Film tearing equipment

Abstract

The utility model discloses film tearing equipment, which belongs to the technical field of film tearing equipment and is characterized in that the film tearing equipment comprises a base, the top of the base is fixedly connected with a workbench, the front side of the workbench is provided with a PLC (programmable logic controller), and the top of the workbench is provided with a moving plate; a preheating assembly and a film tearing assembly are arranged at the bottom of the moving plate, the film tearing assembly comprises an adsorption disc, the preheating assembly is arranged, the preheating assembly can preheat an area to be subjected to film tearing, the viscosity of a protective film and an adhesive on the surface of a product is reduced, the protective film is separated from the product more easily, resistance during film tearing is remarkably reduced, and the film tearing efficiency is improved. By arranging the film tearing assembly, the surface of the protective film can be evenly adsorbed through negative pressure generated by the vacuum pump, and the situation that the protective film is torn due to uneven single-point stress is avoided, so that the film tearing device can be suitable for the large-area protective film, stable and reliable adsorption is ensured, and the film tearing effect is further improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tear film equipment technical field especially relates to a tear film equipment. BACKGROUND

[0002] In the modern industrial production process, many product surfaces need to be covered with protective film during processing, transportation or storage to prevent surface scratches, contamination or oxidation, and after the product is finished processing or assembly, the protective film needs to be peeled off. Currently, the common tear film methods mainly include manual tear film and mechanical tear film.

[0003] During the processing and production of computer display screens, the surface screen and the bottom screen need to be bonded. The surface screen and the bottom screen will have a layer of protective film attached to their surfaces after production is completed. This layer of protective film needs to be removed before bonding, and then the step of gluing and attaching is performed. In existing equipment, manual removal is usually required, and then it is placed in a cleaning and gluing device for production and processing. Such manual removal is not only time-consuming and labor-intensive, but also prone to damage to the display screen during multiple picking and placing processes.

[0004] The existing patent (publication number: CN218807138U) is a tear film device for computer screen production. The protective film on the surface of the display screen can be clamped by setting a clamping mechanism, and then it is lifted. The first driving mechanism can drive the clamping mechanism to perform a left-to-right tearing action while the clamping mechanism is rising, thereby completing the entire tearing step. This setup can achieve automated processing and can be synchronized with subsequent cleaning and dispensing steps on the same conveyor belt. This setup not only saves a lot of manpower and resources, but also avoids damage to the screen caused by repeated picking and placing.

[0005] To address the above problems, the existing patent provides a solution. However, the tear film equipment described above uses a direct clamping method to peel off the protective film. However, for highly adhesive protective films, a lack of preheating and softening treatment can result in excessive adhesion between the protective film and the product surface, increasing the difficulty of tearing the film and leading to low tear film efficiency. In the tearing process, excessive force can easily damage the product surface, thereby seriously affecting product quality and yield.

[0006] Therefore, a tear film equipment is proposed. SUMMARY

[0007] The utility model discloses a purpose at, provide a kind of film tearing equipment, can solve the film tearing equipment of existing lack of preheating softening treatment, directly tear film can make the adhesion between protective film and product surface too big, not only increase the film tearing difficulty, lead to film tearing inefficiency, and in the tearing process, excessive external force is extremely easy to cause product surface damage, thereby seriously affect product quality and good product rate Problem.

[0008] To achieve the above object, the utility model provides the following technical scheme: a kind of film tearing equipment, including base, the top of the base is fixedly connected with workbench, the front side of the workbench is provided with PLC controller, the top of the workbench is provided with moving plate, the bottom of the moving plate is provided with preheating component and film tearing component respectively, the film tearing component includes adsorption disc;

[0009] The preheating component includes first electric push rod, the first electric push rod is fixedly connected at the front side of the bottom of mounting plate, the telescopic end of the first electric push rod is fixedly connected with support frame, the inside of the support frame is fixedly connected with mounting plate, the top of the mounting plate is fixedly connected with hot air blower, the output end of the hot air blower is fixedly communicated with connecting pipe, the bottom end of the connecting pipe is fixedly communicated with horizontal pipe, the horizontal pipe is fixedly connected in the inside of support frame, the bottom of the surface of the horizontal pipe is fixedly communicated with a plurality of spray heads.

[0010] Preferably, the bottom of the adsorption disc is provided with a first suction hole, and the number of the first suction hole is multiple, the adsorption disc is arranged on the mounting plate and located at the rear side of the spray head.

[0011] Preferably, the rear side of the bottom of the mounting plate is fixedly connected with a second electric push rod, and the top of the adsorption disc is fixedly connected with the telescopic end of the second electric push rod.

