Punching device for white board packaging box

Abstract

The utility model relates to the technical field of white board packaging box processing, and provides a punching device for a white board packaging box, which comprises a punching assembly and a lifting assembly. By arranging the clamping structure, a paperboard is placed at the top end of the workbench, one end of the paperboard abuts against a positioning plate, a first electric push rod is started, the first electric push rod drives a moving plate to move, the moved moving plate drives a first sliding rod to move in a supporting plate, and a second electric push rod is started; a second electric push rod drives a pressing plate to move, the pressing plate drives a second sliding rod to move in a moving plate, meanwhile, the pressing plate drives a rubber strip to be pressed to the top end of a paperboard, then the paperboard is fixed to the top end of the workbench, under the action of the rubber strip, the effect of protecting the paperboard is achieved, and the function that the device can conveniently fix the paperboards of different sizes is achieved; and therefore, the convenience of the tapping device for the white board packaging box during use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of whiteboard paper packaging box processing, in particular to a hole-punching device for a whiteboard paper packaging box. Background Art

[0002] White cardboard is a white cardboard with two to three layers. It is an advanced packaging cardboard, mainly used for sales packaging. It has the advantages of no linting, no powdering, and good toughness. While protecting the product, the paper box packaging uses its exquisite shape to promote and beautify the product, win consumers, and improve the competitiveness of the product. During the processing of white paper packaging boxes, holes need to be opened in them, so a hole-opening device for white paper packaging boxes will be used.

[0003] The existing hole-punching device for white paper packaging boxes is inconvenient to use because it is not convenient to quickly clamp and fix paperboards of different sizes, making it extremely inconvenient to use. Utility Model Content

[0004] The utility model aims to provide a hole-opening device for a whiteboard paper packaging box, so as to solve the defect that the existing hole-opening device for a whiteboard paper packaging box is inconvenient for quick clamping.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a hole-punching device for a white paper packaging box, comprising a hole-punching component and a lifting component;

[0006] The opening assembly includes a base, a crossbeam, a workbench, a vertical plate, a first hydraulic telescopic rod and a fixed frame. A lifting assembly is provided on one side of the top of the base, a moving assembly is provided on one side of the top of the base, a vertical plate is fixed on one side of the base, a first hydraulic telescopic rod passes through the top of the vertical plate, and a workbench is fixed on the top of the moving assembly;

[0007] A clamping structure is provided on one side of the top of the workbench, and the clamping structure includes a support plate, a first electric push rod, a first sliding rod, a movable plate, a second electric push rod, a second sliding rod and a pressure plate, the support plate is fixed to one side of the top of the workbench, the first electric push rod is passed through the interior of the support plate, one end of the first electric push rod is fixed to the movable plate, the first sliding rod is passed through the interior of the support plates on both sides of the first electric push rod, the second electric push rod is passed through one side of the top of the movable plate, the pressure plate is fixed to the bottom end of the second electric push rod, and the second sliding rod is passed through the interior of the movable plates on both sides of the second electric push rod;

[0008] A crossbeam is fixed to the top of the lifting assembly, an adjustment structure is provided on one side of the bottom of the crossbeam, a fixing frame is fixed to the bottom of the adjustment structure, a micro motor is installed at the bottom of the fixing frame, the output end of the micro motor extends to the bottom of the fixing frame and is fixed with a drill rod, and pressing structures are provided on both sides of the bottom of the fixing frame.

[0009] When using the device, by providing a clamping structure, the device can easily fix cardboards of different sizes, thereby improving the convenience of using the hole-opening device for a white paper packaging box; by providing an adjustment structure, the device can easily adjust the position of the hole, thereby improving the working efficiency of the hole-opening device for a white paper packaging box when in use; by providing a pressing structure, the device can easily strengthen the fixation of the cardboard, thereby improving the applicability of the hole-opening device for a white paper packaging box when in use.

[0010] Preferably, a positioning plate is fixed to a side of the top of the workbench away from the clamping structure, and one end of the first hydraulic telescopic rod is fixedly connected to one side of the workbench.

[0011] Preferably, the lifting assembly includes a second hydraulic telescopic rod, a guide rod and a guide cylinder. The second hydraulic telescopic rod is fixed to the top of the base. A guide cylinder is fixed to the top of the base on one side of the second hydraulic telescopic rod. The guide cylinder is slidably connected to the guide rod inside.

