Sheet metal taking device

Abstract

The utility model discloses a metal sheet taking device, and belongs to the technical field of transportation machinery. The thin metal material taking device aims at solving the problem of thin metal material taking and comprises a material storage mechanism, a material conveying part, a position correcting mechanism and a thickness measuring mechanism. The material storage mechanism is used for storing metal sheets; the material conveying part moves the metal sheets at the preset position in the material storage mechanism to a calibration area; moving the metal sheet subjected to position correction and thickness measurement to a next station; the position correcting mechanism corrects the position of the metal sheet in the calibration area; and the thickness measuring mechanism measures the thickness of the metal sheet in the calibration area. According to the utility model, the metal sheets are transferred among the material storage mechanism, the calibration area and the next station through the material conveying part, the number and the thickness of the metal sheets on the calibration area are measured through the thickness measuring mechanism, and metal sheet batches with the thickness and the number reaching the standard are further screened out; and the standard metal sheets are subjected to high-precision position correction through the position correction mechanism, so that the position precision and consistency of the metal sheets during blanking are improved.

Description

Technical Field

[0001] This utility model relates to a metal sheet handling device, belonging to the field of transportation machinery technology. Background Technology

[0002] Metal sheets are used as welding or protective sheets in the production of many manufactured products. These metal sheets are typically small, lightweight, easily deformable, and prone to adhesion, making it difficult to physically grip them using traditional clamping equipment. To improve this, existing technologies have introduced adsorption devices with negative pressure or magnetic materials to replace traditional clamping equipment. These devices use adsorption to pick up the metal sheets, improving loading and unloading efficiency. However, due to the adhesion between the sheets, existing adsorption methods often result in inconsistent quantities of metal sheets picked up each time, leading to quality issues in subsequent processing. Therefore, existing adsorption devices cannot guarantee the accuracy of metal sheet picking.

[0003] Secondly, metal sheets are easily shifted during transportation and sorting on the production line due to external factors, such as airflow in the production workshop and vibrations of production and transportation equipment. These factors can cause the metal sheets to change position, making it impossible to accurately position and limit the metal sheets, further increasing the difficulty of gripping them. Utility Model Content

[0004] Purpose of the utility model: The purpose of this utility model is to overcome the shortcomings of the prior art and provide a metal sheet handling device. The device transfers metal sheets between the storage mechanism, the calibration area and the next station through the material conveying unit. The thickness measuring mechanism measures the quantity and thickness of the metal sheets in the calibration area to further screen out batches of metal sheets that meet the thickness and quantity standards. The device also uses a positioning mechanism to perform high-precision positioning of the qualified metal sheets to avoid positional deviation during metal sheet unloading and improve the positional accuracy and consistency of metal sheet unloading.

[0005] To solve the above-mentioned technical problems, this utility model is implemented using the following technical solution:

[0006] A metal sheet handling device, comprising:

[0007] Storage mechanism for storing thin metal sheets;

[0008] The material handling unit moves the metal sheet in the preset position in the storage mechanism to the calibration area; and moves the metal sheet that has been aligned and measured to the next station.

[0009] The alignment mechanism aligns the metal sheet in the calibration area.

[0010] The thickness measuring mechanism measures the thickness of the thin metal sheet in the calibration area.

[0011] In the above technical solution, the storage mechanism stores metal sheets, and the conveying unit is set up corresponding to the storage mechanism and the calibration area. It can adsorb and transfer metal sheets between the two and move the metal sheets that have been calibrated and thickness measured in the calibration area to the next station, avoiding the shortcomings of traditional physical clamping. The calibration mechanism and the thickness measuring mechanism perform quantity detection and position correction on the metal sheets in the calibration area, avoiding the problem of multiple picks due to the adhesion between metal sheets and the positional displacement of the metal sheets, and ensuring that the position of the metal sheets picked in the next process is consistent.

[0012] Optionally, the metal sheets are stacked and stored in the storage mechanism, and a top-loading mechanism is provided on the storage mechanism to push the top metal sheet in the stack to a preset position.

[0013] In the above technical solution, the storage mechanism initially limits the overlapping metal sheet piles, ensuring that the metal sheet piles are neatly placed layer by layer upwards after feeding; the top mechanism can push the metal sheet piles to a preset position as a whole, thereby initially and repeatedly limiting the position of the metal sheet piles in the storage mechanism.

[0014] Optionally, the top material mechanism includes a drive assembly installed at the end of the storage mechanism away from the conveying section;

[0015] The telescopic end of the drive component extends into the storage mechanism, pushing the top metal sheet in the metal sheet stack to the set position.

[0016] In the above technical solution, the driving component is a cylinder, and the power end is equipped with a piston rod. The power combination of the cylinder and the piston rod provides linear motion power for the metal sheet in the storage mechanism.

[0017] Optionally, the storage mechanism is provided with a movable base; the movable base is used to place the stack of metal sheets, and the telescopic end of the drive component drives the movable base to move.

[0018] In the above technical solution, the storage mechanism is equipped with a hollow storage bin. Both ends of the storage bin have openings that connect to the outside. The top feeding mechanism outputs power from the openings away from the conveying section to drive the movable base to move toward the conveying section. The storage bin is adapted to the shape of the metal sheet and has a certain depth, which can limit and regulate the metal sheet pile, keeping it neat during the feeding process. The movable base is used to support the metal sheet pile. Driven by the power component, the movable base can move up and down in the storage bin, causing the metal sheet pile to move toward the port of the conveying section until it reaches the preset position, realizing repeated feeding at the same height.

[0019] Optionally, the material conveying unit includes an adsorption head assembly and a first movable arm connected to the adsorption head assembly;

[0020] The adsorption head assembly is used to adsorb thin metal sheets;

[0021] The first movable arm is used to move the adsorption head assembly between the storage mechanism and the calibration area, and between the calibration area and the next station.

[0022] In the above technical solution, the first movable arm includes a lifting module connected to the adsorption head assembly and a transverse module connected to the lifting module. The lifting module drives the adsorption head assembly to rise and fall, used for picking up metal sheets that have reached a set position and loading / unloading metal sheets in the calibration area. The transverse module drives the lifting module and the adsorption head assembly to move laterally, used for transferring metal sheets between the storage mechanism and the calibration area. Under the two-axis linkage of the lifting module and the transverse module, the adsorption head assembly can move longitudinally towards the storage mechanism and the calibration area respectively to achieve picking up and loading, and can transfer metal sheets between the storage mechanism and the calibration area and between the calibration area and the next process.

[0023] Optionally, the adsorption head assembly is not limited to either a vacuum adsorption head or a magnetic adsorption head.

[0024] In the above technical solution, when the adsorption head assembly is a vacuum adsorption head, the adsorption head assembly is connected to the negative pressure device through a vacuum tube, and uses dual-point negative pressure adsorption and corrugated suction cup to fix the metal sheet under negative pressure. The amount of material picked up each time can be flexibly set by adjusting the magnitude of the adsorption force. The magnetic adsorption head is limited to the adsorption of metal sheets of specific materials, and its applicability is smaller than that of the vacuum adsorption head. However, the magnetic adsorption head has a better non-destructive adsorption effect than the vacuum adsorption head and will not cause deformation of the metal sheet.

[0025] Optionally, the calibration area is an area equipped with a negative pressure stage.

[0026] In the above technical solution, the negative pressure stage area is provided with several negative pressure holes, which are connected to a negative pressure device through vacuum tubes to deliver negative pressure airflow to the calibration area. Furthermore, these negative pressure holes are not limited to being evenly distributed within the calibration area; they can also be distributed along the boundary of the calibration area to create a negative pressure airflow or a negative pressure airflow band above and along the boundary of the calibration area. The negative pressure airflow in the calibration area causes the metal sheet placed on the calibration area to be adsorbed and confined. Simultaneously, the negative pressure airflow band isolates other airflows within the production workshop, preventing the metal sheet from shifting position or warping due to the influence of other airflows.

[0027] Optionally, the alignment mechanism includes a fixed alignment block and a movable alignment block disposed along the boundary of the calibration area, the movable alignment block being connected to an alignment drive assembly;

[0028] The alignment drive assembly is used to move the movable alignment block toward and away from the alignment area.

[0029] In the above technical solution, the fixed calibration block is set along the boundary of the calibration area, and the partially open boundary facilitates the feeding of the adsorption head assembly without interfering with the thickness measuring mechanism and facilitating its reciprocating movement. After the material is fed into the calibration area, the fixed calibration block and the movable calibration block work together to achieve high-precision correction of the metal sheet in the calibration area, avoiding positional deviation caused by negative pressure airflow, airflow generated by other equipment, or equipment vibration, and providing high-precision positioning and limiting of the metal sheet, reducing the difficulty of positioning the metal sheet during feeding. The correction drive assembly is a correction cylinder corresponding to the fixed calibration block. When the correction cylinder moves the movable calibration block away from the fixed calibration block, the open boundary of the calibration area is maintained, facilitating the movement of the thickness measuring mechanism and the material conveying unit, avoiding probe collision damage, and reducing the difficulty of feeding the suction cup. When the correction cylinder moves the movable calibration block closer to the fixed calibration block, the metal sheet placed in the calibration area is aligned and corrected, improving the positional accuracy of the material conveying unit in each feeding operation.

[0030] Optionally, the thickness measuring mechanism includes a probe head and a second movable arm connected to the probe head;

[0031] The probe head is electrically connected to the thickness gauge;

[0032] The second movable arm is used to drive the probe tip into contact with the metal sheet on the calibration area.

[0033] In the above technical solution, the second movable arm includes a probe lifting cylinder mounted on the platform plate and a probe pushing cylinder connected to the power end of the probe lifting cylinder. The probe pushing cylinder extends, driving the probe head to move above the metal sheet. The probe lifting cylinder drives the pushing cylinder and the probe head to descend, so that the probe head contacts the metal sheet. The probe head is electrically connected to the thickness gauge and can send a metal sheet thickness signal back to the thickness gauge. The thickness signal is used to estimate whether the quantity and thickness of the metal sheet being picked up meet the standards. After the thickness measurement is completed, the probe lifting cylinder is raised, and the probe pushing cylinder is retracted to prepare for the next batch of picking and thickness measurement. The above thickness measurement can filter out batches of picking that do not meet the thickness and quantity standards, improve the thickness and data accuracy of subsequent metal sheet processing, and further avoid quality problems in metal sheet picking and subsequent processing steps.

[0034] Beneficial effects: Compared with the prior art, this utility model has the following advantages:

[0035] By repeatedly pushing the metal sheet pile in the storage mechanism to a preset position, the quantity and thickness of the metal sheets adsorbed and transferred by the conveying unit each time can be kept relatively consistent. Then, the thickness measuring mechanism detects the quantity and thickness of the metal sheets in the calibration area, further screening out batches of metal sheets that do not meet the thickness and quantity standards. Finally, the alignment mechanism aligns the metal sheets that meet the picking standards, improving the positional accuracy of the metal sheet feeding and fundamentally solving the problem that existing adsorption devices cannot ensure the picking accuracy of metal sheets.

[0036] The storage mechanism can limit and regulate the overall stack of metal sheets, keeping them neat during the feeding process and ensuring that the position of the metal sheets continuously adsorbed by the conveying section is consistent. Furthermore, through the cooperation of the alignment mechanism and the calibration area, the position of the metal sheets will not be shifted due to interference from factors such as contact of the thickness measuring mechanism, other airflow, and equipment vibration. It also unifies the positional accuracy of the metal sheets facing the next process, thereby improving the subsequent processing quality of the metal sheets. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the metal sheet feeding device proposed in this embodiment;

[0038] Figure 2 This embodiment presents a schematic diagram of the material storage mechanism.

[0039] Figure 3 A schematic diagram of the calibration region is provided for this embodiment.

[0040] In the diagram: 11-Top material mechanism, 12-Storage mechanism, 13-Modible base, 14-Photoelectric sensor, 21-Adsorption head assembly, 22-Lifting module, 23-Transverse module, 31-Probe head, 32-Thickness gauge, 33-Probe pushing cylinder, 34-Probe lifting cylinder, 41-Correction cylinder, 42-Fixed correction block, 43-Negative pressure platform, 51-Metal sheet, 52-Platform plate. Detailed Implementation

[0041] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and should not be used to limit the scope of protection of the present invention. Example

[0042] This embodiment provides a metal sheet feeding device, such as... Figure 1 The system includes: a storage mechanism 12, a calibration area, a conveying unit, a alignment mechanism, and a thickness measuring mechanism, all mounted on a platform plate 52. The storage mechanism 12 stores stacks of overlapping metal sheets 51. A top-loading mechanism 11 is installed at the bottom of the storage mechanism 12, which lifts the top metal sheet 51 in the stack to a preset position. The alignment mechanism and the thickness measuring mechanism are respectively positioned relative to the calibration area. The conveying unit is located near the calibration area and the storage mechanism 12, and can adsorb and transfer metal sheets 51 between them and move the aligned and thickness-measured metal sheets 51 to the next station. The thickness measuring mechanism and the alignment mechanism respectively measure the thickness and align the metal sheets 51 in the calibration area to ensure that the quantity and thickness of the metal sheets 51 are maintained within a fixed range.

[0043] In this embodiment, the storage mechanism 12 provides initial positioning for the overlapping metal sheet 51 stacks, ensuring that the metal sheet 51 stacks are neatly placed layer by layer upwards after loading. The conveying unit is set up corresponding to the storage mechanism 12 and the calibration area, and can adsorb and transfer the metal sheet 51 between the two, avoiding the shortcomings of traditional physical clamping. The number and position of the metal sheet 51 on the calibration area are detected and corrected by the positioning mechanism and the thickness measuring mechanism, avoiding the problem of taking too many metal sheets 51 due to sticking between them and the positional deviation of the metal sheet 51 when unloading, ensuring the consistency of the metal sheet 51 picking and position in the next process.

[0044] Optionally, the top material mechanism 11 is installed on the platform plate 52, and the power end passes through the platform plate 52 to the storage mechanism 12. The top material mechanism 11 will push the top metal sheet 51 in the metal sheet 51 pile to the set position.

[0045] In this embodiment, the top material mechanism 11 can push the entire metal sheet 51 stack to a set position, thereby initially and repeatedly limiting the position of the metal sheet 51 stack in the storage mechanism 12.

[0046] Optionally, the top feeding mechanism 11 includes a cylinder and a piston rod; in this embodiment, the top feeding mechanism 11 uses a cylinder as a power source. The cylinder is mounted on the platform plate 52, and the power end of the cylinder faces the bottom opening of the storage mechanism 12, which can perform the top feeding action on the metal sheet 51 in the storage mechanism 12; its piston rod extends and retracts in the storage mechanism 12 and is connected to the movable base 13. The combination of cylinder and piston rod has the advantages of high speed and fast response speed.

[0047] Optionally, the storage mechanism 12 is provided with a movable base 13; the storage mechanism 12 is provided with a hollow storage bin, and the two ends of the storage bin are provided with openings to communicate with the outside. The top material mechanism 11 outputs power from the opening away from the material conveying part to drive the movable base 13 to move toward the material conveying part; in this embodiment, there are two storage bins and they are arranged symmetrically; the opening at one end of the storage bin is connected to the platform plate 52, and the opening at the other end faces upward toward the material conveying part. The inside of the storage bin is adapted to the shape of the metal sheet 51 and has a certain depth, which can limit and regulate the stack of metal sheets 51, so that it remains neat during the feeding process.

[0048] The movable base 13 is installed in the storage bin and is connected to the piston rod. The movable base 13 is used to support the metal sheet 51 material pile. The movable base 13 moves linearly along the storage bin under the drive of the top material cylinder, so that the metal sheet 51 material pile moves closer to the port of the conveying part until the set position, so as to achieve repeated feeding at the same height.

[0049] Optional, such as Figure 2The storage bin shown has slides on both sides that connect to the outside. The movable base 13 is connected to a slider that fits the slide gap, which is used to visualize the displacement of the movable base 13 and the remaining amount of the metal sheet 51.

[0050] The end of the chute near the material conveying section is also equipped with a photoelectric sensor 14, which is used to send a signal to an external receiver that the metal sheet 51 has reached the set position.

[0051] In this embodiment, the actual situation of the metal sheet 51 pile can be observed in real time through the slide; the photoelectric sensor 14 is used to monitor the highest point position of the metal sheet 51 in the tank. When the light beam emitted by the photoelectric sensor 14 to the outside is blocked, it senses that the metal sheet 51 has reached the set position, thereby triggering the top material mechanism 11 to stop and the material conveying part to start, ensuring that the height of the metal sheet 51 is relatively consistent each time it is picked up.

[0052] Optionally, the material conveying unit includes an adsorption head assembly 21 and a first movable arm. The first movable arm includes a lifting module 22 and a transverse module 23. The lifting module 22 is connected to the adsorption head assembly 21, and the transverse module 23 is connected to the lifting module 22. Both the transverse module 23 and the lifting module 22 are combinations of a motor and a linear screw. The transverse module 23 is composed of a first motor mounted on the platform plate 52, a first screw mounted on the platform plate 52, and a first slider mounted on the first screw. The first motor is connected to the first screw in a transmission connection, and the power of the first motor drives the first slider on the first screw to perform linear translational motion.

[0053] The lifting module 22 is composed of a second lead screw mounted on the first slider and a second motor connected to the second lead screw. The second lead screw is equipped with a second slider, which is connected to the adsorption head assembly 21 through a bracket. The power of the second motor drives the second slider on the second lead screw to move vertically up and down. Thus, the lifting module 22 drives the adsorption head assembly 21 to move up and down, enabling it to pick up the metal sheet 51 that has reached the set position and to load and unload the metal sheet 51 in the calibration area. The transverse module 23 drives the lifting module 22 and the adsorption head assembly 21 to move laterally, enabling it to transfer the metal sheet 51 between the storage mechanism 12, the calibration area, and the next station.

[0054] Optionally, the adsorption head assembly 21 adopts the vacuum adsorption principle. The adsorption head assembly 21 is connected to the negative pressure device through a vacuum tube, and uses dual-point negative pressure adsorption and corrugated suction cups to fix the metal sheet 51 under negative pressure. The quantity of material taken each time can be flexibly set by adjusting the magnitude of the adsorption force. Under the two-axis linkage of the lifting module 22 and the transverse module 23, the vacuum adsorption head assembly 21 can move longitudinally towards the storage mechanism 12 and the calibration area respectively to realize material taking and loading, and can transfer the metal sheet 51 between the storage mechanism 12 and the calibration area. In this embodiment, there are four corrugated suction cups, which are divided into two groups to fix the two groups of metal sheets 51 at two points respectively, and transfer the metal sheet 51 between the two storage bins, the two calibration areas and the next station.

[0055] Optional, such as Figure 3 The calibration area shown is installed on the platform plate 52. The calibration area is the area where a negative pressure stage 43 is installed.

[0056] The calibration area is equipped with several negative pressure holes, which are connected to a negative pressure device through vacuum tubes to deliver negative pressure airflow to the calibration area.

[0057] In this embodiment, several negative pressure holes are evenly distributed in the calibration area to create a negative pressure airflow or negative pressure airflow band above the calibration area. The negative pressure airflow in the calibration area causes the metal sheet 51 placed on the calibration area to be adsorbed and limited, preventing the metal sheet 51 from shifting position or warping due to other airflow or external force.

[0058] Optionally, the alignment mechanism includes a fixed alignment block 42, a movable alignment block, and an alignment drive assembly 41; the fixed alignment block 42 is mounted on the negative pressure stage 43 along the boundary of the calibration area, and the alignment drive assembly is an alignment cylinder 41, which is set corresponding to the fixed alignment block 42 and mounted on the platform plate 52; the movable alignment block is connected to the power end of the alignment cylinder 41; the movable alignment block moves toward or away from the calibration area under the drive of the alignment cylinder 41.

[0059] In this embodiment, the movable calibration block and the fixed calibration block 42 are arranged correspondingly. When the correction cylinder 41 moves the movable calibration block away from the fixed calibration block 42, it retains an open boundary for the calibration area, which facilitates the movement of the thickness measuring mechanism and the material conveying part, avoids probe collision damage, and reduces the difficulty of feeding material from the suction cup. When the correction cylinder 41 moves the movable calibration block closer to the fixed calibration block 42, it aligns and corrects the metal sheet 51 placed in the calibration area, ensuring that the material conveying part picks up the material in the same position each time.

[0060] In this embodiment, there are three fixed calibration blocks 42. The longer fixed calibration block 42 is installed parallel to the boundary of the calibration area, and the other two fixed calibration blocks 42 are perpendicular to the longer fixed calibration block 42, thereby separating two calibration areas. The two perpendicularly opposite fixed calibration blocks 42 respectively close part of the boundary of each calibration area. The side of the calibration area away from the fixed calibration block 42 is an open boundary, which can facilitate the feeding of the adsorption head assembly 21 without interfering with the thickness measuring mechanism and facilitating its reciprocating movement. After feeding, the fixed calibration block 42 cooperates with the movable calibration block to correct the metal sheet 51 on the calibration area, avoiding the positional displacement of the metal sheet 51 caused by negative pressure airflow, airflow generated by other equipment, or equipment vibration, thereby ensuring that the metal sheet 51 has no positional displacement or curling during the correction and thickness measurement process, reducing the adsorption and positioning difficulty of feeding the metal sheet 51.

[0061] Optionally, the thickness measuring mechanism includes a probe head 31 and a second movable arm; the second movable arm includes a probe lifting cylinder 34 and a probe pushing cylinder 33; the probe lifting cylinder 34 is mounted on the platform plate 52, the probe pushing cylinder 33 is connected to the power end of the probe lifting cylinder 34, and the probe head 31 is mounted on the power end of the probe pushing cylinder 33; the probe head 31 is set to correspond to the calibration area and is electrically connected to the thickness gauge 32.

[0062] In this embodiment, the probe pushing cylinder 33 extends, driving the probe head 31 to move above the metal sheet 51. The probe lifting cylinder 34 drives the pushing cylinder and the probe head 31 to descend, so that the probe head 31 contacts the metal sheet 51. The probe head 31 is electrically connected to the thickness gauge 32 and can send a thickness signal of the metal sheet 51 back to the thickness gauge 32. The thickness signal is used to estimate whether the quantity and thickness of the metal sheet 51 being taken meet the standards. After the thickness measurement is completed, the probe lifting cylinder 34 is raised, and the probe pushing cylinder 33 is retracted to prepare for the next batch of material taking and thickness measurement. The above-mentioned thickness measurement can filter out batches of material taking that do not meet the standards in terms of thickness and quantity, improve the material taking accuracy, and avoid quality problems in the taking of metal sheet 51 and subsequent processing steps.

[0063] Working principle:

[0064] Before starting, the storage mechanism 12, the conveying part, the alignment mechanism and the thickness measuring mechanism are all in their positions, and the adsorption head assembly 21 is opposite to the storage bin; and the stack of overlapping metal sheets 51 is placed into the storage bin, with the height of the stack of metal sheets 51 not exceeding the photoelectric sensor 14.

[0065] During feeding, the cylinder of the top feeding mechanism 11 is activated, causing the movable base 13 to rise in the storage bin, pushing the top metal sheet 51 of the metal sheet 51 stack to a preset position. The photoelectric sensor 14 sends a signal, causing the top feeding mechanism 11 to stop and the lifting module 22 to be activated. The power of the second motor drives the second slider on the second lead screw to descend, so that the adsorption head assembly 21 approaches the storage bin to pick up the metal sheet 51 that has reached the preset position. After the adsorption head assembly 21 adsorbs the metal sheet 51, the transverse module 23 is activated. The power of the first motor drives the first slider on the first lead screw to move horizontally above the calibration area. The power of the second motor drives the second slider on the second lead screw to descend a second time until the metal sheet 51 contacts the negative pressure platform 43.

[0066] At this time, the negative pressure device is activated, delivering negative pressure airflow to the negative pressure hole, so that the negative pressure platform 43 receives and fixes the metal sheet 51 under negative pressure through the negative pressure airflow. The negative pressure of the adsorption head assembly 21 stops, and the adsorption head lifting module 22 is raised away from the negative pressure platform 43.

[0067] The probe pushing cylinder 33 in the thickness measuring mechanism extends, controlling the probe head 31 to move above the metal sheet 51. The probe lifting cylinder 34 descends, causing the probe head 31 to contact the metal sheet 51 and send a thickness signal of the metal sheet 51 back to the thickness gauge 32. The thickness signal is used to estimate the quantity and thickness of the metal sheet 51 being measured. After the thickness measurement is completed, the probe lifting cylinder 34 is raised, the probe pushing cylinder 33 is retracted, and the thickness gauge 32 is prepared for the next batch of material to be measured.

[0068] After thickness measurement, the correction mechanism begins to correct the metal sheets 51 that meet the quantity and thickness standards. The negative pressure hole stops applying negative pressure, and when the correction cylinder 41 moves the movable correction block closer to the fixed correction block 42, the movable and fixed correction blocks 42 together align and correct the metal sheets 51 placed in the calibration area. Alternatively, metal sheets 51 that meet the quantity and thickness standards can be directly unloaded without requiring correction by the correction mechanism.

[0069] After the metal sheet 51 is aligned, the negative pressure hole opens to create negative pressure. When the alignment cylinder 41 moves the movable alignment block away from the fixed alignment block 42, it retains an open boundary for the calibration area, which facilitates subsequent thickness measurement and loading / unloading of materials by the material handling department. Example

[0070] Based on the same technical concept as Embodiment 1, this embodiment provides a metal sheet feeding device, including: an upper storage mechanism, a conveying unit, a alignment mechanism, and a thickness measuring mechanism; the storage mechanism stores overlapping metal sheet stacks, and the top material mechanism pushes the metal sheet stacks outward to a set position; the alignment mechanism and the thickness measuring mechanism are respectively arranged relative to the calibration area; the conveying unit is arranged close to the calibration area and the storage mechanism, and can adsorb and transfer metal sheets between the two and move the aligned and thickness-measured metal sheets to the next station; the thickness measuring mechanism and the alignment mechanism respectively measure the thickness and align the metal sheets in the calibration area to ensure that the number and thickness of the metal sheets fed are maintained within a fixed value.

[0071] Optionally, the feeding mechanism is a combination of a motor and a screw. The screw is located in the storage bin and connected to the four sides of the movable base. Compared with the cylinder combination, this can further improve the accuracy of the movable base's displacement.

[0072] Optionally, there may be two or more storage bins, and the storage bins may be made of visual materials to visualize the displacement of the movable base and the remaining amount of metal sheet stock.

[0073] Optionally, the adsorption head assembly uses a magnetic adsorption head. The magnetic adsorption head is limited to the adsorption of thin metal sheets of specific materials, and its applicability is smaller than that of the vacuum adsorption head. However, the magnetic adsorption head has a better non-destructive adsorption effect than the vacuum adsorption head and will not cause deformation of the thin metal sheet.

[0074] Optionally, several negative pressure holes can also be distributed and evenly distributed along the boundary of the calibration area to create negative pressure airflow and negative pressure airflow bands above and at the boundary of the calibration area. The negative pressure airflow bands at the boundary are used to isolate other airflows in the production workshop to prevent the metal sheet from shifting position or warping due to the influence of other airflows.

[0075] In summary, this invention, by repeatedly pushing the metal sheet pile in the storage mechanism to a preset position, ensures that the quantity and thickness of the metal sheets adsorbed and transferred by the conveying unit are not significantly different each time. Furthermore, a thickness measuring mechanism detects the quantity and thickness of the metal sheets in the calibration area, further filtering out batches of metal sheets that do not meet the thickness and quantity standards. Finally, a positioning mechanism corrects the metal sheets that meet the picking standards, improving the positional accuracy of the metal sheets and fundamentally solving the problem that existing adsorption devices cannot ensure the picking accuracy of metal sheets. The storage mechanism can limit and regulate the overall metal sheet pile, keeping it neat during the loading process and ensuring the uniform position of the metal sheets continuously adsorbed by the conveying unit. The coordination of the positioning mechanism and the calibration area prevents the metal sheets from shifting position due to interference from factors such as the thickness measuring mechanism's contact, other airflow, and equipment vibration, and ensures consistent positional accuracy of the metal sheets facing the next process, thereby improving the subsequent processing quality of the metal sheets.

[0076] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0077] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

Claims

1. A metal sheet take-off device characterized by, The application relates to a metal sheet calibrating device. The device comprises: a storage mechanism for storing metal sheets; a material conveying unit for moving the metal sheets in a preset position of the storage mechanism to a calibration area; a next station for moving the metal sheets after position correction and thickness measurement to the next station; a position correction mechanism for correcting the position of the metal sheets in the calibration area; 2. The metal flake dispensing apparatus of claim 1, wherein, a thickness measurement mechanism for measuring the thickness of the metal sheets in the calibration area.

3. The metal flake dispensing apparatus of claim 2, wherein, The metal sheets are stacked in the storage mechanism; a top material mechanism is arranged on the storage mechanism, and the top material mechanism is used for pushing the topmost metal sheet in the metal sheet stack to a preset position.

4. A metal flake retrieval device according to any one of claims 2 to 3, wherein, The top material mechanism comprises a driving assembly arranged at the end of the storage mechanism far from the material conveying unit; the telescopic end of the driving assembly extends into the storage mechanism and pushes the topmost metal sheet in the metal sheet stack to the preset position.

5. The sheet metal gleaning apparatus of claim 1, wherein, An activity base is arranged in the storage mechanism; the activity base is used for placing the metal sheet stack, and the telescopic end of the driving assembly drives the activity base to move. The material conveying unit comprises a suction head assembly and a first movable arm connected with the suction head assembly. The suction head assembly is used for sucking the metal sheets.

6. The metal flake dispensing apparatus of claim 5, wherein, The first movable arm is used for moving the suction head assembly between the storage mechanism and the calibration area and between the calibration area and the next station.

7. The sheet metal gleaning apparatus of claim 1, wherein, The suction head assembly is not limited to any one of a vacuum suction head and a magnetic suction head.

8. The metal flake dispensing apparatus of claim 1 or 7, wherein, The calibration area is an area provided with a negative pressure loading platform.

9. The sheet metal gleaning apparatus of claim 1, wherein, The position correction mechanism comprises fixed correction blocks and movable correction blocks arranged along the boundary of the calibration area; the movable correction blocks are connected with a position correction driving assembly, and the position correction driving assembly is used for driving the movable correction blocks to move towards and away from the calibration area. The thickness measurement mechanism comprises a probe head and a second movable arm connected with the probe head. The probe head is electrically connected with a thickness gauge. The second movable arm is used for driving the probe head to contact the metal sheets on the calibration area.

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