Sealing device

Abstract

The utility model relates to the technical field of packaging sealing, and specifically discloses a sealing device, which includes a base, a moving assembly and a smoothing assembly, wherein the moving assembly includes a moving part and a driving part, the moving part is slidably arranged on the base along a first direction, and is used to carry a packaging box; the driving part is arranged on the base, and is transmission-connected with the moving part; the smoothing assembly includes a smoothing part, the smoothing part is movably arranged on the base, and can move simultaneously along a first direction and a second direction, and the smoothing part can press against an adhesive part pasted on the packaging box, and along a third direction, the length of the smoothing part is greater than the width of the adhesive part; the smoothing part is configured to be driven by the moving part and move simultaneously along the first direction and the second direction when the moving part moves along the first direction. The above-mentioned arrangement can avoid wrinkles and offsets of the adhesive part during the bonding process, and ensure that the adhesive part is not prone to warping.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging sealing, in particular to a sealing device. Background Art

[0002] As the name suggests, a packaging box is a box used to package products. It can be classified by material, such as paper boxes, iron boxes, wooden boxes, cloth boxes, leather boxes, acrylic boxes, corrugated packaging boxes, etc. In daily life, packaging boxes, especially paper boxes, need to be sealed at the opening when in use to prevent the products inside from falling out of the opening.

[0003] Since the sealing sticker needs to be bent from the top or bottom surface of the packaging box to the side, the bending process is usually done manually, which causes the sealing sticker to be easily wrinkled and offset during the attachment process. In addition, the manual attachment process is prone to pressure leakage, resulting in the adhesive backing of the sealing sticker not being fully activated, which is prone to warping, thereby affecting the appearance of the packaging box.

[0004] Therefore, it is urgent to study a sealing device to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a sealing device to solve the problems in the prior art that the sealing sticker is prone to wrinkles, deviations and warping.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] Sealing device, comprising:

[0008] Base;

[0009] A mobile component, the mobile component comprising:

[0010] A moving member, slidably disposed on the base along a first direction, and used for carrying a packaging box;

[0011] A driving member, disposed on the base and in transmission connection with the moving member;

[0012] A trowel assembly, the trowel assembly comprising:

[0013] A smoothing piece, the smoothing piece is movably disposed on the base and can move simultaneously along the first direction and the second direction, and the smoothing piece can press against the adhesive piece attached to the packaging box, and along the third direction, the length of the smoothing piece is greater than the width of the adhesive piece;

[0014] The trowel member is configured to be driven by the moving member and move simultaneously in the first direction and the second direction when the moving member moves in the first direction.

[0015] As an optional technical solution for a sealing device, the smoothing assembly also includes a smoothing bracket and a smoothing elastic member, one end of the smoothing bracket is hinged to the base, and the smoothing member is arranged at the other end of the smoothing bracket, and the forward rotation of the smoothing bracket can drive the smoothing member to move simultaneously in the first direction and the second direction, and the smoothing elastic member is arranged between the smoothing bracket and the base, and is used to apply elastic force to the smoothing bracket to make the smoothing bracket rotate in the opposite direction.

[0016] As an optional technical solution for a sealing device, the smoothing bracket is provided with a first hanging portion, the base is provided with a second hanging portion, and the smoothing elastic member is provided between the first hanging portion and the second hanging portion and can generate tension.

[0017] As an optional technical solution for a sealing device, the smoothing assembly also includes a buffer and a smoothing bracket, wherein the smoothing member is arranged on the smoothing bracket, and the forward rotation of the smoothing bracket can drive the smoothing member to move simultaneously along the first direction and the second direction; the buffer is arranged on the base, and the smoothing bracket rotates in the reverse direction and can be stopped by abutting the buffer.

[0018] As an optional technical solution for the sealing device, the smoothing bracket is provided with a columnar first hanging portion, and the smoothing bracket rotates in the opposite direction and stops at the first hanging portion to abut against the buffer member.

[0019] As an optional technical solution for the sealing device, the smoothing member includes a rolling wheel, which is rotatably disposed on the smoothing bracket and can be rollingly matched with the adhesive member.

[0020] As an optional technical solution of the sealing device, the smoothing component also includes a buffer layer, and the buffer layer is wrapped around the outer circumference of the rolling wheel.

