Hot pressing equipment for capacitive touch screen production

Abstract

The utility model discloses hot-pressing equipment for capacitive touch screen production, belongs to the technical field of touch screen production, and aims to solve the problems that a touch screen is easy to deviate during hot pressing of the hot-pressing equipment and the touch screen is easy to damage due to the fact that pressing force is directly conducted to the touch screen. Supporting columns are fixedly connected to the four corners of the top face of the workbench, the top faces of the four supporting columns are fixedly connected with the same top plate, and a hydraulic rod is fixedly connected to the center of the top face of the top plate in the vertical direction. According to the touch screen hot-pressing device, the two movable plates move close to each other through adjustment of the limiting mechanism and rotation of the servo motor, then the two limiting plates are close to each other, a touch screen is limited and fixed, the buffering mechanism is arranged, the hot-pressing plate is pushed by buffering impulsive force to conduct hot-pressing on the touch screen, and the hot-pressing efficiency is improved. The problems that the touch screen is prone to deviation during hot pressing of the hot pressing equipment, and pressing force is directly conducted to the touch screen to cause damage easily are effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of touch screen production, and in particular relates to hot pressing equipment for producing capacitive touch screens. Background Art

[0002] Capacitive touch screen technology works by utilizing the current induction of the human body. When a finger touches the metal layer, a coupling capacitor is formed between the user and the touch screen surface due to the human body's electric field. The finger draws a very small current from the contact point, and this current flows out from the electrodes on the four corners of the touch screen. The controller obtains the position of the touch point by accurately calculating the ratio of these four currents. During the production process of the touch screen, the conductive film in the touch screen needs to be bonded to the flexible circuit board through hot pressing before subsequent processing and use.

[0003] Existing hot pressing equipment usually stacks the mobile phone touch screen and the circuit board together, and then uses hot pressing to heat press the two. During the hot pressing process, the touch screen is prone to offset, causing work interruptions, greatly reducing production efficiency. Moreover, when the touch screen is pressed, the pressing force is directly transmitted to the touch screen through the pressing plate, which can easily cause damage.

[0004] Therefore, a capacitive touch screen production hot pressing device is needed to solve the problem in the prior art that the touch screen is easily offset during hot pressing and the pressing force is directly transmitted to the touch screen, which is easy to cause damage. Utility Model Content

[0005] The purpose of the utility model is to provide a capacitive touch screen production hot pressing device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a capacitive touch screen production hot pressing equipment, comprising a workbench, a mounting cavity is opened inside the workbench, support columns are fixedly connected at the four corners of the top surface of the workbench, the top surfaces of the four support columns are fixedly connected to the same top plate, a hydraulic rod is fixedly connected to the center of the top surface of the top plate in the vertical direction, the output end of the hydraulic rod slides through the top plate, a limiting mechanism is arranged on the workbench, and a buffer mechanism is arranged on the hydraulic rod;

[0007] The limiting mechanism includes a servo motor fixedly connected to the outer wall of one side of the workbench and arranged horizontally, the output end of the servo motor rotates and penetrates the outer wall of one side of the workbench, the output end of the servo motor is coaxially fixed with a bidirectional threaded rod, the end of the bidirectional threaded rod away from the servo motor is rotatably connected to the inner wall of the other side of the workbench, the outer surface of the bidirectional threaded rod is threaded with two parallel movable plates, each of the outer walls at both ends of the movable plate is fixedly connected with a sliding rod, the top surfaces of the two sliding rods located at both ends of the same movable plate are fixedly connected with the same limiting plate, and the bottom surface of the sliding rod is fixedly connected with a T-shaped slider.

[0008] It should be noted in the scheme that the limiting mechanism also includes a first slide groove cooperating with the slide rod and a T-shaped slide groove cooperating with the T-shaped slider, the first slide groove is opened on the top surface of the workbench, the top end of the slide rod is slidably connected to the first slide groove, the T-shaped slide groove is opened on the bottom surface of the installation cavity, and the outer surface of the T-shaped slider is slidably connected to the inner wall of the T-shaped slide groove.

[0009] It is further worth mentioning that the buffer mechanism includes a slide cylinder, a circular plate is slidably connected inside the slide cylinder, the top of the circular plate is coaxially fixedly connected to the output end of the hydraulic rod, the bottom end of the circular plate is fixedly connected to a buffer spring, and the bottom end of the buffer spring is fixedly connected to the inner wall of the bottom surface of the slide cylinder.

