A LED display screen production system

By designing multiple mechanisms in the LED display production system, the problems of blockage, residue and uneven cutting of the material port during the solder paste printing process are solved, and the uniformity of solder paste quantity and printing efficiency are improved.

CN119212254BActive Publication Date: 2025-02-28FOSHAN AITOU INFO TECH CO LTD +1
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Patent Information

Application Number
CN202411713807.X
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-11-27
Publication Date
2025-02-28
Estimated Expiration
2044-11-27

AI Technical Summary

Technical Problem

During the production process of LED screens, the solder paste printing process can easily lead to clogging of the material port, residual material port and uneven material cutting, resulting in the problems of diode tilt and inconsistent solder paste during the welding process.

Method used

An LED display production system is designed, including a thickness adjustment mechanism, a pressure loading mechanism, an anti-blocking compaction mechanism, a vibration filling mechanism and a vibration demolding mechanism. Through the coordinated work of these mechanisms, the template height is adjusted, the pressure is applied, the vibration filling and mold release are ensured to ensure uniformity of the solder paste and printing efficiency.

Benefits of technology

It effectively solves the problems of blockage, residue and uneven cutting of the material port during solder paste printing, ensuring the uniformity of the solder paste amount and the printing efficiency of each material port.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention discloses an LED display screen production system, which relates to the technical field of LED display screens, and comprises a transmission mechanism, and also comprises: a driving mechanism, which is installed on one side of the transmission mechanism; a thickness adjustment mechanism, which is connected to the transmission mechanism and the driving mechanism and is used to adjust the feeding thickness; a pressure feeding mechanism, which is connected to the thickness adjustment mechanism and is used to feed the circuit board of the LED display screen; an anti-blocking compaction mechanism, which is connected to the pressure feeding mechanism and the thickness adjustment mechanism and is used to press the material; and a vibration filling mechanism, which is connected to the pressure feeding mechanism and the thickness adjustment mechanism. The invention drives the template and other structures to move up and down by installing the thickness adjustment mechanism, so that the template is docked with the top of the circuit board, which is convenient for subsequent printing work, and when the thickness needs to be increased, the height of the template is adjusted to cooperate with other mechanisms to realize the separation of the material and the material opening, and the material opening height of the template is adjusted after separation, so as to adjust the amount of printed solder paste according to needs.
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Description

Technical Field

[0001] The present invention relates to the technical field of LED display screens, and in particular to a LED display screen production system. Background Art

[0002] LED screen is a new type of imaging electronic device made of light-emitting diodes arranged in sequence. Due to its high brightness, wide viewing angle and long life, it is widely used in products such as outdoor advertising screens.

[0003] The LED screen needs to go through steps such as solder paste printing, diode installation, solder paste heating and welding, and assembly during the production process. During the solder paste printing process, it is easy to cause blockage in the template material port, material port residue, and uneven material discharge. The above problems will cause the printing amount of each pin printed on the circuit board to be uneven, resulting in the diode tilting due to different melting speeds during the welding process. In addition, due to different solder paste materials, the amount of tin liquid formed after melting is also inconsistent. Therefore, the solder paste printing amount needs to be adjusted according to factors such as the solder paste material during the printing process. Summary of the invention

[0004] The present invention provides a LED display screen production system to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] An LED display screen production system includes a transmission mechanism and further includes:

[0007] A driving mechanism, which is installed on one side of the transmission mechanism;

[0008] A thickness adjustment mechanism, which is connected to the transmission mechanism and the driving mechanism, and is used to adjust the thickness of the feeding material;

[0009] A pressure feeding mechanism, which is connected to the thickness adjustment mechanism and is used to feed the circuit board of the LED display screen;

[0010] The anti-blocking compaction mechanism is connected with the pressure feeding mechanism and the thickness adjustment mechanism and is used to press the material;

[0011] A vibration filling mechanism, which is connected to the pressure feeding mechanism and the thickness adjustment mechanism, and is used to vibrate the pressure feeding mechanism to fill the internal material into the material port;

[0012] The vibration demoulding mechanism is connected with the pressure feeding mechanism and the thickness adjusting mechanism, and is used for vibrating the thickness adjusting mechanism to separate the material in the material opening from the wall of the material opening.

