Leather shell edge covering device and edge covering machine

Abstract

The utility model discloses a leather shell hemming device and a hemming machine, the leather shell hemming device comprises a material moving mechanism and a hemming mechanism, the material moving mechanism comprises a suction cup, a suction cup cross beam and a suction cup lifting mechanism, the suction cup is assembled on the suction cup cross beam through the lifting mechanism, and the suction cup cross beam can move a paperboard to be hemmed to a hemming station. In the edge covering station, the suction cup lifting mechanism drives the suction cup and the paperboard to be subjected to edge covering adsorbed by the suction cup to move downwards, so that the surface paper exceeding the edge of the paperboard abuts against the edge covering plate, is folded upwards by the edge covering plate in the downward moving process and then is attached to the edge of the paperboard along with horizontal movement of the edge covering plate. According to the edge covering mechanism, the suction cup is used for conveying the paperboard to be subjected to edge covering to the edge covering mechanism, and the relative movement between the surface paper and the edge covering plate on one side in the descending process of the suction cup is fully utilized, so that the surface paper is folded upwards in the descending process. According to the utility model, the positioning accuracy of the paperboard is ensured through the accurate transfer of the sucking disc, the up-and-down movement requirement of the edge covering plate is reduced in the edge covering process, and the reliability of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of cardboard processing and forming technology, specifically to a cardboard edge-wrapping device and edge-wrapping machine. Background Technology

[0002] Edge binding is a surface decoration process used for high-end packaging boxes, cardboard boxes, and book covers. The binding consists of cardboard and face paper. During processing, the cardboard is first glued onto the face paper after it has been coated with adhesive. Then, the face paper extending beyond the edge of the cardboard is folded and wrapped around it, thus achieving edge binding. The core principle is to neatly wrap the edges of the decorative material around the edges of the cardboard and securely adhere it to the cardboard through adhesives and fixing methods.

[0003] Edge sealing typically involves longitudinal edge sealing on the left and right sides of the cardboard and transverse edge sealing on the front and back sides. Some products also require additional corner trimming. Patent CN101780734A discloses a transverse edge sealing mechanism for a fully automatic edge sealing machine. This mechanism uses a conveyor belt to transfer the cardboard to be edge sealed into the transverse edge sealing unit. Then, through the up-and-down movement of the edge sealing plates on both sides and their forward and backward movement in the edge sealing direction, combined with the positioning beam, the face paper is folded and compacted, ultimately achieving edge sealing.

[0004] In the aforementioned prior art, belt conveyors typically suffer from conveyor belt misalignment. Therefore, using a conveyor belt to transport cardboard to the edge-sealing device may cause the cardboard to shift position during transport. This misalignment not only affects the positioning accuracy of the cardboard but may also lead to unevenness or instability when the cardboard enters the edge-sealing device, thereby affecting the edge-sealing quality and efficiency.

[0005] Furthermore, the edge-sealing plate needs to perform movements in both vertical and horizontal directions, and in conjunction with the positioning beam, it can fold and compact the face paper, resulting in a complex structural design. In addition, the multiple consecutive movements of the edge-sealing plate require precise timing and position control; each movement must be executed at the correct time and position to achieve accurate edge sealing. Otherwise, uncoordinated movements, such as one movement completing prematurely or delayed, may affect the quality and effect of the cardboard edge sealing, or even cause the mechanism to jam or be damaged. Therefore, the high precision required for the control of the edge-sealing plate in the above-mentioned device undoubtedly increases the overall design and manufacturing difficulty and cost. Multiple consecutive movements also may lead to a higher probability of failure during operation, which undoubtedly reduces the reliability of the equipment. Summary of the Invention

[0006] This utility model proposes a cardboard edge-wrapping device and edge-wrapping machine, which aims to solve the problems of inaccurate cardboard positioning caused by conveyor belt deviation and complex control of multiple actions of the edge-wrapping board in the prior art, thereby improving edge-wrapping efficiency and quality.

[0007] To achieve the above-mentioned objectives, the technical solution of this utility model is as follows:

[0008] On one hand, this utility model proposes a casing edge-wrapping device, which includes a material transfer mechanism and an edge-wrapping mechanism set at the edge-wrapping station. The edge-wrapping mechanism includes an edge-wrapping plate that can move horizontally back and forth in the edge-wrapping direction. The material transfer mechanism includes a suction cup and a suction cup beam. The suction cup is mounted on the suction cup beam through a suction cup lifting mechanism. The suction cup beam can drive the suction cup and the cardboard to be wrapped to move to the edge-wrapping station. When the cardboard to be wrapped is located at the edge-wrapping station, the suction cup lifting mechanism can drive the suction cup and the cardboard to be wrapped to move downward, so that the face paper exceeding the edge of the cardboard to be wrapped acts on the edge-wrapping plate and is folded upward by the edge-wrapping plate during the downward movement. The face paper that is folded upward is driven by the edge-wrapping plate to move horizontally in the edge-wrapping direction and adhere to the cardboard.

[0009] Preferably, the edge-binding device further includes a support plate located inside the edge-binding plate; when the suction cup lifting mechanism moves the cardboard to be edge-binded down to be in contact with the support plate, the upward-folded face paper is moved horizontally in the edge-binding direction by the edge-binding plate and adheres to the cardboard.

[0010] Preferably, the edge-binding device further includes a support plate, which is located inside the edge-binding plate and can move up and down reciprocally. When the suction cup lifting mechanism moves the cardboard to be edged down to be in contact with the support plate, the support plate moves down synchronously with the cardboard to be edged. The paper extending beyond the edge of the cardboard to be edged abuts against the edge-binding plate and is folded up by the edge-binding plate during the downward movement. The folded paper is then moved horizontally towards the edge-binding direction by the edge-binding plate and adheres to the cardboard.

[0011] Preferably, the edge banding plate is fixed to the frame by an edge banding plate mounting seat, and the edge banding plate mounting seat is provided with an edge banding plate driving unit for driving the edge banding plate to reciprocate in the edge banding direction.

[0012] Preferably, the edge-binding device further includes a paper feeding conveyor belt located inside the edge-binding plate.

[0013] Preferably, the edge-binding device further includes a paper feeding support mechanism, the support surface of which is flush with the conveying plane of the paper feeding conveyor belt.

[0014] Preferably, the paper feeding support mechanism is a roller support mechanism, which consists of a roller support frame and a plurality of support rollers arranged on the roller support frame, and the roller support frame is connected to the machine frame.

[0015] Based on the same inventive concept, this utility model also proposes an edge-binding machine, which includes the leather edge-binding device described above.

[0016] The beneficial effects of this utility model are:

[0017] 1. This utility model uses suction cups to transfer the longitudinally edged cardboard from the material transfer station to the edge-wrapping station. The movement of the suction cups between the material transfer station and the edge-wrapping station is a point-to-point linear motion. During the material transfer process, the suction cups transport the cardboard to be edged with low interference and good stability, and avoid the problem of conveyor belt deviation, ensuring that the cardboard maintains a precise position and posture during the transfer. Therefore, this utility model can accurately deliver the positioned cardboard to the edge-wrapping mechanism for direct edge-wrapping operation. Since the suction cups do not damage the initial positioning of the cardboard during the transfer process, there is no need to set up an additional positioning mechanism for secondary positioning of the cardboard, thereby improving production efficiency, simplifying the process flow, and improving the quality of the edge wrapping.

[0018] 2. This invention achieves upward folding by utilizing the relative movement and interaction force between the face paper and the edge-sealing plate during the suction cup's descent. As the suction cup lowers the cardboard, the face paper rests against the edge-sealing plate. Guided by the edge-sealing plate, the face paper is folded upwards during the descent. Subsequently, the edge-sealing plate only needs to move horizontally to ensure the folded face paper is tightly adhered to the cardboard, ultimately achieving a precise edge-sealing effect. This method effectively reduces the vertical movement requirements of the edge-sealing plate, lowers the overall control complexity of the equipment, and reduces the precision requirements for the edge-sealing plate's movements. Furthermore, it avoids uncoordinated movements that could affect the edge-sealing quality and effect, and reduces the probability of failure, thereby improving equipment reliability.

[0019] 3. This utility model can achieve dynamic upward bending of the face paper during the descent process by using the relative movement and interaction force between the face paper and the edge-sealing plate on one side. Compared with waiting for the cardboard to descend to the bottom before folding it upward, the edge-sealing efficiency of the device is improved.

[0020] 4. The material transfer mechanism of this utility model not only has the function of transferring the cardboard shell, but also plays a role in adsorbing and stabilizing the cardboard shell when the face paper moves horizontally with the edge-sealing board for edge sealing. This effectively prevents the cardboard shell from shifting during the edge sealing process and destroying its initial positioning. Therefore, this utility model eliminates the need for additional positioning beams or pressure strips to fix the cardboard shell, simplifying the equipment structure and reducing production costs.

[0021] 5. This utility model features a support plate on the inner side of the edge-sealing plate, which supports and holds the cardboard. At the edge-sealing station, the support plate works with a suction cup to clamp the cardboard. When the cardboard is folded upwards and moves horizontally towards the edge-sealing direction along with the edge-sealing plate, it ensures that the cardboard as a whole will not shift. Therefore, it significantly improves the stability and precision of the edge-sealing process, ensures the reliability of the edge-sealing quality, and avoids uneven or failed edge-sealing caused by cardboard displacement.

[0022] 6. The pallet of this invention can descend synchronously with the cardboard. Therefore, thanks to this design, the upward folding of the face paper can be carried out under stable conditions during the descent of the cardboard. The cardboard maintains good stability throughout the process, and its initial positioning is not disrupted, significantly improving the stability and accuracy of the edge-wrapping process, ensuring the reliability of the edge-wrapping quality, and avoiding problems such as uneven edge-wrapping or failure caused by cardboard displacement.

[0023] 7. The frame of this utility model is equipped with a paper feeding conveyor belt. The finished edge-wrapped cardboard is transferred to the next process via this conveyor belt. At the same time, the material transfer mechanism automatically resets, ready for the next operation. Therefore, the coordinated work of the paper feeding conveyor belt and the material transfer mechanism not only achieves efficient connection between processes, but also ensures the continuity of equipment operation, significantly improves overall production efficiency, reduces time loss caused by equipment reset delays, and further optimizes the production process.

[0024] 8. The frame of this utility model is equipped with a roller support mechanism, the support surface of which is flush with the conveying plane of the paper feeding conveyor belt. During the conveying process of the paper feeding conveyor belt, the roller support mechanism supports the bottom surface of the paperboard, holding it up and preventing deformation or displacement of the paperboard due to excessive length. Furthermore, during the conveying process, the rolling characteristics of the rollers reduce friction between the face paper and the support surface, ensuring smooth and stable movement of the paperboard, further improving the stability and reliability of the conveying process. It also reduces wear on the face paper, which is particularly important for protecting the surface quality of the paperboard, especially when handling high-grade packaging materials. Attached Figure Description

[0025] The foregoing and hereinafter detailed description of this utility model becomes clearer when read in conjunction with the following drawings, in which:

[0026] Figure 1 This is a schematic diagram of the edge-binding device of this utility model;

[0027] Figure 2 This is a schematic diagram of the assembly of the edge-binding mechanism of this utility model;

[0028] Figure 3 This is a schematic diagram of the material transfer mechanism of this utility model;

[0029] Figure 4 This is a schematic diagram of the assembly of the edge-wrapping component of this utility model;

[0030] Figure 5 This is a schematic diagram of the edge-binding machine of this utility model.

[0031] In the picture:

[0032] 1. Material transfer mechanism; 2. Edge binding mechanism; 3. Paper feeding conveyor belt; 4. Paper feeding support mechanism; 5. Pallet lifting mechanism; 6. Edge binding plate mounting base; 7. Paper transfer conveyor belt; 11. Suction cup; 12. Suction cup frame; 13. Suction cup crossbeam; 14. Suction cup lifting mechanism; 21. Edge binding plate; 22. Pallet; 23. Edge binding plate drive unit; 100. Material transfer station; 200. Edge binding station. Detailed Implementation

[0033] To enable those skilled in the art to better understand the technical solutions of this utility model, the following will further illustrate the technical solutions for achieving the purpose of this utility model through several specific embodiments. It should be noted that the technical solutions claimed by this utility model include, but are not limited to, the following embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this utility model.

[0034] Example 1

[0035] This utility model provides an embodiment of a leather casing edge-wrapping device. The structure of the edge-wrapping device is described in the attached specification. Figures 1-3 As shown, the system includes a frame with a material transfer station 100 and an edge-wrapping station 200. A paper transfer conveyor belt 7 for conveying the cardboard to be edge-wrapped is connected to the material transfer station 100. The edge-wrapping station 200 is equipped with an edge-wrapping mechanism 2. A material transfer mechanism 1 is located between the material transfer station 100 and the edge-wrapping station 200. The cardboard to be edge-wrapped consists of cardboard and a face paper pasted onto the surface of the cardboard. The face paper is slightly larger than the cardboard. After the face paper is pasted onto the cardboard, a portion of the face paper extends beyond the side edge of the cardboard; this portion is the part to be folded and edge-wrapped. When the paper transfer conveyor belt 7 conveys the cardboard to be edge-wrapped to the material transfer station 100, the material transfer mechanism 1 grabs the cardboard from the paper transfer conveyor belt 7 at the material transfer station 100 and then transfers the cardboard to the edge-wrapping station 200. At the edge-wrapping station 200, the edge-wrapping mechanism 2 on the frame folds the face paper that extends beyond the edge of the cardboard along the edge of the cardboard and pastes it onto the cardboard to achieve edge wrapping of the cardboard shell. The face paper that extends beyond the edge of the cardboard is folded 180 degrees.

[0036] The material transfer mechanism 1 includes a suction cup 11 and a suction cup beam 13. The suction cup 11 is fixed on the suction cup beam 13, and the suction cup beam 13 is slidably connected to the left and right sides of the frame. The suction cup beam 13 can be driven to reciprocate between the material transfer station 100 and the edge-sealing station 200. A suction cup lifting mechanism 14 is provided between the suction cup 11 and the suction cup beam 13. The suction cup lifting mechanism 14 drives the suction cup 11 to rise or fall on the suction cup beam 13.

[0037] The suction cup 11 typically consists of a suction cup frame 12 and a suction nozzle connected to the suction cup frame 12. The suction cup frame 12 is connected to the suction cup beam 13 via a suction cup lifting mechanism 14, and multiple sets of suction nozzles are arranged on the suction cup frame 12.

[0038] Understandably, the frame is typically equipped with a horizontal drive mechanism for the suction cup beam 13, which drives it to reciprocate horizontally between the material transfer station 100 and the edge-sealing station 200. This horizontal drive mechanism usually consists of two sets of pulley assemblies symmetrically arranged on both sides of the frame. Both ends of the suction cup beam 13 are connected to the pulley assemblies on both sides of the frame. The two pulley assemblies are generally connected to the suction cup beam power source via a synchronous transmission shaft to ensure synchronized movement between them. The suction cup beam power source drives the pulley assemblies on both sides, and under the drive of the synchronously moving pulley assemblies on both sides, the suction cup beam 13 reciprocates horizontally between the material transfer station 100 and the edge-sealing station 200.

[0039] The power source for the suction cup beam is typically a servo motor, hydraulic motor, or other components. This invention does not limit the specific structural form of the power source, as long as it can drive the horizontal drive mechanism of the suction cup beam.

[0040] In some embodiments, the suction cup beam horizontal drive mechanism may employ either a pulley assembly or a sprocket and chain assembly. Both pulley assemblies and sprocket and chain assemblies are common transmission components in the art and are well-known technologies, and will not be described in detail here.

[0041] Furthermore, linear guide rails are typically installed on the left and right sides of the frame, and the two ends of the suction cup beam 13 are slidably connected to the corresponding linear guide rails via sliders to ensure the stability of the reciprocating motion of the suction cup 11 between the material transfer station 100 and the edge-wrapping station 200. The suction cup beam 13 can move in a straight line, thereby ensuring that the cardboard to be edge-wrapped by the suction cup 11 maintains a precise position and posture during the transfer process and does not shift.

[0042] Furthermore, the suction cup lifting mechanism 14 can be a cylinder or a lead screw module driven by a motor (a lead screw module is used in the figure). Both cylinders and lead screw modules are mature existing technologies and will not be described in detail.

[0043] The edge-binding mechanism 2 includes an edge-binding plate 21 installed on the side of the frame. The edge-binding plate 21 can move horizontally back and forth on the frame in the edge-binding direction. When the suction cup beam 13 drives the suction cup 11 and the cardboard to be edge-binded to the edge-binding station 200, at the edge-binding station 200, the suction cup lifting mechanism 14 drives the suction cup 11 to move downward, thereby driving the cardboard to be edge-binded attached to the suction cup 11 to move downward together. During the downward movement, the paper extending beyond the edge of the cardboard gradually approaches and abuts against the edge-sealing plate 21 on the corresponding side. As the suction cup lifting mechanism 14 continues to drive the suction cup 11 and the cardboard to be sealed to continue moving downward, due to the relative movement between the paper and the edge-sealing plate 21, the paper against the edge-sealing plate 21 is folded upward by the edge-sealing plate 21 during the downward movement (the paper is folded upward and stood up). Then, the upward-folded paper moves horizontally with the edge-sealing plate 21 in the sealing direction. The paper is finally bent 180 degrees and then adhered to the cardboard to achieve sealing.

[0044] In the embodiment described in this utility model, the cardboard to be edged, formed by bonding the face paper and the cardboard together, is first conveyed to the transfer station 100 by the paper transfer conveyor belt 7. Then, the suction cup beam 13 drives the suction cup 11 to move to the transfer station 100, and the suction cup lifting mechanism 14 drives the suction cup 11 to move downward, whereby the suction cup 11 adsorbs the cardboard to be edged on the conveyor belt. Next, the suction cup beam 13 drives the suction cup 11 and the cardboard to be edged held thereto to move from the transfer station 100 to the edge-binding station 200. When the cardboard to be edged reaches the edge-binding station 200, the suction cup lifting mechanism 14 drives the suction cup 11 and the cardboard to be edged thereto to move downward, so that the face paper on the cardboard to be edged that extends beyond the edge of the cardboard abuts against the stationary edge-binding plate 21 and is folded upward by the edge-binding plate 21 during the downward movement. After the face paper is folded upward, the suction cup 11 stops moving downward and continues to hold the cardboard to be edged. Next, the edge-sealing plate 21 moves horizontally in the edge-sealing direction, causing the upward-folded face paper to bend in the edge-sealing direction and finally stick and cover the cardboard, thus completing the side edge sealing of the cardboard.

[0045] Regarding the above edge-wrapping process, the entire edge-wrapping board 21 remains stationary during the downward movement of the cardboard to be wrapped. After the cardboard stops descending, the edge-wrapping board 21 moves again, causing the upward-folded face paper to bend again in the edge-wrapping direction and finally stick and cover the cardboard, thus completing the process.

[0046] It is understandable that the reciprocating movement of the edge-binding plate 21 towards the edge-binding direction can be a horizontal reciprocating movement or a diagonal downward reciprocating movement, with the overall movement trend towards the edge-binding direction. The purpose and effect of the edge-binding plate 21 moving towards the edge-binding direction is to continue bending the portion of the face paper that has already been folded upwards until it adheres to the cardboard, thus achieving edge binding.

[0047] Therefore, in this invention, the upward folding of the face paper is completed during the downward movement process, which is a dynamic upward bending and shaping process that can significantly improve the edge-binding efficiency.

[0048] It is worth mentioning that, in order to avoid the edge banding plate 21 scratching or damaging the face paper during the downward movement, and to prevent the cardboard from shifting due to jamming during the downward movement, the part of the edge banding plate 21 that contacts the face paper has an arc surface.

[0049] In the embodiments described in this utility model, in order to improve the edge-wrapping efficiency and the continuity of the edge-wrapping process, the edge-wrapping mechanism 2 is usually symmetrically arranged on the left and right sides of the frame, and the face paper at the opposite sides of the cardboard is folded and wrapped simultaneously at the edge-wrapping station 200. Therefore, to achieve complete edge wrapping of all four sides of rectangular or square cardboard, two sets of edge-wrapping devices are usually continuously arranged on the production line. One set of edge-wrapping devices is used to wrap the two longitudinal sides of the cardboard, and the other set is used to wrap the two transverse sides of the cardboard. The two sets of edge-wrapping devices are generally connected by a paper conveyor belt 7.

[0050] It should be noted that the terms "horizontal" and "vertical" are relative concepts, but generally, the horizontal direction is considered to be the direction of the shorter side, and the vertical direction is the direction of the longer side.

[0051] The edge-sealing device proposed in this utility model can be used for both transverse and longitudinal edge-sealing of cardboard, but it is generally used for transverse edge-sealing of the short side of the cardboard. For longitudinal edge-sealing of the long side of the cardboard, a longitudinal edge-sealing device with an edge-sealing belt is generally selected, and the edge-sealing belt on the longitudinal edge-sealing device is usually in a twisted state. The longitudinal edge-sealing belt completes the longitudinal edge-sealing of the cardboard shell, which is a mature existing technology and will not be described in detail.

[0052] After the cardboard edges are finished, it can be transferred and transported using a conveyor belt or a robotic arm. These conveyor structures are all mature technologies and will not be elaborated further.

[0053] Example 2

[0054] This embodiment discloses a casing edge-wrapping device, which is based on Embodiment 1 and refers to the appendix of the instruction manual. Figure 2 As shown, the edge-wrapping device also includes a support plate 22 fixedly mounted on the frame, located inside the edge-wrapping plate 21. The support plate 22 cooperates with the suction cup 11 to support and clamp the cardboard to be edge-wrapped, preventing the cardboard from shifting during the edge-wrapping process. The height of the support plate 22 is lower than the height of the edge-wrapping plate 21, and the height difference between the two is slightly greater than the thickness of the cardboard to be edge-wrapped. The height difference should not be too large, otherwise the face paper cannot be flatly adhered to the edge of the cardboard, which will reduce the edge-wrapping quality; however, it should not be too small, otherwise the edge-wrapping plate 21 will hit the cardboard when it operates, affecting the edge-wrapping or even damaging the cardboard to be edge-wrapped.

[0055] Specifically, when the suction cup 11 moves the cardboard to be edged to the edge-binding station 200, the suction cup lifting mechanism 14 drives the suction cup 11 to descend. The cardboard to be edged held by the suction cup 11 descends synchronously with the suction cup 11, so that the face paper exceeding the edge of the cardboard to be edged acts on the edge-binding plate 21 and is folded upward by the edge-binding plate 21 during the downward movement. When the suction cup 11 continues to move the cardboard down to be in contact with the support plate 22 below, the suction cup 11 stops descending and continues to hold the cardboard to be edged. Then, the edge-binding plate 21 on one side moves, causing the face paper that has been folded upward to move horizontally in the edge-binding direction. During this movement, the face paper that has been folded upward is further folded to 180 degrees under the drive of the edge-binding plate. Finally, the face paper is pasted onto the cardboard, achieving edge binding.

[0056] During the entire edge-wrapping process described above, the paper extending beyond the edge of the cardboard is folded 180 degrees and then glued to the cardboard. After edge-wrapping is completed, the cardboard can be transported to the next process using the suction cup 11 of the transfer mechanism 1, or it can be transported using a conveyor belt. If a conveyor belt is used, the conveying plane of the conveyor belt is flush with the supporting plane of the pallet 22.

[0057] Therefore, at the edge-wrapping station 200, after the cardboard descends to fit against the pallet 22, the pallet 22 and the suction cup 11 work together to firmly clamp the cardboard between them. When the upward-folded face paper moves horizontally in the edge-wrapping direction along with the edge-wrapping plate 21, the cardboard as a whole will not shift, which can significantly improve the stability and accuracy of the edge-wrapping process and ensure the reliability of the edge-wrapping quality. Furthermore, the outer edge of the pallet 22 cannot exceed the edge of the corresponding side of the cardboard, and at most it is flush with the edge of the corresponding side of the cardboard.

[0058] In the embodiments described in this utility model, in order to firmly clamp the cardboard, the suction cup frame 12 is provided with pressure strips or multiple pressure blocks arranged in groups. When the suction cup 11 moves above the tray 22, the pressing surface of the pressure strips or pressure blocks and the supporting plane of the tray are in the same vertical plane, and the two are aligned to clamp the cardboard.

[0059] Example 3

[0060] This embodiment discloses a skin-binding device. The difference between this embodiment and Embodiment 2 is that the pallet 2 can reciprocate up and down on the frame. The frame is equipped with a pallet lifting mechanism 5 that drives the pallet 22 to reciprocate up and down. Initially, the height of the pallet 22 is slightly higher than the side binding plate 21, and it can be lowered until the upper surface of the cardboard to be bound supported on it is slightly lower than the bottom surface of the binding plate. The pallet lifting mechanism 5 can be a cylinder or a screw module driven by a motor (a cylinder is used in the figure). Both cylinders and screw modules are mature existing technologies and will not be described in detail.

[0061] Based on the above design, when the suction cup 11 moves the cardboard to be edged to the edge-binding station 200, the suction cup lifting mechanism 14 drives the suction cup 11 to descend, and the cardboard to be edged held by the suction cup 11 moves down synchronously with the suction cup 11. During the downward movement, the cardboard to be edged first comes into contact with the lower support plate 22. When the cardboard to be edged descends with the suction cup 11 to come into contact with the support plate 22, the support plate lifting mechanism 5 drives the support plate 22 to move, and the support plate 22 descends synchronously with the cardboard to be edged. During the descent, the face paper is sandwiched between the support plate 22 and the suction cup 11, and the face paper that exceeds the edge of the cardboard to be edged gradually approaches the edge-binding plate 21 on the corresponding side and abuts against the edge-binding plate 21. As the cardboard to be edged continues to descend, the face paper abutting against the edge-binding plate 21 is folded upward by the edge-binding plate 21 during the descent. The folded face paper is then driven by the edge-binding plate (21) to move horizontally in the edge-binding direction and adhere to the cardboard. After the face paper is folded upwards, the suction cup 11 and the support plate 22 stop descending simultaneously. At this time, the face paper is still sandwiched between the suction cup 11 and the support plate 22. The upper surface of the edge-sealing cardboard is slightly lower than the bottom surface of the edge-sealing plate 21 on one side. Finally, the edge-sealing plate 21 moves to bend the folded face paper in the edge-sealing direction and finally stick it to the cardboard to complete the edge-sealing.

[0062] After the edge binding is completed, the cardboard is conveyed to the next process, the descending pallet 22 rises back to its original position, and the suction cup 11 also returns to the material transfer station 100.

[0063] Example 4

[0064] This embodiment discloses a leather edge-binding device. Based on any of the above embodiments, the edge-binding plate 21 is fixed on the frame by the edge-binding plate mounting base 6. The edge-binding plate mounting base 6 is provided with an edge-binding plate driving unit 23 for driving the edge-binding plate 21 to reciprocate in the edge-binding direction.

[0065] Similarly, the edge-binding plate driving unit 23 can be a cylinder or a motor-driven lead screw module. Both cylinders and lead screw modules are mature existing technologies and will not be described in detail. Furthermore, to ensure the stability of the edge-binding plate 21's movement, a sliding pair (such as a linear guide rail) for reciprocating motion can be provided on the edge-binding plate mounting base 6. The edge-binding plate driving unit 23 drives the edge-binding plate 21 to reciprocate in the edge-binding direction on the edge-binding plate mounting base 6.

[0066] Example 5

[0067] This embodiment discloses a casing edge-wrapping device. Based on any of the above embodiments, a paper feeding conveyor belt 3 can be set on the frame, located inside the edge-wrapping plate 21. After the cardboard is edge-wrapped, the suction cup 11 picks up the cardboard and moves it onto the paper feeding conveyor belt 3, which then transports the cardboard to the next process for processing or assembly. At this time, the suction cup 11 is reset and returned to the material transfer station 100 under the drive of the suction cup lifting mechanism 14 and the suction cup beam 13 to perform the next edge-wrapping operation.

[0068] Furthermore, to better transport the edged cardboard, the paper feeding conveyor belts 3 are usually symmetrically arranged on both sides of the frame, forming a double-belt conveyor mechanism. Moreover, to achieve synchronization of the movement of the two paper feeding conveyor belts 3, the pulleys of the two paper feeding conveyor belts 3 are generally connected to the power source of the paper feeding conveyor belts via a synchronous drive shaft.

[0069] The power source for the paper feeding conveyor belt is usually a servo motor, hydraulic motor, or other components. This utility model does not limit the specific structural form of the power source, as long as it can drive the conveyor belt to move.

[0070] like Figure 2 As shown, to improve the overall compactness of the device and the edge-wrapping efficiency, the paper feeding conveyor belt 3 is usually also set at the edge-wrapping station 200, and is located inside the edge-wrapping plate 21. The height of the paper feeding conveyor belt 3 is slightly lower than that of the edge-wrapping plate 21. In this way, after the edge-wrapping plate 21 bends the upward-folded face paper towards the edge-wrapping direction and pastes it onto the cardboard, the suction cup 11 does not need to move horizontally to place the cardboard on the conveyor belt for transportation. Instead, it can directly place the edge-wrapped cardboard on the paper feeding conveyor belt below, and the paper feeding conveyor belt 3 will continue to transport the cardboard. At this time, the suction cup 11 can immediately reset and perform the next operation.

[0071] Furthermore, if the edge-sealing station 200 is also equipped with a pallet 22, since the pallet 22 of this utility model is divided into two types: one that can move up and down and the other that cannot. Therefore, the height position between the pallet 22 and the paper feeding conveyor belt 3 is referenced to the fixed paper feeding conveyor belt 3. When the pallet 22 is fixed on the frame and cannot move up and down, the supporting plane of the pallet 22 is flush with the conveying plane of the paper feeding conveyor belt 3. If the pallet 22 can move up and down on the frame, then the pallet 22 can at least descend until its supporting plane is flush with the conveying plane of the paper feeding conveyor belt 3.

[0072] Furthermore, the paper feeding conveyor belt 3 and pallet 22 on the same side of the frame can be integrated and installed on the corresponding side of the edge-sealing plate mounting base 6, and together with the edge-sealing plate 21 on the edge-sealing plate mounting base 6, they can be combined to form an edge-sealing assembly, the assembly structure of which is as follows: Figure 4As shown, the edge-sealing assemblies on both sides of the frame are assembled onto the frame via mounting shafts, and the edge-sealing plate mounting seats 6 of the edge-sealing assemblies on both sides are slidably mounted on the mounting shafts. Therefore, the spacing between the edge-sealing assemblies on both sides of the frame can be adjusted according to the size of the cardboard to be edge-sealed.

[0073] The installation positions of the edge-sealing plate 21, the pallet 22, and the paper feeding conveyor belt 3 on the edge-sealing plate mounting base 6 are as follows: the edge-sealing plate 21 is located on the outside, the paper feeding conveyor belt 3 is located on the inside, the pallet 22 is set between the edge-sealing plate 21 and the paper feeding conveyor belt 3, and the pallet lifting mechanism 5 is fixed on the edge-sealing plate mounting base 6.

[0074] Furthermore, a paper feeding support mechanism 4 can be installed on the frame, and the paper feeding support mechanism 4 is fixed to the frame. During the process of the paper conveyor belt conveying the paperboard, the paper feeding support mechanism 4 is used to support and hold the paperboard, preventing excessively long paperboards from sinking due to their own weight during the conveying process, causing deformation or displacement. Therefore, the support surface of the paper feeding support mechanism 4 is flush with the conveying plane of the paper conveyor belt and is also located at the edge-sealing station 200. The paper feeding support mechanism is generally a roller support mechanism, which consists of a roller support frame and several support rollers set on the roller support frame. The roller support frame is connected to the frame.

[0075] If the paper feeding conveyor belt 3 is integrated and installed on the edge-binding plate mounting base 6, then the paper feeding support mechanism 4 is usually located between the two paper feeding conveyor belts 3 on the left and right sides. The number of paper feeding support mechanisms 4 is selected according to the size of the paperboard to be edge-bound.

[0076] Example 6

[0077] This embodiment discloses an edge-binding machine, which includes the leather edge-binding device described in any of the above embodiments, such as... Figure 5 As shown, a paper conveyor belt 7 is connected to the material transfer station 100 (i.e., the feeding end) of the casing edge-wrapping device. The paperboard to be edge-wrapped, composed of paperboard and face paper, is conveyed to the casing edge-wrapping device by the paper conveyor belt 7. The horizontal or vertical edge-wrapping of the paperboard is completed by the casing edge-wrapping device of this utility model. The edge-wrapped paperboard is then conveyed to the next process for processing and assembly.

[0078] It is understood that the edge-sealing device proposed in this utility model can generally be used for both transverse and longitudinal edge-sealing of cardboard, but it is usually used for transverse edge-sealing of the short side of the cardboard, where the edge-sealing effect is better. Therefore, the cardboard to be edge-sealed conveyed to the paper transfer conveyor belt 7 is usually cardboard that has already been longitudinally edge-sealed. For longitudinal edge-sealing of the long side of the cardboard, a longitudinal edge-sealing device with an edge-sealing belt is usually selected, and the edge-sealing belt on the longitudinal edge-sealing device is usually in a twisted state. The longitudinal edge-sealing belt completing the longitudinal edge-sealing of the cardboard shell is a mature existing technology and will not be described in detail.

[0079] For a cardboard edge-sealing production line, a main conveyor belt (usually a suction conveyor belt) is typically installed. The main conveyor belt transports the glued face paper. During transport, a robotic arm grabs cardboard from one side of the hopper and bonds it to the face paper on the main conveyor belt. The cardboard to be edge-sealed, composed of the cardboard and face paper, is then transported by the main conveyor belt to the longitudinal edge-sealing device. During transport, the longitudinal edge-sealing belts on both sides of the device press and bond the face paper extending beyond the long edges of the cardboard to the long edges, completing the longitudinal edge-sealing of the cardboard. Next, the edge-sealed cardboard is transported to a transfer conveyor belt 7 between the longitudinal and transverse edge-sealing devices. This conveyor belt 7 then transports the cardboard to be transversely edge-sealed to the transverse edge-sealing device, where the transverse edge-sealing is completed. The face paper extending beyond the short edges of the cardboard is pressed and bonded to the short edges, completing the transverse edge-sealing. Finally, the cardboard with all four edges edge-sealed is transported to the next process for further processing and assembly.

[0080] It is understandable that the longitudinal and transverse edge-sealing processes of the cardboard to be edge-sealed can be interchanged.

[0081] In the embodiments described in this utility model, the robotic arm grabs the cardboard in one side of the hopper and attaches it to the face paper on the main conveyor belt, and the longitudinal edge-sealing belt completes the longitudinal edge sealing of the cardboard shell. These are all mature existing technologies and will not be described in detail here.

[0082] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A casing edge-wrapping device, characterized in that, The device includes a material transfer mechanism (1) and an edge-sealing mechanism (2) located at the edge-sealing station (200). The edge-sealing mechanism (2) includes an edge-sealing plate (21), which can reciprocate in the edge-sealing direction. The material transfer mechanism (1) includes a suction cup (11) and a suction cup beam (13). The suction cup (11) is mounted on the suction cup beam (13) via a suction cup lifting mechanism (14). The suction cup beam (13) can drive the suction cup (11) and its... The cardboard to be edged is moved to the edge-binding station (200). When the cardboard to be edged is located at the edge-binding station (200), the suction cup lifting mechanism (14) can drive the suction cup (11) and the cardboard to be edged to move down, so that the paper exceeding the edge of the cardboard to be edged acts on the edge-binding plate (21) and is folded up by the edge-binding plate (21) during the downward movement. The edge-binding plate (21) drives the folded paper to move towards the edge-binding direction and stick to the cardboard.

2. The casing edge-wrapping device according to claim 1, characterized in that, The edge-binding device also includes a support plate (22), which is located inside the edge-binding plate (21). When the suction cup lifting mechanism (14) moves the cardboard to be bound down to fit with the support plate (22), the edge-binding plate (21) moves the folded paper upwards towards the edge-binding direction and fits onto the cardboard.

3. The casing edge-wrapping device according to claim 1, characterized in that, The edge-binding device also includes a support plate (22), which is located inside the edge-binding plate (21) and can move up and down. When the suction cup lifting mechanism (14) moves the cardboard to be edge-binded down to be in contact with the support plate (22), the support plate (22) moves down synchronously with the cardboard to be edge-binded. The paper extending beyond the edge of the cardboard to be edge-binded abuts against the edge-binding plate (21) and is folded up by the edge-binding plate (21) during the downward movement. The edge-binding plate (21) moves the folded paper towards the edge-binding direction and adheres to the cardboard.

4. The casing edge-wrapping device according to claim 1, characterized in that, The edge banding plate (21) is fixed on the frame by the edge banding plate mounting base (6), and the edge banding plate mounting base (6) is provided with an edge banding plate driving unit (23) for driving the edge banding plate (21) to move back and forth in the edge banding direction.

5. The casing edge-wrapping device according to claim 1, characterized in that, The edge-binding device also includes a paper feeding conveyor belt (3), which is located inside the edge-binding plate (21).

6. The casing edge-wrapping device according to claim 5, characterized in that, The edge-binding device also includes a paper feeding support mechanism (4), the support surface of which is flush with the conveying plane of the paper feeding conveyor belt (3).

7. The casing edge-wrapping device according to claim 6, characterized in that, The paper feeding support mechanism (4) is a roller support mechanism, which consists of a roller support frame and several support rollers set on the roller support frame. The roller support frame is connected to the machine frame.

8. An edge-binding machine, characterized in that, Includes the casing edge-wrapping device as described in any one of claims 1-7.

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