CN115959329A

CN115959329A - Film sticking mechanism

Info

Publication number: CN115959329A
Application number: CN202310142409.6A
Authority: CN
Inventors: 齐帅; 刘春防; 高彬彬; 卫乐春; 刘云涛; 卜善昌; 彭立强; 孙希祥; 杨魁华; 张志强
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-04-14

Abstract

The invention discloses a film sticking mechanism which is used for sticking a protective film on the surface of a product with an opening at one end and a local curved surface and comprises a machine base, a conveying device, a first film sticking device and a second film sticking device, wherein the machine base is provided with a first film sticking station and a second film sticking station which are arranged at intervals, the conveying device can convey a circulation tool with the product placed on the machine base from the first film sticking station to the second film sticking station, the first film sticking device is arranged on the first film sticking station and is used for sticking a main body section of the protective film on the end surface of the product and the side surface adjacent to the end surface, the second film sticking device is arranged on the second film sticking station and is used for sticking the part of the protective film, which protrudes out of the main body section, on the peripheral side surface of the product.

Description

Film pasting mechanism

Technical Field

The invention relates to the technical field of mechanical equipment, in particular to a film sticking mechanism.

Background

In order to prevent the products from causing surface scratches and other defects in the process transfer process, the precise pasting process of the protective film on the surface of the products also comes from the beginning, the research and development difficulty of the standard film pasting equipment is higher for the products with irregular curved surfaces, the universality is poor, the pasting difficulty is very high due to the self characteristics (material, thickness, hardness, static electricity and the like) of the protective film, and manual pasting operation is mostly carried out manually in the industry.

Disclosure of Invention

The invention mainly aims to provide a film sticking mechanism which can realize automatic sticking of a protective film of a curved surface product, so that the defects of manual sticking at present are overcome, the production efficiency is improved, good consistency is ensured, and manpower is saved.

In order to achieve the above object, the present invention provides a film attaching mechanism for attaching a protective film to a surface of a product having a local curved surface, the film attaching mechanism including:

the machine base is provided with a first film pasting station and a second film pasting station which are arranged at intervals;

the conveying device can convey the circulation tool with the product placed to the second film pasting station from the first film pasting station;

the first film sticking device is arranged at the first film sticking station and is used for sticking the main body section of the protective film to the end surface of the product and the side surface adjacent to the end surface; and the number of the first and second groups,

and the second film sticking device is arranged at the second film sticking station and is used for sticking the part of the protective film protruding out of the main body section on the peripheral side surface of the product.

Optionally, the first film sticking device comprises:

the driving mechanism is arranged on the base and is provided with a driving end;

the first mounting seat is mounted to the driving end and can move under the driving of the driving end;

the adsorption part is arranged at the lower end of the first mounting seat and used for adsorbing the protective film, and an avoidance groove is formed in the middle of the adsorption part; and the number of the first and second groups,

tectorial membrane structure locates first mount pad, tectorial membrane structure includes first tectorial membrane portion at horizontal plane movable mounting and follows from top to bottom to movable mounting's second tectorial membrane portion, second tectorial membrane portion activity is worn to locate dodge the groove to can be attached the terminal surface at the product with the middle part of the main part section of protection film, first tectorial membrane portion corresponds dodge the lateral part in groove for with attached the side surface at the product of the rest of the main part section of protection film.

Optionally, the product has one end face and two first opposite side faces on both sides of the end face;

first tectorial membrane portion is equipped with two, corresponds respectively dodge the both sides that the groove is relative, first tectorial membrane portion with the cooperation of second tectorial membrane portion for the middle part of the main part section of protection film is attached at the terminal surface of product, and the attached two first sides in remaining part.

Optionally, the adsorption part includes two adsorption plates that the interval set up, two adsorption plate fixed mounting extremely the lower extreme of first mount pad, inject jointly between two adsorption plates avoid the groove.

Optionally, the lower surface of the second film coating portion is adapted to the end surface of the product, and the second film coating portion is elastically mounted to the first mounting seat.

Optionally, at least one mounting hole is arranged through the end surface of the first mounting seat;

the second film-coating portion includes:

at least one connecting rod movably penetrates through the mounting hole along the vertical direction;

the lower surface of the first pressing block is matched with the end face of a product, and the first pressing block is fixed to the lower end of the connecting rod; and (c) a second step of,

the spring is sleeved on the outer surface of the connecting rod, and two ends of the spring respectively abut against the first mounting seat and the first pressing block.

Optionally, the two adsorption plates are fixed to the first installation seat through a guide rod, so that an accommodating space is defined between the two adsorption plates and the first installation seat;

each of the first film-coating portions includes:

the at least one sliding block is positioned in the accommodating space and is arranged on the corresponding adsorption plate, and the sliding block can have a movable stroke close to or far away from the avoidance groove under the action of external force; and (c) a second step of,

and the first roller is positioned between the second film coating part and the corresponding adsorption plate and is positioned below the adsorption plate, and the rotating shaft of the first roller can be rotatably installed on the sliding block.

