CN114394276A

CN114394276A - Film pressing machine and pressing method thereof

Info

Publication number: CN114394276A
Application number: CN202111538948.9A
Authority: CN
Inventors: 戴杰; 王兵; 王建强; 李相�; 杨飞; 潘林园
Original assignee: Jiangsu New Team Intelligent Equipment Co ltd
Current assignee: Jiangsu New Team Intelligent Equipment Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-04-26

Abstract

The invention discloses a film laminator and a film laminating method thereof, wherein the film laminator adopts a film unwinding, conveying and winding mechanism to convey a film and attaches a workpiece and a softened film to convey, so that the film is not required to be cut into a preset shape in advance and then laminated, the working procedures are reduced, the film transfer process is not required, the problem of adsorbing a plurality of films at one time is avoided, and the efficiency of the film laminator and the film laminating quality are improved; adopt atmospheric pressure to make the softening region of film and the inseparable laminating of work piece simultaneously for the design of pressure head is more simple, easily realizes, is favorable to guaranteeing the validity of laminating, in addition can avoid when the branch mould, and softened film pastes with last mould head and leads to being gone up the problem that the mould head had the influence quality. After the film is coated, the film is uniformly cut, the consistency of products can be guaranteed, meanwhile, the film waste can be automatically rolled, and the automation of the whole process is realized.

Description

Film pressing machine and pressing method thereof

Technical Field

The invention relates to the field of automatic film laminating equipment, in particular to a film pressing machine and a pressing method thereof.

Background

At present, the surfaces of many products need to be protected by film sticking, and therefore, corresponding film laminating machines are developed to realize automatic film laminating.

The existing film laminating machine usually adopts a film supply mechanism to supply a film matched with the size of a product, then takes off a piece of film on the film supply mechanism through a film feeding robot and places the film above a workpiece of the film laminating mechanism, then heats the film through a heating device, and then closely adheres the heated film and the workpiece together through matching of a lower die and an upper die, but still has certain problems:

1. the film needs to be cut into single sheets with suitable sizes in advance, the size of each film needs to be accurately controlled, the film sticking process is increased, the material needs to be fed and repeatedly taken, the working cycle is not favorably improved, and the efficiency is low. When more important materials are taken, the thin film is thin, so that a plurality of films are easily adsorbed, material waste is caused, subsequent film covering failure is easily caused, and the film covering quality is influenced.

2. The upper die and the lower die are matched for film covering, the shape of the upper die is consistent with that of a workpiece, and for some workpieces with different types, the shape of the upper die is difficult to machine, the cost is high, and the requirement on positioning of the workpiece is high.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a laminator and a compression molding method thereof.

The purpose of the invention is realized by the following technical scheme:

the film pressing machine comprises a film unwinding mechanism, a film conveying mechanism, a film winding mechanism and a film winding mechanism

The heating mechanism is positioned above and/or below the film conveying mechanism and is used for heating and softening a local area of the film on the film conveying mechanism to obtain a softened area;

the feeding mechanism is positioned at the downstream of the heating mechanism and is used for moving the workpiece from the outer side of the film conveying mechanism to the position below the softening area;

the film coating mechanism is used for jacking a workpiece positioned below the softening region on the feeding mechanism to be close to or in contact with the softening region, and enabling the softening region to be tightly attached to the workpiece through air pressure to form an intermediate body;

and the cutting mechanism is positioned at the downstream of the film covering mechanism and is used for cutting and separating the intermediate body from the film on the film conveying mechanism.

Preferably, the film conveying mechanism comprises a driving motor and two chain transmission mechanisms driven by the driving motor, a film holder is arranged on the inner side of each chain transmission mechanism, the film holder is provided with a film limiting groove, and notches of the limiting grooves of the film holders on the two chains are oppositely arranged.

Preferably, feed mechanism includes the carriage, be provided with on the carriage can be at gliding slider between first height and second height, be provided with the feed seat on the slider, the integrated light source that has in the feed seat, the top surface of feed seat is formed with the confession the light trap that the light of light source jetted out, the carriage sets up on the revolving stage and by the revolving stage drive removes between primary importance and second place, and in primary importance department, the feed seat is located film conveying mechanism's the outside, and in second place department, the feed seat is located soften regional below.

Preferably, the light source is electrically connected with a plug below the sliding part, the plug is connected with the feeding seat through a guide rod penetrating through the sliding part, a first spring is arranged between the plug and the sliding part, the feeding seat is located at a first position, a socket is arranged below the plug connected with the feeding seat, the socket is connected with a lifting mechanism driving the lifting mechanism to move between a third height and a fourth height, the socket is electrically connected with the plug at the third height, and the socket is separated from the plug at the fourth height.

