Automatic rubberizing production line
Technical Field
The invention belongs to the technical field of rubberizing equipment, and particularly relates to an automatic rubberizing production line.
Background
Various liquid crystal display need paste in industrial production and paste to the fixed bolster on, need paste double-sided tape around liquid crystal display's backplate in advance during the subsides dress, it is artifical at present to paste double-sided tape's one side on the backplate, when liquid crystal display need paste to the fixed bolster on, peel off the barrier paper of double-sided tape another side on the backplate again, paste the liquid crystal display to the fixed bolster through double-sided tape on. At present, one surface of a double-sided tape is manually adhered to a back plate in advance, the adhering efficiency is low, the adhering position precision of the double-sided tape is difficult to guarantee, and the quality of adhering a subsequent liquid crystal display screen to a fixed support is reduced.
Disclosure of Invention
The invention provides an automatic adhesive tape pasting production line, aiming at solving the problems that in the prior art, a double-sided adhesive tape is pasted on a back plate of a liquid crystal display screen manually, the pasting efficiency is low, and the pasting position precision is difficult to guarantee.
In order to solve the technical problems, the technical scheme adopted by the invention is that the automatic rubberizing production line comprises a feeding conveying mechanism, a feeding robot, a CCD transfer station, a transfer robot, a rubberizing mechanism, a discharging robot and a discharging conveying mechanism which are sequentially arranged, wherein the rubberizing mechanism comprises a rubberizing conveying device and a rubberizing device;
the feeding robot is used for transferring a product to be rubberized in the feeding conveying mechanism to the CCD transfer station, the transfer robot is used for transferring the product to be rubberized of the CCD transfer station to the input end of the rubberizing conveying device, the rubberizing device is used for surface rubberizing of the product to be rubberized on the rubberizing conveying device, and the discharging robot is used for transferring the rubberized product at the output end of the rubberizing conveying device to the discharging conveying mechanism.
Preferably, the adhesive tape sticking device comprises a product lifting assembly, an adhesive tape disc mounting assembly, a traction adhesive tape assembly, a shearing adhesive tape assembly and an automatic adhesive tape rolling assembly, wherein the adhesive tape disc mounting assembly, the traction adhesive tape assembly, the shearing adhesive tape assembly and the automatic adhesive tape rolling assembly are sequentially arranged; the traction adhesive tape assembly, the shearing adhesive tape assembly and the automatic rolling adhesive tape assembly are arranged in a sliding mode along the conveying direction of the rubberizing conveying device;
the product lifting assembly comprises a lifting cylinder and a lifting motor, the lifting cylinder is used for driving the to-be-rubberized product on the rubberizing conveying device to move up and down, the lifting motor is used for driving the to-be-rubberized product to rotate in the horizontal plane, and the product lifting assembly is close to or far away from the automatic rolling adhesive tape assembly in the horizontal plane to move. When the rubberizing conveying device conveys the product to be rubberized to the rubberizing station, the rubberizing conveying device suspends conveying the product to be rubberized, simultaneously, the lifting cylinder is started to lift a product to be rubberized away from the rubberizing conveying device, the pneumatic clamping jaws clamp the adhesive tape again and move to the rubberizing starting point of one side of the product along the conveying direction of the rubberizing conveying device, the support driving mechanism drives the rolling support to drive the rolling wheel to press downwards, at the moment, the rolling wheel presses the end part of the adhesive tape to the rubberizing starting point of the side of the product (the side, close to the product, of the adhesive tape is free of adhesive paper, the side, far away from the product, of the adhesive tape is provided with the adhesive paper), the pneumatic clamping jaws loosen the adhesive, meanwhile, the pneumatic clamping jaw and the roller simultaneously move to the rubberizing terminal point of the side of the product along the conveying direction of the rubberizing conveying device, when the roller moves to the gluing end point of the side of the product, the shearing cylinder drives the scissors to close and shear the adhesive tape, and the gluing operation of the side of the surface of the product is completed; the product lifting assembly moves close to the automatic rolling adhesive tape assembly in the horizontal plane until the other side of the product is positioned at an adhesive applying station, and the adhesive applying device repeats the actions to complete adhesive applying operation on the other side of the surface of the product; and the lifting motor drives the product to be rubberized to rotate in the horizontal plane, the product lifting assembly moves close to or far away from the automatic rolling adhesive tape assembly in the horizontal plane at the same time until the side, which is not rubberized, of the product is positioned at the rubberizing station, and the rubberizing device repeats the actions until the rubberizing operation on the periphery of the surface of the product is completed. This automatic rubberizing production line realizes the automatic rubberizing around the product surface, and rubberizing mechanism's simple structure is reliable, and design benefit is convenient for realize, improves production quality and production efficiency greatly, reduction in production cost.