Optionally, each first film covering part comprises two sliders arranged at intervals, wherein a first elongated hole is formed in the upper end surface of one slider,

two ends of the rotating shaft of the first roller are connected to the two sliding blocks through two pin rods, wherein one pin rod can move in the first long hole.

Optionally, a feeding machine is further arranged on the machine base, the feeding machine is used for sequentially peeling off the plurality of protective films on the winding tape, and the first film sticking device is used for picking up the protective films peeled off by the feeding machine; and/or the presence of a gas in the gas,

the film sticking mechanism further comprises a visual detection device arranged on the base and used for detecting the position of the protective film.

Optionally, the second film sticking device comprises:

the second mounting seat is arranged at the second film pasting station and is fixed to the base;

the first film pasting structure is correspondingly arranged in the middle of the second mounting seat and used for enabling the corresponding part of the protective film to be arranged on the side surface of the product adjacent to the end surface; and the number of the first and second groups,

and the two second film sticking structures are respectively arranged on two sides of the first film sticking structure and are used for enabling the corresponding parts of the protective film to be arranged on the peripheral side surface of the product.

Optionally, the first film structure comprises:

the supporting frame can move up and down and comprises at least two supporting arms; and the number of the first and second groups,

annular rubber band, the cover is located the outside of two support arms, annular rubber band has the working section, the working section is located just be in between two support arms the below of carriage, the working section be used for with product surface contact to it corresponds the laminating to drive the protection film.

Optionally, the first film structure further comprises:

one end of the supporting seat is arranged between the two supporting arms and is fixedly connected with the two supporting arms; and the number of the first and second groups,

the second pressing block is located between the working section and the supporting seat, the second pressing block is elastically connected with the supporting seat, and the second pressing block is in contact with the working section.

Optionally, each of the support arms comprises a body and an adjustment block mounted to an end of the body, a distance between two of the adjustment blocks in the two support arms being adjustable;

the working section is arranged between the two adjusting blocks.

Optionally, the two second film structures are located on two lateral sides of the first film structure and are longitudinally staggered from the first film structure.

Optionally, each second film structure comprises:

the base can be movably arranged on the side surface of the second mounting seat along the longitudinal direction; and the number of the first and second groups,

the movable film pasting part is arranged on the base and is provided with a movable stroke close to or far away from the first film pasting structure, and the movable film pasting part can move along the side surface of the product.

Optionally, the movable film part comprises:

the two connecting arms are oppositely arranged and are bent, the middle parts of the two connecting arms are hinged with each other, and the end parts of the two connecting arms back to the first film pasting structure are connected through elastic parts; and the number of the first and second groups,

the two second rollers extend along the vertical direction, are respectively arranged at the other ends of the two connecting arms and are used for contacting with the side surfaces of the product;

each second pad pasting structure still includes drive division, drive division is used for driving two linking arm joint activities.

According to the technical scheme, products are carried by the circulation tool to circulate between different stations, corresponding protective film attaching actions are completed by sequentially staying at the first film attaching station and the second film attaching station, so that automatic film attaching is realized, manpower is replaced, the flat end face and the peripheral side face with the curved surface are attached step by step in the film attaching step, stable attaching of each part of the protective film is guaranteed, automatic attaching of the mechanism improves working efficiency and productivity in the production process, good consistency is achieved, the products are always placed on the circulation tool in the whole circulation process, the protective film attaching is performed by corresponding actions of the film attaching mechanisms, the surface scratching and product dirtiness of the products caused by frequent picking and placing of the products can be avoided, the customer supply quantity is met, meanwhile, manpower saving is synchronously achieved, and meanwhile, the automatic mechanism is convenient to be matched with other processing steps in whole-line production.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic view of a protective film provided by the present invention;

FIG. 2 is a schematic perspective view of an embodiment of a film sticking mechanism provided in the present invention;

FIG. 3 is a perspective view of the film structure of FIG. 2;

FIG. 4 is a perspective view of the second film structure of FIG. 2;

FIG. 5 is a schematic perspective view of the first film structure shown in FIG. 4;

FIG. 6 is a schematic view of the second film structure of FIG. 4;

fig. 7 is a perspective view of the first pressure maintaining device in fig. 2.

The reference numbers illustrate:

the implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.

It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

Along with the popularization of modern intelligent household industry electronic products and the rise of the Yuanzhou industry, curved surface modeling products are more and more popular with consumers, the requirement on the quality of high-brightness surfaces of curved surfaces of the corresponding products is more and more improved, the requirement on the surface protection level is higher in the processing, assembling and transferring processes, especially, the requirement on the shell injection molding protection level of the foremost process product is also higher, in order to prevent the products from causing the undesirable generation of surface scratches and the like in the process transferring process, the precise pasting process of protective films on the surfaces of the products is also carried out, for the products with irregular curved surfaces at present, the research and development difficulty of standardized pasting equipment is higher, the universality is poor, the pasting difficulty is extremely high due to the characteristics (material, thickness, hardness, static electricity and the like) of the protective films, and manual pasting operation is mostly carried out manually in the industry.