Preferably, the laminating mechanism comprises a jacking mechanism for driving the workpiece to jack and the softening region to approach or contact, and a pressing mechanism for combining the softening region and the workpiece by matching with the jacking mechanism, the pressing mechanism comprises a pressing block and a pressing driving mechanism for driving the pressing block to lift, and the pressing block is provided with an air groove with a downward notch and an air hole communicated with the air groove and used for being connected with an air source.

Preferably, the cutting mechanism comprises an upper cutter and a lower cutter which are arranged oppositely, the upper cutter is connected with the cutting driving mechanism, the lower cutter is provided with a cutting hole, the cutting edge of the lower cutter is the upper edge of the cutting hole, the upper cutter is a groove body with a notch facing the cutting hole, the side profile of the upper cutter is matched with the cutting hole, and the cutting edge of the upper cutter is the outer edge of the bottom surface of the upper cutter.

Preferably, the cutting edge of the upper cutter is a curve or an arc and/or a group of pushing upright posts is arranged in the groove body.

Preferably, the lower cutter is arranged on a carrier plate, a blanking hole corresponding to the cutting hole is formed in the carrier plate, and a blanking slope is arranged below the blanking hole.

Preferably, a baffle plate is arranged below the blanking hole, the baffle plate can move between an opening position and a closing position, and the lower end of the blanking hole is blocked by the baffle plate at the closing position; in the open position, the flapper opens the lower end of the feed aperture.

The compression molding method of any one of the film pressing machines at least comprises the following steps:

s1, after the area to be heated of the film is conveyed to the heating mechanism, the film conveying is stopped;

s2, starting a heating mechanism to heat the region to be heated to be softened to obtain a softened region;

s3, continuously conveying the film to the softening area downstream, conveying the film to the film covering mechanism, and stopping conveying the film;

s4, conveying a workpiece to the lower part of the softening area of the film by the feeding mechanism;

s5, starting the film covering mechanism, and attaching the softened region of the film and the workpiece together through air pressure to form an intermediate;

s6, after the film is continuously conveyed to the intermediate body to move to the cutting mechanism, the film conveying is stopped;

and S7, starting the cutting mechanism to cut to separate the intermediate from the film.

The technical scheme of the invention has the advantages that:

according to the scheme, the film unreeling, conveying and reeling mechanism is adopted to convey the film, and the workpiece is attached to the softened film for conveying, so that the film does not need to be cut into a preset shape in advance and then coated, the working procedures are reduced, the film transferring process is not needed, the problem of adsorbing a plurality of films at one time does not exist, the efficiency of the film laminating machine is improved, and the film laminating quality is ensured; adopt atmospheric pressure to make the softening region of film and the inseparable laminating of work piece simultaneously for the design of pressure head is more simple, easily realizes, is favorable to guaranteeing the validity of laminating, in addition can avoid when the branch mould, and softened film pastes with last mould head and leads to being gone up the problem that the mould head had the influence quality. After the film is coated, the film is uniformly cut, the consistency of products can be guaranteed, meanwhile, the film waste can be automatically rolled, and the automation of the whole process is realized.

The film conveying mechanism adopts the chain transmission mechanism, and the film clamp holder is arranged on the chain, so that the film can be effectively limited, supported and conveyed, and the effective conveying of the film is ensured.

The light source is integrated in the feeding seat of the feeding mechanism, so that the workpiece can be effectively illuminated, and the workpiece can be detected by matching with an external image acquisition device.

The power supply is provided for the light source through the plug and the socket, the problem that direct external wiring power supply interferes with the motion of the material supply seat is avoided, the power supply is more stable, and the structure is more attractive.

The tectorial membrane structure of this scheme can cooperate with feed mechanism effectively, with the work piece jacking on the feed mechanism to suitable height to come quick laminating film and product through the pressure head, the suitability is good between the mechanism.

The cutting mechanism of the scheme can cut rapidly and stably, and meanwhile, blanking of products can be performed stably and rapidly.

Drawings

FIG. 1 is a perspective view of a laminator of the present invention;

FIG. 2 is a perspective view of the laminator of the present invention with the film feed mechanism frame hidden;

FIG. 3 is a side cross-sectional view of the film unwind mechanism of the present invention;

FIG. 4 is a front cross-sectional view of the film unwinding mechanism of the present invention;

FIG. 5 is an enlarged view of area A of FIG. 4;

FIG. 6 is a partial perspective view of the film feeding mechanism of the present invention (the profile on one side of the frame, part of the chain and two upper position limiting rollers are hidden in the figure);

FIG. 7 is an enlarged view of area B of FIG. 6;

FIG. 8 is a top view of the laminator of the present invention;

FIG. 9 is a perspective view of the heating mechanism of the present invention (only the lower section of the longitudinal rail is shown);

FIG. 10 is a perspective view of the loading mechanism of the present invention;

FIG. 11 is a cross-sectional view of the loading mechanism of the present invention;

FIG. 12 is an enlarged view of area C of FIG. 2;

FIG. 13 is a perspective view of the stitching mechanism of the present invention;

FIG. 14 is a perspective view of the laminating mechanism of the present invention;

FIG. 15 is a cross-sectional view and a partially enlarged view of the film coating mechanism of the present invention;

fig. 16 is an enlarged view of region D in fig. 1.