[0013] Preferably, the transmission mechanism comprises a transmission belt, and a plurality of flexible mounting frames are fixed on the top of the transmission belt.

[0014] Preferably, the driving mechanism includes a motor fixed to one side of the conveyor belt, and a gear 1 is fixed to one end of the output shaft of the motor.

[0015] Preferably, the thickness adjustment mechanism comprises a plurality of support frames, the plurality of support frames are respectively fixed on both sides of the conveyor belt, two of the support frames on one side are rotatably connected with a reciprocating screw rod 1, a pulley is fixed at the bottom end of the reciprocating screw rod 1, the external transmission of the two pulleys is connected with a belt, the external part of the reciprocating screw rod 1 is threadedly sleeved with a moving block 1, and two of the support frames on the other side are fixed with a telescopic rod, a moving block 2 is fixed at the top end of the telescopic rod, a placement frame is fixed between the two moving blocks 2 and the two moving blocks 1, the placement frame is a C-shaped structure, and a template is installed on the placement frame;

[0016] A bevel gear 2 is fixed to the outside of the reciprocating screw 1 close to the motor, one side of the bevel gear 2 is meshed with a bevel gear 1, a rotating shaft 1 is fixed to the inner wall of the bevel gear 1, a one-way gear 1 is installed on the other end of the rotating shaft 1, one side of the one-way gear 1 is meshed with gear 1, and a mounting plate 1 is rotatably connected to the outside of the rotating shaft 1, and the mounting plate 1 is fixed to one side of the conveyor belt mounting motor.

[0017] Preferably, the pressure feeding mechanism includes a reciprocating screw rod 2 rotatably connected to one side of the placement rack, a one-way gear 2 is fixed to one end of the reciprocating screw rod 2, and the one-way gear 2 meshes with gear 1 during the downward movement, a guide rod 1 is fixed to the other side of the placement rack, the external thread sleeve of the reciprocating screw rod 2 is provided with a movable plate 1, the external sleeve of the guide rod 1 is provided with a movable plate 2, a material frame is fixed between the movable plates 1 and 2, a discharge port is provided at the bottom of the material frame, the discharge port is in contact with the top of the template, a pressure plate is provided inside the material frame, a feeding pipe is connected to the pressure plate, and a locking bolt is provided through the thread sleeve on one side of the material frame.

[0018] Preferably, the anti-blocking compaction mechanism includes a reciprocating screw three rotatably connected to one side of the material frame, a gear two is fixed to the top of the reciprocating screw three, a push plate is provided on the external threaded sleeve of the reciprocating screw three, a rubber material is fixed to the bottom of the push plate, the surface of the rubber material is coated with an anti-stick coating, a guide rod two is provided on the other side of the push plate, the guide rod two is fixed to one side of the material frame, two mounting rods are fixed on the top of the placement rack, a rack one is fixed on the top of the two mounting rods, and the gear two meshes with the rack one and rotates during the movement.

[0019] Preferably, the vibration filling mechanism includes a rack 2 fixed between two mounting rods, the other side of the material frame is rotatably connected to a rotating shaft 2, an eccentric wheel is fixed to the outside of the rotating shaft 2, and a gear 3 is fixed to one end of the rotating shaft 2 close to the rack 2, and the gear 3 is meshed with the rack 2.

