A continuous automatic corner protector

Abstract

The utility model discloses a continuous type automatic corner protection device belongs to the field of cosmetic packing, including box centering clamping rotation support mechanism, two automatic nailing mechanism respectively sets up in the left side and the back of box centering clamping rotation support mechanism, the inside support type corner protection material transfer mechanism sets up in the right side of box centering clamping rotation support mechanism, and the corner protection storage mechanism sets up in the back of inside support type corner protection material transfer mechanism, and inside support type corner protection material transfer mechanism is used for transferring paper corner protection from corner protection storage mechanism to the corner of packing box and compresses tightly, and box centering clamping rotation support mechanism includes box support table, centering clamping subassembly and box rotary table, and the box rotary table is connected in the lower extreme of centering clamping subassembly, and the box rotary table is used for making packing box rotate, and centering clamping subassembly connects in the lower extreme of box support table, and centering clamping subassembly is used for centering clamping packing box. Through above -mentioned mode, utilize a upper corner protection point position to realize the continuous type automatic installation to all corner protections of box.

Description

Technical Field

[0001] This utility model relates to the field of cosmetic packaging, specifically to a continuous automatic corner protector device. Background Technology

[0002] In the field of cosmetic packaging, corner protectors are usually installed on the corners of the packaging box to ensure the safety of the product during transportation.

[0003] When manually installing corner protectors on cosmetic packaging boxes, the installer first needs to manually place the corner protector at one inner corner of the box, and then use a nail gun to nail the corner protector to the box on the outside of the product packaging box. The above operation is then repeated until all the corner protectors of the packaging box are installed. Not only is the manual labor intensity high and the corner protector installation efficiency low, but also the lack of precision in manual positioning makes it difficult to guarantee the overall quality of the product, thus failing to meet the demand for high-quality bulk orders.

[0004] Based on this, the present invention designs a continuous automatic corner protection device to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a continuous automatic corner protection device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A continuous automatic corner protector packaging device includes a box centering clamping and rotating support mechanism, an automatic nailing mechanism, an inner support corner protector transfer mechanism, and a corner protector storage mechanism. The two automatic nailing mechanisms are respectively located on the left and rear sides of the box centering clamping and rotating support mechanism, and work together to nail adjacent sides of one inner corner of the packaging box. The inner support corner protector transfer mechanism is located on the right side of the box centering clamping and rotating support mechanism, and the corner protector storage mechanism is located behind the inner support corner protector transfer mechanism. The inner support corner protector transfer mechanism is used to transfer paper corner protectors from the corner protector storage mechanism to the inner corner of the packaging box and press them firmly. The box centering clamping and rotating support mechanism includes a box support platform, a centering clamping assembly, and a box rotating platform. The rotating surface of the box rotating platform is connected to the lower end of the centering clamping assembly, and the box rotating platform is used to rotate the packaging box. The centering clamping assembly is connected to the lower end of the box support platform and is used to center and clamp the packaging box. The box support platform is used to support the packaging box.

[0008] Furthermore, the centering clamping assembly includes a centering clamping fixing assembly and a centering clamping driving assembly. The centering clamping fixing assembly is provided in four sets and is evenly installed on the box support platform in a circumferential array. The centering clamping driving assembly is installed on the rotating table of the box rotation table to drive the four sets of centering clamping fixing assemblies to move synchronously.

[0009] Furthermore, the centering clamping and fixing assembly includes a clamping plate, a slider, and a connecting rod. A groove is radially opened on the box support platform. The slider is slidably connected to the groove. The lower end of the slider is rotatably connected to one end of the connecting rod. The upper end of the slider is fixedly connected to the clamping plate. The clamping plate clamps the side of the packaging box.

[0010] Furthermore, the centering clamping drive assembly includes a synchronous rotating block and a central motor. The synchronous rotating block is rotatably connected to the end of the connecting rod away from the slider, and the synchronous rotating block is rotatably connected to the box support platform. The lower end of the central motor is fixedly connected to the rotating table surface of the box rotating platform, and the output end of the central motor is fixedly connected to the synchronous rotating block.

[0011] Furthermore, the automatic nailing mechanism includes an automatic nailing machine, a nail gun cylinder, and a support column. The upper end of the support column is fixedly connected to the nail gun cylinder, and the output end of the nail gun cylinder is fixedly connected to the automatic nailing machine.

