CN220429281U - Film secondary laminating equipment of LED display module - Google Patents

Abstract

The utility model relates to a film secondary laminating device of an LED display module, which comprises at least one film secondary laminating mechanism, wherein the film secondary laminating mechanism comprises a feeding and discharging assembly and a heating mechanism; the feeding and discharging assembly comprises a heating main body and a fixture tool fixed on the heating main body; the heating mechanism comprises a compression cylinder and a heating roller connected with a piston rod of the compression cylinder; the heating mechanism is positioned above the feeding and discharging assembly, and the feeding and discharging assembly and the heating mechanism can move relatively in one dimension, so that the heating roller rolls over the display module attached with the film on the fixture tool under the action of the compression cylinder. The utility model can improve the secondary lamination efficiency of the film.

Description

Film secondary laminating equipment of LED display module

Technical Field

The utility model belongs to the technical field of LED display products, and relates to a film secondary laminating device of an LED display module.

Background

In the production process of the LED display product, the surface film is one of indispensable key links, in the actual operation flow of the link, the film can be attached to the lamp panel after being heated to a certain degree to dissolve the hot melt adhesive on the surface of the film, in the actual attaching process, the attaching effect of the first time cannot reach the factory requirement due to micro deformation of the display module or the temperature loss of the heating roller in the rolling attaching process, and through experiments, the attaching effect of the hot melt adhesive of the film and the display module reaches the optimal after the second attaching of the same display module. If the film raw material is wasted when the secondary lamination is carried out in the original equipment (patent: the 'LED display product lamp panel surface laminating equipment' patent number: 2022230843105), the film is wasted when the secondary lamination is carried out because the vacuum chuck can absorb the film to return to the position to be laminated after lamination and cutting of the original equipment, and the efficiency is also reduced. As such, how to quickly reattach without wasting raw materials is critical to new equipment.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a film secondary laminating device of an LED display module, which can improve the working efficiency and save the film raw materials.

In order to solve the technical problems, the film secondary laminating equipment of the LED display module comprises at least one film secondary laminating mechanism, wherein the film secondary laminating mechanism comprises a feeding and discharging assembly and a heating mechanism; the feeding and discharging assembly comprises a heating main body and a fixture tool fixed on the heating main body; the heating mechanism comprises a compression cylinder and a heating roller connected with a piston rod of the compression cylinder; the heating mechanism is positioned above the feeding and discharging assembly, and the feeding and discharging assembly and the heating mechanism can move relatively in one dimension, so that the heating roller rolls over the display module attached with the film on the fixture tool under the action of the compression cylinder.

Further, the utility model also comprises a one-dimensional moving mechanism, and the feeding and discharging assembly is arranged on the one-dimensional moving mechanism.

The utility model further comprises a section frame, the one-dimensional moving mechanism is arranged at the lower part in the section frame, and the heating mechanism is arranged at the top part in the section frame.

The one-dimensional moving mechanism comprises a datum plate, a slide rail cushion block, an auxiliary slide rail, a screw rod and nut transmission pair and a movable plate; a servo drive motor; the reference plate is fixed on the section frame, and the screw rod and nut transmission pair is arranged on the reference plate; the servo driving motor is arranged on the reference plate and positioned at the tail end of the screw rod nut transmission pair; the two slide rail cushion blocks are fixed on the reference plate and distributed on two sides of the screw rod and screw nut transmission pair, and the auxiliary slide rail is arranged on the slide rail cushion blocks; the movable plate is arranged on the auxiliary sliding rail and fixedly connected with a screw in the screw transmission pair, and the servo driving motor can drive the movable plate to move back and forth along the auxiliary sliding rail through the screw transmission pair.

The one-dimensional moving mechanism further comprises a photoelectric sensing piece, a feeding level photoelectric switch, an origin photoelectric switch and a detection level photoelectric switch; the photoelectric sensing piece is arranged at the rear side of the movable plate; the charging position photoelectric switch, the origin photoelectric switch and the detection position photoelectric switch are respectively arranged at a charging limit point, an origin limit point and a detection limit point on the reference plate.

