A paper box edge-flipping and shaping device

Abstract

This invention discloses a paper box edge-folding and shaping device, including a frame, a material picking device mounted on the frame, a sorting and conveying device, and an edge-folding forming device. An upper support and two symmetrically arranged side plates are fixed above the frame. The material picking device includes a lifting mechanism mounted at the front end of the frame, a lifting platform driven by the lifting mechanism, and a suction cup mechanism mounted on the lifting platform. The sorting and conveying device includes a conveying mechanism and a sorting mechanism symmetrically arranged on the two side plates, and a first sensor mounted on the side plates. The edge-folding forming device includes a pressing mechanism mounted on the upper support, an inner support mold driven by the pressing mechanism, a positioning mechanism located below the inner support mold, and a second sensor located in front of the positioning mechanism. This invention achieves automatic sorting and automatic pressing of the folded edges of the paper box, improving efficiency and ensuring the pressing effect of the folded edges.

Description

Technical Field

[0001] This invention relates to the field of paper box manufacturing technology, and more specifically to a paper box edge-folding and shaping device. Background Technology

[0002] Currently, the more refined gift boxes produced in China have very sharp folded edges and corners. To achieve this, manufacturers groove the areas where folding is needed and then glue the edges together. However, this folding process is mainly manual. The procedure involves manually folding the edge, applying glue, and then pressing it onto the box surface, allowing it to cure over time. This manual operation is not only cumbersome but also results in insufficient pressure due to manual handling, failing to meet quality requirements. Furthermore, workers' fingers easily tire during this process, making continuous work difficult and leading to low efficiency. Therefore, there is a need for a simple, easy-to-operate, and automated folding and pressing device for paper boxes. Summary of the Invention

[0003] Based on this, and in response to the above-mentioned technical problems, the present invention provides a paper box edge-folding and shaping device.

[0004] The objective of this invention can be achieved through the following technical solutions:

[0005] A paper box edge-forming device includes a frame, a picking device mounted on the frame for picking up paper boxes, a paper box sorting and conveying device for sorting and conveying the paper boxes, and an edge-forming device for processing the paper box edges; an upper support and two symmetrically arranged side plates are fixed above the frame; the edge-forming device includes a pressing mechanism mounted on the upper support, an inner support mold driven by the pressing mechanism, and a positioning mechanism located below the inner support mold;

[0006] The inner support mold includes a support block, a pressure plate located below the support block for pressing the folded edge of the cardboard box downwards first, and an inner support block assembly hinged to the left and right sides of the support block for pushing the folded edge to adhere it to the inner wall of the cardboard box later.

[0007] The positioning mechanism includes a drive assembly symmetrically mounted on two side plates, a push plate driven by the drive assembly, and right-angle positioning blocks located at both ends of the inner side of the push plate for positioning the four corners of the outer side of the paper box.

[0008] As a further embodiment of the present invention: the inner support mold further includes a cover plate, a flange sleeve and a shaft. The flange sleeve is fixed on the upper surface of the cover plate. The cover plate is located above the support block. The flange sleeve has a through flange hole. The cover plate is provided with a through hole communicating with the flange hole. One end of the shaft is fixed on the output end of the pressing mechanism, and the other end passes through the flange hole, and after passing through the through hole, it is connected to the support block.

[0009] As a further aspect of the present invention: the front and rear ends of the support block are provided with vertical sliding grooves, and the cover plate is provided with a through groove at the position corresponding to the sliding groove. The pressure plate passes through the sliding groove and the through groove, and the pressure plate is provided with a stop to prevent the pressure plate from slipping.

[0010] As a further aspect of the present invention: the inner support block group is composed of multiple spaced inner support blocks, each inner support block being hinged to the support block by two connecting rods, wherein one end of the upper connecting rod is hinged to the upper end of the inner support block and the other end is hinged to the upper edge of the support block, and one end of the lower connecting rod is hinged to the lower end of the inner support block and the other end is hinged to the lower edge of the support block, thereby forming a quadrilateral linkage mechanism.

[0011] As a further aspect of the present invention: the push plate has a groove, and a bolt is provided in the groove. The bolt fixes the right-angle positioning block to the push plate. Loosening the bolt and moving the right-angle positioning block can adjust the distance between the two right-angle positioning blocks on the same side.

[0012] As a further aspect of the present invention: the material handling device includes a first lifting mechanism installed in front of the frame, a lifting platform driven by the first lifting mechanism, and a suction cup mechanism installed on the lifting platform.

