阅读说明：本技术 一种保护膜自动裁切机 (Automatic guillootine of protection film ) 是由 王强 杨超 向征 张勇 施景 于 2020-06-29 设计创作，主要内容包括：本发明公开了一种保护膜自动裁切机,包括机架,还包括放料机构、夹持机构、裁切机构和折弯机构。放料机构用于放置保护膜,夹持机构用于将成卷的保护膜张开并固定,裁切机构用于对保护膜进行裁切,折弯机构用于对保护膜的一边进行折弯,保护膜经上述机构处理后完成裁切和折边,优化了工序,全程自动化,无需人力投入且工作效率高,一台机器即可满足大量的生产需要。(The invention discloses an automatic cutting machine for a protective film, which comprises a rack, a discharging mechanism, a clamping mechanism, a cutting mechanism and a bending mechanism. Drop feed mechanism is used for placing the protection film, and fixture is used for opening the protection film of lapping and fixes, cuts the mechanism and is used for cutting the protection film, and the mechanism of bending is used for bending one side of protection film, and the protection film is handled through above-mentioned mechanism and is accomplished to cut and the hem, has optimized the process, and full automation need not human input and work efficiency height, and a machine can satisfy a large amount of production needs.)

1. An automatic cutting machine for a protective film is characterized by comprising a rack (1) and further comprising

The discharging mechanism comprises a discharging roller (201) and two feeding rollers (202), the discharging roller (201) and the feeding rollers (202) are both horizontally arranged on the rack (1), the discharging roller (201) is used for placing a coiled protective film, and the protective film pulled out of the coiled protective film extends out of the space between the two feeding rollers (202);

the clamping mechanism comprises a pneumatic clamping hand (301) for clamping the protective film, a front pressing plate (302) and a rear pressing plate (303) for pressing the protective film, a clamping slide rail (304) perpendicular to the direction of the feed roller (202) is arranged on the rack (1), the clamping slide rail (304) is provided with two parallel groups, a clamping frame (305) spans the two groups of clamping slide rails (304), the pneumatic clamping hand (301) is installed on the clamping frame (305), a synchronous belt (306) is arranged on the clamping slide rail (304), the synchronous belt (306) is connected with the clamping frame (305) and used for driving the clamping frame (305) to move on the clamping slide rail (304), and the synchronous belt (306) is connected with a clamping motor (307) for driving the synchronous belt (306) to rotate; the front pressing plate (302) and the rear pressing plate (303) are arranged between the pneumatic clamping hand (301) and the feeding roller (202), the front pressing plate (302) is close to the feeding roller (202), the rear pressing plate (303) is close to the pneumatic clamping hand (301), the front pressing plate (302) is connected with a front cylinder (308) used for driving the front pressing plate (302) to move up and down, the front pressing plate (302) is installed and fixed on a piston rod of the front cylinder (308), the rear pressing plate (303) is connected with a rear cylinder (309) used for driving the rear pressing plate (303) to move up and down, the rear pressing plate (303) is installed and fixed on a piston rod of the rear cylinder (309), the front cylinder (308) and the rear cylinder (309) are installed and fixed on the rack (1), a front lining plate (310) and a rear lining plate (311) are respectively arranged below the front pressing plate (302) and the rear pressing plate (303), and when the front pressing plate (302) and the rear pressing plate (303) press against the protective film, the front lining plate (310) and the rear lining plate (311) are respectively ) Making mutual contact;

the cutting mechanism comprises a cutting knife (401), the cutting knife (401) is used for cutting a protective film, the cutting knife (401) is arranged between a front pressing plate (302) and a rear pressing plate (303), a horizontal cutting sliding rail (403) is arranged on a rack (1), the direction of the cutting sliding rail (403) is parallel to a clamping frame (305), a knife rest (402) of the cutting knife (401) is connected onto the cutting sliding rail (403) in a sliding mode, a cutting screw rod (404) is arranged on the cutting sliding rail (403), the cutting screw rod (404) is in threaded connection with the knife rest (402), and the cutting screw rod (404) is connected with a cutting motor used for driving the cutting screw rod (404) to rotate;