The feeding and discharging assembly further comprises a bottom heat insulation plate; the bottom heat insulation plate is arranged on the one-dimensional moving mechanism, and the heating main body is fixed on the bottom heat insulation plate; the heating main body is provided with side heat insulation boards at two sides of the fixture tool.

The heating mechanism also comprises a top connecting plate, vertical plates on two sides, a heating adjusting plate, a supporting plate, a floating joint, a pressure sensor connecting plate, a pressure sensor, a quick-change datum plate, a hot roller heat insulating plate and a heating roller connecting plate; the top connecting plate is fixedly connected with the profile frame, the top and the bottom of the vertical plates at two sides are respectively and fixedly connected with the top connecting plate and the supporting plate, the heating adjusting plate is arranged on the supporting plate through waist grooves and screws, the compression cylinder is arranged on the heating adjusting plate, and a piston rod of the compression cylinder downwards penetrates through central through holes of the heating adjusting plate and the supporting plate and is connected with the pressure sensor connecting plate through a floating joint below; the pressure sensor is connected between the pressure sensor connecting plate and the quick-change reference plate; the heat roller heat insulation plate is fixedly connected below the quick-change reference plate; the two heating roller connecting plates are fixed below the two sides of the heating roller heat insulation plate; the heating roller is arranged between the two heating roller connecting plates.

Further, the heating mechanism also comprises a linear bearing, an optical axis and a B temperature sensor; the two linear bearings are symmetrically arranged on two sides of the compression cylinder and fixed on the heating adjusting plate; the two optical axes are arranged and fixed on the quick-change reference plate and pass through the shaft holes of the corresponding linear bearings; the two B temperature sensors are symmetrically arranged on two sides of the compression cylinder and fixed on the heating adjusting plate.

The quick-change datum plate and the hot roller heat insulating plate are L-shaped, are buckled together and are connected and fixed together through inner hexagon bolts on the side face.

Further, the utility model also comprises an A sensor bracket and an A temperature sensor; the sensor bracket A is arranged on the section frame and positioned at the rear side of the heating mechanism; the A temperature sensor is arranged on the A sensor bracket.

Advantageous effects

(1) According to the utility model, at least one film secondary laminating mechanism with the same structure can be arranged side by side, each film secondary laminating mechanism can work independently, when one film secondary laminating mechanism is used for laminating films of the display module, other mechanisms can be used for placing the display module, and the working efficiency can be improved.

(2) In addition, according to the currently used film coating equipment (a lamp panel surface film coating equipment of an LED display product, patent number: 2022230843105), the heating mechanism adopts the design of a quick-change heating roller, and the heating roller is damaged due to the fact that the heating roller is influenced by heating temperature or working pressure when in use, and the heating roller in the original equipment is arranged below the heat insulation plate after being connected with a heating roller connecting plate, so that the heating roller is inconvenient to detach. The utility model is replaced by a hot roller heat insulation plate and an aluminum alloy quick-change reference plate which are L-shaped, wherein the quick-change reference plate is connected with an optical axis and a pressure sensor and is fixed, the hot roller heat insulation plate is connected with a heating roller connecting plate, and the hot roller heat insulation plate and the quick-change reference plate can be quickly disassembled, so that production personnel can conveniently replace a heating roller.

Drawings

Fig. 1 is a perspective view of the overall structure of the present utility model.

Fig. 2 is a front view of the screw assembly of the present utility model.

Fig. 3 is a top view of the lead screw assembly of the present utility model.

Fig. 4 is a structural perspective view of the loading and unloading assembly.

Fig. 5 is a left side view of the heating mechanism and a sensor.

Fig. 6 is a front view of the heating mechanism.

Fig. 7 is a top view of the partial structure of fig. 6.

