CN108582808B - Door panel hemming apparatus with a pulling member and hemming method - Google Patents

Abstract

The invention provides a vehicle door panel edge covering device and a vehicle door panel edge covering method. The door panel hemming apparatus of the present invention includes: the lower die part is provided with a fixed frame, a fabric fixing unit, a hot melt adhesive layer melting and glue melting unit and a turnover pressing unit, wherein the fabric fixing unit, the hot melt adhesive layer melting and glue melting unit and the turnover pressing unit are fixedly arranged on the fixed frame; an upper mold part having a door panel fixing unit and a vertical driving unit; and the control part is used for clamping and drawing the decorative fabric to enable the decorative fabric to be tightly attached to the lower positioning mold, a plurality of through holes are formed in the lower positioning mold, and the vacuum generator is fixedly arranged on the fixing frame and is respectively communicated with the through holes and used for vacuumizing ventilation in the through holes to enable the decorative fabric to be adsorbed and tightly absorbed on the lower positioning mold.

Description

Door panel hemming apparatus with a pulling member and hemming method

Technical Field

The invention belongs to the technical field of automobile decoration, and particularly relates to a vehicle door plate edge wrapping device with a traction member and an edge wrapping method.

Background

In the processing process of the semi-finished product of the door panel, the decorative fabric with the hot melt adhesive layer on the inner surface needs to be adhered to the outer surface of the semi-finished product of the door panel, and the decorative fabric positioned on the edge part of the semi-finished product of the door panel needs to be turned over and pressed on the inner surface of the semi-finished product of the door panel. At present, most of the existing decorative fabrics are manually stuck on the door plate, and then edge-wrapping is completed by adopting edge-wrapping equipment.

However, the manual pasting of the decorative fabric is not only long in time consumption and low in efficiency, but also difficult to ensure that the product has uniform quality. Moreover, in the manual pasting process, the hot melt adhesive layer of the decorative fabric is stressed unevenly, so that the decorative fabric is bonded with the outer surface of the door panel incorrectly and is easy to wrinkle. In addition, because the decorative fabric is easy to slide in the manual sticking process, specific marks on the decorative fabric, such as decorative lines, deviate from the preset installation position on the door panel to form defective products.

In summary, there is a need to provide an automatic apparatus for edge covering of a door panel, so as to overcome the above disadvantages and shortcomings of manually adhering a decorative fabric to a door panel and edge covering.

Disclosure of Invention

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a door panel hemming apparatus having a tension member and a hemming method.

In order to solve the technical problems, the invention adopts the following technical scheme:

the invention provides a door panel hemming device with a drawing member, which is used for adhering a decorative fabric with a hot melt adhesive layer on the inner surface on the outer surface of a door panel and overturning and pressing the decorative fabric positioned on the edge part of the door panel to the inner surface of the door panel, and is characterized by comprising the following components: the lower die part is provided with a fixed frame, a fabric fixing unit fixedly arranged on the fixed frame and used for fixing the decorative fabric, a glue melting unit used for melting a hot melt glue layer of the decorative fabric and heating the door plate, and a turning and pressing unit used for turning and pressing the decorative fabric at the edge part; an upper mold part which is provided right above the fabric fixing unit and can ascend or descend relative to the fabric fixing unit for fixing a door panel and a vertical driving unit for driving the door panel fixing unit to ascend or descend; the shell fabric fixing unit is provided with a lower positioning mould, two traction members and a vacuum generator, wherein the lower positioning mould is fixedly arranged on the fixing frame and has a shape matched with that of the outer surface of the door panel and is used for positioning decorative shell fabrics, the two traction members are symmetrically arranged on the fixing frame and are positioned at two sides of the lower positioning mould and are used for clamping and drawing the decorative shell fabrics to enable the decorative shell fabrics to be tightly attached to the lower positioning mould, a plurality of through holes are formed in the lower positioning mould, the vacuum generator is fixedly arranged on the fixing frame and is respectively communicated with the through holes and is used for ventilating and vacuumizing the through holes to enable the decorative shell fabrics to be adsorbed and tightly absorbed on the lower positioning mould.

The door panel hemming apparatus with a pulling member provided by the present invention may further have the following features: wherein the plurality of through holes are arranged in through hole groups, and the number of the through holes in each through hole group is 5-13.

