Pressing device

Abstract

The invention relates to the technical field of display, in particular to a pressing device. Comprising a support, the support comprises two first supporting pieces and a first connecting piece connected between the two first supporting pieces, and the two oppositely-arranged side faces of the two first supporting pieces and the first connecting piece jointly define a mounting space; the rolling mechanism is arranged in the mounting space, and the two ends of the rolling mechanism are rotationally connected with the two first supporting pieces correspondingly; the driving mechanism is connected with the first connecting piece and used for driving the support to move; wherein the rolling mechanism comprises a roller and a plurality of elastic brushes uniformly arranged on the outer circumferential surface of the roller, and the elastic brushes are gradually thinned from the root to the end. According to the pressing device, back pressing can be carried out uniformly after the diffusion plate support, the light bar, the reflector plate and other parts are all fixed to the back plate, back pressing of different parts can be achieved through one-time back pressing operation of the back pressing device, the back pressing efficiency and the back pressing yield are improved, and labor hour loss and manpower waste are reduced.

Description

Technical Field

[0001] The present disclosure relates to the field of display technologies, and particularly to a pressing device. Background Art

[0002] During the production process of a TV backlight module, components such as diffuser brackets, lamp strips, and reflectors with different sizes and shapes are used. These components are mainly assembled to the backplane by gluing or taping. After the assembly of each process is completed, additional manual re-pressing is often required. The re-pressing methods for different components are different, and tools that cooperate with them one by one need to be used for re-pressing on a fixed path. Therefore, a large amount of man-hour loss and labor waste are caused, and there is a contingency in manual re-pressing, which will cause a certain probability of defective products. Summary of the Invention

[0003] To solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a pressing device.

[0004] The present disclosure provides a pressing device, including:

[0005] A bracket, including two first support members and a first connecting member connected between the two first support members. An installation space is jointly defined between the two opposite side surfaces of the two first support members and the first connecting member;

[0006] A rolling mechanism is disposed in the installation space, and both ends of the rolling mechanism are rotatably connected to the two first support members respectively;

[0007] A driving mechanism is connected to the first connecting member and is used to drive the bracket to move;

[0008] Wherein, the rolling mechanism includes a roller and a plurality of elastic brushes uniformly arranged on the outer circumferential surface of the roller. The elastic brushes gradually taper from the root to the end.

[0009] In some embodiments, the elastic brushes are arranged in multiple columns along the circumferential direction of the roller on the outer circumferential surface of the roller, and the adjacent two columns of elastic brushes are arranged staggeredly.

[0010] In some embodiments, a cavity is provided inside the roller, and a counterweight is arranged in the cavity.

[0011] In some embodiments, the pressing device further includes a detection mechanism. The number of the detection mechanisms is at least two, and at least two detection mechanisms are respectively arranged on the two first support members and are used to detect the relative position between the roller and the component to be pressed.

[0012] In some embodiments, the detection mechanism includes:

[0013] A housing, an installation channel is provided inside the housing, one end of the housing is closed, and the other end is provided with an installation opening communicating with the installation channel;

[0014] An elastic member is arranged inside the housing, and one end of the elastic member is connected to the closed end of the housing;

[0015] A probe, the probe has a first end and a second end along the length direction, the first end is inserted into the housing from the installation opening and is connected to the elastic member, and the second end is located outside the housing and protrudes from the end of the lowermost elastic brush;

[0016] A sensor is arranged on the housing for detecting the position of the probe.

[0017] In some embodiments, the probe includes a first connection segment and a second connection segment connected in sequence from the first end to the second end, the first connection segment is located inside the installation channel, and the second connection segment extends out of the housing from the installation opening.

[0018] In some embodiments, a controller is further included, and the controller is connected between the driving mechanism and the sensor, and is configured to control the driving mechanism to drive the rolling mechanism to move when all the sensors detect signals simultaneously.

[0019] In some embodiments, the driving mechanism is connected to the first connecting member through a one-way chain.

[0020] In some embodiments, when the second end of the probe moves to a position flush with the sensor, the first end of the probe does not exceed the end of the lowermost elastic brush.

[0021] In some embodiments, an alarm is further included, and the alarm is connected to the controller for emitting an alarm indication when any one of the sensors does not detect a signal.

