CN112093122A - A pressfitting structure for gum pressurize equipment of electronic product - Google Patents

A pressfitting structure for gum pressurize equipment of electronic product Download PDF

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Publication number
CN112093122A
CN112093122A CN202011039228.3A CN202011039228A CN112093122A CN 112093122 A CN112093122 A CN 112093122A CN 202011039228 A CN202011039228 A CN 202011039228A CN 112093122 A CN112093122 A CN 112093122A
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CN
China
Prior art keywords
threaded rod
pressing
fixed
pressure maintaining
electronic products
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Withdrawn
Application number
CN202011039228.3A
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Chinese (zh)
Inventor
郑小龙
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Longyan Kangqing Technology Co ltd
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Longyan Kangqing Technology Co ltd
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Priority to CN202011039228.3A priority Critical patent/CN112093122A/en
Publication of CN112093122A publication Critical patent/CN112093122A/en
Withdrawn legal-status Critical Current

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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65BMACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B33/00Packaging articles by applying removable, e.g. strippable, coatings
    • B65B33/02Packaging small articles, e.g. spare parts for machines or engines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65CLABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00Details of labelling machines or apparatus
    • B65C9/26Devices for applying labels
    • B65C9/36Wipers; Pressers

Abstract

The invention discloses a pressing structure of gum pressure maintaining equipment for electronic products, which comprises a substrate, a pressing plate, a guide rod and an auxiliary fixing device, wherein the auxiliary fixing device is arranged at the right end of the top of the substrate; the transmission case is installed to the front end in supplementary fixing device, is provided with intermittent type wheelset in the transmission case, and inside when motor drive carries out intermittent type motion, general band pulley transmission can be so that to put the board and begin to carry out angle modulation, realizes the regulation of work piece pressfitting angle to but the briquetting of angle modulation carries out effectual fixing in the cooperation casting die.

Description

A pressfitting structure for gum pressurize equipment of electronic product
Technical Field
The invention relates to the field related to electronic product processing, in particular to a pressing structure of gum pressure maintaining equipment for an electronic product.
Background
Generally, many electronic products need to be pasted with a layer of protective film or label during production, for example, a layer of protective film is pasted on a screen or a rear cover of a mobile phone to protect the mobile phone from being scratched by other objects, and after the protective film is pasted on the product, the protective film needs to be continuously pressed for a period of time to enhance the pasting effect of the protective film, a dedicated adhesive-backed pressure maintaining device needs to be used, and a dedicated pressing mechanism needs to be installed on the adhesive-backed pressure maintaining device to drive a pressing plate at the bottom so as to stably press a workpiece at the bottom.
In the practical use process of the laminating structure of the gum pressure maintaining equipment of the electronic product, most of workpieces needing to be laminated in the working process are directly pushed to enter the bottom of the pressing plate, and are manually aligned and then fixed before being pressed down; different workpieces have different pressing surfaces, and the angle can be manually adjusted to work, so that labor is consumed, and the working efficiency is influenced.
Disclosure of Invention
Therefore, in order to solve the above-mentioned deficiencies, the present invention provides a pressing structure for an adhesive-backed pressure maintaining device of an electronic product.
The invention is realized in such a way that a pressing structure of gum pressure maintaining equipment for electronic products is constructed, the pressing structure comprises a base plate, a support is fixed at the left end of the top of the base plate, a connecting wire is arranged at the left lower end of the support, an air cylinder is fixed at the right upper end in the support, an output rod at the bottom of the air cylinder is fixed with a connecting block, the front end and the rear end of the bottom of the connecting block are fixed with a pressing plate through bolts, the front end and the rear end in the pressing plate are penetrated by a guide rod, the bottom of the guide rod is fixed with the base plate, an auxiliary fixing device is arranged at the right end of the top of the base plate and comprises a fixing frame, a placing plate, a first motor, a fixing seat, a transmission mechanism, a pressing piece, a transmission box and a second motor, the placing plate is arranged at the upper end of the, the middle part in the fixing seat is connected with the transmission mechanism, the top of the transmission mechanism is provided with a pressing piece, the middle part of the front end face of the fixing frame is provided with a transmission box, the lower end of the front end face of the transmission box is provided with a second motor, the first motor and the second motor are both electrically connected with a connecting wire, and the bottom of the fixing frame is fixed with the right end of the top of the substrate.
Preferably, drive mechanism includes first threaded rod, second threaded rod, slider and branch, first threaded rod right side meets with the second threaded rod, first threaded rod and second threaded rod external diameter surface middle part rotate with the slider and are connected, the slider top is fixed with the casting die, both ends are run through by branch around in the slider to the branch both sides run through the fixing base outside and fix with fixed frame inboard, first threaded rod right side and the second threaded rod outside run through the fixing base outside and are rotated with fixed frame inboard and be connected.
Preferably, the pressing piece comprises a support, a pressing block and a protection pad, the bottom of the support is fixed with the sliding block, the upper end of the inner side of the support is hinged with the pressing block, and the protection pad is bonded on the inner side of the pressing block.
Preferably, the transmission case includes the box, rotates the wheel, rotates piece, connecting axle, driving pulley, hold-in range, driven pulleys and drive shaft, the box back is fixed with fixed frame, the lower extreme is provided with and rotates the wheel in the box, it meets with second motor back output shaft to rotate the in-wheel middle part, it meets with rotating the piece to rotate the wheel back, the middle part is provided with the connecting axle in the rotation piece, the connecting axle back is rotated with the box and is connected, connecting axle external diameter surface front end meets with driving pulley, driving pulley external diameter surface carries out synchronous rotation through hold-in range and driven pulleys, the middle part is provided with the drive shaft in the driven pulleys, the drive shaft back runs through the box and is rotated with the place board and is connected.
Preferably, the middle parts of the front end and the rear end of the fixing frame are convex, and the distance between the top of the inner side of the fixing frame and the top of the placing plate is 5 cm.
Preferably, the first threaded rod and the second threaded rod have the same outer diameter and the outer diameter surfaces of the first threaded rod and the second threaded rod have opposite thread directions.