[0012] Preferably, the top end of the second hydraulic telescopic rod is fixedly connected to the bottom end of the crossbeam, and the top end of the guide rod extends outside the guide cylinder and is fixedly connected to the bottom end of the crossbeam. When the second hydraulic telescopic rod is activated, it drives the crossbeam up and down, and the crossbeam drives the guide rod to move within the guide cylinder. Under the action of the guide cylinder, the stability of the crossbeam during movement is enhanced.

[0013] Preferably, one end of the first slide bar is fixedly connected to one side of the movable plate, and the bottom end of the second slide bar is fixedly connected to the top end of the pressure plate, and the bottom end of the pressure plate is evenly provided with a rubber strip. A cardboard is placed on the top end of the workbench so that one end of the cardboard contacts the positioning plate. The first electric push rod is activated, and the first electric push rod drives the movable plate to move. The moved movable plate drives the first slide bar to move inside the support plate. The second electric push rod is activated, and the second electric push rod drives the pressure plate to move. The pressure plate drives the second slide bar to move inside the movable plate. At the same time, the pressure plate drives the rubber strip to press the top end of the cardboard, thereby fixing the cardboard to the top end of the workbench. Under the action of the rubber strip, the cardboard is protected.

[0014] Preferably, the adjustment structure includes a built-in cavity, a guide block, a movable seat, a servo motor, and a threaded rod. The built-in cavity is provided on one side of the bottom of the crossbeam. A threaded rod is provided inside the built-in cavity. A servo motor is mounted on the outer wall of the crossbeam at one end of the threaded rod. The outer side of the threaded rod is threadedly connected to the movable seat, and the top of the movable seat is fixed with a guide block. When the servo motor is started, the servo motor drives the threaded rod to rotate inside the built-in cavity, the threaded rod drives the movable seat to move, and the movable seat drives the guide block to move inside the guide groove. Under the action of the guide block, the movable seat is prevented from rotating along with the threaded rod.

[0015] Preferably, a guide groove is provided within the crossbeam above the guide block. The bottom end of the movable base extends outside the crossbeam and is fixedly connected to the top of the fixed frame. One end of the threaded rod extends outside the crossbeam and is fixedly connected to the output end of the servo motor. The movable base drives the fixed frame to move, activating the micromotor, which in turn drives the drill rod to rotate, causing the drill rod to drill a hole in the cardboard. The moved fixed frame then drives the drill rod back and forth, facilitating forward and backward adjustment of the hole position.

[0016] Preferably, the movable assembly includes a movable slot, a movable block, and a fixed rod. The movable slot is provided on one side of the top of the base, the movable block is provided within the movable slot, and the fixed rods extend through both sides of the movable block. When the first hydraulic telescopic rod is activated, the first hydraulic telescopic rod drives the workbench to move, and the workbench drives the movable block to move outside the fixed rod.

[0017] Preferably, both ends of the fixed rod are fixedly connected to the inner wall of the base, and the top end of the movable block extends to the outside of the base and is fixedly connected to the bottom end of the workbench. The fixed rod enhances the stability of the workbench during movement, and the workbench drives the cardboard to move along the bottom end of the drill rod, facilitating adjustment of the positions of the left and right openings in the cardboard.

[0018] Preferably, the pressing structure includes a fixed plate, a movable rod, a return spring, a fixed seat, a ball, and a limit plate. The fixed plate is fixed to both sides of the bottom of the fixed frame. The fixed plate is penetrated by a movable rod inside. The top of the movable rod is fixed to the limit plate. The bottom of the movable rod is fixed to the fixed seat. The bottom of the fixed seat is rotatably connected to the ball. The outside of the movable rod at the bottom of the fixed plate is sleeved with a return spring. When the fixed frame drives the fixed plate to move downward, the bottom end of the ball contacts the top end of the cardboard. As the fixed frame drives the fixed plate to move downward, the movable rod moves inside the fixed plate. At this time, the bottom end of the ball always contacts the top end of the cardboard to prevent the cardboard from displacement and at the same time strengthen the fixing of the cardboard. When the fixed frame drives the fixed plate to move left and right, under the action of the ball, the fixed seat drives the ball to move on the top end of the cardboard. Under the elastic action of the return spring, the fixed seat is reset. Under the action of the limit plate, the movable rod and the fixed plate are prevented from separating.

