Device for pasting EVA foam on LCD screen of remote controller

Abstract

The utility model relates to the technical field of remote controller production, in particular to a device for sticking EVA (ethylene vinyl acetate) foam on an LCD (liquid crystal display) screen of a remote controller, which comprises a machine table provided with an unwinding mechanism, a sucking and sticking mechanism, a cotton supply mechanism and a winding mechanism. A jig is installed above the machine table through an adjustable base, and the jig is provided with a containing opening used for containing an LCD screen. Two long and thin EVA foam strips are cut off pairwise and then spliced, the pasting efficiency and the stability of the device are effectively improved through a material rolling and feeding mode and a feeding, sucking and pasting mode, the supplied material cost is not increased, the design of the three adsorption units is adopted, three pairs of EVA foam strips can be pasted at a time, and the production efficiency is improved. The production efficiency is improved by several times compared with the manual efficiency, and the requirement for attaching consistency is effectively met.

Description

Technical Field

[0001] The utility model relates to the technical field of remote control production, in particular to a device for pasting EVA foam on the LCD screen of a remote control. Background Art

[0002] In the current production and manufacturing process of remote control products, in order to ensure that the LCD display screen is not damaged when suffering from accidental drops or other impacts, a method of pasting a layer of EVA foam on the LCD screen as a protective layer is generally adopted. EVA foam is selected because of its excellent cushioning performance, but in actual application, its design and pasting process face many challenges.

[0003] Specifically, in order to adapt to the compact product structure of the remote control, the existing EVA foam design has to be made very thin and slender in shape, which requires precise pasting along the two side edges of the LCD screen during pasting. This technological requirement is mainly achieved through manual operation in the existing technology, that is, the operator needs to carefully pick up these slender EVA foam strips with tweezers and then carefully align them with the edge of the LCD screen for pasting.

[0004] This manual pasting method has the following deficiencies: First, the production efficiency is extremely low because each EVA foam strip needs to be picked up and pasted individually, which takes a long time; Second, due to the repetition of the operation, the operator is prone to fatigue, which not only affects the work efficiency but also may lead to operation errors.

[0005] Therefore, in order to further improve the applicability and efficiency of the existing EVA foam pasted on the LCD screen, we propose a device for pasting EVA foam on the LCD screen of a remote control. Content of the Utility Model

[0006] The purpose of the utility model is to solve the problems such as extremely low production efficiency in the existing technology, and to propose a device for pasting EVA foam on the LCD screen of a remote control.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] Design a device for pasting EVA foam on the LCD screen of a remote control, including a machine table, on which a unwinding mechanism, a suction and cotton pasting mechanism, a cotton supply mechanism and a winding mechanism are arranged;

[0009] Among them, a jig is installed above the machine table through an adjustable base, and the jig is provided with a placement opening for placing the LCD screen;

[0010] The suction and cotton pasting mechanism moves up and down above the jig, and the cotton supply mechanism moves horizontally below the suction and cotton pasting mechanism to realize feeding.

[0011] Further, the cotton feeding mechanism includes a fixed seat installed above the machine table. A pushing cylinder is fixed below the fixed seat. A feeding platform is fixedly installed at the shaft end of the pushing cylinder. A deflecting roller is rotatably connected to the bottom of the feeding platform.

[0012] Further, a stop cylinder is also fixedly installed on the machine table. A pressing plate is fixedly installed at the shaft end of the stop cylinder. The pressing plate abuts above the fixed seat.

[0013] Further, the sucking and cotton pasting mechanism includes a bracket installed on the machine table, a driving member fixed on the bracket, and a mounting seat slidably arranged on the bracket. The driving member is used to drive the mounting seat to lift and lower;

[0014] Wherein, a suction unit is arranged below the mounting seat.

[0015] Further, three suction units are provided. The suction unit in the middle is fixedly connected to the mounting seat. The suction units on both sides are slidably connected to the mounting seat. Wherein, two cylinders are also fixedly installed on the mounting seat. The shaft ends of the two cylinders are respectively connected to the two slidable suction units.

[0016] Further, the suction unit includes a hollow seat. A plurality of suction cups are installed and communicated along a straight line on the lower side of the hollow seat. The hollow seat is connected to an external negative pressure device through a pipeline.

[0017] Further, each suction unit adsorbs two EVA foam strips and simultaneously pastes them above the adjacent sides of two adjacent LCD screens.