[0012] Furthermore, the internal support corner protection material transfer mechanism includes an internal support suction cup assembly, a suction cup horizontal movement assembly, a servo push rod, and a suction cup rotary table. The rotary table surface of the suction cup rotary table is fixedly connected to the servo push rod, the output end of the servo push rod is connected to the suction cup horizontal movement assembly, and the suction cup horizontal movement assembly is connected to the internal support suction cup assembly.

[0013] Furthermore, the suction cup horizontal movement assembly includes a rack, a loop retaining ring, a gear, and a horizontal motor. The loop retaining ring is fixedly connected to the output end of the servo push rod, the loop retaining ring is slidably connected to the rack, the loop retaining ring is rotatably connected to the gear, the loop retaining ring is fixedly connected to the horizontal motor, the gear is meshed with the rack, and the output end of the horizontal motor is fixedly connected to the gear.

[0014] Furthermore, the internal support suction cup assembly includes a vacuum suction cup, a support plate, a spring, a guide tube, and a fixing block. The support plate is fixedly connected to the rack, and the two support plates are symmetrically distributed on the left and right sides of the rack. Two suction cup clearance holes and two nail gun clearance holes are opened on the support plate. The support plate is fixedly connected to the fixing block, and the fixing block is slidably connected to the guide tube. The two ends of the spring are fixedly connected to the fixing block and the vacuum suction cup, respectively. The vacuum suction cup is fixedly connected to the guide tube.

[0015] Furthermore, the corner protector storage mechanism includes a U-shaped block, side limiting plates, corner protector pressure plates, corner protector cylinders, and corner protector support platforms. The upper end of the corner protector support platform is fixedly connected to the U-shaped block. Paper corner protectors are stored in the U-shaped block. Two side limiting plates are fixedly connected to the front end of the U-shaped block. The side limiting plates are tilted outward at a certain angle to prevent the paper corner protectors from sliding out of the U-shaped block. The U-shaped block is fixedly connected to the corner protector cylinder. The output end of the corner protector cylinder is fixedly connected to the corner protector pressure plates, which are used to press the paper corner protectors.

[0016] Compared with the prior art, the advantages of this utility model are as follows: 1. By combining the internal support corner protector transfer mechanism and the automatic nailing mechanism, corner protectors can be installed on one inner corner of the packaging box. By driving the packaging box with the box rotating table, corner protectors can be installed on all inner corners of the packaging box automatically, achieving precise installation of corner protectors, high production efficiency, and meeting the need for continuous installation of corner protectors on batch packaging boxes.

[0017] 2. Through the combined action of the side limiting plate and the corner protector pressure plate, the paper corner protectors stored in the U-shaped block can be adsorbed and transferred by the nearby vacuum suction cup at any time, thereby ensuring the automation of the corner protector installation process and thus ensuring the speed and quality of corner protector installation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This utility model provides a three-dimensional continuous automatic corner protection device. Figure 1 ;

[0020] Figure 2 This is a front view of a continuous automatic corner protection device according to the present invention;

[0021] Figure 3 This is a left view of a continuous automatic corner protection device according to the present invention;

[0022] Figure 4 This utility model provides a three-dimensional continuous automatic corner protection device. Figure 2 ;

[0023] Figure 5 for Figure 4 Enlarged view of point A in the middle;

[0024] Figure 6 This utility model provides a three-dimensional continuous automatic corner protection device. Figure 3 ;

[0025] Figure 7 for Figure 6 Enlarged view of point B in the middle;

[0026] Figure 8 This is a schematic diagram of the internal support suction cup assembly in this utility model.