[0019] The utility model provides a hole-punching device for a white paper packaging box, which has the following advantages:

[0020] By providing a clamping structure, a cardboard is placed on the top of the workbench so that one end of the cardboard contacts the positioning plate, and the first electric push rod is started, the first electric push rod drives the movable plate to move, and the movable plate after moving drives the first slide bar to move inside the supporting plate, and the second electric push rod is started, the second electric push rod drives the pressing plate to move, and the pressing plate drives the second slide bar to move inside the movable plate, and at the same time, the pressing plate drives the rubber strip to press on the top of the cardboard, thereby fixing the cardboard on the top of the workbench. Under the action of the rubber strip, the cardboard is protected, and the function of the device to fix cardboards of different sizes is realized, thereby improving the convenience of the hole-opening device for white paper packaging boxes when in use;

[0021] By providing an adjustment structure, starting the servo motor, the servo motor drives the threaded rod to rotate inside the built-in cavity, the threaded rod drives the moving seat to move, the moving seat drives the guide block to move inside the guide groove, under the action of the guide block, the moving seat is prevented from rotating along with the threaded rod, the moving seat drives the fixed frame to move, starting the micro motor, the micro motor drives the drill rod to rotate, so that the drill rod makes a hole in the cardboard, and the fixed frame after movement drives the drill rod to move back and forth, which is convenient for adjusting the hole position, realizing the function of facilitating the adjustment of the hole position of the device, thereby improving the working efficiency of the hole-making device for white paper packaging boxes when in use;

[0022] By providing a pressing structure, when the fixed frame drives the fixed plate to move downward, the bottom end of the ball contacts the top end of the cardboard. As the fixed frame drives the fixed plate to move downward, the movable rod moves inside the fixed plate. At this time, the bottom end of the ball always contacts the top end of the cardboard to prevent the cardboard from being displaced, and at the same time plays a role in strengthening the fixation of the cardboard. When the fixed frame drives the fixed plate to move left and right, under the action of the ball, the fixed seat drives the ball to move on the top end of the cardboard, and under the elastic force of the reset spring, the fixed seat is driven to reset. Under the action of the limit plate, the movable rod and the fixed plate are prevented from being separated, thereby realizing the function of the device to strengthen the fixation of the cardboard, thereby improving the applicability of the hole-opening device for white paper packaging boxes when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0024] Figure 2 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0025] Figure 3 It is a side cross-sectional structural schematic diagram of the utility model;

[0026] Figure 4 This is a schematic side sectional structural diagram of the lifting assembly of the present utility model;

[0027] Figure 5 This is a three-dimensional structural diagram of the clamping structure of the utility model;

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the pressing structure cross section of the present invention.