the mechanism of bending, the mechanism of bending includes one and bends pole (501), bend pole (501) and cut slide rail (403) parallel, it sets up between leading clamp plate (302) and rearmounted clamp plate (303) to bend pole (501), the position that lies in bending pole (501) both ends on frame (1) is equipped with guide holder (502), be equipped with vertical spout (5021) on guide holder (502), the tip of bending pole (501) stretches into in spout (5021), still be equipped with on frame (1) and bend cylinder (503), the piston rod of bending cylinder (503) is connected with bending pole (501) and is used for driving bending pole (501) and reciprocate in spout (5021).

2. The automatic protective film cutting machine according to claim 1, wherein the three sets of front pressing plates (302) are provided, and the three sets of front pressing plates (302) are arranged in an isosceles triangle.

3. The automatic cutting machine for protective films according to claim 1, wherein the two sets of the rear pressing plates (303) are arranged, and the two sets of the rear pressing plates (303) are symmetrically arranged on two sides of the frame (1).

4. The automatic cutting machine for the protective films according to claim 1, wherein a transmission shaft (312) is arranged below the clamping slide rail (304) on the frame (1), the transmission shaft (312) is connected with a clamping motor (307) through a belt, a belt wheel (313) for supporting the synchronous belt (306) is arranged in the synchronous belt (306), and the belt wheel (313) is connected with the transmission shaft (312) through a belt.

5. The automatic cutting machine for the protective films according to claim 1, wherein a horizontal groove (5022) in the horizontal direction is formed in the top end of the sliding groove (5021), the sliding groove (5021) and the horizontal groove (5022) are in smooth transition, the bending cylinder (503) is rotatably connected with the rack (1), and the bending cylinder (503) is used for driving the bending rod (501) to slide in the sliding groove (5021) and the horizontal groove (5022).

6. The automatic cutting machine for the protective films according to claim 1, further comprising a material supporting platform (6) for supporting the cut protective films, wherein the material supporting platform (6) is arranged at the rear of the cutting mechanism, a vertical guide post (7) is arranged on the machine frame (1) at a dead angle of the material supporting platform (6), the guide post (7) penetrates through the material supporting platform (6), two sides of the material supporting platform (6) are in threaded connection with vertical lifting screw rods (8), the lifting screw rods (8) are used for driving the material supporting platform (6) to slide up and down along the guide post (7), and the lifting screw rods are connected with a lifting motor (9) for driving the lifting screw rods to rotate.

7. The automatic cutting machine for the protection film according to claim 1, wherein the automatic cutting machine for the protection film is closed and comprises a closed bin body (10), a bin gate (11) is arranged on the bin body (10), and a discharge gate (12) is arranged at a position opposite to a discharge roller (201).

8. The automatic cutting machine for protective film according to claim 7, wherein a filter is provided at the top end of the bin body (10).

9. The automatic cutting machine for protective film according to claim 7, further comprising an ion wind bar (13), wherein the ion wind bar (13) is disposed below the discharging roller (201).

Technical Field

The invention relates to the technical field of protective film processing equipment, in particular to an automatic cutting machine for a protective film.

Background

Because the backlight module has the characteristics of high brightness, long service life, uniform light emission and the like, the backlight module is widely used in the liquid crystal industry at present, and along with the continuous development of the liquid crystal display technology, the yield of the backlight module is in the market stage that the yield is not required. Backlight unit adopts the protection film to cover the packing usually, and the cleanliness factor of protection film has great influence to backlight unit's yield, in order to reduce the foreign matters such as dirty and the dust in protection film surface, needs cut the protection film and carry out the cleanliness factor management and control. In order to facilitate the easy tearing of the subsequent protective film from the backlight module, the protective film is usually folded on one side of the protective film, and the manual folding is needed after the protective film cutting machine in the current backlight module industry finishes cutting or the manual folding is adopted, so that the time and labor are wasted, the production efficiency is low, the cutting environment cannot be effectively controlled, and the production cost is increased.

