Sealing and gluing device for packaging box

Abstract

The utility model provides a sealing and gluing device for a packaging box, which belongs to the technical field of packaging box processing and comprises a base, a forming groove is formed in the base, the base is connected with a mold through a lifting component, and a folding short plate and a folding long plate are slidably mounted in the forming groove. Push plates are slidably arranged on the inner walls of the two sides, provided with the short folding plates and the long folding plates, of the forming groove in a limiting mode. A rack is slidably arranged in the base in a limited mode, a first elastic piece is arranged between one end of the rack and the base, and a first slope block is fixedly arranged at the other end of the rack. A fixing plate is fixedly arranged on the folding long plate, a clamping block is slidably arranged in the fixing plate in a limited mode, and a second elastic piece is arranged between the clamping block and the fixing plate; and one end of the clamping block is in transmission clamping fit with the first slope block, and the other end of the clamping block is in transmission fit with the second slope block. And in the sliding reset process of the folding long plate, the push plate can automatically push the formed paperboard, automatic discharging is completed, and the overall transmission effect is better.

Description

Technical Field

[0001] This utility model belongs to the field of packaging box processing technology, specifically relating to a sealing and gluing device for packaging boxes. Background Technology

[0002] Packaging boxes are typically made of paper-based materials such as cardboard and micro-corrugated cardboard, but composite materials such as plastic, metal, and acrylic can also be used. Their core functions include protecting product integrity, conveying brand information, and enhancing product display. The packaging box manufacturing process first involves pressing indentations into designated areas of the box, then folding it along the indentations into a frame shape, and finally sealing the frame with glue. However, these operations often require manual labor, resulting in low processing efficiency and making them unsuitable for mass production.

[0003] A patent with publication number CN221605282U describes an automatic box-forming and framing device. This device includes a forming base, a forming groove, a folding short plate, a folding long plate, a first cylinder, a second cylinder, a gluing roller, a mold, a telescopic cylinder, a synchronous motor, and a pusher block. In operation, cardboard is placed on the forming base. The telescopic cylinder drives the mold to press down, automatically folding the bottom of the cardboard. Then, the first cylinder is activated, and the gluing roller on the folding short plate automatically applies glue while folding one side of the cardboard. Next, the second cylinder is activated, and the folding long plate folds the other side of the cardboard and adheres it to the glued side. Finally, the synchronous motor drives the pusher block to slide, pushing the folded cardboard frame out of the forming groove, completing the automatic unloading process.

[0004] However, after the cardboard is glued and sealed, the above solution still requires a synchronous motor to drive the sliding of the pusher block to unload the cardboard frame, resulting in a generally poor overall transmission efficiency. Furthermore, adding an extra drive source increases the complexity of the control system's construction, thus increasing manufacturing costs. Utility Model Content

[0005] To address the problems existing in the background art, this utility model provides a sealing and gluing device for packaging boxes.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A sealing and gluing device for packaging boxes includes a base with a forming groove and a mold connected to it via a lifting assembly. The mold is aligned with the forming groove. A folded short plate and a folded long plate are slidably installed within the forming groove, symmetrically positioned on the inner walls of both sides of the groove. Push plates are slidably positioned on the inner walls of both sides of the forming groove where the folded short plate and long plate are installed. A rack is slidably positioned horizontally within the base, with a first elastic element between one end of the rack and the base, and a first inclined block fixed at the other end. The rack is driven by a transmission component and engages with the push plates. A fixing plate is fixedly installed on the folded long plate, with a locking block slidably positioned within the fixing plate, and a second elastic element between the locking block and the fixing plate. A second inclined block is fixedly installed within the base, with one end of the locking block engaging with the first inclined block and the other end engaging with the second inclined block.

[0008] Furthermore, the lifting assembly includes a fixed frame, which is fixedly installed on the top of the base. A first sliding groove is opened in the fixed frame, and a first lead screw is rotatably installed in the first sliding groove. The mold is threadedly engaged with the first lead screw and also has a limiting sliding engagement with the first sliding groove. A motor is fixedly installed on the top of the fixed frame, and the output shaft of the motor is coaxially and fixedly connected to the top of the first lead screw.

[0009] Furthermore, a first clearance groove and a second clearance groove are formed in the base. A first electric push rod is fixedly installed in the first clearance groove, and a second electric push rod is fixedly installed in the second clearance groove. The telescopic shaft of the first electric push rod is fixedly connected to the folding short plate, and the telescopic shaft of the second electric push rod is fixedly connected to the folding long plate.