[0027] The labels in the diagram represent:

[0028] 1. Packaging box; 2. Paper corner protectors; 3. Box body centering, clamping, and rotating support mechanism; 31. Box body support platform; 32. Centering and clamping assembly; 321. Clamping plate; 322. Slider; 323. Slide groove; 324. Connecting rod; 325. Synchronous rotating block; 326. Central motor; 33. Box body rotating platform; 4. Automatic nailing mechanism; 41. Automatic nailing machine; 42. Nail gun cylinder; 43. Support column; 5. Internal support type corner protector transfer mechanism; 51. Internal support type suction cup assembly; 511. Genuine 512. Empty suction cup; 513. Support plate; 514. Suction cup clearance hole; 515. Nail gun clearance hole; 516. Spring; 517. Guide tube; 518. Fixing block; 52. Suction cup horizontal movement assembly; 521. Rack; 522. Hobbit fixing ring; 523. Gear; 524. Horizontal motor; 53. Servo push rod; 54. Suction cup rotary table; 6. Corner protection storage mechanism; 61. U-shaped block; 62. Side limiting plate; 63. Corner protection pressure plate; 64. Corner protection cylinder; 65. Corner protection support platform. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0030] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0031] In some embodiments, please refer to the accompanying drawings. Figure 1 and Figure 2 A continuous automatic corner protector device includes a box centering clamping and rotating support mechanism 3, an automatic nailing mechanism 4, an inner support corner protector transfer mechanism 5, and a corner protector storage mechanism 6. The two automatic nailing mechanisms 4 are respectively located on the left and rear sides of the box centering clamping and rotating support mechanism 3. The two automatic nailing mechanisms 4 cooperate to nail the two adjacent sides of one inner corner of the packaging box 1. The inner support corner protector transfer mechanism 5 is located on the right side of the box centering clamping and rotating support mechanism 3. The corner protector storage mechanism 6 is located on the rear side of the inner support corner protector transfer mechanism 5. The inner support corner protector transfer mechanism 5 is used to transfer the paper corner protector 2 from the corner protector storage mechanism 6 to the inner corner of the packaging box 1 and press it tightly.

[0032] The box centering clamping and rotating support mechanism 3 includes a box support platform 31, a centering clamping component 32, and a box rotating platform 33. The rotating surface of the box rotating platform 33 is connected to the lower end of the centering clamping component 32. The box rotating platform 33 is used to rotate the packaging box 1. The centering clamping component 32 is connected to the lower end of the box support platform 31. The centering clamping component 32 is used to center and clamp the packaging box 1. The box support platform 31 is used to support the packaging box 1. The box rotating platform 33 uses mature technology in this field, which will not be described in detail here.

[0033] In this utility model, the packaging box 1 is placed on the box support platform 31, the centering clamping assembly 32 is activated to center and clamp the packaging box 1, the inner support corner protector transfer mechanism 5 transfers the paper corner protectors 2 from the corner protector storage mechanism 6 to the inner corner of the packaging box 1 and presses them tightly, the automatic nailing mechanism 4 nails the two adjacent sides of one inner corner of the packaging box 1, the position pointed to by the two nailing mechanisms is defined as the working position, after the paper corner protectors 2 are fixed, the inner support corner protector transfer mechanism 5 is reset, the box rotating table 33 is activated to drive the packaging box 1 to rotate synchronously, so that the inner corner of the packaging box 1 without corner protectors is rotated to the working position, and the above process is repeated until all four inner corners of the packaging box 1 are equipped with paper corner protectors 2.

[0034] In this utility model, the inner support corner protector transfer mechanism 5 and the automatic nailing mechanism 4 work together to install a corner protector on one inner corner of the packaging box 1. The box body rotating table 33 drives the packaging box 1 to automatically install corner protectors on all inner corners of the packaging box 1, achieving precise installation of corner protectors, high production efficiency, and meeting the need for continuous installation of corner protectors on batch packaging boxes 1.

[0035] Please refer to the accompanying drawings in the instruction manual. Figures 3-6 The centering clamping assembly 32 includes a centering clamping fixing assembly and a centering clamping driving assembly. The centering clamping fixing assembly is provided in four sets and is evenly installed in a circular array at equal intervals on the box support platform 31. The centering clamping driving assembly is installed on the rotating table surface of the box rotating table 33 to drive the four sets of centering clamping fixing assemblies to move synchronously.

[0036] The centering clamping and fixing assembly includes a clamping plate 321, a slider 322 and a connecting rod 324. A radial groove 323 is formed on the box support platform 31. The slider 322 is slidably connected to the groove 323. The lower end of the slider 322 is rotatably connected to one end of the connecting rod 324. The upper end of the slider 322 is fixedly connected to the clamping plate 321. The clamping plate 321 clamps the side of the packaging box 1.