[0020] Preferably, the vibration demoulding mechanism includes a U-shaped frame fixed to one side of the material frame, the U-shaped frame is sleeved on the outside of the rubber material, a plurality of sleeves with bottom openings are fixed on the U-shaped frame, a spring is fixed to the top inner wall of the sleeve, a knocking rod is fixed to the bottom end of the spring, a slide groove is opened on one side of the sleeve, a slider is fixed on one side of the knocking rod, the slider is sleeved inside the slide groove, two mounting plates two are fixed to one side of the U-shaped frame, a rotating shaft three is rotatably connected inside the mounting plate two, a gear four is fixed to one end of the rotating shaft three, a plurality of shift plates are fixed to the outside of the rotating shaft three, a rack three is fixed to the top of the two moving blocks two, and the gear four meshes with the rack three during movement.

[0021] Preferably, a controller is fixed to one side of the conveyor belt, and the controller is electrically connected to the motor and the conveyor belt.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention drives the template and other structures to move up and down by installing a thickness adjustment mechanism, so that the template is docked with the top of the circuit board, which is convenient for subsequent printing work. When the thickness needs to be increased, the height of the template is adjusted to cooperate with other mechanisms to achieve the separation of the material and the material port, and the material port height of the template is adjusted after separation, thereby adjusting the amount of printed solder paste according to needs.

[0024] 2. The present invention installs a pressure feeding mechanism to apply pressure to the solder paste through the weight of the pressure plate, so that the solder paste can quickly enter the template material port in a short time, thereby ensuring the amount of solder paste entering and increasing the time for the solder paste to enter the material port, solving the problem that it takes a long time for the solder paste to flow into the material port by itself, and improving the efficiency of solder paste printing.

[0025] 3. The present invention installs an anti-blocking compaction mechanism to pressurize the solder paste in the material port through the rubber material, thereby avoiding the situation where the inner wall of the material port is blocked and residual, and discharges the air in the material port so that the solder paste is tightly and evenly filled inside, ensuring that the amount of solder paste in each material port is uniform, and solving the problem that the amount of material flowing in by gravity is not tightly and evenly filled.

[0026] 4. The present invention installs a vibration filling mechanism to drive the material frame to vibrate, so that the viscous solder paste inside can sink, making material feeding convenient.

[0027] 5. The present invention installs a vibration demoulding mechanism to knock the top of the template to make the template vibrate up and down, thereby separating the solder paste from the inner wall of the material opening, avoiding the solder paste from remaining inside the template material opening and avoiding uneven solder paste amount on the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a first-view structural schematic diagram of an LED display screen production system proposed by the present invention.

[0029] Figure 2 This is a second viewing angle structural schematic diagram of an LED display screen production system proposed by the present invention.

[0030] Figure 3 This is a third-view structural schematic diagram of an LED display screen production system proposed by the present invention.

[0031] Figure 4 This is a schematic cross-sectional structure diagram of an LED display screen production system proposed by the present invention.

[0032] Figure 5 This is a schematic diagram of the structure of a vibration demoulding mechanism of an LED display screen production system proposed by the present invention.

[0033] Figure 6 This is a schematic diagram of the structure of a vibration filling mechanism of an LED display screen production system proposed by the present invention.

[0034] Figure 7 for Figure 5 Enlarged structural diagram at point A.

[0035] In the figure: 1, transmission mechanism; 11, transmission belt; 12, flexible mounting frame; 2, driving mechanism; 21, motor; 22, gear 1; 3, thickness adjustment mechanism; 31, support frame; 32, reciprocating screw 1; 33, pulley; 34, belt; 35, moving block 1; 36, bevel gear 2; 37, mounting plate 1; 38, rotating shaft 1; 39, bevel gear 1; 310, one-way gear 1; 311, telescopic rod; 312, moving block 2; 313, placement frame; 314, template; 4, pressure feeding mechanism; 41, reciprocating screw 2; 42, one-way gear 2; 43, guide rod 1; 44, moving plate 1; 45, moving Movable plate two; 46, material frame; 47, pressure plate; 48, feeding tube; 49, fastening bolt; 5, anti-blocking compaction mechanism; 51, reciprocating screw three; 52, gear two; 53, guide rod two; 54, push plate; 55, rubber material; 56, mounting rod; 57, rack one; 6, vibration filling mechanism; 61, rack two; 62, rotating shaft two; 63, eccentric wheel; 64, gear three; 7, vibration demoulding mechanism; 71, U-shaped frame; 72, sleeve; 73, spring; 74, slide groove; 75, knocking rod; 76, slider; 77, mounting plate two; 78, rotating shaft three; 79, dial plate; 710, gear four; 711, rack three. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0039] Example: Refer to Figure 1-Figure 7 : A LED display screen production system, comprising a transmission mechanism 1, and also comprising:

[0040] A driving mechanism 2, which is installed on one side of the transmission mechanism 1;

[0041] A thickness adjustment mechanism 3, which is connected to the transmission mechanism 1 and the driving mechanism 2, and is used to adjust the thickness of the feeding material;

[0042] A pressure feeding mechanism 4, which is connected to the thickness adjustment mechanism 3 and is used for feeding the circuit board of the LED display screen;

[0043] The anti-blocking compaction mechanism 5 is connected to the pressure feeding mechanism 4 and the thickness adjustment mechanism 3 and is used to press the material;

[0044] A vibration filling mechanism 6, which is connected to the pressure feeding mechanism 4 and the thickness adjustment mechanism 3, is used to vibrate the pressure feeding mechanism 4 to fill the internal material into the material port;

[0045] The vibration demoulding mechanism 7 is connected to the pressure feeding mechanism 4 and the thickness adjusting mechanism 3, and is used for vibrating the thickness adjusting mechanism 3 to separate the material in the material port from the material port wall.

[0046] The transmission mechanism 1 comprises a transmission belt 11 , and a plurality of flexible mounting frames 12 are fixed on the top of the transmission belt 11 .

[0047] The driving mechanism 2 includes a motor 21 fixed to one side of the conveyor belt 11, and a gear 22 is fixed to one end of the output shaft of the motor 21.

[0048] The thickness adjustment mechanism 3 includes a plurality of support frames 31, and the plurality of support frames 31 are respectively fixed on both sides of the conveyor belt 11. The two support frames 31 on one side are rotatably connected with a reciprocating screw 32, a pulley 33 is fixed at the bottom end of the reciprocating screw 32, and a belt 34 is connected to the external transmission of the two pulleys 33. The external part of the reciprocating screw 32 is threadedly sleeved with a moving block 35. The two support frames 31 on the other side are fixed with a telescopic rod 311, and a moving block 2 312 is fixed at the top of the telescopic rod 311. A placement frame 313 is fixed between the two moving blocks 2 312 and the two moving blocks 1 35. The placement frame 313 is a C-shaped structure, and a template 314 is installed on the placement frame 313.

[0049] A bevel gear 2 36 is fixed to the outside of the reciprocating screw 1 32 close to the motor 21, and a bevel gear 1 39 is meshed on one side of the bevel gear 2 36. A rotating shaft 1 38 is fixed to the inner wall of the bevel gear 1 39. A one-way gear 1 310 is installed on the other end of the rotating shaft 1 38. One side of the one-way gear 1 310 is meshed with the gear 1 22. The outside of the rotating shaft 1 38 is rotatably connected to a mounting plate 1 37, and the mounting plate 1 37 is fixed to one side of the conveyor belt 11 where the motor 21 is mounted.

[0050] The thickness adjustment mechanism 3 drives the template 314 and other structures to move up and down, so that the template 314 is connected to the top of the circuit board, which is convenient for subsequent printing work. When the thickness needs to be increased, the height of the template 314 is adjusted to cooperate with other mechanisms to achieve the separation of the material and the material port, and the material port height of the template 314 is adjusted after separation, thereby adjusting the amount of printed solder paste according to needs.