The manual pasting mode has the following disadvantages: firstly, the pasting efficiency is low, the batch production mode cannot be met, and the precise SOP standard is not provided, so that the batch pasting consistency is poor; secondly, the risk of scratching and badness in dirt on the surface of the product is easily caused by frequent manual taking and placing of the product; and thirdly, manual operation can only be performed with a single function, and other functional modules cannot be integrated for production, for example, corresponding operation needs to be performed manually on the surface of a product in a laser etching process.

In view of this, the present invention provides a film sticking mechanism, and fig. 2 to 7 are embodiments of the film sticking mechanism provided by the present invention.

It should be noted that, the specific structures of the product and the protective film are not limited in the present invention, and products corresponding to different curved surface structures may correspond to protective films of different structures.

Referring to fig. 2 and 4, the film sticking mechanism 100 includes a base 1, a conveying device 2, a first film sticking device 3 and a second film sticking device 4, the base 1 has a first film sticking station 1a and a second film sticking station 1b which are arranged at intervals, the conveying device 2 can transfer a flow tool in which the product 200 is placed from the first film sticking station 1a to the second film sticking station 1b, the first film sticking device 3 is arranged at the first film sticking station 1a, the first film sticking device 3 is used for attaching a main body section 301 of a protective film to an end face of the product 200 and a side surface adjacent to the end face, the second film sticking device 4 is arranged at the second film sticking station 1b, and the second film sticking device 4 is used for attaching a part of the protective film protruding from the main body section 301 to a peripheral side surface of the product 200.

According to the technical scheme, the product 200 is carried by the circulation tool to circulate between different stations, corresponding protective film attaching actions are finished by sequentially staying at the first film attaching station 1a and the second film attaching station 1b, so that automatic film attaching is realized, manual work is replaced, the flat end face and the peripheral side face with the curved surface are attached in steps in the film attaching step, stable attaching of all parts of the protective film is guaranteed, automatic attaching of the mechanism improves working efficiency and capacity in the production process, good consistency is achieved, the product 200 is always located on the circulation tool in the whole circulation process, the film attaching mechanisms 100 conduct attaching of the protective film in corresponding actions, surface scratching of the product 200 and dirt of the product 200 caused by frequent picking and placing of the product 200 can be avoided, the labor saving is synchronously achieved while the supply quantity of a client is met, and meanwhile, the automatic mechanism is convenient to be matched with other processing steps in whole-line production.

The invention is not limited to the specific form of the conveying device 2, and the conveying device 2 may be in a conveying belt conveying form, an electric push rod pushing form, or a clamping and transferring form by a manipulator, and is not limited herein.

The product 200 of the present invention is partially arranged in a curved surface, and in one embodiment, the product 200 is a shell structure with an opening at one end, and has an end surface to be attached and an annular peripheral side surface, the annular peripheral side surface has two first side surfaces arranged oppositely and two second side surfaces arranged oppositely, a curved surface transition section is formed between every two adjacent first side surfaces and second side surfaces, and the end surface and the peripheral side surface are in curved surface transition.

Correspondingly, fig. 1 is a schematic diagram of the protective film provided in this embodiment, the protective film includes a main body segment 301, two first attaching segments 302 located at two sides of the main body segment 301 along the length direction, and two first attaching feet 303 located at two sides of the main body segment 301 along the width direction and corresponding to the center, where the two first attaching segments 302 are combined together to cover the peripheral side surface of the product 200, the two first attaching segments 302 of the protective film in this embodiment have different lengths, and the two first attaching segments 302 in other embodiments corresponding to the product may have the same size.

Use the protection film shown in fig. 1 as an example, in order to first pad pasting station 1a accomplishes the preliminary laminating of protection film and product 200, please refer to fig. 3, first pad pasting device 3 includes actuating mechanism 31, first mount pad 32, adsorption part 33 and tectorial membrane structure, actuating mechanism 31 locates frame 1, actuating mechanism 31 has the drive end, as main driver part, first mount pad 32 install to the drive end can the activity is down moved in the drive of drive end, as installation load-bearing member, adsorption part 33 locates the lower extreme of first mount pad 32 for adsorb the protection film, the middle part of adsorption part 33 forms and dodges groove 332, tectorial membrane structure locates first mount pad 32, tectorial membrane structure includes two first tectorial membrane portions at horizontal plane movable mounting and along the second tectorial membrane portion of up-down movable mounting, the activity of second tectorial membrane portion is worn to locate dodge groove 332 to can attach the middle part of the protection film at the terminal surface of product 200 with the protection film 301 of protection film, two first tectorial membrane portions correspond to dodge the relative both sides of groove 301 and be used for dodging other side body parts 200 of the product. When product 200 is in during first pad pasting station 1a, product 200 should correspond dodge groove 332 and set up, the protecting film this moment the absorption portion 33 adsorbs fixedly, is in directly over product 200, the pad pasting in-process, absorption portion 33 all the time with first mount pad 32 keeps relatively fixed, orders about the drive section activity downwards, because second tectorial membrane portion is owing to have the ascending activity stroke from top to bottom, consequently can adapt to product 200 stretches into dodge the height in the groove 332, thereby can keep compressing tightly main part section 301 and corresponding dodging the paragraph of groove 332 and compressing tightly the terminal surface at product 200 all the time, be about to main part section 301's center and the laminating of product 200 terminal surface, two this moment first tectorial membrane portion can be with the paragraph laminating of locating both sides at two first sides of product 200, in this process, absorption portion 33 acts on all the time to carry out the restriction in position to the protecting film, but the characteristics of absorption make the protecting film can take place relative displacement with absorption portion 33 in the pad pasting in-process again to be convenient for two first tectorial membranes of first tectorial membrane portion.