[0037] The centering clamping drive assembly includes a synchronous rotating block 325 and a central motor 326. The synchronous rotating block 325 is rotatably connected to the end of the connecting rod 324 away from the slider 322. The synchronous rotating block 325 is rotatably connected to the box support platform 31. The lower end of the central motor 326 is fixedly connected to the rotating surface of the box rotating platform 33. The output end of the central motor 326 is fixedly connected to the synchronous rotating block 325.

[0038] In this utility model, the starting center motor 326 drives the synchronous rotating block 325 to rotate, pulling all the connecting rods 324, thereby causing the slider 322 to move towards the packaging box 1 under the limiting action of the slide groove 323, which in turn drives the clamping plate 321 to move, so that the clamping plate 321 can achieve centering clamping of the packaging box 1.

[0039] In this utility model, the clamping plate 321 centers and clamps the packaging box 1, so that the packaging box 1 will not be displaced during the corner protection installation process, thereby ensuring the continuity of the corner protection installation.

[0040] Please refer to the accompanying drawings in the instruction manual. Figure 2 The automatic nailing mechanism 4 includes an automatic nailing machine 41, a nail gun cylinder 42, and a support column 43. The upper end of the support column 43 is fixedly connected to the nail gun cylinder 42, and the output end of the nail gun cylinder 42 is fixedly connected to the automatic nailing machine 41. The automatic nailing machine 41 uses mature technologies in this field, which will not be described in detail here.

[0041] Please refer to the accompanying drawings in the instruction manual. Figure 3 The internal support corner protector material transfer mechanism 5 includes an internal support suction cup assembly 51, a suction cup horizontal movement assembly 52, a servo push rod 53, and a suction cup rotary table 54. The rotating surface of the suction cup rotary table 54 is fixedly connected to the servo push rod 53. The output end of the servo push rod 53 is connected to the suction cup horizontal movement assembly 52. ​​The suction cup horizontal movement assembly 52 is connected to the internal support suction cup assembly 51. The suction cup rotary table 54 uses mature technology in this field, which will not be described in detail here.

[0042] Please refer to the accompanying drawings in the instruction manual. Figure 3 , Figure 4 and Figure 6 The suction cup horizontal movement assembly 52 includes a rack 521, a loop-shaped fixing ring 522, a gear 523, and a horizontal motor 524. The loop-shaped fixing ring 522 is fixedly connected to the output end of the servo push rod 53. The loop-shaped fixing ring 522 is slidably connected to the rack 521. The loop-shaped fixing ring 522 is rotatably connected to the gear 523. The loop-shaped fixing ring 522 is fixedly connected to the horizontal motor 524. The gear 523 is meshed with the rack 521. The output end of the horizontal motor 524 is fixedly connected to the gear 523.

[0043] Please refer to the accompanying drawings in the instruction manual. Figure 7 and Figure 8The internal support suction cup assembly 51 includes a vacuum suction cup 511, a support plate 512, a spring 515, a guide tube 516, and a fixing block 517. The support plate 512 is fixedly connected to the rack 521. The two support plates 512 are symmetrically distributed on the left and right sides of the rack 521. Two suction cup clearance holes 513 and two nail gun clearance holes 514 are opened on the support plate 512. The support plate 512 is fixedly connected to the fixing block 517. The fixing block 517 is limited and slidably connected to the guide tube 516. The two ends of the spring 515 are fixedly connected to the fixing block 517 and the vacuum suction cup 511 respectively. The vacuum suction cup 511 is fixedly connected to the guide tube 516.

[0044] In this utility model, the suction cup rotary table 54 drives the servo push rod 53 to rotate, thereby the servo push rod 53 drives the suction cup horizontal moving component 52 to rotate, which in turn drives the vacuum suction cup 511 to rotate. The servo push rod 53 controls the vacuum suction cup 511 to move vertically. The horizontal motor 524 starts and drives the gear 523 to rotate, thereby causing the rack 521 to move horizontally under the restriction of the loop fixing ring 522, thereby controlling the vacuum suction cup 511 to move horizontally.