[0029] Explanation of reference numerals in the figure: 1. opening assembly; 101. base; 102. crossbeam; 103. workbench; 104. vertical plate; 105. first hydraulic telescopic rod; 106. fixed frame; 2. lifting assembly; 201. second hydraulic telescopic rod; 202. guide rod; 203. guide cylinder; 3. clamping structure; 301. support plate; 302. first electric push rod; 303. first sliding rod; 304. moving plate; 305. second electric push rod; 306 , second slide bar; 307, pressure plate; 4, adjustment structure; 401, built-in cavity; 402, guide block; 403, movable seat; 404, servo motor; 405, threaded rod; 5, micro motor; 6, drill rod; 7, moving assembly; 701, movable groove; 702, movable block; 703, fixed rod; 8, pressing structure; 801, fixed plate; 802, movable rod; 803, reset spring; 804, fixed seat; 805, ball; 806, limit plate. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] See also Figures 1-6The utility model provides a hole-punching device for a white paper packaging box, comprising a hole-punching component 1 and a lifting component 2. The hole-punching component 1 comprises a base 101, a crossbeam 102, a workbench 103, a vertical plate 104, a first hydraulic telescopic rod 105 and a fixed frame 106. A lifting component 2 is provided on one side of the top of the base 101, a moving component 7 is provided on one side of the top of the base 101, a vertical plate 104 is fixed on one side of the base 101, a first hydraulic telescopic rod 105 passes through the top of the vertical plate 104, a workbench 103 is fixed on the top of the moving component 7, a clamping structure 3 is provided on one side of the top of the workbench 103, and the clamping structure 3 comprises a support plate 301, a first The electric push rod 302, the first slide rod 303, the movable plate 304, the second electric push rod 305, the second slide rod 306 and the pressure plate 307, the support plate 301 is fixed to one side of the top of the workbench 103, the interior of the support plate 301 is penetrated by the first electric push rod 302, one end of the first electric push rod 302 is fixed to the movable plate 304, the interior of the support plates 301 on both sides of the first electric push rod 302 is penetrated by the first slide rod 303, one side of the top of the movable plate 304 is penetrated by the second electric push rod 305, the bottom end of the second electric push rod 305 is fixed to the pressure plate 307, the interior of the movable plates 304 on both sides of the second electric push rod 305 is penetrated by the second slide rod 30 6. One end of the first slide bar 303 is fixedly connected to one side of the movable plate 304, the bottom end of the second slide bar 306 is fixedly connected to the top of the pressure plate 307, and the bottom end of the pressure plate 307 is evenly provided with a rubber strip. A positioning plate is fixed to the side of the top of the workbench 103 away from the clamping structure 3. One end of the first hydraulic telescopic rod 105 is fixedly connected to one side of the workbench 103. The lifting assembly 2 includes a second hydraulic telescopic rod 201, a guide rod 202 and a guide cylinder 203. The second hydraulic telescopic rod 201 is fixed to the top of the base 101. A guide cylinder 203 is fixed to the top of the base 101 on one side of the second hydraulic telescopic rod 201. The inner sliding connection of the guide cylinder 203 is The guide rod 202 and the top of the second hydraulic telescopic rod 201 are fixedly connected to the bottom end of the beam 102, the top end of the guide rod 202 extends to the outside of the guide cylinder 203 and is fixedly connected to the bottom end of the beam 102, the moving component 7 includes a movable groove 701, a movable block 702 and a fixed rod 703, the movable groove 701 is arranged on one side of the top of the base 101, and a movable block 702 is arranged inside the movable groove 701, and fixed rods 703 are passed through both sides of the inside of the movable block 702, and both ends of the fixed rod 703 are fixedly connected to the inner wall of the base 101, and the top end of the movable block 702 extends to the outside of the base 101 and is fixedly connected to the bottom end of the workbench 103.

[0032] Reference Figure 1 and Figure 2-Figure 5As shown, a cardboard is placed on the top of the workbench 103 so that one end of the cardboard contacts the positioning plate, and the first electric push rod 302 is started. The first electric push rod 302 drives the movable plate 304 to move. The movable plate 304 drives the first slide bar 303 to move inside the support plate 301. The second electric push rod 305 is started. The second electric push rod 305 drives the pressing plate 307 to move. The pressing plate 307 drives the second slide bar 306 to move inside the movable plate 304. At the same time, the pressing plate 307 drives the rubber strip to press on the top of the cardboard, thereby fixing the cardboard on the top of the workbench 103. Under the action of the rubber strip, the cardboard is protected. The second electric push rod 305 is started. Second hydraulic telescopic rod 201, the second hydraulic telescopic rod 201 drives the crossbeam 102 to move up and down, and the crossbeam 102 drives the guide rod 202 to move inside the guide cylinder 203. Under the action of the guide cylinder 203, the stability of the crossbeam 102 during movement is enhanced. The first hydraulic telescopic rod 105 is started, and the first hydraulic telescopic rod 105 drives the workbench 103 to move. The workbench 103 drives the movable block 702 to move outside the fixed rod 703. Under the action of the fixed rod 703, the stability of the workbench 103 during movement is enhanced. The workbench 103 drives the cardboard to move at the bottom end of the drill rod 6, which is convenient for adjusting the positions of the left and right openings of the cardboard.

[0033] A crossbeam 102 is fixed to the top of the lifting component 2, and an adjustment structure 4 is provided on one side of the bottom of the crossbeam 102. The adjustment structure 4 includes a built-in cavity 401, a guide block 402, a movable seat 403, a servo motor 404 and a threaded rod 405. The built-in cavity 401 is provided on one side of the bottom of the crossbeam 102, and a threaded rod 405 is provided inside the built-in cavity 401. The servo motor 404 is installed on the outer wall of the crossbeam 102 at one end of the threaded rod 405. The outer side of the threaded rod 405 is threadedly connected to the movable seat 403. A guide block 402 is fixed to the top of the movable seat 403, and a guide groove is provided inside the crossbeam 102 above the guide block 402. The bottom end of the movable seat 403 extends to the outside of the crossbeam 102 and is fixedly connected to the top of the fixed frame 106. One end of the threaded rod 405 extends to the outside of the crossbeam 102 and is fixedly connected to the output end of the servo motor 404.

