Novel edge covering device

Abstract

The utility model relates to the field of automobile production edge covering, in particular to a novel edge covering device which comprises a mounting base, a pressing mechanism, an edge covering mechanism and a pre-covering mechanism, a positioning and clamping mechanism is arranged on the upper end face of the mounting base in a sliding mode, a mounting block is arranged on the positioning and clamping mechanism, and a housing is arranged on the mounting block. A rotating device is arranged on the side, away from the mounting block, of the upper end face of the positioning and clamping mechanism, the edge covering mechanism is slidably arranged on the housing, a fixed supporting seat is arranged beside the mounting base, a supporting base is arranged on the upper end face of the fixed supporting seat, a lifting air cylinder is further arranged, and an output shaft of the lifting air cylinder drives the edge covering mechanism to vertically move. The problems that many defects exist in existing manual edge covering, the production cost of enterprises is increased, and the production efficiency is reduced are solved. The problems that in the prior art, the quality is difficult to guarantee through manual operation, the edge pasting accuracy cannot be guaranteed through edge covering material pasting, edge covering unevenness is likely to occur, and great negative effects are brought to the product quality are solved.

Description

Technical Field

[0001] This utility model relates to the field of edge banding in automobile production, specifically to a novel edge banding device. Background Technology

[0002] With the rapid development of the modern automotive industry, many manufacturing processes that were previously done manually are gradually being realized by advanced automated mechanical production equipment, leading to an increasing demand for automated manufacturing equipment and production lines. For example, the edge-wrapping process in automobile production is becoming increasingly automated.

[0003] The existing edge binding method mainly relies on manual edge binding, which has many drawbacks. For example, manual operation consumes a lot of time and manpower, which not only increases the production cost of enterprises but also reduces their production efficiency. Manual operation makes it difficult to guarantee quality, as the accuracy of the edge binding material cannot be guaranteed, and uneven edge binding is likely to occur, which will have a significant negative impact on product quality. Utility Model Content

[0004] The purpose of this utility model is to provide a new type of edge-binding device to solve the problem that edge binding is currently mainly done manually, which has many drawbacks. For example, manual operation consumes a lot of time and manpower, which not only increases the production cost of enterprises but also reduces their production efficiency. Manual operation is difficult to guarantee quality, and the accuracy of the edge-binding material cannot be guaranteed when it is applied manually, which can easily lead to uneven edge binding and have a significant negative impact on product quality.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A novel edge-wrapping mechanism includes a mounting base, a pressing mechanism, an edge-wrapping mechanism, and a pre-wrapping mechanism. A positioning and clamping mechanism is slidably provided on the upper end face of the mounting base. The positioning and clamping mechanism positions and clamps the edging mechanism in place by rotation. A mounting block is provided on the positioning and clamping mechanism, and a cover is provided on the mounting block. A rotating device is provided on the side of the upper end face of the positioning and clamping mechanism away from the mounting block. The rotating device is connected to the cover. The edging mechanism is slidably mounted on the cover. The pre-wrapping mechanism is rotatably mounted on the upper part of the cover. The pressing mechanism is mounted on the pre-wrapping mechanism. A fixed support base is provided on the side of the mounting base. A support base is provided on the upper end face of the fixed support base. A transverse cylinder is provided on the end face of the fixed support base away from the mounting base. The output shaft of the transverse cylinder is connected to the positioning and clamping mechanism and drives the positioning and clamping mechanism to move laterally. A lifting cylinder is also provided. The output shaft of the lifting cylinder is connected to the edging mechanism and drives the edging mechanism to move vertically. The rotating device can drive the cover to rotate.

[0007] Further specifying, the positioning and clamping mechanism includes a positioning slide rail and a support plate. The positioning slide rail is installed on the upper end face of the mounting base. A positioning slider is slidably connected on the positioning slide rail. The support plate is installed on the positioning slider. Support blocks are provided on both the left and right sides of the rear of the support plate. A positioning and clamping cylinder is provided on the support block. A positioning insert is provided on the output shaft of the positioning and clamping cylinder.