[0021] As an optional technical solution of a sealing device, the sealing device further comprises a protective pad, and the protective pad is arranged on the moving part.

[0022] As an optional technical solution of the sealing device, the moving component further includes a limiting member, which is located on the moving member and is used to abut against a side wall of the packaging box.

[0023] As an optional technical solution of the sealing device, the smoothing member is configured to be driven by the moving member and move upward when the moving member moves along the first direction;

[0024] The sealing device further comprises a ballast assembly, wherein the ballast assembly comprises:

[0025] A ballast bracket is slidably arranged on the base along a third direction, and the ballast bracket is provided with a rotation hole;

[0026] A screw rod, the screw rod is threadedly matched with the threaded hole of the base and is rotatably disposed in the rotating hole, the lower end of the screw rod has two stop parts, the outer diameter of the stop parts is larger than the diameter of the rotating hole, and the two stop parts are located at both ends of the rotating hole;

[0027] The ballast wheel is rotatably arranged on the ballast bracket.

[0028] The beneficial effects of the utility model are:

[0029] The utility model provides a sealing device, which comprises a moving component and a smoothing component, wherein the moving component can drive a packaging box to move along a first direction, and a smoothing member in the smoothing component can be driven by the moving member in the moving component to move along the first direction and the second direction, so that an adhesive member on a top wall or a bottom wall of the packaging box is folded over and pasted on a side wall of the packaging box. Since the moving path of the moving member is restricted, the bending and pasting processes of the adhesive member are standardized, so that wrinkles and deviations of the adhesive member during the pasting process can be avoided; since the smoothing member is in contact with the adhesive member, and in the third direction, the length of the smoothing member is greater than the width of the adhesive member, so that pressure leakage can be avoided, thereby ensuring that the adhesive member is not prone to warping. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the structure of the sealing device in the embodiment of the utility model, from a first viewing angle;

[0031] Figure 2 It is a schematic diagram of the structure of the sealing device in the embodiment of the utility model, from a second viewing angle;

[0032] Figure 3 It is a schematic diagram of the structure of the sealing device in the embodiment of the utility model, from the third viewing angle;

[0033] Figure 4 This is a schematic diagram of the internal structure of the sealing device in the embodiment of the utility model, from a first viewing angle;

[0034] Figure 5 for Figure 4 The enlarged view of point A in the middle;

[0035] Figure 6 This is a schematic diagram of the internal structure of the sealing device in the embodiment of the utility model, from a second viewing angle;

[0036] Figure 7 for Figure 6 The enlarged view of point B in the middle;

[0037] Figure 8 It is a schematic diagram of the internal structure of the sealing device in the embodiment of the utility model, the smoothing member is located at the end position, the first viewing angle;

[0038] Fig. 9 It is a schematic diagram of the internal structure of the sealing device in the embodiment of the utility model, the smoothing member is located at the end position, the second viewing angle;

[0039] Fig.10 for Fig. 9 Enlarged view of point C in the middle;

[0040] Fig.11 for Fig.10 Enlarged view of point D in the middle.

[0041] In the figure:

[0042] 1000, packaging box; 1100, lower side wall; 1200, upper side wall; 1300, front side wall; 1400, rear side wall; 2000, sealing sticker; 2100, horizontal part; 2200, vertical part;

[0043] 100, base; 101, support member; 102, connector; 103, protective plate; 110, second hanging part; 120, cantilever rod; 130, slide rail; 140, slider; 150, console; 160, sensor;

[0044] 200, moving assembly; 210, moving part; 220, driving part; 230, protective pad; 240, limiting part; 241, limiting screw; 250, fixing plate;

[0045] 300, smoothing assembly; 310, smoothing member; 311, buffer layer; 320, smoothing bracket; 321, rotating shaft; 322, first hanging part; 330, smoothing elastic member; 340, buffer member;

[0046] 400, ballast assembly; 410, ballast bracket; 420, screw rod; 421, stopper; 430, ballast wheel; 440, buffer sleeve; 450, slide rod. DETAILED DESCRIPTION

[0047] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0048] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0050] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0051] like Figures 1 to 11 As shown, this embodiment provides a sealing device, during the movement of the smoothing member 310, the adhesive member is bent and attached to the side wall of the packaging box 1000 to avoid wrinkles and deviations, and the adhesive member can be fully pressed to avoid the problem of the adhesive member warping due to pressure leakage. The adhesive member can be a sealing sticker 2000 or a tape.