Disclosure of Invention

The invention provides an automatic cutting machine for a protective film, which has the advantages of realizing cutting and edge folding of the protective film, optimizing the process, reducing the human input and improving the production efficiency.

The invention aims to realize the technical scheme that the automatic protective film cutting machine comprises a rack and further comprises

The discharging mechanism comprises a discharging roller and two feeding rollers, the discharging roller and the feeding rollers are both horizontally arranged on the rack, the discharging roller is used for placing the rolled protective film, and the protective film pulled out of the rolled protective film extends out of the space between the two feeding rollers;

the clamping mechanism comprises a pneumatic clamping hand for clamping the protective film, a front pressing plate and a rear pressing plate for pressing the protective film, clamping slide rails perpendicular to the direction of the feeding roller are arranged on the rack, the clamping slide rails are provided with two parallel groups, clamping frames cross over the two groups of clamping slide rails, the pneumatic clamping hand is mounted on the clamping frames, synchronous belts are arranged on the clamping slide rails, the synchronous belts are connected with the clamping frames and used for driving the clamping frames to move on the clamping slide rails, and the synchronous belts are connected with a clamping motor used for driving the synchronous belts to rotate; the front pressing plate and the rear pressing plate are arranged between the pneumatic clamping hand and the feeding roller, the front pressing plate is close to the feeding roller, the rear pressing plate is close to the pneumatic clamping hand, the front pressing plate is connected with a front cylinder for driving the front pressing plate to move up and down, the front pressing plate is installed and fixed on a piston rod of the front cylinder, the rear pressing plate is connected with a rear cylinder for driving the rear pressing plate to move up and down, the rear pressing plate is installed and fixed on a piston rod of the rear cylinder, the front cylinder and the rear cylinder are installed and fixed on a rack, a front lining plate and a rear lining plate are respectively arranged below the front pressing plate and the rear pressing plate, and the front pressing plate and the rear pressing plate respectively abut against the front lining plate and the rear lining plate when pressing the protective film;

the cutting mechanism comprises a cutting knife, the cutting knife is used for cutting the protective film, the cutting knife is arranged between the front pressing plate and the rear pressing plate, a horizontal cutting slide rail is arranged on the rack, the direction of the cutting slide rail is parallel to the clamping frame, a knife rest of the cutting knife is connected onto the cutting slide rail in a sliding mode, a cutting lead screw is arranged on the cutting slide rail, the cutting lead screw is in threaded connection with the knife rest, and the cutting lead screw is connected with a cutting motor used for driving the cutting lead screw to rotate;

the bending mechanism comprises a bending rod, the bending rod is parallel to the cutting slide rail, the bending rod is arranged between the front pressing plate and the rear pressing plate, guide seats are arranged at positions, located at two ends of the bending rod, on the rack, vertical slide grooves are formed in the guide seats, the end portions of the bending rod extend into the slide grooves, bending air cylinders are further arranged on the rack, and piston rods of the bending air cylinders are connected with the bending rod and used for driving the bending rod to move up and down in the slide grooves.