Fig. 8 is an isometric view of a heating mechanism.

In the figure: 1.a profile frame; 2.a screw rod conveying device; 21. a reference plate; 221. a slide rail cushion block; 222. an auxiliary slide rail; 223. a screw rod device; 23. a movable plate; 24. a photoelectric sensing sheet; 251. a charging level photoelectric switch; 252. an origin photoelectric switch; 253. detecting a bit photoelectric switch; 26. a servo drive motor; 3. feeding and discharging components; 31. a bottom heat insulating plate; 32. heating the body; 33. tool equipment; 331. concave holes; 34. a side heat shield; 4. a heating mechanism; 41. a top connection plate; 42. a vertical plate; 43. a heating adjustment plate; 44. a support plate; 451. a compacting cylinder; 452. a floating joint; 453. a pressure sensor connection plate; 454. a pressure sensor; 461. a linear bearing; 462. an optical axis; a b temperature sensor; 481. quick-changing a reference plate; 482. a heat roller heat insulating plate; 483. a heating roller connecting plate; 484. a heating roller; 5. a button box; 6. a distribution box; a sensor holder; a temperature sensor.

Detailed Description

The present utility model will now be described in further detail with reference to the drawings and examples, it being understood that the specific examples described herein are intended to illustrate the utility model only and are not intended to be limiting. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present utility model are shown in the drawings.

In the description of the present utility model, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood in detail by those skilled in the art.

In the present utility model, unless explicitly specified and limited otherwise, a first feature "above" or "below" a second feature may include both the first feature and the second feature in direct contact, and may also include both the first and second features not in direct contact but in contact with each other through additional features therebetween. And "over", "above" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "under", "below", "beneath" the second feature includes the first feature being "directly under" and obliquely below "the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are orientation or positional relationships based on those shown in the drawings, for convenience of description and simplicity of operation, and are not meant to indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the utility model. Furthermore, the terms "first," "second," and the like, are used merely for distinguishing between descriptions and not for distinguishing between them.

As shown in fig. 1, the double-station attaching device of the LED display module of the present utility model includes a profile frame 1, two film secondary attaching mechanisms arranged side by side; the film secondary laminating mechanism comprises a one-dimensional moving mechanism 2, a loading and unloading assembly 3, a heating mechanism 4 and a temperature monitoring mechanism.

The profile frame 1 is a frame body formed by 4080 profiles, is installed and fixed in an embedded pin mode, and is a foundation of the whole small equipment. The profile frame 1 can better withstand the pressure of the cylinder in the heating mechanism when it descends.

As shown in fig. 1, the one-dimensional moving mechanism 2 is arranged at the lower part in the profile frame 1, the feeding and discharging assembly 3 is arranged on the one-dimensional moving mechanism 2, and the heating mechanism 4 is arranged at the top part in the profile frame 1.

As shown in fig. 2 and 3, the one-dimensional moving mechanism adopts a screw rod conveying device 2, and comprises a reference plate 21, a slide rail cushion block 221, an auxiliary slide rail 222, a screw rod screw driving pair 223, a movable plate 23, a photoelectric sensing piece 24, a feeding level photoelectric switch 251, an origin photoelectric switch 252, a detection level photoelectric switch 253 and a servo driving motor 26; the datum plate 21 is fixed on the profile frame 1, and a screw rod and nut transmission pair 223 is arranged on the datum plate 21; the servo drive motor 26 is arranged on the reference plate 21 and positioned at the tail end of the screw rod and nut transmission pair 223; the slide rail cushion block 221 is fixed on the reference plate 21 and distributed on two sides of the screw rod and nut transmission pair 223, and the auxiliary slide rail 222 is arranged on the slide rail cushion block 221; the movable plate 23 is arranged on the auxiliary slide rail 222 and is fixedly connected with a screw in the screw transmission pair 223, a driving shaft of the servo driving motor 26 is connected with a screw in the screw transmission pair 223, and the movable plate 23 can be driven to move forwards and backwards along the auxiliary slide rail 222 through the screw transmission pair 223.