[0052] The packaging box 1000 has an upper side wall 1200 and a lower side wall 1100 that are opposite to each other vertically, a front side wall 1300 and a rear side wall 1400 that are opposite to each other front and back, and a left side wall and a right side wall that are opposite to each other left and right.

[0053] In some embodiments, the sealing device includes a base 100, a moving component 200 and a smoothing component 300, wherein the moving component 200 includes a moving member 210 and a driving member 220, the moving member 210 is slidably arranged on the base 100 along a first direction, and is used to carry the packaging box 1000; the driving member 220 is arranged on the base 100 and is transmission-connected to the moving member 210; the smoothing component 300 includes a smoothing member 310, the smoothing member 310 is movably arranged on the base 100, and can move simultaneously along the first direction and the second direction, and the smoothing member 310 can press against the sealing sticker 2000 pasted on the packaging box 1000, and along the third direction, the length of the smoothing member 310 is greater than the width of the sealing sticker 2000; the smoothing member 310 is configured to be driven by the moving member 210 and move simultaneously along the first direction and the second direction when the moving member 210 moves along the first direction.

[0054] The first direction is the front-to-back direction, the second direction is the up-down direction, and the third direction is the left-to-right direction, wherein the first direction, the second direction and the third direction are perpendicular to each other.

[0055] When in use, first tear off the release film of the sealing sticker 2000, then stick at least part of the sealing sticker 2000 on the lower side wall 1100 of the packaging box 1000, and at least part of it on the front side wall 1300 of the packaging box 1000, then place the packaging box 1000 together with the sealing sticker 2000 on the moving member 210, and the driving member 220 drives the moving member 210 to move forward, driving the packaging box 1000 to move forward, and under the action of the moving member 210, drives the smoothing member 310 to move forward and upward, and when the smoothing member 310 moves upward, During the process, the sealing sticker 2000 located on the lower side of the packaging box 1000 can be driven to bend upwards, and when the movable member 210 continues to move forward, the smoothing member 310 continues to move forward and upwards, and part of the sealing sticker 2000 is adhered to the front side wall 1300 of the packaging box 1000, wherein the bent sealing sticker 2000 includes a horizontal portion 2100 and a vertical portion 2200, the horizontal portion 2100 is attached to the lower side wall 1100 of the packaging box 1000, and the vertical portion 2200 is attached to the front side wall 1300 of the packaging box 1000.

[0056] With the aid of the above-mentioned arrangement, the moving path of the movable member 210 is effectively restricted, so that the bending and pasting process of the sealing sticker 2000 is standardized, thereby preventing the sealing sticker 2000 from wrinkling and deflecting during the bonding process; since the smoothing member 310 is in contact with the sealing sticker 2000, and in the third direction, the length of the smoothing member 310 is greater than the width of the sealing sticker 2000, thereby avoiding pressure leakage, thereby ensuring that the sealing sticker 2000 is not prone to warping, and ensuring the aesthetic appearance of the packaging box 1000.

[0057] In other embodiments, the forward movement of the movable member 210 can also drive the smoothing member 310 to move forward and downward. After the pasting is completed, part of the sealing sticker 2000 is located on the upper side wall 1200 of the packaging box 1000, and part of the sealing sticker 2000 is located on the front side wall 1300 of the packaging box 1000.

[0058] Regarding the movement structure of the smoothing member 310, in some embodiments, the smoothing assembly 300 also includes a smoothing bracket 320 and a smoothing elastic member 330. One end of the smoothing bracket 320 is hinged to the hinge block of the base 100 through a rotating shaft 321. The smoothing member 310 is arranged at the other end of the smoothing bracket 320. The forward rotation of the smoothing bracket 320 can drive the smoothing member 310 to move simultaneously in the first direction and the second direction. The smoothing elastic member 330 is arranged between the smoothing bracket 320 and the base 100, and is used to apply elastic force to the smoothing bracket 320 to make the smoothing bracket 320 rotate in the opposite direction. The smoothing member 310 swings between the initial position and the final position, and the smoothing bracket 320 rotates forward to drive the smoothing member 310 to move upward and forward, so that the smoothing member 310 swings from the initial position to the final position. The smoothing member 310 at the initial position is located at the lower side of the packaging box 1000 and at the lower side of the sealing sticker 2000, and the smoothing member 310 at the final position is located at the front side of the packaging box 1000. The setting of the smoothing elastic member 330 ensures that the pressure between the smoothing member 310 and the sealing sticker 2000 is always elastic force, avoiding excessive crimping force and ensuring the integrity of the sealing sticker 2000.