Detailed Description

Objects, advantages and features of the present invention will be illustrated and explained by the following non-limiting description of preferred embodiments. The embodiments are merely exemplary for applying the technical solutions of the present invention, and any technical solution formed by replacing or converting the equivalent thereof falls within the scope of the present invention claimed.

In the description of the schemes, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the embodiment, the operator is used as a reference, and the direction close to the operator is a proximal end, and the direction away from the operator is a distal end.

Example 1

The film pressing machine disclosed by the invention is explained with reference to the accompanying drawings, and as shown in fig. 1 and fig. 2, the film pressing machine comprises a film unwinding mechanism 1, a film conveying mechanism 2 and a film winding mechanism 3, wherein the film unwinding mechanism 1 is used for unwinding a film roll, and the film conveying mechanism 2 is used for conveying a film supplied by the film unwinding mechanism 1 forwards; the film winding mechanism 3 is used for winding the film conveyed by the film conveying mechanism 2, and can work synchronously to convey the film forwards in a stepping mode.

As shown in fig. 3 and 4, the film unwinding mechanism 1 includes a mounting shaft 11 for mounting a film roll, the mounting shaft 11 is rotatably disposed on a support 12, a cylindrical outer cover 13 fixed on the support 12 is coaxially disposed on an outer periphery of the mounting shaft 11, an end plate 14 of the outer cover 13 facing away from the support 12 is detachably connected to a side plate 15 of the outer cover 13, and the end plate 14 and the side plate 15 are connected by three latches, so as to facilitate opening and closing for replacing the film roll.

As shown in fig. 5, a discharge hole 16 is formed at the side plate 15, a pair of guide shafts 17 are respectively disposed at the inner and outer surfaces of the side plate 15, a gap 18 of each pair of guide shafts 17 faces the discharge hole 16, and the gap 18 is smaller than the width of the discharge hole 16.

As shown in fig. 6, film unwinding mechanism 1 further includes unwinding driving mechanism 19, unwinding driving mechanism 19 includes unwinding driving roller 110 and a plurality of tensioning roller 111, unwinding driving roller 110 is connected with motor 112 driving its rotation, unwinding driving roller 110 can erect on two roller frames 114 in a rotation ground, unwinding driving roller 110's top is provided with one and unreels driven roller 113, and the film is followed unwinding driving roller and the clearance of unreeling between driven roller 113 pass, tensioning roller 111 is two, and the equal height and parallel setting of them is in film conveying mechanism 2's input, and sets up on the roller frame 114.

As shown in fig. 6, the film conveying mechanism 2 includes a frame 21, the frame 21 is disposed between the two roller frames 114 and erected on the roller frames through the unwinding driving roller and the unwinding driven roller, two symmetrical chain transmission mechanisms are disposed on the frame 21, the specific structure of the chain transmission mechanism is known in the art, generally, the chain transmission mechanism includes two end sprockets 23, a plurality of tension sprockets 24, a driving sprocket 25 and a chain 26 sleeved on the two end sprockets, meanwhile, the driving sprockets 25 of the two chain transmission mechanisms 22 are disposed on the same driving shaft 27, and the driving shaft 27 is connected to the conveying motor 22.

As shown in fig. 7, in order to effectively support and convey the film, a film holder 28 is provided inside the chain 26 of each chain transmission mechanism 22, the film holder 28 has a film limiting groove 29, and notches of the film limiting grooves 29 of the film holders 28 on the two chains 26 are oppositely arranged. Meanwhile, the film holder 28 further comprises a connecting part 210, two strip-shaped holes 211 are formed in the connecting part 210, and the pin shaft of the chain 26 is inserted into the strip-shaped holes 211.

As shown in fig. 1 and 7, the film conveying mechanism 2 further includes two guiding blocks 213 and two pairs of limiting rollers 212, which are disposed at the input end of the frame 21, each guiding block is located at the output end of one chain, the guiding blocks 213 are U-shaped, the notches of the guiding grooves 214 of the two guiding blocks are disposed oppositely, and the inlet and outlet ends of the bottom surfaces of the guiding grooves 214 of the guiding blocks 213 are inclined surfaces 215. Each pair of limiting rollers 212 is arranged at the downstream of one guide block 213, one pair of limiting rollers are distributed up and down and the lower limiting rollers are coaxially connected to the front end of the end part chain wheel, and the gap between the pair of limiting rollers 212 is equal to the height of the film limiting groove, so that the film can be effectively limited.