[0045] Vacuum suction cup 511 picks up and holds the paper corner protector 2 in corner protector storage mechanism 6 until the paper corner protector 2 is in contact with the inner corner of packaging box 1. At this time, vacuum suction cup 511 moves away from the inner corner from suction cup clearance hole 513 under the action of spring 515, while guide tube 516, fixing block 517 and support plate 512 remain stationary. Support plate 512 presses the paper corner protector 2 outward. Nail gun cylinder 42 starts and pushes automatic nailing machine 41 to move closer to packaging box 1. When automatic nailing machine 41 contacts packaging box 1, automatic nailing machine 41 nails in nail gun clearance hole 514. After the corner protector of one inner corner is installed, nail gun cylinder 42 drives automatic nailing machine 41 to reset. Box rotation table 33 rotates to move the inner corner of packaging box 1 without corner protector to the working position. Vacuum suction cup 511 picks up new paper corner protector 2 and moves it to the inner corner. The above process is repeated until paper corner protectors 2 are installed on all four inner corners of packaging box 1.

[0046] In this invention, the support plate 512 can press the paper corner protector 2 to be installed, so that the automatic nailing machine 41 can perform nailing operations, thus ensuring the automation of corner protector installation.

[0047] Please refer to the accompanying drawings in the instruction manual. Figure 6 and Figure 7The corner protector storage mechanism 6 includes a U-shaped block 61, side limiting plates 62, corner protector pressure plates 63, corner protector cylinders 64, and corner protector support platforms 65. The upper end of the corner protector support platform 65 is fixedly connected to the U-shaped block 61. Paper corner protectors 2 are stored in the U-shaped block 61. Two side limiting plates 62 are fixedly connected to the front end of the U-shaped block 61. The side limiting plates 62 are tilted outward at a certain angle to prevent the paper corner protectors 2 from sliding out of the U-shaped block 61. The U-shaped block 61 is fixedly connected to the corner protector cylinder 64. The output end of the corner protector cylinder 64 is fixedly connected to the corner protector pressure plates 63. The corner protector pressure plates 63 are used to press the paper corner protectors 2.

[0048] In this utility model, the corner protector cylinder 64 is activated to drive the corner protector pressure plate 63 to move towards the inner support suction cup assembly 51. The paper corner protectors 2 stored in the U-shaped block 61 will not slide out under the support of the side limiting plate 62. When the vacuum suction cup 511 adsorbs and transfers a paper corner protector 2, the new paper corner protector 2 will be pushed to the outermost side of the U-shaped block 61.

[0049] In this invention, the side limiting plate 62 and the corner protector pressure plate 63 work together to allow the paper corner protectors 2 stored in the U-shaped block 61 to be adsorbed and transferred by the nearby vacuum suction cup 511 at any time, thereby ensuring the automation of the corner protector installation process and thus ensuring the speed and quality of corner protector installation.

[0050] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A continuous automatic corner protection device, comprising a box-body centering clamping and rotating support mechanism (3), characterized in that: It also includes an automatic nailing mechanism (4), an internal support corner protector transfer mechanism (5), and a corner protector storage mechanism (6). The two automatic nailing mechanisms (4) are respectively located on the left and rear sides of the box centering clamping and rotating support mechanism (3). The two automatic nailing mechanisms (4) work together to nail the two adjacent sides of one inner corner of the packaging box (1). The internal support corner protector transfer mechanism (5) is located on the right side of the box centering clamping and rotating support mechanism (3). The corner protector storage mechanism (6) is located on the rear side of the internal support corner protector transfer mechanism (5). The internal support corner protector transfer mechanism (5) is used to transfer the paper corner protectors (2). The corner protector is transferred from the corner protection storage mechanism (6) to the inner corner of the packaging box (1) and pressed. The box body centering clamping rotation support mechanism (3) includes a box body support platform (31), a centering clamping component (32) and a box body rotating platform (33). The rotating surface of the box body rotating platform (33) is connected to the lower end of the centering clamping component (32). The box body rotating platform (33) is used to rotate the packaging box (1). The centering clamping component (32) is connected to the lower end of the box body support platform (31). The centering clamping component (32) is used to center and clamp the packaging box (1). The box body support platform (31) is used to support the packaging box (1).

2. The continuous automatic corner protection device according to claim 1, characterized in that, The centering clamping assembly (32) includes a centering clamping fixing assembly and a centering clamping driving assembly. The centering clamping fixing assembly is provided in four sets and is evenly installed on the box support platform (31) in a circular array. The centering clamping driving assembly is installed on the rotating table surface of the box rotating table (33) to drive the four sets of centering clamping fixing assemblies to move synchronously.