Preferably, a mounting plate is arranged between the rolling support and the support driving mechanism, the rolling support is arranged on the mounting plate in a vertically sliding mode, and a spring is arranged between the rolling support and the mounting plate. The reliability and the stability of the roller rolling adhesive tape are improved.
Preferably, the bracket driving mechanism is a screw nut driving mechanism.
Preferably, the traction adhesive tape assembly is fixedly connected with the shearing adhesive tape assembly, and the shearing adhesive tape assembly is driven by the first horizontal transfer device to slide along the conveying direction of the rubberizing conveying device; the automatic rolling adhesive tape assembly is driven by the second horizontal transfer device to slide along the conveying direction of the adhesive tape sticking conveying device; the product lifting assembly is driven by a third horizontal transfer device to move close to or far away from the automatic rolling adhesive tape assembly in the horizontal plane. The first horizontal transfer device, the second horizontal transfer device and the third horizontal transfer device are all existing horizontal transfer devices, and the transfer function is stable and reliable.
Preferably, the adhesive tape sticking device further comprises a traction wheel and a flattening adhesive tape assembly, the adhesive tape disc mounting assembly, the traction wheel, the flattening adhesive tape assembly and the traction adhesive tape assembly are sequentially arranged, the adhesive tape of the adhesive tape disc is wound on the traction wheel, the flattening adhesive tape assembly comprises a pressing block fixedly arranged, a guide groove is formed in the pressing block, and the adhesive tape of the adhesive tape disc penetrates through the guide groove. The arrangement of the traction wheel is convenient for changing the output direction of the adhesive tape from the adhesive tape disc, so that the output of the adhesive tape is more flexible and reliable; the arrangement of the flattening adhesive tape assembly effectively avoids fold adhesion in the adhesive tape output process, and the reliability and the stability of the automatic adhesive tape sticking production line are improved.
Preferably, the number of the rubberizing devices is two, and the two rubberizing devices are sequentially distributed along the conveying direction of the rubberizing conveying device. Rubberizing conveyor will treat rubberizing product and carry the rubberizing station of rubberizing device to first group and the rubberizing station of rubberizing device is organized to the second in proper order, and the both sides rubberizing of rubberizing product parallel in surface is treated to first group rubberizing device, and the rubberizing device is treated rubberizing product parallel in surface's other both sides rubberizing to second group, and two sets of rubberizing device cooperations are accomplished and are treated rubberizing product surface rubberizing all around, improve production efficiency greatly.
Furthermore, a plurality of transferring molds are sequentially arranged on the rubberizing conveying device, and positioning grooves for positioning products are formed in the transferring molds. The product to be rubberized is conveyed on the rubberizing conveying device through the transfer mold, so that the product to be rubberized is protected, the production quality of the automatic rubberizing production line is improved, and the transfer mold is simple and reliable in structure and low in cost.
Further, rubberizing conveyor includes first upper belt conveyor components and first lower belt conveyor components, rubberizing conveyor's both ends are provided with first lift transfer subassembly and second lift transfer subassembly respectively, first lift transfer subassembly is used for shifting the mould that moves that carries of first upper belt conveyor components output to first lower belt conveyor components's input, the second goes up and down to shift the subassembly and is used for shifting the mould that moves that carries of first lower belt conveyor components output to first upper belt conveyor components's input. Transfer robot shifts the rubberized product of treating of CCD transfer station to the mould that moves of first upper belt conveyor assembly input, unloading robot shifts the first upper belt conveyor assembly output again and moves the rubberized product that moves in the mould and shift to unloading conveying mechanism, first lift shift subassembly shifts the empty mould that moves of first upper belt conveyor assembly output again and shifts to the input of first lower belt conveyor assembly, the second lift shifts the subassembly and shifts the empty mould that moves of first lower belt conveyor assembly output again and shifts to the input of first upper belt conveyor assembly, the automatic reuse who moves the mould is realized moving to the above-mentioned action of repetition, rubberizing conveyor device's simple structure is reliable, and the operation of being convenient for improves production efficiency, and the cost is lower.
Further, the feeding conveying mechanism and the discharging conveying mechanism are identical in structure and respectively comprise a second upper-layer belt conveying assembly, a second lower-layer belt conveying assembly and a third lifting transfer assembly, and the third lifting transfer assembly is used for transferring a box containing products at the output end of the second upper-layer belt conveying assembly to the input end of the second lower-layer belt conveying assembly. The products are stacked in the box body, and the feeding conveying mechanism and the discharging conveying mechanism achieve automatic feeding and discharging of the products, so that production efficiency is improved.
Has the advantages that: the automatic rubberizing production line is based on CCD visual identification guidance, is matched with a robot through visual identification guidance, automatically rubberizes around in 360-degree rotation, achieves automatic rubberizing of the surface of the liquid crystal display back plate, improves production efficiency, and saves labor; according to the automatic rubberizing production line, the rubberizing mechanism is simple and reliable in structure, ingenious in design and convenient to realize, the production quality and the production efficiency are greatly improved, and the production cost is reduced; according to the automatic rubberizing production line, the two groups of rubberizing devices are sequentially distributed along the conveying direction of the rubberizing conveying devices, the rubberizing conveying devices sequentially convey products to be rubberized to the rubberizing stations of the first group of rubberizing devices and the rubberizing stations of the second group of rubberizing devices, the first group of rubberizing devices rubberize two sides of the surfaces of the products to be rubberized in a parallel mode, the second group of rubberizing devices rubberize the other two sides of the surfaces of the products to be rubberized in a parallel mode, and the two groups of rubberizing devices are matched to complete rubberizing on the periphery of the surfaces of the products to be rubberized, so that production efficiency is greatly improved.
Drawings
FIG. 1 is a schematic perspective view of an automatic rubberizing line according to the present invention;
FIG. 2 is a schematic top view of the automated taping line of the present invention;
FIG. 3 is a schematic perspective view of a gluing device of the automatic gluing production line according to the present invention;
FIG. 4 is an enlarged partial schematic view of A in FIG. 3;
FIG. 5 is an enlarged partial schematic view of B in FIG. 4;
FIG. 6 is a partial perspective view of a portion of the rubberizing conveyor of the automatic rubberizing line according to the present invention;
FIG. 7 is a schematic partial perspective view of another part of the rubberizing conveying device of the automatic rubberizing production line according to the present invention;
FIG. 8 is a schematic perspective view of a blanking conveying mechanism of the automatic rubberizing production line according to the present invention;
FIG. 3 shows two sets of tape applicators, wherein the housing of one set of tape applicators is not shown;
in the figure: 1. a feeding conveying mechanism 2, a feeding robot 3, a CCD transfer station,
4. a transfer robot, 5, a rubberizing mechanism, 51, a rubberizing conveying device, 511, a first upper-layer belt conveying component, 512, a first lower-layer belt conveying component, 513, a first lifting transfer component, 514, a second lifting transfer component, 515, a lifting positioning mechanism, 52, a rubberizing device, 521, a product lifting component, 5211, a lifting cylinder, 5212, a lifting motor, 5213, a third horizontal transfer device, 522, a tape disk mounting component, 5221, a tape disk, 523, a traction wheel, 524, a flattening tape component, 5241, a pressing block, 5242, a guide groove, 5251, a pneumatic clamping jaw, 526, a shearing tape component, 5261, a shear, 5262, a shearing cylinder, 5263, a first horizontal transfer device, 527, an automatic rolling tape component, 5271, a roller, 5272, a rolling support, 5273, a support driving mechanism, 5274, a mounting plate, 5275, a spring, 5276 and a second horizontal transfer device, 528. the automatic blanking device comprises a shell, 6, a blanking robot, 7, a blanking conveying mechanism, 71, a second upper layer belt conveying assembly, 72, a second lower layer belt conveying assembly, 73, a third lifting transfer assembly, 8, a transfer mold, 81, a positioning groove, 9, a box body, 10, a liquid crystal display screen, 11 and isolation paper.
Detailed Description
Example 1
As shown in fig. 1-8, an automatic rubberizing production line comprises a feeding conveying mechanism 1, a feeding robot 2, a CCD transfer station 3, a transfer robot 4, a rubberizing mechanism 5, a discharging robot 6 and a discharging conveying mechanism 7 which are sequentially arranged, wherein the rubberizing mechanism 5 comprises a rubberizing conveying device 51 and a rubberizing device 52, the feeding robot 2 is used for transferring a product to be rubberized in the feeding conveying mechanism 1 to the CCD transfer station 3, the transfer robot 4 is used for transferring the product to be rubberized of the CCD transfer station 3 to an input end of the rubberizing conveying device 51, as shown in fig. 6 and 7, a plurality of transfer molds 8 are sequentially arranged on the rubberizing conveying device 51, positioning grooves 81 for positioning the product are formed in the transfer molds 8, the rubberizing device 52 is used for surface rubberizing the product to be rubberized on the rubberizing conveying device 51, and the discharging robot 6 is used for transferring the rubberized product output end of the rubberizing conveying device 51 to the discharging conveying mechanism 7, carrying out the reaction; the four-axis robot produced by ABB is selected for the feeding robot 2, the transfer robot 4 and the blanking robot 6, and the Ginbs CCD visual identification guide system is selected for the CCD transfer station 3.
Specifically, as shown in fig. 3 to 5, the adhesive applying device 52 includes a product lifting assembly 521, and an adhesive tape disc mounting assembly 522, a traction adhesive tape assembly, a shearing adhesive tape assembly 526, and an automatic rolling adhesive tape assembly 527 which are sequentially arranged, in order to ensure safety, beauty and cleanliness, a housing 528 is covered outside the adhesive applying device 52, an adhesive tape disc 5221 is rotatably arranged on the adhesive tape disc 5221 assembly, the traction adhesive tape assembly includes a pneumatic clamping jaw 5251, the shearing adhesive tape assembly 526 includes a shear 5261 and a shearing cylinder 5262, the shearing cylinder 5262 is used for driving the shear 5261 to open and close, the automatic rolling adhesive tape assembly 527 includes a roller 5271 and a rolling bracket 5272, the roller 5271 is rotatably arranged on the rolling bracket 5272, the rolling bracket 5272 is driven by a bracket driving mechanism 5273 to slide up and down, the bracket driving mechanism 5273 selects a lead screw nut driving mechanism, and in order to ensure that the roller 5271 is stably and reliably pressed down, an installation plate 5274 is arranged between the rolling support 5272 and the support driving mechanism 5273, the rolling support 5272 is vertically and slidably arranged on the installation plate 5274, a spring 5275 is arranged between the rolling support 5272 and the installation plate 5274, and the adhesive tape of the adhesive tape disc 5221 sequentially penetrates through the pneumatic clamping jaws 5251, the scissors 5261 and the rollers 5271; the traction adhesive tape assembly, the shearing adhesive tape assembly 526 and the automatic rolling adhesive tape assembly 527 are all arranged in a sliding manner along the conveying direction of the rubberizing conveying device 51, specifically, the traction adhesive tape assembly and the shearing adhesive tape assembly 526 are fixedly connected, the shearing adhesive tape assembly 526 is driven by a first horizontal transfer device 5263 to be arranged in a sliding manner along the conveying direction of the rubberizing conveying device 51, and the automatic rolling adhesive tape assembly 527 is driven by a second horizontal transfer device 5276 to be arranged in a sliding manner along the conveying direction of the rubberizing conveying device 51; two sets of tape sticking devices 52 are provided in fig. 1 to 3, and only one set of tape sticking device 52 is provided in the present embodiment, and one set of tape sticking device 52 in fig. 1 to 3 is omitted;
as shown in fig. 3 and 4, the product lifting assembly 521 includes a lifting cylinder 5211 and a lifting motor 5212, the lifting cylinder 5211 is used for driving a product to be glued on the gluing conveying device 51 to move up and down, the lifting motor 5212 is used for driving the product to be glued to rotate in a horizontal plane, the product lifting assembly 521 moves close to or away from the automatic rolling adhesive tape assembly 527 in the horizontal plane, and specifically, the product lifting assembly 521 is driven by a third horizontal transfer device 5213 to move close to or away from the automatic rolling adhesive tape assembly 527 in the horizontal plane;
in order to effectively prevent the adhesive tape of the adhesive tape disc 5221 from being wrinkled and adhered in the output process, as shown in fig. 3-5, the adhesive tape sticking device 52 further comprises a traction wheel 523 and a flattening adhesive tape assembly 524, the adhesive tape disc mounting assembly 522, the traction wheel 523, the flattening adhesive tape assembly 524 and the traction adhesive tape assembly are sequentially arranged, the adhesive tape of the adhesive tape disc 5221 is wound on the traction wheel 523, the flattening adhesive tape assembly 524 comprises a pressing block 5241 which is fixedly arranged, a guide groove 5242 is formed in the pressing block 5241, and the adhesive tape of the adhesive tape disc 5221 penetrates through the guide groove 5242.
As shown in fig. 6 and 7, the rubberizing conveying device 51 includes a first upper belt conveying assembly 511 and a first lower belt conveying assembly 512, a first lifting transfer assembly 513 and a second lifting transfer assembly 514 are respectively disposed at two ends of the rubberizing conveying device 51, the first lifting transfer assembly 513 is used for transferring the transfer mold 8 at the output end of the first upper belt conveying assembly 511 to the input end of the first lower belt conveying assembly 512, and the second lifting transfer assembly 514 is used for transferring the transfer mold 8 at the output end of the first lower belt conveying assembly 512 to the input end of the first upper belt conveying assembly 511; each station of the first upper belt conveying assembly 511 is provided with a lifting positioning mechanism 515, the lifting positioning mechanism 515 comprises a lifting platform which is arranged to lift up and down, and the lifting platform is used for supporting the transfer mold 8 away from the first upper belt conveying assembly 511, so that the reliability and stability of the action at each station are improved.
As shown in fig. 1, 2 and 8, the feeding conveyor mechanism 1 and the discharging conveyor mechanism 7 have the same structure, and each includes a second upper layer belt conveyor assembly 71, a second lower layer belt conveyor assembly 72, and a third lifting transfer assembly 73, where the third lifting transfer assembly 73 is used to transfer the product-containing box 9 at the output end of the second upper layer belt conveyor assembly 71 to the input end of the second lower layer belt conveyor assembly 72.
The product of this embodiment is liquid crystal display 10, need paste double-sided tape in advance around liquid crystal display 10's backplate, when liquid crystal display 10 need paste dress, peels off double-sided tape's on the backplate barrier paper 11 again, pastes dress liquid crystal display 10 through double-sided tape.
The work flow of the automatic rubberizing production line is as follows:
1) the second upper-layer belt conveying assembly 71 of the feeding conveying mechanism 1 conveys the box bodies 9 containing the liquid crystal display screens 10 to be pasted to the feeding stations at the output end of the box bodies in sequence, and the second upper-layer belt conveying assembly 71 pauses at the moment;
2) the feeding robot 2 sucks the liquid crystal display screen 10 to be pasted from the box body 9 at the output end of the second upper-layer belt conveying assembly 71 of the feeding conveying mechanism 1 and transfers the liquid crystal display screen to the CCD transfer station 3; when the box body 9 at the output end of the second upper layer belt conveying component 71 of the feeding conveying mechanism 1 is emptied, the third lifting transfer component 73 of the feeding conveying mechanism 1 transfers the box body 9 to the input end of the second lower layer belt conveying component 72, so that automatic batch output of the empty box body 9 is realized;
3) the transfer robot 4 sucks and transfers the to-be-pasted glue liquid display screen 10 of the CCD transfer station 3 to the positioning groove 81 of the transfer jig at the input end of the first upper-layer belt conveying component 511, and the corresponding lifting positioning mechanism 515 descends and resets again, so that the transfer jig at the input end of the first upper-layer belt conveying component 511 is placed on the first upper-layer belt conveying component 511; wherein, the visual guidance identification of the CCD transfer station 3 ensures the position precision of the transfer robot 4 absorbing the glue solution display screen 10 to be pasted;
4) when the first upper belt conveying assembly 511 conveys the display screen 10 to be rubberized to the rubberizing station of the rubberizing device 52, the first upper belt conveying assembly 511 stops conveying the display screen 10 to be rubberized, the lifting cylinder 5211 is started to lift the display screen 10 to be rubberized away from the first upper belt conveying assembly 511, the pneumatic clamping jaws 5251 clamp the adhesive tape again and move to the rubberizing starting point of one side of the liquid crystal display screen 10 along the conveying direction of the first upper belt conveying assembly 511, the support driving mechanism 5273 drives the rolling support 5272 to drive the roller 5271 to press downwards, at the moment, the roller 5271 presses the end part of the adhesive tape to the rubberizing starting point of the side of the liquid crystal display screen 10 (the side of the adhesive tape close to the liquid crystal display screen 10 has no adhesive property of the isolation paper 11, and the side of the adhesive tape far away from the liquid crystal display screen 10 has the isolation paper 11), the pneumatic clamping jaws 5251 are loosened again, and simultaneously the pneumatic clamping jaws 5251 and the roller 5271 press the adhesive tape to the liquid crystal display screen 10 along the conveying direction When