As shown in fig. 1, fig. 2 and fig. 8, the structure of the film winding mechanism 3 is substantially the same as that of the film unwinding mechanism 1, except that a cover is not disposed on the periphery of a winding shaft 35 of the film winding mechanism 3, and the film winding mechanism is only coaxially connected with two baffle discs 34, and meanwhile, the winding shaft is connected with a winding motor 31 for driving the winding shaft to rotate, and the winding motor 31 drives the winding shaft to rotate for winding. The film winding mechanism 3 has a winding drive mechanism 32 similar to the unwinding drive mechanism 19, except that only one winding tension roller 33 is provided.

As shown in fig. 1 and 2, the laminator further includes a heating mechanism 4, a feeding mechanism 5, a laminating mechanism 6, and a cutting mechanism 7.

The heating mechanism 4 is located above and/or below the film conveying mechanism 2 and is used for heating and softening a local area of the film on the film conveying mechanism 2 to obtain a softened area.

The feeding mechanism 5 is located downstream of the heating mechanism 4 and is used for moving the workpiece from the outer side of the film conveying mechanism 2 to the lower part of the softening area.

The film coating mechanism 6 is located at the downstream of the heating mechanism 4 and is arranged close to the heating mechanism 4, and is used for jacking a workpiece located below the softening region on the feeding mechanism 5 to be close to or in contact with the softening region, and enabling the softening region to be tightly attached to the workpiece through air pressure to form an intermediate body.

The cutting mechanism 7 is positioned at the downstream of the film coating mechanism 6 and is used for cutting and separating the intermediate body from the film on the film conveying mechanism 2.

As shown in fig. 9, the heating mechanism 4 includes a heater 41, the heater 41 is located above the film conveying mechanism 2, the heating range of the heater is downward, the heater can cover the area between the two chains 26, and the operating position of the heater 41 can be fixed. Preferably, the heater 41 is connected with a height-adjusting mechanism 42 for driving the heater to move up and down, the height-adjusting mechanism 42 includes a bracket 43 located at the side of the film conveying mechanism 2, a lead screw 44 extending along the longitudinal direction Z is arranged on the bracket 43, a screw of the lead screw 44 is connected with a lifting motor 46 for driving the lead screw to rotate through a transmission mechanism 45, and the transmission mechanism 45 is belt transmission, chain transmission, gear transmission or the like; of course, the lift motor 46 may be directly connected to the screw. The movable nut of the screw rod 44 is connected with a lifting frame 47, the lifting frame 47 extends out of the side part of the bracket 43 and is positioned above the film conveying mechanism 2, the heater 41 is arranged at the bottom of the lifting frame 47, and the lifting frame is arranged on a longitudinal rail 48 arranged on the bracket 43 in a sliding manner. Of course, the height adjusting mechanism 42 may be replaced by a member such as an air cylinder or a hydraulic cylinder. This avoids the heater 41 heating areas of the film that do not need to be softened.

The heating range of the heater 41 can be selected to be matched with the size of the workpiece, however, for some smaller workpieces, it is difficult to find the heater 41 with the heating range matched with the smaller workpieces, that is, the heating range of the heater 41 is usually significantly larger than that of the workpiece, so as shown in fig. 2, in order to avoid the excessively large softening region affecting the stability of film conveying, preferably, a heat insulation plate 49 is further arranged on the frame 21, and the heat insulation plate 49 shields a part of the heating range of the heater 41, so that the part of the heating region does not heat the film, local over-heating is avoided, and the control of the whole working cycle is facilitated.

As shown in fig. 10, the feeding mechanism 5 includes a sliding frame 51, a sliding member 52 is disposed on the sliding frame 51 and can slide between a first height and a second height, a shock absorber 53 is disposed on the sliding frame 51, and the shock absorber 53 plays a role in buffering when the sliding member 52 falls from the first height to the second height. The sliding member 52 is provided with a feeding seat 54, the feeding seat 54 is provided with a convex portion 55, and the top surface of the convex portion 55 is concavely provided with a positioning groove or a positioning block and other structures for positioning a workpiece. The sliding frame 51 is disposed on a fixed block of the rotary table 56, and the specific structure of the rotary table 56 is known in the art and will not be described herein. The turret 56 drives the carriage 51 between a first position, in which the supply seat 54 is outside the film feeding means 2, and a second position, in which the supply seat 54 is below the softening zone, i.e. between the two chains 26 and below the two profiles 216 of the frame 21.

During loading, the workpiece is also detected, and the workpiece needs to be supplemented with light to illuminate the product because the equipment is usually arranged in a dark enclosure, so that an image acquisition device (not shown in the figure) in the enclosure can acquire a cleaning image of the product to ensure the detection precision. If the light source 57 is provided to illuminate the product directly from above the product, the environment and the product may be too bright, affecting the recognition accuracy. As shown in fig. 11, a light source 57 is integrated in the material supplying base 54, the light source 57 is an LED lamp, a light hole 58 for emitting light of the light source 57 is formed on the top surface of the material supplying base 54, and when a workpiece is placed on the material supplying base 54, the light emitted from the light hole 58 can keep the workpiece at a proper brightness.