[0012] Preferably, the rear side of the adsorption disc is fixedly communicated with a metal bellows, the other end of the metal bellows penetrates through the workbench and is fixedly connected with a vacuum pump, and the vacuum pump is fixedly connected to the top of the base.

[0013] Preferably, the inside of the top of the workbench is fixedly connected with a fixing cavity, the top of the fixing cavity is provided with a second suction hole, and the number of the second suction hole is multiple.

[0014] Preferably, the bottom of the fixing cavity is fixedly communicated with a branch pipe, the other end of the branch pipe is fixedly communicated with the metal bellows, and the inside of the branch pipe close to the rubber end of the metal bellows is provided with a control valve.

[0015] Preferably, the top of the workbench is fixedly connected with a side plate on both sides, and the opposite side of the two side plates is provided with a groove, the inside of the left groove is rotatably connected with a threaded rod through a bearing, the front end of the threaded rod is fixedly connected with a servo motor, and the inside of the right groove is fixedly connected with a sliding rod.

[0016] Preferably, the surface of the threaded rod is threaded with a threaded block, and the surface of the slide rod is slidably connected with a slider, the threaded block and the slider being fixedly connected to both sides of the movable plate respectively.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application incorporates a preheating component, which preheats the area to be peeled, thereby reducing the adhesion between the protective film and the product surface, making it easier for the protective film to separate from the product and significantly reducing the resistance during peeling.

[0019] 2. By setting up a film-tearing component, the negative pressure generated by the vacuum pump can uniformly adsorb the surface of the protective film, avoiding uneven force at a single point that could cause the protective film to tear. This makes it suitable for large-area protective films, ensuring stable and reliable adsorption and further improving the film-tearing effect. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the film-tearing device of this utility model;

[0021] Figure 2 This utility model Figure 1 The left view;

[0022] Figure 3 This utility model Figure 1 The right view;

[0023] Figure 4 This is a schematic diagram showing the connection of the movable plate, preheating component, and film-removing component of this utility model;

[0024] Figure 5 This is a schematic diagram of the preheating component of this utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the film-tearing assembly of this utility model.

[0026] In the diagram, 1. Base; 2. Workbench; 3. PLC controller; 4. Moving plate; 5. Preheating assembly; 501. First electric push rod; 502. Support frame; 503. Mounting plate; 504. Hot air blower; 505. Connecting pipe; 506. Horizontal pipe; 507. Nozzle; 6. Film peeling assembly; 601. Adsorption plate; 602. First suction hole; 603. Second electric push rod; 604. Metal corrugated pipe; 605. Vacuum pump; 7. Fixed cavity; 8. Second suction hole; 9. Branch pipe; 10. Side plate; 11. Groove; 12. Threaded rod; 13. Servo motor; 14. Slide rod; 15. Threaded block; 16. Slider. Detailed Implementation

[0027] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0028] Please refer to Figures 1-6 The present application provides a technical scheme:

[0029] A film tearing device, comprising a base 1, the top of the base 1 is fixedly connected with a workbench 2, the front side of the workbench 2 is provided with a PLC controller 3, the top of the workbench 2 is provided with a moving plate 4, the bottom of the moving plate 4 is respectively provided with a preheating assembly 5 and a film tearing assembly 6, the film tearing assembly 6 comprises a suction disc 601;

[0030] The preheating assembly 5 comprises a first electric push rod 501, the first electric push rod 501 is fixedly connected to the front side of the bottom of the mounting plate 503, the telescopic end of the first electric push rod 501 is fixedly connected with a support frame 502, the inside of the support frame 502 is fixedly connected with the mounting plate 503, the top of the mounting plate 503 is fixedly connected with a hot air blower 504, the output end of the hot air blower 504 is fixedly communicated with a connecting pipe 505, the bottom end of the connecting pipe 505 is fixedly communicated with a horizontal pipe 506, the horizontal pipe 506 is fixedly connected to the inside of the support frame 502, and the bottom of the surface of the horizontal pipe 506 is fixedly communicated with a plurality of nozzles 507.

[0031] In the present embodiment: by setting the preheating assembly 5, the first electric push rod 501 can flexibly drive the whole preheating assembly 5 to move up and down, adjust the distance between the nozzles 507 and the protective film, so as to adapt to different heating requirements, the support frame 502 can provide support for the plurality of components of the preheating assembly 5, ensure that the preheating assembly 5 can stably operate, the mounting plate 503 can provide support for the hot air blower 504, the hot air blower 504 can heat the air to a set temperature through an electric heating element, and generate a directional air flow through a fan, the connecting pipe 505 can guide the hot air output by the hot air blower 504 to the horizontal pipe 506, and the horizontal pipe 506 can uniformly deliver the hot air to each nozzle 507, the nozzle 507 will focus the hot air to spray to the surface of the protective film, and the setting of the plurality of nozzles 507 can improve the preheating area and ensure that there is no blind area for heating.