[0022] The technical solution provided by the embodiments of the present disclosure has the following advantages compared with the prior art:

[0023] The pressing device provided by the embodiments of the present application uses the rolling mechanism to perform re-pressing on parts such as a diffusion plate bracket, a light bar, and a reflector pasted on the back plate. Since a plurality of elastic brushes are uniformly arranged on the outer circumferential surface of the roller of the rolling mechanism, and the elastic brushes gradually become thinner from the root to the end, an avoidance space is formed between adjacent elastic brushes.

[0024] During use, first fix parts such as the diffusion plate bracket, lamp strip, and reflector on the corresponding positions of the backplane using glue or tape, and then perform backpressure using the pressing device provided in the embodiment of the present application. During the backpressure process, the roller and the bracket move forward under the drive of the drive mechanism. The gravity of the roller itself provides the pressure in the vertical direction, and the drive mechanism provides the tensile force in the horizontal direction. During the backpressure process, when encountering the diffusion plate bracket and the lamp strip, since an avoidance space is formed between adjacent elastic brushes, the elastic brushes can adaptively bounce away the non-backpressure lamp beads on the lamp strip and avoid the support structure on the diffusion plate bracket, and only provide pressure on the base of the diffusion plate bracket and the backpressure structure on the lamp beads.

[0025] The pressing device can perform unified backpressure after components such as the diffusion plate bracket, lamp strip, and reflector are fixed on the backplane, and can achieve the backpressure of different components through a single backpressure operation of a backpressure device, improving the backpressure efficiency and the yield rate of backpressure, and reducing the loss of working hours and waste of manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present disclosure and used together with the specification to explain the principles of the present disclosure.

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the accompanying drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0028] Figure 1 Structural schematic diagram of the pressing device according to the embodiment of the present disclosure;

[0029] Figure 2 Front view of the pressing device according to the embodiment of the present disclosure;

[0030] Figure 3 Schematic diagram of the structure of the rolling mechanism according to the embodiment of the present application;

[0031] Figure 4 Axonometric view of the rolling mechanism according to the embodiment of the present application;

[0032] Figure 5 Schematic diagram of the structure of the bracket according to the embodiment of the present application;

[0033] Figure 6 Front view of the bracket according to the embodiment of the present application;

[0034] Figure 7 Schematic diagram of the structure of the detection mechanism according to the embodiment of the present application;

[0035] Figure 8 A cross-sectional view of the detection mechanism described in the embodiments of the present application;

[0036] Figure 9 A schematic structural diagram of the probe described in the embodiments of the present application;

[0037] Figure 10 A schematic structural diagram of the diffusion plate bracket described in the embodiments of the present disclosure.

[0038] Wherein, 1. Bracket; 101. First connecting member; 102. First supporting member; 1021. Mounting hole; 2. Rolling mechanism; 201. Roller; 202. Elastic brush; 3. Detection mechanism; 301. Probe; 3011. First connecting section; 3012. Second connecting section; 302. Outer shell; 303. Elastic member; 304. Sensor; 4. One-way chain; 5. Diffusion plate bracket; 501. Base; 502. Supporting structure; 521. Cross beam; 522. Support rod. Detailed implementation manners

[0039] In order to more clearly understand the above-mentioned objects, features and advantages of the present disclosure, the solutions of the present disclosure will be further described below. It should be noted that, without conflict, the embodiments of the present disclosure and the features in the embodiments may be combined with each other.

[0040] Many specific details are set forth in the following description in order to fully understand the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only a part of the embodiments of the present disclosure, rather than all of the embodiments.

[0041] It should be noted that the directional indications (such as up, down, left, right, front, back...) in the present invention are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0042] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more.

[0043] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances. Additionally, when describing pipelines, the terms "connected" and "coupled" used in the present application have the meaning of conducting. The specific meaning needs to be understood in combination with the context.

[0044] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design solution described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or having more advantages than other embodiments or design solutions. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0045] The backlight module of a liquid crystal television mainly consists of a backplane, LED lights, a diffusion plate bracket, a reflector, and other components. The LED lights are in a long strip shape. The LED lights, the diffusion plate, and the reflector bracket are pasted onto the backplane with glue or tape. This structure of pasting with glue or tape requires additional manual assisted backpressure to ensure the pasting effect.