In the above embodiment, the main body section 301 of the protective film is correspondingly attached to one end face and two side surfaces adjacent to and opposite to the end face, in another embodiment, the product 200 may be in a cover-shaped structure, or a shell structure with two adjacent open sides, or a special-shaped structure, it can be understood that, in other embodiments, the main body section 301 of the protective film is only attached to one end face and one side surface adjacent to the end face, so that only one first film covering part may be provided corresponding to the side part of the avoiding groove 332, in this case, the second film covering part may correspond to a position of the main body section 301 close to the end part when the protective film is attached, and the first film covering part corresponds to the remaining part when the protective film is attached.

It should be understood that the present invention is not limited to the specific form of the driving mechanism 31, and may be a mechanical arm, a four-axis mechanism, or other devices, which can drive the first mounting seat 32 to move in multiple directions. The adsorption part 33, the first film coating part and the second film coating part are installed by taking the first mounting seat as a mounting base so as to form an integral part, the integral part can be combined into a whole in advance, and the driving end is connected so as to be convenient for maintenance and replacement after the integral part is detached.

Further, referring to fig. 3, the absorption portion 33 includes two absorption plates 331 disposed at an interval, the two absorption plates 331 are fixedly mounted to the lower end of the first mounting seat 32, and the avoidance groove 332 is defined between the two absorption plates 331. The planar absorption can enable the protective film to be absorbed flatly, so as to facilitate the arrangement of the avoiding groove 332, in another embodiment, the absorption portion 33 may also be an integral plate, the avoiding groove 332 is machined in the middle of the absorption portion, in yet another embodiment, the absorption portion 33 may also be arranged as a suction nozzle, and the avoiding groove 332 is obtained through the arrangement reservation of the suction nozzles, which is not described in detail herein.

It can be understood that, when the corresponding product 200 is a conventional shell structure, it is a relatively regular symmetrical structure, and the two absorption plates 331 absorb the sections of the main body section 301 with similar sizes, and are matched with the two second film coating portions; when the product 200 is a buckle cover-shaped structure, or a shell structure with local openings at two adjacent sides, or other special-shaped structures, the sizes of the main body sections 301 adsorbed by the two adsorption plates 331 are different, at this time, one of the main body sections is mainly adsorbed, and the other main body section has the effect of preventing the edge of the main body section 301 from tilting.

The specific way of the second film covering portion moving up and down is not limited in the present invention, and a related driving component may be provided to actively drive the second film covering portion, and at this time, a corresponding sensor or a corresponding inductive switch needs to be provided to sense the position of the product 200, so as to facilitate timely control of the driving component. That is, the second film covering part is used as a passive part, and due to the characteristic of elastic connection, the second film covering part can automatically move when being propped against the product 200, and then can reset by virtue of elasticity, and is arranged in a profiling manner so as to be matched with the end face of the product 200 and the curved surface of the edge of the product 200.

It can be understood that an elastic member may be directly designed to connect the first mounting seat 32 and the profiling block to realize the function of the second coating portion, but in consideration of the installation space and the stability of the reciprocating operation, referring to fig. 3, the end surface of the first mounting seat 32 is penetrated with at least one installation hole, the second coating portion includes at least one connecting rod 351, a first pressing block 352 and a spring, the connecting rod 351 is movably inserted into the installation hole in the vertical direction, not only can play a role of guiding, but also can protrude upwards from the first mounting seat 32 so that a sufficient space is provided between the lower end of the connecting rod 351 and the end surface of the absorption plate 331, the lower surface of the first pressing block 352 is adapted to the end surface of the product 200, the first pressing block 352 is fixed to the lower end of the connecting rod 351, the spring is sleeved on the outer surface of the connecting rod 351, and both ends of the spring respectively abut against the first mounting seat 32 and the first pressing block 352. So set up the whole space that occupies of structure less, and can realize stable straight reciprocating motion. At first, the briquetting is located in dodge the groove 332, in order to facilitate the position state that operating personnel confirmed the processing, can design first briquetting 352 at initial with the plane parallel and level that adsorption part 33 is located, when first briquetting 352 is on the basis of the terminal surface of product 200, along with the whereabouts of first mount pad 32, first briquetting 352 is pushed up, follows upwards shift out in dodge the groove 332, at this moment the upper end of connecting rod 351 can be outstanding the mounting hole, and the spring is compressed, provides certain top-resisting force, realizes that the local of protection film is pasted tightly, when product 200 takes away, receives the resilience force of spring, first briquetting 352 gets back to initial position.

It is understood that the connecting rod 351 may be provided in two by providing foam on the surface of the first pressing block 352 to automatically match the shape of the product 200 when pressed, thereby providing a stable supporting force to prevent the first pressing block 352 from deflecting due to the force of the hand spring.