The photoelectric sensing pieces 24 are arranged at the rear side of the movable plate 23, and the left photoelectric sensing piece 24 and the right photoelectric sensing piece 24 are centrally symmetrical; the feeding position photoelectric switch 251, the origin photoelectric switch 252 and the detection position photoelectric switch 253 are respectively arranged on the feeding limit point, the origin limit point and the detection limit point on the reference plate 21 from the near to the far.

The feeding and discharging assembly 3 consists of a bottom heat insulation plate 31, a heating main body 32, a jig tool 33 and a side heat insulation plate 34. Wherein, the bottom thermal insulation plate 31 with protection function is fixedly connected with the movable plate 21, and the heating main body 32 is arranged on the bottom thermal insulation plate 31; the heating main body 32 adopts a copper plate, and a jig tool 33 is carried on the copper plate; two sides of the fixture tool 33 on the heating main body 32 are provided with side heat insulation plates 34; the fixture 34 is provided with a concave hole 331 corresponding to the position of the copper column below the lamp panel.

As shown in fig. 5, 6 and 7, the heating mechanism 4 comprises a top connecting plate 41, vertical plates 42 on two sides, a heating adjusting plate 43, a supporting plate 44, a pressing cylinder 451, a floating joint 452, a pressure sensor connecting plate 453, a pressure sensor 454, a linear bearing 461, an optical axis 462, a b temperature sensor 47, a quick-change reference plate 481, a heat roller heat insulating plate 482, a heat roller connecting plate 483 and a heat roller 484; the top connecting plate 41 is fixedly connected with the profile frame 1, the top and the bottom of the vertical plates 42 on two sides are respectively fixedly connected with the top connecting plate 41 and the supporting plate 44, the heating adjusting plate 43 is arranged on the supporting plate 44 through the waist groove 431 and screws, and can be adjusted left and right, so that the heating roller 484 is aligned left and right with the lower jig tool 33; the compressing cylinder 451 is installed on the heating adjusting plate 43, and a piston rod of the compressing cylinder 451 passes through the central through hole of the heating adjusting plate 43 and the supporting plate 44 downwards and is connected with the pressure sensor connecting plate 453 through the lower floating joint 452; the pressure sensor 454 is connected between the pressure sensor connection plate 453 and the quick-change reference plate 481; two linear bearings 461 are symmetrically provided at both sides of the pressing cylinder 451 and fixed to the heating adjustment plate 43; two optical axes 462 are installed and fixed on the quick-change reference plate 481 and pass through the shaft holes of the corresponding linear bearings 461 to assist in the movement guiding when the pressing cylinder 451 is lifted; two B temperature sensors 47 are also symmetrically provided at both sides of the pressing cylinder 451 and fixed to the heating adjustment plate 43 for detecting the temperature of the heating roller 484 at standby; the quick-change reference plate 481 and the heat roller heat insulation plate 482 are L-shaped and are buckled together, and the heat roller heat insulation plate 482 is fixedly connected below the quick-change reference plate 481 through inner hexagon bolts on the side surfaces. The heating roller 484 is broken after long-time use, and the heat-roller heat-insulating plate 482 is fixedly connected below the quick-change reference plate 481 through a hexagon socket head cap screw on the side surface, so that production personnel can conveniently replace the heating roller 484; two heating roller connecting plates 483 are fixed below two sides of the heating roller heat insulation plate 482; the heat roller 484 is installed in the middle of the two heat roller connection plates 483.

As shown in fig. 5, the a sensor bracket 71 is mounted on the profile frame 1 at the rear side of the heating mechanism; the a temperature sensor 72 is mounted on the a sensor bracket 71 for detecting the real-time temperature of the display module on the fixture 33.

