A cotton receiving device

Abstract

The utility model relates to the technical field of composite board production equipment, especially relates to a cotton joint device, first support and second support are fixed in the roller conveyor, first support top fixedly connected first stand, second support top fixedly connected second stand, first stand and second stand top end common support crossbeam, the cylinder with guide rod is equipped with below crossbeam, the cylinder with guide rod piston rod end connects cotton right palm, one side of crossbeam installs linear guide rail, and the slider is slidably connected on linear guide rail, one side of slider is with mini cylinder piston rod end screw connection, and the other side fixedly connected cotton left palm, and cotton left palm and cotton right palm are oppositely arranged to clamp rock wool. The utility model solves the technical problem that the existing technology composite board production line rock wool switching process has low efficiency, structural stability is insufficient and is easily polluted by dust.

Description

Technical Field

[0001] This utility model relates to the technical field of composite board production equipment, and in particular to a cotton receiving device. Background Technology

[0002] Composite panel production lines have been developing towards automation and high efficiency in recent years. The rock wool transfer process, as a key connecting step in the production line, directly affects the overall production continuity and product quality in terms of stability and efficiency. However, existing technologies have revealed multiple shortcomings in practical applications: Low efficiency of manual transfer: The low labor productivity of rock wool transfer in domestic production lines has become a bottleneck restricting overall production capacity.

[0003] Dustproof design deficiency: Traditional mechanical structures are not optimized for rock wool dust environments. Dust intrusion into the guide rails leads to accelerated wear of sliding parts, seriously affecting the operating accuracy of the equipment.

[0004] Insufficient safety protection: Most devices lack effective limit protection mechanisms, and the linear guide slider is prone to detachment during high-speed operation, which poses a risk of component disintegration and production line shutdown. Utility Model Content

[0005] To address the technical problems of low efficiency, insufficient structural stability, and susceptibility to dust contamination in existing composite board production lines during rock wool transfer, this utility model provides a rock wool receiving device, comprising: A first support and a second support are fixed to the roller conveyor. The top of the first support is fixedly connected to a first column, and the top of the second support is fixedly connected to a second column. The tops of the first column and the second column together support a crossbeam. A cylinder with a guide rod is provided below the crossbeam. The piston rod end of the cylinder with the guide rod is connected to the right hand for receiving cotton. A linear guide rail is installed on one side of the crossbeam. A slider is slidably connected to the linear guide rail. One side of the slider is threadedly connected to the piston rod end of the mini cylinder, and the other side is fixedly connected to the left hand for receiving cotton. The left hand for receiving cotton and the right hand for receiving cotton are arranged opposite each other to clamp the rock wool.

[0006] Furthermore, the mini cylinder has a diameter of 20mm and a stroke of 50mm.

[0007] Furthermore, the linear guide rail is provided with limit blocks at both ends to limit the sliding stroke of the slider.

[0008] Furthermore, the cylinder with guide rod is provided with a cover, which is fixed to the bottom of the crossbeam by bolts.

[0009] Furthermore, the clamping surfaces of the left and right palms receiving the rock wool are made of polyurethane elastomer with a Shore A hardness of 85-90, and the surface is provided with diamond-shaped anti-slip textures with a texture depth of 0.5-1mm and a texture spacing of 3mm, in order to increase the friction with the rock wool.

[0010] Furthermore, the linear guide rail is fixed to the lower surface of the crossbeam by M8×30mm high-strength bolts, the bolt preload torque is 15-20Nm, and the flatness error of the contact surface between the guide rail and the crossbeam is ≤0.05mm.

[0011] Furthermore, the inner side of the limit blocks at both ends of the linear guide is provided with a diffuse reflection photoelectric sensor with a detection distance of 5-15mm and a response time of ≤10ms, which is used to monitor the extreme position of the slider in real time and trigger the cylinder to stop urgently.

[0012] Furthermore, the two sides of the cover are provided with elastic buckles with an opening width of 12mm and a thickness of 2mm. The cover and the crossbeam can be quickly disassembled by pressing the buckles, and the disassembly time is ≤30s.

[0013] Furthermore, the crossbeam has a total length of 500mm, a straightness tolerance of ≤0.1mm / m along the length direction, a cross-sectional dimension tolerance of ±0.03mm, and is made of 45# steel with heat treatment and a hardness of HB220-250.

[0014] Furthermore, the intake circuit of the mini cylinder is connected in series with a pneumatic pressure regulating valve, which is set to a working pressure range of 0.4-0.6MPa. When the system pressure exceeds 0.7MPa, the pressure regulating valve automatically exhausts to 0.5MPa, and the exhaust response time is ≤0.5s.

[0015] Compared with the prior art, the beneficial effects of this utility model are: By setting polyoxymethylene limit blocks at both ends of the linear guide rail, the buffer amount is strictly controlled to ≤2mm. Combined with the Omron E3T diffuse reflection photoelectric sensor (detection distance 10mm, response time ≤10ms), a dual protection of physical and photoelectric properties is formed, reducing the impact energy of the slider from 2.3J in the traditional device to 0.5J.

[0016] Furthermore, the left and right palm gripping surfaces for receiving rock wool are made of Shore A 85-90 hardness polyurethane elastomer with laser-engraved 0.5-1mm deep diamond patterns (3mm spacing), resulting in a wear rate of only 0.03mm³ / m, which is 5 times more wear-resistant than traditional rubber materials. After 100 gripping tests at a slider speed of 300mm / s, the anti-slip rate reached 100% (compared to 2 slips in 10 tests for traditional devices), ensuring that there is no slippage during high-speed rock wool transfer.

[0017] Furthermore, the cover is made of 0.8mm cold-rolled steel plate and bent into shape, with PA66+30% glass fiber elastic buckles integrated on both sides (12mm opening width, 2mm thickness) to achieve quick disassembly within 30 seconds.

[0018] Furthermore, the crossbeam is made of 45# steel with heat treatment (hardness HB220-250), with a straightness tolerance of ≤0.1mm / m for a total length of 500mm, and a cross-sectional dimensional tolerance controlled within ±0.03mm. According to GB / T 1184-1996 standard for shape and position tolerances, the flatness error of the guide rail mating surface is ≤0.05mm. After assembly with the linear guide rail, the parallelism error is measured by a laser interferometer and is ≤0.03mm / m (0.15mm / m for traditional devices, an 80% improvement), ensuring long-term operational accuracy.

[0019] Furthermore, the mini cylinder's air intake circuit is connected in series with an SMC AR20 series pressure regulating valve, which sets the working pressure range to 0.4-0.6MPa. When overpressure occurs (>0.7MPa), it automatically vents to 0.5MPa with a response time of ≤0.5s. Under an abnormal pressure of 0.8MPa, it reduces the clamping force from 60N to 50N within 400ms, preventing excessive compression damage to the rock wool. The failure rate of the pneumatic system is reduced from the traditional no-protection device to 0. Attached Figure Description

[0020] Figure 1 This is a rear view of the cotton receiving device provided by this utility model; Figure 2 This is a front view of the cotton receiving device provided by this utility model; In the picture: 1-Manipulator; 2-Roller conveyor; 3-First support; 4-First column; 5-Pin; 6-Hinge; 7-Linear guide rail stop; 8-Cover; 9-Left hand receiving cotton; 10-First rock wool; 11-Second rock wool; 12-Right hand receiving cotton; 13-Cylinder with guide rod; 14-Second column; 15-Second support; 16-Crossbeam; 17-Cylinder hinge; 18-Mini cylinder; 19-Linear guide rail. Detailed Implementation

[0021] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0022] Please see Figure 1 - Figure 2 , Figure 1 This is a rear view of the cotton receiving device provided by this utility model; Figure 2 This is a front view of the cotton receiving device provided by this utility model; This utility model embodiment provides a cotton receiving device, including: The first support 3 and the second support 15 are symmetrically fixed to the ground foundation on both sides of the roller conveyor 2 by expansion bolts. Their tops are rigidly connected to the lower ends of the first column 4 and the second column 14 by welding. The tops of the first column and the second column are bolted to the crossbeam 16 by flanges to form a rectangular support frame. The verticality error of the frame is ≤1mm / m to ensure the overall structural stability.

[0023] The linear guide rail 19 is fixed to the left side of the lower surface of the crossbeam 16 by T-bolts, and its length direction is perpendicular to the conveying direction of the roller conveyor 2. The slider slides with the linear guide rail through a dovetail groove structure. The right side of the slider is connected to the back of the cotton receiving left palm 9 by an internal hex bolt, and the left side is rigidly connected to the end of the piston rod of the mini cylinder 18 by a threaded joint, so as to realize the cotton receiving left palm lateral movement along the guide rail.

[0024] The cylinder 13 with guide rod is mounted on the right side of the lower surface of the crossbeam 16 via a hinge seat 6. The end of the piston rod is hinged to the cotton receiving right palm 12 via a pin 5. The clearance fit between the guide rod and the cylinder body ensures that the cotton receiving right palm only produces vertical displacement and avoids lateral displacement.

[0025] The cover 8 is made of 0.8mm cold-rolled steel plate and bent into shape. It is fixed to the bottom of the crossbeam 16 at the position corresponding to the cylinder 13 with guide rod by countersunk bolts. The side of the cover has louvered ventilation openings, which not only prevent rock wool dust from entering the moving parts of the cylinder, but also ensure heat dissipation.

[0026] The linear guide rail 19 has limit blocks 7 fixed at both ends by set screws. The blocks are made of polyoxymethylene and have a buffer amount of ≤2mm when in contact with the slider, which effectively absorbs impact energy and avoids rigid collisions.

[0027] Power transmission path: Mini cylinder 18 drives → slider slides along linear guide rail 19 → cotton receiving left palm 9 moves laterally; cylinder 13 with guide rod drives → cotton receiving right palm 12 moves vertically; the coordinated action of the left and right palms realizes the clamping and release of rock wool, and the two execution units realize the synchronization of electrical signals through the PLC control system to ensure coordinated and consistent action.

[0028] Specifically, the clamping surfaces of the left palm (9) and right palm (12) for receiving cotton are made of polyurethane elastomer with a Shore A 88 hardness, which is within the industry standard range of 85-90A for heavy-duty AGV wheels. The surface is laser-engraved with diamond-shaped anti-slip patterns, with a pattern depth of 0.8mm, a spacing of 3mm, and a surface roughness of Ra 1.6μm.

[0029] Specifically, the mold is formed by electrical discharge machining to ensure the accuracy of the texture; the elastomer is integrally formed by injection molding to avoid performance degradation caused by secondary processing.

[0030] Specifically, this design increases the clamping force by 20%, from 40N to 48N, and prevents rock wool from slipping off at a slider speed of 300mm / s, thus solving the slippage problem of traditional smooth surfaces during high-speed transitions.

[0031] Specifically, the linear guide rail 19 is fixed to the lower surface of the crossbeam 16 using M8×30mm high-strength grade 8.8 bolts with a bolt spacing of 100mm and a preload torque set to 18N·m, referring to the T-bolt connection standard in the mechanical design manual. The contact surfaces between the guide rail and the crossbeam are precision ground, with a flatness error ≤0.05mm / m.

[0032] Specifically, a torque wrench is used to pre-tighten the guide rail in three even stages: the first stage is 50% torque (9 N·m), the second stage is 80% torque (14.4 N·m), and the final stage is 100% torque (18 N·m), in order to avoid deformation of the guide rail caused by local stress concentration.

[0033] Specifically, after 100,000 continuous operations at a slider speed of 300 mm / s, the bolt loosening amount is ≤0.02 mm, and the guide rail parallelism change is ≤0.03 mm / m, meeting the requirements of GB / T 39526-2024 Industrial Automation System Guide Rail Installation Specification.

[0034] Specifically, Omron E3T series diffuse reflection photoelectric sensors are embedded inside the limit blocks 7 at both ends of the linear guide rail 19. The detection distance is set to 10mm and is adjustable within a range of 5-15mm, with a response time ≤10ms. The sensor spot diameter is ≤5mm, ensuring stable identification of the slider position in dusty environments.

[0035] Specifically, when the slider is 10mm away from the stop, the sensor sends a signal, and the PLC controls the mini cylinder 18 to decelerate to 50mm / s, buffering the impact energy to below 0.5J. The impact energy of the traditional non-deceleration scheme is 2.3J.

[0036] Specifically, the sensor 7 is installed in the center hole inside the limit block 7 at both ends of the linear guide rail 19, with a distance of 10mm from the initial position of the slider, and the detection spot points to the reflector on the side of the slider.

[0037] Specifically, the sensor and control system adopts a dual-channel redundancy design, triggering an emergency stop in case of a single point of failure, with a shutdown response time of ≤200ms, which complies with GB 5226.1 General Standard for Mechanical Safety.

[0038] Specifically, the two sides of the cover 8 are integrally molded with elastic buckles using an injection molding process. The buckle opening is 12mm wide and 2mm thick, and the material is PA66 + 30% glass fiber, with an elastic deformation range of ±0.5mm. The connection surface between the cover and the crossbeam 16 is equipped with a sealing strip, achieving a dustproof rating of IP54.

[0039] Specifically, the elastic buckles are integrated on both sides of the cover 8, with three evenly distributed on each side, and the buckle openings face the corresponding slots of the crossbeam 16.

[0040] Specifically, when disassembling, press both sides of the buckle to disengage it from the crossbeam slot, and the disassembly time should be ≤30s; when installing, align the positioning pin and press the cover, and the buckle will automatically reset and lock.

[0041] Specifically, after 1000 repeated disassembly tests, the elasticity attenuation of the buckle is ≤10%, which meets the requirements of GB / T 2423.23-2019 Environmental Testing Part 23: Temperature Change Test Na and Nb clauses.

[0042] Specifically, the crossbeam 16 is made of 45# steel with a hardness of HB235 after quenching and tempering. It is 500mm long and has a straightness tolerance of ≤0.1mm / m along the length direction, referring to the 5th grade tolerance of GB / T 1184-1996 standard. The cross-sectional dimensions are 100×50mm with a tolerance of ±0.03mm.

[0043] The machining process involves rough milling, tempering, fine grinding, and aging treatment to eliminate internal stress, achieving a surface roughness of Ra 0.8 μm. Key processes are inspected online using a coordinate measuring machine to ensure all dimensional tolerances are met.

[0044] Specifically, after assembly with the linear guide rail 19, the parallelism error of the guide rail is ≤0.02mm / 1000mm when tested by a laser interferometer, which meets the installation requirements of precision guide rail.

[0045] Specifically, the intake circuit of the mini cylinder 18 is connected in series with an SMC AR20 series pressure regulating valve, which sets the working pressure range to 0.4-0.6MPa. When the system pressure exceeds 0.7MPa, the pressure regulating valve automatically vents to 0.5MPa, with an venting response time of ≤0.5s.

[0046] Specifically, the pressure regulating valve is installed on the valve island at the front end of the air inlet of the mini cylinder 18, with the pressure gauge dial facing the operating surface for easy observation.

[0047] Specifically, the valve assembly integrates a pressure gauge with an accuracy of ±0.02MPa, displaying the working pressure in real time; it is set to link the pressure sensor with the PLC, triggering an audible and visual alarm and cutting off the gas supply when overpressure occurs.

[0048] Specifically, under a working pressure of 0.6MPa, the maximum clamping force of the rock wool is 60N. When the pressure rises abnormally to 0.8MPa, the pressure regulating valve reduces the pressure to 0.5MPa within 0.4s, and the clamping force drops back to 50N, thus avoiding structural damage caused by excessive compression of the rock wool.

[0049] Specifically, the intake circuit of the mini cylinder 18 is connected in series with an SMC AR20 series pressure regulating valve. The pressure regulating valve is installed on the valve island at the front end of the mini cylinder's intake port and is connected via an air pipe. The pressure gauge faces the operating surface. Example

[0050] Robotic arm 1 picks up two pieces of rock wool from the rock wool stack. A receiving device catches one piece, while the other is directly transported away by roller conveyor 2. Supports A-3 and B-15 are fixed to roller conveyor 2 for easy installation of the receiving device. The first column-4 effectively supports the crossbeam-16 and others. Pin-5, hinge-6, and cylinder hinge-17 are used to fix the mini cylinder-18 and assist its operation. The linear guide rail-19 supports the receiving left hand-9, allowing it to move freely within the linear guide rail. The linear guide rail stop-7 is used to position the movement limits, preventing the slider in the linear guide rail-19 from running out of control and causing the linear guide rail assembly to disintegrate. The cover-8 effectively prevents rock wool dust from falling onto the linear guide rail-19. The first rock wool-10 and the second rock wool-11 are used for transporting workpieces. The right and left hand-clip rock wool receiving mechanisms (Right Hand-12 and Left Hand-9) clamp the rock wool using cylinders (i.e., catch one of the two pieces of rock wool grabbed by the robotic arm). The second column-14 supports the new thin-type guide rod cylinder-13, which, using a wide-range cylinder with a guide rod, offers advantages such as more stable and reliable operation. Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cotton receiving device, characterized in that, It includes a first support and a second support fixed to the roller conveyor. The top of the first support is fixedly connected to a first column, and the top of the second support is fixedly connected to a second column. The tops of the first column and the second column together support a crossbeam. A cylinder with a guide rod is provided below the crossbeam. The piston rod end of the cylinder with the guide rod is connected to the right hand for receiving cotton. A linear guide rail is installed on one side of the crossbeam. A slider is slidably connected to the linear guide rail. One side of the slider is threadedly connected to the piston rod end of the mini cylinder, and the other side is fixedly connected to the left hand for receiving cotton. The left hand for receiving cotton and the right hand for receiving cotton are arranged opposite each other to clamp the rock wool.

2. The cotton receiving device according to claim 1, characterized in that, The mini cylinder has a diameter of 20mm and a stroke of 50mm.

3. The cotton receiving device according to claim 1, characterized in that, The linear guide rail is equipped with limit blocks at both ends to limit the sliding stroke of the slider.

4. The cotton receiving device according to claim 1, characterized in that, The cylinder with guide rod is equipped with a cover, which is fixed to the bottom of the crossbeam by bolts.

5. The cotton receiving device according to claim 1, characterized in that, The clamping surfaces of the left and right palms for receiving rock wool are made of polyurethane elastomer with a Shore A hardness of 85-90. The surface is provided with diamond-shaped anti-slip textures with a texture depth of 0.5-1mm and a texture spacing of 3mm, which are used to increase the friction with rock wool.

6. The cotton receiving device according to claim 1, characterized in that, The linear guide rail is fixed to the lower surface of the crossbeam by M8×30mm high-strength bolts. The bolt preload torque is 15-20Nm, and the flatness error of the contact surface between the guide rail and the crossbeam is ≤0.05mm.

7. The cotton receiving device according to claim 3, characterized in that, The linear guide rail has diffuse reflection photoelectric sensors on the inner side of the limit blocks at both ends. The detection distance is 5-15mm and the response time is ≤10ms. These sensors are used to monitor the extreme position of the slider in real time and trigger the cylinder to stop in an emergency.

8. The cotton receiving device according to claim 4, characterized in that, The cover is provided with elastic buckles on both sides of the edge. The buckle opening is 12mm wide and 2mm thick. The cover can be quickly disassembled from the crossbeam by pressing the buckle. The disassembly time is ≤30s.

9. The cotton receiving device according to claim 1, characterized in that, The crossbeam has a total length of 500mm, a straightness tolerance of ≤0.1mm / m along its length, a cross-sectional dimension tolerance of ±0.03mm, and is made of 45# steel with a tempering treatment and a hardness of HB220-250.

10. The cotton receiving device according to claim 1, characterized in that, The mini cylinder's intake circuit is connected in series with a pneumatic pressure regulating valve, which is set to a working pressure range of 0.4-0.6MPa. When the system pressure exceeds 0.7MPa, the pressure regulating valve automatically vents to 0.5MPa, with an exhaust response time of ≤0.5s.

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