[0032] Specifically, as shown in Figure 4 , Figure 6 The bottom of the suction disc 601 is provided with a first suction hole 602, and the number of the first suction holes 602 is set to be multiple, the suction disc 601 is arranged on the mounting plate 503 and located at the rear side of the nozzles 507.

[0033] Specifically, as shown in Figure 6 The bottom of the mounting plate 503 is fixedly connected with a second electric push rod 603 on the rear side, and the top of the adsorption disc 601 is fixedly connected with the telescopic end of the second electric push rod 603.

[0034] Specifically, as shown in Figure 4 , Figure 6 The rear side of the adsorption disc 601 is fixedly connected with a metal bellows 604, the other end of the metal bellows 604 penetrates the workbench 2 and is fixedly connected with a vacuum pump 605, and the vacuum pump 605 is fixedly connected to the top of the base 1.

[0035] In this embodiment: through the above setting, the adsorption disc 601 can adsorb the surface of the protective film material through the negative pressure generated by the suction hole to form a grabbing force, the second electric push rod 603 can drive the adsorption disc 601 to vertically ascend and descend, so that the adsorption disc 601 can be precisely attached to the top of the protective film, the vacuum pump 605 can form a vacuum in the adsorption disc 601 through air suction, so that the suction hole generates adsorption force, and the metal bellows 604 allows the adsorption disc 601 to keep the air path of the vacuum pump 605 and the adsorption disc 601 connected when the adsorption disc 601 moves up and down with the second electric push rod 603, ensuring air tightness, and facilitating subsequent film tearing.

[0036] Specifically, as shown in Figure 1 The top of the workbench 2 is fixedly connected with a fixed cavity 7 inside, and the top of the fixed cavity 7 is provided with a plurality of second suction holes 8.

[0037] Specifically, as shown in Figure 3 The bottom of the fixed cavity 7 is fixedly connected with a branch pipe 9, the other end of the branch pipe 9 is fixedly connected with the metal bellows 604, and the inside of the branch pipe 9 close to the rubber end of the metal bellows 604 is provided with a control valve.

[0038] In this embodiment: through the above setting, the negative pressure generated by the second suction hole 8 can adsorb and fix the product on the top of the workbench 2, avoiding displacement or shaking of the product during film tearing, improving film tearing precision, and the uniform distribution of the plurality of second suction holes 8 can balance the stress on the product, while covering most of the area of the workbench 2, compatible with products of different sizes, improving applicability, the branch pipe 9 can be connected with the metal bellows 604, so that it can share the negative pressure source with the film tearing assembly 6, without the need for additional configuration of the vacuum pump 605, simplifying the equipment structure and reducing the cost, and the control valve can independently control the opening state of the negative pressure of the fixed cavity 7, improving the flexibility of use.

[0039] Specifically, as shown in Figure 1 , Figure 2As shown, the top of the workbench 2 is fixedly connected with side plates 10 on both sides, and the opposite side of each side plate 10 is provided with a groove 11. A threaded rod 12 is rotatably connected to the inside of the left groove 11 through a bearing, and the front end of the threaded rod 12 is fixedly connected with a servo motor 13. A sliding rod 14 is fixedly connected to the inside of the right groove 11.

[0040] Specifically, as shown in Figure 1 、 Figure 2 the surface of the threaded rod 12 is threadedly connected with a threaded block 15, and the surface of the sliding rod 14 is slidingly connected with a sliding block 16. The threaded block 15 and the sliding block 16 are fixedly connected to the two sides of the moving plate 4, respectively.

[0041] In this embodiment: through the above setting, the groove 11 can provide installation space for the threaded rod 12 and the sliding rod 14. When the servo motor 13 drives the threaded rod 12 to rotate, the threaded block 15 will move along the axial direction of the threaded rod 12, so that the moving plate 4, the preheating assembly 5 and the film tearing assembly 6 can be driven to move along the horizontal direction, thereby realizing the film tearing work of the protective film. The sliding rod 14 can limit the movement track of the sliding block 16 and the moving plate 4, so as to ensure that the moving plate 4 can always move accurately along the straight track, thereby improving the stability during movement.