[0008] Further specifying, a support assembly is provided at the middle of the rear end of the support plate, the support assembly includes a left plate and a right plate, the cover includes a left cover and a right cover, the left cover and the right cover are rotatably disposed on the left and right sides of the support assembly, and also includes a rotating shaft, the rotating shaft passes through the left plate and the right plate, one end is disposed on the left cover and the other end is disposed on the right cover, the bottom of the cover is spaced relative to the support plate, the cover and the support block form a positioning space in the vertical state, and the positioning block is locked when inserted into the positioning space.

[0009] Further, the support plate has lower rotating blocks on both the left and right sides of its front end. One end of the lower rotating block is mounted on the support plate, and the other end is mounted on a rotary cylinder. The shuttle also includes an upper rotating block. The upper rotating block and the lower rotating block are symmetrically arranged. The front end of the cover has an extended support plate. One end of the upper rotating block is mounted on the extended support plate, and the other end is rotatably mounted on the output shaft of the rotary cylinder.

[0010] Further specified, the output shaft of the transverse cylinder passes through the fixed support base and is connected to the support plate, driving the support plate to move laterally. A compression spring is provided between the fixed support base and the support plate, and a limit block is provided on the end face of the fixed support base near the support plate.

[0011] Further specifying, the mounting base includes a left mounting base and a right mounting base, the lifting cylinder is disposed between the left mounting base and the right mounting base, the upper part of the lifting cylinder is provided with a fixed end plate, the extension support plate is fixedly mounted on the fixed end plate, and guide column fixing seats are provided on both the left and right sides of the extension support plate. The edge-wrapping mechanism includes an edge-wrapping base and an edge-wrapping clamping block, the edge-wrapping clamping block is mounted on the edge-wrapping base, the edge-wrapping base is disposed on the output shaft of the lifting cylinder, and a stroke clamping block is provided at the rear of the edge-wrapping base.

[0012] Further specified, the guide post fixing seat is provided with a guide post, the guide post passes through the edge-sealing base and is provided with a rising positioning block, the rear end of the support base is provided with an upper support device, the left and right sides of the upper support device are provided with sensors, the front end face of the cover is provided with a vertical slide rail, the vertical slide rail is slidably provided with a vertical slider, the vertical slide rail is connected to the rear end face of the edge-sealing base, the outer side wall of the cover is provided with a limit switch, the limit clamping block and the contact of the limit switch 27 are in the same position, used to trigger the limit switch signal.

[0013] Further specified, connecting arms and pre-wrapping rotating blocks are provided on adjacent end faces of the inner sides of the left and right covers. A first limiting block is provided above the connecting arm, and a second limiting block is provided below it. One end of the second limiting block is connected to the connecting arm, and the other end is connected to the rear end face of the edging base. The second limiting block is located between the vertical sliders on both sides. An upper rotating shaft is provided above the first limiting block. The pre-wrapping rotating block is rotatably mounted on the left and right covers via an independent rotating shaft. A middle block is provided below the pre-wrapping rotating block. The middle block is rotatably mounted on the independent rotating shaft above it, connected to the pre-wrapping mechanism in the middle, and a lower rotating shaft is provided below it. A first roller and a second roller are provided on the lower rotating shaft. The central axis of the second roller and the central axis of the second limiting block are on the same axis. The first limiting block is trapezoidal, and the outer end face of the first roller contacts the first limiting block. A slanted groove is provided on the second limiting block, and the slanted groove contacts the outer end face of the second roller.

[0014] Further specifying, the pre-packaging mechanism includes a pre-packaging clamping block and an upper clamping block, the upper clamping block is connected to the pre-packaging rotating block, the pre-packaging clamping block is connected to the middle part of the center block, and the clamping mechanism is disposed on the upper clamping block.

[0015] The advantages of this utility model over the current technology are as follows:

[0016] 1. It solves the problem that manual edging is difficult to guarantee quality, and that manual pasting of edging materials cannot guarantee the accuracy of the edging, which can easily lead to uneven edging.

[0017] 2. The rotatable cover can solve the problem of the edge-wrapping mechanism hitting the sheet metal parts that need to be edged when it moves in and out. Attached Figure Description

[0018] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0019] Figure 2 A schematic diagram showing the connection relationship between the positioning clamping mechanism, the cover, and the rotating device;

[0020] Figure 3 This is a schematic diagram showing the connection relationship between the transverse cylinder and the positioning and clamping mechanism.