[0010] It should be further explained that a hot press plate is fixedly connected to the bottom surface of the slide cylinder, and two parallel guide rods are fixedly connected to the top surface of the hot press plate, and the top ends of the guide rods slide through the top plate.

[0011] As a preferred implementation, the bottom surface of the movable plate is slidably connected to the bottom surface of the installation cavity, and the bottom surface of the limiting plate is slidably connected to the top surface of the workbench.

[0012] As a preferred embodiment, the output end of the hydraulic rod slides through the top surface of the slide cylinder, and the diameter of the circular plate is larger than the diameter of the output end of the hydraulic rod.

[0013] Compared with the prior art, the capacitive touch screen production hot pressing equipment provided by the utility model has at least the following beneficial effects:

[0014] (1) Through the adjustment of the limit mechanism, the servo motor rotates to make the two movable plates move closer to each other, and at the same time drives the slide bar to move relative to each other, so that the two limit plates are close to each other, and the touch screen is limited and fixed to prevent the touch screen from shifting during hot pressing, thereby affecting production efficiency. The operation is simple and effectively avoids the problem of the touch screen easily shifting during hot pressing.

[0015] (2) The touch screen is hot pressed by pushing the hot pressing plate through the hydraulic rod. By setting a buffer mechanism, the impact force of the hydraulic rod acts on the circular plate and is buffered by the buffer spring. The buffered impact force pushes the hot pressing plate to hot press the touch screen, thereby achieving control of the pressing force and effectively avoiding the problem of the pressing force being directly transmitted to the touch screen and causing damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the front cross-sectional structure of the workbench of the utility model;

[0018] Figure 3 It is a schematic diagram of the side cross-sectional structure of the slide tube of the utility model.

[0019] In the figure: 1. workbench; 2. mounting cavity; 3. support column; 4. top plate; 5. hydraulic rod; 6. limit mechanism; 61. servo motor; 62. bidirectional threaded rod; 63. moving plate; 64. slide rod; 65. limit plate; 66. T-shaped slide block; 67. first slide groove; 68. T-shaped slide groove; 7. buffer mechanism; 71. slide cylinder; 72. round plate; 73. buffer spring; 8. hot pressing plate; 9. guide rod. DETAILED DESCRIPTION

[0020] The present invention will be further described below in conjunction with the embodiments.

[0021] See also Figure 1-3 The utility model provides a capacitive touch screen production hot pressing equipment, including a workbench 1, an installation cavity 2 is opened inside the workbench 1, support columns 3 are fixedly connected at the four corners of the top surface of the workbench 1, the top surfaces of the four support columns 3 are fixedly connected to the same top plate 4, a hydraulic rod 5 is fixedly connected to the center of the top surface of the top plate 4 in the vertical direction, the output end of the hydraulic rod 5 slides through the top plate 4, a limiting mechanism 6 is arranged on the workbench 1, and a buffer mechanism 7 is arranged on the hydraulic rod 5;

[0022] The limiting mechanism 6 includes a servo motor 61 fixedly connected to the outer wall of one side of the workbench 1 and arranged horizontally. The output end of the servo motor 61 rotates and penetrates the outer wall of one side of the workbench 1. The output end of the servo motor 61 is coaxially fixedly connected with a bidirectional threaded rod 62. The end of the bidirectional threaded rod 62 away from the servo motor 61 is rotatably connected to the inner wall of the other side of the workbench 1. The outer surface of the bidirectional threaded rod 62 is threaded with two parallel movable plates 63. The outer walls of both ends of each movable plate 63 are fixedly connected with sliding rods 64. The top surfaces of the two sliding rods 64 located at the two ends of the same movable plate 63 are fixedly connected with the same limiting plate 65, and the bottom surfaces of the sliding rods 64 are fixedly connected with a T-shaped sliding block 66.

[0023] Further Figure 2 As shown, it is worth explaining in detail that the limiting mechanism 6 also includes a first slide groove 67 matched with the slide rod 64 and a T-shaped slide groove 68 matched with the T-shaped slider 66. The first slide groove 67 is opened on the top surface of the workbench 1, and the top end of the slide rod 64 is slidably connected with the first slide groove 67. The T-shaped slide groove 68 is opened on the bottom surface of the installation cavity 2, and the outer surface of the T-shaped slider 66 is slidably connected with the inner wall of the T-shaped slide groove 68.