[0059] The trowel bracket 320 is provided with a first hanging part 322, the base 100 is provided with a second hanging part 110, and the trowel elastic member 330 is provided between the first hanging part 322 and the second hanging part 110 and can generate a pulling force. This arrangement makes the installation of the trowel elastic member 330 convenient and improves production efficiency.

[0060] The smoothing elastic member 330 includes a rubber band, one end of which is connected to the first hanging portion 322, and the other end of which is connected to the second hanging portion 110. The rubber band is annular and is sleeved between the first hanging portion 322 and the second hanging portion 110. In other embodiments, the smoothing elastic member 330 may be a tension spring.

[0061] In other embodiments, a first sliding member and a second sliding member may be provided, the first sliding member slides along the first direction and is provided on the base 100, the second sliding member slides along the second direction and is provided on the first sliding member, and the smoothing member 310 is provided on the second sliding member. The first sliding member moves between a first initial position and a first terminal position, the second sliding member moves between a second initial position and a second terminal position, the first spring applies a first elastic force to the first sliding member to stop the first sliding member at the first initial position, and the second spring applies a second elastic force to the second sliding member to stop the second sliding member at the second initial position.

[0062] In some embodiments, the smoothing assembly 300 further includes a buffer 340, the smoothing member 310 is disposed on the smoothing bracket 320, the buffer 340 is disposed on the base 100, and the smoothing bracket 320 rotates in the opposite direction and can be stopped by abutting against the buffer 340. The buffer 340 is provided to provide a buffering tension for the smoothing bracket 320 to avoid a rigid collision between the smoothing bracket 320 and the base 100. The buffer 340 can be a rubber pad, which is fixed to the base 100 by bonding or screwing.

[0063] In order to simplify the structure, the trowel bracket 320 is provided with a first hanging part 322, which is columnar, and the trowel bracket 320 rotates in the opposite direction and stops at the first hanging part 322 abutting against the buffer member 340. This arrangement enables the first hanging part 322 to serve as both a connecting part for connecting the trowel elastic member 330 and a limiting part for limiting the movement of the trowel bracket 320, thereby simplifying the structure of the trowel bracket 320 and reducing the cost. Exemplarily, the hanging part is provided on the trowel bracket 320, and two first hanging parts 322 are formed at both ends.

[0064] In some embodiments, the smoothing member 310 includes a rolling wheel, which is rotatably disposed on the smoothing bracket 320, and the rolling wheel can roll with the sealing sticker 2000. The axis of the rolling wheel extends along the third direction, and during the upward and forward movement of the rolling wheel, the rolling wheel rotates around its own axis, and during the rotation process, the sealing sticker 2000 is pressed against the packaging box 1000, and the rolling friction between the rolling wheel and the sealing sticker 2000 is conducive to ensuring the integrity of the sealing sticker 2000.

[0065] In order to further improve the integrity of the sub-sealing sticker 2000, the smoothing component 300 also includes a buffer layer 311, and the buffer layer 311 is wrapped around the outer periphery of the rolling wheel. The buffer layer 311 can be a rubber sleeve sleeved on the outer periphery of the rolling wheel or a foam material sprayed on the outer periphery of the rolling wheel. The setting of the buffer layer 311, on the one hand, avoids scratching the sealing sticker 2000; on the other hand, it can also help to apply a more sufficient and even force to the sealing sticker 2000 to avoid pressure leakage; finally, it can also play a buffering role when the moving part 210 and the rolling wheel are in contact, reduce the damage caused by the impact, and extend the service life.

[0066] To prevent the sealing sticker 2000 from being damaged, in some embodiments, the sealing device further includes a protective pad 230, which is disposed on the moving member 210. When in use, the sealing sticker 2000 located on the lower side wall 1100 of the packaging box 1000 contacts the protective pad 230, which can effectively prevent scratches. The protective pad 230 may be a rubber or silicone pad.