[0021] Figure 4 A schematic diagram showing the connection relationship between the lifting cylinder and the edge-sealing mechanism;

[0022] Figure 5 A schematic diagram showing the connection between the support base and the cover;

[0023] Figure 6 This is a schematic diagram showing the connection between the pre-packaging mechanism and the casing.

[0024] The markings in the diagram correspond to: 1-Mounting base, 2-Pressure mechanism, 3-Edging mechanism, 31-Edging base, 32-Edging clamping block, 4-Pre-wrapping mechanism, 5-Positioning clamping mechanism, 51-Positioning slide rail, 52-Support plate, 53-Positioning slider, 54-Positioning clamping cylinder, 55-Positioning insert, 6-Mounting block, 7-Cover, 71-Left cover, 72-Right cover, 8-Rotating device, 81-Lower rotating block, 82-Rotating cylinder, 83-Upper rotating block, 9-Fixed support base, 10-Supporting base, 11-Horizontal cylinder, 12-Lifting cylinder, 13-Left plate, 14-Right plate, 1 5-Rotating shaft, 16-Positioning space, 17-Extension support plate, 18-Compression spring, 19-Lifting cylinder, 20-Fixed end plate, 21-Guide column fixing seat, 22-Guide column, 23-Rising to position block, 24-Sensor, 25-Vertical slide rail, 26-Vertical slider, 27-Limit switch, 28-Connecting arm, 29-Pre-wrap rotating block, 40-First limit block, 41-Second limit block, 42-Upper rotating shaft, 43-Independent rotating shaft, 44-Middle block, 45-First roller, 46-Second roller, 47-Pre-wrap clamping block, 48-Upper clamping block, 49-Stroke clamping block. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments. Example

[0026] like Figures 1-6 As shown, a novel edge-wrapping device includes a mounting base 1, a clamping mechanism 2, an edge-wrapping mechanism 3, and a pre-wrapping mechanism 4. A positioning clamping mechanism 5 is slidably mounted on the upper surface of the mounting base 1. The positioning clamping mechanism 5 positions and clamps the edge-wrapping mechanism 3 in place. A mounting block 6 is mounted on the positioning clamping mechanism 5, and a cover 7 is mounted on the mounting block 6. A rotating device 8 is mounted on the side of the upper surface of the positioning clamping mechanism 5 away from the mounting block 6. The rotating device 8 is connected to the cover 7. The edge-wrapping mechanism 3 is slidably mounted on the cover 7. The pre-wrapping mechanism 4 is rotatably mounted on the cover 7. The pressing mechanism 2 is located on the pre-wrapping mechanism 4 and is placed on the upper part of the cover 7. A fixed support 9 is provided on the side of the mounting base 1. A support base 10 is provided on the upper end face of the fixed support 9. A transverse cylinder 11 is provided on the side end face of the fixed support 9 away from the mounting base 1. The output shaft of the transverse cylinder 11 is connected to the positioning clamping mechanism 5 and drives the positioning clamping mechanism 5 to move laterally. A lifting cylinder 12 is also provided. The output shaft of the lifting cylinder 12 is connected to the edge wrapping mechanism 3 and drives the edge wrapping mechanism 3 to move vertically. The rotating device 8 can drive the cover 7 to rotate.

[0027] The positioning and clamping mechanism 5 includes a positioning slide rail 51 and a support plate 52. The positioning slide rail 51 is mounted on the upper surface of the mounting base 1. A positioning slider 53 is slidably connected to the positioning slide rail 51. The support plate 52 is mounted on the positioning slider 53. Support blocks are provided on both the left and right sides of the rear of the support plate 52. A positioning and clamping cylinder 54 is provided on the support block. A positioning insert 55 is provided on the output shaft of the positioning and clamping cylinder 54. A support assembly is provided in the middle of the rear end of the support plate 52. The support assembly includes a left plate 13 and a right plate 14. 4. The cover includes a left cover 71 and a right cover 72, which are rotatably mounted on the left and right sides of the support assembly, respectively. It also includes a rotating shaft 15, which passes through the left plate 13 and the right plate 14. One end of the rotating shaft 15 is mounted on the left cover 71 and the other end is mounted on the right cover 72. The bottom of the cover 7 is spaced relative to the support plate 52 and is in a suspended state. When the cover 7 is in a vertical state, a positioning space 16 is formed between it and the support block. When the positioning block 55 is inserted into the positioning space 16, it is in a locked state.

[0028] The support plate 52 has a lower rotating block 81 on both the left and right sides of its front end. One end of the lower rotating block 81 is mounted on the support plate 52, and the other end is mounted on a rotary cylinder 82. It also includes an upper rotating block 83. The upper rotating block 83 and the lower rotating block 81 are arranged symmetrically. The front end of the cover 7 is provided with an extended support plate 17. One end of the upper rotating block 83 is mounted on the extended support plate 17, and the other end is rotatably mounted on the output shaft of the rotary cylinder 82.

[0029] The output shaft of the transverse cylinder 11 passes through the fixed support base 9 and is connected to the support plate 52, driving the support plate 52 to move laterally. A compression spring 18 is provided between the fixed support base 9 and the support plate 52. A limit block is provided on the end face of the fixed support base 9 near the support plate 52. The mounting base 1 includes a left mounting base and a right mounting base. The lifting cylinder 19 is located between the left mounting base and the right mounting base. A fixed end plate 20 is provided on the upper part of the lifting cylinder 19. The extension support plate 17 is fixedly installed on the fixed end plate 20. Guide column fixing seats 21 are provided on both the left and right sides of the extension support plate 17. The edge-wrapping mechanism 3 includes an edge-wrapping base 31 and an edge-wrapping clamping block 32. The edge-wrapping clamping block 32 is installed on the edge-wrapping base 31. The upper edge base 31 is mounted on the output shaft of the lifting cylinder 19. A stroke clamping block 49 is provided at the rear of the edge base 31. A guide column 22 is provided on the guide column fixing seat 21. The guide column 22 passes through the edge base 31 and is provided with a rising positioning block 23. An upper support device is provided at the rear end of the support base 10. Sensors 24 are provided on the left and right sides of the upper support device. A vertical slide rail 25 is provided on the front end face of the cover 7. A vertical slider 26 is slidably mounted on the vertical slide rail 25. The vertical slide rail 25 is connected to the rear end face of the edge base 31. A limit switch 27 is provided on the outer wall of the cover 7. The contacts of the stroke clamping block 49 and the limit switch 27 are in the same position to trigger the signal of the limit switch 27.

[0030] Connecting arms 28 and pre-wrapping rotating blocks 29 are provided on the adjacent end faces of the inner sides of the left cover 71 and the right cover 72. A first limiting block 40 is provided above the connecting arm 28, and a second limiting block 41 is provided below it. One end of the second limiting block 41 is connected to the connecting arm 28, and the other end is connected to the rear end face of the edge-wrapping base 31. The second limiting block 41 is located between the two vertical sliders 26. An upper rotating shaft 42 is provided above the first limiting block 41. The pre-wrapping rotating block 29 is rotatably mounted on the left cover 71 and the right cover 72 via an independent rotating shaft 43. A middle block 44 is provided below the pre-wrapping rotating block 29, and the middle block 44 is rotatably mounted on the independent rotating shaft 43. The upper part is connected to the pre-packaging mechanism 4 in the middle, and the lower part is provided with a lower rotating shaft. The lower rotating shaft is provided with a first roller 45 and a second roller 46. The central axis of the second roller 46 and the central axis of the second limiting block 41 are on the same axis. The first limiting block 40 is trapezoidal. The outer end face of the first roller 45 is in contact with the first limiting block 40. The second limiting block 41 is provided with a slanted groove, which is in contact with the outer end face of the second roller 46. The pre-packaging mechanism 4 includes a pre-packaging pressing block 47 and an upper pressing block 48. The upper pressing block 48 is connected to the pre-packaging rotating block 29. The pre-packaging pressing block 47 is connected to the middle part of the middle block 44. The pressing mechanism 2 is provided on the upper pressing block 48.

[0031] In use, the sheet metal to be edged is placed. The sensor 24 of the upper support device detects that the sheet metal is in place, and the output shafts of the left and right positioning clamping cylinders 54 and the left and right rotating cylinders 82 extend. Since the output shafts of the rotating cylinders 82 are connected to the edge-binding mechanism 3, the edge-binding mechanism 3 rotates around the rotating shaft 15 to an inclined state, preventing it from colliding with the sheet metal to be edged when it moves in and out. The output shaft of the transverse cylinder 11 is connected to the support plate 52, and the support plate 52 is connected to the positioning slider 53. When the transverse cylinder 11 retracts, it drives the edge-binding mechanism 3 to the working position. The output shaft of the rotating cylinder 82 retracts, causing the edge-binding mechanism 3 to rotate back to a vertical position. Then, the output shaft of the positioning clamping mechanism cylinder 54 retracts, clamping and positioning the edge-binding mechanism 3. At this time, the pressing machine 2 presses the sheet metal to be edged, and the lifting cylinder 12 moves... The lifting cylinder 12 moves the edge-wrapping mechanism 3 above the cylinder to rise synchronously. During the rise, the first limit block 40 will first contact the first roller 45. Due to its special shape, the pre-wrapping mechanism 4 will rotate around the upper rotation 42 during the rise. The pre-wrapping clamping block 47 pre-wraps and bends the sheet metal. Then the second limit block 41 contacts the second roller 46, causing the pre-wrapping mechanism 4 to rotate in the opposite direction around the upper rotation axis 42, giving the edge-wrapping clamping block 32 space to avoid the edge-wrapping clamping block 32. As the edge-wrapping mechanism 3 above the lifting cylinder 12 rises to the position, the sheet metal is wrapped for the last time. At this time, the stroke clamping block 49 will trigger the upper stroke switch 27. After automatic edge wrapping, the lifting cylinder 12 retracts and the edge-wrapping mechanism 3 descends. After descending to the position, the stroke clamping block 49 will trigger the lower stroke switch 27, the output shaft of the transverse cylinder 11 extends, and the edge-wrapping mechanism 3 completely exits the work.

[0032] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "first", "second", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] The above provides a detailed description of a novel edge-binding device provided by this utility model. The description of the specific embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the present utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A novel edge-binding device, characterized in that: The device includes a mounting base (1), a clamping mechanism (2), an edging mechanism (3), and a pre-wrapping mechanism (4). A positioning clamping mechanism (5) is slidably disposed on the upper end surface of the mounting base (1). The positioning clamping mechanism (5) positions and clamps the edging mechanism (3) in place by rotating it. A mounting block (6) is disposed on the positioning clamping mechanism (5), and a cover (7) is disposed on the mounting block (6). A rotating device (8) is disposed on the side of the upper end surface of the positioning clamping mechanism (5) away from the mounting block (6). The rotating device (8) is connected to the cover (7). The edging mechanism (3) is slidably disposed on the cover (7), and the pre-wrapping mechanism (4) is rotatably disposed on the cover (7). The pressing mechanism (2) is set on the pre-wrapping mechanism (4) at the upper part of the mounting base (1). A fixed support seat (9) is set on the side of the mounting base (1). A support base (10) is set on the upper end face of the fixed support seat (9). A horizontal cylinder (11) is set on the side end face of the fixed support seat (9) away from the mounting base (1). The output shaft of the horizontal cylinder (11) is connected to the positioning clamping mechanism (5) and drives the positioning clamping mechanism (5) to move laterally. A lifting cylinder (19) is also set. The output shaft of the lifting cylinder (19) is connected to the edge wrapping mechanism (3) and drives the edge wrapping mechanism (3) to move vertically. The rotating device (8) can drive the cover (7) to rotate.

2. The novel edge-binding device according to claim 1, characterized in that: The positioning and clamping mechanism (5) includes a positioning slide rail (51) and a support plate (52). The positioning slide rail (51) is installed on the upper end face of the mounting base (1). A positioning slider (53) is slidably connected on the positioning slide rail (51). The support plate (52) is installed on the positioning slider (53). Support blocks are provided on both the left and right sides of the rear of the support plate (52). A positioning and clamping cylinder (54) is provided on the support block. A positioning insert (55) is provided on the output shaft of the positioning and clamping cylinder (54).

3. The novel edge-binding device according to claim 2, characterized in that: A support assembly is provided at the middle of the rear end of the support plate (52). The support assembly includes a left plate (13) and a right plate (14). The cover (7) includes a left cover (71) and a right cover (72). The left cover (71) and the right cover (72) are rotatably disposed on the left and right sides of the support assembly, respectively. It also includes a rotating shaft (15). The rotating shaft (15) passes through the left plate (13) and the right plate (14). One end is disposed on the left cover (71) and the other end is disposed on the right cover (72). There is a gap between the bottom of the cover (7) and the support plate (52). The cover (7) forms a positioning space (16) between itself and the support block in a vertical state. When the positioning plug (55) is inserted into the positioning space (16), it is in a locked state.