[0024] Further Figure 3 As shown, it is worth explaining in detail that the buffer mechanism 7 includes a slide cylinder 71, a circular plate 72 is slidably connected inside the slide cylinder 71, the top of the circular plate 72 is coaxially fixedly connected to the output end of the hydraulic rod 5, the bottom end of the circular plate 72 is fixedly connected to a buffer spring 73, and the bottom end of the buffer spring 73 is fixedly connected to the inner wall of the bottom surface of the slide cylinder 71.

[0025] Further Figure 3 As shown, it is worth explaining in detail that the bottom surface of the slide cylinder 71 is fixedly connected to a hot pressing plate 8, and the top surface of the hot pressing plate 8 is fixedly connected to two parallel guide rods 9, and the top ends of the guide rods 9 slide through the top plate 4.

[0026] This solution has the following working process: when the equipment is in use, the touch screen and circuit board that need to be hot pressed are first stacked and placed in the center of the top surface of the workbench 1, and then the servo motor 61 is turned on. The rotation of the servo motor 61 drives the bidirectional threaded rod 62 to rotate, and under the action of the thread, the two movable plates 63 move on the bidirectional threaded rod 62. Through the cooperation of the T-shaped slider 66 and the T-shaped slide groove 68, the movable plate 63 drives the slide rod 64 to move. At this time, the two limit plates 65 on the top surface of the workbench 1 are close to each other, and the touch screen and circuit board placed on the workbench 1 are limited and fixed.

[0027] After the touch screen and the circuit board are limited and fixed, the hydraulic rod 5 and the hot pressing plate 8 are opened, and the hydraulic rod 5 pushes the slide cylinder 71 and the hot pressing plate 8 to move downward. When the hot pressing plate 8 contacts the touch screen and the circuit board, the output end of the hydraulic rod 5 pushes the circular plate 72 to slide in the slide cylinder 71, and the circular plate 72 slides downward to squeeze the buffer spring 73. The buffer spring 73 buffers the impact of the hydraulic rod 5, and the buffered pressure pushes the hot pressing plate 8 to perform hot pressing on the touch screen and the circuit board.

[0028] According to the above working process, it can be known that: through the adjustment of the limit mechanism 6, the servo motor 61 rotates to make the two movable plates 63 move relatively close to each other, and at the same time drives the slide bar 64 to move relatively, so that the two limit plates 65 are close to each other, and the touch screen is limited and fixed to prevent the touch screen from shifting during hot pressing and affecting the production efficiency. The operation is simple and effectively avoids the problem that the touch screen is easily shifted during hot pressing of the hot pressing equipment.

[0029] The touch screen is hot-pressed by pushing the hot-pressing plate 8 through the hydraulic rod 5. By setting the buffer mechanism 7, the impact force of the hydraulic rod 5 acts on the circular plate 72, which is buffered by the buffer spring 73. The buffered impact force pushes the hot-pressing plate 8 to hot-press the touch screen, thereby realizing the control of the pressing force and effectively avoiding the problem that the pressing force is directly transmitted to the touch screen and easily causes damage.

[0030] Further Figure 2 As shown, it is worth explaining in detail that the bottom surface of the movable plate 63 is slidably connected to the bottom surface of the installation cavity 2, so that the movable plate 63 can move on the bidirectional threaded rod 62, and the bottom surface of the limit plate 65 is slidably connected to the top surface of the workbench 1, so that the limit plate 65 can move on the top surface of the workbench 1.

[0031] Further Figure 3 As shown, it is worth explaining in detail that the output end of the hydraulic rod 5 slides through the top surface of the slide cylinder 71 to ensure that the pressure of the hydraulic rod 5 can act on the buffer spring 73. The diameter of the circular plate 72 is larger than the diameter of the output end of the hydraulic rod 5, which limits the output end of the hydraulic rod 5 and prevents the output end of the hydraulic rod 5 from detaching from the slide cylinder 71.

[0032] In summary: when the equipment is in use, the touch screen and circuit board that need to be hot pressed are first stacked and placed in the center of the top surface of the workbench 1, and then the servo motor 61 is turned on. The rotation of the servo motor 61 drives the bidirectional threaded rod 62 to rotate, and the two movable plates 63 are moved on the bidirectional threaded rod 62 under the action of the thread. Through the cooperation of the T-shaped slider 66 and the T-shaped slide groove 68, the movable plate 63 drives the slide rod 64 to move. At this time, the two limit plates 65 on the top surface of the workbench 1 are close to each other, and the touch screen and circuit board placed on the workbench 1 are limited and fixed, which effectively avoids the problem of the touch screen being easily offset during hot pressing of the hot pressing equipment.