[0067] The moving member 210 gradually approaches and finally abuts against the smoothing member 310 during the process of moving forward. In this process, the moving member 210 needs to drive the packaging box 1000 to move forward together. In order to avoid the packaging box 1000 and the moving member 210 from being separated under the action of inertia, in some embodiments, the moving assembly 200 includes a stopper 240, which is located at the moving member 210 and is used to abut against the rear side wall 1400 of the packaging box 1000. When the moving member 210 moves forward, the stopper 240 abuts against the rear side wall 1400 of the packaging box 1000 and drives the packaging box 1000 to move forward. Among them, the stopper 240 is fixed to the moving member 210 through a stopper screw 241. The stopper 240 is provided with a stopper hole, which is in a strip shape and extends along the first direction. The moving member 210 is provided with a fixing hole, and the stopper screw 241 passes through the stopper hole and is threadedly engaged in the fixing hole. This arrangement allows the position of the limiting member 240 to be adjusted, thereby ensuring that the front side wall 1300 of the packaging box 1000 can be located in front of the moving member 210 .

[0068] Since the smoothing member 310 has an upward movement, in order to avoid lifting the packaging box 1000 upward, in some embodiments, the sealing device further includes a ballast assembly 400, which can press the packaging box 1000 downward. Exemplarily, the ballast assembly 400 includes a ballast bracket 410, a screw rod 420, and a ballast wheel 430, wherein the ballast bracket 410 is slidably arranged on the base 100 along the third direction, and the ballast bracket 410 is provided with a rotation hole; the screw rod 420 is threadedly matched with the threaded hole of the base 100, and is rotatably arranged in the rotation hole, and the lower end of the screw rod 420 has two stoppers 421, the outer diameter of the stoppers 421 is larger than the diameter of the rotation hole, and the two stoppers 421 are separated at both ends of the rotation hole; the ballast wheel 430 is rotatably arranged on the ballast bracket 410. The outer periphery of the ballast wheel 430 is sleeved on the buffer sleeve 440, and the buffer sleeve 440 can be made of rubber or silicone.

[0069] In some embodiments, a portion of the screw rod 420 is convex outward and forms an upper stopper 421. The screw rod 420 is provided with an annular groove, and the buckle is snapped into the annular groove to form a lower stopper 421. The above arrangement facilitates installation and improves installation efficiency.

[0070] The ballast support 410 is slidably disposed on the cantilever rod 120 of the base 100 along the second direction. The cantilever rod 120 is provided with a sliding hole, and the ballast support 410 is provided with two sliding rods 450, which are arranged at intervals and are both slidably disposed in the sliding hole.

[0071] In some embodiments, the base 100 is provided with a slide rail 130, the moving member 210 is connected to the slider 140, and the slider 140 is slidably provided on the slide rail 130 to improve the smoothness of the movement of the moving member 210 and improve the smoothness of posting the sealing sticker 2000. Two slide rails 130 are provided at intervals along the third direction, the moving member 210 is connected to the two sliders 140, and each slider 140 is slidably matched with the corresponding slide rail 130.

[0072] The base 100 includes two support members 101 and a connecting member 102 disposed between the two support members 101, and a slide rail 130 is disposed on the connecting member 102. The connecting member 102 is rod-shaped and is provided with two, and the two connecting members 102 are spaced apart along the third direction, and each slide rail 130 is disposed on the corresponding connecting member 102. The base 100 also includes two protective plates 103, which are spaced apart along the third direction and are disposed on the left and right sides of the support member 101, respectively, to protect the slide rail 130, the slider 140 and the smoothing assembly 300 from external interference.

[0073] In some embodiments, a control console 150 is also provided on the base 100, and a control button is provided on the control console 150. The control button is communicatively connected to the controller of the sealing device. After the packaging box 1000 with the sealing sticker 2000 is placed on the movable member 210, the control button is pressed, and the controller controls the driving member 220 to drive the movable member 210 to move forward.

[0074] To ensure that the moving position of the movable member 210 is controllable, in some embodiments, the sealing device also includes a sensor 160, which is disposed on the base 100 and is communicated with the sensor 160. The sensor 160 is used to detect the position of the movable member 210. When the movable member 210 moves to the preset position, the sensor 160 sends an in-position signal to the controller, and the controller controls the driving member 220 to drive the movable member 210 to move backward.

[0075] Among them, the driving member 220 includes a telescopic cylinder, which is fixed to the base 100. The output end of the telescopic cylinder is connected to a fixed plate 250. The fixed plate 250 is connected to the moving member 210. The sensor 160 is opposite to the fixed plate 250 and can detect the position of the fixed plate 250, thereby determining the position of the moving member 210.

[0076] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. Sealing device, characterized in that: include: Base (100); A moving component (200), the moving component (200) comprising: A moving member (210) is slidably disposed on the base (100) along a first direction and is used to carry the packaging box (1000); A driving member (220) is disposed on the base (100) and is transmission-connected to the moving member (210); A smoothing assembly (300), the smoothing assembly (300) comprising: a smoothing piece (310), the smoothing piece (310) being movably disposed on the base (100) and being capable of moving simultaneously along the first direction and the second direction, and the smoothing piece (310) being capable of pressing against an adhesive piece adhered to the packaging box (1000), and the length of the smoothing piece (310) being greater than the width of the adhesive piece along the third direction; The smoothing member (310) is configured to be driven by the moving member (210) and move simultaneously in the first direction and the second direction when the moving member (210) moves in the first direction.

2. The sealing device according to claim 1, characterized in that: The smoothing assembly (300) further comprises a smoothing bracket (320) and a smoothing elastic member (330); one end of the smoothing bracket (320) is hinged to the base (100); the smoothing member (310) is arranged at the other end of the smoothing bracket (320); the positive rotation of the smoothing bracket (320) can drive the smoothing member (310) to move simultaneously in the first direction and the second direction; the smoothing elastic member (330) is arranged between the smoothing bracket (320) and the base (100) and is used to apply an elastic force to the smoothing bracket (320) so as to cause the smoothing bracket (320) to rotate in the opposite direction.

3. The sealing device according to claim 2, characterized in that: The smoothing bracket (320) is provided with a first hanging portion (322), the base (100) is provided with a second hanging portion (110), and the smoothing elastic member (330) is provided between the first hanging portion (322) and the second hanging portion (110) and is capable of generating a pulling force.

4. The sealing device according to claim 2, characterized in that: The smoothing assembly (300) further comprises a buffer member (340) and a smoothing bracket (320); the smoothing member (310) is arranged on the smoothing bracket (320); the smoothing bracket (320) can drive the smoothing member (310) to move simultaneously along the first direction and the second direction when the smoothing bracket (320) rotates in the forward direction; the buffer member (340) is arranged on the base (100); the smoothing bracket (320) can rotate in the reverse direction and stop when it abuts against the buffer member (340).

5. The sealing device according to claim 4, characterized in that: The smoothing bracket (320) is provided with a columnar first hanging portion (322), and the smoothing bracket (320) rotates in the opposite direction and stops at the first hanging portion (322) to abut against the buffer member (340).

6. The sealing device according to claim 2, characterized in that: The smoothing member (310) comprises a rolling wheel, which is rotatably arranged on the smoothing bracket (320), and the rolling wheel can be rollingly matched with the adhesive member.

7. The sealing device according to claim 6, characterized in that: The smoothing component (300) further comprises a buffer layer (311), wherein the buffer layer (311) is wrapped around the outer circumference of the rolling wheel.

8. The sealing device according to claim 1, characterized in that: The sealing device further comprises a protective pad (230), wherein the protective pad (230) is arranged on the moving part (210).

9. The sealing device according to claim 1, characterized in that: The moving component (200) further comprises a limiting member (240), wherein the limiting member (240) is located on the moving member (210) and is used to abut against a side wall of the packaging box (1000).

10. The sealing device according to any one of claims 1 to 9, characterized in that: The smoothing member (310) is configured to be driven by the moving member (210) and move upward when the moving member (210) moves along the first direction; The sealing device further comprises a ballast assembly (400), wherein the ballast assembly (400) comprises: A ballast bracket (410) is slidably disposed on the base (100) along a third direction, and the ballast bracket (410) is provided with a rotation hole; A screw rod (420), the screw rod (420) is threadedly matched with the threaded hole of the base (100) and is rotatably disposed in the rotating hole, the lower end of the screw rod (420) has two stoppers (421), the outer diameter of the stoppers (421) is larger than the diameter of the rotating hole, and the two stoppers (421) are located at two ends of the rotating hole; The ballast wheel (430) is rotatably mounted on the ballast support (410).

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