[0034] Reference Figure 2 and Figure 3 As shown, the servo motor 404 is started, and the servo motor 404 drives the threaded rod 405 to rotate inside the built-in cavity 401. The threaded rod 405 drives the movable seat 403 to move, and the movable seat 403 drives the guide block 402 to move inside the guide groove. Under the action of the guide block 402, the movable seat 403 is prevented from rotating along with the threaded rod 405. The movable seat 403 drives the fixed frame 106 to move, and the micro motor 5 is started. The micro motor 5 drives the drill rod 6 to rotate, so that the drill rod 6 makes a hole in the cardboard. The fixed frame 106 after movement drives the drill rod 6 to move back and forth, which is convenient for adjusting the hole position back and forth.

[0035] A fixed frame 106 is fixed to the bottom end of the adjusting structure 4, and a micro motor 5 is installed at the bottom of the fixed frame 106. The output end of the micro motor 5 extends to the bottom of the fixed frame 106 and is fixed with a drill rod 6. Pressing structures 8 are provided on both sides of the bottom of the fixed frame 106. The pressing structure 8 includes a fixed plate 801, a movable rod 802, a return spring 803, a fixed seat 804, a ball 805 and a limit plate 806. The fixed plate 801 is fixed to both sides of the bottom of the fixed frame 106. The inside of the fixed plate 801 is penetrated by the movable rod 802. The top of the movable rod 802 is fixed with a limit plate 806. The bottom end of the movable rod 802 is fixed with a fixed seat 804. The bottom of the fixed seat 804 is rotatably connected with a ball 805. The outside of the movable rod 802 at the bottom end of the fixed plate 801 is sleeved with a return spring 803.

[0036] Reference Figure 3 and Figure 6 As shown, when the fixed frame 106 drives the fixed plate 801 to move downward, the bottom end of the ball 805 conflicts with the top end of the cardboard. As the fixed frame 106 drives the fixed plate 801 to move downward, the movable rod 802 moves inside the fixed plate 801. At this time, the bottom end of the ball 805 always conflicts with the top end of the cardboard to prevent the cardboard from being displaced, and at the same time plays a role in strengthening the fixing of the cardboard. When the fixed frame 106 drives the fixed plate 801 to move left and right, under the action of the ball 805, the fixed seat 804 drives the ball 805 to move on the top end of the cardboard. Under the elastic force of the reset spring 803, the fixed seat 804 is driven to reset. Under the action of the limit plate 806, the movable rod 802 and the fixed plate 801 are prevented from separating.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hole-punching device for a whiteboard packaging box, comprising a hole-punching component (1) and a lifting component (2); Its characteristics are: The opening assembly (1) comprises a base (101), a crossbeam (102), a workbench (103), a vertical plate (104), a first hydraulic telescopic rod (105) and a fixed frame (106); a lifting assembly (2) is provided on one side of the top of the base (101); a moving assembly (7) is provided on one side of the top of the base (101); a vertical plate (104) is fixed on one side of the base (101); a first hydraulic telescopic rod (105) passes through the top of the vertical plate (104); and a workbench (103) is fixed on the top of the moving assembly (7); A clamping structure (3) is provided on one side of the top of the workbench (103), and the clamping structure (3) includes a support plate (301), a first electric push rod (302), a first slide rod (303), a moving plate (304), a second electric push rod (305), a second slide rod (306) and a pressing plate (307). The support plate (301) is fixed to one side of the top of the workbench (103), and the first electric push rod (302) is passed through the interior of the support plate (301). A movable plate (304) is fixed to one end of the first electric push rod (302), first slide bars (303) are passed through the interiors of the support plates (301) on both sides of the first electric push rod (302), a second electric push rod (305) is passed through one side of the top of the movable plate (304), a pressing plate (307) is fixed to the bottom end of the second electric push rod (305), and second slide bars (306) are passed through the interiors of the movable plates (304) on both sides of the second electric push rod (305); A crossbeam (102) is fixed to the top of the lifting assembly (2), an adjustment structure (4) is provided on one side of the bottom of the crossbeam (102), a fixing frame (106) is fixed to the bottom of the adjustment structure (4), a micro motor (5) is installed at the bottom of the fixing frame (106), an output end of the micro motor (5) extends to the bottom of the fixing frame (106) and is fixed with a drill rod (6), and pressing structures (8) are provided on both sides of the bottom of the fixing frame (106).