When the equipment is not in operation, the feeding and discharging assembly 3 is located at the origin, and the position of the photoelectric sensing piece 24 corresponds to the origin photoelectric switch 252. The heating body and the heating roller were preheated 30 minutes before the official working. The second lamination of the display module can be performed by only one station, and the second lamination of the display module can be performed by two stations at the same time. Taking one station as an example, preheating a heating main body and a heating roller for 30 minutes, starting a servo driving motor 26, driving a feeding and discharging assembly 3 to advance through a screw rod conveying device 2, reaching a feeding level when the position of a photoelectric sensing sheet 24 corresponds to a feeding level photoelectric switch 251, and putting a display module with a film attached on film laminating equipment into a jig tool 33 according to a specified direction by production personnel; starting the servo driving motor 26 again, and driving the feeding and discharging assembly 3 to retreat to a detection position by the screw rod conveying device 2 for waiting; when the surface temperature of the display module detected by the temperature sensor 72A is greater than or equal to 80 degrees and the temperature of the heating roller 484 detected by the temperature sensor 47B is greater than or equal to 120 degrees, the pressing cylinder 451 in the heating mechanism 4 descends, the servo driving motor 26 drives the feeding and discharging assembly 3 to start to advance, and the second lamination of the display module film is performed; when the feeding and discharging assembly 3 moves to the feeding position, the secondary lamination of the display module film is completed, the compressing air cylinder 451 is lifted, and a producer takes away the re-compressed display module and replaces the next display module. Thus, continuous operation is realized in a reciprocating manner.

In addition, because the working principles of the left station and the right station are the same, and the two stations are independently controlled, a producer can select the two stations to work together, and also can always work at a single station, so that the producer can provide various choices according to production requirements.

The utility model is not limited to the above embodiment, and the feeding and discharging assembly can be changed into a fixed one, and a screw rod device is arranged above the heating mechanism to move forwards and backwards; the servo motor in the screw rod device can also be replaced by a stepping motor. Those skilled in the art can also make appropriate changes and modifications to the above-described embodiments in light of the cues and teachings of the above specification. Therefore, the utility model is not limited to the specific embodiments shown and described above, but rather, modifications and changes thereto should be considered as falling within the scope of the appended claims. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present utility model in any way.

Claims (10)

1. The film secondary laminating equipment of the LED display module is characterized by comprising at least one film secondary laminating mechanism, wherein the film secondary laminating mechanism comprises a feeding and discharging assembly (3) and a heating mechanism (4); the feeding and discharging assembly (3) comprises a heating main body (32) and a fixture tool (33) fixed on the heating main body; the heating mechanism (4) comprises a pressing cylinder (451) and a heating roller (484) connected with a piston rod of the pressing cylinder (451); the heating mechanism (4) is positioned above the feeding and discharging assembly (3), and the feeding and discharging assembly and the heating mechanism can move relatively in one dimension, so that the heating roller (484) rolls over the display module of the film attached on the fixture tool (33) under the action of the pressing cylinder (451).

2. The device for the film secondary lamination of the LED display module according to claim 1, further comprising a one-dimensional moving mechanism, wherein the feeding and discharging assembly (3) is arranged on the one-dimensional moving mechanism.

3. The film secondary attaching device of an LED display module according to claim 2, further comprising a profile frame (1), said one-dimensional moving mechanism (2) being disposed at a lower portion in the profile frame (1), and said heating mechanism (4) being disposed at a top portion in the profile frame (1).

4. The device for secondarily attaching the thin film of the LED display module according to claim 3, wherein the one-dimensional moving mechanism comprises a reference plate (21), a slide rail cushion block (221), an auxiliary slide rail (222), a screw-nut transmission pair (223) and a movable plate (23); a servo drive motor (26); the reference plate (21) is fixed on the profile frame (1), and the screw rod and nut transmission pair (223) is arranged on the reference plate (21); the servo driving motor (26) is arranged on the reference plate (21) and is positioned at the tail end of the screw rod and nut transmission pair (223); two slide rail cushion blocks (221) are fixed on the reference plate (21) and distributed on two sides of the screw rod and screw nut transmission pair (223), and auxiliary slide rails (222) are arranged on the slide rail cushion blocks (221); the movable plate (23) is arranged on the auxiliary sliding rail (222) and is fixedly connected with a screw in the screw transmission pair (223), and the servo driving motor (26) drives the movable plate (23) to move back and forth along the auxiliary sliding rail (222) through the screw transmission pair (223).