the roller 5271 moves to the rubberizing end point of the side of the liquid crystal display screen 10, the shearing cylinder 5262 drives the scissors 5261 to close and cut off the adhesive tape, and the rubberizing operation on one side of the back plate surface of the liquid crystal display screen 10 is completed; the product lifting assembly 521 moves close to the automatic rolling adhesive tape assembly 527 in the horizontal plane until the other side of the surface of the back plate of the liquid crystal display screen 10 is located at an adhesive applying station, and the adhesive applying device 52 repeats the actions to complete adhesive applying operation on the other side of the surface of the back plate of the liquid crystal display screen 10; the lifting motor 5212 drives the liquid crystal display screen 10 to rotate in the horizontal plane, meanwhile, the product lifting assembly 521 moves close to or far away from the automatic rolling adhesive tape assembly 527 in the horizontal plane until the side, which is not pasted with the adhesive, on the surface of the back plate of the liquid crystal display screen 10 is located at the adhesive pasting station, and the adhesive pasting device 52 repeats the actions until the adhesive pasting operation on the periphery of the surface of the back plate of the liquid crystal display screen 10 is completed;
5) the lifting cylinder 5211 is lowered and reset again, so that the transferring jig to which the glue solution display screen 10 is attached is placed on the first upper-layer belt conveying component 511, the first upper-layer belt conveying component 511 continuously conveys the glue solution display screen 10 to the blanking station at the output end of the first upper-layer belt conveying component 511, at the moment, the first upper-layer belt conveying component 511 is paused, and the corresponding lifting positioning mechanism 515 supports the transferring mold 8 at the blanking station at the output end of the first upper-layer belt conveying component 511 away from the first upper-layer belt conveying component 511;
6) the blanking robot 6 absorbs and transfers the glued liquid crystal display screen 10 at the output end of the first upper-layer belt conveying component 511 into the box body 9 at the input end of the second upper-layer belt conveying component 71 of the blanking conveying mechanism 7, when the box body 9 at the input end of the second upper-layer belt conveying component 71 is fully stacked with the glued liquid crystal display screen 10, the second upper-layer belt conveying component 71 sequentially conveys the box bodies 9 to the output end of the boxes, and the three lifting and transferring components of the blanking conveying mechanism 7 transfer the box body 9 at the output end of the second upper-layer belt conveying component 71 to the input end of the second lower-layer belt conveying component 72, so that the automatic batch output of the glued liquid crystal display screens 10 is realized;
7) the corresponding lifting positioning mechanism 515 is lowered and reset again, so that the transferring jig at the output end of the first upper-layer belt conveying component 511 is placed on the first upper-layer belt conveying component 511, the first lifting transferring component 513 transfers the transferring mold 8 empty at the output end of the first upper-layer belt conveying component 511 to the input end of the first lower-layer belt conveying component 512, the first lower-layer belt conveying component 512 sequentially conveys the empty transferring molds 8 to the output end thereof, the second lifting transferring component 514 transfers the transferring mold 8 empty at the output end of the first lower-layer belt conveying component 512 to the input end of the first upper-layer belt conveying component 511, and the actions are repeated to realize automatic recycling of the transferring mold 8.
Example 2
As shown in fig. 1 to 3, the present embodiment is different from embodiment 1 in that the number of the rubberizing devices 52 is two, and the two sets of rubberizing devices 52 are sequentially distributed along the conveying direction of the rubberizing conveying device 51.
In the work flow of this automatic rubberizing production line of this embodiment, rubberizing conveyor 51 will treat to rubberize liquid display 10 and carry the rubberizing station to first group rubberizing device 52 and the rubberizing station of second group rubberizing device 52 in proper order, first group rubberizing device 52 treats the both sides rubberizing of rubberizing liquid display 10 backplate surface parallel, second group rubberizing device 52 treats the rubberizing of the other both sides rubberizing of rubberizing liquid display 10 backplate surface parallel, need not hold up motor 5212 drive and treat that rubberizing liquid display 10 rotates in the horizontal plane, two groups rubberizing device 52 cooperate the completion and treat the rubberizing all around of rubberizing liquid display 10 backplate surface, improve production efficiency greatly.