The door panel hemming apparatus with a pulling member provided by the present invention may further have the following features: wherein, the vent holes in each vent hole group are arranged in a radial shape at the center.

The door panel hemming apparatus with a pulling member provided by the present invention may further have the following features: wherein the pulling member is a manipulator driven by a cylinder.

The door panel hemming apparatus with a pulling member provided by the present invention may further have the following features: the decorative fabric is provided with a decorative line, and the fabric fixing unit further comprises a reference line laser generator for generating a laser reference line corresponding to the installation position of the decorative line.

The door panel hemming apparatus with a pulling member provided by the present invention may further have the following features: the glue melting unit is provided with a horizontal driving assembly and a heating assembly, the horizontal driving assembly is fixedly arranged on the fixing frame, the heating assembly is arranged above the lower positioning mould and is arranged on the horizontal driving assembly, and the horizontal driving assembly is driven by the horizontal driving member to move forward or backward relative to the lower positioning mould.

The door panel hemming apparatus with a pulling member provided by the present invention may further have the following features: wherein, heating element includes the heating frame and is upper heating pipe and the lower heating pipe of corresponding setting on this heating frame from top to bottom, and upper heating pipe is used for heating the door board, and the lower heating pipe is used for melting the melten gel layer.

The door panel hemming apparatus with a pulling member provided by the present invention may further have the following features: wherein, horizontal drive subassembly includes two horizontal slide rails, the gyro wheel, the slider, two horizontal racks, the sideslip pivot, two gears and driving motor, two horizontal slide rail parallel arrangement are on the mount, gyro wheel and slider set up respectively on the left side of heating frame, right side both sides and cooperate with two horizontal slide rails, two horizontal racks correspond the setting and fixed mounting on the mount with two horizontal slide rails respectively, the horizontal pivot sets up on the heating frame, both ends are installed on horizontal rack through the gear respectively, driving motor is used for driving horizontal pivot rotatory, fixed setting is on the heating frame, driving motor's pivot is connected with horizontal pivot.

The door panel hemming apparatus with a pulling member provided by the present invention may further have the following features: wherein, door plant board fixed unit has the mounting bracket and fixes last location mould child and a plurality of clamping jaw subassembly of setting on this mounting bracket, and the mounting bracket setting is on vertical drive unit, goes up location mould child and is used for fixing a position the door plant, has the shape assorted shape with the internal surface of door plant, and a plurality of clamping jaw subassemblies correspond with this last location mould child respectively and set up and install on the mounting bracket for with door plant centre gripping and compress tightly on last location mould child.

The invention also provides a vehicle door panel edge covering method, which is used for sticking the decorative fabric with the hot melt adhesive layer on the inner surface on the outer surface of the vehicle door panel and turning and pressing the decorative fabric positioned at the edge part of the vehicle door panel to the inner surface of the vehicle door panel, and is characterized by comprising the following steps:

step S1, placing the decorative fabric on the lower positioning mould with the inner surface upward, and aligning the decorative line on the decorative fabric with the laser reference line;

step S2, a vacuum generator performs primary vacuum pumping to adsorb the decorative fabric on the lower positioning mould;

step S3, the outer edge of the decorative fabric is gripped and pulled by the pulling member;

step S4, the vacuum generator carries out secondary vacuum pumping to suck the decorative fabric tightly on the lower positioning mould;

step S5, placing the door panel on the decorative fabric with the outer surface facing downwards;

step S6, the vertical driving unit drives the door panel fixing unit to move down from the initial position of the upper mold part to the first position of the upper mold part, and the clamping jaw component acts to clamp and press the door panel on the upper positioning mold;

step S7, the vertical driving unit drives the door panel fixing unit to move from the first position of the upper mold part to the second position of the upper mold part, so that the door panel is at the position higher than the heating assembly;

step S8, the horizontal driving component drives the heating component to move forward from the initial position of the heating unit to the heating position of the heating unit, and the upper heating pipe and the lower heating pipe start to heat in sequence;

step S9, the vertical driving unit drives the door panel fixing unit to move downwards from the second position of the upper die part to the third position of the upper die part, so that the distance between the door panel and the upper heating pipe is in a preset distance range;

step S10, continuously heating the upper heating pipe and the lower heating pipe, and respectively heating the door plate and melting the hot melt adhesive layer;

step S11, the vertical driving unit drives the door panel fixing unit to move from the third position of the upper mold part to the second position of the upper mold part;

step S12, the horizontal driving component drives the heating component to retreat from the heating position of the heating unit to the initial position of the heating unit;

step S13, the vertical driving unit drives the door panel fixing unit to descend from the second position of the upper mold part to the fourth position of the upper mold part, so that the door panel is pressed on the decorative fabric, and at the moment, the turning and pressing unit acts to turn over the decorative fabric positioned on the edge part of the door panel and press the decorative fabric onto the inner surface of the door panel;

step S14, the vertical driving unit drives the door panel fixing unit to move from the fourth position of the upper mold part to the initial position of the upper mold part;

and step S15, returning the clamping jaw assembly, and taking down the door plate from the upper positioning mould.

Action and Effect of the invention

According to the vehicle door panel edge covering equipment with the traction member and the edge covering method, as the lower die part, the upper die part and the control part for controlling the lower die part and the upper die part to act are arranged, the lower die part is provided with a fabric fixing unit, a glue melting unit and a flanging unit, the upper die part is provided with a vehicle door panel fixing unit and a vertical driving unit, the fabric fixing unit is provided with a lower positioning die tire, two traction members and a vacuum generator, the lower positioning die tire has a shape matched with the shape of the outer surface of the vehicle door panel, and can position decorative fabrics; the traction member can clamp and pull the decorative fabric to enable the decorative fabric to be tightly attached to the lower positioning mould; the lower positioning die is provided with the plurality of through holes, the vacuum generator is communicated with the plurality of through holes respectively, and the air in the through holes can be vacuumized to enable the decorative fabric to be tightly sucked on the lower positioning die, so that the decorative fabric is tightly attached to and tightly sucked on the surface of the lower positioning die, the decorative fabric is not prone to wrinkling and sliding, and the problem that the decorative fabric is prone to wrinkling and sliding in the manual operation process in the prior art is solved.

Drawings

FIG. 1 is a block diagram showing the structure of a door panel hemming apparatus according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of a door panel hemming apparatus in an embodiment of the present invention;

FIG. 3 is a block diagram of a fabric fixing unit according to an embodiment of the present invention;

FIG. 4 is an enlarged partial schematic view of FIG. 2;

FIG. 5 is a schematic top view of a glue-melting unit according to an embodiment of the present invention;

FIG. 6 is a schematic bottom view of a glue melting unit according to an embodiment of the present invention; and

fig. 7 is a schematic bottom view of the upper mold portion in the embodiment of the present invention.

Detailed Description

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

FIG. 1 is a block diagram showing the structure of a door panel hemming apparatus according to an embodiment of the present invention; fig. 2 is a schematic structural view of a door panel hemming apparatus in an embodiment of the present invention.

As shown in fig. 1 and 2, the door panel hemming apparatus 100 in this embodiment is configured to attach a trim having a hot melt adhesive layer on an inner surface thereof to an outer surface of a door panel and turn over and press the trim located at an edge portion of the door panel to the inner surface of the door panel, where a trim line is provided on the trim. The door panel hemming apparatus 100 includes a frame (not shown), and a lower mold part 10, an upper mold part 20, and a control part 30 provided on the frame.

The frame is a rectangular parallelepiped frame made of a metal section for mounting and supporting the lower mold part 10, the upper mold part 20, and the control part 30.

As shown in fig. 1 and 2, the lower mold part 10 is disposed on the frame, and includes a fixing frame 11, and a fabric fixing unit 12, a glue melting unit 13, and a pressing unit 14 fixedly disposed on the fixing frame 11.

As shown in fig. 1 and 2, the fixing frame 11 is a frame supported by metal profiles, and is installed on the machine frame for installing and supporting the fabric fixing unit 12, the glue melting unit 13, and the pressing unit 14.

Fig. 3 is a structural block diagram of the fabric fixing unit in the embodiment of the present invention.

As shown in fig. 1 to 3, the fabric fixing unit 12 is used for fixing a decorative fabric, and includes a lower positioning mold 121, a vacuum generator 122, a reference line laser generator 123, and two pulling members 124.

Fig. 4 is a partially enlarged schematic view of fig. 2.

As shown in fig. 2 to 4, the lower positioning mold 121 has a shape matching the shape of the outer surface of the door panel, and is used for fixing the decorative fabric in the processing process, preventing the decorative fabric from moving in the processing process, and facilitating the smooth processing process. The lower positioning mold 121 is provided with a plurality of through hole sets 121a arranged in an array, each through hole set 121a includes 5-13 through holes 121b, and the through holes 121b in each through hole set 121a are radially arranged in the center.

As shown in fig. 2 and 3, the vacuum generator 122 is a vacuum pump which communicates with the through holes 121a through vacuum pipes (not shown). When the vacuum pump pumps the air in the vacuum pipe and the through hole 121a, the through hole 121a sucks the decorative fabric tightly on the lower positioning mold 121.

As shown in fig. 3, the reference line laser generator 123 is used to generate a laser reference line corresponding to the installation position of the decoration line to conveniently and quickly align the decoration line of the decoration material on the corresponding position of the lower positioning mold 121.

As shown in fig. 3, two pulling members 124 are symmetrically disposed on the fixing frame 11 at two sides of the lower positioning mold 121, and are used for clamping and pulling the decoration fabric placed on the lower positioning mold 121, so that the decoration fabric is tightly attached to the lower positioning mold 121. In this embodiment, the pulling member 124 is a robot driven by an air cylinder.

FIG. 5 is a schematic top view of a glue-melting unit according to an embodiment of the present invention; fig. 6 is a schematic bottom view of the glue melting unit in the embodiment of the invention.

As shown in fig. 1, 2, 5 and 6, the glue melting unit 13 is used to melt a hot melt glue layer of a trim and heat a door panel, and includes a heating assembly 131, a horizontal driving assembly 132, and a heat radiating member 133.

As shown in fig. 2, 5 and 6, the heating assembly 131 is disposed above the lower positioning mold 121 and can advance or retreat with respect to the lower positioning mold 121, and includes a heating frame 131a, and an upper heating pipe 131b and a lower heating pipe 131c fixedly disposed on the heating frame 131 a.

The heating rack 131a is mounted on the horizontal driving assembly 132.

The upper heating pipe 131b and the lower heating pipe 131c are arranged in an up-down corresponding manner, the upper heating pipe 131b is used for heating the door panel, and the lower heating pipe 131c is used for melting a hot melt adhesive layer of the decorative fabric.

As shown in fig. 2, 5 and 6, the horizontal driving assembly 132 is used for driving the heating rack 131a of the heating assembly 131 to move forward or backward, and includes two transverse slide rails (not shown), a roller 132a, a slider 132b, two transverse racks (not shown), a transverse rotating shaft 132c, two gears 132d and a driving motor 132 e.

The two transverse sliding rails are arranged in parallel and fixedly arranged on the fixed frame 11.

The rollers 132a and the sliders 132b are respectively fixedly installed at left and right sides of the heating frame 131a, and cooperate with the lateral slide rails to advance or retreat the heating frame 131a relative to the lower positioning mold 121.

The two transverse racks are respectively arranged corresponding to the two transverse sliding rails and are fixedly arranged on the fixed frame 11.

The traverse rotation shaft 132c is provided on the heating rack 131 a.

The two gears 132d are respectively installed at both ends of the traverse rotation shaft 132c and are disposed corresponding to the two transverse racks.

The driving motor 132e is fixedly disposed on the heating rack 131a, and a rotating shaft thereof is connected to the traverse rotating shaft 132c for driving the traverse rotating shaft 132c to rotate, so as to drive the heating rack 131a to slide on the transverse sliding rail.

As shown in fig. 4, the heat radiating member 133 is three heat radiating fans arranged on the heating frame 131a to remove heat generated from the upper and lower heating pipes 131b and 131c after the melting of the hot melt adhesive layer of the trim and the heating operation of the door panel.

As shown in fig. 1 and 2, the turning and pressing unit 14 is used for turning and pressing the decoration material of the edge portion, which includes the outer ring edge portion and the concave edge portion. The turning unit 14 is a prior art, for example, the outer ring turning part 15 and the inner concave turning part 14 in the previously published chinese patent application CN105984131A applied by the present applicant are adopted.

Fig. 7 is a schematic bottom view of the upper mold portion in the embodiment of the present invention.

As shown in fig. 1, 2 and 7, the upper mold part 20 includes a door panel fixing unit 21 and a vertical driving unit 22.

As shown in fig. 1, 2, and 7, the door panel fixing unit 21 is used to fix a door panel, is attached to the vertical driving unit 22, is positioned directly above the fabric fixing unit 12, and can be raised or lowered with respect to the fabric fixing unit 12. The door panel fixing unit 21 includes a mounting bracket 211, and an upper positioning mold 212 and a plurality of grip assemblies 213 fixedly provided on the mounting bracket 211.

As shown in fig. 1, 2 and 7, the mounting frame 211 is used to fixedly mount the upper positioning form 212 and the jaw assembly 213.

As shown in fig. 7, the upper positioning mold 212 has a shape matching the shape of the inner surface of the door panel, and is used for fixing the door panel during the processing process, preventing the door panel from shaking during the processing process, and facilitating the smooth processing process.

The jaw assembly 213, which is used to grip the door panel and press the door panel against the upper positioning mold 212, includes a jaw driving member 213a and a jaw member 213 b.

The jaw driving member 213a is fixedly provided on the mounting bracket 211. In this embodiment, the jaw drive member 213 is a cylinder.

The jaw member 213b is mounted on the jaw driving member 213a, and the door panel is gripped and pressed against the upper positioning mold 212 by the jaw driving member 213 a. The jaw member 213b is a robot.

As shown in fig. 1, a vertical driving unit 22 is fixedly provided on the frame for driving the door panel fixing unit 21 to ascend or descend. The vertical drive unit 22 is conventional, such as a slide-rail type structure.

As shown in fig. 1, the control unit 30 controls the lower mold unit 10 and the upper mold unit 20 to operate.

The door panel hemming method in the present embodiment employs the door panel hemming apparatus 100 shown in fig. 1 and 2, and includes the steps of:

step S1:

the decorative fabric is placed on the lower positioning mold 121 with the inner surface facing upward, and the decorative line is aligned with the laser reference line.

Step S2:

the vacuum generator 122 performs a first-stage vacuum pumping to adsorb the decorative fabric onto the lower positioning mold 121.

Step S3:

the pulling member 124 holds and pulls the outer edge portion of the decorative fabric.

Step S4:

the vacuum generator 122 performs a second-stage vacuum-pumping to tightly suck the decorative fabric on the lower positioning mold 121.

Step S5:

and placing the door plate on the decorative fabric with the outer surface facing downwards.

Step S6:

the vertical driving unit 22 drives the door panel fixing unit 21 to move down from the initial position of the upper mold portion to the first position of the upper mold portion, and the jaw assembly 213 acts to clamp and press the door panel onto the upper positioning mold 212.

Step S7:

the vertical drive unit drives 22 the door panel fixing unit 21 from the upper mold portion first position to the upper mold portion second position with the door panel at a position higher than the heating assembly 131.

Step S8:

the horizontal driving assembly 132 drives the heating assembly 131 to advance from the heating unit initial position to the heating unit heating position, and the upper heating pipe 131b and the lower heating pipe 131c start heating in sequence.

Step S9:

the vertical driving unit 22 drives the door panel fixing unit 21 to move down from the second position of the upper mold portion to the third position of the upper mold portion, so that the distance between the door panel and the upper heating pipe 131b is within a predetermined distance range.

Step S10:

the upper heating pipe 131b and the lower heating pipe 131c are continuously heated to heat the door panel and melt the hot melt adhesive layer, respectively.

Step S11:

the vertical driving unit 22 drives the door panel fixing unit 21 to move from the upper mold section third position to the upper mold section second position.

Step S12:

the horizontal driving assembly 132 drives the heating assembly 131 to retreat from the heating unit heating position to the heating unit initial position.

Step S13:

the vertical driving unit 22 drives the door panel fixing unit 21 to descend from the second position of the upper mold portion to the fourth position of the upper mold portion, and presses the door panel against the decorative fabric, and at this time, the turning and pressing unit 14 operates to turn over the decorative fabric located at the edge portion of the door panel and press the same against the inner surface of the door panel.

Step S14:

the vertical driving unit 22 drives the door panel fixing unit 21 to move from the fourth position of the upper mold portion to the initial position of the upper mold portion.

Step S15:

the jaw assembly 213 is returned to remove the door panel from the upper positioning mold 212, thereby completing a wheel hemming operation.

Examples effects and effects

According to the door panel hemming apparatus and the hemming method with the drawing member according to the embodiment, since the lower die part, the upper die part and the control part for controlling the lower die part and the upper die part to move are provided, the lower die part is provided with the fabric fixing unit, the glue melting unit and the flanging unit, the upper die part is provided with the door panel fixing unit and the vertical driving unit, the fabric fixing unit is provided with the lower positioning die tyre, the two drawing members and the vacuum generator, the lower positioning die tyre has a shape matched with the shape of the outer surface of the door panel, and can position the decorative fabric; the traction member can clamp and pull the decorative fabric to enable the decorative fabric to be tightly attached to the lower positioning mould; the lower positioning die is provided with the plurality of through holes, the vacuum generator is communicated with the plurality of through holes respectively, and the air in the through holes can be vacuumized to enable the decorative fabric to be tightly sucked on the lower positioning die, so that the decorative fabric is tightly attached to and tightly sucked on the surface of the lower positioning die, the decorative fabric is not prone to wrinkling and sliding, and the problem that the decorative fabric is prone to wrinkling and sliding in the manual operation process in the prior art is solved.

Furthermore, as the through holes are arranged in the through hole groups, the number of the through holes in each through hole group is 5-13, and the through holes in each through hole group are radially arranged in the center, the vacuum suction force for adsorbing the decorative fabric on the lower positioning die tire is increased, so that the decorative fabric is more firmly adsorbed on the lower positioning die tire, and the fixing effect of the decorative fabric is further enhanced.

In addition, the traction member is a manipulator driven by the cylinder, so that the decorative fabric is easier to clamp and pull, and the simplicity of equipment operation is further improved.

In addition, because the glue melting unit has horizontal drive subassembly and heating element, heating element can advance or retreat for lower location mould child under the drive of horizontal drive subassembly, can conveniently melt the hot melt adhesive layer of placing the decorative fabric on lower location mould child simultaneously and heat the door plant of placing on last location mould child, and can conveniently retreat the return in time after accomplishing melting and heating, so that the last mould portion moves down and makes door plant fixed unit compress tightly the door plant on decorative fabric, thereby realized that decorative fabric firmly pastes on the door plant.

The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.

Claims (5)

1. A door panel hemming apparatus having a drawing member for sticking a decoration material having a hot melt adhesive layer on an inner surface thereof on an outer surface of a door panel and turning and pressing the decoration material located at an edge portion of the door panel to the inner surface of the door panel, characterized by comprising:

the lower die part is provided with a fixed frame, a fabric fixing unit fixedly arranged on the fixed frame and used for fixing the decorative fabric, a glue melting unit used for melting a hot melt glue layer of the decorative fabric and heating the door panel, and a turning and pressing unit used for turning and pressing the decorative fabric at the edge part;

an upper mold part having a door panel fixing unit provided right above the fabric fixing unit and capable of ascending or descending relative to the fabric fixing unit for fixing the door panel, and a vertical driving unit for driving the door panel fixing unit to ascend or descend; and

a control part for controlling the actions of the lower die part and the upper die part,

wherein the fabric fixing unit is provided with a lower positioning mould, two traction members and a vacuum generator,

the lower positioning mould is fixedly arranged on the fixed frame, has a shape matched with the shape of the outer surface of the door panel and is used for positioning the decorative fabric,

the two traction members are symmetrically arranged on the fixed frame and positioned at two sides of the lower positioning mould, and are used for clamping and drawing the decorative fabric to enable the decorative fabric to be tightly attached to the lower positioning mould,

a plurality of through holes are arranged on the lower positioning mould,

the vacuum generator is fixedly arranged on the fixed frame, is respectively communicated with the through holes, and is used for carrying out primary vacuum pumping before the traction member clamps and pulls the decorative fabric so as to adsorb the decorative fabric on the lower positioning mould, and carrying out secondary vacuum pumping after the traction member clamps and pulls the decorative fabric so as to tightly suck the decorative fabric on the lower positioning mould,

a plurality of the through holes are arranged in through hole groups, the number of the through holes in each through hole group is 5-13, the through holes in each through hole group are radially arranged in the center,

the decorative fabric is provided with a decorative line,

the fabric fixing unit also comprises a reference line laser generator used for generating a laser reference line corresponding to the installation position of the decorative line,

the glue melting unit is provided with a horizontal driving component and a heating component,

the horizontal driving component is fixedly arranged on the fixed frame,

the heating assembly is arranged above the lower positioning mould and is arranged on the horizontal driving assembly, and the heating assembly moves forwards or backwards relative to the lower positioning mould under the driving of the horizontal driving component,

the heating component comprises a heating frame, an upper heating pipe and a lower heating pipe which are correspondingly arranged on the heating frame up and down,

the upper heating pipe is used for heating the door panel,

the lower heating pipe is used for melting the melt adhesive layer.

2. The door panel taping apparatus with a puller member as set forth in claim 1, wherein:

wherein the pulling member is a manipulator driven by a cylinder.

3. The door panel taping apparatus with a puller member as set forth in claim 1, wherein:

wherein the horizontal driving component comprises two horizontal sliding rails, a roller, a sliding block, two horizontal racks, a horizontal rotating shaft, two gears and a driving motor,

the two transverse sliding rails are arranged on the fixed frame in parallel,

the roller and the slide block are respectively arranged at the left side and the right side of the heating frame and are matched with the two transverse slide rails,

the two transverse racks are respectively arranged corresponding to the two transverse sliding rails and are fixedly arranged on the fixed frame,

the transverse rotating shaft is arranged on the heating frame, two ends of the transverse rotating shaft are respectively arranged on the transverse rack through the gear,

the driving motor is used for driving the transverse rotating shaft to rotate and is fixedly arranged on the heating frame, and the rotating shaft of the driving motor is connected with the transverse rotating shaft.

4. The door panel taping apparatus with a puller member as set forth in claim 1, wherein:

wherein the door panel fixing unit is provided with a mounting rack, an upper positioning mould and a plurality of clamping jaw assemblies which are fixedly arranged on the mounting rack,

the mounting bracket is provided on the vertical driving unit,

the upper positioning mould is used for positioning the door panel and has a shape matched with the shape of the inner surface of the door panel,

the clamping jaw assemblies are respectively arranged corresponding to the upper positioning mould tires and are arranged on the mounting frame, and the clamping jaw assemblies are used for clamping and pressing the door plate on the upper positioning mould tires.

5. A door panel hemming method of attaching a finishing material having a hot-melt adhesive layer on an inner surface thereof to an outer surface of a door panel and turning and pressing the finishing material located at an edge portion of the door panel to an inner surface of the door panel using the door panel hemming apparatus having a drawing member according to any one of claims 1 to 4, characterized by comprising the steps of:

step S1, placing the decorative fabric on a lower positioning mould with the inner surface upward, and aligning the decorative line on the decorative fabric with the laser reference line;

step S2, a vacuum generator performs primary vacuum pumping to adsorb the decorative fabric on the lower positioning mould;

step S3, a pulling member clamps and pulls the outer edge portion of the decorative fabric;

step S4, the vacuum generator performs secondary vacuum pumping to suck the decorative fabric tightly on the lower positioning mould;

step S5, placing the door panel on the decorative fabric with the outer surface facing downwards;

step S6, the vertical driving unit drives the door panel fixing unit to move downwards from the initial position of the upper mold part to the first position of the upper mold part, and the clamping jaw component acts to clamp and press the door panel on the upper positioning mold;

step S7, the vertical driving unit drives the door panel fixing unit to move from the first position of the upper mold part to the second position of the upper mold part, so that the door panel is at a position higher than the heating assembly;

step S8, the horizontal driving component drives the heating component to move forward from the initial position of the heating unit to the heating position of the heating unit, and the upper heating pipe and the lower heating pipe start to heat in sequence;

step S9, the vertical driving unit drives the door panel fixing unit to move downwards from the second position of the upper die part to the third position of the upper die part, so that the distance between the door panel and the upper heating pipe is in a preset distance range;

step S10, continuously heating the upper heating pipe and the lower heating pipe, and respectively heating the door plate and melting the hot melt adhesive layer;

step S11, the vertical driving unit drives the door panel fixing unit to move up from the third position of the upper mold part to the second position of the upper mold part;

step S12, the horizontal driving component drives the heating component to retreat from the heating unit heating position to the heating unit initial position;

step S13, the vertical driving unit drives the door panel fixing unit to descend from the second position of the upper mold portion to the fourth position of the upper mold portion, so that the door panel is pressed against the decorative fabric, and at this time, the flipping and pressing unit acts to flip and press the decorative fabric located at the edge of the door panel to the inner surface of the door panel;

step S14, the vertical driving unit drives the door panel fixing unit to move from the fourth position of the upper mold part to the initial position of the upper mold part;

and step S15, returning the clamping jaw assembly, and taking down the door plate from the upper positioning mould.

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