5. The device for the film secondary lamination of the LED display module according to claim 4, wherein the one-dimensional moving mechanism further comprises a photoelectric sensing piece (24), a feeding photoelectric switch (251), an origin photoelectric switch (252) and a detection photoelectric switch (253); the photoelectric sensing piece (24) is arranged at the rear side of the movable plate (23); the charging position photoelectric switch (251), the origin photoelectric switch (252) and the detection position photoelectric switch (253) are respectively arranged at a charging limit point, an origin limit point and a detection limit point on the reference plate (21).

6. The secondary film laminating equipment of the LED display module according to claim 2, wherein the feeding and discharging assembly (3) further comprises a bottom heat insulation plate (31); the bottom heat insulation plate (31) is arranged on the one-dimensional moving mechanism, and the heating main body (32) is fixed on the bottom heat insulation plate (31); two sides of the fixture tool (33) on the heating main body (32) are provided with side heat insulation plates (34).

7. The apparatus for secondary lamination of thin films of LED display modules according to claim 3, wherein the heating mechanism (4) further comprises a top connecting plate (41), two side vertical plates (42), a heating adjusting plate (43), a supporting plate (44), a floating joint (452), a pressure sensor connecting plate (453), a pressure sensor (454), a quick-change reference plate (481), a heat roller insulating plate (482) and a heat roller connecting plate (483); the top connecting plate (41) is fixedly connected with the profile frame (1), the top and the bottom of the vertical plates (42) on two sides are respectively fixedly connected with the top connecting plate (41) and the supporting plate (44), the heating adjusting plate (43) is arranged on the supporting plate (44) through a waist groove (431) and a screw, the compressing air cylinder (451) is arranged on the heating adjusting plate (43), and a piston rod of the compressing air cylinder (451) downwards penetrates through central through holes of the heating adjusting plate (43) and the supporting plate (44) and is connected with the pressure sensor connecting plate (453) through a floating joint (452) below; the pressure sensor (454) is connected between the pressure sensor connecting plate (453) and the quick-change reference plate (481); the heat roller heat insulation plate (482) is fixedly connected below the quick-change reference plate (481); two heating roller connecting plates (483) are fixed below two sides of the heating roller heat insulation plate (482); the heating roller (484) is installed in the middle of the two heating roller connecting plates (483).

8. The apparatus for secondary lamination of thin films of LED display modules according to claim 7, characterized in that said heating mechanism (4) further comprises a linear bearing (461), an optical axis (462), and a B-temperature sensor (47); two linear bearings (461) are symmetrically arranged at two sides of the compression cylinder (451) and are fixed on the heating adjusting plate (43); two optical axes (462) are fixedly arranged on the quick-change reference plate (481) and pass through shaft holes of the corresponding linear bearings (461); the two B temperature sensors (47) are symmetrically arranged at both sides of the pressing cylinder (451) and fixed on the heating adjusting plate (43).

9. The secondary film laminating apparatus for an LED display module according to claim 7, wherein the quick-change reference plate (481) and the heat roller heat insulating plate (482) are both L-shaped, and are fastened together and are fixed together by side socket head cap screws.

10. A thin film secondary bonding apparatus of an LED display module according to claim 3, further comprising an a sensor bracket (71) and an a temperature sensor (72); the sensor bracket (71) is arranged on the profile frame (1) and positioned at the rear side of the heating mechanism; an A-temperature sensor (72) is mounted on the A-sensor holder (71).