An adjustable stacking and beating device

Abstract

The present invention discloses an adjustable stacking slapping device, wherein a plate thickness detection device is located above a front slapping device, a rear slapping device is directly connected to a stacking mechanism through a supporting mechanism, a rear slapping assembly comprises a rear slapping plate adjustment mechanism, a detachable slapping plate and a slapping plate mechanism, the detachable slapping plate is inserted into the slapping mechanism, the detachable slapping plate and the slapping plate mechanism are connected by dovetail slot plug-in, the upper part of the slapping assembly is connected to the supporting mechanism through a pin key, the lower part of the slapping assembly is connected to a nitrogen cylinder through a hinge and then connected to the supporting mechanism through a hinge, the rear slapping plate adjustment mechanism comprises an adjustment screw rod and a limit block, an impulse sensor is provided between the limit block and the slapping mechanism, and the rear slapping plate adjustment mechanism is connected to the supporting mechanism. The present invention is used to solve the problems of uneven stacking, flanging, crushing and other quality defects of sheets of different specifications, thicknesses and materials in the stacking process, so as to achieve smooth stacking of sheets, reduce the stacking downtime rate and the sheet surface quality unqualified rate.

Description

Technical Field

[0001] The invention relates to sheet material stacking equipment, in particular to an adjustable stacking and beating device. Background Art

[0002] As the market's requirements for the surface quality of steel products become higher and higher, the requirements for many sheets used in the exterior of automobiles are even more stringent. During the stacking process, the sheets may have quality defects such as uneven stacking, flanging, and crushing during the contact process with the stacking device. The sheets may even tip over due to uneven stacking. In this case, the produced sheets can only be scrapped.

[0003] The sheet stacking equipment of traditional production lines generally uses a cylinder to push the flapping plate forward to make the sheets stack neatly, or a spring or airbag is installed on the back of the flapping plate to slow down the sheets to the stacking position. However, the stacking method of the flapping plate pushed by the cylinder is not suitable for thin and soft sheets, and the stacking method of installing springs or airbags on the back will cause the springs to break or the airbags to break when producing large and thick sheets. The damaged springs and airbags fall into the sheets and cause new quality defects. Summary of the invention

[0004] In response to the problems existing in the prior art, the present invention provides an adjustable stacking beating device for solving quality defects such as uneven stacking, flanging, crushing, etc. of plates of different specifications, thicknesses and materials during the stacking process, so as to achieve smooth stacking of plates, reduce the stacking downtime rate and the rate of unqualified surface quality of plates.

[0005] The purpose of the present invention is achieved through the following technical solutions.

[0006] An adjustable stacking and beating device comprises a plate thickness detection device, a rear beating device, a front beating device, a side beating device, and a stacking elevator, wherein the plate thickness detection device is located above the front beating device, the rear beating device is directly connected to the stacking mechanism through a supporting mechanism, the rear beating device comprises a rear beating position adjustment mechanism, a rear beating position adjustment motor, and a rear beating assembly, the rear beating assembly comprises a rear clapping plate adjustment mechanism, a detachable clapping plate, and a clapping plate mechanism, the detachable clapping plate is inserted into the clapping mechanism, the detachable clapping plate and the clapping plate mechanism are connected by dovetail groove plug-in connection, the upper part of the rear beating assembly is connected to the supporting mechanism through a pin key, the lower part of the rear beating assembly is connected to the nitrogen cylinder through a connecting piece and a pin key, and then connected to the supporting mechanism through a hinge, the rear clapping plate adjustment mechanism comprises an adjustment screw and a limit block, an impact sensor is provided between the limit block and the clapping mechanism, and the rear clapping plate adjustment mechanism is connected to the supporting mechanism.

[0007] The adjusting screw is connected to the supporting mechanism through a threaded connection, the adjusting screw and the rear plate adjusting motor have synchronous wheels and are connected through a synchronous belt, the limit block is connected to the adjusting screw through a connecting pin, and the rear plate adjusting motor drives the adjusting screw to change the position of the limit block.

[0008] The limit block is a polyurethane limit block.

[0009] The plate thickness detection device includes an upper laser probe and a lower laser probe, which are arranged relative to each other at a fixed spacing A. When the plate passes, the upper laser probe emits a laser beam to illuminate the upper surface of the plate to be measured, and the diffuse reflection light of the light spot on the upper surface is returned to the CMOS or CCD chip in the upper laser probe. By analyzing and calculating the position of the light spot on the CMOS or CCD chip, the actual distance B1 from the upper laser probe to the upper surface of the object to be measured can be obtained; similarly, the distance B2 from the lower laser probe to the lower surface of the object to be measured can be obtained. The distance B1 and B2 from the two probes to the upper and lower surfaces of the object to be measured can be subtracted from the spacing A between the two probes to obtain the thickness H of the object to be measured. The obtained thickness H is transmitted to the stacking control system as real-time plate thickness data for PLC calculation.

[0010] The impulse sensor converts the generated impulse into an electrical signal after the sheet metal hits the beating mechanism and transmits it to the stacking control system. The PLC converts the impulse signal with the plate thickness value, and the calculated value is compared with the impulse curve value in the system. The difference after comparison is fed back to the rear beating plate adjustment motor for adjustment until the difference after comparison is within the tolerance range of the impulse curve value.

[0011] The surface material of the detachable beating board is polyurethane.

[0012] The thread of the adjusting screw is M18*2.5mm, the maximum adjustment stroke of the rear plate adjustment mechanism is 80mm, and the maximum adjustment angle is 13°.

[0013] The angle of the dovetail groove is 55°.

[0014] Compared with the prior art, the advantages of the present invention are: the present invention is installed inside the stacking equipment, and the thickness of the sheet material can be measured in real time when the sheet material enters the stacking equipment. The sheet material hits the detachable flapping plate, and the impact sensor converts the impact force into an electrical signal. The flapping assembly unloads the impact force of the sheet material under the action of the nitrogen cylinder, and the stacking control system calculates and compares the sheet thickness and the impact force, and feeds back the result to the rear flapping plate adjustment motor to adjust the position of the polyurethane limit block, and the sheet material stops at the set position under the action of the polyurethane limit block.

[0015] The stroke of the rear plate adjustment mechanism is 80mm and the adjustment angle is 13°. The rear plate adjustment mechanism solves the problem of stacking plates of different specifications, thicknesses and materials. It also eliminates the flanging and crushing of mild steel sheets with a thickness of less than 0.5mm and a tensile strength of less than 280MPa during the stacking process. It reduces the scrapping of plates and reduces downtime.

[0016] The detachable flapping plate on the flapping assembly is connected to the flapping plate mechanism by dovetail slot plug-in connection. When disassembling, you only need to pull out the detachable flapping plate upwards, and when installing, insert it downwards. The detachable flapping plate can be freely selected according to the material characteristics. The detachable flapping plate is equipped with a polyurethane plate. When the polyurethane plate contacts the sheet material, it will not scratch the surface of the sheet material. The material is wear-resistant and has little wear and tear when in contact with the sheet material for a long time, which reduces the secondary contamination of the sheet material by foreign matter and greatly reduces the surface quality defect rate of the sheet material.

[0017] The side beating device and the front beating device are connected to the stacking mechanism and are used to beat the other sides of the sheet material to achieve the purpose of stacking. The elevator is located below the stacking mechanism and is used to stack the sheet material.

[0018] The present invention effectively solves the problems of uneven stacking, stacking overturning and surface quality defects of sheet materials during the stacking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention.

[0020] Figure 2 It is a structural schematic diagram of the rear flapping assembly of the present invention.

[0021] Figure 3 It is the plate thickness and impulse curve diagram of the present invention.

[0022] In the figure: 1, rear beating assembly 2, plate thickness detection device 3, rear beating position adjustment mechanism 4, side beating device 5, front beating device 6, stacking mechanism 7, stacking elevator 8, rear beating position adjustment motor 9, clapping plate mechanism 10, detachable clapping plate 11, adjustment screw rod 12, connecting pin 13, polyurethane limit block 14, connecting piece 15, pin key 16, nitrogen cylinder 17, impact sensor 18, supporting mechanism 19, beating connecting pin 20, synchronous wheel 21, synchronous belt 22, rear beating plate adjustment motor. DETAILED DESCRIPTION

[0023] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] An adjustable stacking and beating device comprises a plate thickness detection device 2, a rear beating device, a front beating device 5, a side beating device 4, and a stacking elevator 7, wherein the plate thickness detection device 2 is located above the front beating device 5, and the rear beating device is directly connected to the stacking mechanism 6 via a supporting mechanism 18, and the rear beating device comprises a rear beating position adjustment mechanism 3, a rear beating position adjustment motor 8, and a rear beating assembly 1, and the rear beating assembly 1 comprises a rear clapping plate adjustment mechanism, a detachable clapping plate 10, and a clapping plate mechanism 9, and the detachable clapping plate 10 is inserted into the clapping mechanism, and the detachable clapping plate 10 and the clapping plate mechanism 9 are connected by a dovetail groove plug-in connection, and the angle of the dovetail groove is 55°.

[0025] The upper part of the rear slapping assembly 1 is connected to the supporting mechanism 18 through a pin key, and the lower part of the rear slapping assembly 1 is connected to the nitrogen cylinder 16 through a connecting piece 14 and a pin key 15 and then connected to the supporting mechanism 18 through a hinge. The rear slapping plate adjustment mechanism includes an adjustment screw rod 11 and a limit block, and an impact sensor 17 is provided between the limit block and the slapping mechanism. The rear slapping plate adjustment mechanism is connected to the supporting mechanism 18.

[0026] The adjusting screw 11 is connected to the supporting mechanism 18 through threads, the adjusting screw 11 and the rear plate adjusting motor are provided with a synchronous wheel 20 and are connected through a synchronous belt 21, the limit block is connected to the adjusting screw 11 through a connecting pin 12, and the adjusting screw 11 is driven by the rear plate adjusting motor 22 to change the position of the limit block.

[0027] The limit block is a polyurethane limit block 13 .

[0028] The plate thickness detection device 2 includes an upper laser probe and a lower laser probe, which are arranged relative to each other at a fixed spacing A. When the plate passes by, the upper laser probe emits a laser beam to illuminate the upper surface of the plate to be measured, and the diffuse reflection light of the light spot on the upper surface is returned to the CMOS or CCD chip in the upper laser probe. By analyzing and calculating the position of the light spot on the CMOS or CCD chip, the laser beam forms a very small light spot on the surface of the object to be measured. The imaging objective lens images the light spot onto the photosensitive surface of the photosensitive receiver, and generates an electrical signal to detect the position of the light spot on its sensitive surface. When the object to be measured moves, the position of the light spot on its surface relative to the imaging objective lens changes, and accordingly, the position of its image point on the photosensitive device also changes, and the actual moving distance of the object to be measured can be calculated. The actual distance B1 from the upper laser probe to the upper surface of the object can be obtained; similarly, the distance B2 from the lower laser probe to the lower surface of the object can be obtained. The distance B1 and B2 from the two probes to the upper and lower surfaces of the object can be obtained by subtracting the distance A between the two probes from the distance B1 and B2 to the upper and lower surfaces of the object. The obtained thickness H is transmitted to the stacking control system as real-time plate thickness data for PLC calculation.

[0029] The impact sensor 17 converts the impact force generated after the sheet material impacts the flapping mechanism into an electrical signal and transmits it to the stacking control system. The PLC converts the impulse signal and the sheet thickness value, and the calculated value obtained is compared with the impulse curve value in the system. The difference after comparison is fed back to the rear flap adjustment motor for adjustment until the difference after comparison is within the tolerance range of the impulse curve value. The impact force calculation formula is F = kρBLHV, where F is the impact force generated by the sheet material; k is a constant coefficient, which changes according to the tensile strength of the sheet material, usually taking 0.8 - 1.0; ρ is the material density, usually taking 7.85 g / cm 3 , B is the width of the material, L is the length of the material, H is the thickness of the material, and V is the instantaneous production speed of the production line. After the sheet material impacts the flapping plate, the impact sensor 17 converts the impact force into an electrical signal and transmits it to the stacking control system. The PLC converts the impulse signal and the sheet thickness value, and the calculated value ΔF obtained is compared with the impulse curve value in the system. If ΔF > Fmax after comparison, it is fed back to the rear flap adjustment motor for adjustment in the positive direction; if ΔF < Fmin after comparison, it is fed back to the rear flap adjustment motor for adjustment in the negative direction until Fmin ≤ ΔF ≤ Fmax is within the tolerance range of the impulse curve value after comparison, as Figure 3 shown.

[0030] The surface material of the detachable flapping plate 10 is polyurethane. Polyurethane will not scratch the surface of the sheet material, and the material is wear-resistant, with little wear after long-term contact with the sheet material, eliminating the hidden danger of foreign matter contaminating the surface of the sheet material.

[0031] The detachable flapping plate 10 can be quickly disassembled and assembled, and can be freely selected according to different material characteristics.

[0032] The thread of the adjustment screw rod 11 is M18 * 2.5 mm. The maximum adjustment stroke of the rear flap adjustment mechanism pushing the limit block is 80 mm, and the maximum adjustment angle of the limit block pushing the flapping mechanism 9 with the flapping connection pin 19 as the origin is 13°.

[0033] When the sheet material enters the stacking equipment, the sheet thickness detection device 2 measures the sheet material thickness in real time. When the sheet material contacts an adjustable stacking slapping device, the sheet material first contacts the polyurethane plate of the detachable slapping plate 10. The polyurethane plate is driven by the impact force to move the slapping assembly backward. The impact sensor 17 converts the impact force into an electrical signal. The slapping assembly unloads the impact force of the sheet material under the action of the nitrogen cylinder 16 and stops under the action of the polyurethane limit block 13. The stacking control system calculates and compares the sheet thickness and the impact force, and feeds back the results to the rear slapping plate adjustment motor 22 to adjust the position of the polyurethane limit block 13. The sheet material stops at the set position under the action of the polyurethane limit block 13. Afterwards, the side slapping device 4 and the front slapping device 5 slap the other surfaces of the sheet material to achieve the purpose of stacking. After the sheet material accumulates to a certain height, the elevator automatically descends until the stacking of the sheet material is completed.

Claims

1. An adjustable stacking and beating device, characterized in that It includes a plate thickness detection device, a rear flapping device, a front flapping device, a side flapping device, and a stacking elevator. The plate thickness detection device is located above the front flapping device. The rear flapping device is directly connected to the stacking mechanism through a support mechanism. The rear flapping device includes a rear flapping position adjustment mechanism, a rear flapping position adjustment motor, and a rear flapping assembly. The rear flapping assembly includes a rear flap adjustment mechanism, a detachable flapping plate, and a flap mechanism. The detachable flapping plate is inserted on the flap mechanism. The detachable flapping plate and the flap mechanism are connected by dovetail groove plug-in. The upper part of the rear flapping assembly is connected to the support mechanism by a pin key. The lower part of the rear flapping assembly is connected to a nitrogen cylinder through a connecting piece and then connected to the support mechanism by a hinge. The rear flap adjustment mechanism includes an adjustment screw rod and a limit block. There is an impact force sensor between the limit block and the flap mechanism. The rear flap adjustment mechanism is connected to the support mechanism. After the sheet material impacts the flap mechanism, the impact force sensor converts the generated impact force into an electrical signal and transmits it to the stacking control system. The PLC converts the impulse signal and the plate thickness value, and the obtained calculated value is compared with the impulse curve value in the system. The difference after comparison is fed back to the rear flap adjustment motor for adjustment until the difference after comparison is within the tolerance range of the impulse curve value. The specific impact force calculation formula is F = kρBLHV, where F is the impact force generated by the sheet material; k is a constant coefficient, which varies according to the tensile strength of the sheet material, taking 0.8 - 1.0; ρ is the material density, taking 7.85 g / cm 3 , B is the width of the material, L is the length of the material, H is the thickness of the material, and V is the instantaneous production speed of the production line. After the sheet material impacts the flapping plate, the impact force sensor converts the impact force into an electrical signal and transmits it to the stacking control system. The PLC converts the impulse signal and the plate thickness value, and the obtained calculated value ΔF is compared with the impulse curve value in the system. If ΔF > Fmax after comparison, it is fed back to the rear flap adjustment motor for positive adjustment; if ΔF < Fmin after comparison, it is fed back to the rear flap adjustment motor for negative adjustment until Fmin ≤ ΔF ≤ Fmax is within the tolerance range of the impulse curve value after comparison. The plate thickness detection device includes an upper laser probe and a lower laser probe. The upper laser probe and the lower laser probe are arranged opposite to each other at a fixed distance A. When the sheet material passes by, the upper laser probe emits a laser beam to irradiate the upper surface of the measured sheet material. The diffuse reflected light of the upper surface light spot returns to the CMOS or CCD chip in the upper laser probe. By analyzing and calculating the position of the light spot on the CMOS or CCD chip, the actual distance B1 from the upper laser probe to the upper surface of the measured object can be obtained. Similarly, the distance B2 from the lower laser probe to the lower surface of the measured object can be obtained. Subtracting the distances B1 and B2 from the two probes to the upper and lower surfaces of the measured object from the distance A between the two probes can obtain the thickness H of the measured object. The obtained thickness H is transmitted to the stacking control system as real-time plate thickness data for the PLC to calculate. The surface material of the detachable flapping plate is polyurethane.

2. An adjustable stacking and beating device according to claim 1, characterized in that The adjusting screw is connected to the supporting mechanism through a threaded connection, the adjusting screw and the rear plate adjusting motor have synchronous wheels and are connected through a synchronous belt, the limit block is connected to the adjusting screw through a connecting pin, and the rear plate adjusting motor drives the adjusting screw to change the position of the limit block.

3. An adjustable stacking and beating device according to claim 1 or 2, characterized in that The limit block is a polyurethane limit block.

4. An adjustable stacking and beating device according to claim 1, characterized in that The thread of the adjusting screw is M18*2.5mm, the maximum adjustment stroke of the rear plate adjustment mechanism is 80mm, and the maximum adjustment angle is 13°.

5. An adjustable stacking and beating device according to claim 1, characterized in that The angle of the dovetail groove is 55°.

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