[0051] The pressure feeding mechanism 4 includes a reciprocating screw rod 41 rotatably connected to one side of the placement frame 313, a one-way gear 42 is fixed to one end of the reciprocating screw rod 41, and the one-way gear 42 meshes with the gear 22 during the downward movement, and a guide rod 43 is fixed to the other side of the placement frame 313. The external thread sleeve of the reciprocating screw rod 41 is provided with a moving plate 44, and the external sleeve of the guide rod 43 is provided with a moving plate 45. A material frame 46 is fixed between the moving plates 44 and 45, and a discharge port is provided at the bottom of the material frame 46, and the discharge port contacts the top of the template 314. A pressure plate 47 is provided inside the material frame 46, and a feeding pipe 48 is connected to the pressure plate 47. A tightening bolt 49 is provided through a thread sleeve on one side of the material frame 46;

[0052] The pressure feeding mechanism 4 applies pressure to the solder paste through the weight of the pressure plate 47, so that the solder paste quickly enters the material port of the template 314 in a short time, ensuring the amount of solder paste entering and increasing the time for the solder paste to enter the material port, solving the problem of a long time required for self-flowing into the material port, and improving the efficiency of solder paste printing.

[0053] The anti-blocking compaction mechanism 5 includes a reciprocating screw rod 3 51 rotatably connected to one side of the material frame 46, a gear 2 52 is fixed to the top of the reciprocating screw rod 3 51, a push plate 54 is sleeved on the external thread of the reciprocating screw rod 3 51, a rubber material 55 is fixed to the bottom of the push plate 54, and the surface of the rubber material 55 is coated with an anti-stick coating, and a guide rod 2 53 is sleeved on the other side of the push plate 54, and the guide rod 2 53 is fixed to one side of the material frame 46, and two mounting rods 56 are fixed to the top of the placement frame 313, and a rack 1 57 is fixed to the top of the two mounting rods 56, and the gear 2 52 meshes with the rack 1 57 and rotates during the movement;

[0054] The anti-blocking compaction mechanism 5 pressurizes the solder paste in the material port through the rubber material 55, avoids the situation that the inner wall of the material port is blocked and residual, discharges the air in the material port, and fills the solder paste tightly and evenly inside, ensuring the uniform amount of solder paste in each material port, and solving the problem that the amount of material flowing in by gravity is not tightly and evenly filled.

[0055] The vibration filling mechanism 6 includes a second rack 61 fixed between two mounting rods 56, and the other side of the material frame 46 is rotatably connected to a second shaft 62, an eccentric wheel 63 is fixed to the outside of the second shaft 62, and a third gear 64 is fixed to one end of the second shaft 62 close to the second rack 61, and the third gear 64 is meshed with the second rack 61;

[0056] The vibration filling mechanism 6 drives the material frame 46 to vibrate, so that the viscous solder paste inside can sink, making it easier to discharge the material.

[0057] The vibration demoulding mechanism 7 includes a U-shaped frame 71 fixed to one side of the material frame 46, the U-shaped frame 71 is sleeved on the outside of the rubber material 55, a plurality of sleeves 72 with bottom openings are fixed on the U-shaped frame 71, a spring 73 is fixed to the top inner wall of the sleeve 72, a knocking rod 75 is fixed to the bottom end of the spring 73, a slide groove 74 is opened on one side of the sleeve 72, a slider 76 is fixed to one side of the knocking rod 75, the slider 76 is sleeved inside the slide groove 74, two mounting plates 2 77 are fixed to one side of the U-shaped frame 71, a rotating shaft 3 78 is rotatably connected inside the mounting plate 2 77, a gear 4 710 is fixed to one end of the rotating shaft 3 78, a plurality of dial plates 79 are fixed to the outside of the rotating shaft 3 78, a rack 3 711 is fixed to the top of the two moving blocks 2 312, and the gear 4 710 meshes with the rack 3 711 during the movement process;

[0058] The vibration demoulding mechanism 7 knocks on the top of the template 314 to make the template 314 vibrate up and down, thereby separating the solder paste from the inner wall of the material opening, preventing the solder paste from remaining inside the material opening of the template 314 and avoiding uneven solder paste amount on the circuit board.

[0059] A controller is fixed on one side of the conveyor belt 11 , and the controller is electrically connected to the motor 21 and the conveyor belt 11 .

[0060] Working principle:

[0061] The tightening bolt 49 is rotated to apply pressure to the pressing plate 47, and then the feeding tube 48 is opened to add solder paste to the bottom of the pressing plate 47, and then the feeding tube 48 is covered, and the pressure of the tightening bolt 49 on the pressing plate 47 is released. The pressing plate 47 moves downward to generate pressure on the solder paste below. The controller controls the conveyor belt 11 to drive the flexible mounting frame 12 and the circuit board installed in the flexible mounting frame 12 to move, so that the circuit board moves to the bottom of the template 314, so that the pin point of the circuit board corresponds to the solder paste opening on the template 314, and the movement stops;

[0062] The controller controls the motor 21 to drive the gear 1 22 to rotate forward, and the forward rotation of the gear 1 22 satisfies the direction of the rotation of the one-way gear 1 310 to drive the shaft 1 38 to rotate. The rotation of the shaft 1 38 drives the bevel gear 1 39 to rotate, and the rotation of the bevel gear 1 39 drives the bevel gear 2 36 and the reciprocating screw 1 32 to rotate. The reciprocating screw 1 32 rotates through the pulley 33 and the belt 34 to drive another reciprocating screw 1 32 to rotate, so that the moving block 1 35 drives the placement frame 313 and the moving block 2 312 to move downward, and the moving block 2 312 moves downward to shrink the telescopic rod 311, and the moving block 1 35 moves down to the wire tail below the reciprocating screw 1 32 and then stops moving. At this time, the bottom of the template 314 is in close contact with the top of the circuit board, and the material opening of the template 314 corresponds to the pin of the circuit board.

[0063] The downward movement of the placement rack 313 will synchronously drive the pressure feeding mechanism 4, the anti-blocking compacting mechanism 5, the vibration filling mechanism 6 and the vibration demoulding mechanism 7 to move downward, so that the one-way gear 2 42 is meshed with the gear 1 22, and then the motor 21 is started to drive the gear 1 22 to reverse so that the gear 1 22 satisfies the direction of the one-way gear 2 42 to drive the reciprocating screw 2 41 to rotate, so that the moving plate 1 44 drives the material frame 46 and the internal solder paste to move to one side, and the solder paste is filled into the interior of the material port when passing through the material port of the template 314, and the pressure plate 47 above the solder paste moves downward to feed pressure so that the solder paste can fully fill the interior of the material port. When moving, part of the anti-blocking compacting mechanism 5, the vibration filling mechanism 6 and the vibration demoulding mechanism 7 follow the movement, and the gear 3 64 is meshed with the rack 2 61 and drives the rotating shaft 2 62 and the eccentric wheel 63 to rotate. The rotation of the eccentric wheel 63 causes the material frame 46 to vibrate, thereby making it easier to discharge the solder paste;

[0064] During the movement, the gear 2 52 of the anti-blocking and compacting mechanism 5 meshes with the rack 1 57 and drives the reciprocating screw 3 51 to rotate, so that the push plate 54 pushes the rubber material 55 to move up and down reciprocatingly, so that the rubber material 55 squeezes the template 314 when it moves down, and the rubber material 55 extends into the inside of the material port to press the solder paste inside when it is squeezed. Pressing the material port can make the solder paste filling more compact and uniform, and also avoid the blockage of solder paste in the material port, which makes it difficult to print the solder paste uniformly on the surface of the circuit board. When the moving plate 1 44 moves to the wire tail, it drives the material frame 46 to move back, and the squeezed material port is refilled with solder paste to make the amount of solder paste in each material port uniform.

[0065] When the vibration demoulding mechanism 7 moves with the material frame 46, the gear 4 710 meshes with the rack 3 711 and drives the rotating shaft 3 78 and the dial plate 79 to rotate. When the dial plate 79 rotates, it contacts the bottom of the slider 76 and pushes the slider 76 upward. The slider 76 moves upward and drives the knocking rod 75 to move upward to compress the spring 73. After the dial plate 79 rotates, the spring 73 pushes the knocking rod 75 to move downward quickly to knock the template 314, so that the template 314 vibrates, so that the material in the material port is more compact, and the inner wall of the material port and the material are separated due to the vibration, which facilitates the separation of the material from the material port, and avoids the situation where the material remains in the material port and is difficult to print on the circuit board.

[0066] After the material frame 46 is reset, it stops moving. If the height of the solder paste needs to be increased, the motor 21 is started to drive the gear 1 22 to rotate forward, so that the moving block 1 35 moved to the wire tail drives the template 314 to move up a specified distance. When the template 314 moves up, the material in the material port does not move up with it, so the space in the material port will be vacated, and then the solder paste can continue to be filled in, thereby realizing the control of the amount of solder paste. Because the upward moving distance is short, the one-way gear 2 42 after moving up is still meshed with the gear 1 22;

[0067] After the printing is completed, the template 314 is continuously moved upward and reset, and then the conveyor belt 11 is started to move the printed circuit board to the next station.

[0068] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A LED display screen production system, comprising a transmission mechanism (1), characterized in that Also includes: A driving mechanism (2) mounted on one side of the transmission mechanism (1); A thickness adjustment mechanism (3), which is connected to the transmission mechanism (1) and the drive mechanism (2) and is used to adjust the thickness of the material being fed; A pressure feeding mechanism (4), which is connected to the thickness adjustment mechanism (3) and is used for feeding the circuit board of the LED display screen; An anti-blocking compacting mechanism (5) connected to the pressure feeding mechanism (4) and the thickness adjustment mechanism (3) and used for pressing the material; A vibration filling mechanism (6) connected to the pressure feeding mechanism (4) and the thickness adjustment mechanism (3) and used to vibrate the pressure feeding mechanism (4) to fill the internal material into the material opening; A vibration demoulding mechanism (7) connected to the pressure feeding mechanism (4) and the thickness adjustment mechanism (3) and used for vibrating the thickness adjustment mechanism (3) to separate the material in the material opening from the wall of the material opening; The transmission mechanism (1) comprises a transmission belt (11), and a plurality of flexible mounting frames (12) are fixed on the top of the transmission belt (11); The driving mechanism (2) comprises a motor (21) fixed to one side of the conveyor belt (11), and a gear 1 (22) is fixed to one end of the output shaft of the motor (21); The thickness adjustment mechanism (3) comprises a plurality of support frames (31), wherein the plurality of support frames (31) are respectively fixed on both sides of the conveyor belt (11), and two of the support frames (31) on one side are rotatably connected to a reciprocating screw rod (32), a pulley (33) is fixed at the bottom end of the reciprocating screw rod (32), and the two pulleys (33) are externally connected to a belt (34), and the external part of each reciprocating screw rod (32) is threadedly sleeved with a moving block (35), and two of the support frames (31) on the other side are fixed to a telescopic rod (311), and a moving block (312) is fixed at the top end of the telescopic rod (311), and a placement frame (313) is fixed between the two moving blocks (312) and the two moving blocks (35), and the placement frame (313) is a C-shaped structure, and a template (314) is installed on the placement frame (313); A bevel gear 2 (36) is fixed to the outside of a reciprocating screw rod 1 (32) close to the motor (21), a bevel gear 1 (39) is meshed on one side of the bevel gear 2 (36), a rotating shaft 1 (38) is fixed to the inner wall of the bevel gear 1 (39), a one-way gear 1 (310) is mounted on the other end of the rotating shaft 1 (38), one side of the one-way gear 1 (310) is meshed with gear 1 (22), and a mounting plate 1 (37) is rotatably connected to the outside of the rotating shaft 1 (38), and the mounting plate 1 (37) is fixed to the side of the conveyor belt (11) on which the motor (21) is mounted.

