Blank loading device

Abstract

This utility model provides a blank loading device, which includes: a blank hopper and a first detection mechanism; the blank hopper includes multiple partitions, and adjacent partitions have receiving portions capable of positioning and accommodating blanks; the first detection mechanism includes multiple telescopic components, each corresponding to one of the receiving portions, and the telescopic components have a first position and a second position; when the telescopic component is in the first position, it is located outside the receiving portion; when the telescopic component is in the second position, it is at least partially located inside the receiving portion; the blank includes a detection mark, and when the telescopic component is in the second position, it is configured to push the blank out when the detection mark is misaligned, or to trigger an alarm under the pressure of the blank, thereby improving the technical problem of the blank being easily placed backwards during the blank loading process.

Description

Technical Field

[0001] This utility model relates to the field of packaging technology, specifically to a box blank feeding device. Background Technology

[0002] With the rapid development of the lithium battery industry, the demand for corrugated cardboard boxes has surged. Traditional manual packaging is inefficient and costly, making it difficult to meet market demand. Automated packaging technology can automatically open, pack, seal, and label cardboard boxes, significantly improving efficiency, reducing costs, and ensuring packaging quality and consistency. Therefore, it has become an important technological support for modern logistics and manufacturing.

[0003] In automated corrugated carton packaging production lines, a common problem during the blank loading stage is that the blanks are placed in the wrong direction, meaning the opening of the blank does not match the requirements of the packaging equipment. This can prevent subsequent processes from proceeding normally, and may even damage the equipment, affecting production efficiency and product quality. Utility Model Content

[0004] This utility model provides a blank feeding device to improve the technical problem that blanks are easily placed backwards during the blank feeding process.

[0005] To achieve the above and other related objectives, this utility model provides a box blank feeding device, which includes: a box blank hopper and a first detection mechanism; the box blank hopper includes multiple partitions, and adjacent partitions have receiving portions capable of positioning and accommodating box blanks; the first detection mechanism includes multiple telescopic components, each corresponding to one of the receiving portions, and the telescopic components have a first position and a second position; when the telescopic component is in the first position, it is located outside the receiving portion; when the telescopic component is in the second position, it is at least partially located inside the receiving portion; the box blank includes a detection mark, and when the telescopic component is in the second position, it is configured to eject the box blank when the detection mark is misaligned, or trigger an alarm under the pressure of the box blank.

[0006] In one example of the blank feeding device of this utility model, the first detection mechanism further includes a connecting plate and a movable driving component; the connecting plate is connected to the moving end of the driving component, and multiple retractable components are installed at intervals on the connecting plate.

[0007] In one example of the blank feeding device of this utility model, the telescopic component includes a sliding rod, a guide sleeve, and an elastic element; the guide sleeve passes through the connecting plate and is fixedly connected to the connecting plate; the sliding rod is slidably connected to the guide sleeve, and the sliding rod includes a sliding rod body and a top block and a stop block respectively disposed at both ends of the sliding rod body. The top block is disposed at one end of the sliding rod body near the blank chamber, and the stop block is disposed at the other end of the sliding rod body. The guide sleeve stops the top block and the stop block from passing through; the elastic element is located between the top block and the connecting plate, and stores or releases energy during the sliding of the sliding rod.

[0008] In one example of the blank feeding device of this utility model, the first detection mechanism also includes multiple sensors, which correspond to multiple retractable parts. The sensors are directly or indirectly installed on the connecting plate, and the sensors emit signals when the retractable parts approach or contact them.

[0009] In one example of the blank feeding device of this utility model, the first detection mechanism further includes a sensor mounting plate, which is connected to the connecting plate and located on the outside of the telescopic component. Multiple sensors are installed through the sensor mounting plate. Each sensor includes a sensing end, which is located at the end near the telescopic component. The telescopic component also includes a sensing sleeve disposed at the end near the sensor. The sensor emits a signal when the sensing sleeve approaches or contacts the sensor.

[0010] In one example of the blank feeding device of this utility model, the first detection mechanism also includes multiple alarm elements, which correspond to and are controlled by multiple sensors.

[0011] In one example of the blank loading device of this utility model, the blank loading device has a first direction and a second direction that are perpendicular to each other. The direction of loading and unloading the blank is the second direction. The blank has a first end and a second end along the first direction. The first end and the second end of the blank are asymmetrical structures. The blank loading device also includes a second detection mechanism, which is disposed on one or both sides of the blank storage in the second direction. When the first end and the second end are in a preset position, the detection result of the second detection mechanism is the first result. When the first end and the second end are placed in opposite positions, the detection result of the second detection mechanism is the second result. The first result and the second result are different.

[0012] In one example of the blank feeding device of this utility model, a detection mark is provided at the first end, and the detection mark includes a groove provided at the first end; the second detection mechanism includes a through-beam sensor, which includes a transmitting end and a receiving end. The transmitting end and the receiving end are respectively provided on both sides of the blank bin in the second direction. Each partition is provided with a through hole, and each through hole is located on the path of the light emitted from the transmitting end to the receiving end; when the first end is in a preset position, the groove is located on the path of the light emitted from the transmitting end to the receiving end.

[0013] In one example of the blank feeding device of this utility model, the blank feeding device further includes a liftable limiting mechanism. The direction of blank feeding is a second direction. Along the second direction, the partition has a discharge end for blank discharge. The limiting mechanism is located on the outside of the discharge end. The limiting mechanism has a third position for restricting the movement of the blank and a fourth position for avoiding the blank.

[0014] In one example of the blank feeding device of this utility model, the limiting mechanism includes a lifting component and a limiting rod that is connected to the lifting component. The limiting rod extends along the direction of the partition arrangement. The lifting component drives the limiting rod to rise to the third position or fall to the fourth position.

[0015] This utility model relates to a blank loading device. The blank hopper holds multiple blanks, which are then positioned within respective receiving compartments separated by multiple partitions. Because the structures of the blanks differ on each side, a uniform placement orientation is required for consistent loading. A first detection mechanism checks whether the placement orientation of the blanks meets preset requirements. Multiple retractable components in the first detection mechanism correspond one-to-one with the multiple receiving compartments, enabling the detection of each blank placed within each compartment. The retractable components have a first position and a second position. When a blank is placed into a receiving compartment, the retractable component is positioned in the first position, outside the receiving compartment, to avoid obstructing the blank loading channel and facilitate entry. After the blank is in place, the retractable component is positioned in the second position, at least partially within the receiving cavity. If the detection mark of the blank is misaligned, that is, the blank is placed in the wrong direction, the telescopic component can push the blank out, or trigger an alarm under the pressure of the blank. This setting can detect whether the blank is placed in the preset direction, and thus detect the problem of the blank being placed backwards, so that the direction can be adjusted in time to ensure the normal progress of subsequent work, thereby improving production efficiency and product quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the box blank feeding station in one embodiment of the box blank feeding device of this utility model;

[0018] Figure 2 for Figure 1 A magnified view of a section at point A in the middle;

[0019] Figure 3 This is a schematic diagram of the structure of an embodiment of the blank feeding device of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure of a box blank in one embodiment of the box blank feeding device of this utility model;

[0021] Figure 5 This is a front view of the box blank feeding station in one embodiment of the box blank feeding device of this utility model;

[0022] Figure 6 for Figure 5 A three-dimensional structural schematic diagram of the BB cross-section;

[0023] Figure 7 This is a schematic diagram of the structure of the first detection mechanism in one embodiment of the blank feeding device of this utility model;

[0024] Figure 8 for Figure 7 A magnified sectional view of point D in the middle;

[0025] Figure 9 for Figure 5 A three-dimensional structural schematic diagram of the CC section view;

[0026] Figure 10 This is a schematic diagram of the limiting mechanism in one embodiment of the blank feeding device of this utility model.

[0027] Component designation explanation:

[0028] 1. Blank loading station; 10. Blank loading device; 20. Blank; 201. First end; 202. Second end; 203. Groove; 100. Blank bin; 110. Partition; 111. Feeding end; 112. Discharge end; 113. Second transition structure; 120. Receiving part; 200. First detection mechanism; 210. Telescopic component; 213. Slide rod; 2131. Slide rod body; 2132. Top block; 2133. Stop block; 214. Guide sleeve ; 215, Elastic element; 216, Sensing sleeve; 220, Connecting plate; 230, Driving component; 231, Moving end; 240, Sensor; 241, Sensing end; 250, Sensor mounting plate; 260, Alarm element; 300, Second detection mechanism; 310, Through-beam sensor; 311, Transmitting end; 312, Receiving end; 313, Through hole; 400, Limiting mechanism; 410, Lifting component; 420, Limiting rod; 421, First transition structure. Detailed Implementation

[0029] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0030] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.

