and the local lack of the release agent on the anti-sticking roller 9 can be avoided to affect the anti-sticking property of the anti-sticking roller 9.

[0044] It should be noted that in this document, the relationship terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0045] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model.

Claims

1. A die cutting device for OCA optical adhesive, comprising a workbench (1) and a conveying belt (2) arranged on the workbench (1), the upper end face of the workbench (1) is provided with a supporting frame (3), the upper end face of the supporting frame (3) is provided with a pneumatic cylinder (4), the inner side of the supporting frame (3) is provided with a cutter (5), the output end of the pneumatic cylinder (4) is in butt joint with the cutter (5), the inner side of the supporting frame (3) is rotatably provided with two anti-sticking rollers (9), and the two anti-sticking rollers (9) are located on the two sides of the cutter (5), characterized in that: the anti-sticking rollers (9) are arranged on the two sides of the cutter (5) and are used for preventing the OCA optical adhesive from adhering to the cutter (5) during the die cutting process. The support frame (3) is provided with a release agent adding assembly (6) for intermittently adding release agent to the anti-sticking roller (9).

2. The die cutting apparatus of OCA optical glue according to claim 1, wherein: The release agent adding assembly (6) comprises release agent storage boxes (61), discharge boxes (63) and protrusions (62), the release agent storage boxes (61) and the discharge boxes (63) are both provided with two, the two release agent storage boxes (61) are arranged on the two sides of the upper end face of the support frame (3), the two discharge boxes (63) are respectively located above the two anti-sticking rollers (9), the protrusions (62) are provided with two groups, the two groups of protrusions (62) are respectively arranged on the two anti-sticking rollers (9), and each group of protrusions (62) is provided with two.

3. The die cutting apparatus of OCA optical glue according to claim 2, characterized in that: The two release agent storage boxes (61) and the two discharge boxes (63) are correspondingly arranged, a plurality of connecting pipes (64) are connected between the corresponding release agent storage boxes (61) and the discharge boxes (63), a plurality of discharge holes (65) are arranged on the lower end face of the discharge box (63), a driving motor (66) and a rotating piece (67) are arranged on the support frame (3), the rotating piece (67) is provided with two, the rotating piece (67) is rotatably connected with the support frame (3), the two rotating pieces (67) are connected through a belt, and the output end of the driving motor (66) is connected with one anti-sticking roller (9).

4. The die cutting apparatus of OCA optical glue according to claim 2, characterized in that: The inner side of the discharge box (63) is provided with a moving cross plate (68), the lower end face of the moving cross plate (68) is provided with a top rod (69), one end of the top rod (69) penetrates through the discharge box (63) and is arranged on the anti-sticking roller (9), the two top rods (69) are correspondingly arranged with the two protrusions (62) on the anti-sticking roller (9), and a spiral spring (610) is arranged on the top rod (69).

5. The die cutting apparatus of OCA optical glue according to claim 4, characterized in that: The lower end face of the moving cross plate (68) is provided with a plurality of sealing blocks (611), and the plurality of sealing blocks (611) are correspondingly arranged with the plurality of discharge holes (65) on the lower end face of the discharge box (63).

6. The die cutting apparatus of OCA optical glue according to claim 1, wherein: One side of the anti-sticking roller (9) is provided with a release agent scraping assembly (7), the release agent scraping assembly (7) is used for uniformly coating the release agent added on the anti-sticking roller (9) on the surface of the anti-sticking roller (9), the release agent scraping assembly (7) comprises a connecting frame (71) arranged on the support frame (3), a scraper (72) is arranged on the side wall of the connecting frame (71) opposite to the anti-sticking roller (9), one end of the scraper (72) away from the connecting frame (71) is arranged on the anti-sticking roller (9), and a baffle (73) is arranged on the two sides of the upper end face of the scraper (72).

7. The die cutting apparatus of OCA optical glue according to claim 6, characterized in that: The connecting frame (71) is an inclined frame, one end of the scraper (72) connected with the connecting frame (71) is arranged on the anti-sticking roller (9), and one end of the two baffles (73) on the upper end face of the scraper (72) is arranged on the anti-sticking roller (9).

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