CN218227832U - Edge folding machine - Google Patents

Abstract

The utility model relates to the field of mechanical equipment, concretely relates to flanging machine. The flanging machine comprises a conveying device used for conveying a workpiece; the edge folding devices are oppositely arranged at two sides of the conveying device in the width direction and bend the workpiece inwards along the two sides of the width direction; and the adhesive tape attaching device is arranged above the conveying device in the height direction, receives the workpiece with the side edge folded by the edge folding device, and attaches the folded side edge to the upper surface of the workpiece by using an adhesive tape. The edge folding device and the adhesive tape attaching device are sequentially arranged along the length direction of the conveying device. The utility model provides a flanging machine can guarantee comparatively stable hem quality in comparatively efficient hem operation simultaneously.

Description

Edge folding machine

Technical Field

The utility model relates to the field of mechanical equipment, concretely relates to flanging machine.

Background

At present market in the manufacturing process to vacuum insulation material, after carrying out the evacuation and handling the vacuum opening that leaves over through heat-seal technology to vacuum insulation material, can form the side in the edge of product both sides, and the side can lead to the heat transfer inhomogeneous of product in the use of product, and then influences the product result of use. Therefore, in order to improve the heat blocking effect of the vacuum insulation material, it is generally necessary to bend and fix the side edges of the product.

In the prior art, vacuum heat-insulating materials are various in types, and manual edge folding is still a common processing mode. The manual operation has the defects of poor precision and low efficiency, the folding flatness of the processed product is not up to standard, and the defects of folds, bubbles and the like are easy to exist.

In the existing automatic edge folding equipment, after the edge of the vacuum heat-insulating material is folded, the edge and the surface of the vacuum heat-insulating material are generally adhered by using adhesive, however, most of the adhesive has short use time and is easy to be adhered and failed in a high-temperature environment.

Therefore, how to provide an automatic edge folding device capable of replacing the adhesive to bond the side edges becomes a problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

To the relatively poor problem of bonding effect of hem equipment viscose to the curb, the utility model provides a flanging machine mainly includes: a conveying device for conveying the workpiece; the edge folding devices are oppositely arranged at two ends of the conveying device in the width direction and are used for inwards bending two side edges of the workpiece in the width direction; the adhesive tape attaching device is arranged above the conveying device in the height direction, receives the workpiece with the side edge folded by the edge folding device, and attaches the folded side edge to the upper surface of the workpiece by using an adhesive tape; the edge folding device and the adhesive tape attaching device are sequentially arranged along the length direction of the conveying device.

According to the technical scheme, the conveying device is arranged, so that the conveying speed of the workpiece in the edge folding technological process can be improved, and the conveying time of the workpiece is saved. The edge folding device is matched with the conveying device, so that the workpiece is quickly conveyed to the edge folding device, the edge folding device and the adhesive tape attaching device are sequentially arranged, the adhesive tape attaching device can be used for attaching the adhesive tape in time under the condition that the workpiece side edge is bent, the edge folding resilience is avoided, and the edge folding quality is guaranteed. The conveying device, the edge folding device and the adhesive tape attaching device are mutually matched, so that the automation degree of edge folding operation is improved.

Preferably, the hemming device includes: the guide groove and the blank pressing roller are sequentially arranged along the length direction of the conveying device, the side edge is limited and bent to an angle close to or attached to the upper surface of the workpiece by the guide groove, and the blank pressing roller rolls the bent side edge of the guide groove.

According to the technical scheme, the guide grooves respectively correspond to the two side edges of the workpiece, when the guide grooves are in contact with the corresponding side edges, the contact parts of the side edges and the guide grooves are limited by the shapes of the guide grooves, and are close to or attached to the upper surface of the workpiece in a bending mode, and the guide grooves and the conveying device are basically static relatively, so that the effect of continuously bending the folded edge of the workpiece along with the conveying of the conveying device is realized. The wheel surface of the edge pressing roller is in surface contact with the bent side edge, and the bent and tilted side edge is rolled through continuous rotation of the edge pressing roller, so that machining errors of the tilted side edge in subsequent processes are avoided.

Preferably, the guide groove has a guide surface receiving the side edge, the guide surface being formed as an arc surface with a gradually changing bending angle. The flanging machine further comprises an elastic assembly, the elastic assembly is arranged in the guide groove, and an elastic allowance space in the height direction and/or the width direction is provided for the guide groove.