Further, the present invention is not limited to the specific form of the first film-coating portion, and two matching blocks capable of moving in the horizontal direction may be provided to press the main body section 301 of the protective film, in this embodiment, the two adsorption plates 331 are both fixed to the first mounting seat 32 through a guide rod to define an accommodating space with the first mounting seat 32, each first film-coating portion includes at least one sliding block 341 and a first roller 342, the sliding block 341 is located in the accommodating space and is disposed on the corresponding adsorption plate 331, the sliding block 341 can have a moving stroke close to or far from the avoiding groove 332 under the action of an external force, the first roller 342 is located between the second film-coating portion and the corresponding adsorption plate 331 and below the adsorption plate 331, and a rotating shaft of the first roller 342 can be rotatably mounted to the sliding block 341. Initially, slider 341 is close to dodge groove 332 and set up absorption plate 331 adsorbs the protection film in the time, first cylinder 342 has contacted with the protection film one side of product 200 dorsad, along with the whereabouts of first mount pad 32, first cylinder 342 can with product 200 surface basis, receives the influence of product 200 self width this moment, slider 341 can be under the exogenic action towards keeping away from dodge the direction activity of groove 332, at this in-process, first cylinder 342 still moves down, relies on its structure specific can automatic rotation to accomplish the roll pad pasting all the time with the surface contact of product 200. The degree of adhesion of the protective film to the product 200 can be ensured, and the two first film coating portions act simultaneously, so that the two sides of the main body section 301 are synchronously adhered, and it can be understood that each first roller 342 can be coated with rubber for improvement, and meanwhile, the effect of elastic rolling adhesion can be realized.

It should be noted that the sliding block 341 is driven passively, and may be driven to reset by a spring, or may be driven to reset by another driving component, which is not limited herein.

In consideration of the curved surface amplitude of the product 200 and the machining error of the parts, each of the first film coating portions includes two sliders 341 arranged at intervals, a first elongated hole 3411 is formed in an upper end surface of one of the sliders 341, two ends of a rotating shaft of the first roller 342 are connected to the two sliders 341 through two pins, and one of the pins is movable in the first elongated hole 3411. That is, in the connection process, one of the pins is used as a main positioning member and is fixed in position, and the other pin is used as a compensation member and can interact in the elongated hole along with the contact between the first roller 342 and the product 200, so as to compensate for the deviation of the curved surface. In this embodiment, each pin rod is a step positioning pin.

In order to ensure the guidance of the sliding block 341, in this embodiment, one of the opposite side surfaces of the sliding block 341 and the corresponding adsorption plate 331 is provided with a sliding rail, and the other is provided with a sliding groove, and the sliding groove is in sliding fit with the sliding rail. Thereby providing a good guiding effect.

In addition, in the sticking mechanism, the film feeding of the protective film can be performed by means of an external device, in this embodiment, a feeding function is integrated at the first film sticking station 1a, so as to realize integration of three functions of automatic feeding, material taking and film sticking, specifically, referring to fig. 2, a feeder 6 is further arranged on the base 1, and the feeder 6 is used for sequentially stripping off a plurality of protective films on the tape; the first film sticking device 3 is used for picking up the protective film peeled by the feeding machine 6. The feeding machine 6 can be directly obtained by purchasing, can automatically peel off a single protection film, and has a corresponding position through reasonable and practical structure of the first film sticking device 3, so that the film sticking can be carried out after the driving action is carried out. It can be understood that the feeding machine 6 should be located at a side portion of the first film laminating station 1a, and needs to avoid the circulation of the circulation tool, and in this embodiment, the driving mechanism 31 may control the movement of the adsorption part 33 to realize driving.

Furthermore, the film sticking mechanism 100 further includes a visual detection device 7 disposed on the base 1 for detecting the position of the protective film. In this embodiment, the vision inspection device 7 is provided with two, one corresponds to the feeder 6, and is used for taking pictures of the protective film that is peeled off in place, so as to facilitate the control of taking the materials, and the other corresponds to the first film pasting station 1a, and is used for performing vision correction on the protective film sucked by the adsorption part 33, and compensating in place according to the correction data.

It should be noted that a waste discharge and collection area may be set corresponding to the feeding machine 6, the visual inspection device 7 may obtain a protection photograph to detect the state of the protection film, and the protection film is placed in the waste discharge and collection area when the protection film is detected to be damaged.

Taking the protection film shown in fig. 1 as an example, in order to complete further bonding of the protection film to the product 200 at the second film-bonding station 1b, referring to fig. 4, the second film-bonding device 4 includes a second mounting seat 41, a first film-bonding structure 42 and two second film-bonding structures 43, the second mounting seat 41 is disposed at the second film-bonding station 1b and fixed to the base 1, the first film-bonding structure 42 is correspondingly located in the middle of the second mounting seat 41, and is configured to bond two first bonding legs 303 of the protection film, which are oppositely disposed, to two second sides of the product 200, and the two second film-bonding structures 43 are respectively disposed on two sides of the first film-bonding structure 42 and are configured to sequentially bond two first bonding sections 302 of the protection film to each adjacent first side and second side of the product 200. The protective film is irregular in shape, so that the two strip-shaped first attaching legs 303 are attached to the first film attaching structure 42 first, and then the two first attaching sections 302 are attached to the second film attaching structure 43, so that interference in the film attaching process is avoided. Namely, the film pasting is completed in two steps at the second film pasting station 1 b.