[0042] Working principle: first, the operator places the product to be torn off the film above the fixed cavity 7 of the workbench 2, and then opens the control valve through the PLC controller 3, so that the vacuum pump 605 can provide negative pressure for the adsorption disc 601 and the fixed cavity 7. Then the second suction hole 8 at the top of the fixed cavity 7 generates negative pressure, tightly adsorbing the product on the top of the workbench 2 to prevent displacement during the film tearing process. Then the servo motor 13 is started through the PLC controller 3, which drives the threaded rod 12 to rotate. When the threaded rod 12 rotates, it drives the moving plate 4 to move along the axial direction of the threaded rod 12 to the preheating starting point. Then the first electric push rod 501 is elongated to push the support frame 502 and the nozzle 507 close to the protective film. Then the air heater 504 is started, and the hot air flow generated by the air heater 504 is delivered to the nozzle 507 through the connecting pipe 505 and the transverse pipe 506. Multiple nozzles 507 simultaneously spray hot air flow to the surface of the protective film, so that the surface of the protective film is uniformly heated, reducing the adhesion of the adhesive. After preheating, the moving plate 4 continues to move along the axial direction of the threaded rod 12, so that the adsorption disc 601 is aligned with the starting position of the protective film to be torn off. Then the second electric push rod 603 is elongated, and the adsorption disc 601 is lowered to the surface of the protective film. The first suction hole 602 at the bottom of the adsorption disc 601 generates negative pressure, thereby firmly adsorbing the protective film. Finally, the threaded rod 12 drives the moving plate 4 to continue to move horizontally, and the adsorption disc 601 moves with the moving plate 4. When moving, the protective film can be torn off. When the protective film is completely peeled off, the vacuum pump 605 stops supplying air to the adsorption disc 601, and the protective film falls off from the adsorption disc 601.

[0043] The above merely describes the preferred embodiments of the present application, and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A film tearing apparatus comprising a base (1), characterised in that: The top of the base (1) is fixedly connected with a workbench (2), the front side of the workbench (2) is provided with a PLC controller (3), the top of the workbench (2) is provided with a moving plate (4), the bottom of the moving plate (4) is respectively provided with a preheating assembly (5) and a film tearing assembly (6), and the film tearing assembly (6) comprises a suction disc (601). The preheating assembly (5) comprises a first electric push rod (501), the first electric push rod (501) is fixedly connected to the front side of the bottom of the mounting plate (503), the telescopic end of the first electric push rod (501) is fixedly connected with a support frame (502), the inside of the support frame (502) is fixedly connected with the mounting plate (503), the top of the mounting plate (503) is fixedly connected with a hot air blower (504), the output end of the hot air blower (504) is fixedly connected with a connecting pipe (505), the bottom end of the connecting pipe (505) is fixedly connected with a transverse pipe (506), the transverse pipe (506) is fixedly connected to the inside of the support frame (502), and the surface of the transverse pipe (506) is fixedly connected with a plurality of nozzles (507).

2. A film tearing apparatus as claimed in claim 1, wherein: A first suction hole (602) is formed in the bottom of the suction disc (601), and the number of the first suction hole (602) is multiple, the suction disc (601) is arranged on the mounting plate (503), and the suction disc (601) is located at the rear side of the nozzle (507).

3. The film tearing apparatus of claim 1, wherein: The bottom of the mounting plate (503) is fixedly connected with a second electric push rod (603), and the top of the suction disc (601) is fixedly connected with the telescopic end of the second electric push rod (603).

4. The film tearing apparatus of claim 1, wherein: The rear side of the suction disc (601) is fixedly connected with a metal bellows (604), the other end of the metal bellows (604) penetrates through the workbench (2) and is fixedly connected with a vacuum pump (605), and the vacuum pump (605) is fixedly connected to the top of the base (1).

5. A film tearing apparatus as claimed in claim 4, wherein: The inside of the top of the workbench (2) is fixedly connected with a fixing cavity (7), a second suction hole (8) is formed in the top of the fixing cavity (7), and the number of the second suction hole (8) is multiple.

6. A film tearing apparatus as claimed in claim 5, wherein: The bottom of the fixing cavity (7) is fixedly connected with a branch pipe (9), the other end of the branch pipe (9) is fixedly connected with the metal bellows (604), and the inside of the rubber end of the branch pipe (9) close to the metal bellows (604) is provided with a control valve.

7. The film tearing apparatus of claim 1, wherein: The top of the workbench (2) is fixedly connected with side plates (10) on both sides, and recesses (11) are formed in the opposite sides of the two side plates (10), a threaded rod (12) is rotatably connected to the inside of the left recess (11) through a bearing, a front end of the threaded rod (12) is fixedly connected with a servo motor (13), and a slide rod (14) is fixedly connected to the inside of the right recess (11).

8. A film tearing apparatus as claimed in claim 7, wherein: The surface of the threaded rod (12) is threadedly connected with a threaded block (15), the surface of the slide rod (14) is slidably connected with a sliding block (16), and the threaded block (15) and the sliding block (16) are fixedly connected to the two sides of the moving plate (4) respectively.

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