Since the material feeding base 54 needs to rotate, it is a problem to supply power to the light source 57, and although a conventional external wiring structure can be adopted, in such a structure, the material feeding base 54 needs to rotate and then be reversed to reset, and cannot rotate in a single direction. In consideration of the fact that the light source 57 is not required to be powered for detection when the feeding base 54 is in the first position, but is not required to be powered for rotation below the film feeding mechanism 2.

As shown in fig. 10 and 11, the light source 57 is electrically connected to a plug 59 below the sliding member 52, the plug 59 is connected to the feeding base 54 by a guide rod 510 penetrating through the sliding member 52, a wire passing pipe 511 is further disposed between the plug 59 and the feeding base 54, the wire passing pipe 511 also penetrates through the sliding member 52, a wire connecting the light source and the plug is arranged in the wire passing pipe 511, and a first spring 512 is disposed between the plug 59 and the sliding member 52. A socket 513 is provided below the plug 59 of the slider in the first position, the socket 513 being connected to a lifting mechanism 514 which drives the slider to move between a third height at which the socket 513 is electrically connected to the plug 59 and a fourth height at which the socket 513 is separated from the plug 59. The first spring 512 plays a role of buffering and stabilizing connection when the convex electrode 516 protruding from the top surface of the socket 513 is electrically connected with the concave electrode 517 recessed from the bottom of the plug 59.

As shown in fig. 10 and 11, in order to ensure that the sliding member 52 can be at the second lower height in the normal state, the sliding member 52 is further connected to the lower end of a second spring 515, the upper end of the second spring 515 is fixed to the top of the sliding frame 51, the second spring 515 is compressed when the sliding member 52 is lifted, and the sliding member 52 is moved downwards to be reset when the sliding member 52 is not subjected to an external force.

As shown in fig. 10, in order to improve efficiency, the two sliding frames 51 are symmetrically arranged on the rotary table 56, and when the sliding frame 51 rotates to the first position, the other sliding frame 51 is in the second position, so that film covering and material loading can be continuously and alternately carried out, and the efficiency is improved.

As shown in fig. 2, the film coating mechanism 6 includes a jacking mechanism 61 for driving the workpiece to jack up and approach or contact the softened region, and a pressing mechanism 62 for matching with the jacking mechanism 61 to attach the softened region to the workpiece.

As shown in fig. 12, the jacking mechanism 61 is located below the section 216 of the film conveying mechanism 2, and includes a jacking cylinder 63, the jacking cylinder 63 is fixed on a fixed mounting plate 64, the cylinder shaft of the jacking cylinder 63 faces upward and is connected with a jacking member 65, the bottom plate of the jacking member 65 is further connected with four guide rods 66, the guide rods 66 are inserted in guide sleeves 67, the guide sleeves 67 are fixed on the mounting plate 64, so that when the cylinder shaft of the jacking cylinder 63 extends, the jacking block 66 moves upward to jack and contact with the bottom surface of the plug 59 in the feeding mechanism 5 in the second position, and pushes the plug 59 to drive the sliding member 52 to move upward so as to make the workpiece on the feeding seat 54 contact with the softened region of the film; conversely, when the top block 66 is lowered, the feeder base 54 is separated from the workpiece attached to the film.

As shown in fig. 13, the pressing mechanism 62 includes a pressing block 67 and a pressing driving mechanism 68 for driving the pressing block to move up and down, the pressing block 67 has an air groove 69 with a downward opening and an air hole 610 communicated with the air groove 69 and used for connecting an air source, the pressing driving mechanism 68 drives the air groove 69 to contact with the softened film, meanwhile, the material supply seat 54 supports the workpiece and the softened region of the film, the air groove 69 and the softened region form a closed space, at this time, the air source is opened to inflate the sealed space through the air hole 610, so that the softened region of the film and the workpiece are tightly attached together under the action of air pressure to achieve tight attachment of the film and the workpiece. The air groove 69 is preferably a rounded rectangular groove, and a sealing ring 611 is provided on the bottom surface thereof, thereby ensuring sealing performance during air supply.

As shown in fig. 13, the pressing driving mechanism 68 includes a pressing cylinder 613 fixed on the stand 612, a cylinder shaft of the pressing cylinder 613 faces downward, the cylinder shaft is connected with an adaptor 614, the bottom of the adaptor 614 is provided with the pressing block 67, the adaptor 614 is connected with a guide shaft 615, the guide shaft 615 is telescopically arranged in a guide sleeve 616, and the guide sleeve 616 is fixed on the stand 612. The stand 612 includes two columns 617 on both sides of the film feeding mechanism 2, wherein one column 617 is disposed at a center of the turntable 56.

As shown in fig. 14, the cutting mechanism 7 includes a lower cutter 71 and an upper cutter 72, which are oppositely disposed, the lower cutter 71 is fixed, the top of the lower cutter is equal to the bottom of the film on the film conveying mechanism 2 in height, specifically, the lower cutter 71 is arranged on the mounting seat 73, the mounting base 73 is movably disposed on a supporting plate 74 along the length direction X of the film feeding mechanism 2, the mounting base 73 is further connected with an adjusting mechanism, the adjusting mechanism comprises an adjusting screw 75, a movable nut 76 of the adjusting screw 75 is connected with the bottom of the mounting base 73, one end of the screw rod of the adjusting screw 75 is connected with an adjusting disc 77, the position of the movable nut 76 can be adjusted by rotating the adjusting disc 77, the position of the mounting base 73 on the support plate 74 is thus adjusted, which facilitates the installation and commissioning of the device to match the cutting action to the tempo of the other action.

As shown in fig. 14, the lower cutter 71 has a cutting hole 78, the cutting edge of the lower cutter 71 is the upper edge 79 of the cutting hole 78, the side profile of the upper cutter 72 matches the cutting hole 78 and the cutting edge of the upper cutter 72 is the outer edge 710 of the bottom surface thereof. The upper cutter 72 is normally located above the film conveying mechanism 2 and connected to a cutting driving mechanism 711, and the structure of the cutting driving mechanism 711 is the same as that of the pressing driving mechanism 68, which is not described herein again. When the cutting driving mechanism 711 drives the upper cutter 72 to move downward, the outer edge 710 of the bottom surface of the upper cutter cooperates with the upper edge 79 of the cutting hole 78 of the lower cutter 71 to cut the workpiece and the intermediate body of the softened area from the film, and the cut intermediate body is the product 9 and directly falls into the cutting hole 78. At the same time, the upper cutter 72 extends at least partially into the cutting opening 78 of the lower cutter 71.

As shown in fig. 14 and 15, in order to facilitate the intermediate body to smoothly enter the notch of the lower cutting knife 71, a top surface of the lower cutting knife 71 facing the feeding side plate 715 of the film unwinding mechanism 1 is formed as a guiding inclined surface 712, and the guiding inclined surface 712 extends from an outer edge to an inner edge of the feeding side plate 715 to the top surface of the feeding side plate 715 in an inclined manner.

As shown in fig. 15, the upper cutter 72 is preferably a slot with a downward opening, the side plates of the slot enclose a rounded rectangle, and the bottom surfaces 716 of the side plates are curved or arc lines, so that the cutting edges on different sides of the upper cutter 72 are in point contact with the film during cutting, thereby achieving cutting more quickly and with high quality. Meanwhile, a group of pushing upright posts 717 is arranged in the groove body, and the bottom of the pushing upright posts 717 is equal to the lowest point of the upper cutter 72 in height, so that after cutting, the intermediate body can be effectively separated from the upper cutter 72 and cannot enter the groove body of the upper cutter 72. In addition, the outer edge 710 of the bottom surface of the side plate of the upper cutter 72 is lower than the inner edge 718, i.e., a slope is formed between the outer edge 710 and the inner edge 718.

As shown in fig. 15 and 16, in order to facilitate blanking, the lower cutter 71 is arranged on a carrier plate 719 of the mounting seat, a blanking hole 720 corresponding to the blanking hole 78 is formed in the carrier plate 719, a blanking slope 721 is arranged below the blanking hole 720, and the cut intermediate enters the blanking slope 721 through the blanking hole 720 and then slides to the lower end of the blanking slope.

As shown in fig. 16, at the end of the blanking slope 721, the product at the end of the blanking slope 721 can be moved out of the blanking slope 721 by the blanking mechanism 8, and in order to avoid interference between the intermediate body sliding down from the upper end of the blanking slope 721 and the blanking mechanism 8, as shown in fig. 15, a baffle 722 is arranged below the blanking hole 720, and the baffle 722 can move between an open position and a closed position, and at the closed position, the baffle 722 blocks the lower end of the blanking hole 720; in the open position, the shutter 722 opens the lower end of the blanking hole 720.

For example, the baffle 722 is perpendicular to the axis of the blanking hole 720, and the baffle 722 is further connected to a translation mechanism for driving the translation (moving in the direction perpendicular to the axis of the blanking hole 720), which may be a cylinder or other device capable of generating linear movement.

As shown in fig. 14 and 15, the baffle 722 is connected to a rotating shaft 723, the rotating shaft 723 is rotatably disposed on the mounting frame 724 at the side of the mounting seat 73, the mounting frame 724 is fixed on a side of the mounting seat 73 facing the film unwinding mechanism 1, one end of the rotating shaft 723 is pivoted with one end of a swing arm 725, the other end of the swing arm 725 is pivoted on a cylinder shaft of an opening and closing cylinder 726, the opening and closing cylinder 726 is pivoted on the hinged seat 727 on the mounting frame 724, when the cylinder shaft of the opening and closing cylinder 726 retracts, the baffle 722 seals the lower end of the blanking hole 720, when the cylinder shaft of the opening and closing cylinder 726 extends out, the swing arm 725 is driven to rotate around the rotating shaft 723, meanwhile, the electric rotating shaft 723 rotates, the rotating shaft 723 rotates to enable the baffle 722 to rotate downwards to open a certain angle, so that the intermediate body thereon can fall from the baffle 722 into the blanking ramp 721 for blanking.

In addition, the intermediate on the blanking slope 721 can be detected, and the qualified product and the unqualified product can be distinguished according to the detection result and moved to different positions respectively. In actual operation, the non-defective products and the defective products can be moved to different positions by one blanking mechanism 8. In this embodiment, as shown in fig. 16, a defective product is dropped into one position by a stopper mechanism 728 provided at the end of the blanking slope 721, and a defective product at the stopper mechanism 728 is moved to another position by another transfer blanking mechanism 8.

As shown in fig. 16, the stopping mechanism 728 includes a bottom plate 729 engaged with the end of the blanking ramp 721, side stoppers 730 located at the outer sides of the two side stoppers of the blanking ramp 721 are disposed on the bottom plate 729, the two side stoppers 730 are respectively pivoted on a support frame 731, the support frame 731 is fixed in position, the bottom of the bottom plate 729 is hinged to the cylinder shaft of the blanking cylinder 732, the other end of the blanking cylinder 732 is hinged to the support frame 731, the bottom of the bottom plate 729 is further connected to an adapter plate 733, the adapter plate 733 is provided with an end opening and closing cylinder 735, the cylinder shaft of the end opening and closing cylinder 735 is perpendicular to the bottom plate 729 and is connected to an end stopper 734, the stopper of the end plate 14, the side stoppers 730 and the bottom plate 729 form a limiting groove, when the cylinder shaft of the end opening and closing cylinder 735 retracts, the end stopper 734 is located below the top surface of the bottom plate 729, when the cylinder shafts of the discharging cylinders 732 are simultaneously retracted, the intermediate body positioned on the bottom plate 729 can slide down along the bottom plate 729 to perform discharging.

As shown in fig. 16, the blanking mechanism 8 is disposed at an output end of the film conveying mechanism 2 and on the frame 21, and includes a material taking clamping jaw 81, the material taking clamping jaw 81 can adopt vacuum adsorption or clamping and the like to grasp a workpiece, the material taking clamping jaw 81 is connected to a moving structure 82 for driving the material taking clamping jaw to move, and the moving structure 82 can enable the material taking clamping jaw 81 to move to an outer side of the blanking slope 721, which can be any of various known moving structures 82, and details of which are not described herein.

When the whole device works, the control of each mechanism can be carried out by combining various control devices (such as a PLC (programmable logic controller) and the like) with a sensor (such as a proximity sensor and the like), so that the whole film pressing machine automatically works, the corresponding control technology is the prior art, is not an innovation point of the scheme, and is not described herein any more.

Example 2

The embodiment discloses a die pressing method of the laminator, which at least comprises the following steps:

s1, after the film unreeling mechanism 1, the film conveying mechanism 2 and the film reeling mechanism 3 are matched to convey the region to be heated of the film to the heating mechanism 4, stopping conveying the film;

s2, the lifting mechanism 514 starts to move the heater 41 in operation to a position close to the film on the conveying mechanism, and the heater 41 heats the region to be heated within the heating range to be softened to obtain a softened region.

And S3, after heating, the film unwinding mechanism 1, the film conveying mechanism 2 and the film winding mechanism 3 cooperate to continuously convey the film to the softening area downstream and convey the film to the film covering mechanism 6, and then the film conveying is stopped. In this case, the partial region of the film upstream of the softening region is heated under the heater 41.

S4, a workpiece is placed on the feeding seat at the first position manually or through automatic equipment, the lifting mechanism 514 drives the socket 513 to lift and be electrically connected with the plug 59, at the moment, image acquisition of the workpiece on the feeding seat is carried out through the vision acquisition device and analysis and detection are carried out, after the detection is qualified, the lifting and structure drives the socket 513 to move downwards to be separated from the plug 59, the rotary table 56 drives the feeding seat to move to the second position, at the moment, the workpiece is located below the softening area in the step S3, and at the moment, the other feeding seat can be used for testing a new workpiece. When the apparatus is initially started, the work may be performed before or simultaneously with any of the steps S1-S3.

S5, the film covering mechanism 6 is started, the top block 66 of the jacking mechanism 61 jacks up the plug 59 above the jacking mechanism, and therefore the workpiece on the feeding seat 54 is attached to the softened area in the S3. Of course, in other embodiments, the workpiece may not conform to the softened region, but may be immediately adjacent. At the same time, or after or before, the pressing driving mechanism 68 drives the pressing block 67 to contact with the film and cooperate with the feeding seat 54 and the workpiece to clamp the film, then the air hole 610 is used for ventilating the inside of the pressing block 67, and the softened region of the film is tightly attached to the workpiece by air pressure to form an intermediate body, so that the compounding is realized.