[0013] As a further aspect of the present invention: the suction cup mechanism includes a support rod installed on the lifting platform, a support plate disposed above the support rod, and a suction cup disposed on the upper surface of the support plate.

[0014] As a further aspect of the present invention: the sorting and transmission device includes a transmission mechanism and a sorting mechanism symmetrically arranged on both side plates, and a first sensor installed on one of the side plates.

[0015] As a further embodiment of the present invention: each of the transmission mechanisms includes a driving wheel and a driven wheel installed at both ends of the inner side of the side plate, a chain is fitted on the driving wheel and the driven wheel, a push block is engaged on the chain, the support rail is located above the chain, a motor is installed on one of the side plates, and the motor is connected to the two driving wheels through a connecting shaft.

[0016] As a further embodiment of the present invention: the sorting mechanism includes a first baffle, a guide plate and a guide rod. The first baffle is installed above the front of the side plate, and the guide plate and the guide rod are arranged sequentially above the first baffle along the paper box conveying direction.

[0017] As a further aspect of the present invention: the guide plate has an outwardly folded guide portion, and each guide rod includes a first inclined section that is inclined outward at the front, a straight section in the middle, and a second inclined section that is inclined inward at the rear.

[0018] As a further embodiment of the present invention: a limiting device is provided on one of the side plates and behind the flanging forming device, the limiting device including a second lifting mechanism installed on the side plate and a stop block driven by the second lifting mechanism.

[0019] As a further aspect of the present invention, a second baffle is installed above the rear of each of the side plates.

[0020] The beneficial effects of this invention are: it realizes the automatic sorting of the folded edges of the paper box and the final automatic pressing and shaping of the folded edges of the paper box, which improves efficiency and ensures the pressing effect of the folded edges. Attached Figure Description

[0021] The invention will now be further described with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the structure of a paper box edge-flipping and shaping device according to the present invention;

[0023] Figure 2 This is a schematic diagram of the material handling device of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the flange forming device of the present invention;

[0025] Figure 4 This is a schematic diagram of the internal support mold of the present invention;

[0026] Figure 5 This is a schematic diagram of the structure of the present invention before the pressure plate contacts the bottom surface of the cardboard box;

[0027] Figure 6 This is a schematic diagram of the structure of the present invention after the pressure plate comes into contact with the bottom surface of the cardboard box;

[0028] Figure 7 This is a schematic diagram of the structure of the slide groove of the present invention;

[0029] Figure 8 This is a schematic diagram of the limiting device of the present invention. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1As shown, the present invention is a paper box edge-folding and shaping device, including a frame 10, a material picking device 20 disposed on the frame 10, a sorting and conveying device 30, and an edge-folding forming device 40.

[0032] Two axially extending side plates 11 are symmetrically arranged above the frame 10. The front ends of the side plates 11 extend out of the frame 10. The upper bracket 12 is longitudinally fixed above the frame 10.

[0033] Combination Figure 2 As shown, the material handling device 20 is fixed in front of the frame 10 and located between the two side plates 11. It includes a first lifting mechanism 21 installed in front of the frame 10, a lifting platform 22 driven by the first lifting mechanism 21, and a suction cup mechanism 23 installed on the lifting platform. The first lifting mechanism 21 can be an electric lifting mechanism, a cylinder lifting mechanism, or a hydraulic lifting mechanism. In this embodiment, the first lifting mechanism 21 is driven by a cylinder. The carton flanging and shaping device is installed below the folding machine. The material handling device 20 is used to transfer the carton 50 in the forming cavity 9 of the folding machine to the next process.

[0034] The suction cup mechanism 23 includes a support rod 24 mounted on the lifting platform 22 and a support plate 25 located above the support rod 24. The upper surface of the support plate 25 is provided with suction cups 26.

[0035] During operation, the first lifting mechanism 21 drives the lifting platform 22 to rise, along with the suction cup mechanism 23, until the suction cup 26 contacts the bottom surface of the cardboard box 50 inside the forming cavity 9 of the folding machine, and the suction cup 26 holds the cardboard box 50 in place. The first lifting mechanism 21 then drives the lifting platform 22 to descend, bringing the cardboard box 50 down, and finally placing the cardboard box 50 onto the guide rail 31. Due to the support plate 25, the cardboard box 50 does not wobble during descent, ensuring that it lands stably on the guide rail 31. The cardboard box 50 has grooves where the folded edges need to be folded; in this case, the folded edges 51 of the cardboard box 50 are vertically upward.

[0036] The sorting and conveying device 30 includes a conveying mechanism 32 and a sorting mechanism 33 symmetrically arranged on the two side plates 11.

[0037] Each transmission mechanism 32 includes a drive wheel 321 and a driven wheel 322 mounted on both ends of the inner side of the side plate 11. A chain 323 is fitted onto the drive wheel 321 and the driven wheel 322. A support rail 31 is positioned above the chain 323. A motor 324 is mounted on one of the side plates 11, and the motor 324 is connected to the two drive wheels 321 via a connecting shaft 325. A pusher block 326 is also engaged on the chain 323. Thus, driven by the motor 324, the two drive wheels 321 rotate synchronously, driving the corresponding driven wheel 322 to rotate passively via the corresponding chain 323. The pusher block 326 on the chain 323 pushes the cardboard box 50 along the support rail 31 towards the flanging forming device 40. Furthermore, the chain conveying can employ a fixed-length or non-fixed-length conveying method. Here, a fixed-length method is used, meaning the chain travels the same distance each time. When setting the position of push block 326, push block 326 is set slightly further back, thereby increasing compatibility with paper box lengths of 50.

[0038] The sorting mechanism 33 includes a first baffle 34, a guide plate 35, and a guide rod 36.

[0039] The first baffle 34 is installed above the front of the side plate 11. The guide plate 35 and the guide rod 36 are arranged sequentially above the first baffle 34 along the paper box conveying direction.

[0040] The guide plate 35 has an outward folding guide portion. Since the cardboard box 50 has a groove, the folded edge 51 may tilt outward, and the guide plate 35 can prevent the folded edge 51 from tilting outward.

[0041] Both guide rods 36 include a first inclined section 361 that slopes outward at the front, a straight section 362 in the middle, and a second inclined section 363 that slopes inward at the rear. Specifically, the first inclined section 361 of the right guide rod 36 slopes to the right, and the second inclined section 363 slopes to the left. The first inclined section 361 of the left guide rod 36 slopes to the left, and the second inclined section 363 slopes to the right. Thus, the first inclined sections 361 of the two guide rods 36 form a guide channel with the inlet decreasing in size, the two straight sections 362 form a narrow channel, and the two second inclined sections 363 form an outlet with the inlet decreasing in size, thereby forcing the folding edge 51 of the cardboard box 50 to fold inward.

[0042] The first sensor 37 is mounted on the first baffle 34 of one of them. When the first sensor 37 senses the paper box 50 on the guide rail 31, the transmission mechanism 32 is activated, and the pusher block 326 on the chain 323 pushes the paper box 50 to be conveyed below the flanging forming device 40.

[0043] Combination Figure 3 and Figure 4As shown, the flanging forming device 40 includes a pressing mechanism 41 mounted on the upper support 12, an inner support mold 42 driven by the pressing mechanism 41, and a positioning mechanism 43 located below the inner support mold 42. The pressing mechanism 41 can be electrically lifted, pneumatically lifted, or hydraulically lifted. In this embodiment, the pressing mechanism 41 is pneumatically driven.

[0044] The positioning mechanism 43 includes a drive assembly 431 symmetrically mounted on two side plates 11 and a push plate 432 driven by the drive assembly 431. Right-angle positioning blocks 433 are provided at both ends of the inner side of the push plate 432. In this embodiment, the drive assembly 431 is driven by a cylinder.

[0045] The push plate 432 has a groove 434, through which bolts pass to fix the right-angle positioning block 433 to the push plate 432. Thus, when the length of the cardboard box 50 changes, the bolts are loosened, and the right-angle positioning block 433 is moved forward or backward as needed. After adjustment, the bolts are tightened.

[0046] The second sensor is mounted on one of the side plates 11 and located in front of the positioning mechanism 43. When the second sensor detects the cardboard box, the transmission mechanism 32 stops and the positioning mechanism 43 starts. The drive assembly 431 drives the push plate 432 to move towards the cardboard box, and the four right-angle positioning blocks 433 clamp the cardboard box 50. Then, the pressing mechanism 41 drives the inner support mold 42 to move downward, flanging and shaping the cardboard box 50.

[0047] The inner support mold 42 includes a cover plate 421, a shaft 422, a flange sleeve 423, a pressure plate 424, an inner support block assembly 425, and a support block 426.

[0048] Combination Figure 5 and Figure 6 As shown, flange sleeve 423 is fixed to the upper surface of cover plate 421, and support block 426 is located below cover plate 421. Flange sleeve 423 has a through flange hole 4231, and cover plate 421 has a through hole communicating with flange hole 4231. One end of shaft 422 is fixed to the output end of pressing mechanism 41, and the other end passes through flange hole 4231, through through hole, and is connected to support block 426. Shaft 422 has a first keyway 4221, and key 4222 is fixed in the first keyway 4221 by screws. Flange hole 4231 has a second keyway adapted to key 4222, and through hole has a third keyway communicating with second keyway. In this way, flange sleeve 423 and cover plate 421 can move up and down along key 4222, while preventing flange sleeve 423 and cover plate 421 from rotating along shaft 422. The cover plate 421 can press down the folded edge 51 of the cardboard box 50 to prevent the folded edge 51 from deforming when it is opened. To increase the pressure, a compression spring can also be installed above the flange sleeve 423, which is sleeved on the shaft 422.

[0049] The pressure plate 424 includes a horizontal plate 4241 and a vertical plate 4242 perpendicular to the upper surface of the horizontal plate 4241. The upper end of the vertical plate 4242 is provided with a stop to prevent the pressure plate from slipping. In this embodiment, the stop is a cotter pin in the pin hole 4243. There are two pressure plates 424. Pressure heads 4244 are fixed to both ends of the horizontal plate 4241. The outer edge of the pressure head 4244 has an arc-shaped pressing portion 4245. The bottom surface of the pressure head 4244 is flush with the bottom surface of the pressure plate 424.

[0050] Combination Figure 7 As shown, the support block 426 has vertical grooves 4262 at both the front and rear ends. The cover plate 421 has a through groove 4212 at the position corresponding to the groove 4262. After the vertical plate 4242 passes through the groove 4262 and the through groove 4212, the cotter pin is installed in the pin hole 4243 to prevent the pressure plate 424 from falling off the support block 426.

[0051] The inner support block assembly 425 is symmetrically arranged on the left and right sides of the support block 426. The inner support block assembly 425 consists of multiple spaced-apart inner support blocks 4251. Each inner support block 4251 is hinged to the support block 426 by two connecting rods 427. One end of the upper connecting rod is hinged to the upper end of the inner support block 4251, and the other end is hinged to the upper edge of the support block 426. One end of the lower connecting rod is hinged to the lower end of the inner support block 4251, and the other end is hinged to the lower edge of the support block 426, thus forming a quadrilateral linkage mechanism. In this embodiment, the inner support block assembly 425 consists of two inner support blocks 4251.

[0052] like Figure 5 and Figure 6 As shown, when the pressing mechanism 41 drives the inner support mold 42 downward, it presses the folded edge 51 of the cardboard box 50 downward. When the pressure plate 424 contacts the bottom of the cardboard box 50, the pressing mechanism 41 continues to drive the support block 426 downward. Since the pressure plate 424 can slide within the groove 4262 of the support block 426, the bottom of the inner support block 425 contacts the bottom of the cardboard box 50, and the pressing mechanism 41 continues to drive the support block 426 downward. At this time, the inner support block assembly 425 begins to move outward and pushes the folded edge 51 towards the inner wall of the cardboard box 50. Through the cooperation of the inner support block assembly 425 and the corresponding right-angle positioning block 433, the folded edge 51 is firmly pressed onto the inner wall of the cardboard box 50. The hot melt adhesive on the inner wall of the cardboard box 50 is sprayed on the folding machine, thus completing the shaping of the folded edge of the cardboard box.

[0053] Combination Figure 8As shown, the limiting device 60 is installed on the left side plate 11 and located behind the flanging forming device 40. The limiting device 60 includes a second lifting mechanism 61 installed on the side plate 11 and a stop block 62 driven by the second lifting mechanism 61. In this embodiment, the second lifting mechanism 61 is driven by a cylinder. When the first sensor 37 senses the paper box 50, the stop block 62 driven by the second lifting mechanism 61 rises. This effectively prevents the paper box 50 from exceeding the stop position due to inertia.

[0054] After the cardboard box 50 is formed, the pressing mechanism 41 drives the inner support mold 42 to return to its original position, the driving component 431 drives the push plate 432 to return to its original position, and the third lifting mechanism 61 drives the stop block 62 to return to its original position. The transmission mechanism 32 is activated to transport the formed cardboard box 50 to the next process.

[0055] A second baffle 13 is also installed on the upper rear part of the side panel 11 to prevent the cardboard box 50 from slipping during the conveying process.

[0056] In summary, the paper box folding and shaping device of the present invention can effectively realize the automatic sorting of the folded edges of the paper box and the final automatic pressing and shaping of the folded edges of the box paper, thereby improving efficiency and ensuring the pressing effect of the folded edges.

[0057] The foregoing has provided a detailed description of one embodiment of the present invention, but this description is merely a preferred embodiment and should not be construed as limiting the scope of the invention. All equivalent variations and modifications made within the scope of the claims of this invention should still fall within the patent coverage of this invention.

Claims

1. A carton flange setting device, comprising a frame, a material taking device arranged on the frame for picking up cartons, a flange setting and conveying device for arranging and conveying cartons, and a flange forming device for processing the flange of the carton; an upper support and two symmetrical side plates are fixed on the upper part of the frame; the flange forming device comprises a pressing mechanism mounted on the upper support, an inner support mold driven by the pressing mechanism, and a positioning mechanism below the inner support mold, the positioning mechanism comprises a driving assembly symmetrically mounted on the two side plates and a push plate driven by the driving assembly; characterized in that: the inner support mold comprises a support block, a pressing plate arranged below the support block for pressing the flange of the carton downward, and an inner support block group hinged on the left and right sides of the support block for pushing the flange to adhere to the inner wall of the carton; the inner support block group is composed of a plurality of spaced inner support blocks, each of which is hinged to the support block through two connecting rods, one end of the upper connecting rod is hinged to the upper end of the inner support block, the other end is hinged to the upper edge of the support block, one end of the lower connecting rod is hinged to the lower end of the inner support block, and the other end is hinged to the lower edge of the support block, thereby forming a quadrilateral connecting rod mechanism; the positioning mechanism further comprises right-angle positioning blocks arranged at both ends of the inner side of the push plate for positioning the four corners of the carton. The inner support mold further comprises a cover plate, a flange sleeve and a shaft, the flange sleeve is fixed on the upper surface of the cover plate, the cover plate is located above the support block, the flange sleeve has a through flange hole, the cover plate is provided with a through hole communicating with the flange hole, one end of the shaft is fixed on the output end of the pressing mechanism, the other end passes through the flange hole, passes through the through hole, and is connected with the support block. The front and rear ends of the support block are provided with vertical sliding grooves, the cover plate is provided with a through groove corresponding to the sliding grooves, the pressing plate passes through the sliding grooves and the through groove, and the pressing plate is provided with a stop portion for preventing the pressing plate from sliding off. The push plate is provided with a waist groove, and a bolt is arranged in the waist groove, the bolt fixes the right-angle positioning blocks on the push plate, and loosening the bolt and moving the right-angle positioning blocks can adjust the distance between the two right-angle positioning blocks on the same side.

2. The carton turn-in forming apparatus of claim 1 wherein: The material taking device comprises a first lifting mechanism mounted on the front of the frame, a lifting platform driven by the first lifting mechanism, and a suction disc mechanism mounted on the lifting platform.

3. The carton turn-in device of claim 1, wherein: The arrangement and conveying device comprises a conveying mechanism and an arrangement mechanism symmetrically arranged on the two side plates, and a first sensor mounted on one of the side plates.

4. The carton turn-in device of claim 1, wherein: The arrangement mechanism comprises a first baffle, a guide plate and a guide rod, the first baffle is mounted above the front part of the side plate, and the guide plate and the guide rod are sequentially arranged above the first baffle in the conveying direction of the carton.

5. The carton turn-in device of claim 1, wherein: The guide plate has an outwardly folded guide portion, and the guide rod comprises a first inclined section inclined outwardly at the front part, a straight section at the middle part, and a second inclined section inclined inwardly at the rear part.

6. The carton turn-in forming apparatus of claim 1 wherein: One of the side plates and located behind the flange forming device is provided with a limiting device, the limiting device comprises a second lifting mechanism mounted on the side plate and a stop block driven by the second lifting mechanism.

7. The carton turn-in forming apparatus of claim 6 wherein: ​ 8. The carton turn-in forming apparatus of claim 7 wherein: ​ 9. The carton turn-in forming apparatus of claim 1 wherein: ​

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