In other embodiments, since the structures of the corresponding protective films may be different, it is necessary to satisfy: the first film sticking structure 42 sticks the protective film to the flat surface of the product, and the two second film sticking structures 43 stick the protective film to the peripheral side of the product, at this time, the sticking action in this step makes the protective film part cross the flat side and the curved surface of the product.

The present invention does not limit the specific form of the first film structure 42, and the first film structure 42 may be attached by way of foam pressing and roller attaching, in this embodiment, referring to fig. 5, the first film structure 42 includes a supporting frame 421 and an annular rubber band 422, the supporting frame 421 is capable of moving in an up-and-down direction, the supporting frame 421 includes at least two supporting arms, the annular rubber band 422 is sleeved outside the two supporting arms, the annular rubber band 422 has a working section 4221, the working section 4221 is disposed between the two supporting arms and below the supporting frame 421, and the working section 4221 is used for contacting with the surface of the product 200 to drive the two first attaching feet 303 to be correspondingly attached. When the product 200 is transferred to the first film pasting station 1a, the two first sticking feet 303 are in a suspended state and aligned with the annular rubber band 422 in the up-down direction, then the supporting frame 421 is driven by the driving part to fall synchronously by the annular rubber band 422, at the moment, because the lower end of the supporting frame 421 leads the interval of the two supporting arms to form an opening, the annular rubber band 422 is convenient for whole tensioning and adaptive adjustment reset because the center of the working section 4221 can be supported and deformed by the end surface of the product 200 under the action of external force, and the two edges of the working section 4221 are deformed accordingly and tightly attached to the first sticking feet 303 to complete the film pasting action, and the annular rubber band 422 can be subjected to adaptive profiling and rebound reset due to the characteristics of the annular rubber band 422 in the film pasting process, so that the film pasting device has a good pasting effect and can adapt to the curved surface transition parts of the end surface and the two second side surfaces of the product 200.

It should be understood that in the present embodiment, the working segment 4221 is deformed into n-shape by external force when the working segment 4221 is operated, and the working segment 4221 may also be deformed into n-shape, etc. when deformed by external force, corresponding to different product shapes and different structures of the protective film, which is not limited by the present invention.

Further, the first film pasting structure 42 further includes a supporting seat 423 and a second pressing block 424, one end of the supporting seat 423 is located between the two supporting arms and is fixedly connected with the two supporting arms, the second pressing block 424 is located between the working section 4221 and the supporting seat 423, the second pressing block 424 is elastically connected with the supporting seat 423, and the second pressing block 424 is in contact with the working section 4221. The second pressing block 424 can be automatically lifted by the pushing force of the product 200, and the second pressing block 424 can always press the center of the working section 4221 in the process, so that the positioning effect is achieved. Considering the arrangement of the annular rubber band 422, the part of the supporting seat 423 protruding out of the annular rubber band 422 may be connected to a driving component to drive the supporting seat 423 and the supporting frame 421 to make a linear motion in the vertical direction as a whole.

Considering that the working segment 4221 is elongated by force, but its edge is actually angled with respect to the surface of the product 200, each of the support arms includes a body and an adjustment block 4211 mounted to an end of the body, the distance between two of the adjustment blocks 4211 of the two support arms is adjustable, and the working segment 4221 is located between the two adjustment blocks 4211. The length of the working section 4221 can be adjusted by detaching and installing the adjusting block 4211, so as to adjust the tension of the annular rubber band 422 on the product 200.

Considering that the lengths of the two first attaching segments 302 in the protective film are different and are asymmetrically arranged, in this embodiment, the two second attaching film structures 43 are located on two sides of the first attaching film structure 42 along the transverse direction and are longitudinally offset from the first attaching film structure 42. By adjusting the positions of the two second film pasting structures 43 so that the two second film pasting structures are centered with reference to the length of the corresponding first pasting segment 302, rather than the product 200 itself, the effect of adaptive film pasting is achieved.

Specifically, each second film pasting structure 43 includes a base 431 and a movable film pasting portion, the base 431 can be movably installed to the side surface of the second installation seat 41 along the longitudinal direction, so that the eccentricity with the product 200 and the dislocation arrangement with the first film pasting structure 42 can be realized by adjusting the position of the base 431, the movable film pasting portion is arranged on the base 431, the movable film pasting portion has a movable stroke close to or far away from the first film pasting structure 42, and the movable film pasting portion can move along the side surface of the product 200. The movable position of the base 431 is initially adjusted, and then the movable film pasting part is driven to be away from the product 200, so that the product 200 can be conveniently input along with the conveying device 2, or the movable film pasting part is driven to be in surface contact with the product 200, and the pasting is realized in a rolling film pasting mode.

