A folding and fastening device for folding the cover of a packaging box

Abstract

A kind of folding and buckling device of folding of packing box cover, including work platform, work platform top is equipped with a mounting bracket, the mounting bracket top is equipped with a folding unit and is equipped with the closing unit in the folding unit side;The closing unit includes horizontal limiting mechanism equipped with the end of the mounting bracket, guiding mechanism equipped with the lower side of the horizontal limiting mechanism, vertical support mechanism equipped with the two sides of the guiding mechanism and folding mechanism equipped with the top of the horizontal limiting mechanism;The folding unit includes lifting mechanism equipped with the top of mounting bracket, clap mechanism equipped with the front end of the folding mechanism, side ear plate folding mechanism equipped with the two sides of the clap mechanism and pressing mechanism equipped with between the side ear plate folding mechanism and clap mechanism, the folding and buckling of the front plugboard of box cover are automatically completed by folding mechanism and guiding mechanism, clap mechanism, improve work efficiency, avoid the risk of falling damage of electronic scale in the process of artificial handling and coating due to negligence.

Description

Technical Field

[0001] This utility model relates to the technical field of packaging box lids, and specifically to a bending and fastening device for packaging box lids. Background Technology

[0002] In the production process of products such as electronic scales, packaging is not only the "outer garment" of the product, but also the first line of defense to protect the product from physical damage, moisture, dust and other external factors. A sturdy and well-sealed package can ensure that the electronic scale is safe and sound during transportation and storage, thereby guaranteeing the quality and performance of the product. At the same time, packaging is also an important carrier of the product's market image. Exquisite packaging design, clear labeling and printing can attract consumers' attention, enhance the product's grade and brand image, and thus stand out in the fierce market competition.

[0003] Traditional packaging processes rely heavily on manual labor, requiring workers to manually bend and fasten the end plates, front inserts, and side lugs of the boxes. This operational mode has significant drawbacks: manual operation is inefficient, with only a few dozen boxes that can be sealed per hour, which is insufficient to meet the production capacity of dozens of boxes per minute required by modern production lines; packaging quality is unstable, as the bending angle and fastening force are entirely dependent on worker experience, which can easily lead to problems such as box deformation and incomplete sealing, resulting in products getting damp or damaged during transportation; and labor costs are rising year by year, making the recruitment and retention of skilled packaging workers a hidden burden on business operations. Summary of the Invention

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a bending and fastening device for packaging box lids. This device utilizes multiple components such as a mounting bracket, a folding unit, and a closing unit to work together to achieve automated bending and fastening of the packaging box lid. During operation, the first guide rail and the first slider below the mounting bracket are adjusted to precisely position the device at the packaging box lid fastening position, providing a foundation for subsequent automated operations. The lifting mechanism can adjust the working position of the closing unit as needed, ensuring that each component accurately acts on the packaging box. The clamping mechanism stabilizes the lid at the start of operation, preventing shaking or wobbling when the electronic scale is placed. The sliding and horizontal limiting mechanism stabilizes the box lid end plate, while the side ear plate bending mechanism, through the horizontal displacement adjustment module and drive, automatically bends the side ear plates of packaging boxes of different sizes, eliminating the need for manual bending. The bending mechanism, guiding mechanism, and snapping mechanism work together to automatically complete the bending and snapping of the front insert plate of the box lid. The entire process does not require direct manual contact with the electronic scale for packaging operations, greatly improving work efficiency and reducing the occupation of human resources and time costs. At the same time, automated operation avoids the risk of the electronic scale being dropped and damaged due to negligence during manual handling and packaging, reducing economic losses for enterprises and ensuring the safety of the electronic scale in the packaging process.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A bending and fastening device for a packaging box lid includes a working platform. A mounting bracket is positioned above the working platform. A folding unit and a closing unit are positioned above the mounting bracket and located on one side of the folding unit. The closing unit is connected to the mounting bracket. The folding unit cooperates with the closing unit to bend the end plate of the packaging box lid. The closing unit is used to bend the side ear plate and close the packaging box lid. The closing unit includes a horizontal limiting mechanism at one end of the mounting bracket, a guide mechanism below the horizontal limiting mechanism, vertical support mechanisms on both sides of the guide mechanism, and a bending mechanism above the horizontal limiting mechanism. The horizontal limiting mechanism provides stable support for the packaging box lid, and the guide mechanism... The vertical support mechanism guides the insertion of the box lid into the box body. It supports the box lid and works with the folding unit to bend the side ear plates. The bending mechanism bends the box lid. The folding unit includes a lifting mechanism above the mounting bracket, a snap-fit ​​mechanism at the front end of the bending mechanism, side ear plate bending mechanisms on both sides of the snap-fit ​​mechanism, and a pressing mechanism between the side ear plate bending mechanism and the snap-fit ​​mechanism. The lifting mechanism moves the folding unit vertically, the snap-fit ​​mechanism closes the box lid, the side ear plate bending mechanism bends the side ear plates, and the pressing mechanism works with the side ear plate bending mechanism to limit and fix the box lid.