[0010] Furthermore, a glue-applying roller is rotatably installed inside the folded short plate, a glue-applying assembly acting on the glue-applying roller is provided above the folded short plate, and a rubber pad is installed at the bottom front end of the folded long plate.

[0011] Furthermore, the glue application assembly includes a glue storage box, which is fixedly mounted on the top of the folded short plate. A flow channel is opened at the bottom of the glue storage box, and heating plates are provided on both sides of the flow channel. The bottom of the heating plates is in slight contact with the glue application roller.

[0012] Furthermore, the inner walls on both sides of the forming groove where the folded short plate and the folded long plate are installed are provided with second sliding grooves. Each second sliding groove is equipped with a second lead screw that is rotatably mounted and a slider that is threadedly engaged with the second lead screw that is limited and slidably mounted. The slider and the push plate are fixedly connected in a one-to-one correspondence.

[0013] Furthermore, the transmission component includes a rotating shaft, with two rotating shafts rotatably arranged inside the base. Each rotating shaft has a gear and a driving wheel fixedly mounted on its outer surface, and both gears mesh with a rack for transmission. Two driven wheels are rotatably arranged inside the base, each driven wheel corresponding to both the driving wheel and the second lead screw. Each driven wheel is driven by a belt and fixedly mounted on the outer surface of the corresponding second lead screw.

[0014] Furthermore, the first elastic element includes a first spring, the extension and retraction direction of the first spring is the same as the sliding direction of the rack, one end of the first spring is fixedly connected to the base, and the other end is fixedly connected to the rack.

[0015] Furthermore, the second elastic element includes a second spring, a fixed post is fixedly disposed inside the fixed plate, and a locking block is slidably sleeved on the outer surface of the fixed post; the second spring is sleeved on the fixed post, one end of the second spring is fixedly connected to the fixed plate, and the other end is fixedly connected to the locking block.

[0016] This application has the following beneficial effects:

[0017] During the sliding reset of the folding long board, the pusher plate will automatically push the formed cardboard, causing the cardboard to detach from the forming groove and complete the automatic feeding. The overall transmission effect is better, and no additional drive source is needed in the process, thereby reducing manufacturing costs and reducing the construction difficulty of the control system. Attached Figure Description

[0018] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily understood by reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a cross-sectional view of the base of this utility model;

[0021] Figure 3 This is a utility model Figure 2 A magnified view of a portion of point A in the middle;

[0022] Figure 4 This is a utility model Figure 2 A magnified view of a portion of point B in the middle;

[0023] Figure 5 This is a schematic diagram of the connection structure between the fixed plate and the folding long plate of this utility model;

[0024] Figure 6This is a utility model Figure 5 A magnified view of a portion of point C in the middle;

[0025] Figure 7 This is a utility model Figure 5 A magnified view of a portion of point D in the middle;

[0026] Figure 8 This is a utility model Figure 5 A magnified view of a portion of point E in the middle;

[0027] Figure 9 This is a schematic diagram of the belt structure of this utility model;

[0028] Figure 10 This is a utility model Figure 9 A magnified view of a portion of point F in the middle;

[0029] Figure 11 This is a utility model Figure 9 A magnified view of a portion of point G in the middle.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Base; 2. Fixing frame; 3. Positioning plate; 4. Mold; 5. Motor; 6. First slide rail; 7. First lead screw; 8. Forming groove; 9. Second slide rail; 10. Push plate; 11. Glue storage box; 12. First clearance groove; 13. Folding short plate; 14. First electric push rod; 15. Folding long plate; 16. Second clearance groove; 17. Second electric push rod; 18. Heating plate; 19. Glue coating roller; 20. Slider; 21. Second lead screw; 22. Fixed plate; 23. Third clearance groove; 24. Fourth clearance groove; 25. Rack; 26. First spring; 27. Gear; 28. First inclined block; 29. ​​Third slide groove; 30. Locking block; 31. Fixed column; 32. Second spring; 33. Through hole; 34. Second inclined block; 35. Driving wheel; 36. Belt; 37. Fifth clearance groove; 38. Driven wheel; 39. Rotating shaft. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0033] like Figures 1-11As shown, the technical solution adopted by this utility model is as follows: a sealing and gluing device for packaging boxes, including a base 1, the top of the base 1 is provided with a forming groove 8, and a mold 4 is connected to it through a lifting component. The mold 4 is aligned with the forming groove 8, and a positioning plate 3 is fixedly installed on the base 1.

[0034] The lifting assembly includes a fixed frame 2, which is fixedly mounted on the top of the base 1. A first sliding groove 6 is formed within the fixed frame 2. A limiting block (not shown in the figure) is slidably positioned within the first sliding groove 6, and a first lead screw 7 is rotatably mounted therein. The limiting block is both fixedly connected to the mold 4 and threadedly engaged with the first lead screw 7. A motor 5 is fixedly mounted on the top of the fixed frame 2. The output shaft of the motor 5 extends rotatably into the first sliding groove 6, and the output shaft of the motor 5 is coaxially and fixedly connected to the top of the first lead screw 7.

[0035] Folded short plate 13 and folded long plate 15 are slidably installed in the molding groove 8 along the horizontal direction. The folded short plate 13 and folded long plate 15 are symmetrically arranged on the inner walls of both sides of the molding groove 8.

[0036] A first clearance groove 12 and a second clearance groove 16 are provided in the base 1. A first electric push rod 14 is fixedly installed in the first clearance groove 12, and a second electric push rod 17 is fixedly installed in the second clearance groove 16. The telescopic shaft of the first electric push rod 14 is fixedly connected to the folding short plate 13, and the telescopic shaft of the second electric push rod 17 is fixedly connected to the folding long plate 15.

[0037] A glue-applying roller 19 is rotatably installed inside the folded short plate 13. A glue-applying assembly that acts on the glue-applying roller 19 is provided above the folded short plate 13. A rubber pad is installed at the bottom front end of the folded long plate 15.

[0038] The adhesive application assembly includes an adhesive storage box 11, which is fixedly mounted on the top of the folded short plate 13. A flow channel is formed at the bottom of the adhesive storage box 11, and heating plates 18 are provided on both sides of the flow channel. The bottom of the heating plates 18 is in slight contact with the adhesive application roller 19. The heating plates 18 are existing technology and will not be described in detail in this solution. During the rolling process of the adhesive application roller 19, the adhesive in the adhesive storage box 11 is applied to the surface of the adhesive application roller 19 through the flow channel, while the heating plates 18 prevent the adhesive from solidifying.

[0039] like Figures 4-5 As shown, the inner walls of both sides of the forming groove 8, where the folded short plate 13 and the folded long plate 15 are installed, are provided with second sliding grooves 9. Each second sliding groove 9 contains both a rotatable second lead screw 21 and a slider 20 that is threadedly engaged with the second lead screw 21. Push plates 10 are fixedly installed on the opposing sides of the two sliders 20, and the two push plates 10 are symmetrically arranged. The push plates 10 slide under the constraint of the second sliding grooves 9.

[0040] like Figures 6-7As shown, a fourth clearance groove 24 and a third sliding groove 29 are provided in the base 1. Both the fourth clearance groove 24 and the third sliding groove 29 are arranged in the horizontal direction. A rack 25 is slidably installed in the third sliding groove 29. A first elastic element is provided between one end of the rack 25 and the base 1, and a first inclined block 28 is fixedly provided at the other end of the rack 25. The rack 25 is driven by the push plate 10 through a transmission element.

[0041] The transmission components include rotating shafts 39. Two rotating shafts 39 are rotatably mounted in the fourth clearance groove 24. Each rotating shaft 39 has a gear 27 fixedly mounted on its outer surface and a driving wheel 35 fixedly mounted on its outer surface. Both gears 27 mesh with the rack 25 for transmission. Two fifth clearance grooves 37 are provided on the base 1. A driven wheel 38 is rotatably mounted in each fifth clearance groove 37. The driven wheel 38 corresponds one-to-one with the driving wheel 35 and one-to-one with the second lead screw 21. Each driven wheel 38 is driven by a belt 36 and is fixedly mounted on the outer surface of the corresponding second lead screw 21.

[0042] The first elastic element includes a first spring 26, which is located in the third groove 29. The extension and retraction direction of the first spring 26 is the same as the sliding direction of the rack 25. One end of the first spring 26 is fixedly connected to the base 1, and the other end is fixedly connected to the rack 25.

[0043] In addition, a third clearance groove 23 is provided on the base 1, which is connected to a fourth clearance groove 24. A fixing plate 22 is slidably installed in the third clearance groove 23, and the fixing plate 22 is fixedly connected to the folded long plate 15. A through hole 33 is provided on the fixing plate 22, and a locking block 30 is slidably installed in the through hole 33 along the vertical direction. A second elastic element is provided between the locking block 30 and the fixing plate 22.

[0044] The second elastic element includes a second spring 32, a fixing post 31 is fixedly installed inside the through hole 33, and a locking block 30 is slidably sleeved on the outer surface of the fixing post 31. The second spring 32 is sleeved on the fixing post 31, one end of the second spring 32 is fixedly connected to the fixing plate 22, and the other end is fixedly connected to the locking block 30.

[0045] The base 1 has a second inclined block 34 fixedly installed inside it. One end of the locking block 30 is engaged with the first inclined block 28, and the other end is engaged with the second inclined block 34.

[0046] Working principle: In use, place the cardboard between the positioning plates 3 above the base 1, and above the forming groove 8. Start the motor 5, and drive the first lead screw 7 to rotate through the output shaft of the motor 5. This, in turn, uses the limiting block to drive the mold 4 to press down, squeezing the cardboard into the forming groove 8, thereby causing the bottom of the cardboard to fold automatically.

[0047] Subsequently, the first electric push rod 14 and the heating plate 18 are activated. The glue in the glue storage box 11 is applied to the surface of the glue application roller 19. The telescopic shaft of the first electric push rod 14 pushes the folding short plate 13 outward. During the movement, the folding short plate 13 contacts one side of the packaging box and folds it. At the same time, the glue application roller 19 contacts the packaging box and rolls, thereby applying glue to the cardboard, realizing automatic glue application.

[0048] After the glue application is completed, the telescopic shaft of the first electric push rod 14 is retracted, so that the folding short plate 13, the glue storage box 11 and the glue application roller 19 are reset.

[0049] Then, the second electric push rod 17 is activated, and the folding long plate 15 is pushed outward by the telescopic shaft of the second electric push rod 17. During the movement of the folding long plate 15, it will contact the other side of the packaging box and fold it, so that the un-glued side of the packaging box is attached to the glued side of the packaging box. At the same time, the packaging box can be squeezed by the rubber pad to achieve adhesion and fixation, and finally complete the folding frame operation.

[0050] At the same time, as the folding long plate 15 moves, it will also drive the fixed plate 22 to move synchronously, as in the initial state. Figure 8 As shown, the locking block 30 is located above the second inclined block 34 at this time. As the fixing plate 22 moves, the right side of the locking block 30 gradually disengages from the second inclined block 34 and moves to the bottom of the through hole 33 under the elastic action of the second spring 32.

[0051] As the fixing plate 22 continues to move, the left side of the locking block 30 gradually contacts the inclined surface of the first inclined block 28, causing the locking block 30 to rise against the elastic force of the second spring 32. After the locking block 30 passes the inclined surface of the first inclined block 28, the locking block 30 will move to the bottom of the through hole 33 under the elastic action of the second spring 32, thereby making the locking block 30 and the first inclined block 28 engage with each other.

[0052] After the frame is folded, the telescopic shaft of the second electric push rod 17 is retracted, which drives the folded long plate 15 back to its initial position. During this process, the fixing plate 22 will cause the locking block 30 to slide to the right, so that the rack 25 overcomes the elastic force of the first spring 26 and slides to the right, thereby driving the gear 27 to rotate.

[0053] The rotation of gear 27 drives the drive wheel 35 to rotate via the rotating shaft 39, which in turn drives the second lead screw 21 to rotate via the belt 36 and the driven wheel 38. The second lead screw 21 drives the push plate 10 to slide via the slider 20, thereby pushing the cardboard after the frame is folded out of the forming groove 8, realizing automatic feeding.

[0054] As the fixed plate 22 continues to move, the locking block 30 will contact the second inclined block 34, causing the locking block 30 to move upward against the elastic force of the second spring 32, thereby releasing the locking block 30 from the first inclined block 28, causing the rack 25 to reset under the pull of the first spring 26, thereby causing the gear 27 to rotate in the opposite direction, and then causing the push plate 10 to return to the initial position, facilitating the processing operation of the next paper box.

[0055] Finally, the output shaft of the control motor 5 is reversed, so that the mold 4 returns to its initial position.

[0056] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sealing and gluing device for packaging boxes, comprising a base (1), wherein the base (1) has a forming groove (8) and is connected to a mold (4) via a lifting assembly, the mold (4) being aligned with the forming groove (8), characterized in that, Folded short plate (13) and folded long plate (15) are slidably installed in the forming groove (8). The folded short plate (13) and folded long plate (15) are symmetrically arranged on the inner walls of both sides of the forming groove (8). Push plates (10) are slidably installed on the inner walls of both sides of the forming groove (8) where the folded short plate (13) and folded long plate (15) are installed. A rack (25) is slidably installed in the base (1) in the horizontal direction. A first elastic element is provided between one end of the rack (25) and the base (1), and a second elastic element is fixedly installed at the other end. An inclined block (28) and a rack (25) are connected to a push plate (10) via a transmission component; a fixed plate (22) is fixedly installed on the folded long plate (15), and a locking block (30) is slidably installed inside the fixed plate (22), with a second elastic component between the locking block (30) and the fixed plate (22); a second inclined block (34) is fixedly installed inside the base (1), with one end of the locking block (30) engaging with the first inclined block (28) and the other end engaging with the second inclined block (34).

2. The sealing and gluing device for packaging boxes according to claim 1, characterized in that, The lifting assembly includes a fixed frame (2), which is fixedly installed on the top of the base (1). A first slide groove (6) is opened in the fixed frame (2), and a first lead screw (7) is rotatably installed in the first slide groove (6). The mold (4) is threadedly engaged with the first lead screw (7) and also has a limiting sliding engagement with the first slide groove (6). A motor (5) is fixedly installed on the top of the fixed frame (2), and the output shaft of the motor (5) is coaxially fixedly connected to the top of the first lead screw (7).

3. The sealing and gluing device for packaging boxes according to claim 1, characterized in that, The base (1) has a first clearance groove (12) and a second clearance groove (16). A first electric push rod (14) is fixedly installed in the first clearance groove (12), and a second electric push rod (17) is fixedly installed in the second clearance groove (16). The telescopic shaft of the first electric push rod (14) is fixedly connected to the folding short plate (13), and the telescopic shaft of the second electric push rod (17) is fixedly connected to the folding long plate (15).

4. The sealing and gluing device for packaging boxes according to claim 1, characterized in that, A glue-applying roller (19) is rotatably arranged inside the folded short plate (13), and a glue-applying assembly acting on the glue-applying roller (19) is provided above the folded short plate (13). A rubber pad is installed at the bottom front end of the folded long plate (15).

5. A sealing and gluing device for packaging boxes according to claim 4, characterized in that, The glue application assembly includes a glue storage box (11), which is fixedly installed on the top of the folded short plate (13). A flow channel is opened at the bottom of the glue storage box (11), and heating plates (18) are provided on both sides of the flow channel. The bottom of the heating plates (18) is in slight contact with the glue application roller (19).

6. A sealing and gluing device for packaging boxes according to claim 1, characterized in that, The forming groove (8) is equipped with folded short plate (13) and folded long plate (15) on both sides of the inner wall, and a second sliding groove (9) is provided. A second lead screw (21) is rotatably set in each second sliding groove (9), and a slider (20) that is threadedly engaged with the second lead screw (21) is limited and slidably set in each second sliding groove (9). The slider (20) is fixedly connected to the push plate (10) one by one.

7. A sealing and gluing device for packaging boxes according to claim 6, characterized in that, The transmission component includes a rotating shaft (39). Two rotating shafts (39) are rotatably arranged inside the base (1). The outer surface of each rotating shaft (39) is fixedly fitted with both a gear (27) and a driving wheel (35). Both gears (27) mesh with the rack (25) for transmission. Two driven wheels (38) are rotatably arranged inside the base (1). The driven wheels (38) correspond one-to-one with the driving wheel (35) and one-to-one with the second lead screw (21). Each driven wheel (38) is connected to the corresponding driving wheel (35) by a belt (36) and is fixedly fitted on the outer surface of the corresponding second lead screw (21).

8. A sealing and gluing device for packaging boxes according to claim 1, characterized in that, The first elastic element includes a first spring (26), the extension and retraction direction of the first spring (26) is the same as the sliding direction of the rack (25), one end of the first spring (26) is fixedly connected to the base (1), and the other end is fixedly connected to the rack (25).

9. A sealing and gluing device for packaging boxes according to claim 1, characterized in that, The second elastic element includes a second spring (32), a fixing post (31) is fixedly installed inside the fixing plate (22), and a locking block (30) is slidably sleeved on the outer surface of the fixing post (31); the second spring (32) is sleeved on the fixing post (31), one end of the second spring (32) is fixedly connected to the fixing plate (22), and the other end is fixedly connected to the locking block (30).

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