[0046] The above-mentioned backlight components that need to be pasted are in different processes. That is, in different process sections, the operator needs to hold a hard rubber tooling (the tooling comes with its own weight) and perform backpressure with different operating methods. The cumbersome and complex backpressure process results in a large increase in product man-hours and personnel costs. The operator's long-term mechanical repetitive operation makes it difficult to avoid a certain probability of backpressure defective products.

[0047] To solve this technical problem, the embodiments of the present application provide a pressing device. After all components such as the diffusion plate bracket, the light bar, and the reflector are completely pasted, the pressing device is used for one-time backpressure to achieve the backpressure effect on different components.

[0048] Specifically, as Figures 1 to 9 shown, the pressing device provided by the embodiments of the present application includes:

[0049] A bracket 1, the bracket 1 includes two first support members 102 and a first connecting member 101 connected between the two first support members 102. The two first support members 102 are arranged in parallel. The two ends of the first connecting member 102 are respectively connected to the ends of the two first support members 102. A mounting space is jointly enclosed between the two opposite side surfaces of the two first support members 102 and the first connecting member 101;

[0050] The rolling mechanism 2 is arranged in the installation space, and both ends of the rolling mechanism 2 are respectively rotatably connected to two first support members 102;

[0051] The driving mechanism (not shown in the figure) is connected to the first connecting member 101 and is used to drive the bracket 1 to move; since the rolling mechanism 2 is rotatably connected to the two first support members 102 of the bracket 1, when the bracket 1 moves, the rolling mechanism 2 will move synchronously with the bracket 1;

[0052] Wherein, the rolling mechanism 2 includes a roller 201 and a plurality of elastic brushes 202 uniformly arranged on the outer circumferential surface of the roller 201. The elastic brushes 202 gradually taper from the root to the end, so as to form a clearance between any two adjacent elastic brushes 202.

[0053] The "root of the elastic brush 202" refers to the end where the elastic brush 202 is connected to the outer circumferential surface of the roller 201, and the "end of the elastic brush 202" refers to the end where the elastic brush 202 is far from the outer circumferential surface of the roller 201. The elastic brushes 202 gradually taper from the root to the end, so that the distance between two adjacent elastic brushes 202 gradually increases along the direction away from the roller 201, so as to form a clearance between any two elastic brushes 202. The setting of the clearance is to avoid the non-repressible structures on the back pressure surface. For example, the support structure of the diffusion plate bracket and the lamp beads on the lamp strip, etc.

[0054] The size of the clearance is related to the number of elastic brushes 202, the arrangement mode of the elastic brushes 202 on the roller 201, the diameter and length of the elastic brushes 202 themselves, and the size of the structure to be avoided. Adjusting any of the above parameters will affect the size of the clearance. Here, we do not make specific limitations on the size of the clearance, and those skilled in the art can set it according to actual needs.

[0055] During use, first fix components such as the diffusion plate bracket 5, the lamp strip, and the reflector on the corresponding positions of the back plate with glue or tape, and then perform back pressure using the pressing device provided in the embodiment of the present application.

[0056] Such as Figure 10As shown, the diffusion plate bracket 5 includes a base 501 and a support structure 502 provided on the base 501. The support structure 502 includes an arched cross beam 521 and support rods 522. Both ends of the cross beam 521 are fixedly connected to the base 501, and the middle part of the cross beam 521 arches away from the base 501. The support rods 522 are connected to the middle part of the cross beam 521 in a direction perpendicular to the base 501. When the diffusion plate bracket 5 is installed, the base 501 is attached to the back plate, and the cross beam 521 and the support rods 522 are located on the other side of the base 501 away from the back plate. When applying back pressure, it is necessary to avoid the cross beam 521 and the support rods 522 and apply pressure to the base 501. When the lamp beads are under back pressure, it is necessary to avoid the lamp beads on the lamp strip.

[0057] During the back pressure process, the roller 201 and the bracket 1 move forward under the drive of the drive mechanism. The gravity of the roller 201 itself provides the pressure perpendicular to the back pressure surface, and the drive mechanism provides the pulling force parallel to the back pressure surface. During the back pressure process, when encountering the diffusion plate bracket 5 and the lamp strip, since an avoidance gap is formed between adjacent elastic brushes 202, the elastic brushes 202 can adaptively bounce away the non-back-pressure lamp beads on the lamp strip and avoid the support structure 502 on the diffusion plate bracket 5, and only apply pressure to the base 501 of the diffusion plate bracket 5 and the back-pressureable structures on the lamp beads.

[0058] The pressing device can perform back pressure uniformly after components such as the diffusion plate bracket 5, the lamp strip, and the reflector are fixed on the back plate, and can achieve the back pressure of different components through one back pressure operation of a back pressure device, improving the back pressure efficiency and the qualified rate of back pressure, and reducing the man-hour loss and manpower waste.

[0059] Specifically, the roller 201 is made of PVC material, polyvinyl chloride, abbreviated as PVC in English. PVC is a polymer formed by vinyl chloride monomer (VCM) through free radical polymerization reaction mechanism under the action of initiators such as peroxides and azo compounds or under the action of light and heat. Vinyl chloride homopolymers and vinyl chloride copolymers are collectively called vinyl chloride resins.

[0060] In some embodiments of the present application, the roller 201 is made of soft PVC material, and the elastic brush 202 is made of silica gel material. When the elastic brush 202 contacts other structures, it will undergo a certain deformation, and when the contact disappears, it can automatically return to its original state, which can achieve a good obstacle avoidance effect.

[0061] The elastic brush 202 made of silica gel material will not cause wear to the surface of the lamp beads. Its tip is relatively thin, and a clearance is formed between adjacent elastic brushes 202. When it moves to the surface of the lamp beads, the lamp beads push the elastic brush 202 away, causing the elastic brush 202 to slide past the edge of the lamp beads, without causing wear to the surface of the lamp beads and without affecting the pressing effect on the structure that needs to be pressed back on the lamp strip. The clearance enables the support structure on the diffusion plate bracket to pass through, causing the elastic brush to avoid the support structure on the diffusion plate bracket and preventing damage to the support structure.

[0062] Further, in some embodiments of the present application, the elastic brushes 202 are arranged in multiple columns along the circumferential direction of the roller 201 on the outer circumferential surface of the roller 201, and two adjacent columns of elastic brushes 202 are arranged staggeredly. During the process of the driving mechanism driving the bracket 1 to move, the roller 201 rolls forward, and the elastic brushes 202 achieve full coverage of the movement path on the movement path, and can provide pressure to as many positions as possible that need to be pressed back.

[0063] During the pressing-back process of the rolling press mechanism 2, the pressure applied to the pressing-back surface is provided by the gravity of the rolling press mechanism 2 itself. Therefore, the roller 201 needs to have a certain weight. The roller 201 can be hollow or partially solid, and different weights can be added to the roller 201 to achieve different magnitudes of pressing-back force.

[0064] Specifically, in combination with Figure 4 As shown, in some embodiments of the present application, a cavity is provided inside the roller 201, and a counterweight block is arranged in the cavity. The counterweight block can be taken out from the end opening of the roller 201. When it is necessary to adjust the pressing-back force of the rolling press mechanism 2, it can be achieved by replacing counterweight blocks of different weights. When a larger pressing-back force is required, a heavier counterweight block is replaced; when a smaller pressing-back force is required, a lighter counterweight block is replaced, which can be applicable to the pressing-back requirements of different products and has a certain degree of versatility.

[0065] Both ends of the roller 201 along the axial direction are respectively rotationally connected to two first support members 102 through bearings, enabling the roller 201 to roll in a fixed direction.

[0066] Specifically, in combination with Figure 5 and Figure 6As shown, the first support member 102 is provided with mounting holes 1021. The mounting holes 1021 on the two first support members 102 are arranged oppositely, and the distances between the center lines of the mounting holes 1021 on the two first support members 102 and the first connecting member 101 are equal. Both ends of the roller 201 are provided with rotating shafts, and the rotating shafts are rotatably connected to the first support member 102 through bearings in the mounting holes 1021. The two rotating shafts are coaxially arranged with the roller 201. The distance between the axis of the roller 201 and the first connecting member 101 is greater than the distance between the axis of the roller 201 and the end of the elastic brush 202, so that when the roller 201 rotates, the elastic brush 202 and the first connecting member 101 do not interfere with each other, and when the roller 201 rolls, the elastic brushes 202 in the same column contact the back pressure surface simultaneously, and the back pressure effect of the rolling mechanism 2 in the axial direction is the same.