And S6, the film unwinding mechanism 1, the film conveying mechanism 2 and the film winding mechanism 3 are matched to convey the film to the downstream continuously, and the film conveying is stopped after the intermediate body moves to the cutting mechanism 7.

S7, the cutting driving mechanism 711 drives the upper cutter 72 to move downward, and cooperates with the lower cutter 71 to separate the intermediate from the film, the cut intermediate enters the baffle 722 through the cutting hole 78, the intermediate enters the blanking slope 721 and slides to the stopping mechanism 728 when the baffle 722 is opened, and if the intermediate is detected to meet the detection requirement, the intermediate is grabbed by the blanking mechanism 8 and then blanked; otherwise, the opening of the blocking mechanism 728 causes the rejected intermediate bodies to fall into the reject discharge position.

Each softened area of the film is moved to the film coating mechanism 6 and the cutting mechanism 7 in sequence in a stepping mode to coat the film and cut. The cut film waste (film having a cut notch) is wound up by the film winding mechanism 3.

The invention has various embodiments, and all technical solutions formed by adopting equivalent transformation or equivalent transformation are within the protection scope of the invention.

Claims

1. Film pressing machine, its characterized in that: comprises that

The film unwinding mechanism is used for unwinding the film;

the film conveying mechanism is used for conveying the film;

the film winding mechanism is used for winding a film;

the film coating mechanism is positioned at the downstream of the heating mechanism and used for jacking the workpiece positioned below the softening region on the feeding mechanism to be close to or in contact with the softening region and enabling the softening region to be tightly attached to the workpiece through air pressure to form an intermediate body;

2. A laminator according to claim 1, wherein: the film conveying mechanism comprises a driving motor and two chain transmission mechanisms driven by the driving motor, a film clamp is arranged on the inner side of each chain transmission mechanism, each film clamp is provided with a film limiting groove, and notches of the limiting grooves of the film clamps on the two chains are arranged oppositely.

3. The molding machine according to claim 1, wherein: feed mechanism includes the carriage, be provided with on the carriage and can be at gliding slider between first height and second height, be provided with the feed seat on the slider, the integration has the light source in the feed seat, the top surface of feed seat is formed with the confession the light trap that the light of light source jetted out, the carriage sets up on the revolving stage and by the revolving stage drive removes between primary importance and second place, and in primary importance department, the feed seat is located film conveying mechanism's the outside, in second place department, the feed seat is located soften regional below.

4. A laminator according to claim 3, wherein: the light source is electrically connected with a plug below the sliding part, the plug is connected with the feeding seat through a guide rod penetrating through the sliding part, a first spring is arranged between the plug and the sliding part, the feeding seat is located at a first position, a socket is arranged below the plug connected with the feeding seat, the socket is connected with a lifting mechanism driving the lifting mechanism to move between a third height and a fourth height, the socket is electrically connected with the plug at the third height, and the socket is separated from the plug at the fourth height.

5. A laminator according to claim 1, wherein: the laminating mechanism comprises a jacking mechanism used for driving the workpiece to jack and the softening region to approach or contact, and a pressing mechanism used for being matched with the jacking mechanism to compound the softening region and the workpiece, wherein the pressing mechanism comprises a pressing block and a pressing driving mechanism used for driving the pressing block to lift, and the pressing block is provided with an air groove with a downward notch and an air hole communicated with the air groove and used for being connected with an air source.

6. A laminator according to any of claims 1-5, wherein: the cutting mechanism comprises an upper cutter and a lower cutter which are oppositely arranged, the position of the lower cutter is fixed, the upper cutter is connected with a cutting driving mechanism, the lower cutter is provided with a cutting hole, the cutting edge of the lower cutter is the upper edge of the cutting hole, the upper cutter is a groove body with a notch facing the cutting hole, the side profile of the upper cutter is matched with the cutting hole, and the cutting edge of the upper cutter is the outer edge of the bottom surface of the upper cutter.

7. A laminator according to claim 6, wherein: the cutting edge of the upper cutter is a curve or an arc line and/or a group of pushing upright posts is arranged in the groove body.

8. A laminator according to claim 6, wherein: the lower cutter is arranged on a carrier plate, a blanking hole corresponding to the cutting hole is formed in the carrier plate, and a blanking slope is arranged below the blanking hole.

9. A laminator according to claim 8, wherein: a baffle plate is arranged below the blanking hole, the baffle plate can move between an opening position and a closing position, and the lower end of the blanking hole is blocked by the baffle plate at the closing position; in the open position, the flapper opens the lower end of the feed aperture.

10. A molding method of a laminator according to any of claims 1-9, wherein: at least comprises the following steps: