Packaging line

Abstract

The application discloses a kind of packing assembly line, it is related to packaging equipment technical field, wherein, packing assembly line includes: feeding device, conveying device, film wrapping device, paper sheet machine and discharging device;Feeding device is used to transport product to be film wrapped;Conveying device is used to receive product sent by feeding device and transport it;Film wrapping device has film wrapping station, film wrapping device is used to film wrapping product in film wrapping station, and it is sent out;Paper sheet machine is used to send corner guard paper to film wrapping station;Discharging device is used to receive product after film wrapping and send it out;The technical scheme provided by the application can be realized when product is packaged in packing assembly line, corner guard paper can be sent to packaging station by paper sheet machine, so that corner guard paper is wound at the edge of the product while the product is packaged, and is covered by wrapping film, to protect the edge of the product by corner guard paper, avoid the edge damaged in subsequent transportation, improve product yield.

Description

Packaging assembly line Technical Field

[0001] This invention relates to the field of packaging equipment technology, and in particular to a packaging production line. Background Technology

[0002] In related technologies, packaging production lines include a feeding device, a conveying device, a wrapping device, and an unloading device to automatically wrap the product with a film. In existing technologies, after the wrapping device finishes packaging the product, the edges and corners of the product are prone to damage, leading to a decrease in product yield. Summary of the Invention

[0003] The main objective of this invention is to propose a packaging production line that can protect the corners of products during packaging, thereby improving product yield.

[0004] To achieve the above objectives, the packaging production line proposed in this invention includes: a feeding device, a conveying device, a wrapping device, a paper sheeter, and a discharging device; the feeding device is used to convey products to be wrapped; the conveying device is located at the output end of the feeding device and is used to receive and transport the products sent out by the feeding device; the wrapping device is located at the output end of the conveying device, the wrapping device has a wrapping station, the wrapping device is used to receive the products sent out by the conveying device and move them to the wrapping station, the wrapping device is used to wrap the products in the wrapping station and send them out; the paper sheeter is located on one side of the wrapping device, the paper sheeter is used to convey corner protectors to the wrapping station when the wrapping device is wrapping the products; the discharging device is located on one side of the wrapping device, the discharging device is used to receive the wrapped products and send them out.

[0005] In one embodiment, the conveying device includes a feeding and flipping mechanism and a conveying mechanism. The feeding and flipping mechanism is located at the output end of the feeding device, and the conveying mechanism is located between the flipping mechanism and the wrapping station. The feeding and flipping mechanism is used to receive the product sent out by the feeding device, flip it at a preset angle, and send it to the conveying mechanism. The conveying mechanism is used to convey the product to the wrapping station.

[0006] In one embodiment, the conveying mechanism includes a first conveying component and a weighing mechanism and a centering mechanism disposed on the first conveying component. The first conveying component is used to move the product from one end of the first conveying component near the loading and turning mechanism to the other end. The weighing mechanism is located on the side of the first conveying component near the turning mechanism, and the centering mechanism is located on the side of the first conveying component near the wrapping station.

[0007] In one embodiment, the feeding device includes a first receiving groove that can slide along a first direction, a conveyor belt is provided in the first receiving groove, the conveyor belt is used to drive the product to move along a second direction, and the conveying device is provided at one end of the first receiving groove along the second direction; the feeding device has a receiving position for receiving the product and a feeding position for conveying the product to the conveying device in the first direction, and the first direction intersects with the second direction.

[0008] In one embodiment, the wrapping device includes: a machine base, a rotating base, a second conveying assembly, a first lifting device, and a film feeding mechanism. The wrapping station is located on the machine base. The rotating base is rotatably mounted on the wrapping station and is capable of rotating about a pivot axis parallel to a third direction. The second conveying assembly is mounted on the rotating base and is used to convey the product to be wrapped to the wrapping station. The first lifting device is mounted on the rotating base and has a first lifting component for abutting the product to be wrapped. The second conveying assembly has a clearance space for the first lifting component to pass through, and the first lifting component is vertically and vertically disposed in the clearance space. The film feeding mechanism is used to transfer the wrapping film to the outer periphery of the product at the wrapping station and cooperate with the rotating base to form a packaging film layer on the outer periphery of the product.

[0009] In one embodiment, the paper sheet machine includes: a storage device, a picking device, and a conveying device. The storage device includes at least one set of storage and conveying modules for storing corner protector paper and conveying the corner protector paper along a first direction. The picking device is located on one side of the storage device along the first direction. The picking device includes at least one picking module, which includes a picking mechanism and a receiving component. The receiving component has a transition groove for accommodating the corner protector paper. The picking mechanism is used to sequentially pick up the corner protector paper from the storage device and transfer it to the transition groove. The conveying device is located on one side of the picking device along a second direction. The conveying device includes at least one conveying module for picking up the corner protector paper from the transition groove along the second direction and transferring it to a wrapping device. The first direction intersects with the second direction.

[0010] In one embodiment, the feeding device includes a feeding flipping mechanism and a second receiving groove. The feeding flipping mechanism is located on one side of the coating device along the second direction, and the second receiving groove is located on the side of the feeding flipping mechanism away from the coating device. The feeding flipping mechanism is used to pick up the finished product after coating and flip it at a preset angle before sending it to the second receiving groove. The second receiving groove is used to drive the finished product after coating to be output along the second direction.

[0011] In one embodiment, the feeding device further includes a second lifting device, which is located below the feeding and turning mechanism. The second lifting device has a third lifting component for supporting the finished product after film coating. The feeding and turning mechanism has a clearance space for the third lifting component to pass through, and the third lifting component is movably and height-adjustable in the clearance space.

[0012] In one embodiment, the packaging line further includes a labeling mechanism located on the side of the unloading and turning mechanism away from the feeding device. The third lifting component can pass through the clearance space to push the finished product with film coating to a preset position. The labeling mechanism is used to label the finished product at the preset position.

[0013] In one embodiment, the packaging line further includes a finished product conveyor line located at the end of the unloading device away from the wrapping device. The finished product conveyor line is used to receive the finished products output by the unloading device and transfer them to the finished product area.

[0014] The technical solution of the present invention employs a feeding device, a conveying device, a wrapping device, a paper sheeter, and a discharging device in a packaging production line. The feeding device is used to transport products to be wrapped; the conveying device is located at the output end of the feeding device and is used to receive and transport the products sent out by the feeding device; the wrapping device is located at the output end of the conveying device, and has a wrapping station. The wrapping device is used to receive the products sent out by the conveying device and move them to the wrapping station. The wrapping device is used to wrap the products in the wrapping station and send them out; the paper sheeter is located on one side of the wrapping device and is used to feed corner protectors to the wrapping station when the wrapping device is wrapping the products; the unloading device is located on one side of the wrapping device and is used to receive and send out the wrapped products. This allows the packaging line to feed corner protectors to the packaging station via the paper sheeter when packaging products, thereby wrapping the corner protectors around the corners of the products while packaging them, and covering them with stretch film. This protectors protect the corners of the products, preventing damage during subsequent transportation and improving product yield. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 is a structural schematic diagram of an embodiment of the packaging production line provided by the present invention.

[0017] Figure 2 is a schematic diagram of the structure of the wrapping device in one embodiment of the packaging production line provided by the present invention.

[0018] Figure 3 is a schematic diagram of the structure of the first lifting device in one embodiment of the packaging production line provided by the present invention.

[0019] Figure 4 is a schematic diagram of the wrapping device from another angle in one embodiment of the packaging production line provided by the present invention.

[0020] Figure 5 is a structural schematic diagram of an embodiment of the paper machine provided by the present invention.

[0021] Figure 6 is a schematic diagram of an embodiment of the material handling device provided by the present invention.

[0022] Figure 7 is a structural schematic diagram of the material handling device in Figure 6 from another perspective.

[0023] Figure 8 is a structural schematic diagram of the material handling device in Figure 6 from another perspective.

[0024] Figure 9 is a magnified view of part A in Figure 8.

[0025] Figure 10 is a schematic diagram of the material storage device of the paper machine in Figure 5.

[0026] Figure 11 is a magnified view of part B in Figure 10.

[0027] Figure 12 is a structural schematic diagram of the storage device in Figure 10 from another perspective.

[0028] Explanation of icon numbers:

[0029] 100. Packaging production line; 1. Feeding device; 11. First receiving trough; 12. Conveyor belt; 2. Conveying device; 21. Feeding and turning mechanism; 22. Conveying mechanism; 221. First conveying assembly; 222. Weighing mechanism; 223. Centering mechanism; 3. Wrapping device; 31. Machine base; 32. Rotating base; 33. Second conveying assembly; 331. Rotating roller; 34. First lifting device; 341. Base; 342. First lifting mechanism; 3421. First lifting assembly; 34211. First support bar; 34 212. First support column; 34213. First connecting plate; 3422. First power component; 343. Second lifting mechanism; 3431. Second lifting assembly; 34311. Second support bar; 34312. Second support column; 34313. Second connecting plate; 3432. Second power component; 344. Weighing sensor; 35. Film feeding mechanism; 351. Power assembly; 352. Film clamping assembly; 36. Film cutting mechanism; 37. Guiding mechanism; 38. Pressing mechanism; 4. Paper machine; 41. Material storage device; 411 411a. Upper storage and conveying module; 411b. Lower storage and conveying module; 4111. Conveying mechanism; 4112. Storage bin; 41121. Discharge port; 4113. Distributing assembly; 41131. First distributing brush; 41132. Second distributing brush; 412. Support frame; 42. Picking device; 421. Frame; 422. Picking module; 422a. Upper picking module; 422b. Lower picking module; 4221. Drive mechanism; 42211. Bracket; 4221 2. Translation drive assembly; 42213. Lifting drive assembly; 42214. Guide assembly; 4222. Material handling mechanism; 42221. Lifting power component; 42222. Material handling assembly; 42222a. Vacuum suction cup; 4223. Receiving component; 42231. Transition groove; 43. Conveying device; 5. Unloading device; 51. Unloading and turning mechanism; 52. Second receiving groove; 53. Second lifting device; 531. Third lifting assembly; 6. Labeling mechanism; 7. Finished product conveyor line; 20. Product; 30. Corner protector cardboard.

[0030] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0033] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0034] This invention proposes a packaging production line 100.

[0035] Please refer to Figures 1 to 12. In one embodiment of the present invention, the packaging production line 100 includes: a feeding device 1, a conveying device 2, a wrapping device 3, a paper sheeter 4, and a discharging device 5. The feeding device 1 is used to convey the product 20 to be wrapped. The conveying device 2 is located at the output end of the feeding device 1 and is used to receive the product 20 sent out by the feeding device 1 and transport it. The wrapping device 3 is located at the output end of the conveying device 2. The wrapping device 3 has a wrapping station. The wrapping device 3 is used to receive the product 20 sent out by the conveying device 2 and move it to the wrapping station. The wrapping device 3 is used to wrap the product 20 in the wrapping station and send it out. The paper sheeter 4 is located on one side of the wrapping device 3. The paper sheeter 4 is used to convey corner protectors to the wrapping station when the wrapping device 3 is wrapping the product 20. The discharging device 5 is located on one side of the wrapping device 3 and is used to receive the wrapped product 20 and send it out.