4. The novel edge-binding device according to claim 3, characterized in that: The support plate (52) has a lower rotating block (81) on both the left and right sides of its front end. One end of the lower rotating block (81) is set on the support plate (52), and the other end is set with a rotary cylinder (82). It also includes an upper rotating block (83). The upper rotating block (83) and the lower rotating block (81) are symmetrically arranged. The front end of the cover (7) is provided with an extension support plate (17). One end of the upper rotating block (83) is installed on the extension support plate (17), and the other end is rotatably set on the output shaft of the rotary cylinder (82).

5. A novel edge-binding device according to claim 4, characterized in that: The output shaft of the transverse cylinder (11) passes through the fixed support base (9) and the support plate (52) and drives the support plate (52) to move laterally. A compression spring (18) is provided between the fixed support base (9) and the support plate (52). A limit block is provided on the end face of the fixed support base (9) near the support plate (52).

6. The novel edge-binding device according to claim 5, characterized in that: The mounting base (1) includes a left mounting base and a right mounting base. The lifting cylinder (19) is located between the left mounting base and the right mounting base. A fixed end plate (20) is provided on the upper part of the lifting cylinder (19). The extension support plate (17) is fixedly installed on the fixed end plate (20). Guide column fixing seats (21) are provided on the left and right sides of the extension support plate (17). The edge wrapping mechanism (3) includes an edge wrapping base (31) and an edge wrapping clamping block (32). The edge wrapping clamping block (32) is installed on the edge wrapping base (31). The edge wrapping base (31) is located on the output shaft of the lifting cylinder (19). A stroke clamping block (49) is provided at the rear of the edge wrapping base (31).

7. A novel edge-binding device according to claim 6, characterized in that: The guide post fixing seat (21) is provided with a guide post (22), the guide post (22) passes through the edge base (31) and is provided with a rising block (23), the rear end of the support base (10) is provided with an upper support device, the left and right sides of the upper support device are provided with sensors (24), the front end face of the cover (7) is provided with a vertical slide rail (25), the vertical slide rail (25) is slidably provided with a vertical slider (26), the vertical slide rail (25) is connected to the rear end face of the edge base (31), the outer side wall of the cover (7) is provided with a limit switch (27), the limit clamping block (49) and the contact of the limit switch (27) are in the same position, which is used to trigger the signal of the limit switch (27).

8. A novel edge-binding device according to claim 7, characterized in that: Connecting arms (28) and pre-wrapping rotating blocks (29) are provided on adjacent end faces of the inner sides of the left cover (71) and the right cover (72). A first limiting block (40) is provided above the connecting arm (28), and a second limiting block (41) is provided below it. One end of the second limiting block (41) is connected to the connecting arm (28), and the other end is connected to the rear end face of the edge-wrapping base (31). The second limiting block (41) is located between the vertical sliders (26) on both sides. An upper rotating shaft (42) is provided above the first limiting block (40). The pre-wrapping rotating block (29) is rotatably mounted on the left cover (71) and the right cover (72) via an independent rotating shaft (43). A center block (44) is provided below the pre-packaging rotating block (29). The center block (44) is rotatably mounted on the independent rotating shaft (43) above it. The center part is connected to the pre-packaging mechanism (4) in the middle. A lower rotating shaft is provided at the bottom. A first roller (45) and a second roller (46) are provided on the lower rotating shaft. The central axis of the second roller (46) and the central axis of the second limiting block (41) are on the same axis. The first limiting block (40) is trapezoidal. The outer end face of the first roller (45) is in contact with the first limiting block (40). The second limiting block (41) is provided with a slanted groove. The slanted groove is in contact with the outer end face of the second roller (46).

9. A novel edge-binding device according to claim 8, characterized in that: The pre-packaging mechanism (4) includes a pre-packaging pressing block (47) and an upper pressing block (48). The upper pressing block (48) is connected to the pre-packaging rotating block (29). The pre-packaging pressing block (47) is connected to the middle part of the middle block (44). The pressing mechanism (2) is disposed on the upper pressing block (48).

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