[0033] After the touch screen and the circuit board are limited and fixed, the hydraulic rod 5 and the hot pressing plate 8 are opened, and the hydraulic rod 5 pushes the slide 71 and the hot pressing plate 8 to move downward. When the hot pressing plate 8 contacts the touch screen and the circuit board, the output end of the hydraulic rod 5 pushes the circular plate 72 to slide in the slide 71. The circular plate 72 slides downward to squeeze the buffer spring 73, and the impact of the hydraulic rod 5 is buffered by the buffer spring 73. The buffered pressure pushes the hot pressing plate 8 to perform hot pressing on the touch screen and the circuit board, which effectively avoids the problem that the pressing force is directly transmitted to the touch screen and easily causes damage.

[0034] The hydraulic rod 5, the servo motor 61 and the hot pressing plate 8 can be purchased on the market. The hydraulic rod 5, the servo motor 61 and the hot pressing plate 8 are equipped with a power supply. They are mature technologies in this field and have been fully disclosed, so they are not repeated in the specification.

Claims

1. A capacitive touch screen production hot pressing equipment, comprising a workbench (1), wherein the workbench (1) is provided with an installation cavity (2), wherein the top surface of the workbench (1) is fixedly connected with support columns (3) at four corners, wherein the top surfaces of the four support columns (3) are fixedly connected with a same top plate (4), wherein the top surface center of the top plate (4) is fixedly connected with a hydraulic rod (5) in a vertical direction, wherein the output end of the hydraulic rod (5) slides through the top plate (4), wherein the hydraulic rod (5) is characterized in that: The workbench (1) is provided with a limit mechanism (6), and the hydraulic rod (5) is provided with a buffer mechanism (7); The limiting mechanism (6) comprises a servo motor (61) fixedly connected to the outer wall of one side of the workbench (1) and arranged in a transverse manner; the output end of the servo motor (61) rotates and penetrates the outer wall of one side of the workbench (1); the output end of the servo motor (61) is coaxially fixedly connected with a bidirectional threaded rod (62); one end of the bidirectional threaded rod (62) away from the servo motor (61) is rotatably connected to the inner wall of the other side of the workbench (1); the outer surface of the bidirectional threaded rod (62) is threadedly penetrated by two parallel movable plates (63); the outer walls of both ends of each movable plate (63) are fixedly connected with a sliding rod (64); the top surfaces of the two sliding rods (64) located at the two ends of the same movable plate (63) are fixedly connected with the same limiting plate (65); the bottom surface of the sliding rod (64) is fixedly connected with a T-shaped sliding block (66).

2. The capacitive touch screen production hot pressing equipment according to claim 1, characterized in that: The limiting mechanism (6) also includes a first slide groove (67) matched with the slide rod (64) and a T-shaped slide groove (68) matched with the T-shaped slider (66), wherein the first slide groove (67) is provided on the top surface of the workbench (1), the top end of the slide rod (64) is slidably connected to the first slide groove (67), the T-shaped slide groove (68) is provided on the bottom surface of the installation cavity (2), and the outer surface of the T-shaped slider (66) is slidably connected to the inner wall of the T-shaped slide groove (68).

3. The capacitive touch screen production hot pressing equipment according to claim 2, characterized in that: The buffer mechanism (7) comprises a slide cylinder (71), a circular plate (72) is slidably connected inside the slide cylinder (71), the top end of the circular plate (72) is coaxially fixedly connected to the output end of the hydraulic rod (5), the bottom end of the circular plate (72) is fixedly connected to a buffer spring (73), and the bottom end of the buffer spring (73) is fixedly connected to the inner wall of the bottom surface of the slide cylinder (71).

4. The capacitive touch screen production hot pressing equipment according to claim 3, characterized in that: The bottom surface of the slide cylinder (71) is fixedly connected to a hot pressing plate (8), and the top surface of the hot pressing plate (8) is fixedly connected to two parallel distributed guide rods (9), and the top ends of the guide rods (9) slide through the top plate (4).

5. The capacitive touch screen production hot pressing equipment according to claim 4, characterized in that: The bottom surface of the movable plate (63) is slidably connected to the bottom surface of the installation cavity (2), and the bottom surface of the limiting plate (65) is slidably connected to the top surface of the workbench (1).

6. The capacitive touch screen production hot pressing equipment according to claim 5, characterized in that: The output end of the hydraulic rod (5) slides through the top surface of the slide cylinder (71), and the diameter of the circular plate (72) is larger than the diameter of the output end of the hydraulic rod (5).

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