2. The hole-punching device for a whiteboard packaging box according to claim 1, characterized in that: A positioning plate is fixed to the top of the workbench (103) on a side away from the clamping structure (3), and one end of the first hydraulic telescopic rod (105) is fixedly connected to one side of the workbench (103).

3. The hole-punching device for a whiteboard packaging box according to claim 1, characterized in that: The lifting assembly (2) comprises a second hydraulic telescopic rod (201), a guide rod (202) and a guide cylinder (203); the second hydraulic telescopic rod (201) is fixed to the top of the base (101); a guide cylinder (203) is fixed to the top of the base (101) on one side of the second hydraulic telescopic rod (201); and the guide rod (202) is slidably connected inside the guide cylinder (203).

4. The hole-punching device for a whiteboard packaging box according to claim 3, characterized in that: The top end of the second hydraulic telescopic rod (201) is fixedly connected to the bottom end of the crossbeam (102), and the top end of the guide rod (202) extends to the outside of the guide cylinder (203) and is fixedly connected to the bottom end of the crossbeam (102).

5. The hole-punching device for a whiteboard packaging box according to claim 1, characterized in that: One end of the first slide bar (303) is fixedly connected to one side of the movable plate (304), and the bottom end of the second slide bar (306) is fixedly connected to the top end of the pressing plate (307). The bottom end of the pressing plate (307) is evenly provided with rubber strips.

6. The hole-punching device for a whiteboard packaging box according to claim 1, characterized in that: The regulating structure (4) comprises a built-in cavity (401), a guide block (402), a movable seat (403), a servo motor (404) and a threaded rod (405); the built-in cavity (401) is arranged on one side of the bottom of the crossbeam (102); a threaded rod (405) is arranged inside the built-in cavity (401); a servo motor (404) is mounted on the outer wall of the crossbeam (102) at one end of the threaded rod (405); the outer side of the threaded rod (405) is threadedly connected to the movable seat (403); and the top end of the movable seat (403) is fixed with the guide block (402).

7. The hole-punching device for a whiteboard packaging box according to claim 6, characterized in that: A guide groove is provided inside the cross beam (102) above the guide block (402); the bottom end of the movable seat (403) extends to the outside of the cross beam (102) and is fixedly connected to the top end of the fixed frame (106); one end of the threaded rod (405) extends to the outside of the cross beam (102) and is fixedly connected to the output end of the servo motor (404).

8. The hole-punching device for a whiteboard packaging box according to claim 1, characterized in that: The movable assembly (7) comprises a movable groove (701), a movable block (702) and a fixed rod (703); the movable groove (701) is arranged on one side of the top of the base (101); the movable block (702) is arranged inside the movable groove (701); and the fixed rod (703) penetrates both sides of the movable block (702).

9. The hole-punching device for a whiteboard packaging box according to claim 8, characterized in that: Both ends of the fixed rod (703) are fixedly connected to the inner wall of the base (101), and the top end of the movable block (702) extends to the outside of the base (101) and is fixedly connected to the bottom end of the workbench (103).

10. The hole-punching device for a whiteboard packaging box according to claim 1, characterized in that: The pressing structure (8) comprises a fixed plate (801), a movable rod (802), a return spring (803), a fixed seat (804), a ball (805) and a limit plate (806); the fixed plate (801) is fixed to both sides of the bottom of the fixed frame (106); the movable rod (802) is passed through the interior of the fixed plate (801); the limit plate (806) is fixed to the top of the movable rod (802); the bottom of the movable rod (802) is fixed with a fixed seat (804); the bottom of the fixed seat (804) is rotatably connected to the ball (805); the outside of the movable rod (802) at the bottom end of the fixed plate (801) is sleeved with a return spring (803).

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