A rectangular carton packaging apparatus

Abstract

This invention discloses a rectangular box packaging device, relating to the field of packaging technology. It includes: multiple flat kraft paper boxes stacked within a limiting frame; each kraft paper box includes a four-panel fold, two cover flaps, six flaps, and two adhesive strips; a platform top surface has a vacuum adsorption area with two receiving slots, each containing a flip plate; a transfer mechanism adsorbs a kraft paper box and transfers it to the vacuum adsorption area, then converts it to an upright position; a pushing mechanism pushes a rectangular box to a predetermined position within the four-panel fold; two tearing mechanisms adsorb the corresponding adhesive strip at a right angle and tear it off; an upward flipping mechanism flips the flaps upward so that the cover flaps cover the ends of the four-panel fold; and two sealing mechanisms attach the flaps to the four-panel fold. This solution can automatically open the four-panel fold, automatically push the rectangular box into the four-panel fold, and automatically seal the ends of the four-panel fold, achieving automated packaging.

Description

Technical Field

[0001] This invention relates to the field of packaging technology, and more particularly to a rectangular box packaging device. Background Technology

[0002] Pipette tips are typically purchased in bulk and packaged in bags. To ensure standardized and safe use in experiments, laboratories must perform the following standardized procedures on pipette tips:

[0003] ①Preparation: Prepare a clean rectangular box with a perforated plate inside; prepare kraft paper and rubber bands;

[0004] ② Filling process: The experimenter inserts the bulk nozzles one by one into the mesh of the rectangular box, with each mesh accommodating one nozzle, until the box is full, and then closes the lid;

[0005] ③ Packaging and sterilization: Wrap rectangular boxes with kraft paper, secure them with rubber bands using a cross-tying method, and place them in sterilization equipment for standard sterilization procedures.

[0006] Existing problems: The current box packaging process relies entirely on manual operation, which has limitations such as efficiency bottlenecks and insufficient standardization. Therefore, an automated packaging device was developed to improve processing efficiency and the consistency of sterilization quality. Summary of the Invention

[0007] To address the shortcomings of existing technologies, this invention provides a rectangular box packaging device that enables automated packaging.

[0008] In order to achieve the objective of this invention, the following solution is proposed:

[0009] A rectangular box packaging device includes multiple kraft paper boxes, a platform, a transfer mechanism, a pushing mechanism, two paper tearing mechanisms, an upward flipping mechanism, and two sealing mechanisms.

[0010] Multiple kraft paper boxes are flat and stacked in a limiting frame. Each kraft paper box includes a four-fold panel and two flaps located at the bottom of each end. The four-fold panel is biased towards one side of the platform. Each flap has flaps on three sides. The top of each flap has adhesive and is attached to the same piece of adhesive paper.

[0011] The top surface of the platform is provided with a vacuum adsorption area, and there are two receiving slots that run vertically through the platform in the vacuum adsorption area. There are flaps in the receiving slots, and the inner side of the flaps is hinged to the platform. The top surface of the flaps is provided with multiple vacuum adsorption holes.

[0012] The transfer mechanism is located on the first support and is used to adsorb a kraft paper box and transfer it to the vacuum adsorption area. It is also used to adsorb the top surface of the four-panel folded surface and convert it into an upright position. The vacuum adsorption area is used to adsorb the bottom surface and fold of the four-panel folded surface, and the flip plate is used to adsorb the cover.

[0013] The pushing mechanism is located on the second support and is used to push the rectangular box at the predetermined position into the four-fold fold on the platform;

[0014] Two paper-tearing mechanisms are symmetrically arranged about the vacuum adsorption area to adsorb the corresponding adhesive paper at a right angle and tear off the adhesive paper. There is no adhesive flap at this right angle.

[0015] The flip-up mechanism is located below the platform, and its top is connected to a flip plate for flipping up so that the cover covers the end of the four-fold panel;

[0016] Two sealing mechanisms are symmetrically arranged about the vacuum adsorption area. The sealing mechanism includes a first linear stroke component, an inverted U-shaped plate, and multiple rollers. The first linear stroke component is connected to the outside of the U-shaped plate. Three suspension plates are provided on the inside of the U-shaped plate. The multiple rollers are respectively located on the corresponding suspension plates, and the positions of the multiple rollers correspond to the positions of the three folded pieces after they are flipped up. When the rollers move towards the folded pieces, they are used to stick the three folded pieces to the top surface and two sides of the four-folded surface, respectively.