Preferably, the inner wall of the through hole in the middle of the sliding blocks is provided with internal threads, and the middle of the two groups of sliding blocks are respectively in threaded connection with the first threaded rod and the second threaded rod.
Preferably, the support is L-shaped, and the front end and the rear end of the bottom of the support are triangular.
Preferably, the protection pad is arc-shaped, and a silica gel layer is bonded on the left side of the protection pad.
Preferably, a poking column is fixed at the upper right end of the rotating wheel, and the back of the poking column is movably embedded into the lower end of the rotating wheel.
Preferably, the bracket is made of stainless steel.
Preferably, the rotating member is made of alloy steel.
The invention has the following advantages: the invention provides a laminating structure of back adhesive pressure maintaining equipment for electronic products by improving, compared with the same type of equipment, the laminating structure comprises the following improvements:
the method has the advantages that: according to the pressing structure of the gum pressure maintaining equipment for the electronic product, the auxiliary fixing device is arranged at the right end of the top of the substrate, the transmission mechanism is arranged in the auxiliary fixing device, the transmission mechanism can realize the relative motion of the top pressing piece, the workpiece can be conveniently and quickly fixed, manual operation is not needed, the fixing effect is good, and the alignment accuracy is high.
The method has the advantages that: according to the pressing structure of the gum pressure maintaining equipment for the electronic product, the transmission mechanism in the auxiliary fixing device is driven by the independent motor to drive the two groups of threaded rods with opposite threads to move, so that the top sliding block drives the pressing piece to stably transmit, and the pressing structure is good in clamping effect and stability.
The method has the advantages that: according to the pressing structure of the gum pressure maintaining equipment for the electronic product, the transmission case is mounted at the front end in the auxiliary fixing device, the intermittent wheel set is arranged in the transmission case, the transmission case performs intermittent motion inside the transmission case when driven by the motor, the placing plate can start angle adjustment through transmission of the universal belt wheel, the adjustment of the pressing angle of the workpiece is realized, and the pressing block with the adjustable angle in the pressing piece is matched for effective fixing.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the auxiliary fixture of the present invention;
FIG. 3 is a schematic view of the drive mechanism of the present invention;
FIG. 4 is a schematic view of a compression element according to the present invention;
fig. 5 is a schematic view of the structure of the transmission case of the invention.
Wherein: a base plate-1, a support-2, a connecting wire-3, a cylinder-4, a connecting block-5, a pressure plate-6, a guide rod-7, an auxiliary fixing device-8, a fixing frame-81, a placing plate-82, a first motor-83, a fixing seat-84, a transmission mechanism-85, a pressing piece-86, a transmission box-87 and a second motor-88, the device comprises a first threaded rod-851, a second threaded rod-852, a sliding block-853, a supporting rod-854, a support-861, a pressing block-862, a protective pad-863, a box body-871, a rotating wheel-872, a rotating piece-873, a connecting shaft-874, a driving belt wheel-875, a synchronous belt-876, a driven belt wheel-877, a driving shaft-878 and a toggle column-8721.
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 5, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1, the present invention provides, by improvement, a press-fit structure of a back adhesive pressure maintaining device for an electronic product, including a substrate 1, a support 2 is fixed at a left end of a top of the substrate 1, a connecting wire 3 is arranged at a left lower end of the support 2, a cylinder 4 is fixed at a right upper end of the support 2, a bottom output rod of the cylinder 4 is fixed with a connecting block 5, a front end and a rear end of a bottom of the connecting block 5 are fixed with a pressing plate 6 through bolts, the front end and the rear end of the interior of the pressing plate 6 are penetrated by a guide rod 7, the bottom of the guide rod 7 is fixed with the substrate 1, and an.
Referring to fig. 2, the present invention provides a pressing structure of a back adhesive pressure maintaining device for an electronic product by improving, an auxiliary fixing device 8 includes a fixing frame 81, a placing plate 82, a first motor 83, a fixing base 84, a transmission mechanism 85, a pressing member 86, a transmission case 87 and a second motor 88, the placing plate 82 is installed at the upper end of the middle part in the fixing frame 81, the first motor 83 is installed at the middle part of the right side of the fixing frame 81, the fixing base 84 is installed at the left and right ends in the fixing frame 81, the middle part in the fixing base 84 is connected with the transmission mechanism 85, the pressing member 86 is installed at the top of the transmission mechanism 85, the transmission case 87 is installed at the middle part of the front end surface of the fixing frame 81, the second motor 88 is installed at the lower end of the front end surface of the transmission case 87, the first motor 83 and the second motor 88 are both electrically connected with a connecting, and the distance between the top of the inner side of the fixing frame 81 and the top of the placing plate 82 is 5cm, so that the angle adjustment of the placing plate 82 is facilitated.
Referring to fig. 3, the present invention provides a press-fit structure for a back adhesive pressure maintaining device of an electronic product by improving a press-fit structure of the back adhesive pressure maintaining device, wherein a transmission mechanism 85 includes a first threaded rod 851, a second threaded rod 852, a sliding block 853 and a supporting rod 854, the right side of the first threaded rod 851 is connected with the second threaded rod 852, the middle parts of the outer diameter surfaces of the first threaded rod 851 and the second threaded rod 852 are rotatably connected with the sliding block 853, the top of the sliding block 853 is fixed with a pressing member 86, the front end and the rear end of the sliding block 853 are penetrated by the supporting rod 854, the two sides of the supporting rod 854 are penetrated through the outer side of a fixing seat 84 and fixed with the inner side of a fixing frame 81, the right side of the first threaded rod 851 and the outer side of the second threaded rod 852 are rotatably connected with the inner side of the fixing frame 81, the outer diameter dimensions of the first threaded rod 851 and the, and the middle parts in the two groups of slide blocks 853 are respectively in threaded connection with the first threaded rod 851 and the second threaded rod 852, so that stable sliding is realized, and the smoothness is good.
Referring to fig. 4, the present invention provides a pressing structure of a back adhesive pressure maintaining device for an electronic product by improving a pressing member 86, which includes a support 861, a pressing block 862 and a protection pad 863, the bottom of the support 861 is fixed to a slider 853, the upper end of the inner side of the support 861 is hinged to the pressing block 862, the protection pad 863 is bonded to the inner side of the pressing block 862, the protection pad 863 is arc-shaped, a silica gel layer is bonded to the left side of the protection pad 863, the protection effect is good, the friction force is large, the support 861 is L-shaped, the front end and the rear end of the bottom of the support 861 are triangular, the support 861 is made of stainless steel, and rust caused by long-term use is prevented.
Referring to fig. 5, the present invention provides a pressing structure of a back adhesive pressure maintaining device for an electronic product by improving, a transmission case 87 includes a case 871, a rotating wheel 872, a rotating member 873, a connecting shaft 874, a driving pulley 875, a synchronous belt 876, a driven pulley 877 and a driving shaft 878, the back of the case 871 is fixed to a fixed frame 81, the rotating wheel 872 is disposed at the inner lower end of the case 871, the inner middle portion of the rotating wheel 872 is connected to an output shaft at the back of a second motor 88, the back of the rotating wheel 872 is connected to the rotating member 873, the middle portion of the rotating member 873 is provided with the connecting shaft 874, the back of the connecting shaft 874 is rotatably connected to the case 871, the front end of the outer diameter surface of the connecting shaft 874 is connected to the driving pulley 875, the outer diameter surface of the driving pulley 875 is synchronously rotated with the driven pulley 877 by the synchronous belt 876, the middle portion of the inner portion of, rotate the interior upper right end of wheel 872 and be fixed with and stir post 8721 to stir post 8721 back activity embedding to rotate interior lower extreme of piece 873, effective stable stir rotating piece 873, rotate piece 873 and adopt alloy steel material, intensity is high, and stability is strong.
Example two
The invention provides a pressing structure of back adhesive pressure maintaining equipment for electronic products by improving, wherein the support rods 854 are smooth, and the two groups of support rods 854 are parallel to each other, so that the sliding block 853 can slide stably and smoothly; a sealing cover is arranged on the back of the box body 871, and the support rod 854 is fixed with the sealing cover through a bolt, so that a user can conveniently check and maintain the inside of the box body 871; 12 groups of slots are formed in the rotating piece 873, the width dimension of the slots is larger than the outer diameter dimension of the shifting column 8721, and stable shifting of the rotating piece 873 by the shifting column 8721 is facilitated.
The invention provides a pressing structure of gum pressure maintaining equipment for electronic products through improvement, and the working principle is as follows;
firstly, when the structure needs to be used, the structure is firstly installed in back adhesive pressure maintaining equipment needing to be used, and then a connecting wire is connected to an electric control device on the equipment, so that electric energy required by the operation of the equipment can be provided and can be controlled;
secondly, the workpiece to be pressed can be moved to the top of the placing plate 82, then a user starts the first motor 83 to work, an output shaft on the left side of the first motor 83 drives the first threaded rod 851 and the second threaded rod 852 inside to rotate, then the sliding blocks 853 in the middle of the outer diameter surfaces of the two groups of threaded rods can move, and the sliding blocks 853 can move relatively, so that the workpiece can slide stably under the guiding effect of the supporting rods 854;
thirdly, the pressing piece 86 at the top can be driven, and finally, the pressing block 862 arranged in the pressing piece 86 can press the side face of the workpiece through the protective pad 863 to finish fixing;
fourthly, if the angle of the press fit needs to be adjusted, a user starts the second motor 88 to work, an output shaft at the back of the second motor 88 drives the internal rotating wheel 872 to rotate, then the rotating wheel 872 drives the rotating piece 873 through the toggle column 8721, the rotating piece 873 can start to rotate at the same angle intermittently, the connecting shaft 874 in the middle of the inside of the rotating piece can enable the driving pulley 875 to rotate, then the driving pulley 875 enables the driven pulley 877 to rotate through the synchronous belt 876, then the driving shaft 878 in the middle of the inside of the driven pulley 877 enables the angle of the placing plate 82 to be adjusted, the angle is adjusted, the workpiece is clamped through the driving pressing piece 86, the pressing block 862 can adjust the angle on the support 861 under the action of force, and the fixing work can be conveniently and effectively realized;
fifthly, finally, the user starts the cylinder 4 to work, the pushing rod at the bottom of the cylinder 4 applies force to the connecting block 5 at the bottom, and then the pressing plate 6 at the bottom can be pressed downwards under the action of the guide rod 7, so that the pressing of the workpiece is realized.
The invention provides a pressing structure of gum pressure maintaining equipment for electronic products through improvement, an auxiliary fixing device 8 is arranged at the right end of the top of a substrate 1, a transmission mechanism 85 is arranged in the auxiliary fixing device 8, the transmission mechanism 85 can realize the relative motion of a top pressing piece 86, a workpiece can be conveniently and rapidly fixed, manual operation is not needed, the fixing effect is good, and the alignment accuracy is high; the transmission mechanism 85 in the auxiliary fixing device 8 is driven by an independent motor to drive the next two groups of threaded rods with opposite threads to move, so that the top sliding block 853 drives the pressing piece 86 to stably transmit, and the clamping effect and the stability are good; the transmission case 87 is installed at the front end in the auxiliary fixing device 8, the intermittent wheel set is arranged in the transmission case 87, intermittent motion is carried out inside the transmission case when the motor is driven, the placing plate 82 can start angle adjustment through universal belt wheel transmission, the adjustment of the pressing angle of the workpiece is achieved, and the pressing block 862 which can adjust the angle in the pressing piece 86 is matched for effective fixing.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described, and the standard parts used in the present invention are all available on the market, the special-shaped parts can be customized according to the description and the accompanying drawings, the specific connection mode of each part adopts the conventional means of bolt and rivet, welding and the like mature in the prior art, the machinery, parts and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, and the details are not described herein.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. A pressing structure of gum pressure maintaining equipment for electronic products comprises a substrate (1), wherein a support (2) is fixed at the left end of the top of the substrate (1), a connecting wire (3) is arranged at the left lower end of the support (2), an air cylinder (4) is fixed at the upper right end in the support (2), an output rod at the bottom of the air cylinder (4) is fixed with a connecting block (5), the front end and the rear end of the bottom of the connecting block (5) are fixed with a pressing plate (6) through bolts, the front end and the rear end in the pressing plate (6) are penetrated through by a guide rod (7), and the bottom of the guide rod (7) is fixed with the substrate (1);
the method is characterized in that: the novel glass substrate fixing device is characterized by further comprising an auxiliary fixing device (8), wherein the auxiliary fixing device (8) is arranged at the right end of the top of the substrate (1), the auxiliary fixing device (8) comprises a fixing frame (81), a placing plate (82), a first motor (83), a fixing base (84), a transmission mechanism (85), a pressing piece (86), a transmission box (87) and a second motor (88), the placing plate (82) is installed at the upper end of the middle part in the fixing frame (81), the first motor (83) is arranged in the middle of the right side of the fixing frame (81), the fixing base (84) is installed at the left end and the right end in the fixing frame (81), the middle part in the fixing base (84) is connected with the transmission mechanism (85), the pressing piece (86) is arranged at the top of the transmission mechanism (85), the transmission box (87) is installed in the middle of the front end face of, first motor (83) and second motor (88) all are connected with connecting wire (3) electricity, fixed frame (81) bottom is fixed with base plate (1) top right-hand member.
2. The pressing structure of the adhesive-backed pressure maintaining device for electronic products according to claim 1, wherein: the transmission mechanism (85) comprises a first threaded rod (851), a second threaded rod (852), a sliding block (853) and a supporting rod (854), the right side of the first threaded rod (851) is connected with the second threaded rod (852), the middle parts of the outer diameter surfaces of the first threaded rod (851) and the second threaded rod (852) are rotatably connected with the sliding block (853), the top of the sliding block (853) is fixed with a pressing piece (86), the front end and the rear end in the sliding block (853) are penetrated through by the supporting rod (854), the two sides of the supporting rod (854) penetrate through the outer side of the fixing seat (84) and are fixed with the inner side of the fixing frame (81), and the right side of the first threaded rod (851) and the outer side of the second threaded rod (852) penetrate through the outer side of the fixing seat (84) and.
3. The pressing structure of the adhesive-backed pressure maintaining device for electronic products according to claim 1, wherein: the pressing piece (86) comprises a support (861), a pressing block (862) and a protection pad (863), the bottom of the support (861) is fixed with the sliding block (853), the upper end of the inner side of the support (861) is hinged with the pressing block (862), and the protection pad (863) is bonded to the inner side of the pressing block (862).
4. The pressing structure of the adhesive-backed pressure maintaining device for electronic products according to claim 1, wherein: the transmission case (87) comprises a case body (871), a rotating wheel (872), a rotating piece (873), a connecting shaft (874), a driving pulley (875), a synchronous belt (876), a driven pulley (877) and a driving shaft (878), wherein the back surface of the case body (871) is fixed with the fixed frame (81), the rotating wheel (872) is arranged at the inner lower end of the case body (871), the inner middle part of the rotating wheel (872) is connected with an output shaft at the back surface of the second motor (88), the back surface of the rotating wheel (872) is connected with the rotating piece (873), the inner middle part of the rotating piece (873) is provided with the connecting shaft (874), the back surface of the connecting shaft (874) is rotationally connected with the case body (871), the front end of the outer diameter surface of the connecting shaft (874) is connected with the driving pulley (875), the outer diameter surface of the driving pulley (875) is synchronously rotated with the driven, the middle part is provided with drive shaft (878) in driven pulley (877), drive shaft (878) back run through box (871) and put board (82) and carry out the rotation and be connected.
5. The pressing structure of the adhesive-backed pressure maintaining device for electronic products according to claim 1, wherein: the middle parts of the front end and the rear end of the fixed frame (81) are convex, and the distance between the top of the inner side of the fixed frame (81) and the top of the placing plate (82) is 5 cm.
6. The pressing structure of the adhesive-backed pressure maintaining device for electronic products according to claim 2, wherein: the first threaded rod (851) and the second threaded rod (852) have the same outer diameter dimension, and the outer diameter surfaces of the first threaded rod and the second threaded rod are opposite in thread direction.
7. The pressing structure of the adhesive-backed pressure maintaining device for electronic products according to claim 2, wherein: the inner wall of the through hole in the middle of the slide block (853) is provided with internal threads, and the inner middle parts of the two sets of slide blocks (853) are respectively in threaded connection with the first threaded rod (851) and the second threaded rod (852).
8. The pressing structure of the adhesive-backed pressure maintaining device for electronic products according to claim 3, wherein: the support (861) is L-shaped, and the front end and the rear end of the bottom of the support (861) are triangular.
9. The pressing structure of the adhesive-backed pressure maintaining device for electronic products according to claim 3, wherein: the protection pad (863) is arc-shaped, and a silica gel layer is bonded on the left side of the protection pad (863).
10. The pressing structure of the adhesive-backed pressure maintaining device for electronic products according to claim 4, wherein: a toggle column (8721) is fixed at the upper right end of the rotating wheel (872), and the back surface of the toggle column (8721) is movably embedded into the lower end of the rotating piece (873).
CN202011039228.3A 2020-09-28 2020-09-28 A pressfitting structure for gum pressurize equipment of electronic product Withdrawn CN112093122A (en)

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CN202011039228.3A CN112093122A (en) 2020-09-28 2020-09-28 A pressfitting structure for gum pressurize equipment of electronic product

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Cited By (3)

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Publication number Priority date Publication date Assignee Title
CN112846708A (en) * 2020-12-24 2021-05-28 杨西顶 Press-fitting device with good protection effect for assembling computer shell
CN113757240A (en) * 2021-11-08 2021-12-07 龙旗电子(惠州)有限公司 Terminal pressure maintaining jig and pressure maintaining method
CN114789818A (en) * 2021-01-23 2022-07-26 柴宁 Use neat device after packing printing paper cuts

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Application publication date: 20201218