According to the technical scheme, the discharging mechanism is used for placing the protective film, the clamping mechanism is used for opening and fixing the coiled protective film, the cutting mechanism is used for cutting the protective film, the bending mechanism is used for bending one side of the protective film, and the protective film is processed by the mechanism and then is cut and folded. Specifically, the work flow of the automatic cutting machine for the protective film is as follows: the rolled protective film is placed on a discharge roller, and a single protective film is initially pulled out of the rolled protective film by hand and passed between two feed rollers, which are used to protect the protective film from scratches due to collision with other mechanisms. The protective film stops after being pulled out to the lower side of the front pressing plate, the bending mechanism acts at the moment, the bending cylinder drives the bending rod to move upwards along the sliding groove to turn over one side of the protective film to form a folded edge, and then the bending rod returns to the original position. The clamping motor works to drive the synchronous belt to rotate, the synchronous belt drives the clamping frame to move towards the direction of the protective film, when the pneumatic clamping hand moves to the position of the protective film, the protective film is clamped and kept by the action of the pneumatic clamping hand, the clamping motor reverses at the moment, the protective film is pulled by the pneumatic clamping hand to move backwards, when the protective film moves to a specified position, the front cylinder and the rear cylinder act, the front pressing plate and the rear pressing plate both move downwards to respectively abut against the front lining plate and the rear lining plate, and the protective film is located below the front pressing plate and the rear pressing plate and above the front lining plate and the rear lining plate and is clamped and kept. After the protective film is compressed, the cutting motor works to drive the cutting knife to move on the cutting slide rail, the cutting knife cuts the protective film, the cutting of the protective film is completed after the cutting knife is formed, and the cutting motor rotates reversely to send the cutting knife back to the original position. After the protective film is cut, the rear air cylinder acts to lift the rear pressing plate, the material clamping motor works to control the pneumatic clamping hand to continue moving backwards, the pneumatic clamping hand pulls the cut protective film to move backwards, the pneumatic clamping hand acts to release the protective film after the protective film is moved in place, and the protective film falls down to finish cutting. The action of the front-mounted air cylinder is controlled to lift the front-mounted pressing plate, the actions are repeated to finish continuous edge folding and cutting of the protective film, the process is optimized, the whole process is automatic, the manpower input is not needed, the working efficiency is high, and a large amount of production requirements can be met by one machine.

The invention is further provided that the three groups of the front pressing plates are arranged in an isosceles triangle shape.

Through above-mentioned technical scheme, three leading clamp plates that are isosceles triangle and arrange can effectively compress tightly the protection film, and when the protection film was pulled out, the leading clamp plate of three groups also can play fine guide effect to the protection film simultaneously for the protection film is comparatively level and smooth.

The invention is further provided that the two groups of rear pressing plates are symmetrically arranged on two sides of the frame.

Through above-mentioned technical scheme, the protection film that compresses tightly that two sets of rearmounted clamp plates can be better for the edge of protection film is difficult for the perk, through leading clamp plate and the compressing tightly of rearmounted clamp plate, cuts the difficult perk of sword protection film or play the pleat when cutting the protection film, guarantees good cutting quality.

The invention is further arranged in a way that a transmission shaft is arranged on the rack below the clamping slide rail and connected with a clamping motor through a belt, a belt wheel for supporting the synchronous belt is arranged in the synchronous belt, and the belt wheel is connected with the transmission shaft through the belt.

Through above-mentioned technical scheme, set up the transmission shaft and will cut the output power transmission of motor simultaneously and hold-in range on two sets of clamp material slide rails, make the action of two hold-in ranges synchronous, guarantee that the centre gripping frame can be parallel with the feed roll all the time at the removal in-process.

The invention is further arranged in that a horizontal groove in the horizontal direction is formed in the top end of the sliding groove, the sliding groove and the horizontal groove are in smooth transition, the bending cylinder is in rotary connection with the rack, and the bending cylinder is used for driving the bending rod to slide in the sliding groove and the horizontal groove.

Through above-mentioned technical scheme, when carrying out the hem to the protection film, the pole that bends slides in spout and horizontal groove, therefore the removal orbit of the pole that bends is for upwards moving earlier horizontal migration again, therefore the pole that bends easily lifts one side of protection film upwards and stirs to one side and easily forms this limit, reduces the defective rate.