2. The LED display screen production system according to claim 1, characterized in that: The pressure feeding mechanism (4) comprises a reciprocating screw rod 2 (41) rotatably connected to one side of the placement frame (313); a one-way gear 2 (42) is fixed to one end of the reciprocating screw rod 2 (41); the one-way gear 2 (42) meshes with the gear 1 (22) during the downward movement; a guide rod 1 (43) is fixed to the other side of the placement frame (313); a movable plate 1 (44) is sleeved on the outer thread of the reciprocating screw rod 2 (41); a movable plate 2 (45) is sleeved on the outer surface of the guide rod 1 (43); a material frame (46) is fixed between the movable plate 1 (44) and the movable plate 2 (45); a discharge port is provided at the bottom of the material frame (46); the discharge port contacts the top of the template (314); a pressure plate (47) is sleeved inside the material frame (46); a feeding pipe (48) is connected to the pressure plate (47); a locking bolt (49) is provided through the threaded sleeve on one side of the material frame (46).

3. The LED display screen production system according to claim 2, characterized in that: The anti-blocking compacting mechanism (5) comprises a reciprocating screw rod three (51) rotatably connected to one side of the material frame (46), a gear rod two (52) being fixed to the top of the reciprocating screw rod three (51), a push plate (54) being provided on the external thread sleeve of the reciprocating screw rod three (51), a rubber material (55) being fixed to the bottom of the push plate (54), the surface of the rubber material (55) being coated with an anti-stick coating, a guide rod two (53) being provided on the other side of the push plate (54), the guide rod two (53) being fixed to one side of the material frame (46), two mounting rods (56) being fixed to the top of the placement frame (313), a rack rod one (57) being fixed to the top of the two mounting rods (56), and the gear rod two (52) meshes with the rack rod one (57) and rotates during the movement.

4. The LED display screen production system according to claim 3, characterized in that: The vibration filling mechanism (6) comprises a second rack (61) fixed between two mounting rods (56); the other side of the material frame (46) is rotatably connected to a second rotating shaft (62); an eccentric wheel (63) is fixed to the outside of the second rotating shaft (62); a third gear (64) is fixed to one end of the second rotating shaft (62) close to the second rack (61); the third gear (64) is meshed with the second rack (61).

5. The LED display screen production system according to claim 4, characterized in that: The vibration demoulding mechanism (7) comprises a U-shaped frame (71) fixed to one side of the material frame (46), the U-shaped frame (71) being sleeved on the outside of the rubber material (55), a plurality of sleeves (72) with bottom openings being fixed to the U-shaped frame (71), a spring (73) being fixed to the top inner wall of the sleeve (72), a knocking rod (75) being fixed to the bottom end of the spring (73), a sliding groove (74) being provided on one side of the sleeve (72), a sliding block (76) being fixed to one side of the knocking rod (75), and the The slider (76) is sleeved inside the slide groove (74), and two mounting plates (77) are fixed on one side of the U-shaped frame (71). The mounting plate (77) is rotatably connected inside with a rotating shaft (78), and a gear (710) is fixed to one end of the rotating shaft (78). A plurality of shift plates (79) are fixed to the outside of the rotating shaft (78). A rack (711) is fixed on the top of the two moving blocks (312), and the gear (710) is meshed with the rack (711) during the movement process.

6. The LED display screen production system according to claim 5, characterized in that: A controller is fixed on one side of the conveyor belt (11), and the controller is electrically connected to the motor (21) and the conveyor belt (11).

Citation Information

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