In one embodiment, referring to fig. 6, the movable film pasting portion includes two connecting arms 4321 and two second rollers 4322, the two connecting arms 4321 are disposed oppositely and are both disposed in a bent manner, middle portions of the two connecting arms 4321 are hinged to each other, end portions of the two connecting arms 4321, which are back to the first film pasting structure 42, are connected by an elastic member, the two second rollers 4322 extend in an up-and-down direction and are respectively disposed at the other ends of the two connecting arms 4321 for contacting with side surfaces of the product 200, and each of the second film pasting structures 43 further includes a driving portion 4323, and the driving portion 4323 is configured to drive the two connecting arms 4321 to move together. The driving portion 4323 may be a linear cylinder, a screw rod structure, or the like, the driving portion 4323 drives the two connecting arms 4321 to move, so that the two second rollers 4322 can contact with the surface of the product 200, and as the driving portion 4323 continues to drive, initially, the positions of the contact points of the two second rollers 4322 and the surface of the product 200 are different due to the staggered structural arrangement, and due to the design of the hinged connection of the two connecting arms 4321 and the effect of the elastic member, the two second rollers 4322 can naturally perform the roller film pasting operations with different amplitudes along the surface of the product 200.

In order to realize the adjustable orientation of the base 431, in this embodiment, a second elongated hole 4311 is formed in the base 431, and the second elongated hole 4311 extends in the longitudinal direction and passes through the second elongated hole 4311 by a screw to fix the base 431 on the second mounting seat 41. During each installation, the orientation adjustment can be realized by matching the screw with the second elongated hole 4311. The structure is simple, the cost is low, and in other embodiments, the driving part can be designed, and the detailed description is omitted.

After the protective film is attached, taking the protective film shown in fig. 1 as an example, in order to ensure the connection effect between the protective film and the product 200, referring to fig. 2 to 7, the base 1 further has a first pressure maintaining station 1d and a second pressure maintaining station 1e located behind the second film attaching station 1 b; the film sticking mechanism 100 further comprises a first pressure maintaining device 8 and a second pressure maintaining device 9, wherein the first pressure maintaining device 8 is located at the first pressure maintaining station 1d and used for compressing the parts of the protective film corresponding to the end face and the two first side faces of the product 200, and the second pressure maintaining device 9 is located at the second pressure maintaining station 1e and used for compressing the parts of the protective film corresponding to the two second side faces of the product 200. Thereby carry out reasonable substep pressurize according to the structure of product 200, guarantee that the laminating of protection film and product 200 is stable, avoid the local warpage that the former process pad pasting does not in place caused.

In other embodiments, when the structures of the product and the protective film are changed, the arrangement orientations and the number of the corresponding pressure holding stations and pressure holding devices may be different.

Specifically, first pressure maintaining device 8 includes mount pad 81, level pressure piece and two first pressure survey briquetting, mount pad 81 is located first pressure maintaining station 1d, and can follow from top to bottom to movable mounting extremely frame 1, top briquetting 82 is located mount pad 81, the lower terminal surface of top briquetting 82 be used for with product 200's terminal surface looks adaptation, two first side briquetting 83 are located mount pad 81, and divide and locate top briquetting 82's both sides, two first side briquetting 83 have the activity stroke that is close to each other or keeps away from each other for compress tightly the part of protection film on two first sides of product 200 jointly. After the product 200 flows to the first pressure maintaining station 1d, the mounting seat 81 moves downward, the lower end face of the fixed pressing block is firstly contacted with the end face of the product 200, then the two first side pressing blocks 83 are driven to move relatively, clamping of two sides of the product 200 is achieved, and a first pressure maintaining step is completed after the product 200 is kept for a period of time.

It can be understood that, preferably, the top pressing block 82 and the two first side pressing blocks 83 are both made of foam, which can ensure a good pressing effect, and the air cylinder and the plate can cooperate to drive the related connection activities, without limitation.

The lower end face of the top pressing block 82 is in a copying design, so that a large contact surface can be better met, and the top protective film can be more comprehensively subjected to pressure maintaining.

Further, the second pressure holding device 9 includes two second side pressing blocks 91 provided at the second pressure holding station 1e, and the two second side pressing blocks 91 have moving strokes close to or away from each other, and are used for pressing portions of the protection film on the two second side surfaces of the product 200 together. Similarly, preferably, the two second side pressing blocks 91 are all made of foam, so that a good pressing effect can be ensured, and related connection activities can be driven through the matching of the air cylinder and the plate, and are not limited here.

In order to improve the production efficiency, two products 200 arranged at intervals can be placed on the circulation supply device, and at this moment, the first film sticking device 3, the second film sticking device 4, the first pressure maintaining device 8 and the second pressure maintaining device 9 are all provided with two products for correspondingly placing the circulation tool of the two products 200. Thereby resulting in two finished film products 200 after each pass.

It can be understood that the film pasting station can be arranged in a disassembled mode, and the design of the film pasting process is mainly carried out according to the structure of the product 200 and the specific structure of the protective film.