The cutting machine is further provided with a material supporting platform for supporting the cut protective film, the material supporting platform is arranged behind the cutting mechanism, vertical guide posts are arranged at dead corners of the material supporting platform on the machine frame and penetrate through the material supporting platform, vertical lifting screw rods are connected to two sides of the material supporting platform in a threaded mode and used for driving the material supporting platform to slide up and down along the guide posts, and the lifting screw rods are connected with a lifting motor used for driving the lifting screw rods to rotate.

Through the technical scheme, the protective film is cut and then falls on the material supporting platform to be stored, the material supporting platform is driven to move up and down when the lifting motor acts, therefore, the height of the material supporting platform can be slowly reduced along with work, the stroke when each protective film is controlled to fall is small, the situations that the protective film is turned over or curled and the like when falling are avoided, the protective film on the material supporting platform is accumulated to a certain amount and then taken out together, and the protective film is guaranteed to have a better stacking state. And when the material supporting platform receives the protective film again, the material supporting platform is lifted to the original position.

The automatic protective film cutting machine is further arranged in a closed mode and comprises a closed bin body, a bin door is arranged on the bin body, and a discharging door is arranged at the position, opposite to the discharging roller, of the discharging roller.

Through above-mentioned technical scheme, seal and set up and to reduce the protection film in process of production and be polluted by the dust, guarantee the cleanliness of protection film, make it not influence perhaps to use, set up the door and be used for taking out the protection film and handle interim trouble, set up the blowing door and be used for placing the protection film of lapping to the blowing roller on.

The invention is further provided that the top end of the bin body is provided with a filter.

Through the technical scheme, the filter filters the air in the bin body, removes impurities in the bin body, and improves the cleanliness of the production environment.

The invention is further provided with an ion air bar which is arranged below the discharging roller.

Through above-mentioned technical scheme, the protection film of lapping can produce static after opening, and then leads to the curling of protection film to warp, sets up the ion wind stick and goes electrostatic treatment to the protection film after launching for the protection film is comparatively level and smooth.

In conclusion, the beneficial effects of the invention are as follows:

1. meanwhile, the work of cutting the protective film is finished, the production process is simplified, the whole process is automated, the labor input is reduced, and the production efficiency is improved;

2. when the protective film is cut, the protective film is compressed by the front pressing plate and the rear pressing plate, so that the cutting quality is high;

3. the material supporting platform is arranged to be liftable, so that the material supporting platform can continuously descend along with the production process, the protective film is not easy to roll up when falling on the material supporting platform, and the neatness is good.

Drawings

FIG. 1 is a front view of the present embodiment;

FIG. 2 is a plan view of the present embodiment;

FIG. 3 is a side view of the present embodiment;

FIG. 4 is an internal view of the present embodiment, with portions of the housing hidden;

FIG. 5 is an enlarged view at A in FIG. 4;

FIG. 6 is a partial view of the present embodiment;

fig. 7 is a schematic view of the front platen in the present embodiment.

In the figure, 1, a frame; 201. a discharge roller; 202. a feed roller; 301. a pneumatic gripper; 302. a front pressing plate; 303. a pressure plate is arranged at the rear; 304. a material clamping slide rail; 305. a clamping frame; 306. a synchronous belt; 307. a material clamping motor; 308. a front cylinder; 309. a rear cylinder; 310. a front lining plate; 311. a lining plate is arranged at the rear; 312. a drive shaft; 313. a pulley; 401. cutting knife; 402. a tool holder; 403. cutting a sliding rail; 404. cutting a screw rod; 501. bending the rod; 502. a guide seat; 5021. a chute; 5022. a horizontal groove; 503. bending the air cylinder; 6. a material supporting platform; 7. a guide post; 8. a lifting screw rod; 9. a lifting motor; 10. a bin body; 11. a bin gate; 12. a discharge door; 13. an ion wind rod.

Detailed Description

The following detailed description of embodiments of the invention refers to the accompanying drawings.