[0018] The device for pasting EVA foam strips on the LCD screen of a remote control proposed by the present utility model has the beneficial effects that: in the present utility model, by cutting two slender EVA foam strips in pairs and then splicing them, through the method of incoming material in rolls, through the methods of feeding, sucking and pasting, the pasting efficiency and the stability of the equipment are effectively improved without increasing the incoming material cost. Secondly, with the design of three suction units, it is possible to paste three pairs of EVA foam strips at one time, that is, three pairs of slender EVA foam strips, so that the production efficiency is several times higher than that of manual work, and the consistency requirements for pasting are effectively guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a three-dimensional Figure 1 ;

[0020] Figure 2 is a three-dimensional Figure 2 ;

[0021] Figure 3 is Figure 2Schematic diagram of the enlarged structure of area A;

[0022] Figure 4 Schematic diagram of the adsorption unit structure of the present utility model;

[0023] Figure 5 Schematic diagram of the EVA foam tape structure of the present utility model.

[0024] In the figure: 1, machine platform; 2, unwinding mechanism; 3, sucking and cotton pasting mechanism; 31, bracket; 32, driving part; 33, mounting seat; 34, adsorption unit; 35, cylinder; 4, cotton supply mechanism; 41, fixed seat; 42, pushing cylinder; 43, feeding platform; 44, deflecting roller; 45, stop cylinder; 46, pressing plate; 5, winding mechanism; 6, adjustable base; 7, jig. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0026] Refer to Figures 1-5 As an embodiment of the present utility model, it discloses a device for pasting EVA foam on the LCD screen of a remote control, including a machine platform 1, the machine platform 1 includes a base and a control box, and an unwinding mechanism 2, a sucking and cotton pasting mechanism 3, a cotton supply mechanism 4 and a winding mechanism 5 are arranged on the machine platform 1. Specifically, each of the above structures is installed on one side of the control box. In addition, the unwinding mechanism 2 and the winding mechanism 5 are conventional technical means for those skilled in the art. For example, driving the winding reel to rotate by a motor and cooperating with several guiding rollers can achieve this, so it will not be elaborated here;

[0027] Wherein, a jig 7 is installed above the machine platform 1 through an adjustable base 6, and the jig 7 is provided with a placement opening for placing the LCD screen. Specifically, in this embodiment, the adjustable base 6 is set as a three-axis fine adjustment platform, which can realize the position adjustment of the jig 7 in the X, Y, and R directions. For example, the model can be selected as the three-axis moving platform LS60-LM, which is prior art and will not be elaborated here;

[0028] The sucking and cotton pasting mechanism 3 moves up and down above the jig 7, and the cotton supply mechanism 4 moves horizontally below the sucking and cotton pasting mechanism 3 to realize feeding.

[0029] In some embodiments, the cotton feeding mechanism 4 in the present utility model includes a fixed seat 41 installed above the machine table 1. A pushing cylinder 42 is fixed below the fixed seat 41. A feeding platform 43 is fixedly installed at the shaft end of the pushing cylinder 42. The bottom of the feeding platform 43 is rotatably connected with a deflector roller 44. That is, during operation, the pushing cylinder 42 drives the feeding platform 43 below the sucking and cotton pasting mechanism 3. The sucking and cotton pasting mechanism 3 takes the EVA foam on the feeding platform 43. After taking, the pushing cylinder 42 drives the feeding platform 43 to retract and reset to avoid interfering with the up and down movement of the sucking and cotton pasting mechanism 3.

[0030] Of course, considering avoiding pulling the EVA foam roll during the telescopic movement of the feeding platform 43, in this embodiment, a stop cylinder 45 is also fixedly installed on the machine table 1. A pressing plate 46 is fixedly installed at the shaft end of the stop cylinder 45. The pressing plate 46 abuts above the fixed seat 41. That is, when the feeding platform 43 makes a telescopic movement, the stop cylinder 45 can be used to drive the pressing plate 46 to press down and abut the tape on the fixed seat 41 to avoid the situation of pulling and moving the tape.

[0031] In some embodiments, the sucking and cotton pasting mechanism 3 in the present utility model includes a bracket 31 installed on the machine table 1, a driving member 32 fixed on the bracket 31, and a mounting seat 33 slidably arranged on the bracket 31. The driving member 32 is used to drive the mounting seat 33 to move up and down. Specifically, in this embodiment, the driving member 32 is also set as a cylinder. The mounting seat 33 is slidably connected to the bracket 31 through a slider and a guide rail assembly. Of course, the shaft end of the above cylinder is connected to the mounting seat 33 to adjust the height of the mounting seat 33 through the telescopic movement of the shaft end of the cylinder.

[0032] Among them, a suction unit 34 is arranged below the mounting seat 33.

[0033] Based on the above embodiments, in this embodiment, three suction units 34 are provided. The middle suction unit 34 is fixedly connected to the mounting seat 33, and the two suction units 34 on both sides are slidably connected to the mounting seat 33. Among them, two cylinders 35 are also fixedly installed on the mounting seat 33, and the shaft ends of the two cylinders 35 are respectively connected to the two sliding suction units 34.