3. The continuous automatic corner protection device according to claim 2, characterized in that, The centering clamping and fixing assembly includes a clamping plate (321), a slider (322), and a connecting rod (324). A groove (323) is radially opened on the box support platform (31). The slider (322) is slidably connected to the groove (323). The lower end of the slider (322) is rotatably connected to one end of the connecting rod (324). The upper end of the slider (322) is fixedly connected to the clamping plate (321). The clamping plate (321) clamps the side of the packaging box (1).

4. The continuous automatic corner protection device according to claim 2, characterized in that, The centering clamping drive assembly includes a synchronous rotating block (325) and a central motor (326). The synchronous rotating block (325) is rotatably connected to the end of the connecting rod (324) away from the slider (322). The synchronous rotating block (325) is rotatably connected to the box support platform (31). The lower end of the central motor (326) is fixedly connected to the rotating surface of the box rotating platform (33). The output end of the central motor (326) is fixedly connected to the synchronous rotating block (325).

5. The continuous automatic corner protection device according to claim 1, characterized in that, The automatic nailing mechanism (4) includes an automatic nailing machine (41), a nail gun cylinder (42) and a support column (43). The upper end of the support column (43) is fixedly connected to the nail gun cylinder (42), and the output end of the nail gun cylinder (42) is fixedly connected to the automatic nailing machine (41).

6. The continuous automatic corner protection device according to claim 1, characterized in that, The internal support corner protection material transfer mechanism (5) includes an internal support suction cup assembly (51), a suction cup horizontal movement assembly (52), a servo push rod (53) and a suction cup rotary table (54). The rotary table surface of the suction cup rotary table (54) is fixedly connected to the servo push rod (53). The output end of the servo push rod (53) is connected to the suction cup horizontal movement assembly (52). The suction cup horizontal movement assembly (52) is connected to the internal support suction cup assembly (51).

7. The continuous automatic corner protection device according to claim 6, characterized in that, The suction cup horizontal movement assembly (52) includes a rack (521), a loop retaining ring (522), a gear (523), and a horizontal motor (524). The loop retaining ring (522) is fixedly connected to the output end of the servo push rod (53). The loop retaining ring (522) is limited and slidably connected to the rack (521). The loop retaining ring (522) is rotatably connected to the gear (523). The loop retaining ring (522) is fixedly connected to the horizontal motor (524). The gear (523) is meshed with the rack (521). The output end of the horizontal motor (524) is fixedly connected to the gear (523).

8. The continuous automatic corner protection device according to claim 7, characterized in that, The internal support suction cup assembly (51) includes a vacuum suction cup (511), a support plate (512), a spring (515), a guide tube (516), and a fixing block (517). The support plate (512) is fixedly connected to the rack (521). The two support plates (512) are symmetrically distributed on the left and right sides of the rack (521). Two suction cup clearance holes (513) and two nail gun clearance holes (514) are opened on the support plate (512). The support plate (512) is fixedly connected to the fixing block (517). The fixing block (517) is limited and slidably connected to the guide tube (516). The two ends of the spring (515) are fixedly connected to the fixing block (517) and the vacuum suction cup (511) respectively. The vacuum suction cup (511) is fixedly connected to the guide tube (516).

9. The continuous automatic corner protection device according to claim 1, characterized in that, The corner protector storage mechanism (6) includes a U-shaped block (61), a side limiting plate (62), a corner protector pressure plate (63), a corner protector cylinder (64), and a corner protector support platform (65). The upper end of the corner protector support platform (65) is fixedly connected to the U-shaped block (61). The U-shaped block (61) stores paper corner protectors (2). Two side limiting plates (62) are fixedly connected to the front end of the U-shaped block (61). The side limiting plates (62) are tilted outward at a certain angle to prevent the paper corner protectors (2) from sliding out of the U-shaped block (61). The U-shaped block (61) is fixedly connected to the corner protector cylinder (64). The output end of the corner protector cylinder (64) is fixedly connected to the corner protector pressure plate (63). The corner protector pressure plate (63) is used to press the paper corner protectors (2).

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