阅读说明：本技术 一种汽车顶棚天窗热包边装置 (Hot device of borduring of car roof skylight ) 是由 程美 陈城勇 梅东挺 王金林 于 2021-06-22 设计创作，主要内容包括：本发明公开了一种汽车顶棚天窗热包边装置,包括机架,机架上设有：放置汽车顶棚的定位部；用于对包边基材进行加热的加热组件；包边机构,它包括四个直边镶块以及驱动机构,每相邻的两个直边镶块之间设有R角镶块,驱动机构用于驱动各直边镶块、R角镶块水平运动以及竖向运动；补偿机构,包括补偿镶块以及补偿驱动缸,当直边镶块以及R角镶块水平往外运动时,每个R角镶块的两侧与相邻的直边镶块之间形成间隙,补偿镶块滑动配合在间隙内；压边机构,用于对翻折包边的基材进行压紧。本发明公开的一种汽车顶棚天窗热包边装置,包边效果好,且包边时在顶棚四个R角位置包边平整、不鼓包,提升包边产品外形美观度。(The invention discloses a hot edge covering device for a sunroof of an automobile, which comprises a rack, wherein the rack is provided with: placing a positioning part of the automobile ceiling; the heating assembly is used for heating the edge-covered substrate; the edge covering mechanism comprises four straight edge inserts and a driving mechanism, an R-angle insert is arranged between every two adjacent straight edge inserts, and the driving mechanism is used for driving each straight edge insert and each R-angle insert to horizontally move and vertically move; the compensation mechanism comprises compensation inserts and a compensation driving cylinder, when the straight-edge inserts and the R-angle inserts horizontally move outwards, a gap is formed between each two sides of each R-angle insert and the adjacent straight-edge insert, and the compensation inserts are in sliding fit in the gaps; and the edge pressing mechanism is used for pressing the base material of the folded and wrapped edges. The hot edge covering device for the automobile ceiling skylight, disclosed by the invention, has a good edge covering effect, and the edges are flat and do not bulge at four R-angle positions of the ceiling during edge covering, so that the appearance attractiveness of edge-covered products is improved.)

1. The utility model provides a hot borduring device of car roof skylight, includes frame (1), its characterized in that: the frame (1) is provided with

A lower die, the upper end of the lower die is convexly provided with a positioning part (2) for inserting and positioning a skylight hole of an automobile ceiling,

the upper die is arranged above the lower die in a vertically slidable manner, a heating assembly is arranged on the upper die, when the die is closed, the heating mechanism is used for heating the base material to be wrapped at the position of the skylight of the automobile ceiling,

the edge covering mechanism is connected to the lower die and comprises four straight edge inserts (3) which are distributed in a rectangular shape and a driving mechanism, an R-angle insert (4) is arranged at a corner position between every two adjacent straight edge inserts (3), the driving mechanism is used for driving each straight edge insert (3) and the R-angle insert (4) to move horizontally and vertically so as to realize that a base material at the position close to the skylight on the inner side of the automobile ceiling is tightly attached to the circumferential edge of the skylight and is turned over and covered towards the outer side of the automobile ceiling,

the compensation mechanism is connected to the edge covering mechanism and comprises compensation inserts (27) and a compensation driving cylinder (28) for driving the compensation inserts (27) to horizontally move, when the straight-edge inserts (3) and the R-angle inserts (4) horizontally move outwards, a gap (29) is formed between each two sides of each R-angle insert (3) and the adjacent straight-edge insert (4), and the compensation inserts (27) are in sliding fit in the gaps (29),

and the edge pressing mechanism is connected to the upper die and used for pressing the base material, which is turned over and covered to the position, close to the skylight, outside the automobile roof, of the edge.

2. The automotive sunroof heat hemming device of claim 1 wherein: the upper die comprises a mounting plate (5) and a first driving cylinder (6) for driving the mounting plate (5) to lift, and the first driving cylinder (6) is connected to a top plate of the rack (1); the lower extreme of mounting panel (5) is equipped with positioning pressure plate (7) that are used for compressing tightly spacing car roof, the middle part of positioning pressure plate (7) is equipped with dodges through-hole (7.1), it is equipped with connecting plate (8) to slide in through-hole (7.1) to dodge, be equipped with on mounting panel (5) and be used for driving second driving cylinder (9) of connecting plate (8) activity from top to bottom, heating element detachable installs the lower extreme at connecting plate (8).

3. The automotive sunroof heat hemming device of claim 2 wherein: a plurality of lower positioning columns (24) are arranged on a bottom plate of the lower die, and positioning insertion holes (24.1) are formed in the top ends of the lower positioning columns (24); be equipped with first reference column (25) on the lower terminal surface of mounting panel (5), the lower terminal surface of connecting plate (8) is equipped with reference column (26) on the second, the bottom of reference column (26) all is equipped with and inserts the post with the corresponding location of location jack (24.1) on each lower reference column (24) in first reference column (25), the second.

4. The automotive sunroof heat hemming device according to claim 1 or 2 wherein: the heating assembly comprises an annular heating block (10), the heating block (10) is arranged on the lower end face of the connecting plate (5), and when the connecting plate (8) moves downwards to a set position, the heating block (10) is located outside each insert, so that an accommodating cavity (11) for accommodating a base material to be covered is formed between the inner side wall of the heating block (10) and the outer side walls of each straight-edge insert (3) and the R-angle insert (4).

5. The automotive sunroof heat hemming device of claim 2 wherein: the edge pressing mechanism comprises a plurality of pressing blocks (12) and a plurality of third driving cylinders (13), the pressing blocks (12) are arranged at the upper end of the positioning pressing plate (7) along the circumferential direction, and the third driving cylinders (13) are used for driving the pressing blocks (12) to horizontally move towards the center of the avoiding through hole (7.1) respectively.

6. The automotive sunroof heat hemming device of claim 1 wherein: the driving mechanism comprises a lifting plate (14) and a fourth driving cylinder (15) for driving the lifting plate (14) to move up and down, the circumferential outer edge of the lifting plate (14) is respectively connected with four upright posts (16) of the lower die in a sliding manner, and the fourth driving cylinder (15) is connected to a bottom plate of the lower die; a plurality of installing seats (17) distributed along the circumferential direction are arranged on the lifting plate (14), connecting rods (18) extending along the vertical direction are arranged on the installing seats (17), and the upper end of each connecting rod (18) is connected with the corresponding straight edge insert (3) or the corresponding R-angle insert (4); the positioning part (2) is provided with a mounting through hole (2.1) corresponding to a skylight of an automobile ceiling, and the four straight edge inserts (3) and the four R corner inserts (4) are arranged along the edge of the mounting through hole (2.1); and a driving component for driving the connecting rod (18) to horizontally move along the radial direction of the mounting through hole (2.1) is arranged on the mounting seat (17).

7. The automotive sunroof heat hemming device of claim 6 wherein: drive assembly include fifth driving cylinder (19), fifth driving cylinder (19) are connected on mount pad (17), still be equipped with linear slide rail (20) on mount pad (17), sliding fit has slider (21) on linear slide rail (20), the lower extreme and the slider (21) of connecting rod (18) are connected, the piston rod of fifth driving cylinder (19) is connected on the lateral wall of connecting rod (18).

8. The automotive sunroof heat hemming device of claim 7 wherein: the guide rod (22) is arranged on the side wall of the lower end of the connecting rod (18), the guide sleeve (23) is arranged on the mounting seat (17), and one end, far away from the connecting rod (18), of the guide rod (22) is in sliding fit in the guide sleeve (23).

9. The automotive sunroof heat hemming device of claim 6 wherein: a fixing plate (30) is integrally formed at one end, close to the mounting through hole (2.1), of the R-angle insert (4), and the compensation driving cylinder (28) is connected to one end, far away from the R-angle insert (4), of the fixing plate (30); the compensation insert (27) comprises a linkage plate (27.1) connected with a piston rod of a compensation driving cylinder (28), compensation insert blocks (27.2) are respectively arranged at two ends of the linkage plate (27.1), and the two compensation insert blocks (27.2) are in sliding fit with two sides of the R-angle insert (4).

10. The automotive sunroof heat hemming device of claim 1 wherein: the frame (1) is also provided with an electric cabinet (33), and the electric cabinet (33) is provided with a control button electrically connected with the edge covering mechanism, the compensation mechanism and the edge pressing mechanism.

Technical Field

The invention relates to the technical field of automobile ceiling processing, in particular to a hot edge covering device for an automobile ceiling skylight.

Background

In the process of processing the semi-finished product of the automotive interior ceiling, the decorative fabric adhered to the inner surface of the skylight frame of the semi-finished product of the interior ceiling needs to be turned over from the inner surface of the skylight frame to the outer surface of the skylight opening part and adhered to the outer surface of the skylight frame. The prior ceiling fabric edge covering usually needs glue spraying firstly and then flanging and bonding. The novel composite fabric is formed by compounding PU, glass fiber, fabric and PP, the fabric does not need to be sprayed with glue when being bound and bonded, the fabric is directly heated, the composite fabric can be hot-melted and then bound and pressed, and the original glue spraying process is omitted.

However, in the existing hot edge covering tool structure, the structure is complex, the edge covering effect on the position of a skylight of an automobile ceiling is poor, the edge covering at four R-angle positions of the skylight of the ceiling is uneven, the phenomenon of bulging easily occurs, the appearance attractiveness of the product after edge covering is poor, and the qualified rate is low.

Disclosure of Invention

The invention aims to solve at least one technical problem in the prior art, and provides the hot edge covering device for the automobile roof skylight, which has a good edge covering effect, and can be used for smoothly covering edges at four R corners of the roof without bulging during edge covering, so that the attractive appearance of edge covering products is improved.

The technical scheme adopted by the invention is as follows: the hot edge covering device for the automobile ceiling skylight comprises a rack, wherein the rack is provided with a hot edge covering device

A lower die, wherein the upper end of the lower die is convexly provided with a positioning part for inserting and positioning a skylight hole of the automobile ceiling, the positioning part is provided with an installation through hole corresponding to the skylight hole of the automobile ceiling,

the upper die is arranged above the lower die in a vertically slidable manner, a heating assembly is arranged on the upper die, when the die is closed, the heating mechanism is used for heating the base material to be wrapped at the position of the skylight of the automobile ceiling,

the edge covering mechanism is connected to the lower die and comprises four straight edge inserts which are distributed in a rectangular shape and a driving mechanism, an R-angle insert is arranged at a corner position between every two adjacent straight edge inserts, the driving mechanism is used for driving each straight edge insert and each R-angle insert to horizontally move and vertically move so as to realize that a base material at the position close to a skylight on the inner side of an automobile ceiling is tightly attached to the circumferential edge of the skylight and is turned over and covered towards the outer side direction of the automobile ceiling,

the compensation mechanism is connected to the edge covering mechanism and comprises compensation inserts and a compensation driving cylinder for driving the compensation inserts to horizontally move, when the straight-edge inserts and the R-angle inserts horizontally move outwards, a gap is formed between each two sides of each R-angle insert and the adjacent straight-edge inserts, the compensation inserts are in sliding fit in the gaps,

and the edge pressing mechanism is connected to the upper die and used for pressing the base material, which is turned over and covered to the position, close to the skylight, outside the automobile roof, of the edge.

Compared with the prior art, the invention has the following advantages:

the edge covering mechanism is a special tool for covering the base material at the position of the skylight of the automobile ceiling, and a positioning part for positioning the automobile ceiling is arranged on a lower die in the structure of the edge covering mechanism, so that the position of the skylight of the ceiling structure is ensured to be limited stably, and the quality of a subsequent base material edge covering structure is improved; in addition, in the structure of the invention, the upper die is also provided with a blank pressing mechanism for pressing the base material from the folded edge to the position close to the skylight outside the automobile ceiling, so that the bonding stability and firmness of the base material after edge covering with the ceiling main body are further improved; on the other hand, in the structure, when the edge is covered, all the straight edge inserts and the R-angle inserts move outwards and horizontally to promote the base material to be turned outwards, and at the moment, if all the inserts move downwards directly, bulges are generated at the positions corresponding to all the gaps when the base material is attached to the edge downwards, and the structure is correspondingly provided with the compensation mechanism, namely, before each insert moves downwards, the compensation driving cylinder is operated to drive each compensation insert to move and match in a gap between each R-angle insert and an adjacent straight edge insert, so that each straight edge insert and each R angle insert surround along the circumferential direction to form a complete edge-covering insert component, at the moment, all the inserts are driven downwards to slowly push the base material to adhere along the frame on the ceiling corresponding to the skylight, so that the R-angle position of the edge-covering base material is smooth and round in the edge-covering process, and the bulge cannot occur.

Further, the upper die comprises a mounting plate and a first driving cylinder for driving the mounting plate to lift, and the first driving cylinder is connected to a top plate of the rack; the lower extreme of mounting panel is equipped with the positioning pressure plate who is used for compressing tightly spacing car roof, positioning pressure plate's middle part is equipped with dodges the through-hole, dodge and slide in the through-hole and be equipped with the connecting plate, be equipped with the second driving cylinder that is used for driving the connecting plate activity from top to bottom on the mounting panel, heating element detachable installs the lower extreme at the connecting plate.

As an improvement, a bottom plate of the lower die is provided with a plurality of lower positioning columns, and the top ends of the lower positioning columns are provided with positioning jacks; the lower terminal surface of mounting panel is equipped with first reference column on, the lower terminal surface of connecting plate is equipped with reference column on the second, the bottom of reference column on first reference column, the second all is equipped with and inserts the post with the corresponding location of location jack on each reference column down. In the structure, the downward limit positions of the mounting plate and the connecting plate are effectively limited by the arrangement of the corresponding upper positioning columns and the corresponding positioning jacks.

Still further, the heating assembly comprises an annular heating block, the heating block is arranged on the lower end face of the connecting plate, and when the connecting plate moves downwards to a set position, the heating block is located outside each insert, so that an accommodating cavity for accommodating a base material to be wrapped is formed between the inner side wall of the heating block and each straight edge insert and the outer side wall of the R-corner insert. The heating of substrate is realized through annular heating block in this structure, and the heating is even, convenient.

Still further, the edge pressing mechanism comprises a plurality of pressing blocks and a plurality of third driving cylinders, the pressing blocks are arranged at the upper end of the positioning pressing plate along the circumferential direction, and the third driving cylinders are used for driving the pressing blocks to horizontally move towards the center of the avoiding through hole respectively. The base material after realizing borduring through a plurality of briquets in this structure carries out further compressing tightly with the ceiling main part, effectively improves base material bordure back and ceiling main part bonded stability and fastness.

Furthermore, the driving mechanism comprises a lifting plate and a fourth driving cylinder for driving the lifting plate to move up and down, the circumferential outer edges of the lifting plate are respectively connected with the four upright posts of the lower die in a sliding manner, and the fourth driving cylinder is connected to the bottom plate of the lower die; the lifting plate is provided with a plurality of mounting seats distributed along the circumferential direction, the mounting seats are provided with connecting rods extending along the vertical direction, and the upper ends of the connecting rods are respectively connected with the corresponding straight edge insert or R-angle insert; the positioning part is provided with a mounting through hole corresponding to the skylight of the automobile ceiling, and the four straight edge inserts and the four R corner inserts are arranged along the edge of the mounting through hole; and the mounting seat is provided with a driving assembly for driving the connecting rod to horizontally move along the radial direction of the mounting through hole.

Still further, the drive assembly include a fifth drive cylinder, the fifth drive cylinder is connected on the mount pad, still be equipped with the linear slideway on the mount pad, sliding fit has the slider on the linear slideway, the lower extreme and the slider of connecting rod are connected, the piston rod of fifth drive cylinder is connected on the lateral wall of connecting rod. The arrangement of the linear slide rail and the slide block in the structure enables the horizontal movement of the connecting rod to be more stable, deviation cannot occur, and edge covering effect is guaranteed.

And the side wall of the lower end of the connecting rod is provided with a guide rod, the mounting seat is provided with a guide sleeve, and one end of the guide rod, which is far away from the connecting rod, is in sliding fit in the guide sleeve. The setting of guide bar and uide bushing in this structure, further carry on spacingly to connecting rod horizontal migration, guarantee the accuracy of shift position.

In a further improvement, a fixing plate is integrally formed at one end of the R-angle insert close to the mounting through hole, and the compensation driving cylinder is connected to one end of the fixing plate far away from the R-angle insert; the compensation insert comprises a linkage plate connected with a piston rod of the compensation driving cylinder, compensation insert blocks are respectively arranged at two ends of the linkage plate, and the two compensation insert blocks are in sliding fit with two sides of the R-angle insert. In the structure, the two compensation inserting blocks are attached and slidably arranged on two sides of the R-angle insert, after the compensation driving cylinder is driven, the compensation inserting blocks can be better ensured to be accurately matched in a gap between the straight-edge insert and the R-angle insert so as to form a complete edge covering driving surface, the bulge generated on a base material after edge covering is avoided, and the appearance attractiveness of the product after edge covering is improved.

Still further, still be equipped with the electric cabinet in the frame, be equipped with on the electric cabinet and bordure the control button of mechanism, compensation mechanism and the equal electric connection of blank pressing mechanism. The actions of the edge covering mechanism, the compensation mechanism and the edge pressing mechanism can be realized through the electric cabinet, the automation degree of the whole edge covering device is improved, and the operation is more convenient.

Drawings

Fig. 1 is a schematic structural view of the sunroof hot hemming device of the automobile of the present invention.

Fig. 2 is a schematic view of the connection structure of the upper die of the present invention on the top plate of the frame.

Fig. 3 is a schematic view of the upper mold structure in the present invention.

Fig. 4 is a schematic view of the lower die structure in the present invention.

FIG. 5 is a partial view of the lower mold of the present invention.

Fig. 6 is a cross-sectional view showing the upper and lower dies of the present invention when they are engaged with each other.

Fig. 7 is an enlarged structural view at X in fig. 6. (before wrapping)

Fig. 8 is an enlarged structural view at X in fig. 6. (after wrapping)

Fig. 9 is an enlarged structural view at Y in fig. 5.

Fig. 10 is a partial structure diagram of an R corner insert and two adjacent straight-edge inserts in the invention. (after horizontal outward movement)

Fig. 11 is a partial structure diagram of an R corner insert and two adjacent straight-edge inserts in the present invention. (after horizontal outward movement, and compensation insert compensation movement to set position)

Wherein shown in the figure:

1-a rack, 2-a positioning part, 3-a straight edge insert, 4-an R corner insert, 5-a mounting plate, 6-a first driving cylinder, 7-a positioning pressing plate, 7.1-an avoiding through hole, 8-a connecting plate, 9-a second driving cylinder, 10-a heating block, 11-a containing cavity, 12-a pressing block, 13-a third driving cylinder, 14-a lifting plate, 15-a fourth driving cylinder, 16-a stand column, 17-a mounting seat, 18-a connecting rod, 19-a fifth driving cylinder, 20-a linear slide rail, 21-a sliding block, 22-a guide rod, 23-a guide sleeve, 24-a positioning column, 25-a first upper positioning column, 26-a second upper positioning column, 27-a compensation insert, 27.1-a linkage plate and 27.2-a compensation insert, 28-compensation driving cylinder, 29-gap, 30-fixing plate, 31-positioning lug, 32-positioning inserted rod and 33-electric cabinet.

Detailed Description

The invention is further described with reference to the following figures and detailed description.

In the description of the present invention, it should be noted that the terms "upper, lower", "upper", "lower", "middle", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. In addition, in the description of the present invention, the terms "first", "second", "third", "fourth" and "fifth" are used for convenience of description, and are not intended to be specific.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figure 1, the invention provides a hot edge covering device for a sunroof of an automobile, which comprises a rack 1, wherein the rack 1 is provided with a hot edge covering device

The middle part of the upper end surface of the lower die is convexly provided with a positioning part 2 for inserting and positioning a sunroof hole of an automobile ceiling;

the upper die is arranged above the lower die in a vertically slidable manner, a heating assembly is arranged on the upper die, and when the die is closed, the heating mechanism is used for heating a base material to be wrapped at the position of a skylight of the automobile ceiling;

the edge covering mechanism is connected to the lower die and comprises four straight edge inserts 3 and a driving mechanism, the four straight edge inserts 3 are distributed in a rectangular shape, an R corner insert 4 is arranged at a corner position between every two adjacent straight edge inserts 3, and the driving mechanism is used for driving each straight edge insert 3 and each R corner insert 4 to move horizontally and vertically so as to enable a base material at a position close to the skylight on the inner side of the automobile roof to be tightly attached to the peripheral edge of the skylight and turn over and cover the edge towards the outer side direction of the automobile roof; when the edge covering action is needed after the heating is finished, the driving mechanism drives each straight edge insert 3 and each R corner insert 4 to move outwards along the horizontal direction and then move downwards along the vertical direction, so that the base material at the position close to the skylight on the inner side of the automobile ceiling is tightly attached to the peripheral edge of the skylight and is turned over and covered towards the outer side of the automobile ceiling;

the compensation mechanism is connected to the edge covering mechanism and comprises compensation inserts 27 and a compensation driving cylinder 28 for driving the compensation inserts 27 to horizontally move, when the straight-edge inserts 3 and the R-angle inserts 4 horizontally move outwards, a gap 29 is formed between each two sides of each R-angle insert 3 and the adjacent straight-edge insert 4, as shown in fig. 10, the compensation inserts 27 are in sliding fit in the gap 29, in the structure, one end, close to the mounting through hole 2.1, of each R-angle insert 4 is integrally formed with a fixing plate 30, and the compensation driving cylinder 28 is connected to one end, far away from the R-angle insert 4, of each fixing plate 30; the compensation insert 27 comprises a linkage plate 27.1 connected with a piston rod of the compensation driving cylinder 28, two ends of the linkage plate 27.1 are respectively provided with a compensation insert 27.2, and the two compensation inserts 27.2 are in sliding fit with two sides of the R-angle insert 4; when the edge is covered, firstly, all the straight edge inserts 3 and the R corner inserts 4 horizontally move outwards to urge the base material to be turned outwards, and if all the inserts directly move downwards, bulges are generated at the positions corresponding to all the gaps 29 when the base material is attached to the edge downwards, so that the appearance is influenced; in order to solve the problem, before each insert moves downwards, the compensation driving cylinder 28 is operated to drive each compensation insert 27.2 to be in motion fit in a gap 29 between each R-angle insert 4 and the adjacent straight-edge insert 3, so that each straight-edge insert 3 and each R-angle insert 4 are surrounded along the circumferential direction to form a complete edge-covering insert assembly, as shown in fig. 11, all inserts are driven downwards at the moment, and the base material is slowly pushed to be bonded along the frame at the position, corresponding to the skylight, on the ceiling, so that the R-angle position of the edge-covering base material is smooth and round in the edge-covering process, and no bulge can occur;

and the edge pressing mechanism is connected to the upper die and used for pressing the base material from the turned edge to the position, close to the skylight, outside the automobile roof, so that the whole process of the skylight edge covering of the automobile roof is realized.

In the structure, in order to improve the automation degree of the whole edge covering device and make the operation more convenient, the electric cabinet is further arranged on the frame 1, the electric cabinet is electrically connected with the edge covering mechanism, the compensation mechanism and the edge pressing mechanism, and particularly, the electric cabinet is provided with a control button for controlling the actions of the mechanisms.

Specifically, as shown in fig. 2 and 3, the upper die comprises a mounting plate 5 and a first driving cylinder 6 for driving the mounting plate 5 to ascend and descend, and the first driving cylinder 6 is connected to a top plate of the frame 1; specifically, two first driving cylinders 6 are arranged on a top plate of the frame 1 at intervals along the length direction of the top plate, and piston rods of the two first driving cylinders 6 are connected with the upper end of the mounting plate 5; in order to ensure the stability of the up-and-down movement of the mounting plate 5 in the structure, four angular positions at the upper end of the mounting plate 5 are respectively provided with a guide slide bar, a top plate of the rack 1 is correspondingly provided with four guide sliding sleeves, and the upper ends of the guide slide bars are in one-to-one corresponding sliding fit in the guide sliding sleeves. In this structure, the circumference outer wall of mounting panel 5 all passes through corresponding linear slide rail sliding connection with four spinal branch daggers of frame 1 to improve the gliding position accuracy about mounting panel 5.

In addition, a positioning pressing plate 7 for pressing and limiting the automobile ceiling is arranged at the lower end of the mounting plate 5, and the lower end face of the positioning pressing plate 7 is matched with the upper end face of the automobile ceiling in shape, so that the pressing and limiting on the automobile ceiling are more stable; on the other hand, an avoiding through hole 7.1 is formed in the middle of the positioning pressing plate 7, a connecting plate 8 is arranged in the avoiding through hole 7.1 in a sliding mode, a second driving cylinder 9 used for driving the connecting plate 8 to move up and down is arranged on the mounting plate 5, and the heating assembly is detachably mounted at the lower end of the connecting plate 8. In the structure, when the automobile roof is positioned at the upper end of the lower die, the first driving cylinder 6 drives the mounting plate 5 to move downwards until the positioning pressing plate 7 is pressed and limited on the upper end face of the automobile roof, after the automobile roof is limited and stable, the second driving cylinder 9 drives the connecting plate 8 to move downwards until the heating component at the lower end of the connecting plate 8 moves to the position corresponding to the position of the substrate to be heated, the heating component works to heat the substrate to be covered with edges, and after the heating is completed, the covering mechanism starts to cover the edges.

In the above structure, in order to enable self-limiting when the mounting plate 5 descends and the connecting plate 8 descends to a set position, as shown in fig. 6, a plurality of lower positioning columns 24 are arranged on the bottom plate of the lower die, and the top ends of the lower positioning columns 24 are provided with positioning insertion holes 24.1; a first upper positioning column 25 is arranged on the lower end face of the mounting plate 5, a second upper positioning column 26 is arranged on the lower end face of the connecting plate 8, and positioning insertion columns corresponding to the positioning insertion holes 24.1 on the lower positioning columns 24 are arranged at the bottom ends of the first upper positioning column 25 and the second upper positioning column 26. Specifically, in this structure, six lower positioning columns 25 are arranged on the bottom plate of the lower die, two second upper positioning columns 26 are correspondingly arranged on the lower end face of the connecting plate 8, four first upper positioning columns 25 are arranged on the mounting plate 5, and the four first upper positioning columns 25 respectively penetrate through the connecting plate 8 and correspond to the lower positioning columns 24. In other embodiments, the number of the lower positioning columns 24 may also be four or eight, and the numbers of the first upper positioning columns 25 and the second upper positioning columns 26 may be the same or different, as long as the downward limit position of the mounting plate 5 or the connecting plate 8 can be stably limited, which is not described herein again.

In this embodiment, the heating assembly includes an annular heating block 10, the heating block 10 is disposed on the lower end surface of the connecting plate 5, and when the connecting plate 8 moves downward to a set position, the heating block 10 is located outside each insert, so that an accommodating cavity 11 for accommodating a substrate to be edge-wrapped is formed between the inner side wall of the heating block 10 and the outer side walls of each straight-edge insert 3 and the R-corner insert 4, as shown in fig. 7. Specifically, can set up corresponding heating element in heating block 1, can set up control assembly on mounting panel 5 for control heating element work, more specifically, can also bury corresponding stable sensor underground on heating block 10, temperature sensor and control assembly electric connection, thereby can be so that the heating of heating block 10 stabilizes control that can be accurate.

In the hot edge covering device, after the base material at the position of the automobile roof skylight is turned over from inside to outside to cover the edge, the covered base material can be more stable and firm to be bonded with the automobile roof main body, and a corresponding edge pressing structure is arranged on the upper die and is used for further extruding the outer edge of the covered base material to ensure firm bonding. Specifically, as shown in fig. 3, 7 and 8, the edge pressing mechanism comprises a plurality of pressing blocks 12 and a plurality of third driving cylinders 13, the pressing blocks 12 are circumferentially arranged at the upper end of the positioning pressing plate 7, and the third driving cylinders 13 are used for respectively driving the pressing blocks 12 to horizontally move towards the center of the avoiding through hole 7.1, so that the base material after edge covering is further compressed, and the firmness of connection between the base material after edge covering and the ceiling main body is improved. As shown in fig. 2, a plurality of positioning protrusions 31 are circumferentially arranged on the positioning pressing plate 7, and when the automobile ceiling is placed on the upper end face of the lower mold, the positioning protrusions 31 are used for compressing and limiting the frame structure on the ceiling main body, so as to ensure the stability of the ceiling in pressing. More specifically, still wear to be equipped with a plurality of location inserted bars 32 on location clamp plate 7, the up end that corresponds at the lower mould is equipped with the spliced eye with each location inserted bar 32 sliding fit, presets the hole of dodging that supplies location inserted bar 32 to pass on the ceiling in this structure.

As shown in fig. 4 and 5, the driving mechanism in this embodiment includes a lifting plate 14 and a fourth driving cylinder 15 for driving the lifting plate 14 to move up and down, the circumferential outer edges of the lifting plate 14 are slidably connected with four columns 16 of the lower mold through corresponding linear guide rails, respectively, and the fourth driving cylinder 15 is connected to the bottom plate of the lower mold; on the other hand, a plurality of mounting seats 17 distributed along the circumferential direction are arranged on the lifting plate 14, connecting rods 18 extending along the vertical direction are arranged on the mounting seats 17, the upper end of each connecting rod 18 is respectively connected with the corresponding straight edge insert 3 or the corresponding R corner insert 4, a mounting through hole 2.1 corresponding to the skylight of the automobile ceiling is arranged on the positioning part 2, and the four straight edge inserts 3 and the four R corner inserts 4 are arranged along the edge of the mounting through hole 2.1; the mounting seat 17 is provided with a driving component for driving the connecting rod 18 to horizontally move along the radial direction of the mounting through hole 2.1. In the structure, ten mounting seats 17 are arranged at the upper end of the lifting plate 14 along the circumferential direction, specifically, two mounting seats 17 are respectively arranged on two long sides of the lifting plate 14, and correspondingly, each two connecting rods 18 of the mounting seats 17 positioned on the same side of the lifting plate 14 are used for connecting one straight edge insert 3; a mounting seat 17 is respectively arranged at the middle position of two short sides of the lifting plate 14, and a connecting rod 18 on the mounting seat 17 is used for connecting the other two straight-side inserts 3; at each of the four angular positions of the lifting plate 14, a mounting seat 17 is provided, and a link 18 of the mounting seat 17 is used for connecting the four R-corner panels 4. In addition, the driving assembly in this structure includes a fifth driving cylinder 19, the fifth driving cylinder 19 is connected to the mounting base 17, a linear slide rail 20 is further disposed on the mounting base 17, a slide block 21 is slidably fitted on the linear slide rail 20, the lower end of the connecting rod 18 is connected to the slide block 21, and a piston rod of the fifth driving cylinder 19 is connected to a side wall of the connecting rod 18. In the structure, the up-and-down movement of each insert is realized through the up-and-down movement of the lifting plate 14, and each corresponding connecting rod 18 is driven by each fifth driving cylinder 19 to perform horizontal movement so as to realize the movement of each insert along the horizontal direction; in the structure, the process of wrapping the base material at the position of the skylight of the automobile roof moves from inside to outside along the horizontal direction to turn over the base material, and then the turned-over base material is attached to the frame at the position of the skylight of the automobile roof from top to bottom, so that the whole process of wrapping the base material is completed, as shown in fig. 8. After the edge covering is finished, the lifting plate 4 moves upwards in a resetting mode, and then the edge pressing mechanism starts to act.

In the structure, as shown in fig. 9, the guide rod 22 is arranged on the side wall of the lower end of the connecting rod 18, the guide sleeve 23 is arranged on the mounting seat 17, and one end, far away from the connecting rod 18, of the guide rod 22 is in sliding fit in the guide sleeve 23, so that the connecting rod 18 has a better guiding effect during horizontal movement, moves more stably and is not easy to incline.

The frame 1 is also provided with an electric cabinet 33, and the electric cabinet 33 is provided with a control button electrically connected with the edge covering mechanism, the compensation mechanism and the edge pressing mechanism. The actions of the edge covering mechanism, the compensation mechanism and the edge pressing mechanism can be realized by operating corresponding control buttons, the automation degree of the whole edge covering device is improved, and the operation is more convenient.

The foregoing has described preferred embodiments of the present invention and is not to be construed as limiting the claims. The present invention is not limited to the above embodiments, and the specific structure thereof is allowed to vary, and various changes made within the scope of the claims of the present invention are within the scope of the present invention.