[0031] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0032] Please see Figures 1 to 10 This utility model provides a blank feeding device 10, which includes a blank storage bin 100 and a first detection mechanism 200. The blank storage bin 100 is used to hold multiple blanks 20, and the first detection mechanism 200 is used to detect the placement direction of the blanks 20. When it is detected that a blank 20 is placed in reverse, the direction of the blank 20 can be adjusted in time to ensure the normal operation of subsequent work, thereby improving production efficiency and product quality.

[0033] Please see Figures 1 to 3The blank hopper 100 includes multiple partitions 110, with receiving portions 120 between adjacent partitions 110 capable of accommodating blanks 20. The shape and form of the partitions 110 are not limited; for example, they can be plate-shaped or rod-shaped, as long as they effectively separate the blanks and form multiple independent receiving portions 120. Each receiving portion 120 can accommodate one or more blanks 20. This arrangement allows the blanks 20 to be supported by the partitions 110, making loading and unloading of the blanks 20 easier compared to a configuration without partitions 110 where the blanks 20 support each other. The number of partitions 110 and the number of receiving portions 120 are not limited and can be adjusted according to production needs.

[0034] Please see Figures 5 to 6 The first detection mechanism 200 includes multiple telescopic components 210. The telescopic components 210 can have various structural forms, which are not limited to any one type, such as telescopic extension via linkage mechanism, cylinder-driven telescopic extension, hydraulic cylinder-driven telescopic extension, screw-driven telescopic extension, or gas spring. Each telescopic component 210 corresponds one-to-one with a plurality of receiving portions 120, so that each blank 20 within a receiving portion 120 corresponds to one telescopic component 210. The telescopic component 210 has a first position and a second position, corresponding to its retracted position and extended position, respectively. When the telescopic component 210 is in the first position, it is located outside the receiving portion 120, thus avoiding the feeding channel of the blank 20 and facilitating its entry into the receiving portion 120. When the telescopic component 210 is in the second position, and there is no blank 20 within the receiving portion 120, the telescopic component 210 is at least partially located within the receiving portion 120.

[0035] When the retractable member 210 is in the second position, it is configured to detect the placement orientation of the blank 20. It should be noted that, as... Figure 3 As shown, the blank loading device 10 has a first direction and a second direction that are perpendicular to each other. The direction of loading and unloading the blank 20 is defined as the second direction, as shown by the X direction in the figure. The direction of extension and retraction of the telescopic component 210 is defined as the first direction, as shown by the Y direction in the figure. Correct placement of the blank 20 includes being correct in both the first and second directions. The telescopic component 210 can detect whether the blank 20 is located in a preset direction in both directions.

[0036] Considering that when the box blank 20 is placed in the receiving section 120, the retractable member 210 may be located at least partially inside the receiving section 120, or possibly outside the receiving section 120, due to the influence of the box blank 20 and the different methods of detecting the placement direction of the box blank 20; this is not limited. For example, please refer to [reference needed]. Figure 4The box blank 20 has a first end 201 and a second end 202 along a first direction. The first end 201 and the second end 202 of the box blank 20 have an asymmetrical structure. The box blank 20 also includes a detection mark, which can be set at the first end 201 or the second end 202. The detection mark can be a structure that exists due to the functional requirements of the box blank 20 itself, or it can be a structure designed for detecting the forward and reverse orientation. For example, in this embodiment, please refer to... Figure 4 The inspection markings include multiple grooves 203 on the first end 201 of the box blank 20, while the second end 202 has no grooves 203. The grooves 203 are part of the box blank 20 itself. The first end 201 of the box blank 20 is located in the unformed portion of the box cover, and the box cover itself has grooves 203 in its structure. It should be noted that the correct orientation for placing the box blank 20 is with the first end 201 located near the retractable component 210. Please refer to [link / reference]. Figure 6 The telescopic path of the retractable component 210 is aligned with the groove 203 of the first end 201. When the box blank 20 is incorrectly placed in the second direction, the telescopic path of the retractable component 210 is misaligned with the groove 203 of the first end 201. This can be understood as the box blank 20 being positioned within the receiving portion 120, meaning the box blank 20 is positioned at a preset position in both the first and second directions. Misalignment of the detection mark can only be caused by an incorrect placement orientation of the box blank 20, which includes errors in both the first and second directions. Therefore, when the detection mark of the box blank 20 is misaligned, the retractable component 210 can push the box blank 20 out, or trigger an alarm under pressure from the box blank 20, thus detecting an incorrect placement orientation of the box blank 20 in both the first and second directions.

[0037] Please see Figure 5 and Figure 6In one embodiment, when the box blank 20 is placed in the correct orientation, and the retractable member 210 is in the second position, the groove 203 will not obstruct the retractable member 210. Therefore, the retractable member 210 is at least partially located within the receiving portion 120, and the position of the box blank 20 remains unchanged. When the box blank 20 is placed in the wrong orientation, this includes errors in the first and second orientations. When the first orientation is incorrect, i.e., the first end 201 of the box blank 20 is located away from the retractable member 210, the groove 203 on the first end 201 is misaligned, i.e., the detection mark is misaligned. At this time, the second end 202 is located close to the retractable member 210. Since the second end 202 does not have a groove 203, the second end 202 of the box blank 20 obstructs the retractable member 210. The retractable member 210 pushes against the second end 202. Although the retractable member 210 is at least partially located within the receiving portion 120, the box blank 20 is pushed out of the receiving portion 120 by the retractable member 210 to a certain height. When the second orientation is incorrect, the groove 203 of the first end 201 is misaligned with the telescopic path of the telescopic component 210, i.e., the detection mark is misaligned. Therefore, the first end 201 of the blank 20 obstructs the telescopic component 210. Although the telescopic component 210 is at least partially located within the receiving portion 120, the blank 20 is pushed higher than other correctly positioned blanks 20 by the telescopic component 210. In this way, the incorrectly positioned blank 20 protrudes slightly compared to the correctly positioned blank 20. In another embodiment, unlike the previous embodiment, the telescopic component 210 stops entering the receiving portion 120 after being blocked by the first end 201 or the second end 202. Instead, it moves in the opposite direction under the pressure of the blank 20, thereby triggering the sensor 240 to issue an alarm. Both of these methods can detect incorrectly positioned blanks 20 and adjust their orientation in time to ensure the normal operation of subsequent work, thereby improving production efficiency and product quality.

[0038] Please see Figure 6 In one example of the blank loading device 10 of this utility model, the first detection mechanism 200 further includes a connecting plate 220 and a movable driving component 230. The driving component 230 can take many forms, and is not limited to any one of them, such as a linkage mechanism, a cylinder, a hydraulic cylinder, or a screw mechanism. The connecting plate 220 is connected to the moving end 231 of the driving component 230, and multiple telescopic components 210 are spaced apart on the connecting plate 220. This arrangement allows multiple telescopic components 210 to be driven simultaneously by only one driving component 230, saving equipment costs and ensuring consistency of telescopic movements.

[0039] Please see Figure 7 and Figure 8In one example of the blank loading device 10 of this utility model, the telescopic component 210 includes a sliding rod 213, a guide sleeve 214, and an elastic element 215. The guide sleeve 214 passes through the connecting plate 220 and is fixedly connected to the connecting plate 220. The sliding rod 213 is slidably connected to the guide sleeve 214 to guide and reduce friction. The guide sleeve 214 is a wear part that is easy to replace and maintain, which can reduce the cost of use. The sliding rod 213 includes a sliding rod body 2131 and a top block 2132 and a stop block 2133 respectively disposed at both ends of the sliding rod body 2131. The top block 2132 is disposed at one end of the sliding rod body 2131 near the blank chamber 100, and the stop block 2133 is disposed at the other end of the sliding rod body 2131. The guide sleeve 214 stops the top block 2132 and the stop block 2133 from passing through. The guide sleeve 214 stops the top block 2132 and the stop block 2133, strictly limiting the sliding stroke of the slide rod 213 and preventing excessive extension or retraction. Furthermore, the positions of the top block 2132 and the stop block 2133 on the slide rod body 2131 are adjustable and lockable to the slide rod body 2131, allowing adjustment and control of the length of the telescopic component 210 extending into the receiving part 120 to accommodate different specifications of box blanks 20. The elastic element 215 is located between the top block 2132 and the connecting plate 220, and stores or releases energy during the sliding of the slide rod 213. The elastic element 215 can be a coil spring, wave spring, disc spring, or polyurethane spring, etc., and is not limited thereto. It is acceptable as long as the top block 2132 of the slide rod 213 is compressed when it encounters resistance, causing the slide rod 213 to move towards the side where the stop block 2133 is located, and the elastic force is released when the resistance disappears, allowing the slide rod 213 to return to its original position. This technical solution enables the slide bar 213 to move in the opposite direction when it encounters resistance, thereby making the slide bar 213 corresponding to the incorrectly placed blank 20 and the slide bar 213 corresponding to the correctly placed blank 20 have different states, so as to identify the incorrectly placed blank 20.

[0040] Please see Figure 7 and Figure 8In one example of the blank feeding device 10 of this utility model, the first detection mechanism 200 further includes multiple sensors 240. The multiple sensors 240 correspond to multiple retractable components 210. The number of sensors 240 is not limited, as long as it is the same as the number of retractable components 210. The installation position of the sensors 240 is not limited; they can be directly or indirectly installed on the connecting plate 220, as long as the sensors 240 emit a signal when the retractable components 210 approach or contact them. In one embodiment, when the top block 2132 of the slide rod 213 is subjected to resistance, it is compressed, causing the slide rod 213 to move towards the side where the stop block 2133 is located. The sensor 240 is installed on the side of the retractable component 210 near the stop block 2133. As the slide rod 213 moves towards the side where the stop block 2133 is located, it will gradually approach or touch the sensor 240. The sensor 240 can take various forms, such as a proximity sensor, photoelectric sensor, micro switch, or Hall effect sensor, etc., and is not limited in this respect. For example, when sensor 240 is a proximity sensor, it will emit a signal as soon as it detects the retractable component 210 approaching. When sensor 240 is a microswitch, it will emit a signal after being touched by the retractable component 210, thereby identifying the incorrectly placed blank 20. This application employs a design of reverse compression of the retractable component 210 and detection by sensor 240, which improves the response speed and detection accuracy of sensor 240, thus enhancing its reliability. Furthermore, the signal emitted by sensor 240 can be transmitted to a PLC or control system in real time and can interface with industrial automation systems to achieve functions such as alarm prompts, corrective actions, and data logging.

[0041] Please see Figure 7 and Figure 8In one example of the blank feeding device 10 of this utility model, the first detection mechanism 200 further includes a sensor mounting plate 250, which is connected to the connecting plate 220. By setting the sensor mounting plate 250, a modular layout of the sensor 240 and the retractable component 210 is achieved, which facilitates overall assembly and maintenance, simplifies wiring, and avoids signal interference. The sensor mounting plate 250 is located on the outside of the retractable component 210, and multiple sensors 240 are arranged through the sensor mounting plate 250 to make reasonable use of space and reduce excessive space occupation in a single direction. The sensor 240 includes a sensing end 241, which is located at the end of the retractable component 210 close to it. The retractable component 210 also includes a sensing sleeve 216 disposed at the end close to the sensor 240. The sensing sleeve 216 can be a metal ring or a magnetic ring, etc., and is not limited thereto. It can be a material that is compatible with sensors 240 of different principles and can enhance the detection sensitivity of the sensor 240. The sensor 240 emits a signal when the sensing sleeve 216 approaches or contacts it. The sensor 240's sensing end 241 faces the retractable component 210, and is designed in conjunction with the sensing sleeve 216 to ensure that the signal triggering area is concentrated and to reduce false detections.

[0042] Please see Figure 1 and Figure 2 In one example of the blank loading device 10 of this utility model, the first detection mechanism 200 further includes multiple alarm elements 260, which correspond to and are controlled by multiple sensors 240. To improve the convenience and accuracy of workers in identifying errors, each alarm element 260 is provided corresponding to each receiving part 120. The position of the incorrectly placed blank 20 can be quickly detected by the alarm of the alarm element 260. Furthermore, multiple corresponding grooves 203 are provided on the mounting surface of the blank hopper 100 for installing the alarm elements 260. Each alarm element 260 is set below its mounting surface to prevent obstruction of the loading of the blank 20. There are various types of alarm elements 260, such as LED indicator lights, buzzers, industrial alarm lights, etc., and there is no limitation on them. In one embodiment, the LED indicator light displays green when the blank 20 is placed correctly, and the indicator light corresponding to the incorrectly placed blank 20 displays red. This setting facilitates accurate and rapid positioning by workers. In one embodiment, an alarm system combining sound and light is used. This eliminates the need for staff to constantly monitor the alarm lights; they can simply check when the alarm sounds, reducing workload and improving efficiency. In this technical solution, each sensor 240 is connected to an independent alarm element 260, ensuring that each detection point can trigger an alarm independently. Operators can quickly locate the faulty blank 20 based on the alarm location, or the system can automatically pause the production line and activate the correction mechanism, achieving precise error location and improving processing efficiency.

[0043] Please see Figure 3 and Figure 4 In one example of the blank loading device 10 of this utility model, the blank loading device 10 has a first direction and a second direction that are perpendicular to each other. The direction of loading and unloading the blank 20 is the second direction. The blank 20 has a first end 201 and a second end 202 along the first direction. The first end 201 and the second end 202 of the blank 20 are asymmetrical structures. The asymmetrical structure of the first end 201 and the second end 202 may be due to the functional requirements of the blank 20 itself, or it may be designed for detecting the orientation. For example, in this embodiment, please refer to... Figure 4 The first end 201 of the blank 20 is provided with a detection mark, which includes a groove 203 on the first end 201. The number of grooves 203 is not limited. The second end 202 does not have grooves 203. The grooves 203 are designed into the blank 20 itself. The first end 201 of the blank 20 is located in the part of the box cover before it is folded and formed, and the structure of the box cover itself has multiple grooves 203. The blank feeding device 10 also includes a second detection mechanism 300. The structure and detection method of the second detection mechanism 300 are not limited. For example, it can be a sensor 240 or a mechanical component. The position of the second detection mechanism 300 is not limited. It can be set on one or both sides of the blank storage 100 in the second direction. When the first end 201 and the second end 202 are in a preset position, the detection result of the second detection mechanism 300 is the first result. When the first end 201 and the second end 202 are placed in opposite positions, the detection result of the second detection mechanism 300 is the second result. The form of the first result and the second result is not limited. It can be a buzzer, a light, or a combination of multiple methods. As long as the first result and the second result are different, it can be determined whether the first end 201 and the second end 202 are located in the preset position. It should be noted that the second detection mechanism 300 realizes the detection of the box blank 20 in the first direction, that is, regardless of whether the box blank 20 is placed in the second direction, it can detect whether the box blank 20 is placed in the first direction. Therefore, the detection result of the second detection mechanism 300 in this application is combined with the detection result of the first detection mechanism 200, which can eliminate the case of placement error in the first direction detected by the first detection mechanism 200. In one embodiment, the placement error detected by the first detection mechanism 200 includes two possibilities: placement in the first direction and placement in the second direction. If the detection result of the second detection mechanism 300 is that the first direction is not reversed, then the incorrect placement detected by the first detection mechanism 200 is placement in the second direction. Similarly, if both the first detection mechanism 200 and the second detection mechanism 300 detect incorrect placement, it indicates that the blank 20 is placed backwards at least in the first direction. The next step is to adjust the blank 20 in the first direction and then re-detect whether the problem of backward placement in the second direction still exists. This technical solution improves detection efficiency and accuracy.

[0044] Please see Figure 5 and Figure 6 In one example of the blank loading device 10 of this utility model, the second detection mechanism 300 includes a through-beam sensor 310, which includes a transmitting end 311 and a receiving end 312. The transmitting end 311 and the receiving end 312 are respectively disposed on both sides of the blank storage 100 in the second direction. Each partition 110 is provided with a through hole 313, and each through hole 313 is located on the path of the light emitted from the transmitting end 311 to the receiving end 312, so that the light can pass through the partition 110 and illuminate the receiving end 312. When the first end 201 is in the preset position, the groove 203 is located on the path of the light emitted from the transmitting end 311 to the receiving end 312, so that the light can pass through the groove 203 and illuminate the receiving end 312. At this time, the detection result of the second detection mechanism 300 is the first result, proving that the first end 201 is in the preset position. When the blank 20 is placed backwards in the first direction, i.e., the second end 202 and the first end 201 are swapped, and the second end 202 does not have a groove 203, the light emitted from the transmitting end 311 cannot reach the receiving end 312. In this case, the detection result of the second detection mechanism 300 is the second result, proving that the blank 20 is placed backwards in the first direction. The transmitting end 311 and the receiving end 312 of the through-beam sensor 310 detect the presence of the blank 20 through infrared / laser beams, avoiding wear or false triggering caused by mechanical contact. The through holes 313 of each partition 110 correspond to the same beam path, realizing synchronous detection of the blank 20 status of multiple receiving parts 120, which is far more efficient than single-point detection. Since the first detection mechanism 200 can accurately locate a misplaced blank 20, the second detection mechanism 300 combined with the first detection mechanism 200 can improve the detection accuracy.

[0045] Please see Figure 5 , Figure 9 and Figure 10 In one example of the blank loading device 10 of this utility model, the blank loading device 10 further includes a liftable limiting mechanism 400. The direction of loading the blank 20 is a second direction. Along the second direction, the partition 110 has a discharge end 112 for the blank 20 to exit the bin. The limiting mechanism 400 is disposed outside the discharge end 112. The limiting mechanism 400 has a third position that restricts the movement of the blank 20 and a fourth position that avoids the blank 20. When the limiting mechanism 400 is in the third position, it physically blocks the movement of the blank 20, ensuring that the blank 20 stays at the precise discharge position. This avoids the problem of the detection mark being misaligned due to the movement of the blank 20 in the second direction, which is beneficial for the first detection mechanism 200 and the second detection mechanism 300 to accurately detect the problem of the blank 20 being placed backwards. It can also prevent the blank 20 from accidentally sliding out of the bin due to inertia or vibration. In the fourth position, the limiting mechanism 400 completely avoids the discharge channel, ensuring that the blank 20 smoothly enters the next process and avoids interference.

[0046] Please see Figure 9 and Figure 10 In one example of the blank loading device 10 of this utility model, the limiting mechanism 400 includes a lifting component 410 and a limiting rod 420 connected to the lifting component 410. The limiting rod 420 extends along the direction of the partition 110. The lifting component 410 drives the limiting rod 420 to rise to the third position or fall to the fourth position. The limiting rod 420 can realize that multiple blanks 20 are neatly arranged along the extension direction of the limiting rod 420, further improving the detection accuracy of the first detection mechanism 200 and the second detection mechanism 300. Furthermore, when the limiting rod 420 is in the fourth position, it is aligned with the support plane of the blank hopper 100 for the blanks 20, so as to improve the support force of the support plane on the blanks 20 and improve the stability of the blank loading.

[0047] Please see Figure 9 and Figure 10 In one example of the blank feeding device 10 of this utility model, the portion of the limiting rod 420 that contacts the blank 20 is the first transition structure 421. The shape of the first transition structure 421 is not limited and can be set as a curved surface or rounded corners, etc. In this embodiment, the limiting rod 420 is cylindrical. This setting can reduce the frictional force when the limiting rod 420 contacts the blank 20 to prevent damage to the blank 20.

[0048] Please see Figures 1 to 3 In one example of the blank feeding device 10 of this utility model, the feeding direction of the blank 20 is a second direction. Along the second direction, the partition 110 has a feeding end 111 for the blank 20 to enter the hopper. The partition 110 includes a second transition structure 113 disposed at the feeding end 111. The shape of the first transition structure 421 is not limited and can be set as a curved surface or a rounded corner, etc. In this embodiment, the second transition structure 113 is a rounded corner. This setting can reduce the friction when the blank 20 contacts the feeding end 111 to prevent the blank 20 from breaking.

[0049] This utility model also provides a packing production line (not shown in the figure), which includes the box blank feeding device 10 of any of the above-mentioned embodiments. In one embodiment of this utility model's packing production line, please refer to... Figure 1 and Figure 5 The packaging line is used for packaging lithium batteries and includes a battery loading station, an inspection and sorting station, a blank loading station 1, a battery packaging station, a box sealing station, and a quality inspection station. The blank loading device 10 is located at the blank loading station 1. The blank loading device 10 can detect if the blank 20 is placed backwards and can adjust its orientation in a timely manner to ensure the normal operation of subsequent work, thereby improving production efficiency and product quality.

[0050] This utility model relates to a blank feeding device. The first detection mechanism detects whether the blank's placement orientation meets preset requirements. It can detect blanks placed in reverse and adjust the orientation promptly to ensure the smooth operation of subsequent work, thereby improving production efficiency and product quality. Therefore, this utility model effectively overcomes some practical problems in the prior art, thus possessing high utilization value and significance. The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit it. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A blank feeding device for a box blank, characterized in that include: A blank storage compartment includes multiple partitions, with a receiving portion between adjacent partitions capable of positioning and accommodating blanks; A first testing mechanism includes multiple retractable components, each corresponding to a plurality of receiving portions. Each retractable component has a first position and a second position. When the retractable component is in the first position, it is located outside the receiving portions. When the retractable component is in the second position, it is at least partially located inside the receiving portions. The blank includes a detection mark. When the retractable component is in the second position, the retractable component is configured to push the blank out when the detection mark on the blank is misaligned, or to trigger an alarm under the pressure of the blank.

2. The blank loading apparatus of claim 1, wherein The first detection mechanism also includes a connecting plate and a movable drive component; The connecting plate is connected to the moving end of the driving component, and a plurality of the retractable components are installed at intervals on the connecting plate.

3. The blank loading apparatus of claim 2, wherein, The retractable component includes a slide rod, a guide sleeve, and an elastic element; The guide sleeve passes through the connecting plate and is fixedly connected to the connecting plate; The slide rod is slidably connected to the guide sleeve. The slide rod includes a slide rod body and a top block and a stop block respectively disposed at both ends of the slide rod body. The top block is disposed at one end of the slide rod body near the blank chamber, and the stop block is disposed at the other end of the slide rod body. The guide sleeve stops the top block and the stop block from passing through. The elastic element is located between the top block and the connecting plate, and stores or releases energy during the sliding of the slide rod.

4. The blank loading apparatus of claim 2, wherein The first detection mechanism also includes multiple sensors, which correspond to multiple retractable components. The sensors are directly or indirectly mounted on the connecting plate, and the sensors emit signals when the retractable components approach or contact them.

5. The blank loading apparatus of claim 4, wherein, The first detection mechanism further includes a sensor mounting plate, which is connected to the connecting plate and located on the outside of the retractable component. Multiple sensors are disposed through the sensor mounting plate, and each sensor includes a sensing end located at one end close to the retractable component. The retractable component also includes a sensing sleeve disposed at one end near the sensor shown, the sensor emitting a signal when the sensing sleeve approaches or contacts the sensor.

6. The blank loading apparatus of claim 4, wherein, The first detection mechanism also includes multiple alarm elements, which correspond to and are controlled by multiple sensors.

7. The blank loading apparatus of claim 1 wherein, The box blank feeding device has a first direction and a second direction that are perpendicular to each other. The direction of loading and unloading the box blank is the second direction. The box blank has a first end and a second end along the first direction. The first end and the second end of the box blank have an asymmetrical structure. The blank loading device also includes a second detection mechanism, which is located on one or both sides of the blank hopper in a second direction; When the first end and the second end are in a preset position, the detection result of the second detection mechanism is the first result. When the first end and the second end are placed in opposite positions, the detection result of the second detection mechanism is the second result. The first result and the second result are different.

8. The blank loading apparatus of claim 7, wherein, The first end is provided with the detection mark, and the detection mark includes a groove provided on the first end; The second detection mechanism includes a through-beam sensor, which includes a transmitter and a receiver. The transmitter and receiver are respectively located on both sides of the blank chamber in the second direction. Each partition is provided with a through hole, and each through hole is located on the path of the light emitted from the transmitter towards the receiver. When the first end is located at the preset position, the groove is located on the path of the light emitted from the transmitting end toward the receiving end.

9. The box blank loading apparatus of claim 1, wherein, The blank loading device also includes a liftable limiting mechanism. The blank loading direction is a second direction. Along the second direction, the partition has a discharge end for the blank to exit the chamber. The limiting mechanism is located outside the discharge end. The limiting mechanism has a third position to restrict the movement of the blank and a fourth position to avoid the blank.

10. The blank loading apparatus of claim 9, wherein, The limiting mechanism includes a lifting component and a limiting rod that is driven to the lifting component. The limiting rod extends along the direction in which the partitions are arranged. The lifting component drives the limiting rod to rise to the third position or fall to the fourth position.

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