[0036] In this embodiment, the feeding device 1 is located at the beginning of the production line and can be a roller conveyor, belt conveyor, or elevator, etc., to receive the products 20 to be wrapped from the previous process or storage area and continuously transport them to the next stage of the production line at a controllable speed and direction. The conveying device 2 is installed at the output end of the feeding device 1 and is directly connected to the feeding device 1. It receives each product 20 sent out from the feeding device 1 and transports it horizontally along a preset path to the subsequent wrapping device 3. The wrapping device 3 is located at the output end of the conveying device 2 and receives the products 20 conveyed by the conveying device 2. It moves and positions the products 20 in the wrapping station through the clamping, lifting, or pushing mechanism inside the device. Then, the wrapping device 3 activates its rotating base 32, film feeding mechanism 35, and lifting device execution components to perform wrapping operations on the products 20 in the wrapping station according to the set program. After the packaging is completed, the wrapping device 3 again moves the products 20 out of the wrapping station through its internal mechanism and sends them to the downstream area. The paper sheeter 4 is installed on one side of the wrapping device 3. It stores and arranges corner protectors inside. During the wrapping process of the wrapping device 3, at specific moments, it uses a robotic arm, suction cup, or pushing mechanism to transport one or more corner protectors to the corners or specific surface positions of the rotating product 20 in the wrapping station. This allows the corner protectors to be directly wrapped and fixed to the product 20 by the film during subsequent wrapping. The unloading device 5 is located at the other end of the output side of the wrapping device 3. It receives the packaged product 20 from the wrapping device 3 and transports it out of the entire packaging line 100 to the next processing stage, inspection station, or stacking area. The packaging line 100 realizes continuous packaging operations from product 20 feeding, conveying, automatic wrapping, auxiliary material addition to finished product unloading. During packaging, corner protectors are wrapped around the corners of product 20 to protect the corners of product 20 and prevent the corners of product 20 from being bumped and damaged during subsequent transportation, thereby improving the yield of product 20.

[0037] The technical solution of this invention employs a feeding device 1, a conveying device 2, a wrapping device 3, a paper sheeter 4, and a discharging device 5 in a packaging production line 100. The feeding device 1 is used to convey the product 20 to be wrapped; the conveying device 2 is located at the output end of the feeding device 1 and is used to receive the product 20 sent out by the feeding device 1 and transport it; the wrapping device 3 is located at the output end of the conveying device 2, and has a wrapping station. The wrapping device 3 is used to receive the product 20 sent out by the conveying device 2 and move it to the wrapping station. The wrapping device 3 is used to wrap the product 20 in the wrapping station and then send it out; the paper sheeter 4 is located on one side of the wrapping device 3 and is used to wrap the product 20 in the wrapping device 3. When the product is wrapped, corner protector paper is fed to the wrapping station. The feeding device 5 is located on one side of the wrapping device 3. The feeding device 5 is used to receive the wrapped product 20 and send it out. When the packaging line 100 is packaging the product 20, it can feed corner protector paper to the packaging station through the paper sheet machine 4. At the same time as packaging the product 20, the corner protector paper is wrapped around the corners of the product 20 and covered by the stretch film. The corner protector paper protects the corners of the product 20, avoids damage to the corners during subsequent transportation, and improves the yield of the product 20.

[0038] In one embodiment, the conveying device 2 includes a loading and flipping mechanism 21 and a conveying mechanism 22. The loading and flipping mechanism 21 is located at the output end of the loading device 1, and the conveying mechanism 22 is located between the flipping mechanism and the wrapping station. The loading and flipping mechanism 21 receives the product 20 sent out by the loading device 1, flips it at a preset angle, and sends it to the conveying mechanism 22. The conveying mechanism 22 conveys the product 20 to the wrapping station. In this embodiment, the loading and flipping mechanism 21 is movably installed at the output end of the loading device 1 and docks with the output end of the loading device 1. The loading and flipping mechanism 21 can be a receiving platform or a clamp to receive the product 20 sent out from the loading device 1 in a specific posture (e.g., horizontal). After receiving, the drive system of the loading and flipping mechanism 21 drives the entire receiving platform or the clamp holding the product 20 to rotate around a horizontal axis to change the product 20 from the initial conveying posture to an upright or specific inclined posture suitable for subsequent packaging. After the flipping action is completed, the feeding flipping mechanism 21 sends the product 20, whose posture has been adjusted, out to the conveying mechanism 22 connected to it. The conveying mechanism 22 is installed between the output end of the feeding flipping mechanism 21 and the wrapping station of the wrapping device 3. It can be a continuously running belt conveyor, roller conveyor or chain plate conveyor, etc., to receive the product 20, whose posture has been corrected, from the feeding flipping mechanism 21, and to convey the product 20 horizontally along a straight line or a specific path at a constant speed or in an intermittent manner according to the rhythm requirements, until the product 20 is transferred to the wrapping station.

[0039] In one embodiment, the conveying mechanism 22 includes a first conveying component 221 and a weighing mechanism 222 and a centering mechanism 223 disposed on the first conveying component 221. The first conveying component 221 is used to move the product 20 from one end of the first conveying component 221 near the loading and turning mechanism 21 to the other end. The weighing mechanism 222 is located on the side of the first conveying component 221 near the turning mechanism, and the centering mechanism 223 is located on the side of the first conveying component 221 near the wrapping station. In this embodiment, the first conveying component 221 adopts a motor-driven roller conveyor line. The conveying surface of the roller conveyor line is horizontally arranged, driving the product 20 placed on it to move from the receiving end near the loading and turning mechanism 21 to the sending end near the wrapping station. The first conveying component 221 is provided with a weighing mechanism 222. The weighing sensor or weighing module of the weighing mechanism 222 is installed inside or below the frame structure of the first conveying component 221, and its weighing platform is realized through a dedicated independent weighing and conveying section that is seamlessly connected to the conveyor line. As product 20 moves along the conveyor line, it can pass through or stop at the weighing area. The sensors of the weighing mechanism 222 measure the mass of product 20 and transmit the data to the upper-level control system in real time for monitoring the mass of product 20. After weighing, product 20 continues to be conveyed by the first conveying component 221 towards the wrapping station. The centering mechanism 223 is installed on the side of the first conveying component 221 near the wrapping station, downstream of the weighing mechanism 222, on the last section of the conveying path before product 20 enters the wrapping device 3. The centering mechanism 223 can be composed of a pair of guide elements that can move synchronously in opposite directions. The guide elements are symmetrically distributed on both sides of the conveying path and are driven by a cylinder, electric screw, or servo motor. When product 20 reaches the centering area, the centering mechanism 223 is activated, pushing the guide elements on both sides to move towards product 20 simultaneously, mechanically contacting and correcting product 20 from both sides, so that product 20 moves laterally on the conveying surface until its central axis coincides with the preset movement path, achieving precise alignment of product 20. After alignment is completed, the guide element is reset and retracted, and the first conveying assembly 221 finally transports the aligned product 20 to the wrapping station. Throughout the process, the first conveying assembly 221 provides continuous conveying power, the weighing mechanism 222 completes quality data collection at the front end of the process, and the alignment mechanism 223 completes position calibration at the end of the process, ensuring that the product 20 meets the process requirements of traceable weight information and accurate physical location before entering the core packaging process.

[0040] In one embodiment, the feeding device 1 includes a first receiving trough 11 that can slide along a first direction. A conveyor belt 12 is provided inside the first receiving trough 11, and the conveyor belt 12 is used to drive the product 20 to move along a second direction. A conveying device 2 is disposed at one end of the first receiving trough 11 along the second direction. The feeding device has a receiving position for receiving the product 20 and a feeding position for conveying the product 20 to the conveying device 2 in the first direction, and the first direction intersects with the second direction. The receiving trough is connected to a fixed frame via a linear guide slider assembly mounted at its bottom, and is provided with translational force by a drive mechanism. One or more conveyor belts 12 extending along the second direction are provided on the inner surface of the first receiving trough 11, used to drive the received product 20 to move along the second direction using the friction between the belt surface and the product 20. The input end of the conveying device 2 is disposed at one end of the first receiving trough 11 along the second direction to receive the product 20 delivered from the first receiving trough 11. The feeding device 1 has a receiving position and then a feeding position in the first direction. When the first receiving trough 11 slides to the receiving position, its trough opening is aligned with the external feeding source to receive the product 20 to be processed. When the first receiving trough 11 is loaded with the product 20, its drive mechanism is started, which drives the entire trough and the product 20 it carries to slide along the first direction to the feeding position. At this time, the conveyor belt 12 inside the first receiving trough 11 is started, which transports the product 20 along the second direction to the conveying device 2, thereby realizing the automated supply of the product 20.

[0041] Referring to Figures 2 and 4, in one embodiment, the wrapping device 3 includes: a machine base 31, a rotating base 32, a second conveying assembly 33, a first lifting device 34, and a film feeding mechanism 35. The wrapping station is located on the machine base 31. The rotating base 32 is rotatably mounted on the wrapping station and can rotate about a pivot parallel to a third direction. The second conveying assembly 33 is mounted on the rotating base 32 and is used to convey the product 20 to be wrapped to the wrapping station. The first lifting device 34 is mounted on the rotating base 32 and has a first lifting component 3421 for abutting the product 20 to be wrapped. The second conveying assembly 33 has a clearance space for the first lifting component 3421 to pass through, and the first lifting component 3421 is vertically and vertically disposed in the clearance space. The film feeding mechanism 35 is used to transfer the wrapping film to the outer periphery of the product 20 at the wrapping station and cooperates with the rotating base 32 to form a packaging film layer on the outer periphery of the product 20.

[0042] In this embodiment, the rotating base 32 is rotatably mounted on the coating station via a large slewing bearing. The inner ring of the slewing bearing is fixed to the machine base 31, and the outer ring is connected to the support plate of the rotating base 32. The second conveying assembly 33 is fixedly mounted on the support plate surface of the rotating base 32 and consists of multiple electric rollers arranged at intervals along a first direction and extending along a second direction. The surfaces of these rollers are flush, forming a continuous conveying plane for conveying the product 20 to be coated, which is transferred from the upstream conveying mechanism 22, to the coating station while the rotating base 32 remains stationary. The first lifting device 34 is installed in the internal structure of the rotating base 32 and connected to the rotating base 32 to rotate with it. The first lifting device 34 has a vertically extendable first lifting assembly 3421 for supporting and lifting the product 20 located at the coating station from bottom to top when needed. The multiple rotating rollers of the second conveying component 33 are spaced regularly, forming a clearance space that runs through a third direction. The first lifting component 3421 is initially housed below this clearance space. When its power component is activated, it lifts the first lifting component 3421 vertically along a third direction, extending out of the clearance space and contacting the bottom of the product 20 to achieve the lifting function. The film feeding mechanism 35 is used to pull the wrapping film out of the film roll and transfer it to the outer periphery of the product 20 at the wrapping station. After the film feeding mechanism 35 fixes the end of the film to the outer wall of the product 20, the rotating base 32 begins to drive the product 20 to rotate at a uniform speed. At the same time, the film feeding mechanism 35 lifts and lowers vertically, so that the film is continuously wrapped around the outer periphery of the product 20 in a spiral wrapping manner, ultimately forming multiple layers of tightly packed packaging film on the surface of the product 20.

[0043] Referring to Figures 1 to 4, the first lifting device 34 further includes: a base 341, a first lifting mechanism 342, and a second lifting mechanism 343; the first lifting mechanism 342 and the second lifting mechanism 343 constitute a first lifting assembly 3421, and the base 341 is used to connect with the equipment platform 31; the first lifting mechanism 342 is installed on the base 341, and the first lifting mechanism 342 includes a first lifting assembly 3421 and a first power component 3422 that is driven and connected to the first lifting assembly 3421; the second lifting mechanism 343 is installed on the base 341, and the second lifting mechanism 343 includes a second lifting assembly 3431 and a second power component 3432 that is driven and connected to the second lifting assembly 3431, the second lifting assembly 3431 has a lifting space through which the first lifting assembly 3421 passes, and the first lifting assembly 3421 is movably installed in the first lifting space.

[0044] The base 341 serves as the mounting foundation for the device and is equipped with an interface or fixing structure for rigid connection with external equipment platform 31, ensuring the overall stability of the device during operation. A first lifting mechanism 342 is mounted on the base 341. The first lifting mechanism 342 includes a first lifting assembly 3421 capable of linear movement in the vertical direction, and a first power component 3422 providing power to the first lifting assembly 3421. The first power component 3422 is connected to the first lifting assembly 3421 via mechanical transmission to drive it to perform independent lifting actions. A second lifting mechanism 343 is also mounted on the base 341 and arranged in conjunction with the first lifting mechanism 342. The second lifting mechanism 343 includes a second lifting assembly 3431 and a drive mechanism for the second lifting assembly 3421. The second power component 3432 of the lowering component 3431 has a vertical channel penetrating its body, which forms a lifting space for the first lifting component 3421 to pass through; so that the first lifting component 3421 can move relative to the second lifting component 3431 in the vertical direction within the lifting space, so that the first lifting component 3421 and the second lifting component 3431 can perform lifting movements separately or simultaneously on the same axis, and the two do not interfere with each other during the movement; thus, the entire device can realize multi-level or compound lifting functions, thereby expanding the load adaptability of the lifting device.

[0045] Understandably, when product 20 is relatively small in weight or size, the internal first lifting mechanism 342 can be driven to push against product 20, thus requiring the lifting device to output a small lifting force to push product 20 to a preset position. Conversely, when product 20 is larger in weight or size, the external second lifting mechanism 343, or both the first and second lifting mechanisms 342 simultaneously, can be driven to push against product 20, requiring the lifting device to output a larger lifting force to push against the heavier or larger product 20. This improves the lifting device's adaptability to product 20 and allows it to output different levels of lifting force according to actual needs, thereby improving the utilization rate of power resources.

[0046] Optionally, the second lifting component 3431 is arranged in a ring structure, and the first lifting component 3421 is movably disposed within the inner hole of the ring structure. The body structure of the second lifting component 3431 is ring-shaped, and the ring structure has a circular or rectangular through hole extending along its central axis, forming its inner hole space, which extends along the vertical height direction. The ring structure ensures the stability and reliability of the second lifting component 3431 when bearing load and transmitting power. The first lifting component 3421 is installed in the inner hole of the ring structure, and the two are axially aligned through dimensional matching, so that the outer surface of the first lifting component 3421 and the inner surface of the inner hole structure of the ring structure maintain a preset, uniform radial gap; thereby ensuring that the first lifting component 3421 can perform smooth, low-friction reciprocating linear motion along the axial direction of the inner hole, while avoiding unexpected radial offset or jamming.

[0047] Optionally, the first lifting assembly 3421 includes a first support bar 34211, a first support column 34212, and a first connecting plate 34213. Multiple first support bars 34211 are spaced apart along a first direction, and each first support bar 34211 extends along a second direction. The first connecting plate 34213 is spaced apart along a third direction on the side of the first support bar 34211 near the first power member 3422. Each first support bar 34211 is connected to the first connecting plate 34213 through at least one first support column 34212. The first power member 3422 is driven to connect to at least one first support bar 34211. The first direction, the second direction, and the third direction are perpendicular to each other.

[0048] Optionally, the first and second directions are horizontal, and the third direction is vertical. Multiple first support bars 34211 are arranged in a parallel and spaced manner, and the first support bars 34211 themselves extend along the second direction perpendicular to the first direction, thereby forming a basic support plane capable of bearing the force. The first connecting plate 34213 is located below the first support bar 34211, and its surface direction is approximately parallel to the plane formed by the first direction and the second direction. Each first support bar 34211 is rigidly connected to the first connecting plate 34213 through at least one first support column 34212. The first support column 34212 extends along the third direction, with one end fixed to the first support bar 34211 and the other end fixed to the first connecting plate 34213. Thus, a stable frame-type support structure with a certain height is formed between the first support bar 34211 and the first connecting plate 34213, thereby forming an integrated linkage structure for the first lifting assembly 3421, so that the first power component 3422 can easily drive the first lifting assembly 3421 to lift. The output end of the first power component 3422 is directly or indirectly connected to at least one first support bar 34211, so that the linear driving force generated by the first power component 3422 can directly act on the first support bar 34211, and then be transmitted to the entire first connecting plate 34213 through the first support column 34212, ultimately driving the entire first lifting assembly 3421 to move synchronously up and down as a whole, thereby improving the anti-eccentric load capacity and stability of the assembly during the lifting process.

[0049] Optionally, the second lifting assembly 3431 includes a second support bar 34311, a second support column 34312, and a second connecting plate 34313. Multiple second support bars 34311 are spaced apart along a first direction, and each second support bar 34311 extends along a second direction. The second connecting plate 34313 is spaced apart along a third direction on the side of the second support bar 34311 near the second power member 3432. Each second support bar 34311 is connected to the second connecting plate 34313 through at least one second support column 34312. The second power member 3432 is driven to connect to at least one second support bar 34311. At least some of the second support bars 34311 have breaks, and the breaks of multiple second support bars 34311 form a lifting space. The first direction, the second direction, and the third direction are perpendicular to each other.

[0050] Optionally, multiple second support bars 34311 are arranged parallel to each other at equal or unequal intervals along the first direction, and the main structure of each second support bar 34311 extends longitudinally along a second direction perpendicular to the first direction. Second connecting plates 34313 are spaced below the second support bars 34311, and each second support bar 34311 is rigidly connected to the second connecting plate 34313 through at least one second support column 34312. The second support column 34312 extends along a third direction, and its two ends are fixedly connected to the lower surface of the second support bar 34311 and the upper surface of the second connecting plate 34313, respectively, thereby transferring the load borne by the second support bar 34311 to the second connecting plate 34313 through the second support column 34312. The output end of the second power component 3432 is driven to at least one second support bar 34311 via a mechanical transmission component, thereby directly applying power to the second support bar 34311. This power, through the second support column 34312, drives the entire second connecting plate 34313 and its connected structure to achieve lifting and lowering movement along a third direction. To accommodate the passage of the first lifting assembly 3421, at least some of the second support bars 34311 have cuts on their bodies extending along a second direction. These cuts refer to through-holes or notches formed after partial material removal from the support bar entity. When all the second support bars 34311 with cuts are assembled and arranged according to their predetermined positions, these cuts, located on multiple support bars, are spatially aligned and continuously arranged, collectively forming a vertical channel penetrating along a third direction inside the second lifting assembly 3431. This channel serves as the lifting space for the first lifting assembly 3421 to pass through. The break allows the second support bar 34311 to maintain its main load-bearing structure and connection function with the second support column 34312, while providing a movable path for the first lifting component 3421, thereby realizing the nested layout of the two lifting components in space without affecting their independent lifting functions.

[0051] Optionally, the lifting device also includes a load cell 344, which is mounted on the base 341. The load cell 344 is rigidly mounted on the base 341 by bolts or welding. In addition to achieving precise spatial positioning and motion control, the load cell 344 enables the lifting device to have online weighing and load monitoring capabilities, thereby protecting the safety of the equipment and expanding the comprehensive application range of the device.

[0052] Optionally, the rotating base 32 can be a large slewing bearing structure installed at the center of the wrapping station, with its rotation axis extending along the vertical direction. The rotating base 32 is driven by an independent drive motor via a reducer. A conveying assembly is installed on the rotating base 32, configured as a roller assembly, used to transport the product 20 to be packaged to a preset position on the wrapping station and to deliver the product 20 after packaging. A film feeding mechanism 35 is installed on the machine base 31. The fabric roll is transferred to the wrapping station via the conveying assembly; a lifting device installed below the rollers rises, and the support bars in the lifting assembly rise upwards through the gap between the rollers, thereby lifting the product 20; subsequently, the pressing mechanism at the top of the wrapping device 3 is driven to press the product 20 down. After the product 20 is fixed, one end of the stretch film is pulled out and clamped and fixed to the edge of the roller assembly by the film clamping assembly 352 in the film feeding mechanism 35; then the rotating base 32 is driven to rotate to drive the product 20 to rotate, and the film clamping mechanism clamps the end of the stretch film and rotates together with the rotating base 32 and the product 20, thereby wrapping the film on the outer surface of the material. After the wrapping is completed, the stretch film is cut to complete the wrapping work of the product 20.

[0053] Optionally, the conveying assembly has multiple rotating rollers 331 spaced apart along a first direction, the rotating rollers 331 extending along a second direction, the interval between any two adjacent rotating rollers 331 forming a clearance gap, and the multiple clearance gaps forming a clearance space; the first lifting assembly 3421 has multiple first support bars 34211 spaced apart along the first direction, the first support bars 34211 extending along the second direction, and the multiple first support bars 34211 are arranged one-to-one in the clearance gap; and / or, the second lifting assembly 3431 has multiple second support bars 34311 spaced apart along the first direction, the second support bars 34311 extending along the second direction, and the multiple second support bars 34311 are arranged one-to-one in the clearance gap; the first direction, the second direction, and the third direction are perpendicular to each other.

[0054] Optionally, the conveying component can be supported and conveyed by multiple rotating rollers 331. These rotating rollers 331 are arranged in parallel with equal or unequal spacing along a first direction, and the axial direction of each rotating roller 331 extends along a second direction perpendicular to the first direction. Each rotating roller 331 is driven synchronously by a motor installed inside the rotating base 32 via a chain, belt, or gear set, thereby forming a continuous linear moving surface on its upper surface to convey the product 20. An elongated gap extending along the second direction is formed between any two adjacent rotating rollers 331, which is configured as a clearance gap. The clearance gaps generated by all the parallel rotating rollers 331 together spatially constitute a clearance space for the lifting component to move. Corresponding to this structure, the first lifting assembly 3421 has multiple first support bars 34211 spaced apart along the first direction, with their spacing matching the spacing of the rotating rollers 331 of the conveying assembly. This ensures that when each first support bar 34211 extends along the second direction, its cross-section is precisely located directly below a clearance gap, and it extends upward through the clearance gap when a lifting action is required. This achieves an interlaced layout of the support bars and rotating rollers 331 on the horizontal projection plane, meaning that the support bars and rotating rollers 331 do not overlap in the plane formed by the first and second directions. Similarly, the second lifting assembly 3431 has multiple second support bars 34311 spaced apart along the first direction, arranged in the same manner, with their extension direction being the second direction. Each second support bar 34311 is also correspondingly positioned within a clearance gap, ensuring that the relative movements of the conveying assembly, the first lifting assembly 3421, and the second lifting assembly 3431 do not affect each other. This setup ensures that on the same working plane at the wrapping station, the rotating roller 331 of the conveying component can rotate freely to complete the conveying of the product 20, while the first support bar 34211 and the second support bar 34311 can independently move up and down in a third direction within the clearance gap. The movements of the three do not interfere with each other, thus realizing the normal operation of the wrapping device 3.

[0055] Optionally, the film feeding mechanism 35 includes a power assembly 351 and a film clamping assembly 352. The power assembly 351 is used to mount the stretch film roll and drive the stretch film roll to move along a third direction. The film clamping assembly 352 is mounted on the rotating base 32 and located on the periphery of the wrapping station. The film clamping assembly 352 is used to clamp one end of the stretch film roll and drive one end of the stretch film roll to rotate with the rotating base 32. Optionally, the power assembly 351 has a mandrel for holding the stretch film roll. The mandrel can use a pneumatic expansion or mechanical locking device to fix film rolls of different inner diameters, and a brake or servo motor can be used to control the tension of the film roll rotation and feeding. The power assembly 351 is mounted on a vertically guided linear motion module. The guide rail axis of the module extends along a third direction, enabling precise reciprocating lifting and lowering movement along the third direction. The power assembly 351 is used to drive the entire roll of stretch film on it to move along a third direction during the wrapping process according to a preset program, so as to cooperate with the rotating product 20 to achieve spiral winding or aligned wrapping. The film clamping assembly 352 is installed on the edge of the rotating base 32 and is located in the outer space of the wrapping station. The film clamping assembly 352 includes a gripper mechanism driven by a cylinder or electric actuator, which can perform opening and closing actions. The film clamping assembly 352 is used to clamp and fix the end of the stretch film at the beginning of each wrapping cycle; when the rotating base 32 is driven by the drive motor to start rotating, since the film clamping assembly 352 is fixed to the rotating base 32, the film end clamped by it will move in a circle around the product 20 together with the rotating base 32, thereby wrapping the stretch film around and attaching it to the outer peripheral surface of the product 20, completing the wrapping work.

[0056] During the wrapping process, the power unit 351 first feeds the film roll to the standby height. The operator or auxiliary equipment guides the end of the film to the clamping assembly 352 and clamps it. Then, the rotating base 32 starts to rotate, and the clamping assembly 352 drives the film to wrap around the product 20 once. At this time, the power unit 351 may start to move synchronously in a third direction according to the winding method. After the basic winding is completed, the clamping assembly 352 releases, and the end of the film adheres to the product 20 itself or the already wrapped film layer. Subsequent continuous packaging is carried out by the rotating base 32 driving the product 20 to continue rotating. At the same time, the power unit 351 moves in a third direction according to the preset movement method, so that the film is continuously pulled out from the film roll and covers the surface of the product 20 in a spiral wrapping manner until the preset number of wrapping layers or height is reached. Then, the cutting mechanism cuts the film, thereby completing the wrapping of the product 20.

[0057] Optionally, the wrapping device 3 further includes a film-cutting mechanism 36, which is movably mounted on the machine base 31 and located on the periphery of the rotating station; and / or, the wrapping device 3 further includes a guiding mechanism 37, which has guide rollers extending in a third direction. The guide rollers are positioned corresponding to the wrapping station and are radially spaced around the outer periphery of the product 20. The guide rollers are used to abut against the wrapping film to guide the wrapping direction of the wrapping film. The film-cutting mechanism 36 cuts the continuously output wrapping film from the film roll after each wrapping cycle reaches a preset number of wrapping layers or packaging height using a dedicated cutting component. When the packaging reaches the set requirements, the control system issues a command to drive the cutting component to move along a preset path to the position where it contacts the film. The film is cut at a specific point by mechanical shearing, thermal melting separation, or high-frequency vibration. The execution unit then resets to the waiting position to prepare for the next packaging cycle. Meanwhile, the coating device 3 also includes a guiding mechanism 37, which includes a bracket fixedly installed on the machine base 31 and a guide roller installed on the bracket. The axis of the guide roller extends along the vertical height direction, and the length of the guide roller matches the height of the product 20. The guide rollers correspond to the spatial distribution of the coating station and are arranged radially around the product 20 along the rotating base 32.

[0058] During the wrapping process, the wrapping film pulled from the film roll adheres to the surface of the product 20 before or simultaneously with it. The guide roller, through its freely rotating body and contact and friction with the film, constrains and guides the film's movement path. This ensures that the film adheres smoothly to the surface of the product 20 at a predetermined angle and tension, and, according to packaging process requirements, coordinates with the rotation of the rotating base 32 and the lifting of the power component 351 to guide the film's winding trajectory axially or radially. The radial position of the guide roller can be adjusted according to the packaging requirements of products 20 of different sizes. The film cutting mechanism 36 and the guiding mechanism 37, as auxiliary functional units, work in conjunction with the film feeding mechanism 35, the rotating base 32, and the lifting device to achieve automated wrapping of the product 20.

[0059] Optionally, the wrapping device 3 further includes a pressing mechanism 38, which is mounted on the machine base 31. The pressing mechanism 38 has a movable pressure roller that extends along a third direction. The pressure roller abuts against the outer periphery of the product 20 through the plastic film and corner protector paper 30 to press the corner protector paper 30 onto the outer periphery of the product 20. The wrapping device 3 is also equipped with a pressing mechanism 38; this pressing mechanism 38 is mounted on the frame of the machine base 31 of the wrapping device 3 and is located beside the wrapping station so that when the product 20 needs to be wrapped with corner protector paper 30, it can press the relatively hard paper to avoid the problem that the corner protector paper 30 is harder than the wrapping film, causing the wrapping film to fail to adhere to the outer surface of the product 20, thus avoiding affecting the wrapping quality.

[0060] In one embodiment, the paper sheet machine 4 includes: a storage device 41, a picking device 42, and a conveying device 43. The storage device 41 includes at least one set of storage and conveying modules for storing corner protector paper and conveying the corner protector paper along a first direction; the picking device 42 is located on one side of the storage device 41 along the first direction, and the picking device 42 includes at least one set of picking modules, each including a picking mechanism and a receiving component. The receiving component has a transition groove for accommodating the corner protector paper, and the picking mechanism is used to sequentially pick up the corner protector paper from the storage device and transfer it to the transition groove; the conveying device 43 is located on one side of the picking device 42 along a second direction, and the conveying device 43 includes at least one set of conveying modules for picking up the corner protector paper from the transition groove along the second direction and transferring it to the wrapping device 3; the first direction and the second direction intersect.

[0061] In this embodiment, the storage device 41 stores a certain number of corner protector cardboard pieces and pushes the foremost single corner protector cardboard piece horizontally a predetermined distance along the first direction for easy subsequent gripping. The picking device 42 is located on one side of the storage device 41 along the first direction and is aligned with the output end of the storage device 41. A transition groove with a shape matching the contour of the corner protector cardboard piece is machined on the receiving part for temporarily accommodating a single corner protector cardboard piece. The picking mechanism is usually installed above the receiving part. After the storage and conveying module pushes the corner protector cardboard piece to the predetermined position, the picking mechanism picks up the outermost cardboard piece by negative pressure adsorption, and then transfers and releases it into the transition groove through the linear module. The transition groove can correct the position of the cardboard piece and keep it in a straight posture. The conveying device 43 is used to pick up or suck up the cardboard piece from the transition groove after it falls into it, and then move the cardboard piece along a second direction intersecting the first direction, accurately transferring and placing it at the designated corner position or surface of the product 20 in the wrapping station. The paper sheeter 4 can automatically and accurately feed the corner protector paper into the outer periphery of the product 20 within a preset time when the wrapping device 3 wraps the product 20, so as to realize the simultaneous automated packaging of the product 20 and the protective material.

[0062] In this embodiment, the storage device 41 includes a support frame 412, a storage and conveying module 411, and a separation module. The storage and conveying module 411 is disposed on the support frame 412 and includes a storage bin 4112 and a feeding drive assembly. The storage bin 4112 is used to store multiple pieces of corner protector cardboard 30 stacked along a first direction. The feeding drive assembly is used to drive the multiple pieces of corner protector cardboard 30 to move along the first direction, so as to push the multiple pieces of corner protector cardboard 30 towards the output port of the storage bin 4112. After being picked up from the output port of the storage bin 4112, the separation module is used to limit the remaining corner protector cardboard 30 within the storage bin 4112. The separation module includes a first separation component and a second separation component. The first separation component is located above the storage bin 4112 and is used to flexibly abut against the multiple corner protector cardboard 30 from top to bottom. The second separation component is located at the output port of the storage bin 4112 and is used to flexibly abut against the corner protector cardboard 30 located at the output port of the storage bin 4112 along a first direction.

[0063] In this embodiment, the first direction can be the front-back direction, and the second direction can be the left-right direction. The storage bin 4112 of the storage and conveying module 411 extends along the second direction. Multiple corner protector cardboard pieces 30 are stacked along the first direction and then vertically placed into the storage bin 4112. The feeding drive component is located on the side of the storage bin 4112 away from the output port. The feeding drive component may include a servo drive component. The servo drive component may include a pusher plate that can reciprocate along the first direction. When the corner protector cardboard piece 30 located at the output port end is picked up, the pusher plate pushes the corner protector cardboard pieces 30 stacked along the first direction to move towards the output port along the first direction, pushing the corner protector cardboard piece 30 to the output port position to replenish the corner protector cardboard piece 30.

[0064] It is understandable that, since multiple corner protector cardboard pieces 30 are stacked along the first direction, when picking up the corner protector cardboard piece 30 at the output port, the corner protector cardboard piece 30 closest to or located at the output port may be picked up simultaneously due to adhesion and adsorption. This results in an uncertain number of corner protector cardboard pieces 30 picked up at one time, possibly multiple pieces, or the corner protector cardboard pieces 30 behind may fall off under the suction and traction, leading to material waste.

[0065] To this end, the material storage and conveying module 411 includes a separation module, which includes a first separation component and a second separation component. The first separation component, located above the material storage bin 4112, flexibly abuts against multiple pieces of corner protector cardboard 30 from top to bottom, so that the multiple pieces of corner protector cardboard 30 are limited vertically by the material storage bin 4112 and the first separation component. The second separation component, located at the output port of the material storage bin 4112, flexibly abuts against the corner protector cardboard 30 located at the output port along a first direction towards the feeding drive component, so that the multiple pieces of corner protector cardboard 30 are limited vertically by the second separation component and the feeding drive component along the first direction, ensuring that the multiple pieces of corner protector cardboard 30 are stably limited when they are not discharged through the output port. Furthermore, since the first separating component flexibly abuts against the multiple corner protector cardboard pieces 30 from top to bottom, and the second separating component flexibly abuts against the corner protector cardboard pieces 30 located at the output port, when a single corner protector cardboard piece 30 is picked up at the output port, the flexible abutment generates appropriate resistance, ensuring that the cardboard pieces behind are not pulled from the output port by the cardboard pieces picked up in front. At the same time, the resistance generated by the flexible abutment is small, so when the cardboard pieces are picked up and moved out of the output port, they will not rub against the separating module and cause damage. Meanwhile, when the feeding drive component pushes the multiple corner protector cardboard pieces 30 toward the output port of the storage bin 4112 to replenish material, the friction between the multiple corner protector cardboard pieces 30 and the separating module is small, so the corner protector cardboard pieces 30 will not be damaged.

[0066] The first separation module may include a first dispensing brush 41131, which flexibly abuts against multiple corner protector cardboard pieces 30 from top to bottom. The second separation module may include a second dispensing brush 41132, which flexibly abuts against the corner protector cardboard pieces 30 located at the output port from front to back. The second separation module may be located below the first separation module, and the second dispensing brush 41132 may extend from bottom to top. There are multiple ways to pick up a single corner protector cardboard piece 30 from the output port of the storage bin 4112. It can be done by adsorbing the corner protector cardboard piece 30 with a suction cup or by gripping the corner protector cardboard piece 30 with a claw. The specific method is not limited.

[0067] Optionally, the first separation component includes a first mounting plate and a first flexible member disposed below the first mounting plate. The first mounting plate extends along a first direction, and the first flexible member is arranged on the first mounting plate along the first direction. The first flexible member is used to flexibly abut against multiple pieces of corner protector cardboard 30 from top to bottom. The flexible component can be the bristles of the first separating brush 41131, which are arranged along the first direction and extend in the vertical direction. It is understood that since multiple corner protector cardboard pieces 30 are stacked along the first direction, if the multiple limiting components are limited only by the second separating component and the feeding drive component along the first direction, the multiple corner protector cardboard pieces 30 may not be sufficiently limited, resulting in a loose stack. Therefore, a first mounting plate is set to extend along the first direction, so that the first mounting plate can cover the multiple corner protector cardboard pieces 30, thereby allowing the first flexible component located below the first mounting plate to flexibly abut against the multiple corner protector cardboard pieces 30 from top to bottom. This ensures that the multiple corner protector cardboard pieces 30 can be limited by the first flexible component and the storage bin 4112 in the vertical direction, ensuring that the multiple corner protector cardboard pieces 30 can maintain a stacked state and preventing the multiple corner protector cardboard pieces 30 from becoming loose, which would make it difficult to pick up the corner protector cardboard pieces 30 from the output end.

[0068] Optionally, the first flexible component includes a first flexible segment and a second flexible segment. The second flexible segment extends from the first flexible segment to the output port of the storage bin 4112. The first flexible segment is used to flexibly abut against the upper part of the multiple corner protector cardboard sheets 30 from top to bottom, and the second flexible segment is used to flexibly abut against the corner protector cardboard sheets 30 located at the output end along the first direction. It is understood that if the second separating component extends from bottom to top and flexibly abuts against the corner protector cardboard sheets 30 located at the output port, it will result in greater discharge resistance of the corner protector cardboard sheets 30 at the output port, affecting the picking up of the corner protector cardboard sheets 30. If the second separating component only flexibly abuts against the lower end of the corner protector cardboard sheets 30 at the output port, it will result in a lack of flexible restraint on the upper side of the output port for the corner protector cardboard sheets 30, causing the upper part of the rear corner protector cardboard sheets 30 to be easily pulled and displaced by the front corner protector cardboard sheets 30 that have been picked up. To this end, the first flexible component is provided, including a first flexible segment and a second flexible segment, such that the second flexible segment extends from the first flexible segment to the output port of the storage bin 4112. When the first flexible component extends from top to bottom, the second flexible segment can abut against the upper side of the corner protector cardboard 30, while the second separation component can abut against the lower side of the corner protector cardboard 30, so that there is a gap between the second flexible segment and the second separation component. The corner protector cardboard 30 located at the output port of the storage bin 4112 can be picked up through this gap, ensuring that the picking resistance of the corner protector cardboard 30 is small, while ensuring the flexible limit of the rear corner protector cardboard 30.

[0069] Optionally, the first separation assembly further includes a mounting frame, on which a first mounting plate is movably mounted vertically, allowing the distance between the first flexible element and the first mounting plate to be adjustable. This configuration allows the distance between the first flexible element and the bottom wall of the storage bin 4112 to be adjustable, enabling the storage and conveying module 411 to accommodate the storage and placement of corner protectors 30 at different heights. The first separation assembly may also include an adjusting screw, rotatably mounted above the first mounting plate and threadedly connected to the mounting frame. Rotating the adjusting screw allows for vertical adjustment of the first mounting plate, thereby adjusting the vertical position of the first flexible element.

[0070] Optionally, a second separation component is disposed below the first separation component. The second separation component includes a second flexible member extending from bottom to top, which flexibly abuts against the lower end of the corner protector cardboard 30 along a first direction. The second separation component may further include a second mounting plate, with the second flexible member disposed on the second mounting plate and extending upwards from the second mounting plate to the lower side of the output port of the storage hopper 4112. This allows the second flexible member to flexibly abut against the lower side of the corner protector cardboard 30, while the second flexible segment of the first flexible member can flexibly abut against the upper side of the corner protector cardboard 30. This ensures that the rear corner protector cardboard 30 is stably limited when picking it up, and a clearance can be reserved between the second flexible segment and the second flexible member for the suction cup or gripper to pick up the cardboard from the output port.

[0071] Optionally, the first separation component is provided in multiple sets, and the multiple sets of the first separation component are arranged at intervals along the second direction. Since the single corner protector cardboard 30 extends along the second direction, when multiple sets of the first separation component are arranged at intervals along the second direction, the multiple sets of the first separation component can flexibly abut against multiple parts of the multiple corner protector cardboard 30 along the second direction from top to bottom, ensuring that the limiting resistance of each part of the corner protector cardboard 30 along the second direction is approximately equal, thereby ensuring that after the cardboard at the output position is picked up, the multiple cardboard pieces behind it will not shift or deform.

[0072] Optionally, multiple sets of second separation components are provided, and these multiple sets of second separation components are spaced apart along the second direction at the output port of the storage bin 4112. It is understood that when a single piece of corner protector cardboard 30 extends along the second direction, and multiple sets of second separation components are provided and spaced apart along the second direction, the limiting resistance experienced by the corner protector cardboard 30 along the second direction is approximately equal when picking up the single piece of corner protector cardboard 30 at the output port, facilitating the uniform application of picking force to the corner protector cardboard 30. Furthermore, limiting resistance can be uniformly applied to the rear corner protector cardboard 30 along the second direction to ensure that the rear corner protector cardboard 30 is uniformly limited at all points.

[0073] Optionally, the first separation component and / or the second separation component are configured as a dispensing brush. In this way, the bristles of the dispensing brush can flexibly abut against the corner protector cardboard 30, generating appropriate limiting resistance to prevent the rear corner protector cardboard 30 from being pulled off by the front corner protector cardboard 30, while also preventing damage to the corner protector cardboard 30. The separation module also includes a limiting component located at the output port of the storage bin 4112. When the feeding drive component pushes multiple corner protector cardboard pieces 30 towards the output port of the storage bin 4112, the limiting component rigidly abuts against the corner protector cardboard 30 along a first direction to limit the corner protector cardboard 30 from moving out of the storage bin 4112.

[0074] Understandably, at the output port of storage bin 4112, if only the first and second flexible members flexibly abut against the upper and lower sides of the corner protector cardboard 30, the feeding drive assembly might drive multiple corner protector cardboard pieces 30 toward the output port, potentially resulting in excessive driving force and insufficient limiting resistance from the first and second flexible members. Therefore, a limiting component is also installed at the output port of storage bin 4112. This limiting component rigidly abuts against the corner protector cardboard 30 along the first direction, thus restricting the corner protector cardboard 30 from moving out when the feeding drive assembly drives multiple corner protector cardboard pieces 30 toward the output port. The limiting component may include a limiting cylinder and a limiting rod. The limiting cylinder drives the limiting rod to move up and down. When the limiting rod extends upward, the corner protector cardboard 30 located at the output port of the storage bin 4112 can abut against the limiting rod. When the corner protector cardboard 30 is picked up from the output port of the storage bin 4112, the limiting cylinder can drive the limiting rod to move downward, so that it does not rigidly abut against the corner protector cardboard 30, thus ensuring the material discharge operation of the storage device 41. After the corner protector cardboard 30 material in the storage and conveying module 411 has been discharged, in order to facilitate the replenishment of material to the storage and conveying module 411, the storage device 41 may optionally include a hopper drive assembly. The hopper drive assembly drives and connects to the storage and conveying module 411. The hopper drive assembly is used to drive the storage and conveying module 411 to reciprocate along the second direction. After the multiple corner protector cardboard 30 pieces in the storage hopper 4112 have been discharged, the hopper drive assembly is used to drive the storage and conveying module 411 to move out of the support frame 412 along the second direction so that the storage hopper 4112 can be replenished with corner protector cardboard 30.

[0075] Optionally, the first separation component can be fixed on the support frame 412, the material storage and conveying module 411 can be movably installed on the support frame 412 along the second direction, and the second separation component and the limiting component can be set in the material storage and conveying module 411, moving back and forth along the second direction with the material storage and conveying module 411. After the multiple corner protector cardboard pieces 30 in the storage bin 4112 are picked up in sequence, the storage conveying module 411 can be moved along the second direction and removed from the support frame 412 by the bin drive component. The operator can put the multiple corner protector cardboard pieces 30 stacked along the first direction into the storage bin 4112 from top to bottom. The multiple corner protector cardboard pieces 30 are limited and squeezed in the storage bin 4112 by the push plate of the feeding drive component, the limiting rod of the limiting component, and the second flexible part of the second separation component. Then, the storage conveying module 411 is driven back to its original position by the bin drive component. At this time, the first flexible part of the first separation component flexibly abuts against the multiple corner protector cardboard pieces 30 and cooperates with the bottom wall of the storage bin 4112 to limit the multiple corner protector cardboard pieces 30 to the upper and lower positions.

[0076] Optionally, the hopper drive assembly is provided in two sets, and the two sets of hopper drive assemblies are respectively located on both sides of the storage hopper 4112 along the second direction. Each set of hopper drive assemblies includes a hopper drive component and a guide component. The storage hopper 4112 is movably connected to the support frame 412 along the first direction through the guide component. The hopper drive component drives the connection between the storage hopper 4112 and the support frame 412.

[0077] It is understandable that when the material storage and conveying module 411 is equipped with two sets of hopper drive components, and the two sets of hopper drive components are respectively located on both sides of the material storage hopper 4112 along the second direction, it can ensure that the material storage and conveying module 411 is subjected to balanced forces when sliding along the second direction, and will not jam. The guide component can be installed on the support frame 412, and the material storage and conveying module 411 can be slidably installed on the guide component. The guide component can be a ball linear guide roller or a guide chain. The hopper drive component can be a cylinder or a hydraulic cylinder; no specific limitation is made here.

[0078] Optionally, the material storage and conveying modules 411 are arranged in two groups, with the two groups of material storage and conveying modules 411 spaced apart in the vertical direction. Each group of material storage and conveying modules 411 may be equipped with a corresponding set of hopper drive components, or the two groups of material storage and conveying modules 411 may be driven by the same set of hopper drive components, which is not limited here.

[0079] Optionally, the storage device 41 can be used in the paper sheet machine 4. The paper sheet machine 4 may include the storage device 41, a feeding mechanism, and a conveying device 43. The feeding mechanism picks up the corner protector paper sheets 30 from the storage device 41 using a suction cup. After picking up a single corner protector paper sheet 30 from the storage bin 4112 of the storage and conveying module 411, the feeding mechanism conveys it to the conveying device 43. The conveying device 43 conveys the corner protector paper sheets 30 to the packaging machine at a certain angle. The packaging machine wraps the corner protector paper sheets 30 around the upper and lower ends of the fabric roll, protecting the two angular ends of the fabric roll and preventing damage. Therefore, in this embodiment, the storage and conveying module 411 is configured as two sets, spaced apart vertically, so that the subsequent conveying device 43 can simultaneously convey two sets of vertically spaced corner protector paper sheets 30 to the packaging machine. The corner protector cardboard 30 may include serrated segments and a body segment. When the corner protector cardboard 30 is stacked in the storage bin 4112 along the first direction, the serrated segments of the corner protector cardboard 30 located in the upper storage conveying module 411 face upwards, and the serrated segments of the corner protector cardboard 30 located in the lower storage conveying module 411 face downwards. When the corner protector cardboard 30 is bent into a roll, the serrated segments of the corner protector cardboard 30 can be folded. Therefore, when the subsequent packaging machine wraps the corner protector cardboard 30 around both ends of the roll, the serrated segments of the two sets of corner protector cardboard 30 can respectively wrap the upper and lower end faces of the roll, and the body segment of the corner protector cardboard 30 wraps around the periphery of the roll, forming a wrapping around both ends of the roll.

[0080] Optionally, the material handling device 42 includes a frame 421 and at least one set of material handling modules 422 disposed on the frame 421. Each material handling module 422 includes a drive mechanism 4221, a material handling mechanism 4222, and a receiving component 4223. The drive mechanism 4221 is disposed on the frame 421 and includes a support 42211 and a translation drive assembly 42212 disposed on the support 42211. The material handling mechanism 4222 is connected to the translation drive assembly 42212, which drives the material handling mechanism 4222 to perform translational movement along a first direction. The material handling mechanism 4222 is used to pick up or release materials. The receiving component 4223 is connected to the support 42211 and is located along a third direction at the material handling module. Below the material receiving mechanism 4222, the receiving component 4223 has a transition groove 42231 extending along the second direction. The transition groove 42231 has an inlet and an outlet. The inlet is located at the top of the transition groove 42231 and is used to receive the material released by the material receiving mechanism 4222. The outlet is located at one end of the transition groove 42231 along the second direction and is used to output the material in the transition groove 42231 along the third direction. The first direction, the third direction, and the second direction are perpendicular to each other.

[0081] The material handling device 42 can be used in a paper sheeter 4, which may include a material handling device 42, a storage device 41, and a feeding device 1. The material handling device 42 is used to pick up the material (e.g., corner protector cardboard 30) stored in the storage device 41 and then convey the material to the feeding device 1. Of course, the material handling device 42 can also be used to pick up other materials with similar structures. The paper sheeter 4 can be applied to a packaging production line, which may include a paper sheeter 4 and a film winding machine. The film winding machine is used to perform film winding operations on the outer periphery of the roll product 20 (e.g., non-woven fabric roll). The paper sheeter 4 is used to feed the corner protector cardboard 30 to the film winding machine and uses the film winding machine to wind the corner protector cardboard 30 around the axial corners of the roll product 20 during the film winding process, so as to protect the corners of the roll product 20.

[0082] To facilitate the winding of the corner protector 30 onto the end corners of the roll product 20, the corner protector 30 may include a strip-shaped paper body and a serrated portion on one side of the paper body in the width direction. The serrated portion has multiple notches spaced apart along the length direction of the paper body, so that serrations are formed between adjacent notches. The feeding device 1 of the paper sheet machine 4 can transport one end of the corner protector 30 to the angle between the end of the roll product 20 and the stretch film. When the corner protector 30 enters the winding position, the paper body adheres to the outer peripheral surface of the roll product 20, and the serrated portion extends beyond the end face of the roll product 20. Under the tension of the stretch film, it is pressed against the end face of the material, so that the serrated portion of the corner protector 30 can automatically fold into a right angle relative to the paper body, thereby protecting the end corners of the roll product 20.

[0083] The material handling device 42 includes a frame 421 and material handling modules 422 mounted on the frame 421. The number of material handling modules 422 can be set according to actual needs, and can be one, two, or more. For example, in a packaging production line for roll product 20, since both ends of the roll product 20 need to be wound with corner protectors 30, the material handling device 42 can include two sets of material handling modules 422 spaced apart along the height direction of the frame 421. The lower material handling module 422b is used to pick up the lower corner protectors 30 and convey them to the lower end of the roll product 20 through the feeding device 1 for winding. The upper material handling module 422a is used to pick up the upper corner protectors 30 and convey them to the upper end of the roll product 20 through the feeding device 1 for winding. The feeding device 1 can receive the corner protectors 30 conveyed by the material handling modules 422 through a belt conveyor mechanism and convey them to the film winding machine.

[0084] The following describes the specific structure of one set of material handling modules 422. When there are multiple sets of material handling modules 422, the structures of each material handling module 422 are the same or similar.

[0085] In this embodiment, the first direction can be the width direction of the material picking module 422 (e.g., the front-to-back direction), the third direction can be the height direction of the material picking module 422 (e.g., the up-down direction), and the second direction can be the length direction of the material picking module 422 (e.g., the left-to-right direction).

[0086] The material handling module 422 includes a drive mechanism 4221, a material handling mechanism 4222, and a receiving component 4223. The drive mechanism 4221 drives the material handling mechanism 4222 to move relative to the frame 421, enabling the material handling mechanism 4222 to move to a suitable position to pick up the corner protector cardboard 30. For example, in a paper machine 4, the material handling device 42 and the storage device 41 are arranged side-by-side along a first direction. The drive mechanism 4221 includes a translation drive module that is driven by the material handling mechanism 4222. The translation drive module drives the material handling mechanism 4222 to move along the first direction, enabling the material handling mechanism 4222 to pick up the corner protector cardboard 30 from the storage device 41. The translation drive module includes, but is not limited to, cylinders, hydraulic cylinders, linear motors, electric push rods, or other modules capable of linear drive. The receiving component 4223 is located below the picking module 422. The receiving component 4223 has a transition groove 42231, with a feed inlet at the top. This allows the picking module 422 to release the corner protector cardboard 30 from top to bottom into the transition groove 42231 via the feed inlet. It is understood that the corner protector cardboard 30 is typically elongated. To ensure the corner protector cardboard 30 can be stably contained within the transition groove 42231, the receiving component 4223 and the transition groove 42231 can be configured as elongated strips aligned with the extending direction of the corner protector cardboard 30. One end of the transition groove 42231 along its length is also provided with a discharge inlet, which can connect with the feeding device 1. Understandably, the width of the transition groove 42231 should not be too large, usually slightly larger than the thickness of the corner protector paperboard 30. This ensures that the corner protector paperboard 30 remains perpendicular to the bottom wall of the transition groove 42231 within the transition groove 42231. In other words, the transition groove 42231 can position the corner protector paperboard 30 so that it can continue to be conveyed towards the downstream feeding device 1.

[0087] For example, the feeding device 1 can use a belt conveyor mechanism for feeding. The belt conveyor mechanism includes two conveyor belts arranged opposite each other, forming a clamping groove between the two conveyor belts for accommodating the corner protector cardboard 30. The feeding port of the clamping groove can connect with the discharge port of the transition groove 42231. When the picking module 422 releases the corner protector cardboard 30 into the transition groove 42231, the end of the corner protector cardboard 30 can also fall into the clamping groove of the belt conveyor mechanism. Then, the belt conveyor mechanism transports the corner protector cardboard 30 to the downstream station. As the belt conveyor mechanism drives the corner protector cardboard 30 to move, the corner protector cardboard 30 in the transition groove 42231 can move towards the belt conveyor mechanism through the discharge port. In this way, the receiving component 4223 can realize the buffering and positioning of the corner protector cardboard 30, so as to achieve precise delivery of the corner protector cardboard 30 to the feeding device 1.

[0088] At least one set of material handling modules 422 is provided on the frame 421. Each material handling module 422 includes a drive mechanism 4221, a material handling mechanism 4222, and a receiving member 4223. When applied to the paper sheet machine 4, the material handling mechanism 4222 is driven to extend along a first direction to the material handling position to pick up material (e.g., corner protector 30) by the translation drive assembly 42212 of the drive mechanism 4221, and then retracts back to its original position along the first direction. The material handling mechanism 4222 releases the picked-up corner protector 30 so that the corner protector 30 can fall into the transition groove 42231 for buffering through the feed slot at the top of the receiving member 4223. The discharge port of the transition groove 42231 can be used for precise docking with the feeding port of the feeding device 1. Simultaneously, the transition groove 42231 can position the corner protector cardboard 30 to ensure it does not tilt, thus facilitating its smooth transfer from the transition groove 42231 through the discharge port to the feeding device 1. This technical solution enables the buffering and positioning of the corner protector cardboard 30, achieving precise delivery of the corner protector cardboard 30.

[0089] In order to enable the material picking mechanism 4222 to pick up materials at different heights more accurately, the drive mechanism 4221 may optionally include a lifting drive assembly 42213 disposed on the frame 421. The lifting drive assembly 42213 is drivenly connected to the support 42211 and is used to drive the support 42211 to move up and down relative to the frame 421 in a third direction.

[0090] Optionally, the lifting drive assembly 42213 is driven to connect with the bracket 42211. The lifting drive assembly 42213 drives the bracket 42211 to move up and down, which in turn drives the translation drive assembly 42212, the material picking mechanism 4222, and the receiving component 4223 to move up and down as a whole. Thus, even if the position of the material picking mechanism 4222 changes along a third direction, the receiving component 4223 remains below the material picking mechanism 4222. This allows the material picking mechanism 4222 to easily release the material into the transition groove 42231 of the receiving component 4223 after picking it up, improving material transfer efficiency. The lifting drive assembly 42213 may include, but is not limited to, mechanisms using cylinders, hydraulic cylinders, electric push rods, servo motors, and ball screws to achieve the lifting drive.

[0091] For example, the frame 421 is provided with two sets of material handling modules 422 spaced apart along its height direction (i.e., the third direction), namely an upper material handling module 422a and a lower material handling module 422b. Both the upper drive module and the lower material handling module 422b include a lifting drive assembly 42213. The lifting drive assembly 42213 of the upper material handling module 422a can use a servo motor and ball screw mechanism to drive the material handling mechanism 4222 for lifting and lowering movements, thus giving the upper material handling mechanism 4222 a larger stroke and higher motion accuracy. The lifting drive assembly 42213 of the lower material handling module 422b can use a cylinder to drive the material handling mechanism 4222 for lifting and lowering movements, resulting in a simpler structure, smaller footprint, and lower cost.

[0092] To ensure the stability of the material handling mechanism 4222's translational movement along the first direction, the drive mechanism 4221 may optionally include a guide assembly 42214 disposed on the support 42211. The material handling mechanism 4222 is movably connected to the support 42211 via the guide assembly 42214, which guides the movement of the material handling mechanism 4222 relative to the support 42211 along the first direction. The guide assembly 42214 may include, but is not limited to, linear guides or linear bearing pairs for guidance.

[0093] For example, the guide assembly 42214 includes at least one linear bearing pair, which includes a linear bearing fixed to the bracket 42211 and a guide shaft passing through the linear bearing. The guide shaft extends along a first direction, and one end of the guide shaft is connected to the picking mechanism 4222. When the translation drive module drives the picking mechanism 4222 to move relative to the bracket 42211 along the first direction, the cooperation between the linear bearing and the guide shaft can achieve guidance along the first direction, making the movement of the picking mechanism 4222 more stable and reliable. Optionally, the guide assembly 42214 includes multiple linear bearing pairs, which can further improve the movement stability of the picking mechanism 4222, and also provide a certain support for the picking mechanism 4222, ensuring the installation reliability of the picking mechanism 4222.

[0094] Understandably, when the transition groove 42231 of the receiving component 4223 is used to receive the corner protector cardboard 30, since the width of the transition groove 42231 should not be too wide, the opening width of the feed groove of the transition groove 42231 is usually also relatively narrow.

[0095] To ensure that the picking mechanism 4222 can accurately release the picked-up corner protector cardboard 30 into the transition groove 42231, optionally, the picking mechanism 4222 includes a lifting power component 42221 and a picking assembly 42222. The lifting power component 42221 is driven to connect with the picking assembly 42222, and is used to drive the picking assembly 42222 to move up and down in a third direction. Thus, when the picking assembly 42222 picks up the corner protector cardboard 30, the lifting power component 42221 drives the picking assembly 42222 to move downwards a certain distance, allowing the corner protector cardboard 30 picked up by the picking assembly 42222 to be accurately inserted into the transition groove 42231 from the feed slot. Then, the picking assembly 42222 completely releases the corner protector cardboard 30. The lifting power component 42221 may include, but is not limited to, using a cylinder, hydraulic cylinder, or electric push rod to achieve the lifting drive. The material handling component 42222 includes, but is not limited to, using cylinder grippers, vacuum suction cups 42222a, etc. to pick up and release materials.

[0096] Typically, the corner protector cardboard 30 is elongated. To facilitate more convenient and stable pickup of the corner protector cardboard 30, the picking assembly 42222 optionally includes multiple vacuum suction cups 42222a spaced apart along a second direction. This second direction can be aligned with the length direction of the corner protector cardboard 30. Thus, by adsorbing the corner protector cardboard 30 with multiple vacuum suction cups 42222a, multiple adsorption points can be formed along the length of the corner protector cardboard 30, preventing bending due to its excessive length and ensuring that the corner protector cardboard 30 can be smoothly transferred into the transition groove 42231 in a flattened state. The number of vacuum suction cups 42222a can be set according to the actual length of the corner protector cardboard 30 and is not specifically limited here.

[0097] To improve material handling efficiency, the frame 421 may optionally include two sets of material handling modules 422 spaced apart along a third direction. Each material handling module 422 can move up and down relative to the frame 421 along the third direction. In this way, the two sets of material handling modules 422 can respectively pick up materials within different height ranges, thereby improving material handling efficiency. Furthermore, the fact that each set of material handling modules 422 can move up and down relative to the frame 421 greatly increases the material handling range along the third direction.

[0098] In this embodiment, the storage and conveying module 411 of the storage device 41 and the picking module 422 of the picking device 42 can be configured one-to-one. The storage and conveying module 411 is used to store the corner protector cardboard 30. When picking is required, the storage and conveying module 411 is used to convey the corner protector cardboard 30 along the first direction toward the side closer to the picking module 422. The picking mechanism 4222 of the picking module 422 moves along the first direction toward the side closer to the storage and conveying module 411 under the drive of the translation drive module. The picking mechanism 4222 picks up the outermost corner protector cardboard 30 on the storage and conveying module 411, and then releases it into the transition groove 42231 of the receiving member 4223, and conveys it toward the downstream feeding device 1 through the transition groove 42231. The specific structure of the feeding device 42 is as described in the above embodiments. Since this paper machine 4 adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0099] Optionally, the storage device 41 further includes a support frame 412, and the storage and conveying module 411 includes a conveying mechanism 4111 disposed on the support frame 412, and a storage bin 4112 drivenly connected to the conveying mechanism 4111. The storage bin 4112 is used to store corner protector cardboard 30. Multiple corner protector cardboard 30 can be stacked in the storage bin 4112 along the first direction. The storage bin 4112 is provided with a discharge port 41121 on the side facing the material picking device 42. The conveying mechanism 4111 is used to drive the storage bin 4112 to reciprocate along the first direction.

[0100] In this embodiment, the support frame 412 is used to support the storage and conveying module 411. When multiple storage and conveying modules 411 are provided, they can be installed on the same support frame 412. The storage and conveying module 411 includes a conveying mechanism 4111 and a storage bin 4112. The conveying mechanism 4111 is used to drive the storage bin 4112 to reciprocate along a first direction, so that the storage bin 4112 can move closer to or further away from the picking module 422. Multiple corner protector cardboard sheets 30 can be stacked in the storage bin 4112 along the first direction, with the paper surface of each corner protector cardboard sheet 30 in an upright state. When material needs to be retrieved, the conveying mechanism 4111 drives the storage bin 4112 to move along the first direction to the side of the support frame 412 near the material retrieval module 422. The material retrieval mechanism 4222 of the material retrieval module 422 moves along the first direction to the outlet 41121 of the storage bin 4112 to pick up the corner protector cardboard 30 from the outlet 41121. When the corner protector cardboard 30 in the storage bin 4112 is used up, the conveying mechanism 4111 can drive the storage bin 4112 to move along the first direction to the side of the support frame 412 away from the material retrieval module 422, so that material replenishment can be performed on the other side of the support frame 412.

[0101] Optionally, the conveying mechanism 4111 includes a cylinder and a ball screw guide rail. The storage bin 4112 is slidably mounted on the support frame 412 along the first direction via the ball screw guide rail. The cylinder is driven by the storage bin 4112 to drive the storage bin 4112 to reciprocate along the ball screw guide rail. Of course, the conveying mechanism 4111 can also use a belt pulley conveyor, a motor and gear rack mechanism, or other methods to realize the movement of the storage bin 4112 along the first direction.

[0102] It is understandable that multiple corner protector cardboard pieces 30 are stacked in the storage bin 4112. Since two adjacent corner protector cardboard pieces 30 are stuck together, when the material picking module 422 picks up the outermost corner protector cardboard piece 30, it may bring out the corner protector cardboard piece 30 behind it.

[0103] In order to separate two adjacent corner protector cardboard pieces 30, the storage and conveying module 411 may optionally include a material distribution component 4113. The material distribution component 4113 is provided corresponding to the storage bin 4112. The material distribution component 4113 is used to separate the outermost corner protector cardboard piece 30 from the corner protector cardboard piece 30 behind it when the picking device 42 picks up the outermost corner protector cardboard piece 30.

[0104] For example, the material distribution assembly 4113 may include a flexible material distribution component (e.g., a brush) to limit the rear corner protector 30, preventing it from being pulled out when the picking module 422 picks up the outermost corner protector 30. Alternatively, the material distribution assembly 4113 may include a movable baffle. During picking, the baffle is inserted between the outermost corner protector 30 and its adjacent rear corner protector 30 to provide rigid limiting. After picking, the baffle moves to a clearance position to allow the rear corner protector 30 to be easily removed. Of course, other forms of material distribution assemblies 4113 can also be used for material distribution.

[0105] Optionally, the material distribution assembly 4113 includes a first material distribution brush 41131, which is located at the lower edge of the discharge port 41121 and is used to abut against the lower edge of the corner protector cardboard 30 near the discharge port 41121; and / or, the material distribution assembly 4113 includes a second material distribution brush 41132, which is located above the storage bin 4112 and is used to abut against the top of the multiple corner protector cardboard 30s in the storage bin 4112.

[0106] For example, the material separating component 4113 may include a first separating brush 41131 disposed at the lower edge of the discharge port 41121. The first separating brush 41131 abuts against the lower edge of the corner protector cardboard 30 near the discharge port 41121. Because the first separating brush 41131 has a certain degree of flexibility, only a slight force is required from the material handling module 422 to allow the outermost corner protector cardboard 30 to pass over the first separating brush 41131 and be removed. At the same time, the resetting of the separating brush will continue to limit the rear corner protector cardboard 30, preventing the rear corner protector cardboard 30 from being carried out as well. Furthermore, because the first separating brush 41131 is relatively soft, it can avoid scratching the corner protector cardboard 30 while separating the materials, ensuring that the corner protector cardboard 30 can be removed intact.

[0107] Optionally, multiple first separating brushes 41131 can be spaced apart along the second direction (i.e., the length direction of the corner protector cardboard 30). Thus, by having multiple first separating brushes 41131 act on multiple portions along the length of the corner protector cardboard 30, a better limiting effect can be achieved, ensuring effective separation of the outermost corner protector cardboard 30 from the corner protector cardboard 30 behind it. Alternatively, a single first separating brush 41131 can be provided extending along the second direction from one end of the corner protector cardboard 30 to the other.

[0108] For example, the material distribution component 4113 may include a second material distribution brush 41132 disposed above the storage bin 4112. The second material distribution brush 41132 abuts against the top of multiple corner protector cardboard pieces 30 inside the storage bin 4112. The second material distribution brush 41132 can generate a certain resistance to the top of the corner protector cardboard pieces 30. And because the second material distribution brush 41132 has a certain degree of flexibility, only a slight force is required from the material handling module 422 to allow the outermost corner protector cardboard piece 30 to pass over the second material distribution brush 41132 and be taken out. At the same time, the resetting of the material distribution brush will continue to limit the corner protector cardboard pieces 30 on the rear side, preventing the rear corner protector cardboard pieces 30 from being taken out as well. Furthermore, because the second material distribution brush 41132 is relatively soft, it can avoid scratching the corner protector cardboard pieces 30 while distributing the material, ensuring that the corner protector cardboard pieces 30 can be taken out intact.

[0109] Optionally, the second separating brush 41132 is an elongated strip extending along the first direction, so that the second separating brush 41132 can completely cover the multiple corner protector cardboard sheets 30 in the storage bin 4112, and the bristles of the second separating brush 41132 can extend between any two adjacent corner protector cardboard sheets 30. Optionally, multiple second separating brushes 41132 are provided, and the multiple second separating brushes 41132 are spaced apart along the second direction (that is, the length direction of the corner protector cardboard sheets 30). In this way, by having multiple second separating brushes 41132 act on multiple parts of the corner protector cardboard sheets 30 along the length direction, a better limiting effect can be achieved, thereby ensuring that the outermost corner protector cardboard sheet 30 is effectively separated from the corner protector cardboard sheet 30 behind it.

[0110] Optionally, the material distribution component 4113 includes a first material distribution brush 41131 and a second material distribution brush 41132. The first material distribution brush 41131 is located at the lower edge of the discharge port 41121, and the second material distribution brush 41132 is located above the storage bin 4112. The first material distribution brush 41131 is used to abut against the lower edge of the corner protector cardboard 30 near the discharge port 41121, and the second material distribution brush 41132 is used to abut against the top of the multiple corner protector cardboard pieces 30 inside the storage bin 4112. In this way, through the cooperation of the first material distribution brush 41131 and the second material distribution brush 41132, a more reliable flexible limiting effect can be achieved on the corner protector cardboard 30, resulting in a better material distribution effect.

[0111] Optionally, the storage device 41 includes two sets of storage and conveying modules 411, each set including an upper storage and conveying module 411a and a lower storage and conveying module 411b spaced apart in the vertical direction; the picking device 42 includes two sets of picking modules 422, each set including an upper picking module 422a and a lower picking module 422b spaced apart in the vertical direction; the upper picking module 422a is correspondingly arranged to the upper storage and conveying module 411a and is used to pick up the corner protector cardboard 30 conveyed by the upper storage and conveying module 411a; the lower picking module 422b is correspondingly arranged to the lower storage and conveying module 411b and is used to pick up the corner protector cardboard 30 conveyed by the lower storage and conveying module 411b.

[0112] Optionally, the upper material picking module 422a cooperates with the upper material storage and conveying module 411a to pick up the upper corner protector cardboard 30, and the lower material picking module 422b cooperates with the lower material storage and conveying module 411b to pick up the lower corner protector cardboard 30. The upper and lower material picking modules 422 can work simultaneously, which can effectively improve the material picking efficiency.

[0113] In one embodiment, the feeding device 5 includes a feeding flipping mechanism 51 and a second receiving groove 52. The feeding flipping mechanism 51 is located on one side of the coating device 3 along the second direction, and the second receiving groove 52 is located on the side of the feeding flipping mechanism 51 away from the coating device 3. The feeding flipping mechanism 51 is used to pick up the finished product after coating and flip it at a preset angle before sending it to the second receiving groove 52. The second receiving groove 52 is used to drive the finished product after coating to be output along the second direction.

[0114] In this embodiment, the second direction intersects with the first direction. The unloading device 5 is used to receive the finished product that has been wrapped, adjust its posture, and remove it from the production line. The unloading and flipping mechanism 51 is installed on one side of the wrapping device 3 along the second direction, with its inlet end aligned with the finished product outlet of the wrapping device 3 to ensure smooth handover of the finished product. It is used to receive the finished product that has completed all packaging processes and is sent out by the wrapping device 3. Subsequently, the finished product is driven to rotate around the axis by a preset angle, which aims to change the finished product from an upright or specific posture during packaging to a flat or other stable posture suitable for subsequent handling, stacking, or warehousing. After the flipping is completed, the flipping mechanism transfers the finished product to the second receiving trough 52 connected to it. The second receiving trough 52 is equipped with a conveyor belt 12 or a powered roller assembly extending along the second direction to receive the finished product sent out from the unloading and flipping mechanism 51 and output it to a designated downstream area.

[0115] In one embodiment, the unloading device 5 further includes a second lifting device 53, which is located below the unloading and tilting mechanism 51. The second lifting device 53 has a third lifting component 531 for supporting the finished product after wrapping. The unloading and tilting mechanism 51 has a clearance space for the third lifting component 531 to pass through, and the third lifting component 531 is movably positioned within the clearance space. In its initial state, the third lifting component 531 is housed below the clearance space, with its top surface lower than the bearing surface of the unloading and tilting mechanism 51. When a lifting action is required, the third lifting component 531 can move upward through the clearance space until it lifts the product 20 located thereon to a predetermined height. This predetermined height can be set according to the requirements of the next process. After completing the top operation, the third lifting component 531 immediately descends, carrying the product 20 or returning empty to its initial position, and the device removes the product 20.

[0116] In one embodiment, the packaging line 100 further includes a labeling mechanism 6, which is located on the side of the unloading and flipping mechanism 51 away from the loading device 1. The third lifting component 531 can pass through the clearance space to push the finished product with film coating to a preset position. The labeling mechanism 6 is used to label the finished product at the preset position. The labeling mechanism 6 is installed on the side of the unloading and flipping mechanism 51 away from the loading start end of the production line. After the finished product output from the film coating device 3 is adjusted in posture by the unloading and flipping mechanism 51, it is transferred to the preset labeling station. The product 20 in the labeling station is positioned by the second lifting device 53, and the third lifting component 531 lifts the finished product as a whole to a preset height, which is the preset labeling position. After the product 20 is labeled, the third lifting component 531 descends, and the product 20 re-abuts against the roller assembly below it and is transferred to the subsequent station.

[0117] In one embodiment, the packaging production line 100 further includes a finished product conveyor line 7, which is located at the end of the unloading device 5 away from the wrapping device. The finished product conveyor line 7 is used to receive the finished products output from the unloading device 5 and transfer them to the finished product area. The input end of the finished product conveyor line 7 is connected to the output end of the second receiving trough 52 to receive the finished products that have completed the packaging process, which are sequentially sent out from the unloading device 5. The finished product conveyor line 7 can be a belt conveyor, roller conveyor, or chain plate conveyor, etc. The conveying plane of the finished product conveyor line 7 is kept horizontal or designed with a certain inclination angle according to process requirements; so as to receive the finished products from the unloading device 5 and transfer the finished products to the designated finished product area along a preset path at a constant or adjustable speed, thus completing a complete logistics closed loop of orderly transferring the packaged finished products from the production line to the finished product area.

[0118] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A packaging production line, characterized in that, include: A feeding device is used to transport products to be wrapped. A conveying device, located at the output end of the feeding device, is used to receive the products sent out by the feeding device and transport them. A wrapping device, located at the output end of the conveying device, has a wrapping station. The wrapping device receives products from the conveying device and moves them to the wrapping station. It then wraps the products at the wrapping station and sends them out. A paper sheeter, located on one side of the wrapping device, conveys corner protector paper to the wrapping station while the wrapping device is wrapping the products. A feeding device, located on one side of the wrapping device, receives the wrapped products and sends them out. The paper sheeter includes a storage device, comprising at least one storage and conveying module for storing corner protector paper and conveying it along a first direction. A material-picking device is disposed on one side of the storage device along a first direction. The material-picking device includes at least one set of material-picking modules. Each material-picking module includes a material-picking mechanism and a receiving component. The receiving component has a transition groove for accommodating corner protector paper. The material-picking mechanism is used to sequentially pick up the corner protector paper from the storage device and transfer it to the transition groove. A conveying device is disposed on one side of the material-picking device along a second direction. The conveying device includes at least one set of conveying modules. The conveying modules are used to pick up the corner protector paper from the transition groove along the second direction and convey one end of the corner protector paper to the angle between the end of the roll product and the stretch film. During the film-winding process, the film-winding machine winds the corner protector paper around the axial corners of both ends of the roll product. The first direction intersects with the second direction.

2. The packaging production line as described in claim 1, characterized in that, The conveying device includes a feeding and flipping mechanism and a conveying mechanism. The feeding and flipping mechanism is located at the output end of the feeding device, and the conveying mechanism is located between the feeding and flipping mechanism and the wrapping station. The feeding and flipping mechanism is used to receive the product sent out by the feeding device, flip it at a preset angle, and send it out to the conveying mechanism. The conveying mechanism is used to convey the product to the wrapping station.

3. The packaging production line as described in claim 2, characterized in that, The conveying mechanism includes a first conveying component and a weighing mechanism and a centering mechanism disposed on the first conveying component. The first conveying component is used to move the product from one end of the first conveying component near the feeding and turning mechanism to the other end. The weighing mechanism is located on the side of the first conveying component near the feeding and turning mechanism, and the centering mechanism is located on the side of the first conveying component near the wrapping station.

4. The packaging assembly line as described in claim 1, characterized in that, The feeding device includes a first receiving groove that can slide along a first direction, and a conveyor belt is provided in the first receiving groove. The conveyor belt is used to drive the product to move along a second direction. The conveying device is located at one end of the first receiving groove along the second direction. The feeding device has a receiving position for receiving the product and a feeding position for conveying the product to the conveying device in the first direction. The first direction intersects with the second direction.

5. The packaging assembly line as described in claim 1, characterized in that, The wrapping device includes: a machine base, with the wrapping station located on the machine base; a rotating base rotatably mounted on the wrapping station, the rotating base being capable of rotating about a pivot parallel to a third direction; a second conveying assembly mounted on the rotating base, the second conveying assembly being used to convey the product to be wrapped to the wrapping station; a first lifting device mounted on the rotating base, the first lifting device having a first lifting component for supporting the product to be wrapped, the second conveying assembly having a clearance space for the first lifting component to pass through, the first lifting component being vertically and vertically disposed in the clearance space; and a film feeding mechanism for transferring the stretch film to the outer periphery of the product at the wrapping station, and cooperating with the rotating base to form a packaging film layer on the outer periphery of the product.

6. The packaging assembly line as described in claim 1, characterized in that, The feeding device includes a feeding and flipping mechanism and a second receiving groove. The feeding and flipping mechanism is located on one side of the coating device along the second direction, and the second receiving groove is located on the side of the feeding and flipping mechanism away from the coating device. The feeding and flipping mechanism is used to pick up the finished product after coating and flip it at a preset angle before sending it to the second receiving groove. The second receiving groove is used to drive the finished product after coating to be output along the second direction.

7. The packaging assembly line as described in claim 6, characterized in that, The feeding device further includes a second lifting device, which is located below the feeding and turning mechanism. The second lifting device has a third lifting component for supporting the finished product after film coating. The feeding and turning mechanism has a clearance space for the third lifting component to pass through, and the third lifting component is movably and height-adjustable in the clearance space.

8. The packaging assembly line as described in claim 7, characterized in that, The packaging production line also includes a labeling mechanism, which is located on the side of the unloading and turning mechanism away from the feeding device. The third lifting component can pass through the clearance space to push the finished product with film coating to a preset position. The labeling mechanism is used to label the finished product in the preset position.

9. The packaging production line according to any one of claims 1 to 8, characterized in that, The packaging production line also includes a finished product conveyor line, which is located at the end of the feeding device away from the wrapping device. The finished product conveyor line is used to receive the finished products output by the feeding device and transfer them to the finished product area.

Images