[0034] It should be noted that in this embodiment, each suction unit 34 adsorbs two EVA foams and simultaneously adheres them above the adjacent sides of two adjacent LCD screens. Among them, four LCD screens can be placed on the jig 7 in this embodiment. By adopting the pasting method in this case, the EVA foams can be simultaneously adhered to the contact positions between the four LCD screens to improve the cotton pasting efficiency.

[0035] As Figure 5 shown, specifically, in this embodiment, three rows of EVA foam pairs are arranged along the length direction on the material roll. The EVA foam pairs are arranged at intervals, and each EVA foam pair is composed of two spaced EVA foams, so that each adsorption unit 34 can adsorb two EVA foams at a time.

[0036] That is to say, in this embodiment, by adopting the design of three adsorption units 34, three pairs of EVA foam strips can be pasted at one time, that is, 6 soft and thin EVA foam strips, which improves the production efficiency several times that of manual work, and effectively ensures the consistency requirements of pasting. The adsorption units 34 on both sides adopt the method of driving variable distance by the cylinder 35, making the distance of the coil material smaller, effectively using the raw material of the EVA foam, and not wasting the waste area generated by making the coil, effectively reducing the cutting cost. At the same time, the variable distance adjustment structure can also achieve better adjustment and adaptation ability to meet the distance adjustment requirements in actual assembly and production, and has strong applicability.

[0037] On the basis of the above embodiment, in this embodiment, the adsorption unit 34 includes a hollow seat. A plurality of suction cups are installed and communicated along a straight line on the lower side of the hollow seat. The hollow seat is connected to an external negative pressure device through a pipeline. During operation, the negative pressure inside the hollow seat is conducted to the suction cups to adsorb a pair of EVA foam strips, and after the position of the suction and cotton pasting mechanism 3 is changed, it is pasted on the LCD screen to complete the entire pasting process.

[0038] In summary, in the present utility model, by cutting two slender EVA foam strips in pairs and then splicing them, through the coil material feeding method, through the feeding, suction and pasting methods, the pasting efficiency and the stability of the equipment are effectively improved without increasing the feeding cost.

[0039] The above is only a preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A device for attaching EVA foam to a remote control LCD screen, comprising a machine (1), characterized in that: The machine platform (1) is provided with an unwinding mechanism (2), a cotton suction and sticking mechanism (3), a cotton supply mechanism (4) and a winding mechanism (5); A jig (7) is installed above the machine platform (1) via an adjustable base (6), and the jig (7) is provided with a placement opening for placing an LCD screen; The suction and cotton sticking mechanism (3) moves up and down above the jig (7), and the cotton feeding mechanism (4) moves laterally below the suction and cotton sticking mechanism (3) to achieve material feeding.

2. The device for attaching EVA foam to a remote control LCD screen according to claim 1, characterized in that: The cotton feeding mechanism (4) comprises a fixed seat (41) mounted above the machine platform (1), a pushing cylinder (42) is fixed below the fixed seat (41), a feeding platform (43) is fixedly mounted on the shaft end of the pushing cylinder (42), and a direction-changing roller (44) is rotatably connected to the bottom of the feeding platform (43).

3. The device for attaching EVA foam to a remote control LCD screen according to claim 2, characterized in that: A stop cylinder (45) is also fixedly mounted on the machine platform (1), and a pressure plate (46) is fixedly mounted on the shaft end of the stop cylinder (45), wherein the pressure plate (46) abuts against the top of the fixing seat (41).

4. The device for attaching EVA foam to a remote control LCD screen according to claim 1, characterized in that: The suction and cotton sticking mechanism (3) comprises a bracket (31) mounted on the machine platform (1), a driving member (32) fixed on the bracket (31), and a mounting seat (33) sliding on the bracket (31), wherein the driving member (32) is used to drive the mounting seat (33) to rise and fall; Wherein, an adsorption unit (34) is arranged below the mounting seat (33).

5. The device for attaching EVA foam to a remote control LCD screen according to claim 4, characterized in that: Three adsorption units (34) are provided, the adsorption unit (34) located in the middle is fixedly connected to the mounting seat (33), and the adsorption units (34) on both sides are slidably connected to the mounting seat (33), wherein two cylinders (35) are also fixedly mounted on the mounting seat (33), and the shaft ends of the two cylinders (35) are respectively connected to the two sliding adsorption units (34).

6. The device for attaching EVA foam to a remote control LCD screen according to claim 4, characterized in that: The adsorption unit (34) comprises a hollow seat, and a plurality of suction cups are installed in a straight line and connected to each other on the lower side of the hollow seat, and the hollow seat is connected to an external negative pressure device via a pipeline.

7. A device for attaching EVA foam to a remote control LCD screen according to any one of claims 4 to 6, characterized in that: Each of the adsorption units (34) adsorbs two strips of EVA foam and is simultaneously attached to the upper adjacent sides of two adjacent LCD screens.

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