According to the technical scheme, the guide surfaces of the receiving sides of the guide grooves are gradually gathered from the initial position perpendicular to the upper surface of the workpiece to the position where the guide surfaces are parallel to the upper surface of the workpiece along the length direction of the conveying device. This mode of setting up makes the side at the in-process of buckling, and the side changes along with the cambered surface of guiding surface and the angle of buckling grow gradually, avoids too quick direct acutely to buckle the action and makes the side buckle the back defect such as fold, bulge appear. The elastic component is connected with the guide groove, when a workpiece passes through the guide groove, the guide groove can be displaced to a certain extent in the height direction and/or the width direction, and the guide groove is restored after the workpiece passes through.

Preferably, the edge rollers are Mecanum wheels.

According to above-mentioned technical scheme, mecanum wheel is the blank pressing gyro wheel, not only can improve the continuation that the side was buckled, and the frictional force that produces when can also rolling to the hem through mecanum wheel is at width direction's side traction force for the dislocation that appears to hem preorder technology restores, or makes the buckling of hem carry out the tensioning, effectively improves the effect that the side was buckled.

Preferably, the conveying device comprises a feeding end conveying belt and a discharging end conveying belt which are sequentially arranged along the length direction of the conveying device, and the edge folding device and the adhesive tape attaching device are arranged on the discharging end conveying belt.

According to the technical scheme, when the workpiece is conveyed for the first time, the workpiece is conveyed to the discharge end conveying belt from the feeding end conveying belt, the feeding end conveying belt stops conveying continuously, feeding operation of the workpiece fed for the second time is started, and after the feeding operation is finished, the feeding end conveying belt accelerates to the speed same as the conveying speed of the discharge end conveying belt and circulates in sequence. The discharge end conveyor belt always keeps constant-speed conveying in the whole conveying circulation of the feeding end conveyor belt. Carry out the material loading under the material feeding end conveyer belt stall state, can improve the efficiency of material loading, improve the convenience of material loading.

Preferably, the conveyor further comprises a side conveyor belt provided to the conveyor, the side conveyor belt further comprising: the first side edge conveyor belt is arranged on two sides of the feeding end conveyor belt in the width direction; the second side edge conveyor belt is arranged on two sides of the discharge end conveyor belt in the width direction; the first side edge conveyor belt and the second side edge conveyor belt are arranged along the length direction, one end, close to the first side edge conveyor belt, of the second side edge conveyor belt is tightly attached to the first side edge conveyor belt, and the other end of the second side edge conveyor belt is tightly attached to the guide groove.

According to the scheme, the first side edge conveyor belt and the second side edge conveyor belt can follow the workpiece at a certain speed in the conveying process of the workpiece, the first side edge conveyor belt and the feeding end conveyor belt keep synchronous stop and synchronous movement, the second side edge conveyor belt and the discharging end conveyor belt keep synchronous movement, friction force between the surface of the workpiece contacted with the first side edge conveyor belt and the surface of the workpiece contacted with the second side edge conveyor belt is reduced, and the positioning precision of the workpiece at the feeding end conveyor belt and the discharging end conveyor belt before the edge folding operation is carried out is guaranteed.

Preferably, the conveying device further comprises a top conveying belt, the top conveying belt is arranged above the discharging end conveying belt in the height direction, and one side, close to the workpiece, of the top conveying belt is tightly attached to the upper surface of the workpiece.

According to the scheme, when the workpiece is conveyed to the top conveyor belt, the top conveyor belt is tightly attached to the upper surface of the workpiece, and when the workpiece is tilted to a certain degree relative to the discharge end conveyor belt, the workpiece is subjected to downward force applied by the top conveyor belt in the height direction, so that the tilting of the workpiece is repaired.

Preferably, the first side conveyor further comprises: the first fixed side conveyor belt is arranged on one side of the feeding end conveyor belt in the width direction; the first movable side edge conveyor belt is arranged on the other side of the feeding end conveyor belt in the width direction relative to the first fixed side edge conveyor belt, can move in the width direction relative to the first fixed side edge conveyor belt and moves to a mode of limiting the distance in the width direction to be equal to the width of a workpiece, so that the side edge is erected when the workpiece is placed in; the second side conveyor further comprises: the second fixed side edge conveyor belt is arranged on one side of the discharge end conveyor belt in the width direction; the second movable side edge conveyor belt is arranged on the other side of the discharge end conveyor belt in the width direction relative to the second fixed side edge conveyor belt, can move in the width direction relative to the second fixed side edge conveyor belt and moves to a mode of limiting the distance in the width direction to be equal to the width of the workpiece, so that the side edges are erected when the workpiece is placed in; the flanging machine also comprises a camera sensor for measuring the vertical height of the side edge; the adhesive tape attaching device is provided with a driving mechanism in communication connection with the camera sensor, and the driving mechanism drives the adhesive tape attaching device to move along the width direction according to the vertical folding height of the side edge.

According to the scheme, the first movable side conveyor belt and the second movable side conveyor belt can move in a small distance in the width direction, so that the side conveyor belts can position workpieces with different sizes and widths in a certain size range, and the precision of clamping and positioning the workpieces in the width direction can be guaranteed. And the first movable side conveyor belt and the second movable side conveyor belt clamp the workpiece, so that the two side edges of the workpiece can be erected upwards along the height direction, the pre-folding process of the workpiece is completed, and the bending efficiency is improved. When the camera sensor can sense that a workpiece passes through, the erected side edge shields the shadow area, and then the height of the hem at the position is calculated by calculating the ratio of the shadow area to the fixed monitoring area and combining the height of the fixed monitoring area. The camera inductor is connected with the attached device communication of sticky tape, sends the height information of hem to the attached device of sticky tape, and the attached device of sticky tape passes through the attached concrete position of drive arrangement pre-adjustment sticky tape, is favorable to guaranteeing the accuracy of the attached position of sticky tape, avoids the side after buckling the condition that the hourglass was pasted to appear.

Preferably, the tape attaching device includes a tape fixing tray and a cutting unit; the adhesive tape fixing disc is suspended above the conveying device, and the cutting unit is arranged close to the side edge.

According to the technical scheme, the adhesive tape used for attaching the side edge is wound on the adhesive tape fixing disc, one end of the adhesive tape is closed to the upper surface of the workpiece through the guide structures such as the guide wheels, the adhesive tape is bonded with the bent side edge and attached by means of power transmitted by the workpiece. When the cutting unit is attached to the tail of the workpiece, the cutting unit cuts off the workpiece, the cutting unit is arranged close to the side edge position, the cutting action range can be reduced to the minimum, the cutting speed is accelerated, and the cutting precision is guaranteed.

Preferably, the tape attaching device further comprises a compaction roller and a reinforcement roller, and the compaction roller and the reinforcement roller are respectively arranged at two ends of the cutting unit in the length direction.

According to the technical scheme, after the adhesive tape is attached to the side edge, the adhesive tape can be tightly attached to the side edge of the workpiece through the compaction roller, and the adhesive tape is prevented from being separated from the side edge of the workpiece and being bonded with the side edge of the workpiece. The reinforcing roller rolls and reinforces the bonding part of the cut adhesive tape and the side edge again, which is beneficial to ensuring the attaching quality of the adhesive tape.

Drawings

Fig. 1 is a schematic side view of a flanging machine according to an embodiment of the present invention.

Fig. 2 is a schematic view illustrating the bending of the guide slot to the side edge according to the embodiment of the present invention.

Fig. 3 is a schematic perspective view of the guide groove and the elastic component according to the embodiment of the present invention.

Fig. 4 is a diagram illustrating a force application analysis of a mecanum wheel according to an embodiment of the present invention.

Fig. 5 is a diagram illustrating a change in the state of the side of the workpiece according to the embodiment of the present invention.

Fig. 6 is a schematic top view of a conveyor according to an embodiment of the present invention.

Fig. 7 is a schematic diagram of a front view module of a conveying apparatus according to an embodiment of the present invention.

Fig. 8 is a schematic diagram of a side view module of the camera sensor according to an embodiment of the present invention.

Fig. 9 is a schematic view of the camera sensor measurement according to the embodiment of the present invention.

Reference numerals:

10, workpiece; 11 sides;

101 an upper surface of the workpiece;

20 a conveyor; 21 a feeding end conveyor belt; 22 a discharge end conveyor belt; 23 side conveyor belts; 24 a top conveyor; 25 a transport plane;

231 a first side conveyor; 232 a second side conveyor;

2311 a first fixed-side conveyor belt; 2312 a first moving-side conveyor belt; 2321 a second fixed-side conveyor belt; 2322 a second moving-side conveyor;

31 a guide groove; 32 edge pressing rollers; 33 an elastic member;

311 a guide surface; 331 an elastic member; 332 connecting plates; 333 universal connectors;

3111 an inlet section; 3112 an outlet section;

40 tape attaching means; 41, fixing a tape fixing disc; 42 a cutting unit; 43 compacting the roller; 44 reinforcing the rollers; 45 a drive mechanism;

50 camera sensors;

a length direction; b in the width direction; c height direction;

e, elasticity; x lateral traction force; y positive traction force; z friction force;

s, fixing a monitoring area; s1, the area of a shadow area; sh fixes the height of the monitoring zone; and S1 h, folding the edge.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any creative effort belong to the protection scope of the present application.

The utility model provides a flanging machine, figure 1 is the utility model discloses embodiment's flanging machine look sideways at module schematic diagram, as shown in figure 1, including conveyer 20 and with the length direction a of conveyer 20 hem device and the attached device 40 of sticky tape of arranging in proper order. In the present embodiment, the conveying device 20 is a pipelined conveyor belt mechanism for conveying the workpiece 10 from the start position M to the preset position N. The hemming device is a guide groove 31, and the guide groove 31 is oppositely disposed at both ends of the width direction b (shown in fig. 7) of the conveyor 20, so that both side edges 11 (shown in fig. 2) of the workpiece 10 in the width direction b can be bent inward. The bent workpiece 10 is then conveyed to the tape application device 40. The tape application device 40 can apply the bent side edge 11 to the workpiece upper surface 101 with a tape so that the side edge 11 is fixed to the workpiece upper surface 101.

In other embodiments of the present invention, the conveying device 20 may also be a loading slide table driven by an air cylinder, or a screw mechanism driven by a motor, which is not limited herein.

In the present embodiment, the workpiece 10 is preferentially conveyed to the guide groove 31 in the longitudinal direction a and then conveyed to the tape application device 40. When the workpiece 10 is placed on the conveying device 20, the conveying device 20 can directly convey the workpiece 10 to the guide groove 31 along the length direction a for operation, after the workpiece 10 is subjected to edge folding operation by the guide groove 31, the folded workpiece 10 can be quickly conveyed to the tape attaching device 40 for tape attaching operation, and the fixing of the side edge 11 relative to the upper surface 101 of the workpiece is completed. The cooperation of conveying, hem and sticky tape attached technology does not need manual work, has improved the degree of automation of hem technology, has avoided artifical biography material, artifical hem and the artifical error that probably takes place to side 11 carries out the attached in-process.

Specifically, one end of the guide groove 31 in the length direction a is provided with a blank pressing roller 32, and the guide groove 31 can limit and bend the side edge 11 to an angle adjacent to or attached to the workpiece upper surface 101. A blankholder roller 32 may be used to roll the folded side 11.

In the present embodiment, the side edge 11 is preferentially contacted with the guide groove 31 in the length direction a and then is rolled by the edge-pressing roller 32, and the guide groove 31 and the edge-pressing roller 32 may be arranged at a short distance so that the side edge 11 bent by the guide groove 31 can be immediately rolled by the edge-pressing roller 32. When the side edge 11 is opened due to the elasticity of the side edge 11, the slightly raised side edge 11 after being bent can be immediately rolled by the edge pressing roller 32 arranged at a short distance, so that the bending effect of the side edge 11 is further enhanced, and the time for attaching the side edge 11 to the upper surface 101 of the workpiece is prolonged. During the bending process of the side edge 11, the guide groove 31 and the conveying device 20 are substantially stationary, and as the conveying device 20 conveys the workpiece 10, the side edge 11 is continuously bent along the conveying process of the conveying device 20, thereby improving the efficiency of bending the side edge 11.

Further, the conveyor 20 includes a feeding end conveyor 21 and a discharging end conveyor 22 arranged in sequence along the length direction a, and the guide groove 31 and the tape attaching device 40 are mounted on the conveyor 20, wherein the guide groove 31 and the tape attaching device 40 are arranged on the discharging end conveyor 22. The main body of the conveyor 20 is divided into a feeding end conveyor 21 and a discharging end conveyor 22, and the conveying directions of the two conveyors are the same when the work 10 is normally conveyed. The two conveying belts are respectively provided with an independent driving mechanism, and can be independently started and stopped. In the actual use process, firstly, the feeding end conveyor belt 21 conveys all the workpieces 10 on the feeding end conveyor belt 21 to the discharging end conveyor belt 22, after the conveying is completed, the feeding end conveyor belt 21 stops continuing to operate, the feeding operation of the workpieces 10 subjected to secondary feeding is carried out, after the feeding is completed, the feeding end conveyor belt 21 accelerates to the same conveying speed as that of the discharging end conveyor belt 22, and after all the workpieces 10 subjected to secondary feeding are conveyed to the discharging end conveyor belt 22, the feeding operation is carried out again, and the processes are circulated in sequence. The discharge end conveyor 22 is kept in constant transport throughout the entire circulation of the feed end conveyor 21. When whole in-process was in the material loading of material feeding end conveyer belt 21, kept material feeding end conveyer belt 21's power off state, can improve the convenience of material loading for material loading speed reduces the material loading risk.

Further, as shown in fig. 2 and 3, the guide groove 31 has a guide surface 311, and the guide surface 311 is a curved surface with a gradually changing bending angle. The side edge 11 may engage when the entrance section 3111 comes into contact with the guide surface 311, the entrance section 3111 comes into contact with the side edge 11 in an upright position, and the entrance section 3111 is substantially perpendicular to the conveying plane 25 (shown in fig. 1) of the conveyor 20. Exit portion 3112 is substantially parallel to conveying plane 25, the arcuate surface of guide surface 311 extends from entrance portion 3111 in a length direction a toward exit portion 3112, and the angle between entrance portion 3111 and conveying plane 25 gradually decreases until exit portion 3112 is substantially parallel to conveying plane 25. When the side edge 11 is initially brought into contact with the guide surface 311, the side edge 11 is brought into contact with and fitted to the entrance portion 3111, the side edge 11 is continuously conveyed in the longitudinal direction a, and the portion of the side edge 11 fitted to the entrance portion 3111 is gradually bent while the angle between the guide surface 311 and the conveying plane 25 is gradually reduced, and is bent to the upper surface 101 of the workpiece at least while passing through the exit portion 3112. The side edge 11 is guided to bend by the cambered surface with the gradually reduced angle between the cambered surface and the conveying plane 25, so that the bending angle of the side edge 11 is gradually increased under the pressure of the guide surface 311, and the defects of folds, bulges and the like after the side edge 11 is bent directly are avoided.

As shown in fig. 3, in the present embodiment, an elastic member 33 is provided above the guide groove 31 in the height direction c to control the springback of the guide groove 31 in the height direction c. An elastic assembly 33 is provided on the side of the guide groove 31 in the width direction b away from the conveyor 20 for controlling the resilience of the guide groove 31 in the width direction b.

In detail, the elastic member 33 includes the elastic members 331, in the present embodiment, two elastic members 331 form a set of elastic members 33, and the number of the elastic members 331 is not limited in the present embodiment. Each elastic member 331 is in contact with a surface of the guide groove 31 and is disposed substantially vertically. The two sets of elastic members 33 provided in the respective guide grooves 31 provide the guide grooves 31 with an elastic margin space in an obliquely upward direction, and the guide grooves 31 can be displaced in a certain space and return to their original shape after the passage of the workpiece 10. Where the explanation specifically regarding the oblique upward direction is: when the workpiece 10 is conveyed to contact with the guide groove 31, if the dimension of the workpiece 10 deviates from the specification dimension, the protruding portion of the workpiece 10 relative to the guide groove 31 generates an elastic force e (shown in fig. 2) on the guide groove 31 to separate from the workpiece 10, and the guide groove 31 can realize a certain dimension displacement by having an elastic margin space in an obliquely upward direction when receiving a force. This displacement can be decomposed into: a displacement in the height direction c, and a displacement in the width direction b, in which the displacement directions of the guide grooves 31 on both sides in the width direction b are opposite. The guide groove 31 may be displaced in the height direction c or the width direction b alone. This is because in the actual processing condition, the condition that there is certain error in the size of the same model of work piece 10 is more common, and the size application scope that guide way 31 can effectual expansion guide way 31 is set up certain elasticity allowance of oblique ascending direction for work piece 10, and when the width of work piece 10, thickness compare in specification size oversize, guide way 31 still can rely on to go on effectively buckling to the side 11 to the elasticity allowance of oblique ascending direction assurance.

As shown in fig. 4 and 5, in the present embodiment, the edge rollers 32 are mecanum wheels. Compared with the rolling action of a common roller on the side edge 11, the Mecanum wheel can provide lateral traction force x while providing conventional rolling. Specifically, the friction force z generated when the mecanum wheel rolls the side edge 11 can be decomposed into: the positive traction force y in the length direction a and the lateral traction force x in the width direction b, wherein the lateral traction force x recovers dislocation of the pre-edging process of the side edge 11 or tensions the bending of the side edge 11, thereby effectively improving the bending effect of the side edge 11.

In the present embodiment, as shown in fig. 6 and 7, the hemming machine further includes side conveyor belts 23, the side conveyor belts 23 are provided on both sides of the conveyor 20, and are capable of positioning the workpiece 10 during conveyance, and the side conveyor belts 23 themselves belong to a conveying structure having a certain conveying speed, and are capable of reducing friction with the workpiece 10 by adjusting their own conveying speed while positioning the workpiece 10 in position.

Specifically, the side conveyor belt 23 includes a first side conveyor belt 231 disposed on both sides of the feeding end conveyor belt 21 in the width direction, and a second side conveyor belt 232 disposed on both sides of the discharging end conveyor belt 22 in the width direction, wherein the first side conveyor belt 231 and the second side conveyor belt 232 are disposed along the length direction, one end of the second side conveyor belt 232 close to the first side conveyor belt 231 is tightly attached to the first side conveyor belt 231, and the other end of the second side conveyor belt 232 is tightly attached to the guide groove 31. And the first side conveyor belt 231 and the feeding end conveyor belt 21 keep synchronous stop and synchronous movement, and the second side conveyor belt 232 and the discharging end conveyor belt 22 keep synchronous movement. The two ends of the first side edge conveyor belt 231 and the second side edge conveyor belt 232 are tightly attached to each other, so that the positioning accuracy can be kept in the process from the feeding end conveyor belt 21 to the discharging end conveyor belt 22 before the edge folding operation of the workpiece 10. And the first side conveyor 231 and the second side conveyor 232 are separately arranged, so that the assembly difficulty and the alignment difficulty with the subsequent guide groove 31 can be reduced. When the positioning is corrected, the second side conveyer 232 is positioned with respect to the guide groove 31, and the first side conveyer 231 is positioned with respect to the second side conveyer 232.

Specifically, the first fixed-side conveyor 2311 disposed on one side in the width direction of the feeding-end conveyor 21 and the first movable-side conveyor 2312 disposed on the other side in the width direction of the feeding-end conveyor 21 are further included in the first side conveyor 231. The second side edge conveyor belt 232 further includes a second fixed side edge conveyor belt 2321 disposed on one side of the discharge end conveyor belt 22 in the width direction, and a second movable side edge conveyor belt 2322 disposed on the other side of the discharge end conveyor belt 22 in the width direction. In general, the first fixed-side belt 2311 and the first movable-side belt 2312 are disposed on opposite sides of the feeding-end belt 21 in the width direction. The second fixed-side conveyor 2321 and the second movable-side conveyor 2322 are disposed on both sides of the discharge-end conveyor 22 in the width direction. And the first movable-side conveyer belt 2312 can move in the width direction with respect to the first fixed-side conveyer belt 2311, the second movable-side conveyer belt 2322 can move with respect to the second fixed-side conveyer belt 2321,

when the distance between the first fixed side conveyor 2311 and the first movable side conveyor 2312 in the width direction is equal to the width of the workpiece 10, and the distance between the second fixed side conveyor 2321 and the second movable side conveyor 2322 is equal to the width of the workpiece 10, the two sides 11 of the workpiece 10 are pressed and lifted by the side conveyors 23, the lifted sides 11 are lifted upwards and enter the guide grooves 31 to be bent, so that the pretreatment of the bending operation of the sides 11 is completed, and the difficulty of subsequent bending is reduced. The first movable side edge conveyor belt 2312 and the second movable side edge conveyor belt 2322 can move in a small distance in the width direction, so that the side edge conveyor belt 23 can position workpieces 10 with different sizes and widths in a certain size range, and the accuracy of clamping and positioning the workpieces 10 in the width direction can be ensured. Further, a top conveyor 24 is provided above the conveyor 20 in the height direction c, the conveying plane of the top conveyor 24 being parallel to the conveying plane 25, the top conveyor 24 serving to level the lift occurring during the conveyance of the work 10.

Specifically, the top conveyor 24 is disposed above the discharge end conveyor 22 in the height direction c and is tightly attached to the upper surface 101 of the workpiece, so as to ensure that the workpiece 10 is tightly attached to the conveyor 20 during the conveying process. During the conveying process, the workpiece 10 passes below the top conveyor 24, and the top conveyor 24 is closely attached to the upper surface 101 of the workpiece by designing the installation height of the top conveyor 24. When the workpiece 10 is placed or during the conveying process, any one side of the workpiece is tilted due to an external force factor, and a downward force in the height direction c is applied to the workpiece 10 by the top conveyor 24, so that the repair of the workpiece 10 is completed.

As shown in fig. 8 and 9, the hemming machine is provided with two camera sensors 50, and the two camera sensors 50 may be installed to face each other on both sides of the feed end conveyor 21, and when conveying the workpiece 10, since the space of the conveyor 20 in the width direction b is too narrow, it is difficult to directly measure the bending height of the workpiece 10 in a state where the side edge 11 is erected. Moreover, the heights of the side edges 11 erected along the length direction a are not uniform, and it is difficult to perform uniform attachment work on the side edges 11 of different heights. In the present embodiment, the camera sensor 50 is set to sense the fixed monitoring area S, is in communication with the tape application device 40, and transmits monitoring information to the tape application device 40 (shown in fig. 1) in real time. When the workpiece 10 passes through the camera sensor 50, the camera sensor 50 can sense the shadow area S1 blocked by the erected side 11, and then calculate the percentage of the shadow area S1 in the monitoring area S, and combine the fixed monitoring area height Sh of the fixed monitoring area S to calculate the average height value of the shadow area S1, when the fixed monitoring area S is sufficiently small, the average height value of the shadow area S1 can be approximate to the hem height S1 h of the side 11. The camera sensor 50 is in communication connection with the tape attaching device 40, and after the tape attaching device 40 receives the monitoring information, the tape attaching device 40 pre-adjusts the specific position of the tape attachment through the driving device 45 (shown in fig. 1), so that the accuracy of the tape attaching position is ensured, and the phenomenon of missing attachment of the bent side edge 11 is avoided.

The specific calculation formula of the flanging height S1 h of the shadow area S1 is as follows:

hem height S1 h = (shaded area S1/fixed monitored area S) × fixed monitored area height Sh

The tape application device 40 provided in the present embodiment can fix the side edge 11 applied to the upper surface 101 of the workpiece. Specifically, the tape attaching device 40 includes a tape fixing tray 41 disposed above the conveyor 20 in the height direction c, and the tape fixing tray 41 is wound with a tape for adhering the side edge 11 to the upper surface 101 of the workpiece. The cutting unit 42 is in close contact with the side edge 11 attached to the upper surface 101 of the workpiece, and cuts the adhesive tape.

Further, the adhesive tape wound on the tape fixing plate 41 can be guided by a guide mechanism such as a guide wheel to be close to the surface of the side edge 11, and when the workpiece 10 reaches below the tape fixing plate 41, the adhesive tape contacts the side edge 11 and the upper surface 101 of the workpiece, and bonds the side edge 11 and the upper surface 101 of the workpiece. The workpiece 10 continues to be conveyed, the tape is pulled by the adhesive force with the workpiece 10 to be conveyed, and the subsequent portion of the side edge 11 is adhered.

Further, a compacting roller 43 and a reinforcing roller 44 are sequentially installed on the conveyor 20 in the length direction a, and the compacting roller 43 and the reinforcing roller 44 are respectively disposed at both ends of the cutting unit 42 in the length direction a. The compacting roller 43 helps to better adhere the tape to the side edge 11 and to the upper surface 101 of the workpiece and to maintain its abutment during the subsequent adhering of the side edge 11. The reinforcing roller 44 can roll the fixed adhesive tape to discharge bubbles contained during bonding, thereby ensuring the bonding quality, and the reinforcing roller 44 is arranged after the process of the cutting unit 42 to roll the cut adhesive tape, so that the cut part of the adhesive tape is not tilted.

Those of skill in the art will appreciate that the specific features of the various embodiments may be adaptively separated or combined. This kind of split or the combination to specific technical feature can not lead to technical scheme skew the utility model discloses a principle, consequently, technical scheme after split or the combination will all fall into the utility model discloses an in the protection scope. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. A hemming machine, comprising:

a conveying device for conveying the workpiece;

the edge folding devices are oppositely arranged at two ends of the conveying device in the width direction and bend the workpiece inwards along two side edges of the width direction;

the adhesive tape attaching device is arranged above the conveying device in the height direction, receives the workpiece with the side edge folded by the edge folding device, and attaches the folded side edge to the upper surface of the workpiece by using an adhesive tape;

the edge folding device and the adhesive tape attaching device are sequentially arranged along the length direction of the conveying device.

2. A hemming machine according to claim 1 wherein the hemming device includes: the edge pressing device comprises a guide groove and an edge pressing roller, wherein the guide groove and the edge pressing roller are sequentially arranged along the length direction, the guide groove limits and bends the side edge to an angle adjacent to or attached to the upper surface of the workpiece, and the edge pressing roller rolls the side edge bent by the guide groove.

3. The hemming machine of claim 2 wherein the guide slot has a guide surface receiving the side edge, the guide surface being formed as an arc surface with a gradually changing bend angle;

the flanging machine further comprises an elastic assembly, wherein the elastic assembly is arranged in the guide groove and provides elastic allowance space in the height direction and/or the width direction for the guide groove.

4. The hemming machine of claim 2 wherein the hemming roller is a mecanum wheel.

5. A machine as claimed in any one of claims 2 to 4, wherein said conveyor comprises a feed end conveyor and a discharge end conveyor arranged in series along said length, said hemming device and said tape application device being arranged on said discharge end conveyor.

6. The hemming machine of claim 5 wherein the conveyor further includes a side conveyor belt disposed on the conveyor, the side conveyor belt further including:

the first side edge conveyor belt is arranged on two sides of the feeding end conveyor belt in the width direction;

the second side edge conveyor belt is arranged on two sides of the discharge end conveyor belt in the width direction;

the first side conveyer belt with second side conveyer belt sets up along length direction, second side conveyer belt is close to the one end of first side conveyer belt with the setting is hugged closely to first side conveyer belt, the other end of second side conveyer belt with the setting is hugged closely to the guide way.

7. The hemming machine of claim 6 wherein the conveyor further includes a top conveyor disposed above the discharge end conveyor in the height direction, the top conveyor abutting an upper surface of the workpiece adjacent a side of the workpiece.

8. The hemming machine of claim 6 wherein the first side conveyor further includes:

the first fixed side conveyor belt is arranged on one side of the feeding end conveyor belt in the width direction;

a first movable side edge conveyor belt which is arranged at the other side of the feeding end conveyor belt in the width direction relative to the first fixed side edge conveyor belt, can move relative to the first fixed side edge conveyor belt in the width direction and moves to a mode of limiting the width direction spacing to be equal to the width of the workpiece, so that the side edge is erected when the workpiece is placed in;

the second side conveyor belt further comprises:

the second fixed side edge conveyor belt is arranged on one side of the discharge end conveyor belt in the width direction;

a second movable side conveyor provided on the other side in the width direction of the discharge end conveyor with respect to the second fixed side conveyor, the second movable side conveyor being movable in the width direction with respect to the second fixed side conveyor and being moved to a position where a width-direction pitch equal to the width of the workpiece is defined, so that the side is erected when the workpiece is put in;

the flanging machine also comprises a camera sensor for measuring the vertical height of the side edge;

the adhesive tape attaching device is provided with a driving mechanism in communication connection with the camera sensor, and the driving mechanism drives the adhesive tape attaching device to move in the width direction according to the vertical folding height of the side edge.

9. The hemming machine of claim 1 wherein the tape application device further comprises a tape fixing tray and a cutting unit; the adhesive tape fixing disc is suspended above the conveying device, and the cutting unit is tightly attached to the side edge.

10. The hemming machine of claim 9 wherein the tape applying apparatus further includes a pressing roller and a reinforcing roller, the pressing roller and the reinforcing roller being respectively provided at both ends of the cutting unit in the length direction.

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