[0006] The mounting bracket is provided with a first guide rail fixedly connected to the working platform and a first slider slidably connected to the first guide rail. The mounting bracket is fixedly connected to the first slider. A limiting connector is provided on the mounting bracket. The mounting bracket is adjusted by adjusting the position of the first slider. The mounting bracket is limited and connected to the working platform through the limiting connector. The mounting bracket is used to provide working space for the folding and closing unit to cooperate in completing the bending and fastening action.

[0007] The horizontal limiting mechanism includes a gantry frame at one end of the mounting bracket, a first drive on both sides above the gantry frame, and a limiting part at one end of the first drive. The gantry frame is used to mount the first drive, the first drive is used to provide driving force to the limiting part, and the limiting part is used to support and stabilize the packaging box lid.

[0008] The guiding mechanism includes a first connector located above the mounting bracket, a second drive located above the first connector, and a guide located at one end of the second drive. The guide is used to guide the front insert plate into the packaging box body, the second drive is used to drive the guide to insert into the packaging box, and the first connector is used to install the second drive.

[0009] The vertical support mechanism includes a second connector connected to a mounting bracket via a pad, a third drive passing through one end of the second connector, a third connector connected to the other end of the second connector via a second guide rail and a second slider, and a support portion disposed at one end of the third connector. The second connector is used to mount the third drive, the third drive is used to provide power for the extension and retraction of the support portion, the third connector is used to cooperate with the third drive to drive the support portion to move, and the support portion is used to support the box cover when the side ear plate is bent.

[0010] The bending mechanism includes a mounting arm connected to a mounting bracket via a vertical shaft, a fourth drive located at one end of the mounting arm, and a bending portion located at the output end of the fourth drive. The mounting arm is used to mount the fourth drive, the fourth drive is used to provide driving force to push the bending portion forward, and the bending portion is used to contact the bending box cover.

[0011] The lifting mechanism includes a fifth drive located above the mounting bracket, a fourth connector located at the output end of the fifth drive, and a third guide rail and a third slider located between the mounting bracket and the fourth connector. The fifth drive is used to provide power by driving the fourth connector to move up and down along the third guide rail through the slider. The fourth connector is used to provide space for installing the side ear plate bending mechanism, the pressing mechanism, and the snapping mechanism.

[0012] The side ear plate bending mechanism includes a fifth connector located on one side of the fourth connector, a sixth drive located on one side of the fifth connector, and a bending head located at the output end of the sixth drive. The fifth connector is used to install the sixth drive, which provides driving force to deflect the bending head to one side. The bending head is used to contact the side ear plates on both sides of the box cover.

[0013] The clamping mechanism includes a seventh drive located on the other side of the fifth connector and a clamping head located at the end of the seventh drive. The seventh drive provides driving force to the clamping head to press the lid down, and the clamping head is used to contact and clamp the lid.

[0014] The snap-fit ​​mechanism includes a sixth connector located on one side of the fourth connector, an eighth drive located at one end of the sixth connector, and a snap-fit ​​plate located at the output end of the eighth drive. The sixth connector is used to install the eighth drive, which provides driving force for the snap-fit ​​plate to flip toward the lid side. The snap-fit ​​plate is used to contact and press the lid.

[0015] The beneficial effects of this utility model are as follows: 1. The mounting bracket is positioned via the first guide rail and the first slider, providing a suitable base for subsequent operations. The fifth drive of the lifting mechanism drives the fourth connecting piece to move along the third guide rail, precisely adjusting the working position of the lid-closing unit so that each component can accurately act on the packaging box. The seventh drive of the pressing mechanism drives the pressing head to stabilize the lid and prevent the electronic scale from shaking when placed. The first drive of the horizontal limiting mechanism pushes the limiting part to fix the lid end plate, providing stable support for the side ear plate bending. The sixth drive of the side ear plate bending mechanism drives the bending head, which, with the cooperation of the horizontal displacement adjustment module, automatically bends the side ear plate according to the size of the packaging box. The fourth drive of the bending mechanism pushes the bending part, which, in conjunction with the guiding mechanism and the snapping mechanism, automatically completes the bending and snapping of the front insert plate of the lid, realizing an automated lid-closing process. This solves the problem of low efficiency in manual packaging, greatly improves the packaging efficiency of the electronic scale, and reduces the production cycle. 2. The entire packaging process requires only a small number of personnel to monitor the equipment. There is no need for manual handling, bending, fastening and other complex operations. After the bracket is installed and positioned, each drive will drive the corresponding parts in sequence to achieve automation. This reduces the reliance on a large number of people, reduces the labor cost of enterprises in the electronic scale packaging process, and frees up manpower to invest in other more valuable production processes. Attached Figure Description

[0016] Figure 1 This is one of the perspective views of this utility model.

[0017] Figure 2 This is the second perspective view of this utility model.

[0018] Figure 3 This is a perspective view of the mounting bracket of this utility model.

[0019] Figure 4 This is a perspective view of the lid unit of this utility model.

[0020] Figure 5 This is a perspective view of the lifting mechanism, the side ear plate bending mechanism, and the pressing mechanism of this utility model.

[0021] Figure 6 This is a perspective view of the striking mechanism of this utility model.

[0022] Figure 7 This is a three-dimensional view of the packaging box of this utility model.

[0023] Explanation of icon numbers: 1-Working platform, 2-Mounting bracket, 20-First guide rail, 21-First slider, 22-Limiting connector, 23-First connecting plate, 24-Second connecting plate, 25-Third connecting plate, 26-Fourth connecting plate, 27-Fifth connecting plate, 28-Sixth connecting plate, 29-Seventh connecting plate, 3-Covering unit, 30-Horizontal limiting mechanism, 300-Gantry frame, 3000-First support column, 3001-Eighth connecting plate, 301-First drive, 30 2-Limiting part, 31-Guiding mechanism, 310-First connecting piece, 311-Second drive, 312-Guiding piece, 313-Connector, 314-Guiding part, 32-Vertical support mechanism, 320-Padded block, 321-Second connecting piece, 322-Third drive, 323-Second guide rail, 324-Second slider, 325-Third connecting piece, 326-Supporting part, 327-Third drive shaft, 33-Bending mechanism, 330-Vertical shaft, 331-Mounting Arm, 332-Fourth Drive, 333-Bending Section, 334-Bearing Seat, 335-Sliding Plate, 4-Folding Cover Unit, 40-Lifting Mechanism, 400-Fifth Drive, 401-Fourth Connector, 402-Third Guide Rail, 403-Third Slider, 404-Fifth Drive Shaft, 41-Side Ear Plate Bending Mechanism, 410-Fifth Connector, 411-Sixth Drive, 412-Bending Head, 413-Horizontal Displacement Adjustment Module, 414-Sixth Drive Shaft, 415 416-First hinge, 42-Pressure mechanism, 420-Seventh drive, 421-Pressure head, 422-Seventh drive shaft, 43-Closing mechanism, 430-Sixth connector, 431-Eighth drive, 432-Closing plate, 433-Mounting plate, 434-Eighth drive shaft, 435-Second hinge, 436-Second hinge, 5-Packaging box, 50-Box body, 51-Box lid, 52-End plate, 53-Front insert plate, 54-Side ear plate. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings: like Figure 1-7As shown, this utility model relates to a bending and fastening device for a packaging box lid, including a working platform 1, a mounting bracket 2 above the working platform 1, a lid-folding unit 4 above the mounting bracket 2, and a lid-closing unit 3 on one side of the lid-folding unit 4. The lid-closing unit 3 is connected to the mounting bracket 2. The lid-folding unit 4 is used to cooperate with the lid-closing unit 3 to bend the end plate 52 of the packaging box lid, and the lid-closing unit 3 is used to bend the side ear plate 54 and close the packaging box lid 51. The lid-closing unit 3 includes a horizontal limiting mechanism 30 at one end of the mounting bracket 2, a guide mechanism 31 below the horizontal limiting mechanism 30, vertical support mechanisms 32 on both sides of the guide mechanism 31, and a bending mechanism 33 above the horizontal limiting mechanism 30. The horizontal limiting mechanism 30 is used to support and stabilize the packaging box lid 51, and the guide mechanism 31 is used to bend the side ear plate 54 and close the packaging box lid 51. The vertical support mechanism 32 guides the box lid 51 when it is inserted into the box body 50. It supports the box lid and works with the folding unit 4 to bend the side ear plate 54. The bending mechanism 33 bends the box lid 51. The folding unit 4 includes a lifting mechanism 40 above the mounting bracket 2, a snapping mechanism 43 at the front end of the bending mechanism 33, side ear plate bending mechanisms 41 on both sides of the snapping mechanism 43, and a pressing mechanism 42 between the side ear plate bending mechanism 41 and the snapping mechanism 43. The lifting mechanism 40 moves the folding unit 4 vertically, the snapping mechanism 43 closes the box lid 51, the side ear plate bending mechanism 41 bends the side ear plate 54, and the pressing mechanism 42 works with the side ear plate bending mechanism 41 to limit and fix the box lid 51.

[0025] like Figure 7 As shown, the fastening parts of the box cover 51 are the end plate 52, the front insert plate 53 connected to the end plate 52, and the side ear plates 54 on both sides of the end plate 52.

[0026] like Figure 1-3 As shown, the mounting bracket 2 has a first guide rail 20 fixedly connected to the working platform 1 and a first slider 21 slidably connected to the first guide rail 20. The mounting bracket 2 is fixedly connected to the first slider 21. The mounting bracket 2 is provided with a limiting connector 22. The mounting bracket 2 is adjusted by adjusting the position of the first slider 21 and fixed by the limiting connector 22. The mounting bracket 2 provides working space for the mounting folding unit 4 and the closing unit 3 to cooperate in completing the bending and fastening action.

[0027] like Figure 3As shown, further, four sets of first guide rails 20 and first sliders 21 are installed below the mounting bracket 2, respectively located at the four corners of the mounting bracket 2. The four sets of first guide rails 20 and first sliders 21 are arranged parallel to each other. The mounting bracket 2 includes a first connecting plate 23 on one side of the working platform 1, a second connecting plate 24 above the first connecting plate 23, a third connecting plate 25 on the upper end of the second connecting plate 24, a fourth connecting plate 26 on one side of the third connecting plate 25, a fifth connecting plate 27 at one end of the fourth connecting plate 26, a sixth connecting plate 28 below the fifth connecting plate 27, and a seventh connecting plate 29 below the sixth connecting plate 28. The lower ends of the first connecting plate 23 are connected to two sets of first sliders 21. The second connecting plate 24 is an L-shaped plate. One end of the second connecting plate 24 is fixedly connected to one end of the first connecting plate 23, and the other end of the second connecting plate 24 is connected to the third connecting plate 23. One side of the third connecting plate 25 is fixedly connected, and two sets of fourth connecting plates 26 are fixedly connected to the two ends of the other side of the third connecting plate 25. The other end of the fourth connecting plate 26 is fixedly connected to the fifth connecting plate 27. The two ends of the other side of the fifth connecting plate 27 are fixedly connected to two sets of sixth connecting plates 28. The lower end of the sixth connecting plate 28 is fixedly connected to the seventh connecting plate 29. The lower ends of the seventh connecting plate 29 are respectively connected to two other sets of first sliders 21. By connecting the first connecting plate 23 to the seventh connecting plate 29 in sequence, the mounting bracket 2 has the function of displacement adjustment in the vertical direction relative to the feeding direction of the packaging box on the working platform 1. This is so that after all the mechanisms are installed, the position of the mounting bracket 2 can be adjusted to adapt to the bending and fastening action of each mechanism on the packaging box cover 51, and the mounting bracket 2 has the characteristics of a truss structure, so that there is a certain space below for the bending and fastening of the packaging box cover 51.

[0028] like Figure 2 , 4 As shown, the horizontal limiting mechanism 30 includes a gantry frame 300 disposed at one end of the mounting bracket 2, a first drive 301 disposed on both sides above the gantry frame 300, and a limiting part 302 disposed at one end of the first drive 301. The gantry frame 300 is used to mount the first drive 301, the first drive 301 is used to provide driving force to the limiting part 302, and the limiting part 302 is used to support and stabilize the packaging box lid 51.

[0029] like Figure 2 , 4As shown, the gantry frame 300 further includes a first support column 3000 located at both ends above the first connecting plate 23 and an eighth connecting plate 3001 located at the upper end of the first support column 3000. The first drive 301 consists of two sets of power drive sources, which are respectively installed at both ends above the eighth connecting plate 3001. When the horizontal limiting mechanism 30 is working, the first drive 301 drives the limiting part 302 to extend to one side of the packaging box, so that the lower side of the end plate 52 of the box cover 51 contacts the upper side of the limiting part 302. This action is to stabilize the end plate 52 of the box cover 51 when the side ear plate bending mechanism 41 is working. After the horizontal limiting mechanism 30 is working, it returns to the initial position.

[0030] like Figure 2 , 4 As shown, the guide mechanism 31 includes a first connector 310 disposed above the mounting bracket 2, a second drive 311 disposed above the first connector 310, and a guide 312 disposed at one end of the second drive 311. The guide 312 is used to guide the front insert plate 53 into the packaging box body 50, the second drive 311 is used to drive the guide 312 into the packaging box, and the first connector 310 is used to install the second drive 311.

[0031] like Figure 2 , 4 As shown, the first connector 310 of the guide mechanism 31 is installed above the first connecting plate 23 and is located between the two sets of first support columns 3000. The guide 312 includes a connector 313 at one end of the second drive 311 and a guide portion 314 on the connector 313. The guide portion 314 is a hard thin sheet of 5mm-10mm. When the guide mechanism 31 is working, the second drive 311 drives the connector 313 to extend to the lower edge of the packaging box front cover 51, so that the connector 313 drives the guide portion 314 to extend into the packaging box front cover 51. This action is to assist the snap-fit ​​mechanism 43 in snapping the front insert plate 53 of the box cover end plate 52 into the packaging box. After the guide mechanism 31 has finished working, it returns to its initial position.

[0032] like Figure 2 , 4 As shown, the vertical support mechanism 32 includes a second connector 321 connected to the mounting bracket 2 via a pad 320, a third drive 322 passing through one end of the second connector 321, a third connector 325 connected to the other end of the second connector 321 via a second guide rail 323 and a second slider 324, and a support portion 326 disposed at one end of the third connector 325. The second connector 321 is used to mount the third drive 322, the third drive 322 is used to provide power for the extension and retraction of the support portion 326, the third connector 325 is used to cooperate with the third drive 322 to drive the support portion 326 to move, and the support portion 326 is used to support the end plate 52 of the box cover 51 when the side ear plate 54 is bent.

[0033] like Figure 2 , 4 As shown, the vertical support mechanism 32 is further provided in two sets, respectively installed on both sides of the guide mechanism 31. The pad 320 is fixedly installed above the first connecting plate 23. The second connecting member 321 is an L-shaped plate. The third drive 322 is horizontally installed on the second connecting member 321. The second connecting member 321 is vertically fixedly connected to the second guide rail 323. The second slider 324 is slidably connected to the second guide rail 323. The second slider 324 is fixedly connected to the third connecting member 325. The third drive 322 and the third connecting member 325 are further connected to each other. The components 325 are connected by a third drive shaft 327. When the vertical support mechanism 32 is working, the third drive 322 drives the third drive shaft 327 to extend upward. The third drive shaft 327 drives the third connecting component 325 to move upward. The third connecting component 325 drives the support part 326 to press upward against the lower side of the end plate 52 of the box cover 51. This action is to support and stabilize the end plate 52 of the box cover 51 when the bending mechanism 33 bends the front insert plate 53 of the packaging box. After the vertical support mechanism 32 completes the action, it returns to the initial position.

[0034] like Figure 2 , 4 As shown, the bending mechanism 33 includes a mounting arm 331 connected to the mounting bracket 2 via a vertical shaft 330, a fourth drive 332 located at one end of the mounting arm 331, and a bending portion 333 located at the output end of the fourth drive 332. The mounting arm 331 is used to mount the fourth drive 332, and the fourth drive 332 is used to provide driving force to push the bending portion 333 forward. The bending portion 333 is used to contact the insert plate 53 before bending the box cover 51.

[0035] like Figure 2 , 4As shown, further, the lower end of the vertical shaft 330 of the bending mechanism 33 is fixedly connected to the first connecting plate 23. The mounting arm 331 connected to the upper end of the vertical shaft 330 has multiple degrees of freedom adjustment functions. Its spatial position can be adjusted by manually adjusting each clamping component. The mounting arm 331 is connected to the fourth drive 332 through a bearing seat 334. The bearing seat 334 adjusts the downward working direction of the fourth drive 332 to a certain angle with the horizontal plane. This angle automatically changes by 0-10 degrees depending on the bending degree of the front insert plate 53 when bending the box cover 51. A sliding plate 335 is provided on the fourth drive 332. One side of the sliding plate 335 is slidably connected to one side of the fourth drive 332. The lower side of one end of the sliding plate 335 is connected to the fourth drive 332 through the fourth drive shaft. The front end of the sliding plate 335 is connected to the bending part 333. When the bending mechanism 33 is working, when the fourth drive 332 drives the fourth drive shaft to extend downward, the sliding plate 335 moves with the fourth drive shaft, so that the bending part 333 is pushed forward to contact the front insert plate 53 of the box cover 51. It continues to push and press down to bend the front insert plate 53. After the bending mechanism 33 completes the action, it returns to the initial position.

[0036] like Figure 1-3 As shown in Figures 5-6, the lifting mechanism 40 includes a fifth drive 400 located above the mounting bracket 2, a fourth connector 401 located at the output end of the fifth drive 400, and a third guide rail 402 and a third slider 403 located between the mounting bracket 2 and the fourth connector 401. The fifth drive 400 provides power to drive the fourth connector 401 to move up and down along the third guide rail 402 via the slider 403. The fourth connector 401 provides space for mounting the side ear plate bending mechanism 41, the pressing mechanism 42, and the snapping mechanism 43.

[0037] like Figure 1-3 As shown in Figures 5-6, the fifth drive 400 of the lifting mechanism 40 is further fixedly connected to the top of the third connecting plate 25. Two sets of third guide rails 402 are installed parallel to one side of the third connecting plate 25. The third guide rails 402 are slidably connected to the third slider 403. The third slider 403 is fixedly connected to the fourth connecting member 401. When the lifting mechanism 40 is working, the fifth drive 400 drives the fifth drive shaft 404 to move. The fifth drive shaft 404 reaches the fourth connecting member 401 and causes vertical displacement. This action is to cooperate with the lid closing unit 3 to adjust the vertical position of the packaging box lid 51.

[0038] like Figure 1-3As shown in Figures 5-6, the side ear plate bending mechanism 41 includes a fifth connector 410 disposed on one side of the fourth connector 401, a sixth drive 411 disposed on one side of the fifth connector 410, and a bending head 412 disposed at the output end of the sixth drive 411. The fifth connector 410 is used to mount the sixth drive 411, and the sixth drive 411 is used to provide driving force for the bending head 412 to deflect to one side. The bending head 412 is used to contact the side ear plates 54 on both sides of the bending box cover 51.

[0039] like Figure 1-3 As shown in Figures 5-6, furthermore, the side ear plate bending mechanism 41 is provided in two sets, respectively installed at both ends of the fourth connector 401. A horizontal displacement adjustment module 413 is provided between one end of the side ear plate bending mechanism 41 and the fourth connector 401. This horizontal displacement adjustment module 413 is used to adjust the distance between the two sets of side ear plate bending mechanisms 41 according to the width of the packaging box, increasing the practicality of the device. The horizontal displacement adjustment module 413 includes a fixed base on one side of the fourth connector 401, two sets of fourth guide rails on one side of the fixed base, a fourth slider slidably connected to the fourth guide rails, a drive motor between the two sets of guide rails, and a drive plate on one side of the slider. The drive plate is connected to the drive motor via a motor shaft and is fixedly connected to the fourth connector 401. The sixth drive 411 is provided with a sixth drive shaft 414. The first hinge joint 415 is connected to the end of the bending head 412, which is hinged to the sixth drive shaft 414. The bending head 412 is connected to the lower end of the fourth connector 401 by the first hinge 416, which makes the bending head 412 rotate toward the packaging box. When the side ear plate bending mechanism 41 is working, the two sets of side ear plate bending mechanisms 41 act simultaneously. First, the distance between the two sets of side ear plate bending mechanisms 41 is adjusted by the horizontal displacement adjustment module 413. Then, the sixth drive shaft 414 is driven to extend downward by the sixth drive 411. Through the limiting effect of the first hinge 416, the bending head 412 rotates from top to bottom around the first hinge joint 415 toward the side ear plate 54 of the packaging box, thereby completing the bending action of the side ear plate 54. This action, together with the snap-fit ​​mechanism 43, fastens the front insert plate 53 of the packaging box cover 51. After the side ear plate bending mechanism 41 completes the action, it returns to the initial position.

[0040] like Figure 1-3As shown in Figures 5-6, the pressing mechanism 42 includes a seventh drive 420 located on the other side of the fifth connector 410 and a pressing head 421 located at the end of the seventh drive 420. The seventh drive 420 provides driving force to press the pressing head 421 downward to press the box cover 51. The pressing head 421 is used to contact and press the box cover 51. The seventh drive 420 is fixedly connected to the fifth connector 410 through a mounting block. The seventh drive 420 is fixedly connected to the pressing head 421 through a seventh drive shaft 422. When the pressing mechanism 42 is working, the seventh drive 420 drives the seventh drive shaft 422 to extend downward. The seventh drive shaft 422 drives the pressing head 421 downward to press the box cover 51. This action is to cooperate with the folding unit 4 and the closing unit 3 to fold and close the box cover 51. After the pressing mechanism 42 completes the action, it returns to its initial position.

[0041] like Figure 1-3 As shown in Figures 5-6, the snap-fit ​​mechanism 43 includes a sixth connector 430 disposed on one side of the fourth connector 401, an eighth drive 431 disposed at one end of the sixth connector 430, and a snap-fit ​​plate 432 disposed at the output end of the eighth drive 431. The sixth connector 430 is used to mount the eighth drive 431, and the eighth drive 431 is used to provide driving force for the snap-fit ​​plate 432 to flip toward the side of the lid 51. The snap-fit ​​plate 432 is used to contact and press the end plate 52 of the lid 51.

[0042] like Figure 1-3 As shown in Figures 5-6, further, the eighth drive 431 of the snap-fit ​​mechanism 43 is fixedly connected to the sixth connecting member 430 via a mounting plate 433. The eighth drive 431 is connected to the eighth drive shaft 434, one end of which is connected to the second hinge joint 435. The snap-fit ​​plate 432 is hinged to the eighth drive shaft 434 via the second hinge joint 435. The snap-fit ​​plate 432 is connected to the lower end of the mounting plate 433 via a second hinge 436, so that the snap-fit ​​plate 432 faces the packaging. When the end plate 52 of the box rotates to one side, the snap-fit ​​mechanism 43 works, and the eighth drive shaft 434 is driven to extend downward through the eighth drive 431. Through the limiting action of the second hinge 436, the snap-fit ​​plate 432 rotates from top to bottom around the second hinge joint 435 towards the front of the packaging box, thereby bending the end plate 52 downward and completing the snap-fit ​​of the front insert plate 53. This action is to snap-fit ​​the front insert plate 53 and the side ear plate 54 of the packaging box. After the snap-fit ​​mechanism 43 completes the action, it returns to the initial position.

[0043] Working principle: The working sequence is as follows: the folding unit 4 and the closing unit 3 return to their initial positions and are in an activated state. The first step is to manually adjust the horizontal position of the mounting bracket 2 so that the folding unit 4 and the closing unit 3 are in the box lid 51 fastening position. The second step is to work the lifting mechanism 40 to adjust the working position of the closing unit 3. The third step is to work the pressing mechanism 42 to press the box lid 51. The fourth step is to work the horizontal limiting mechanism 30. The fifth step is to work the two sets of side ear plate bending mechanisms 41 to bend the side ear plates 54. The sixth step is to work the following steps. Step 1: The horizontal limiting mechanism 30 completes its work and returns to its initial position. Step 2: The vertical support mechanism 32 provides stable support for the lid 51. Step 3: The bending mechanism 33 bends the front insert plate 53. Step 4: The vertical support mechanism 32 completes its work and returns to its initial position. Step 5: The guide mechanism 31 operates. Step 6: The snap-fit ​​mechanism 43 operates. Step 7: The pressing mechanism 42, the side ear plate bending mechanism 41, the bending mechanism 33, and the guide mechanism 31 sequentially return to their initial positions, completing this process and entering the next process cycle.Specifically, firstly, the folding unit 4 and the closing unit 3 are in their initial and ready-to-activate state. By adjusting the four sets of first guide rails 20 and the first slider 21 below the mounting bracket 2, the mounting bracket 2 drives the folding unit 4 and the closing unit 3 to the box lid 51 fastening position, providing a suitable position for subsequent operations. Then, the fifth drive 400 of the lifting mechanism 40 drives the fifth drive shaft 404, causing the fourth connecting piece 401, which is fixed to the side ear plate bending mechanism 41, the pressing mechanism 42, and the snapping mechanism 43, to move up and down along the third guide rail 402. Adjust the working position of the lid closing unit 3, and then the seventh drive 420 of the pressing mechanism 42 drives the seventh drive shaft 422, so that the pressing head 421 presses down on the lid 51 to stabilize the position of the lid 51. At this time, the first drive 301 of the horizontal limiting mechanism 30 drives the limiting part 302 to extend, so that the lower side of the end plate 52 of the lid 51 contacts the limiting part 302, stabilizing the end plate 52 when the side ear plate is bent. The side ear plate bending mechanism 41 first adjusts the distance between the two sets of bending heads 412 through the drive motor of the horizontal displacement adjusting module 413, and then the sixth drive 411 drives the sixth drive shaft 422. Shaft 414 causes the bending head 412 to rotate around the first hinge joint 415, completing the bending of the side ear plate 54. After the horizontal limiting mechanism 30 returns to its initial position, the third drive 322 of the vertical support mechanism 32 drives the third drive shaft 327, causing the support part 326 to press upward against the lower side of the end plate 52 of the box cover 51, cooperating with the bending mechanism 33. The fourth drive 332 of the bending mechanism 33 drives the fourth drive shaft, causing the sliding plate 335 to drive the bending part 333 forward and press down on the front insert plate 53 to bend it. Afterward, the vertical support mechanism 32 returns to its initial position, guiding... The second drive 311 of mechanism 31 drives the connector 313, causing the guide part 314 to extend into the front cover 51 of the packaging box, assisting the snap-fit ​​mechanism 43 in its operation. The eighth drive 431 of the snap-fit ​​mechanism 43 drives the eighth drive shaft 434, causing the snap-fit ​​plate 432 to rotate around the second hinge joint 435, completing the bending of the end plate 52 and the snap-fit ​​of the front insert plate 53. Finally, the pressing mechanism 42, the side ear plate bending mechanism 41, the bending mechanism 33, and the guide mechanism 31 sequentially return to their initial positions, completing one cycle. The various components cooperate with each other to realize the bending and snap-fit ​​operation of the packaging box cover 51.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. Therefore, without departing from the design spirit of the present utility model, any equivalent changes or modifications made by those skilled in the art to the structure, features and principles of the present utility model should fall within the protection scope of the patent application of the present utility model.

Claims

1. A bending and fastening device for a packaging box lid, comprising a working platform, characterized in that: A mounting bracket is provided above the work platform. A folding cover unit and a closing cover unit are provided above the mounting bracket. The folding cover unit is used to cooperate with the closing cover unit to bend the end plate of the box lid. The closing cover unit is used to bend the side ear plate and close the box lid. The closing unit includes a horizontal limiting mechanism at one end of the mounting bracket, a guide mechanism at the lower side of the horizontal limiting mechanism, vertical support mechanisms on both sides of the guide mechanism, and a bending mechanism above the horizontal limiting mechanism. The horizontal limiting mechanism is used to support and stabilize the box lid, the guide mechanism is used to guide the box lid when it is inserted into the box body, the vertical support mechanism is used to support the box lid and cooperate with the closing unit to bend the side ear plate, and the bending mechanism is used to bend the box lid. The folding unit includes a lifting mechanism located above the mounting bracket, a snap-fit ​​mechanism located at the front end of the bending mechanism, side ear plate bending mechanisms located on both sides of the snap-fit ​​mechanism, and a pressing mechanism located between the side ear plate bending mechanism and the snap-fit ​​mechanism. The lifting mechanism is used to move the folding unit vertically, the snap-fit ​​mechanism is used to close the box lid, the side ear plate bending mechanism is used to bend the side ear plates of the box, and the pressing mechanism is used to cooperate with the side ear plate bending mechanism to limit and fix the box lid.

2. The bending and fastening device for a packaging box lid according to claim 1, characterized in that: The mounting bracket is provided with a first guide rail fixedly connected to the working platform and a first slider slidably connected to the first guide rail. The mounting bracket is fixedly connected to the first slider. A limiting connector is provided on the mounting bracket. The mounting bracket is adjusted by adjusting the position of the first slider. The mounting bracket is limited and connected to the working platform through the limiting connector. The mounting bracket is used to provide working space for the folding and closing unit to cooperate in completing the bending and fastening action.

3. The bending and fastening device for a packaging box lid according to claim 1, characterized in that: The horizontal limiting mechanism includes a gantry frame at one end of the mounting bracket, a first drive on both sides above the gantry frame, and a limiting part at one end of the first drive. The gantry frame is used to mount the first drive, the first drive is used to provide driving force for the extension and retraction of the limiting part, and the limiting part is used to support and stabilize the box lid.

4. The bending and fastening device for a packaging box lid according to claim 1, characterized in that: The guiding mechanism includes a first connector located above the mounting bracket, a second drive located above the first connector, and a guide located at one end of the second drive. The guide is used to guide the front insert plate into the packaging box body, the second drive is used to drive the guide to insert into the packaging box, and the first connector is used to install the second drive.

5. The bending and fastening device for a box lid according to claim 1, characterized in that: The vertical support mechanism includes a second connector connected to a mounting bracket via a pad, a third drive passing through one end of the second connector, a third connector located at the other end of the second connector via a second guide rail and a second slider, and a support portion located at one end of the third connector. The second connector is used to mount the third drive, the third drive is used to provide power for the extension and retraction of the support portion, the third connector is used to cooperate with the third drive to drive the support portion to move, and the support portion is used to support the box cover when the side ear plate is bent.

6. The bending and fastening device for a packaging box lid according to claim 1, characterized in that: The bending mechanism includes a mounting arm connected to a mounting bracket via a vertical shaft, a fourth drive located at one end of the mounting arm, and a bending part located at the output end of the fourth drive. The mounting arm is used to mount the fourth drive, the fourth drive is used to provide driving force for the bending part to push the lid forward, and the bending part is used to contact and bend the lid.

7. The bending and fastening device for a packaging box lid according to claim 1, characterized in that: The lifting mechanism includes a fifth drive located above the mounting bracket, a fourth connector located at the output end of the fifth drive, and a third guide rail and a third slider located between the mounting bracket and the fourth connector. The fifth drive is used to provide power by driving the fourth connector to move up and down along the third guide rail through the slider. The fourth connector is used to provide space for installing the side ear plate bending mechanism, the pressing mechanism, and the snapping mechanism.

8. The bending and fastening device for a packaging box lid according to claim 7, characterized in that: The side ear plate bending mechanism includes a fifth connector located on one side of the fourth connector, a sixth drive located on one side of the fifth connector, and a bending head located at the output end of the sixth drive. The fifth connector is used to install the sixth drive, which provides driving force to deflect the bending head to one side. The bending head is used to contact the side ear plates on both sides of the box cover.

9. The bending and fastening device for a box lid according to claim 8, characterized in that: The clamping mechanism includes a seventh drive located on the other side of the fifth connector and a clamping head located at the end of the seventh drive. The seventh drive provides driving force to the clamping head to press the lid down, and the clamping head is used to contact and clamp the lid.

10. The bending and fastening device for a box lid according to claim 8, characterized in that: The snap-fit ​​mechanism includes a sixth connector located on one side of the fourth connector, an eighth drive located at one end of the sixth connector, and a snap-fit ​​plate located at the output end of the eighth drive. The sixth connector is used to install the eighth drive, which provides driving force for the snap-fit ​​plate to flip toward the lid side. The snap-fit ​​plate is used to contact and press the lid.

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