[0067] Further, in some embodiments of the present application, the pressing device further includes a detection mechanism 3. The number of the detection mechanisms 3 is at least two, and at least two detection mechanisms 3 are respectively arranged on the two first support members 102 for detecting the relative position between the roller 201 and the back pressure surface.

[0068] Specifically, in some embodiments of the present application, the number of the detection mechanisms 3 is two, and the two detection mechanisms 3 are respectively fixed on the outer sides of the first support members 102. When the back pressure device starts to move from the initial position, the back pressure device starts to approach the back pressure surface. During this process, the detection mechanism 3 detects the distance from the pressing surface. When moving in place, the rolling mechanism 2 starts to roll and perform the back pressure action.

[0069] Of course, the number of the detection mechanisms 3 is not limited to two, and can also be three, four or more.

[0070] Further, as shown in Figures 7 to 9 In some embodiments of the present application, the detection mechanism 3 includes:

[0071] A housing 302, the housing 302 is a thin-walled structure with a hollow interior, and an installation channel is provided inside the housing. One end of the housing 302 is closed, and the other end is provided with an installation port communicating with the installation channel;

[0072] An elastic member 303, arranged in the installation channel, and one end of the elastic member 303 is connected to the closed end of the housing 302;

[0073] A probe 301, the probe 301 has a first end and a second end along the length direction. The first end is inserted into the installation channel from the installation port and is connected to the elastic member 303. The second end is located outside the housing 302 and protrudes from the end of the lowermost elastic brush 202; during the process that the back pressure device approaches the back pressure surface, the second end of the probe first contacts the back pressure surface.

[0074] The sensor 304 is provided on the outer shell 302 and is used to detect the position of the probe 301.

[0075] Specifically, the outer shell 302 is fixed on the outer side surface of the first support member 102. The installation channel is arranged along the length direction of the first support member 102, that is, along the up and down direction. The upper end of the outer shell 302 is provided with a top cover to close the upper end of the installation channel, and the lower end is open to form an installation opening.

[0076] The elastic member 303 is a spring, and the upper end of the spring is fixedly connected to the top cover;

[0077] The sensor 304 is arranged on the side wall of the outer shell 302. The detection range of the sensor 304 is located in a plane parallel to the length direction of the probe 301. When the probe 301 is only affected by gravity and the pulling force of the spring, the sensor 304 corresponds to the spring, and the first end of the probe 301 is located below the sensor 304. At this time, the sensor 304 cannot detect the position of the probe 301.

[0078] When the probe 301 contacts the back pressure surface, it moves upward. When the second end of the probe 301 is flush with the sensor 304, the second end of the probe 301 enters the detection range of the sensor 304, and the sensor 304 detects the probe 301, indicating that the movement of the rolling mechanism 2 in the up and down direction is in place, and the rotation of the roller 201 can be controlled to start the back pressure action.

[0079] Further, in combination with Figure 9 As shown, the probe 301 includes a first connection section 3011 and a second connection section 3012 connected in sequence from the first end to the second end. The first connection section 3011 is located in the installation channel, and the second connection section 3012 extends out of the outer shell 302 from the installation opening. The cross-sections of both the first connection section 3011 and the second connection section 3012 are circular, and the area of the cross-section of the first connection section 3011 is greater than the sum of the area of the cross-section of the second connection section 3012 and the area of the installation opening.

[0080] In this way, the first connection section 3011 slides in the installation channel in the up and down direction and cannot escape from the outer shell 302 through the installation opening, improving the stability of the overall structure of the detection mechanism 3.

[0081] Further, in order to ensure the stability of the movement process of the probe 301, the diameter of the first connection section 3011 can be set to be equal to or slightly smaller than the diameter of the installation channel, ensuring that the first connection section 3011 can move up and down in the installation channel without obstruction and ensuring that the probe 301 does not deviate during the up and down movement.

[0082] The diameter of the installation channel is larger than that of the installation opening. The first connecting section slides up and down within the installation channel and cannot slip out from the installation opening. The diameter of the second connecting section is equal to or slightly smaller than the bracket of the installation opening, and the installation opening has a certain constraining effect on the second connecting section to prevent the second connecting section from tilting.

[0083] Furthermore, in some embodiments of the present application, raised sliders can be provided on the side wall of the installation channel, and chutes can be provided on the side wall of the probe 301, or chutes can be provided on the side wall of the installation channel, and raised sliders can be provided on the side wall of the probe 301. The sliders and the chutes are both arranged along the length direction of the probe 301, and the sliders are in sliding fit with the chutes to limit the moving direction of the probe 301, so that the probe 301 will not shift during up and down movement.

[0084] Further, in some embodiments of the present application, the pressing device further includes a controller, which is connected between the driving mechanism and the sensor 304 and is used to control the driving mechanism to drive the rolling mechanism 2 to move forward when all the sensors 304 detect signals simultaneously.

[0085] Specifically, in some embodiments of the present application, the pressing device includes two detection mechanisms 3, which are respectively arranged on both sides of the bracket 1 and are arranged at the same height. That is to say, during the process that the center line of the roller 201 is parallel to the return pressure surface and the rolling mechanism 2 moves towards the direction close to the return pressure surface, the two detection mechanisms 3 should contact the return pressure surface simultaneously, and the sensors 304 of the two detection mechanisms 3 should detect signals simultaneously. If only one sensor 304 detects a signal and the other does not, it means that the rolling mechanism 2 has tilted, or the rolling mechanism 2 has not moved to the set starting position of the return pressure, resulting in the probe 301 of one of the detection mechanisms 3 not being in normal contact with the return pressure surface. At this time, the controller issues an alarm signal, and the driving mechanism will not drive the rolling mechanism 2 to move forward.

[0086] When the two sensors 304 detect signals simultaneously, the controller controls the rolling mechanism 2 to move forward to start the return pressure action, which can effectively ensure that the rolling mechanism 2 does not tilt during the return pressure process, avoid the problem that some areas on the return pressure path cannot be effectively returned, ensure the effectiveness of the return pressure work, and improve the return pressure efficiency.

[0087] Further, in some embodiments of the present application, the driving mechanism and the first connecting piece 101 are connected by a one-way chain 4.

[0088] When the backpressure operation starts, the driving mechanism pulls the one-way chain 4 to move. At this time, the bending direction of the one-way chain 4 is consistent with the traveling direction. Therefore, in the direction perpendicular to the backpressure surface, the rolling mechanism 2 provides pressure to the backpressure surface, and this pressure is mainly provided by the gravity of the rolling mechanism 2 and the counterweight. In the direction parallel to the backpressure surface, the one-way chain 4 provides a pulling force to the rolling mechanism 2, driving the roller 201 to roll on the backpressure surface, thereby achieving the backpressure effect on the entire backpressure surface.

[0089] Further, in some embodiments of the present application, when the second end of the probe 301 moves to a position flush with the sensor 304, the first end of the probe 301 does not exceed the end of the lowermost elastic brush 202.

[0090] That is to say, when the probe 301 has not moved to a position flush with the sensor 304, the brush on the roller 201 has already started to contact the backpressure surface. In this way, when the probe 301 moves to a position flush with the sensor 304, the brush on the roller 201 contacts the backpressure surface to provide a backpressure. When the probe 301 moves to a position flush with the sensor 304, the controller controls the driving mechanism to act, driving the rolling mechanism 2 to move. When the rolling mechanism 2 contacts the backpressure surface, it can provide a certain backpressure, avoiding the problem that the rolling mechanism 2 does not contact the backpressure surface during movement and affecting the backpressure effect.

[0091] Further, in some embodiments of the present application, the backpressure device further includes an alarm, which is connected to the controller and is used to emit an alarm indication when any one of the sensors 304 does not detect a signal.

[0092] Exemplarily, when only one sensor 304 detects a signal and the other does not, it indicates that the rolling mechanism 2 is tilted, or the rolling mechanism 2 has not moved to the set backpressure starting position, resulting in the probe 301 of one of the detection mechanisms 3 not normally contacting the backpressure surface. At this time, the controller controls the alarm to emit an alarm signal to remind the operator to adjust the position of the rolling mechanism 2 to ensure the backpressure effect.

[0093] The alarm can emit a sound alarm signal or a light alarm signal to remind the operator that the rolling mechanism 2 needs to be adjusted. During the forward movement of the rolling mechanism 2, the detection mechanism 3 always conducts detection to ensure that the roller 201 does not tilt during the backpressure process, so as to ensure that backpressure can be performed on the moving path of the roller 201, improving the effectiveness of the backpressure process.

[0094] It should be noted that in the embodiments of the present application, the sensor used in the detection device is a position sensor, which can detect the position of the probe, determine whether the rolling mechanism has moved in place according to the position of the probe, and further determine whether the rolling mechanism can be driven to move to start backpressure.

[0095] The driving mechanism can adopt structures such as electric cylinders and lead screws. By connecting with a one-way chain, it drives the rolling mechanism and the bracket to move for the backpressure operation.

[0096] In summary, for the pressing device provided in the embodiment of the present application, the detection mechanism 3 detects whether the rolling mechanism 2 is located at the set initial backpressure position. When the rolling mechanism 2 moves to the set initial backpressure position, the driving mechanism drives the rolling mechanism 2 to move along a preset path. Since the elastic brush 202 is provided on the roller 201 and there is an avoidance gap between adjacent elastic brushes 202, when passing the light bar or the diffusion plate bracket 5 on the backpressure path, it can adaptively avoid the non-backpressureable lamp beads on the light bar and the elastic support frames on the diffusion plate bracket 5, and only provide pressure to the base of the diffusion plate bracket and the backpressureable structures on the lamp beads. With the pressing device of the present application, the backpressure can be uniformly performed after components such as the diffusion plate bracket, the light bar, and the reflector are fixed on the backplane, and the backpressure of different components can be achieved through a single backpressure operation of one backpressure device, improving the backpressure efficiency and the qualified rate of backpressure, reducing the man-hour loss and manpower waste, avoiding multiple pressing processes, and improving the pressing effect.

[0097] The above are only specific embodiments of the present disclosure, enabling those skilled in the art to understand or implement the present disclosure. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to these embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A laminating device, characterized in that, Comprising: A bracket, including two first support members and a first connecting member connected between the two first support members. An installation space is jointly defined between the two opposite side surfaces of the two first support members and the first connecting member; A rolling mechanism, disposed in the installation space, and both ends of the rolling mechanism are rotatably connected to the two first support members respectively; A driving mechanism, connected to the first connecting member, for driving the bracket to move; Wherein, the rolling mechanism includes a roller and a plurality of elastic brushes uniformly arranged on the outer circumferential surface of the roller. The elastic brushes gradually taper from the root to the end, so as to form a clearance gap between any two adjacent elastic brushes.

2. The lamination device according to claim 1, characterized in that, The elastic brushes are arranged in multiple columns along the circumferential direction of the roller on the outer circumferential surface of the roller, and the adjacent two columns of elastic brushes are arranged staggeredly.

3. The laminating device according to claim 1, characterized in that, A cavity is provided inside the roller, and a counterweight is arranged in the cavity.

4. The lamination device according to claim 1, characterized in that, The pressing device further includes a detection mechanism. The number of the detection mechanisms is at least two. At least two detection mechanisms are respectively arranged on the two first support members for detecting the relative position between the roller and the workpiece to be pressed.

5. The lamination device according to claim 4, characterized in that, The detection mechanism includes: A housing, an installation channel is provided inside the housing, and one end of the housing is closed, and the other end is provided with an installation port communicated with the installation channel; An elastic member, disposed inside the housing, and one end of the elastic member is connected to the closed end of the housing; A probe, the probe has a first end and a second end along the length direction. The first end is inserted into the housing from the installation port and is connected to the elastic member. The second end is located outside the housing and protrudes from the end of the lowermost elastic brush; A sensor, disposed on the housing, for detecting the position of the probe.

6. The pressing device according to claim 5, characterized in that, The probe includes a first connection section and a second connection section connected in sequence from the first end to the second end. The first connection section is located in the installation channel, and the second connection section extends out of the housing from the installation port.

7. The laminating device according to claim 5, wherein, It further includes a controller, and the controller is connected between the driving mechanism and the sensor, and is used for controlling the driving mechanism to drive the rolling mechanism to move when all the sensors detect signals simultaneously.

8. The lamination device according to claim 5, wherein, When the second end of the probe moves to a position flush with the sensor, the first end of the probe does not exceed the end of the lowermost elastic brush.

9. The lamination device according to claim 1, wherein, The driving mechanism and the first connecting member are connected by a one-way chain.

10. The lamination device according to claim 1, wherein, It further includes an alarm, and the alarm is connected to the controller, and is used for emitting an alarm signal when any one of the sensors does not detect a signal.

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