[0017] The beneficial effects of this invention are as follows:

[0018] 1. Replace ordinary kraft paper with kraft paper boxes for holding rectangular gun head boxes; the structure of the kraft paper box is also different from that of ordinary packaging boxes. The kraft paper box in this solution has a cover at the end, and the cover has flaps on three sides. The top surface of the three flaps has adhesive and is pasted on the same piece of adhesive tape. In this way, the flaps can be used to paste and close the kraft paper box without the need for additional rubber bands for fixation.

[0019] 2. This solution can automatically open the four folds of the kraft paper box, automatically push the rectangular box into the four folds, automatically flip up the cover and close the ends of the four folds, and automatically stick the folds to the four folds, thus completing the packaging. Attached Figure Description

[0020] Figure 1 A structural diagram of the packaging device is shown;

[0021] Figure 2 A top view of the packaging unit is shown;

[0022] Figure 3 A top view of the platform is shown;

[0023] Figure 4 A top view of the platform, conveyor, spreading mechanism, and pushing mechanism is shown.

[0024] Figure 5 The right view of the platform, conveyor, spreading mechanism, and pushing mechanism is shown.

[0025] Figure 6 The structural diagram of the platform and sealing mechanism is shown;

[0026] Figure 7 A structural diagram of the sealing mechanism is shown;

[0027] Figure 8 A diagram of the expanded plate structure is shown;

[0028] Figure 9 A top view of a kraft paper box with adhesive tape is shown;

[0029] Figure 10 A top view of a kraft paper box with the adhesive tape torn off is shown;

[0030] Figure 11 The diagram shows the state of the suction plate transferring a kraft paper box onto the platform.

[0031] Figure 12 The diagram shows the state where the adsorption plate stands up with the four-section folded surface upright;

[0032] Figure 13 The diagram shows the state of a pusher plate pushing a rectangular box to the guide plate.

[0033] Figure 14 The diagram shows the state of the rectangular box being pushed into the four-fold fold and the push plate being reset.

[0034] Figure 15 The initial state diagram of the paper tearing mechanism is shown;

[0035] Figure 16 The diagram shows the state of the suction cup adsorbing the adhesive paper at a right angle;

[0036] Figure 17 The diagram shows the state of flipping upwards;

[0037] Figure 18 This diagram shows the state of the sealing mechanism about to operate after the flip-up mechanism has been flipped up.

[0038] Reference numerals: Kraft paper box-1, four-fold panel-11, cover-12, fold-out panel-13, adhesive tape-14, limiting frame-15, transfer mechanism-2, third linear stroke component-21, fourth linear stroke component-22, adsorption plate-23, platform-3, vacuum adsorption area-31, extension groove-311, receiving groove-32, flip plate-33, raised strip-34, base plate-35, guide groove-36, upward flipping mechanism-4, telescopic rod-41, support base-42, paper tearing mechanism-5, fifth linear stroke component-51, cantilever-5 11. Sixth linear stroke component - 52. Suction cup - 53. Pushing mechanism - 6. Push plate - 61. Seventh linear stroke component - 62. Sealing mechanism - 7. First linear stroke component - 71. U-shaped plate - 72. Roller - 73. Suspension plate - 74. Expanding plate - 75. Vertical plate - 751. First inclined plane - 7511. Horizontal plate - 752. Second inclined plane - 7521. Conveying table - 8. Inner window - 81. Outer window - 82. Spreading mechanism - 9. Second linear stroke component - 91. Base - 92. Guide plate - 93. Column - 931. Detailed Implementation

[0039] like Figure 1 , Figure 5 As shown, this embodiment provides a rectangular box packaging device, including multiple kraft paper boxes 1, a platform 3, a transfer mechanism 2, a pushing mechanism 6, two paper tearing mechanisms 5, an upward flipping mechanism 4, and two sealing mechanisms 7.

[0040] Specifically, multiple kraft paper boxes 1 are flat and stacked within the limiting frame 15, such as... Figure 9 , Figure 10 As shown, the kraft paper box 1 includes a four-panel fold 11 and two cover plates 12. The two cover plates 12 are respectively located on the bottom surfaces of both ends of the four-panel fold 11. It should be noted that the four surfaces of the four-panel fold 11 are the bottom surface, the top surface, and the two side surfaces. Therefore, for ease of description and distinction, the bottom surface of the four-panel fold 11 in this article refers to the bottom surface of the four-panel fold 11 when it is upright, and the top surface of the four-panel fold 11 refers to the top surface of the four-panel fold 11 when it is upright. Neither of these includes the side surfaces. Each of the three sides of the cover plate 12 has a flap 13. The cover plate 12 and the three flaps 13 form a "convex" shape. Figure 10 The top surfaces of the three folds 13 have adhesive and are attached to the same sheet of adhesive tape 14. Figure 9 The adhesive tape 14 completely covers the cover sheet 12 and the three folds 13. Note that there is no adhesive on the top surface of the cover sheet 12, and the adhesive tape 14 itself is also free of adhesive. The two right angles of the adhesive tape 14 on the side away from the four-fold fold 11 are suspended in the air. The suspended right angles make it easy to tear off the adhesive tape 14 later using the tearing mechanism 5.

[0041] Specifically, such as Figure 2 , Figure 3As shown, the top surface of the platform 3 is provided with a vacuum adsorption area 31. The vacuum adsorption area 31 is provided with two receiving grooves 32 that penetrate the platform 3 vertically. The receiving grooves 32 are provided with flaps 33. The inner side of the flaps 33 is hinged to the platform 3. The inner side of the flaps 33 refers to the side opposite to the two flaps 33. The top surface of the vacuum adsorption area 31 and the top surface of the flaps 33 are provided with multiple vacuum adsorption holes. The vacuum adsorption area 31 is used to adsorb the bottom surface of the four-fold folded surface 11 and the folded sheet 13 in subsequent steps. The flaps 33 are used to adsorb the cover sheet 12.

[0042] Specifically, such as Figure 1 As shown, the limiting frame 15 is located outside the platform 3, and the transfer mechanism 2 is located on the first support. It is used to adsorb a kraft paper box 1 inside the limiting frame 15 and transfer it to the vacuum adsorption area 31. It is also used to adsorb the top surface of the four-fold fold 11 and convert it into an upright form.

[0043] There are many ways to implement the transfer mechanism 2. In this embodiment, for example... Figure 1 As shown, the transfer mechanism 2 includes a third linear travel member 21, a fourth linear travel member 22, and an adsorption plate 23. The third linear travel member 21 is horizontally mounted above the limiting frame 15 and the platform 3. The third linear travel member 21 is connected to the vertical fourth linear travel member 22. The bottom of the fourth linear travel member 22 is connected to the adsorption plate 23, and the bottom surface of the adsorption plate 23 is provided with multiple vacuum adsorption holes. The third linear travel member 21 can be driven by a motor-driven lead screw to move the fourth linear travel member 22 horizontally; the fourth linear travel member 22 can be pneumatically telescopic to move the adsorption plate 23 vertically.

[0044] The transfer mechanism 2 is used as follows: The third linear stroke component 21 moves horizontally towards the direction of the limiting frame 15, moving the fourth linear stroke component 22 and the adsorption plate 23. The adsorption plate 23 stops when it is at a preset position above the limiting frame 15. The fourth linear stroke component 22 moves the adsorption plate 23 downwards, contacting and adsorbing a kraft paper box 1 before stopping. More precisely, at this point, the adsorption plate 23 adsorbs the top surface of the four-fold fold 11 and the two adhesive tapes 14. The fourth linear stroke component 22 moves the adsorption plate 23 upwards, stopping when the adsorbed kraft paper box 1 is slightly higher than the top surface of the platform 3. The third linear stroke component 21 moves horizontally towards the direction of the vacuum adsorption area 31, moving the fourth linear stroke component 22 and the adsorption plate 23. The kraft paper box 1 stops when it is located in the vacuum adsorption area 31. The fourth linear stroke component 22 moves the adsorption plate 23 downwards, pressing the kraft paper box 1 onto the vacuum adsorption area 31. This pressing step flattens the kraft paper box 1 and places it completely in the preset position of the vacuum adsorption area 31. The state at this point is as follows: Figure 11As shown; the vacuum adsorption zone 31 adsorbs the bottom surface of the four-panel folded surface 11 and the three flaps 13. The vacuum adsorption zone 31 does not adsorb the adhesive paper 14, and the flip plate 33 adsorbs the corresponding cover 12; the adsorption plate 23 adjusts the adsorption mode to adsorb only the top surface of the four-panel folded surface 11, and then, under the action of the third linear stroke component 21 and the fourth linear stroke component 22, the adsorption plate 23 tilts and moves upward in the direction of the limiting frame 15, thereby converting the four-panel folded surface 11 into an upright state, as shown in the figure. Figure 12 As shown.

[0045] It should be noted that, under normal circumstances, when the kraft paper box 1 is in a flat shape, the four-fold fold 11 can be biased towards one side of the platform 3 or away from the platform 3. In combination with the above-mentioned usage of the transfer mechanism 2, it can be seen that in this embodiment, the four-fold fold 11 must be biased towards one side of the platform 3 in order to move smoothly to the vacuum adsorption area 31 under the action of the transfer mechanism 2.

[0046] Specifically, such as Figure 1 As shown, the pushing mechanism 6 is located on the second support and is used to push the rectangular box at the predetermined position into the four-fold surface 11 on the platform 3.

[0047] like Figure 4 As shown, the conveyor table 8 is located at the outer end of the platform 3 and is used to convey the rectangular box to a predetermined position. At the predetermined position, the two side walls of the conveyor table 8 are respectively provided with an inner window 81 and an outer window 82. Figure 1 , Figure 4 As shown, the pushing mechanism 6 includes a seventh linear stroke member 62 and a push plate 61 located at its movable end. The push plate 61 is located at the outer window 82. The seventh linear stroke member 62 can be pneumatically telescopic.

[0048] The method of using the pushing mechanism 6 is as follows: As mentioned above, the adsorption plate 23 converts the four-fold fold 11 into an upright state; next, the conveyor table 8 conveys the rectangular box to the outer window 82 and stops it; the seventh linear stroke component 62 moves the push plate 61 horizontally, and the push plate 61 pushes the rectangular box towards the four-fold fold 11 until the rectangular box is pushed into the four-fold fold 11; the push plate 61 returns to the outer window 82.

[0049] Considering that the folding piece 13 and the adhesive tape 14 have a certain thickness, although it is on the order of millimeters, in order to ensure that the rectangular box can be smoothly pushed into the four-fold folding surface 11, the surface of the conveyor table 8 should preferably be slightly higher than the surface of the platform 3. Figure 4 As shown, a substrate 35 is provided on the top of the platform 3. The substrate 35 is located between the vacuum adsorption area 31 and the inner window 81. The bottom surfaces of the substrate 35 and the inner window 81 are flush with the table surface of the conveyor table 8.

[0050] More specifically, in order to more smoothly push the rectangular box on the conveyor table 8 into the four-fold fold 11, this embodiment takes the following measures: such as Figure 4 , Figure 5 , Figure 15 As shown, the device also includes a spreading mechanism 9, which includes a second linear travel member 91, a base 92, and two guide plates 93. The second linear travel member 91 is located at the bottom of the platform 3, and its movable end is connected to the base 92. The platform 3 has two guide grooves 36 that extend vertically through it, located on both sides of the base plate 35. The two guide plates 93 are located above the base plate 35, and are arranged in a "V" shape from the base plate 35 to the inner window 81. A column 931 is provided at the end of the guide plate 93 facing the conveyor table 8. The column 931 fits into the corresponding guide groove 36, and its bottom is rotatably connected to the base 92. A torsion spring is provided at the rotatable connection between the two. The second linear travel member 91 can be pneumatically telescopic to move the base 92 and the two guide plates 93 horizontally.

[0051] The operation method of the spreading mechanism 9 is as follows: the adsorption plate 23 converts the four-fold fold 11 into an upright state; next, the conveyor table 8 conveys the rectangular box to the outer window 82 and stops it; the seventh linear stroke component 62 moves the push plate 61 horizontally, and the push plate 61 pushes the rectangular box towards the four-fold fold 11 until the rectangular box is pushed to the two guide plates 93 and stops. The state at this time is as follows. Figure 13 As shown, the rectangular box does not compress the guide plate 93; then the seventh linear stroke member 62 and the second linear stroke member 91 operate synchronously, causing the push plate 61, the rectangular box, and the two guide plates 93 to move together toward the vacuum adsorption area 31. When the ends of the two guide plates 93 are inserted into the four-fold surface 11, the second linear stroke member 91 stops, and the seventh linear stroke member 62 continues to operate. The rectangular box first opens the two guide plates 93 and is then pushed into the four-fold surface 11. The push plate 61 first resets to the outer window 82, and then the two guide plates 93 reset to above the substrate 35.

[0052] Specifically, such as Figure 1 , Figure 15 As shown, the two paper-tearing mechanisms 5 are symmetrically arranged about the vacuum adsorption area 31. After the rectangular box is pushed to the four-fold fold 11, the paper-tearing mechanism 5 is used to adsorb the corresponding adhesive paper 14 at a right angle and tear off the adhesive paper 14.

[0053] like Figure 1 , Figure 15As shown, each paper-tearing mechanism 5 includes a fifth linear travel member 51, a sixth linear travel member 52, and a suction cup 53. The fifth linear travel member 51 is mounted above the platform 3 via a third bracket. More precisely, the fifth linear travel member 51 is mounted above the sealing mechanism 7. The fifth linear travel member 51 is connected to one end of the cantilever 511, and the bottom of the other end of the cantilever 511 is connected to the vertical sixth linear travel member 52. The bottom of the sixth linear travel member 52 is connected to the suction cup 53. Along the direction from the vacuum adsorption area 31 to the limiting frame 15, the two fifth linear travel members 51 are arranged in a "figure-eight" shape. The fifth linear travel member 51 can be driven by a motor-driven lead screw to move the sixth linear travel member 52 and the suction cup 53 horizontally. The horizontal movement trajectory of the suction cup 53 will pass through a right angle of the adhesive paper 14, and there is no adhesive flap 13 at this right angle. The sixth linear travel member 52 can be pneumatically telescopic to move the suction cup 53 vertically.

[0054] The paper-tearing mechanism 5 is used as follows: As mentioned earlier, the pusher plate 61 pushes the rectangular box into the four-fold fold 11, and then the pusher plate 61 returns to its original position at the outer window 82; next, the suction plate 23 stops suctioning the four-fold fold 11 and returns to its initial state, as shown in the image. Figure 14 As shown; the fifth linear travel member 51 moves horizontally to move the sixth linear travel member 52 and the suction cup 53 until the suction cup 53 is moved above the corresponding right angle of the corresponding adhesive tape 14, at which point the state is as follows. Figure 16 As shown; the sixth linear stroke member 52 moves the suction cup 53 downward, and the suction cup 53 contacts and adsorbs the right angle of the adhesive paper 14; under the action of the fifth linear stroke member 51 and the sixth linear stroke member 52, the suction cup 53 moves slightly upward, and then gradually peels off the adhesive paper 14.

[0055] It should be noted here that the adsorption plate 23 stops adsorbing the four-fold fold 11 and returns to its initial state. Then, the paper tearing mechanism 5 is used to tear off the adhesive paper 14. This design has two purposes: First, the rectangular box has been pushed into the four-fold fold 11, and the adsorption plate 23 no longer needs to adsorb the four-fold fold 11; Second, it prevents the adsorption plate 23 from obstructing the movement trajectory of the suction cup 53 during the paper tearing process.

[0056] Specifically, such as Figure 4 , Figure 5 As shown, the flipping mechanism 4 is located below the platform 3, and its top is connected to the flip plate 33 for flipping the flip plate 33 upwards. There are many ways to implement the flipping mechanism 4. In this embodiment, the flipping mechanism 4 includes two flipping components. Each flipping component includes a telescopic rod 41 and a support base 42. The top and bottom of the telescopic rod 41 are respectively hinged to the corresponding flip plate 33 and support base 42. The telescopic rod 41 can be pneumatically telescopic.

[0057] The method of using the flip-up mechanism 4 is as follows: As mentioned earlier, the suction cup 53 has removed the adhesive tape 14; next, the telescopic rod 41 flips up the flap 33, so that the cover 12 covers the end of the four-panel folded surface 11, and the flap 13 also flips up with the cover 12, at which point the state is as follows. Figure 17 As shown.

[0058] To ensure a smoother upward folding of the flap 13 along with the cover 12, the following measures are taken in this embodiment: Figure 3 , Figure 4 As shown, the top of the vacuum adsorption zone 31 is provided with multiple grooves 311, and the outer side and both ends of the flap 33 are provided with several protrusions 34. The top surface of the flap 33 is flush with the top surface of the protrusions 34, and the protrusions 34 are located in the corresponding grooves 311. In use, the telescopic rod 41 flips up the flap 33, so that the cover 12 covers the end of the four-section folded surface 11, and the protrusions 34 also flip the folded surface 13 up accordingly. The state at this time is as follows. Figure 17 As shown.

[0059] Specifically, such as Figure 1 , Figures 6-8 , Figure 18 As shown, the two sealing mechanisms 7 are symmetrically arranged about the vacuum adsorption zone 31. Each sealing mechanism 7 includes a first linear travel member 71, an inverted U-shaped plate 72, multiple rollers 73, and an expanding plate 75. The first linear travel member 71 is connected to the outside of the U-shaped plate 72 and can be pneumatically telescopic to horizontally move the U-shaped plate 72 towards the vacuum adsorption zone 31. Three suspension plates 74 are provided on the inner side of the U-shaped plate 72. Along the direction in which the rectangular box is pushed towards the vacuum adsorption zone 31, all three suspension plates 74 are inclined outwards, or in other words, the three suspension plates 74 are in an outward-expanding state. One end of each suspension plate 74 rotates... The U-shaped plate 72 is movably connected to the U-shaped plate 72. A torsion spring is provided at the rotatable connection between the two. The expansion plate 75 includes two vertical plates 751 and a horizontal plate 752 on its top. The bottom of the vertical plate 751 is fixedly mounted on the platform 3. The inner wall of the vertical plate 751 is provided with a first inclined surface 7511 on the side facing the vacuum adsorption area 31. The bottom surface of the horizontal plate 752 is provided with a second inclined surface 7521 on the side facing the vacuum adsorption area 31. The two first inclined surfaces 7511 and the second inclined surface 7521 are respectively closely attached to the corresponding suspension plates 74. Multiple rollers 73 are respectively provided on the corresponding suspension plates 74, and the positions of the multiple rollers 73 correspond to the positions after the three flaps 13 are flipped up.

[0060] The sealing mechanism 7 is used as follows: As mentioned above, the telescopic rod 41 flips up the flap 33, so that the cover 12 covers the end of the four-fold fold 11, and the flap 13 also flips up with the cover 12; next, the first linear travel member 71 moves the U-shaped plate 72 horizontally towards the flap 13, and the three suspension plates 74 move accordingly. The three suspension plates 74 will come together when they lose the squeezing force of the expansion plate 75. The so-called coming together does not mean that they are gathered together, but that the inner distance between the three suspension plates 74 is reduced slightly compared to the original outward expansion state. Then the roller 73 first contacts the corresponding flap 13, and then pastes the three flaps 13 to the top surface and two sides of the four-fold fold 11 respectively; after the flaps 13 are pasted, the first linear travel member 71 resets the U-shaped plate 72, and the three suspension plates 74 expand outward again under the action of the first inclined surface 7511 and the second inclined surface 7521 of the expansion plate 75.

[0061] Two points need to be clarified here:

[0062] First, in practical applications, if the outer side and both ends of the flap 33 are not provided with protrusions 34, then each suspension plate 74 can be provided with one roller 73; if the outer side and both ends of the flap 33 are provided with protrusions 34, then each suspension plate 74 is provided with at least two rollers 73. After the flap 33 is flipped up, the space between two adjacent rollers 73 corresponds to the position of the protrusions 34, preventing the protrusions 34 from obstructing the movement trajectory of the rollers 73 rolling the flap 13.

[0063] Second, a torsion spring is provided at the rotatable connection between the suspension plate 74 and the U-shaped plate 72. The first inclined surface 7511 and the second inclined surface 7521 of the expansion plate 75 put the three suspension plates 74 in an outward expansion state. The purpose of this design is to prevent the roller 73 from obstructing the movement trajectory of the guide plate 93 and the column 931. After the suspension plate 74 is freed from the force of the expansion plate 75, the inner distance between the three suspension plates 74 is reduced. When the roller 73 contacts the fold 13, it can form a rolling force, thereby making the fold 13 stick to the four-fold surface 11.

[0064] Instructions for use of packaging equipment:

[0065] The adsorption plate 23 first adsorbs a kraft paper box 1, and then moves the kraft paper box 1 to the vacuum adsorption zone 31; the fourth linear stroke component 22 moves the adsorption plate 23 downward, pressing the kraft paper box 1 onto the vacuum adsorption zone 31, at which point the state is as follows. Figure 11 As shown; the vacuum adsorption zone 31 adsorbs the bottom surface of the four-panel folded surface 11 and the three flaps 13, while the flip plate 33 adsorbs the corresponding cover plate 12; the adsorption plate 23 adjusts the adsorption mode to adsorb only the top surface of the four-panel folded surface 11, and then the adsorption plate 23 tilts upwards towards the direction of the limiting frame 15, thereby converting the four-panel folded surface 11 into an upright state, as shown in the figure. Figure 12 As shown;

[0066] The conveyor 8 transports the rectangular box to the outer window 82 and stops it; the pusher 61 pushes the rectangular box towards the four-fold fold 11 until it stops at the two guide plates 93, at which point the rectangular box is in the following state. Figure 13 As shown; then the pusher plate 61, the rectangular box, and the two guide plates 93 move together toward the vacuum adsorption area 31. When the ends of the two guide plates 93 are inserted into the four-fold surface 11, the pusher plate 61 continues to move. The rectangular box first opens the two guide plates 93 and is then pushed into the four-fold surface 11. The pusher plate 61 first resets to the outer window 82, and then the two guide plates 93 reset to above the substrate 35.

[0067] The adsorption plate 23 stops adsorbing the four-folded surface 11 and returns to its initial state, as shown below. Figure 14 As shown; the suction cup 53 moves to the position above the corresponding right angle of the adhesive tape 14, and its state at this time is as follows. Figure 16 As shown; the suction cup 53 contacts and adheres to the right angle of the adhesive tape 14; the suction cup 53 moves slightly upward and then gradually peels off the adhesive tape 14;

[0068] The telescopic rod 41 flips up the flap 33, causing the cover 12 to cover the end of the four-panel folded surface 11. The folded surface 13 also flips up along with the cover 12, resulting in the following state: Figure 17 As shown;

[0069] exist Figure 18 In this state, the U-shaped plate 72 moves horizontally towards the fold 13, and the three suspension plates 74 move and converge accordingly. The roller 73 first contacts the corresponding fold 13, and then pastes the three fold 13 to the top surface and two sides of the four-section fold 11 respectively. After the fold 13 is pasted, the U-shaped plate 72 and the three suspension plates 74 are reset, and the flip plate 33 flips down and resets.

[0070] The above embodiments are only used to illustrate the technical concept and features of the present invention, and are not intended to be unique or to limit the present invention. Those skilled in the art should understand that various changes or equivalent substitutions made to the present invention without departing from its scope are all within the protection scope of the present invention.

Claims

1. A rectangular box packaging device, characterized in that, include: Multiple kraft paper boxes (1) are flat and stacked in a limiting frame (15). Each box includes a four-fold panel (11) and two covers (12) located at the bottom of each end. The four-fold panel (11) is biased towards one side of the platform (3). Each of the three sides of the cover (12) is provided with a flap (13). The top surface of the three flaps (13) is covered with adhesive and is attached to the same adhesive paper (14). Platform (3) has a vacuum adsorption area (31) on its top surface. The vacuum adsorption area (31) has two receiving slots (32) that run vertically through the platform (3). The receiving slots (32) have flaps (33) inside. The flaps (33) are hinged to the platform (3) on their inner side. The top surface of the flaps (33) has multiple vacuum adsorption holes. The transfer mechanism (2) is located on the first support and is used to adsorb a kraft paper box (1) and transfer it to the vacuum adsorption area (31). It is also used to adsorb the top surface of the four-panel folded surface (11) and convert it into an upright form. The vacuum adsorption area (31) is used to adsorb the bottom surface of the four-panel folded surface (11) and the flap (13). The flip plate (33) is used to adsorb the cover (12). The pushing mechanism (6) is located on the second support and is used to push the rectangular box at the predetermined position into the four-fold fold (11) on the platform (3); Two paper-tearing mechanisms (5) are symmetrically arranged about the vacuum adsorption zone (31) to adsorb the corresponding adhesive paper (14) at a right angle and tear off the adhesive paper (14). There is no adhesive flap (13) at the right angle. The flip-up mechanism (4) is located below the platform (3), and its top is connected to the flip plate (33) for flipping up the flip plate (33) so that the cover plate (12) covers the end of the four-fold fold (11); Two sealing mechanisms (7) symmetrically arranged about the vacuum adsorption zone (31) include a first linear stroke component (71), an inverted U-shaped plate (72) and multiple rollers (73). The first linear stroke component (71) is connected to the outside of the U-shaped plate (72). Three suspension plates (74) are provided on the inside of the U-shaped plate (72). Multiple rollers (73) are respectively located on the corresponding suspension plates (74), and the positions of multiple rollers (73) correspond to the positions of the three folds (13) after they are flipped up. When the rollers (73) move toward the folds (13), they are used to make the three folds (13) stick to the top surface and two sides of the four-section folded surface (11) respectively. Along the direction in which the rectangular box is pushed to the four-folded surface (11), the three suspension plates (74) are all tilted outwards, and one end of the suspension plate (74) is rotatably connected to the U-shaped plate (72), and a torsion spring is provided at the rotatable connection between the two. The sealing mechanism (7) also includes an expansion plate (75), which includes two vertical plates (751) and a horizontal plate (752) on top of it. The bottom of the vertical plate (751) is fixed to the platform (3). The inner wall of the vertical plate (751) facing the vacuum adsorption area (31) has a first inclined surface (7511), and the bottom surface of the horizontal plate (752) facing the vacuum adsorption area (31) has a second inclined surface (7521). The two first inclined surfaces (7511) and the second inclined surface (7521) are respectively attached to the corresponding suspension plates (74). When the U-shaped plate (72) moves in the direction of the fold (13), the three suspension plates (74) will converge together when they lose the squeezing force of the expansion plate (75).

2. The rectangular box packaging device according to claim 1, characterized in that, It also includes a conveyor (8) for conveying rectangular boxes to a predetermined position. At the predetermined position, the two side walls of the conveyor (8) are respectively provided with an inner window (81) and an outer window (82). The push plate (61) of the push mechanism (6) is located at the outer window (82). The top of the platform (3) is provided with a substrate (35). The substrate (35) is located between the vacuum adsorption area (31) and the inner window (81). The bottom surfaces of the substrate (35) and the inner window (81) are flush with the table surface of the conveyor (8).

3. The rectangular box packaging device according to claim 2, characterized in that, It also includes a spreading mechanism (9), which includes a second linear stroke component (91), a base (92) and two guide plates (93). The second linear stroke component (91) is located at the bottom of the platform (3), and its movable end is connected to the base (92). The platform (3) is provided with two guide grooves (36) that run vertically through itself. The two guide grooves (36) are located on both sides of the substrate (35), and the two guide plates (93) are located above the substrate (35). From the substrate (35) to the inner window (81), the two guide plates (93) are distributed in a "figure-eight" shape. The end of the guide plate (93) facing the conveyor table (8) is provided with a column (931). The column (931) is fitted into the corresponding guide groove (36). The bottom of the column (931) is rotatably connected to the base (92), and a torsion spring is provided at the rotatable connection between the two. When the two guide plates (93) move toward the vacuum adsorption area (31), they are used to insert into the four-folded surface (11).

4. The rectangular box packaging device according to claim 1, characterized in that, The vacuum adsorption zone (31) is provided with multiple grooves (311) at the top. The outer side and both ends of the flip plate (33) are provided with several protrusions (34). The top surface of the flip plate (33) is flush with the top surface of the protrusions (34). The protrusions (34) are located in the corresponding grooves (311). Each suspension plate (74) is provided with at least two rollers (73). After the flip plate (33) flips up, the space between two adjacent rollers (73) corresponds to the position of the protrusions (34).

5. The rectangular box packaging device according to claim 1, characterized in that, The transfer mechanism (2) includes a third linear stroke component (21), a fourth linear stroke component (22), and an adsorption plate (23). The third linear stroke component (21) is horizontally mounted above the limiting frame (15) and the platform (3). The third linear stroke component (21) is connected to the vertical fourth linear stroke component (22). The bottom of the fourth linear stroke component (22) is connected to the adsorption plate (23). The bottom surface of the adsorption plate (23) is provided with multiple vacuum adsorption holes.

6. The rectangular box packaging device according to claim 1, characterized in that, The paper tearing mechanism (5) includes a fifth linear stroke component (51), a sixth linear stroke component (52), and a suction cup (53). The fifth linear stroke component (51) is mounted above the U-shaped plate (72) via a third bracket. The fifth linear stroke component (51) is connected to one end of the cantilever (511), and the bottom of the other end of the cantilever (511) is connected to the vertical sixth linear stroke component (52). The bottom of the sixth linear stroke component (52) is connected to the suction cup (53). Along the direction from the vacuum adsorption area (31) to the limiting frame (15), the two fifth linear stroke components (51) are in a "figure-eight" shape.

7. The rectangular box packaging device according to claim 1, characterized in that, The flipping mechanism (4) includes two flipping parts, each of which includes a telescopic rod (41) and a support seat (42). The top and bottom of the telescopic rod (41) are respectively hinged to the corresponding flip plate (33) and support seat (42).

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