Based on the structure of the product and the protective film in this embodiment and the film attaching mechanism 100 provided by the present invention, taking the processes of the product 200 driven by the conveyor as an example, the specific steps are as follows:

the first step, at the first film pasting station 1a, the main body section 301 can be pasted on the end face and two first side faces of the product 200 at the same time, and the rest of the protective film can be naturally suspended due to the material of the protective film;

secondly, in the second film pasting station 1b, the first pasting feet 303 are pasted on the two second side surfaces;

thirdly, sequentially attaching two first attaching sections 302 at the second film attaching station 1b, wherein each first attaching section 302 can be attached to one group of adjacent first side surface and second side surface at the same time;

fourthly, maintaining the pressure of the protective films attached to the end face and the two second side faces of the product 200 at the first pressure maintaining station 1 d;

and fifthly, maintaining the pressure of the protective films attached to the two first side surfaces of the product 200 at the second pressure maintaining station 1 e.

According to the technical scheme, the protective film attaching device can replace manual work to attach the protective film through automatic equipment, and is suitable for attaching the protective film of various products with similar curved surface structures. The curved surface attaching and pressure maintaining actions are integrated, the integration degree is high, visual detection is integrated, high-precision film attaching is facilitated, flexible rollers are adopted for attaching, the problem that the attaching wrinkles or bubbles of the protective films are caused due to positioning consistency or film taking consistency of products is solved, the attaching of symmetrical and asymmetrical protective films can be achieved by the second film attaching device 4 through mechanism position adjustment, the roller film wrapping mode is adopted, the service life of the rollers is prolonged, and the attaching degree of the protective films on the products is improved through elastic rolling; the automatic pasting improves the working efficiency and the productivity in the production process, improves the operation efficiency and the operation quality stability, has the advantages of convenience in replacement and simplicity in maintenance and use, meets the supply quantity of clients, and synchronously realizes manpower saving; the capability of production automation is improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. The utility model provides a pad pasting mechanism for with the attached surface on the product that local curved surface set up of protection film, its characterized in that, pad pasting mechanism includes:

the first film sticking device is arranged at the first film sticking station and is used for sticking the main body section of the protective film on the end surface of the product and the side surface adjacent to the end surface; and (c) a second step of,

2. The film attachment mechanism of claim 1, wherein the first film attachment device comprises:

the adsorption part is arranged at the lower end of the first mounting seat and used for adsorbing the protective film, and an avoidance groove is formed in the middle of the adsorption part; and (c) a second step of,

3. The film attachment mechanism of claim 2, wherein the product has an end face and two first opposing side faces on opposite sides of the end face;

4. The film sticking mechanism according to claim 2 or 3, wherein the adsorption part comprises two adsorption plates arranged at intervals, the two adsorption plates are fixedly mounted to the lower end of the first mounting seat, and the avoidance groove is defined between the two adsorption plates.

5. The film sticking mechanism as claimed in claim 2, wherein the lower surface of the second film covering part is adapted to fit the end face of the product, and the second film covering part is elastically mounted to the first mounting seat.

6. The film attaching mechanism according to claim 5, wherein at least one mounting hole is formed through an end surface of the first mounting seat;

the second film-coating portion includes:

7. The film sticking mechanism as claimed in claim 4, wherein the two adsorption plates are fixed on the first installation seat through guide rods so as to define a containing space with the first installation seat;

each of the first film-coating portions includes:

the at least one sliding block is positioned in the accommodating space and is arranged on the corresponding adsorption plate, and the sliding block can have a movable stroke close to or far away from the avoidance groove under the action of external force; and the number of the first and second groups,

8. The film sticking mechanism as claimed in claim 7, wherein each of the first film covering parts comprises two sliders arranged at intervals, wherein a first elongated hole is formed on an upper end surface of one of the sliders,

9. The film sticking mechanism according to claim 1 or 2, wherein a feeding machine is further arranged on the machine base, the feeding machine is used for sequentially peeling off the plurality of protective films on the tape, and the first film sticking device is used for picking up the protective films peeled off by the feeding machine; and/or the presence of a gas in the gas,

10. A film application mechanism as recited in claim 1, wherein the second film application device comprises:

the first film pasting structure is correspondingly positioned in the middle of the second mounting seat and is used for enabling the corresponding part of the protective film to be positioned on the side surface of the product adjacent to the end surface; and the number of the first and second groups,

and the two second film sticking structures are respectively arranged on two sides of the first film sticking structure and used for enabling the corresponding parts of the protective film to be arranged on the peripheral side face of the product.

11. A film attachment mechanism as recited in claim 10, wherein the first film attachment structure comprises:

the supporting frame can move up and down and comprises at least two supporting arms; and (c) a second step of,

12. The film attachment mechanism of claim 11, wherein the first film attachment structure further comprises:

13. The film attachment mechanism of claim 11, wherein each of said support arms includes a body and an adjustment block mounted to an end of said body, a distance between two of said adjustment blocks in said two support arms being adjustable;

the working section is between the two adjusting blocks.

14. The film attachment mechanism of claim 10, wherein the two second film attachment structures are located on the first film attachment structure on both lateral sides and are longitudinally offset from the first film attachment structure.

15. A film attachment mechanism according to claim 10 or 14, wherein each second film attachment structure comprises:

16. The film attachment mechanism of claim 15, wherein the movable film portion comprises: