Leather shell edge covering mechanism

Abstract

The utility model relates to a leather shell hemming mechanism which comprises a feeding device, a material pressing device and a hemming device, the feeding device comprises a paper feeding belt and a pressing wheel which are used for longitudinal feeding, the material pressing device comprises a lifting type material pressing component, the material pressing component is arranged above the paper feeding belt, the material pressing component is located on the outer side of the pressing wheel, and the hemming device is arranged on the paper feeding belt. The edge covering device comprises an edge covering plate, a lifting frame and a transverse moving frame, the edge covering plate is installed on the transverse moving frame, the transverse moving frame is arranged on the lifting frame, and the edge covering plate is arranged on the outer side of the material pressing component. After a paperboard is pressed on the paper feeding belt through the pressing wheel in a matched mode to be stably and accurately conveyed in place, the pressing component descends in a matched mode to press the relative inner position of the edge, to be subjected to edge covering, of the paperboard, and the problems that surface paper upwarps and deforms when folded upwards by the edge covering plate are solved. And when the edge covering plate moves inwards to fold the surface paper to the paperboard (the edge position to be covered), the paperboard can be prevented from being pushed to move, the edge of the paperboard is prevented from being tilted, the paperboard is prevented from moving in the edge covering process, and the edge covering effect and quality are relatively good.

Description

Technical Field

[0001] This utility model relates to a casing edge-wrapping mechanism. Background Technology

[0002] The outer shell is formed by pasting linerboard onto the surface of cardboard and then wrapping the edges. The edge-wrapping mechanism uses an edge-wrapping plate to fold the linerboard over the edges of the cardboard. During the edge-wrapping process, a pressing device is used to hold the cardboard in place to ensure that the linerboard folds smoothly and stably. When the edge-wrapping plate wraps the cardboard edges, it must tightly wrap the folded linerboard over the edges of the cardboard. Stable and efficient cardboard input improves efficiency and edge-wrapping quality.

[0003] Furthermore, the thickness of different batches of cardboard varies, and the pressing device is usually set with pressure for thinner cardboard, which makes it easy to create indentations on thicker cardboard, affecting the quality of the casing. The edge-sealing mechanism must not only meet the needs of cardboard of different thicknesses, but also ensure the quality of the edge sealing.

[0004] In addition, since different batches of cardboard have different thicknesses, the stroke of the face paper after folding it upwards and then wrapping it inwards needs to match the thickness of the cardboard, which helps to improve the edge-wrapping quality.

[0005] In addition, for narrow edge wrapping (the wrapping width is smaller, and the distance between the wrapping towards the center and the edge of the cardboard is shorter), it is even more important to ensure that the wrapping is tight and secure. Utility Model Content

[0006] In view of the technical problems existing in the background art, the present invention aims to provide a leather edging mechanism that can smoothly and stably complete the edging process.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a casing edge-wrapping mechanism, including a feeding device, a pressing device, and an edge-wrapping device, characterized in that: the feeding device includes a paper feeding belt and a pressure roller for longitudinal feeding, the pressure roller being disposed on the upper side of the paper feeding belt; the pressing device includes a lifting pressing component, the pressing component being disposed above the paper feeding belt and located outside the pressure roller; the edge-wrapping device includes an edge-wrapping plate, a lifting frame, and a transverse frame, the edge-wrapping plate being mounted on the transverse frame, the transverse frame being disposed on the lifting frame, and the edge-wrapping plate being disposed outside the pressing component.

[0008] The following optimizations or supplementary explanations can be made to the above technical solutions.

[0009] For example, the skin-wrapping mechanism also includes a support frame, on which a lifting and pressing drive cylinder is provided. The lifting and pressing drive cylinder is connected to the pressing component. The cylinder body of the lifting and pressing drive cylinder is mounted on the support frame. The piston rod of the lifting and pressing drive cylinder faces downward and is connected to a mounting plate. The pressing component includes a pressing plate and is mounted on the mounting plate.

[0010] For example, the support frame includes a top plate, the cylinder body of the lifting and pressing drive cylinder is located on the top plate, and the mounting plate is located below the top plate. The lifting and pressing drive cylinder is connected to an air source through a pipeline, and the pipeline is equipped with a pressure regulating valve for adjusting the pressing pressure of the lifting and pressing drive cylinder. Alternatively, the support frame includes a top plate, the cylinder body of the lifting and pressing drive cylinder is located on the top plate, and the mounting plate is located below the top plate. The pressing component has a connecting part with a connecting through hole. The mounting plate is equipped with a buffer assembly, which includes a pressure buffer spring and a bolt. The pressure buffer spring is sleeved on the bolt, and the lower end of the bolt passes through the connecting through hole of the connecting part and connects to the mounting plate. The pressure buffer spring is located above the connecting part. The mounting plate is equipped with an assembly through hole, and the top plate is equipped with a clearance through hole. The bolt is vertically arranged, with the upper head of the bolt passing through the clearance through hole and the lower end of the bolt passing through the assembly through hole and connecting to a nut.

[0011] For example, the pressing component uses a vertical pressing plate, the upper part of which is bent to form a connecting part for mating and connecting to the mounting plate.

[0012] In addition, the casing edging mechanism also includes a support plate, which is vertically arranged. The paper feeding belt is installed on the inner side of the support plate, and a lifting support seat for assembling the lifting frame is installed on the outer side of the support plate. The left and right sides of the support plate are respectively arranged on transverse rails for adjusting their left and right positions, and a support frame for assembling the pressing device is installed on the outer side of the support plate.

[0013] Specifically, the lifting frame is mounted on a lifting support base. The lifting support base is equipped with a vertical guide rail for guiding the lifting frame's lifting and lowering. The lifting support base is equipped with a first servo motor, which is connected to the lifting frame to achieve lifting and lowering. The first servo motor and the lifting frame are connected by a lead screw and nut structure. The lifting frame is equipped with a horizontal track that is higher on the outside and lower on the inside for guiding the transverse frame to move diagonally. The lifting frame is equipped with a second servo motor, which is connected to the transverse frame to achieve transverse movement. The second servo motor and the transverse frame are connected by a swing arm and a connecting rod structure. The swing arm is connected to the second servo motor, and the two ends of the connecting rod are respectively hinged to the swing arm and the transverse frame.

[0014] In addition, the pressure rollers are arranged longitudinally on the movable pressure frame. The support frame is also provided with a first swing arm and a second swing arm distributed front to back. One end of the first swing arm is hinged to the support frame, and the other end of the first swing arm is hinged to the movable pressure frame. One end of the second swing arm is hinged to the support frame, and the other end of the second swing arm is hinged to the movable pressure frame. A spring component for applying downward pressure to the movable pressure frame is also provided between the movable pressure frame and the support frame.

[0015] In this design, the front end of the first swing arm is hinged to the support frame, and the rear end of the first swing arm is hinged to the movable pressure frame. The front end of the second swing arm is hinged to the support frame, and the rear end of the second swing arm is hinged to the movable pressure frame. Spring components are distributed front and rear. The support frame has a first spring connection part, and the movable pressure frame has a second spring connection part. The spring components are positioned between the first spring connection part and the second spring connection part. The first spring connection part has a first spring seat, and the second spring connection part has a second spring seat. The second spring seat has a spring support rod, and the spring components are sleeved on the spring support rod. The first spring seat has a through hole for the spring support rod to pass through, and there is a fitting clearance between the through hole and the spring support rod to allow the spring support rod to swing.

[0016] The beneficial effects of this utility model are as follows: In this edge-wrapping mechanism, the cardboard is stably and accurately conveyed to its position by the pressure rollers pressing it onto the paper feeding belt, and then the pressing component lowers to press down on the relatively inward part of the edge of the cardboard to be wrapped. This avoids problems such as the face paper warping and deforming when it is folded upward by the edge-wrapping plate. It also prevents the cardboard from being pushed and shifted when the edge-wrapping plate moves inward to fold the face paper onto the cardboard (the edge to be wrapped). In its structure, from the inside out, there are pressure rollers, lifting pressing components, and edge-wrapping plates. The structure layout is reasonable. The cardboard is efficiently and stably conveyed to its position by the pressure rollers and the paper feeding belt and output after edge wrapping. The pressing component presses down on the cardboard to ensure that the edge-wrapping plate wraps the edge stably, avoiding the edge of the cardboard from warping and shifting during the edge-wrapping process. The edge-wrapping effect is relatively good. Attached Figure Description

[0017] The following description, in conjunction with the accompanying drawings, details the embodiments and working principles of this utility model.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model; the edge-binding device is not shown in the figure.

[0019] Figure 2 for Figure 1 A structural diagram from another angle, with some parts of the structure hidden.

[0020] Figure 3 for Figure 1 Another structural diagram, concealing the feeding device and showing the edge-binding device; it also shows... Figure 1 Different types of pressing devices.

[0021] Figure 4 This is a schematic diagram of the pressure material component in the utility model.

[0022] In the picture:

[0023] 1. Support frame; 10. Top plate; 11. Clearance hole;

[0024] 2. Paper feeding belt;

[0025] 3. Pressure roller;

[0026] 4. Movable pressure frame; 41. First swing arm; 42. Second swing arm; 43. Longitudinal plate section; 44. Vertical plate section;

[0027] 5. Spring assembly; 51. First spring connection part; 52. Second spring connection part; 53. Spring support rod; 54. Through hole;

[0028] 6. Pressing component; 60. Lifting and pressing drive cylinder; 61. Mounting plate; 62. Connecting part; 63. Connecting through hole; 64. Assembly through hole;

[0029] 7. Edge banding plate; 70. Screw and nut structure; 71. Lifting frame; 72. Horizontal moving frame; 73. Swing arm; 74. Lifting support seat; 741. Edge banding device mounting position; 75. Horizontal rail; 76. Vertical guide rail; 77. First servo motor; 78. Second servo motor; 79. Connecting rod;

[0030] 8. Buffer assembly; 80. Pressure buffer spring; 81. Bolt; 82. Nut;

[0031] 91. Feeding device; 92. Pressing device; 93. Edge wrapping device; 94. Support plate. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the implementation of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0033] See appendix Figure 1-3 In this embodiment, the edge-wrapping mechanism includes a feeding device 91, a pressing device 92, and an edge-wrapping device 93. The feeding device 91 includes a paper feeding belt 2 and a pressure roller 3 for longitudinal feeding (front and back). The pressure roller 3 is disposed on the upper side of the paper feeding belt 2. The pressure roller 3 cooperates to press the paperboard onto the paper feeding belt 2 and move it to avoid displacement, ensuring that the paperboard arrives stably at the edge-wrapping device 93 for edge-wrapping treatment.

[0034] Combination Figure 1-3The pressing device 92 includes a lifting pressing component 6, which is positioned above the paper feeding belt 2 and located outside the pressure roller 3. By lowering, the pressing component 6 can press the edge of the cardboard to be wrapped relatively inward and can directly press it onto the paper feeding belt 2, ensuring that the edge of the cardboard to be wrapped will not lift up after being processed by the wrapping plate 7, resulting in stable wrapping and relatively good wrapping quality.

[0035] Combination Figure 2 The edge-binding device 93 includes an edge-binding plate 7, a lifting frame 71, and a transverse frame 72. The edge-binding plate 7 is mounted on the transverse frame 72, which is positioned on the lifting frame 71. The edge-binding plate 7 is located outside the pressing component 6. The edge-binding plate 7 moves laterally (left-right) on the lifting frame 71 along with the transverse frame 72. The edge-binding plate 7 and the transverse frame 72 rise and fall together with the lifting frame 71. In this structure, the edge-binding plate 7 rises to fold the paperboard face paper that extends beyond the edge of the cardboard upwards. Then, the edge-binding plate 7 moves laterally from the outside to the inside (center direction) to fold the folded face paper towards the upper surface of the cardboard, thus covering the edge of the cardboard to form an edge.

[0036] In this edge-wrapping mechanism, the cardboard is stably and accurately conveyed to its position by the pressure roller 3 pressing it against the paper feeding belt 2. Then, the pressing component 6 lowers and presses down on the relatively inward part of the edge of the cardboard to be wrapped, preventing the face paper from warping or deforming when it is folded upward by the edge-wrapping plate 7. It also prevents the cardboard from being pushed and shifted when the edge-wrapping plate 7 moves inward to fold the face paper onto the cardboard (the edge to be wrapped). In its structure, from the inside out, there are pressure roller 3, lifting pressing component 6, and edge-wrapping plate 7. The structure layout is reasonable. The cardboard is efficiently and stably conveyed to its position by the pressure roller 3 and the paper feeding belt 2 and output after edge wrapping. The pressing component 6 presses down on the cardboard to allow the edge-wrapping plate 7 to wrap it stably, preventing the edge of the cardboard from warping or shifting during the edge-wrapping process. The edge-wrapping effect is relatively good.

[0037] The following optimizations or further explanations can be made based on the above embodiments.

[0038] For example, refer to Figure 1-3 The casing edging mechanism also includes a support frame 1, on which a lifting and pressing drive cylinder 60 is provided. The lifting and pressing drive cylinder 60 is connected to the pressing component 6 for transmission. The lifting and pressing drive cylinder 60 drives the pressing component 6 to rise and fall, which is a mature technology. In addition, the cylinder body of the lifting and pressing drive cylinder is mounted on the support frame 1. The piston rod of the lifting and pressing drive cylinder faces downward and is connected to the mounting plate 61. The pressing component 6 includes a pressing plate. The pressing component 6 is located on the mounting plate 61, which is convenient for assembly and easy for the pressing plate to be replaced and maintained.

[0039] Typically, equipment uses gas cylinders as a unified gas source. To prevent incompatibility between different thicknesses of cardboard under the same air pressure, which could easily lead to indentations or impacts that cause the support frame 1 to loosen or deform, this embodiment refers to... Figure 3 The support frame 1 includes a top plate 10. The cylinder body of the lifting and pressing drive cylinder is located on the top plate 10, and the mounting plate 61 is located below the top plate 10. The lifting and pressing drive cylinder is connected to an air source through a pipeline. The pipeline is equipped with a pressure regulating valve (not shown in the figure) for adjusting the pressing pressure of the lifting and pressing drive cylinder. By adjusting the pressure regulating valve, the pressure of the lifting and pressing drive cylinder on the cardboard is adjusted to avoid excessive reaction force affecting the stability of the support frame 1. It can also avoid or mitigate the formation of indentations on the cardboard that affect quality by adjusting the pressure. Alternatively, refer to... Figure 1 The support frame 1 includes a top plate 10, the cylinder body of the lifting and pressing drive cylinder is located on the top plate 10, the mounting plate 61 is located below the top plate 10, the pressing component 6 has a connecting part 62, the connecting part 62 has a connecting through hole 63, the mounting plate 61 is provided with a buffer assembly 8, the buffer assembly 8 includes a pressure buffer spring 80 and a bolt 81, the pressure buffer spring 80 is sleeved on the bolt 81, the bolt 81 can cooperate to allow the pressure buffer spring 80 to be assembled and operated, the lower end of the bolt 81 passes through the connecting through hole 63 of the connecting part 62 and is connected to the mounting plate 61, the pressure buffer spring 80 is located above the connecting part 62, and the pressure buffer spring 80 and the pressing component 6 (its connecting part 62) are connected by the bolt 81. When the lifting and pressing cylinder drives the mounting plate 61 to descend into position, the pressing component 6 can float and rise relative to the mounting plate 61 and be kept under pressure by the pressure buffer spring 80, thus avoiding or mitigating indentations on the cardboard and adapting to the pressing needs of cardboard of different thicknesses. Specifically, the mounting plate 61 is provided with an assembly through hole 64, the top plate 10 is provided with a clearance through hole 11, the bolt 81 is set vertically, the upper end of the bolt 81 passes through the clearance through hole 11, and the lower end of the bolt 81 passes through the assembly through hole 64 and is connected to the nut 82. The structure is relatively compact. The force of the pressure buffer spring 80 can also be adjusted by the nut 82 to adjust the pressure of the pressing component 6 on the cardboard.

[0040] refer to Figure 4 The pressing component 6 is a vertical pressing plate, the upper part of which is bent to form a connecting part 62 for connecting to the mounting plate 61. The vertical pressing plate on the outside of the pressing roller 3 can also cooperate to limit and guide the undulating movement of the pressing roller 3.

[0041] refer to Figure 1The sheathing mechanism also includes a support plate 94, which is vertically arranged. The paper feeding belt 2 is installed on the inner side of the support plate 94, and a lifting support seat 74 for assembling the lifting frame 71 is installed on the outer side of the support plate 94. The left and right sides of the support plate 94 are respectively set on transverse rails 75 for adjusting their left and right positions. The spacing between the left and right support plates 94 can be adjusted as needed to accommodate the sheathing requirements of different left and right transverse dimensions of cardboard. By adjusting, the cardboard can be clamped and conveyed by the pressure roller 3 and the paper feeding belt 2 at the left and right edges, and pressed by the corresponding pressing component 6 and sheathed by the edge-sealing plate 7. The support frame 1 for assembling the pressing device 92 is installed on the outer side of the support plate 94. The inner and outer sides of the left and right support plates 94 are used for their installation. The structure is compact and makes full use of the inner and outer sides of the support plate 94. The middle position of the left and right support plates 94 is the inner side, and the outer positions of the left and right sides are the outer sides.

[0042] In addition, refer to Figure 3 The lifting frame 71 is mounted on the lifting support base 74. A vertical guide rail 76 is provided on the lifting support base 74 to guide the lifting frame 71 in its movement. A first servo motor 77 is mounted on the lifting support base 74. The first servo motor 77 is connected to the lifting frame 71 to achieve lifting. The first servo motor 77 drives the lifting frame 71 to move up and down along the vertical guide rail 76 on the lifting support base 74. The lifting stroke driven by the first servo motor 77 is adjustable and highly precise, and the technology of using the first servo motor 77 to drive the lifting is relatively mature. For example, the first servo motor 77 and the lifting frame 71 are connected by a lead screw and nut structure 70. The lifting frame 71 is equipped with a horizontal track 75 that is higher on the outside and lower on the inside, which guides the horizontal moving frame 72 to move obliquely. A second servo motor 78 is installed on the lifting frame 71, and the second servo motor 78 is connected to the horizontal moving frame 72 to achieve horizontal movement. The second servo motor 78 drives the horizontal moving frame 72 to move obliquely on the (oblique) horizontal track 75. The edge-covering plate 7 moves along with the horizontal moving frame 72, moving from the higher position to the lower position. It can fold the face paper inward toward the cardboard while applying pressure to the cardboard and pulling it inward, thereby tightly covering the edge of the cardboard with the face paper. The bottom of the edge-covering plate 7 can be additionally equipped with a brush or velvet cloth, etc., to make the edge covering smoother. For example, the second servo motor 78 and the transverse frame 72 are connected by a swing arm 73 and a connecting rod 79. For instance, the swing arm 73 is connected to the second servo motor 78, causing the swing arm 73 to swing back and forth. The swing arm 73 can be connected to the rotating shaft of the second servo motor 78. The two ends of the connecting rod 79 are respectively hinged to the swing arm 73 and the transverse frame 72. The swing arm 73 pushes and pulls the transverse frame 72 on the (inclined) transverse track 75 through the connecting rod 79.

[0043] refer to Figure 1 , Figure 2The pressure roller 3 is positioned above the paper feeding belt 2 so that the pressure roller 3 and the paper feeding belt 2 work together to clamp the cardboard and transport it stably.

[0044] In addition, the pressure rollers 3 are arranged longitudinally on the movable pressure frame 4, which can achieve stable clamping and conveying within a certain range during the longitudinal conveying of the cardboard. Moreover, the entire row of multiple pressure rollers 3 can move together with the movable pressure frame 4.

[0045] The support frame 1 is also equipped with a first swing arm 41 and a second swing arm 42 arranged front and rear. One end of the first swing arm 41 is hinged to the support frame 1, and the other end of the first swing arm 41 is hinged to the movable pressure frame 4. One end of the second swing arm 42 is hinged to the support frame 1, and the other end of the second swing arm 42 is hinged to the movable pressure frame 4, so that the front and rear parts of the movable pressure frame 4 can move up and down respectively. In addition, a spring component 5 is provided between the movable pressure frame 4 and the support frame 1 for pressing the movable pressure frame 4 downward. The spring component 5 provides elastic force to the movable pressure frame 4, so that the movable pressure frame 4 cooperates to apply pressure under the action of the spring component 5, ensuring that each pressure roller 3 applies downward pressure to cooperate with the paper feeding belt 2 to clamp and transport the paperboard.

[0046] The pressure rollers 3 are uniformly installed on the movable pressure frame 4 and assembled together with the movable pressure frame 4. The front and rear parts (i.e., the input end and the output end) of the movable pressure frame 4 can move independently up and down. During the paperboard input and output process, the entire row of pressure rollers 3 can move up and down in sequence to apply pressure and convey the paperboard smoothly. The corresponding pressure rollers 3 of the entire row of the movable pressure frame 4 can effectively and stably cooperate to apply pressure one by one. Moreover, even if the paperboard is not completely output at the output end (loses from the pressure roller 3), it does not affect the pressure rollers 3 at the input end to cooperate in applying pressure. The input end of the movable pressure frame 4 can move up and down independently so that the pressure rollers 3 on the input side can apply pressure and cooperate in conveying the paperboard normally (subsequent paperboard input and transfer).

[0047] The row of pressure rollers 3 is conveniently assembled with the movable pressure frame 4, providing good paper feeding stability and adaptability to cardboard of different thicknesses. The front and rear (input and output ends) of the row of pressure rollers 3 can independently rise and fall with the movable pressure frame 4 (front and rear sections), allowing for smooth pressure feeding. The pressure rollers 3 on the input and output sides do not interfere with each other's normal pressure feeding, resulting in higher efficiency and practicality. For example, the front end of the first swing arm 41 is hinged to the support frame 1, and the rear end of the first swing arm 41 is hinged to the movable pressure frame 4. The front end of the second swing arm 42 is hinged to the support frame 1, and the rear end of the second swing arm 42 is hinged to the movable pressure frame 4, forming a structure where the first swing arm 41 and the second swing arm 42 are horizontally positioned between the support frame 1 and the movable pressure frame 4. The first swing arm 41 and the second swing arm 42 swing vertically in a horizontal position.

[0048] For example, the spring components 5 are distributed front and rear so that the front and rear of the movable pressure frame 4 are well subjected to elastic force. In addition, the support frame 1 is provided with a first spring connecting part 51, and the movable pressure frame 4 is provided with a second spring connecting part 52. The spring components 5 are arranged between the first spring connecting part 51 and the second spring connecting part 52 to facilitate the assembly and connection of the corresponding spring components 5. For example, a first spring seat is provided at the first spring connection part 51, and a second spring seat is provided at the second spring connection part 52. A spring support rod 53 is provided on the second spring seat, and the spring component 5 is sleeved on the spring support rod 53. A through hole 54 is provided on the first spring seat for the spring support rod 53 to pass through. There is a fitting gap between the through hole 54 and the spring support rod 53 to allow the spring support rod 53 to swing, so that the (front and rear) spring components 5 can smoothly provide elastic force to the movable pressure frame 4 (front and rear parts). This ensures that the front and rear parts (i.e., the input end and the output end) of the movable pressure frame 4 can smoothly apply pressure and cooperate with the paper feeding belt 2 during the independent up and down movement. During the paperboard input and paperboard output process, the entire row of pressure rollers 3 can rise and fall in sequence to cooperate and smoothly apply pressure and convey the paper. The corresponding pressure rollers 3 of the entire row of the movable pressure frame 4 can effectively and stably cooperate and apply pressure one by one. Specifically, the through hole 54 is a longitudinal elongated hole, and the spring support rod 53 is a round rod. The round rod is matched in the longitudinal elongated hole, which is stable in shaking and can stably shake in the vertical plane. The lower end of the spring support rod 53 stands on the second spring seat, and the first spring seat is located above the first spring seat. The upper end of the spring component 5 abuts against the first spring seat, and the lower end of the spring component 5 abuts against the second spring seat. The structure is reasonable and easy to process and assemble.

Claims

1. A casing edge-wrapping mechanism, comprising a feeding device (91), a pressing device (92), and an edge-wrapping device (93), characterized in that: The feeding device (91) includes a paper feeding belt (2) for longitudinal feeding and a pressure roller (3), the pressure roller (3) being disposed on the upper side of the paper feeding belt (2). The pressing device (92) includes a lifting pressing component (6), which is positioned above the paper feed belt (2) and located outside the pressure roller (3). The edge-binding device (93) includes an edge-binding plate (7), a lifting frame (71) and a transverse frame (72). The edge-binding plate (7) is mounted on the transverse frame (72), the transverse frame (72) is positioned on the lifting frame (71), and the edge-binding plate (7) is positioned on the outside of the pressing component (6).

2. The casing edge-wrapping mechanism as described in claim 1, characterized in that: It also includes a support frame (1), on which a lifting and pressing drive cylinder (60) is provided. The lifting and pressing drive cylinder (60) is connected to the pressing component (6) in a transmission manner. The cylinder body of the lifting and pressing drive cylinder (60) is mounted on the support frame (1), and the piston rod of the lifting and pressing drive cylinder (60) faces downward and is connected to the mounting plate (61). The pressing component (6) includes a pressing plate and is mounted on the mounting plate (61).

3. The casing edge-wrapping mechanism as described in claim 2, characterized in that: The support frame (1) includes a top plate (10), the cylinder body of the lifting and pressing drive cylinder (60) is located on the top plate (10), and the mounting plate (61) is located on the lower side of the top plate (10). The lifting and pressing drive cylinder (60) is connected to the air source through a pipeline, and the pipeline is equipped with a pressure regulating valve for adjusting the pressing pressure of the lifting and pressing drive cylinder (60).

4. The casing edge-wrapping mechanism as described in claim 2, characterized in that: The support frame (1) includes a top plate (10), the cylinder body of the lifting and pressing drive cylinder (60) is located on the top plate (10), and the mounting plate (61) is located on the lower side of the top plate (10). The pressing component (6) has a connecting part (62), the connecting part (62) has a connecting through hole (63), and the mounting plate (61) is provided with a buffer assembly (8). The buffer assembly (8) includes a pressure buffer spring (80) and a bolt (81). A pressure buffer spring (80) is sleeved on a bolt (81). The lower end of the bolt (81) passes through the connecting hole (63) of the connecting part (62) and is connected to the mounting plate (61). The pressure buffer spring (80) is located on the upper side of the connecting part (62).

5. The casing edge-wrapping mechanism as described in claim 4, characterized in that: The mounting plate (61) is provided with mounting through holes (64). The top plate (10) is provided with a clearance through hole (11). The bolt (81) is set vertically, and the upper end of the bolt (81) passes through the clearance hole (11). The lower end of the bolt (81) passes through the mounting hole (64) and is connected to the nut (82).

6. The casing edge-wrapping mechanism as described in any one of claims 1-5, characterized in that: The pressing component (6) adopts a vertical pressing plate, and the upper part of the vertical pressing plate is bent to form a connecting part (62) for mating and connecting to the mounting plate (61).

7. The casing edge-wrapping mechanism as described in claim 1, characterized in that: It also includes a support plate (94), which is vertically arranged. The paper feeding belt (2) is installed on the inner side of the support plate (94), and a lifting support seat (74) for assembling the lifting frame (71) is installed on the outer side of the support plate (94). The left and right sides of the support plate (94) are respectively set on transverse rails (75) for adjusting its left and right positions. The support plate (94) is equipped with a support frame (1) for mounting the pressing device (92).

8. The casing edge-wrapping mechanism as described in claim 1, characterized in that: The lifting frame (71) is mounted on the lifting support base (74), and the lifting support base (74) is provided with a vertical guide rail (76) for guiding the lifting frame (71) to move up and down. The lifting support base (74) is equipped with a first servo motor (77), which is connected to the lifting frame (71) to achieve lifting. The first servo motor (77) and the lifting frame (71) are connected by a lead screw and nut structure (70); The lifting frame (71) is equipped with a transverse rail (75) that is higher on the outside and lower on the inside, which guides the transverse moving frame (72) to move obliquely. A second servo motor (78) is installed on the lifting frame (71). The second servo motor (78) is connected to the transverse frame (72) to achieve transverse movement. The second servo motor (78) and the transverse frame (72) are connected by a swing arm (73) and a connecting rod (79) structure. The swing arm (73) is connected to the second servo motor (78) for transmission, and the two ends of the connecting rod (79) are respectively hinged to the swing arm (73) and the transverse frame (72).

9. The casing edge-wrapping mechanism as described in claim 1, characterized in that: The pressure rollers (3) are arranged longitudinally on the movable pressure frame (4). The support frame (1) is also provided with a first swing arm (41) and a second swing arm (42) distributed in front and behind. One end of the first swing arm (41) is hinged to the support frame (1), and the other end of the first swing arm (41) is hinged to the movable pressure frame (4). One end of the second swing arm (42) is hinged to the support frame (1), and the other end of the second swing arm (42) is hinged to the movable pressure frame (4). A spring component (5) for applying downward pressure to the movable pressure frame (4) is also provided between the movable pressure frame (4) and the support frame (1).

10. The casing edge-wrapping mechanism as described in claim 9, characterized in that: The front end of the first swing arm (41) is hinged to the support frame (1), and the rear end of the first swing arm (41) is hinged to the movable pressure frame (4). The front end of the second swing arm (42) is hinged to the support frame (1), and the rear end of the second swing arm (42) is hinged to the movable pressure frame (4). The spring components (5) are arranged front and rear. The support frame (1) is provided with a first spring connection part (51). The movable pressure frame (4) is provided with a second spring connection part (52). The spring component (5) is disposed between the first spring connecting part (51) and the second spring connecting part (52); A first spring seat is provided at the first spring connection part (51). The second spring connection part (52) is provided with a second spring seat, and the second spring seat is provided with a spring support rod (53). The spring component (5) is sleeved on the spring support rod (53), and the first spring seat has a through hole (54) for the spring support rod (53) to pass through. There is a clearance between the through hole (54) and the spring support rod (53) to allow the spring support rod (53) to swing.

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