Automobile roof fabric calibration device

Abstract

The invention provides an automobile roof fabric calibration device, relates to automatic equipment for manufacturing automobile interiors, and belongs to the technical field of crossing of textile machinery and automobile part production equipment. According to the automobile roof fabric calibration device, the fabric edge offset on a conveying line is monitored, and the situation that the whole fabric is pulled and deformed is avoided only by conducting fine adjustment on an offset area through the material stirring needle capable of conducting precise piercing and traction (by adopting the moving strategy of only pulling but not pushing). According to the automobile roof fabric calibration device, it is ensured that the distances between the four corners of the fabric and the edge of a conveying line are consistent (all the offset approaches the preset value), and a positioning reference is provided for the subsequent compounding / cutting procedure. The material stirring needle of the automobile roof fabric calibration device pierces from the non-rubber surface, so that large-area adhesion between the clamping jaw and the rubber surface is avoided. The distance measurement sensing part of the automobile roof fabric calibration device achieves fabric posture adjustment in a cooperative mode.

Description

Technical Field

[0001] The present invention belongs to the intersecting technical field of textile machinery and automobile parts production equipment, relates to automobile interior decoration manufacturing automation equipment, and specifically relates to an automobile ceiling fabric calibration device. Background Art

[0002] In the production of automotive roof fabrics, rectangular soft fabrics (usually a composite layer of rubber and fabric) need to be transported to the processing station via a conveyor line. The fabric is prone to positional deviation due to the following reasons:

[0003] (1) Material properties: Soft fabrics are soft and easy to deform.

[0004] (2) Transmission vibration: The start and stop or high-speed operation of the conveyor line causes the fabric to slip.

[0005] (3) Lack of edge positioning: Rectangular soft fabrics were initially placed manually on the conveyor line. Traditional manual visual calibration is inefficient (the production line needs to be stopped) and lacks accuracy.

[0006] (4) Limitations of automation solutions: Existing machine vision positioning systems are expensive and sensitive to reflections from the rubber surface; mechanical grippers can easily damage the fabric surface. Summary of the Invention

[0007] The present invention is made to solve the above-mentioned problem, and its purpose is to provide a car roof fabric calibration device.

[0008] The present invention provides a car roof fabric calibration device, which has the following characteristics: it is arranged on a conveyor line and performs position calibration on a rectangular soft fabric on the conveyor line, the length direction of the conveyor line is recorded as the x-axis direction, the width direction of the conveyor line is recorded as the y-axis direction, and the direction perpendicular to the xy plane is recorded as the z-axis direction. One side of the soft fabric is a rubber surface, the rubber surface of the soft fabric is away from the conveyor line, and the fabric surface of the soft fabric is close to the conveyor line. The car roof fabric calibration device includes: a distance measuring sensor part, the number of which is at least 2, which is used to detect the distance between one side edge of the soft fabric along the x-axis direction and the edge of the conveyor line close to the edge, and the distance is recorded as the offset, and a plurality of distance measuring sensors. The sensing parts respectively measure a number of offsets; the number of the material-diverting parts is at least 4, and the material-diverting parts have a material-diverting needle with the needle head pointing downward along the z-axis direction. The material-diverting parts can be displaced along the x-axis direction, the y-axis direction and the z-axis direction. The material-diverting parts are distributed above the edge areas on both sides of the soft fabric along the x-axis direction and at least above the four corner areas of the soft fabric; the first control unit is connected to the number of ranging sensing parts and the number of material-diverting parts, and is used to control at least one of the material-diverting parts to press down along the z-axis direction according to the number of offsets and make the material-diverting needle penetrate the soft fabric fabric and then pull the soft fabric fabric toward the outside of the conveyor line along the y-axis direction, so that all the offsets finally reach the same preset value.

[0009] The automobile ceiling fabric calibration device provided by the present invention may also have the following features: wherein, the material tapping part includes: an x-direction moving component, which is movably arranged in the area above the conveyor line along the x-axis direction; a y-direction moving component, which is movably arranged on the x-direction moving component along the y-axis direction; a z-direction moving component, which is movably arranged on the y-direction moving component along the z-axis direction; and a material tapping needle, which is arranged on the z-direction moving component and its needle head is facing downward along the z-axis direction, and the material tapping needle is driven by the z-direction moving component to move along the z-axis direction.

[0010] The automobile ceiling fabric calibration device provided by the present invention may also have the following features: wherein the x-direction moving component includes a first guide rail, a first rack, a first moving part and a first motor, the first guide rail and the first rack are fixed to the area above the conveyor line through an external fixed position bracket, the length directions of the first guide rail and the first rack are both along the x-axis direction, the first moving part track is embedded in the first guide rail so as to be movable along the x-axis direction, the first motor is fixed on the first moving part, and the power output shaft of the first motor has a gear that matches and meshes with the first rack, and when the first motor is running, the gear on it rotates to mesh with different positions in the length direction of the first rack, thereby driving the first moving part to move in the x-axis direction; the y-direction moving component includes a second guide rail, a second rack, a second moving part and a second gear. And a second motor, a second guide rail and a second rack are fixed on the first moving part, the length directions of the second guide rail and the second rack are both along the y-axis direction, the second moving part track is embedded in the second guide rail so that it can move along the y-axis direction, the second motor is fixed on the second moving part, and the power output shaft of the second motor has a gear that matches and meshes with the second rack. When the second motor is running, it rotates through the gear thereon to mesh with different positions in the length direction of the second rack, thereby driving the second moving part to move in the y-axis direction; the z-direction moving assembly includes a lifting cylinder and a lifting moving part, the lifting cylinder is arranged on a side of the second moving part close to the conveying line and its running direction is along the z-axis direction, and the lifting moving part is driven by the lifting cylinder to move in the z-axis direction; the material displacing needle is fixed on the lifting moving part and its needle head is facing downward along the z-axis direction.

[0011] The automobile ceiling fabric calibration device provided by the present invention may also have the following features: the material tapping part also includes a limiting roller, the limiting roller is located next to the material tapping needle, the wheel surface of the limiting roller is parallel to the yz plane, and in the z-axis direction, the bottom of the limiting roller is higher than the position of the needle tip of the material tapping needle, and the corresponding height difference is less than the thickness of the soft fabric.

[0012] The automobile ceiling fabric calibration device provided by the present invention may also have the following features: wherein, the number of the material-dipping parts is 4, and the two material-dipping parts on one side of the conveyor line in the x-axis direction are sequentially recorded as the first material-dipping part and the second material-dipping part, and the two material-dipping parts on the other side are sequentially recorded as the third material-dipping part and the fourth material-dipping part; the number of the distance-measuring sensor parts is 2, and the two distance-measuring sensor parts are respectively recorded as the first distance-measuring sensor part and the second distance-measuring sensor part, and the first distance-measuring sensor part and the second distance-measuring sensor part are used to detect the edge of the soft fabric on one side of the first material-dipping part and the second material-dipping part and the distance between the edge and the edge. The distance between the edges of the conveyor line at the edge of the first distance measuring sensor portion is measured as the first offset, and the distance measured by the second distance measuring sensor portion is measured as the second offset; the first control unit receives the first offset and the second offset, and compares the differences between the first offset and the second offset and the preset values, which are recorded as Δd1 and Δd2 respectively; when Δd1>0, the first control unit controls the first material-dipping portion to drive the material-dipping needle thereon to press down along the z-axis direction and make the material-dipping needle penetrate the soft fabric fabric and then pull the soft fabric fabric toward the outside of the conveyor line along the y-axis direction, thereby finally making The first offset measured by the first distance measuring sensor unit reaches a preset value; when Δd1<0, the first control unit controls the third material-dipping unit to drive the material-dipping needle thereon to press down along the z-axis direction and make the material-dipping needle penetrate the soft fabric and then pull the soft fabric toward the outside of the conveyor line along the y-axis direction, thereby finally making the first offset measured by the first distance measuring sensor unit reach a preset value; when Δd1=0, both the first material-dipping unit and the third material-dipping unit do not operate; when Δd2>0, the first control unit controls the second material-dipping unit to drive the material-dipping needle thereon to press down along the z-axis direction and make the material-dipping needle After the material needle penetrates the soft fabric, it pulls the soft fabric along the y-axis direction to displace it toward the outside of the conveyor line, so that the second offset measured by the second distance measuring sensor part finally reaches the preset value; when Δd2<0, the first control unit controls the fourth material diverting part to drive the material diverting needle thereon to press down along the z-axis direction and makes the material diverting needle penetrate the soft fabric and pull the soft fabric along the y-axis direction to displace it toward the outside of the conveyor line, so that the second offset measured by the second distance measuring sensor part finally reaches the preset value; when Δd2=0, neither the second material diverting part nor the fourth material diverting part operates.

[0013] The automobile ceiling fabric calibration device provided by the present invention may also have the following features: wherein, each time the first control unit controls the first material digging part, the second material digging part, the third material digging part or the fourth material digging part to press down along the z-axis direction and make the material digging needle penetrate the soft fabric fabric and pull the soft fabric fabric toward the outside of the conveyor line along the y-axis direction, it controls the corresponding first material digging part, the second material digging part, the third material digging part or the fourth material digging part to move upward along the z-axis direction and return to its original position; when Δd1=0 and Δd2=0, the first control unit stops controlling the first material digging part, the second material digging part, the third material digging part or the fourth material digging part.

[0014] The automobile ceiling fabric calibration device provided by the present invention may also have such a feature, further comprising a first detection sensor and a second control unit, the first detection sensor being used to detect whether the soft fabric transported by the conveyor line is delivered to a predetermined position, the conveyor line having a driver for driving itself to transport the soft fabric, the second control unit being connected to the first detection sensor, the driver and the first control unit, and when the second control unit detects through the first detection sensor that the soft fabric transported by the conveyor line is delivered to a predetermined position, the driver is controlled to stop running, and the first control unit is controlled to perform its own function.

[0015] The automobile ceiling fabric calibration device provided by the present invention may also have the following features: wherein, the number of first detection sensors is 2, and the two first detection sensors are distributed on both sides of the width direction of the conveyor line along the y-axis direction, and the operating condition of the second control unit is that any one of the first detection sensors detects that the soft fabric reaches a predetermined position on the conveyor line.

[0016] The automobile ceiling fabric calibration device provided by the present invention may also have the following features: the distance measuring sensor part is a laser rangefinder, the adhesive surface is made of ppfoam material, and the soft fabric fabric has a mixed coating layer of solvent adhesive, catalyst and water on one side of its ppfoam material.

[0017] The automobile ceiling fabric calibration device provided by the present invention may also have the following features: wherein, the operation control process of the automobile ceiling fabric calibration device includes the following steps: S10, when the conveyor line transports the soft fabric, the second control unit detects through the first detection sensor that the soft fabric is transported to the designated position, that is, controls the driver of the conveyor line to stop running; S20, when the first control unit detects through the second control unit that the conveyor line stops running, that is, controls the four material-diverting parts to cooperate with each other, and performs offset pulling adjustment on the soft fabric according to the preset strategy based on the offset measured by the first distance measuring sensor part and the second distance measuring sensor part; S30, after the adjustment is completed, the second control unit controls the conveyor line to continue running to carry out subsequent processes.

[0018] Functions and effects of the invention

[0019] According to the present invention, a car ceiling fabric calibration device includes: at least two distance measuring sensors for detecting the distance between a side edge of a soft fabric along the x-axis and an edge of a conveyor line near the edge, recording the distance as an offset, wherein the plurality of distance measuring sensors respectively measure a plurality of offsets; at least four material diverting parts, each having a diverting needle with a needle head pointing downward along the z-axis, and being displaceable along the x-axis, y-axis, and z-axis directions, wherein the plurality of diverting parts are distributed above the edge areas of the soft fabric on both sides along the x-axis and at least above the four corner areas of the soft fabric; and a first control unit connected to the plurality of distance measuring sensors and the plurality of diverting parts for controlling, according to the plurality of offsets, at least one of the material diverting parts to press downward along the z-axis and cause the diverting needle to penetrate the soft fabric and then pull the soft fabric toward the outside of the conveyor line along the y-axis, thereby ultimately making all the offsets reach the same preset value.

[0020] Therefore, the automobile ceiling fabric calibration device of the present invention has the following beneficial effects:

[0021] (1) Monitor the offset of the fabric edge and use a needle that can accurately penetrate and pull the fabric to make fine adjustments to the offset area (using a "pull but not push" movement strategy) to avoid pulling and deformation of the entire fabric.

[0022] (2) Ensure that the distance between the four corners of the fabric and the edge of the conveyor line is consistent (all offsets are close to the preset values), providing a positioning reference for subsequent compounding / cutting processes.

[0023] (3) The material-dispensing needle penetrates from the non-adhesive surface, thus avoiding adhesion between the clamping jaws and the adhesive surface over a large area.

[0024] (4) The ranging sensor unit cooperates to realize dynamic adjustment of the fabric posture. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is a perspective view of the automobile ceiling fabric calibration device according to an embodiment of the present invention when it is arranged on a bracket;

[0026] Figure 2 yes Figure 1 The corresponding stereogram without the bracket;

[0027] Figure 3 yes Figure 2 Enlarged view of area I;

[0028] Figure 4 middle Figure 3 A three-dimensional image of the corresponding material-selecting part from another perspective;

[0029] Figure 5 yes Figure 4 A three-dimensional image of the corresponding material-selecting part from another perspective;

[0030] Figure 6 Schematic diagram of the material shifting strategy of the material shifting part when the automobile ceiling fabric calibration device in this embodiment is in use. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the following embodiments and accompanying drawings specifically illustrate a vehicle ceiling fabric calibration device of the present invention.

[0032] <Example>

[0033] Figure 1 It is a three-dimensional diagram of the automobile ceiling fabric calibration device in an embodiment of the present invention when it is arranged on a bracket.

[0034] like Figure 1 As shown, this embodiment provides a car roof fabric calibration device 50 for calibrating the position of a rectangular soft fabric B transported on a conveyor line C.

[0035] The conveyor line C has a driver for driving itself to transport the soft fabric B. One side of the soft fabric B is a rubber surface, the rubber surface of the soft fabric B faces away from the conveyor line C, and the fabric surface of the soft fabric B is in close contact with the conveyor line C.

[0036] The adhesive surface is made of ppfoam material, and the soft fabric fabric B has a mixed coating layer of solvent adhesive, catalyst and water on its ppfoam material side.

[0037] The length direction of the conveyor line C is recorded as the x-axis direction, the width direction of the conveyor line C is recorded as the y-axis direction, and the direction perpendicular to the xy plane is recorded as the z-axis direction.

[0038] Figure 2 yes Figure 1 Corresponding stereogram without the bracket.

[0039] like Figures 1 and 2 As shown, the automobile ceiling fabric calibration device 50 includes a material shifting unit 51, a first detection sensor 52, a distance sensing unit 53, a first control unit (not shown in the figure) and a second control unit (not shown in the figure).

[0040] There are four material-picking parts 51 , which are fixed to the area above the conveyor line C through external fixed position brackets D and are roughly located above the four corners of the soft fabric B transported by the conveyor line C.

[0041] Figure 3 yes Figure 2 Enlarged view of area I; Figure 4 middle Figure 3A three-dimensional image of the corresponding material-selecting part from another perspective; Figure 5 yes Figure 4 A three-dimensional image of the corresponding material-selecting part from another perspective.

[0042] like Figures 1 to 5 As shown, the material-discharging portion 51 includes an x-axis moving component 511 , a y-axis moving component 512 , a z-axis moving component 513 , a material-discharging needle 514 and a limiting roller 515 .

[0043] The x-direction moving assembly 511 includes a first guide rail 5111 , a first rack 5112 , a first moving member 5113 , and a first motor 5114 .

[0044] In each material stripping unit 51, there are two first guide rails 5111 and one first rack 5112. The first guide rails 5111 and first rack 5112 are fixed to the area above the conveyor line C via external fixed-position brackets D, and are located approximately above the corners of the soft fabric B being transported by the conveyor line C. The lengths of the first guide rails 5111 and first rack 5112 are both along the x-axis.

[0045] The first moving member 5113 is track-embedded and mounted on the first guide rail 5111 so as to be movable along the x-axis direction.

[0046] The first motor 5114 is fixed to the first movable member 5113. The power output shaft of the first motor 5114 has a gear that meshes with the first rack 5112. When the first motor 5114 is in operation, the gear rotates to mesh with different positions in the length direction of the first rack 5112, thereby driving the first movable member 5113 to move in the x-axis direction.

[0047] The y-axis moving assembly 512 includes a second guide rail 5121 , a second rack 5122 , a second moving member 5123 and a second motor 5124 .

[0048] In each material-selecting portion 51 , the number of second guide rails 5121 and second racks 5122 are 2 and 1 respectively. The second guide rails 5121 and second racks 5122 are fixed to the first moving member 5113 , and the length directions of the second guide rails 5121 and second racks 5122 are along the y-axis direction.

[0049] The second moving member 5123 is track-embedded and mounted on the second guide rail 5121 so as to be movable along the y-axis direction.

[0050] The second motor 5124 is fixed on the second movable member 5123. The power output shaft of the second motor 5124 has a gear that matches and engages with the second rack 5122. When the second motor 5124 is running, the gear thereon rotates to engage with different positions in the length direction of the second rack 5122, thereby driving the second movable member 5123 to move in the y-axis direction.

[0051] The z-moving assembly 513 includes a lifting cylinder 5131 and a lifting moving member 5132 .

[0052] The lifting cylinder 5131 is disposed on a side of the second moving member 5123 close to the conveying line C and its movement direction is along the z-axis.

[0053] The lifting moving part 5132 is driven by the lifting cylinder 5131 to move along the z-axis direction.

[0054] The material-dispensing needle 514 is fixed below the lifting member 5132 and its needle head faces downward along the z-axis direction.

[0055] The limiting roller 515 is fixed below the lifting member 5132 and located next to the material-dispensing needle 514. The wheel surface of the limiting roller 515 is parallel to the yz plane. In the z-axis direction, the bottom of the limiting roller 515 is higher than the needle tip of the material-dispensing needle 514, and the corresponding height difference is less than the thickness of the soft fabric B.

[0056] like Figures 1 to 5 , especially Figure 2 As shown, in this embodiment, the two material-dipping parts 51 on one side of the conveyor line C in the x-axis direction are sequentially recorded as the first material-dipping part 51a and the second material-dipping part 51b, and the two material-dipping parts 51 on the other side are sequentially recorded as the third material-dipping part 51c and the fourth material-dipping part 51d.

[0057] There are two first detection sensors 52 , which are respectively disposed on the second moving member 5123 of the second material-diverting portion 51 b and the fourth material-diverting portion 51 d , and are used to detect whether the soft fabric B conveyed by the conveyor line C has been delivered to a predetermined position.

[0058] There are two distance measuring sensors 53, each of which is a laser rangefinder. These two distance measuring sensors 53 are designated as a first distance measuring sensor 531 and a second distance measuring sensor 532. The first distance measuring sensor 531 and the second distance measuring sensor 532 are respectively disposed on the second movable member 5123 of the first and second material diverting sections 51a, 51b. These sensors are used to detect the distance between the edge of the soft fabric B on one side of the first and second material diverting sections 51a, 52b and the edge of the conveyor line C adjacent to the edge. The distance measured by the first distance measuring sensor 531 is designated as a first offset, and the distance measured by the second distance measuring sensor 532 is designated as a second offset.

[0059] The second control unit (not shown) is connected to the two first detection sensors 52 and the driver of the conveyor line C.

[0060] When the second control unit detects through any one of the two first detection sensors 52 that the soft fabric B transported by the conveyor line C has been delivered to the predetermined position, the second control unit controls the driver to stop running.

[0061] The first control unit (not shown in the figure) is connected to the four first motors 5114, the four second motors 5124, the four lifting cylinders 5131, the first ranging sensor unit 531, the second ranging sensor unit 532 and the second control unit. When the first control unit detects through the second control unit that the conveyor line C stops running, it receives the first offset and the second offset, and compares the differences between the first offset and the second offset and the preset values, which are recorded as Δd1 and Δd2 respectively.

[0062] The first control unit controls the lifting cylinder 5131 of at least one of the four material-discharging parts 51 according to Δd1 and Δd2, so as to drive the lifting moving part 5132 to press down along the z-axis direction and make the material-discharging needle 514 penetrate the soft fabric B and then pull the soft fabric B toward the outside of the conveyor line C along the y-axis direction, so that the first offset and the second offset finally reach roughly the same preset value.

[0063] Each time the first control unit controls the first material digging part 51a, the second material digging part 51b, the third material digging part 51c or the fourth material digging part 51d to press down along the z-axis direction and make the material digging needle 514 penetrate the soft fabric B and then pull the soft fabric B along the y-axis direction toward the outside of the conveyor line C, it controls the corresponding first material digging part 51a, the second material digging part 51b, the third material digging part 51c or the fourth material digging part 51d to move upward along the z-axis direction and return to its original position.

[0064] The control conditions of the first control unit are as follows:

[0065] (1) When Δd1>0, the first control unit controls the first material-discharging portion 51a to drive the material-discharging needle 514 thereon to press downward along the z-axis direction, so that the material-discharging needle 514 penetrates the soft fabric B and then pulls the soft fabric B toward the outside of the conveyor line C along the y-axis direction, thereby ultimately making the first offset measured by the first distance-measuring sensor 531 approximately reach the preset value.

[0066] (2) When Δd1<0, the first control unit controls the third material-discharging portion 51c to drive the material-discharging needle 514 thereon to press down along the z-axis direction and make the material-discharging needle 514 penetrate the soft fabric B and then pull the soft fabric B toward the outside of the conveyor line C along the y-axis direction, so that the first offset measured by the first distance measuring sensor portion 531 finally reaches approximately the preset value.

[0067] (3) When Δd1 = 0, both the first material shifting portion 51 a and the third material shifting portion 51 c do not operate.

[0068] (4) When Δd2>0, the first control unit controls the second material-discharging portion 51b to drive the material-discharging needle 514 thereon to press down along the z-axis direction and make the material-discharging needle 514 penetrate the soft fabric B and then pull the soft fabric B toward the outside of the conveyor line C along the y-axis direction, so that the second offset measured by the second distance measuring sensor portion 532 finally reaches approximately the preset value.

[0069] (5) When Δd2<0, the first control unit controls the fourth material-discharging portion 51d to drive the material-discharging needle 514 thereon to press down along the z-axis direction and make the material-discharging needle 514 penetrate the soft fabric B and then pull the soft fabric B toward the outside of the conveyor line C along the y-axis direction, so that the second offset measured by the second distance measuring sensor portion 532 finally reaches approximately the preset value.

[0070] (6) When Δd2=0, the second material shifting portion 51b and the fourth material shifting portion 51d are not in operation.

[0071] (7) When Δd1 = 0 and Δd2 = 0, the first control unit stops controlling the first material shifting portion 51 a , the second material shifting portion 51 b , the third material shifting portion 51 c or the fourth material shifting portion 51 d .

[0072] In the above control process / conditions, since the offset measured by the first distance measuring sensor part 531 and the second distance measuring sensor part 532 is not the offset of the soft fabric B directly below the material needle 514 (there is a certain deviation in the distance in the x-axis direction), the first control unit will drive the corresponding second motor 5124 in advance according to the installation status of the first distance measuring sensor part 531 and the second distance measuring sensor part 532 before controlling the material needle 514 to press down along the z-axis direction, so that the material needle 514 is displaced in the x-axis direction to eliminate the deviation.

[0073] The operation process of the automobile ceiling fabric calibration device 50 is as follows:

[0074] S10, when the conveyor line C is transporting the soft fabric B, the second control unit detects through the first detection sensor 52 that the soft fabric B has been transported to the designated position, and controls the driver of the conveyor line C to stop running.

[0075] S20, when the first control unit detects through the second control unit that the conveyor line C stops running, it controls the four material-selecting parts 51 to cooperate with each other, and adjusts the offset of the soft fabric B according to the preset strategy based on the offset measured by the first distance measuring sensor part 531 and the second distance measuring sensor part 532.

[0076] Figure 6Schematic diagram of the material shifting strategy of the material shifting part when the automobile ceiling fabric calibration device in this embodiment is in use.

[0077] Specifically in this embodiment, a schematic diagram of the material allocation strategy of the material allocation unit is provided. Figure 6 As shown, the dotted box represents the tilted soft fabric B before the material is shifted, while the solid box represents the adjusted soft fabric B after the material is shifted. The first and second offsets measured by the first and second distance-measuring sensors 531 and 532 are shown as the two thick shaded lines in the figure. If Δd1 < 0 and Δd2 > 0, the first control unit drives the third shifting unit 51c and the second shifting unit 51b, respectively, to shift the soft fabric B, ensuring that the final offsets are equal to the preset values.

[0078] S30, after the adjustment is completed, the second control unit controls the conveyor line C to continue running to perform subsequent processes.

[0079] Functions and Effects of the Embodiments

[0080] According to a car roof fabric calibration device provided by this embodiment, it is set on the conveyor line and performs position calibration on a rectangular soft fabric on it, the length direction of the conveyor line is recorded as the x-axis direction, the width direction of the conveyor line is recorded as the y-axis direction, and the direction perpendicular to the xy plane is recorded as the z-axis direction. One side of the soft fabric is a rubber surface, the rubber surface of the soft fabric is away from the conveyor line, and the fabric surface of the soft fabric is close to the conveyor line, because it includes: a distance measuring sensor part, the number of which is at least 2, for detecting the distance between one side edge of the soft fabric along the x-axis direction and the edge of the conveyor line close to the edge, and the distance is recorded as the offset, and several distance measuring sensors respectively correspond to Several offsets are measured; there are at least four material-dipping parts, each of which has a material-dipping needle with a needle head pointing downward along the z-axis direction, and the material-dipping part can be displaced along the x-axis direction, the y-axis direction and the z-axis direction, and several material-dipping parts are distributed above the edge areas on both sides of the soft fabric along the x-axis direction and at least above the four corner areas of the soft fabric; a first control unit is connected to several ranging sensing parts and several material-dipping parts, and is used to control at least one of the material-dipping parts to press down along the z-axis direction according to several offsets and make the material-dipping needle penetrate the soft fabric fabric and then pull the soft fabric fabric toward the outside of the conveyor line along the y-axis direction, so that all the offsets finally reach the same preset value.

[0081] Therefore, the car ceiling fabric calibration device of this embodiment has the following beneficial effects:

[0082] (1) Monitor the offset of the fabric edge and use a needle that can accurately penetrate and pull the fabric to make fine adjustments to the offset area (using a "pull but not push" movement strategy) to avoid pulling and deformation of the entire fabric.

[0083] (2) Ensure that the distance between the four corners of the fabric and the edge of the conveyor line is consistent (all offsets are close to the preset values), providing a positioning reference for subsequent compounding / cutting processes.

[0084] (3) The material-dispensing needle penetrates from the non-adhesive surface, thus avoiding adhesion between the clamping jaws and the adhesive surface over a large area.

[0085] (4) The ranging sensor unit cooperates to realize dynamic adjustment of the fabric posture.

[0086] Furthermore, the material discharging part includes: an x-direction moving component, which is movably arranged in the area above the conveyor line along the x-axis direction; a y-direction moving component, which is movably arranged on the x-direction moving component along the y-axis direction; a z-direction moving component, which is movably arranged on the y-direction moving component along the z-axis direction; and a material discharging needle, which is arranged on the z-direction moving component and its needle head is facing downward along the z-axis direction, and the material discharging needle is driven by the z-direction moving component to move along the z-axis direction.

[0087] This arrangement has the following beneficial effects: (1) the x, y, and z axis moving components independently drive the material transfer needle, so that the material transfer needle can be accurately moved to any position on the fabric; (2) the modular design facilitates equipment maintenance.

[0088] Furthermore, the x-moving component includes a first guide rail, a first rack, a first moving part and a first motor. The first guide rail and the first rack are fixed to the area above the conveyor line through an external fixed position bracket. The length directions of the first guide rail and the first rack are both along the x-axis direction. The first moving part track is embedded in the first guide rail so as to be movable along the x-axis direction. The first motor is fixed on the first moving part. The power output shaft of the first motor has a gear that matches and meshes with the first rack. When the first motor is running, the gear on it rotates to mesh with different positions in the length direction of the first rack, thereby driving the first moving part to move in the x-axis direction; the y-moving component includes a second guide rail, a second rack, a second moving part and a second motor. The second guide rail and the second rack The rack is fixed on the first movable member, and the length directions of the second guide rail and the second rack are both along the y-axis direction. The second movable member track is embedded in the second guide rail so that it can move along the y-axis direction. The second motor is fixed on the second movable member, and the power output shaft of the second motor has a gear that matches and meshes with the second rack. When the second motor is running, the gear on it rotates to mesh with different positions in the length direction of the second rack, thereby driving the second movable member to move in the y-axis direction; the z-direction moving assembly includes a lifting cylinder and a lifting movable member, the lifting cylinder is arranged on a side of the second movable member close to the conveying line and its running direction is along the z-axis direction, and the lifting movable member is driven by the lifting cylinder to move in the z-axis direction; the material displacing needle is fixed on the lifting movable member and its needle head is facing downward along the z-axis direction.

[0089] This arrangement has the following beneficial effects: (1) The rack + guide rail + motor design of the x and y axes can achieve high rigidity displacement, and the rack drive ensures movement accuracy. (2) The cylinder drive in the z axis realizes high-speed insertion / retraction of the material feeding needle.

[0090] Furthermore, the material-discharging part also includes a limiting roller, which is located next to the material-discharging needle. The wheel surface of the limiting roller is parallel to the yz plane. In the z-axis direction, the bottom of the limiting roller is higher than the position of the needle tip of the material-discharging needle, and the corresponding height difference is less than the thickness of the soft fabric.

[0091] This arrangement has the following beneficial effects: (1) the roller is limited after contacting the fabric, preventing the material-dispensing needle from excessively penetrating and preventing the needle tip from penetrating the material; (2) rolling and squeezing prevents the fabric from wrinkling during traction and can also smooth the fabric.

[0092] Furthermore, the number of the material-digging parts is 4, and the two material-digging parts on one side of the conveyor line in the x-axis direction are sequentially recorded as the first material-digging part and the second material-digging part, and the two material-digging parts on the other side are sequentially recorded as the third material-digging part and the fourth material-digging part; the number of the distance-measuring sensor parts is 2, and the two distance-measuring sensor parts are respectively recorded as the first distance-measuring sensor part and the second distance-measuring sensor part. The first distance-measuring sensor part and the second distance-measuring sensor part are used to detect the distance between the edge of the soft fabric on one side of the first material-digging part and the second material-dipping part and the edge of the conveyor line close to the edge. The first distance-measuring sensor part The distance measured is the first offset, and the distance measured by the second distance measuring sensor is the second offset; the first control unit receives the first offset and the second offset, and compares the differences between the first offset and the second offset and the preset values, which are recorded as Δd1 and Δd2 respectively; when Δd1>0, the first control unit controls the first material-dipping part to drive the material-dipping needle thereon to press down along the z-axis direction and make the material-dipping needle penetrate the soft fabric and then pull the soft fabric toward the outside of the conveyor line along the y-axis direction, so that the first offset measured by the first distance measuring sensor is finally The amount reaches a preset value; when Δd1<0, the first control unit controls the third material-dipping part to drive the material-dipping needle thereon to press down along the z-axis direction and make the material-dipping needle penetrate the soft fabric fabric and then pull the soft fabric fabric toward the outside of the conveyor line along the y-axis direction, thereby finally making the first offset measured by the first distance measuring sensor part reach the preset value; when Δd1=0, both the first material-dipping part and the third material-dipping part do not operate; when Δd2>0, the first control unit controls the second material-dipping part to drive the material-dipping needle thereon to press down along the z-axis direction and make the material-dipping needle penetrate the soft fabric fabric After the material is fabricated, the soft fabric is pulled along the y-axis direction to displace toward the outside of the conveyor line, so that the second offset measured by the second distance measuring sensor part finally reaches a preset value; when Δd2<0, the first control unit controls the fourth material diverting part to drive the material diverting needle thereon to press down along the z-axis direction and make the material diverting needle penetrate the soft fabric and then pull the soft fabric along the y-axis direction to displace toward the outside of the conveyor line, so that the second offset measured by the second distance measuring sensor part finally reaches a preset value; when Δd2=0, neither the second material diverting part nor the fourth material diverting part operates.

[0093] Such a setting has the following beneficial effects: (1) Its control logic is the asymmetric correction of 4 material-digging parts + 2 distance-measuring sensor parts (the specific material-digging part is selected according to the positive or negative value of Δd1 and Δd2), and only the material-digging part on the same side is started to avoid redundant actions; (2) When a single point is offset, only local traction is performed, and a "pull but not push" strategy is adopted to maintain the overall flatness of the fabric and prevent distortion.

[0094] Furthermore, each time the first control unit controls the first material digging part, the second material digging part, the third material digging part or the fourth material digging part to press down along the z-axis direction and make the material digging needle penetrate the soft fabric fabric and pull the soft fabric fabric toward the outside of the conveyor line along the y-axis direction, it controls the corresponding first material digging part, the second material digging part, the third material digging part or the fourth material digging part to move upward along the z-axis direction and return to its original position; when Δd1=0 and Δd2=0, the first control unit stops controlling the first material digging part, the second material digging part, the third material digging part or the fourth material digging part.

[0095] This setting has the following beneficial effects: (1) the material needle is immediately reset after a single action, and the machine stops when the offset is zero, avoiding the material needle from pressing the fabric for a long time; (2) it stops when the preset value is reached, shortening the calibration cycle.

[0096] Furthermore, the vehicle ceiling fabric calibration device also includes a first detection sensor and a second control unit. The first detection sensor is used to detect whether the soft fabric conveyed by the conveyor line has reached a predetermined position. The conveyor line has a driver for driving itself to convey the soft fabric. The second control unit is connected to the first detection sensor, the driver, and the first control unit. When the second control unit detects, via the first detection sensor, that the soft fabric conveyed by the conveyor line has reached the predetermined position, it controls the driver to stop operating and controls the first control unit to perform its own function. There are two first detection sensors, which are distributed along the y-axis on both sides of the width of the conveyor line. The second control unit operates when any one of the first detection sensors detects that the soft fabric has reached the predetermined position on the conveyor line.

[0097] Such a setting has the following beneficial effects: (1) the addition of a first detection sensor (for fabric arrival detection) + a second control unit (for linked conveyor line start and stop) enables fully automatic assembly line operations such as fabric arrival, conveyor line stop, and calibration start without manual intervention; (2) the dual sensors are activated upon any trigger, ensuring detection reliability and achieving design redundancy.

[0098] Furthermore, the distance measuring sensor part is a laser rangefinder, the adhesive surface is made of ppfoam material, and the soft fabric material has a mixed coating layer of solvent adhesive, catalyst and water on its ppfoam material side.

[0099] Such a setting has the following beneficial effects: the needle design is compatible with the sticky coating layer and is not likely to stick to the sticky coating layer after being inserted.

[0100] Those skilled in the art will appreciate that the present invention is not limited to the foregoing embodiments. The foregoing embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A car roof fabric calibration device, characterized in that: A rectangular piece of soft fabric is arranged on a conveyor line and is calibrated thereon. The length direction of the conveyor line is recorded as the x-axis direction, the width direction of the conveyor line is recorded as the y-axis direction, and the direction perpendicular to the xy plane is recorded as the z-axis direction. One side of the soft fabric is a rubber surface, the rubber surface of the soft fabric faces away from the conveyor line, and the fabric surface of the soft fabric is in close contact with the conveyor line. The automobile roof fabric calibration device includes: There are at least two distance measuring sensors, each of which is used to detect the distance between an edge of the soft fabric along the x-axis and an edge of the conveyor line near the edge, and record the distance as an offset. The plurality of distance measuring sensors respectively measure a plurality of offsets. There are at least four material-digging parts, each of which has a material-digging needle with a needle head pointing downward along the z-axis direction. The material-digging parts can be displaced along the x-axis direction, the y-axis direction, and the z-axis direction. Several of the material-digging parts are distributed above the edge areas of the soft fabric along the x-axis direction and at least above the four corner areas of the soft fabric; The first control unit is connected to the plurality of the distance measuring sensing parts and the plurality of the material-discharging parts, and is used to control at least one of the material-discharging parts to press down along the z-axis direction according to the plurality of the offsets, so that the material-discharging needle penetrates the soft fabric and then pulls the soft fabric toward the outside of the conveyor line along the y-axis direction, so that all the offsets eventually reach the same preset value.

2. The car roof fabric calibration device according to claim 1, It is characterized in that Wherein, the material selecting part includes: An x-moving component is movably arranged in the area above the conveyor line along the x-axis direction; A y-direction moving component is movably arranged on the x-direction moving component along the y-axis direction; A z-moving component is movably disposed on the y-moving component along the z-axis direction; and The material-dispensing needle is arranged on the z-moving component and its needle head is downward along the z-axis direction. The material-dispensing needle is driven by the z-moving component to move along the z-axis direction.

3. The automobile ceiling fabric calibration device according to claim 2, characterized in that: in, The x-direction moving assembly includes a first guide rail, a first rack, a first moving member and a first motor. The first guide rail and the first rack are fixed to the area above the conveyor line by an external fixed position bracket. The length directions of the first guide rail and the first rack are both along the x-axis direction. The first moving member track is embedded in the first guide rail so as to be movable along the x-axis direction. The first motor is fixed to the first moving member. The power output shaft of the first motor has a gear that matches and meshes with the first rack. When the first motor is running, the gear thereon rotates to mesh with different positions in the length direction of the first rack, thereby driving the first moving member to move in the x-axis direction. The y-direction moving assembly includes a second guide rail, a second rack, a second moving member and a second motor, the second guide rail and the second rack are fixed to the first moving member, the length directions of the second guide rail and the second rack are along the y-axis direction, the second moving member track is embedded in the second guide rail so as to be movable along the y-axis direction, the second motor is fixed to the second moving member, and the power output shaft of the second motor has a gear that matches and meshes with the second rack. When the second motor is running, the gear on it rotates to mesh with different positions in the length direction of the second rack, thereby driving the second moving member to move in the y-axis direction; The z-moving assembly includes a lifting cylinder and a lifting moving member, wherein the lifting cylinder is arranged on a side of the second moving member close to the conveying line and its running direction is along the z-axis direction, and the lifting moving member is driven by the lifting cylinder to move along the z-axis direction; The material-dispensing needle is fixed on the lifting moving part and its needle head faces downward along the z-axis direction.

4. The automobile ceiling fabric calibration device according to claim 1, characterized in that: in, The material-dispensing part further includes a limiting roller. The limiting roller is located beside the material-dispensing needle, and the wheel surface of the limiting roller is parallel to the yz plane. In the z-axis direction, the bottom of the limiting roller is higher than the position of the needle tip of the material-dispensing needle, and the corresponding height difference is less than the thickness of the soft fabric.

5. The automobile ceiling fabric calibration device according to claim 1, characterized in that: in, The number of the material diverting parts is 4, and the two material diverting parts on one side of the conveyor line in the x-axis direction are sequentially recorded as the first material diverting part and the second material diverting part, and the two material diverting parts on the other side are sequentially recorded as the third material diverting part and the fourth material diverting part; The number of the distance measuring sensor parts is 2, and the two distance measuring sensor parts are respectively recorded as a first distance measuring sensor part and a second distance measuring sensor part. The first distance measuring sensor part and the second distance measuring sensor part are used to detect the distance between the edge of the soft fabric on one side of the first material diverter part and the second material diverter part and the edge of the conveyor line close to the edge. The distance measured by the first distance measuring sensor part is a first offset, and the distance measured by the second distance measuring sensor part is a second offset. The first control unit receives the first offset and the second offset, and compares the differences between the first offset and the second offset and the preset value, which are respectively recorded as Δd1 and Δd2; When Δd1>0, the first control unit controls the first material-diverting part to drive the material-diverting needle thereon to press downward along the z-axis direction, so that the material-diverting needle penetrates the soft fabric and then pulls the soft fabric toward the outside of the conveyor line along the y-axis direction, thereby finally making the first offset measured by the first distance-measuring sensor part reach the preset value; When Δd1 is less than 0, the first control unit controls the third material-discharging portion to drive the material-discharging needle thereon to press downward along the z-axis direction, so that the material-discharging needle penetrates the soft fabric and then pulls the soft fabric toward the outside of the conveyor line along the y-axis direction, thereby ultimately making the first offset measured by the first distance-measuring sensor portion reach the preset value; When Δd1=0, both the first material shifting part and the third material shifting part are not in operation; When Δd2>0, the first control unit controls the second material-diverting part to drive the material-diverting needle thereon to press downward along the z-axis direction, so that the material-diverting needle penetrates the soft fabric and then pulls the soft fabric toward the outside of the conveyor line along the y-axis direction, thereby finally making the second offset measured by the second distance-measuring sensor part reach the preset value; When Δd2<0, the first control unit controls the fourth material-diverting portion to drive the material-diverting needle thereon to press downward along the z-axis direction, so that the material-diverting needle penetrates the soft fabric and then pulls the soft fabric toward the outside of the conveyor line along the y-axis direction, thereby ultimately making the second offset measured by the second distance-measuring sensor portion reach the preset value; When Δd2=0, neither the second material shifting portion nor the fourth material shifting portion operates.

6. The automobile ceiling fabric calibration device according to claim 5, characterized in that: in, Each time the first control unit controls the first material digging part, the second material digging part, the third material digging part or the fourth material digging part to press down along the z-axis direction and make the digging needle penetrate the soft fabric material and pull the soft fabric material along the y-axis direction toward the outside of the conveyor line, the first control unit controls the corresponding first material digging part, the second material digging part, the third material digging part or the fourth material digging part to move upward along the z-axis direction and retract to the original position; When Δd1=0 and Δd2=0, the first control unit stops controlling the first material shifting portion, the second material shifting portion, the third material shifting portion, or the fourth material shifting portion.

7. The automobile ceiling fabric calibration device according to claim 1, characterized in that: It also includes a first detection sensor and a second control unit, The first detection sensor is used to detect whether the soft fabric conveyed by the conveyor line has been delivered to a predetermined position. The conveying line has a drive for driving itself to transport the soft fabric. The second control unit is connected to the first detection sensor, the driver and the first control unit, When the second control unit detects through the first detection sensor that the soft fabric conveyed by the conveyor line is delivered to a predetermined position, the second control unit controls the driver to stop running and controls the first control unit to perform its own function.

8. The automobile ceiling fabric calibration device according to claim 7, characterized in that: in, The number of the first detection sensors is 2, The two first detection sensors are distributed along the y-axis on both sides of the width direction of the conveyor line. The operating condition of the second control unit is that any one of the first detection sensors detects that the soft fabric reaches a predetermined position on the conveyor line.

9. The automobile ceiling fabric calibration device according to claim 1, characterized in that: in, The distance measuring sensor is a laser rangefinder. The rubber surface is made of ppfoam. The soft fabric material has a mixed coating layer of solvent glue, catalyst and water on one side of its PPFOAM material.

10. The automobile ceiling fabric calibration device according to any one of claims 1 to 9, characterized in that: in, The operation control process of the automobile ceiling fabric calibration device includes the following steps: S10, during the conveyor line conveying the soft fabric, the second control unit detects through the first detection sensor that the soft fabric has been conveyed to a designated position, and controls the driver of the conveyor line to stop running; S20, when the first control unit detects through the second control unit that the conveyor line has stopped operating, it controls the four material shifting units to cooperate with each other and perform an offset pulling adjustment on the soft fabric according to a preset strategy based on the offsets measured by the first distance measuring sensor unit and the second distance measuring sensor unit; S30, after the adjustment is completed, the second control unit controls the conveyor line to continue running to perform subsequent processes.

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