A punching device for carton processing

Abstract

The application relates to the technical field of packaging machinery and discloses a punching device for paper box processing, which comprises a conveying device, a fixed column is arranged on the table top of the conveying device, a first hydraulic rod is arranged on the fixed column, a multi-rib outer column is rotationally connected to one end of the first hydraulic rod, a rotating column is slidably connected to the outer column, a first spring is arranged between the multi-rib outer column and the rotating column, a protruding column is fixedly installed on one side of the rotating column, a horn pipe is fixedly connected to the other end of the rotating column, and a circular ring cutter is fixedly installed at the other end of the horn pipe. The punching device for paper box processing can completely penetrate the paper box with the circular ring cutter during the process of opening the paper box, so that the waste paper can be separated from the paper box, waste paper cut off can be prevented from remaining on the paper box, waste paper can be prevented from remaining on the circular ring cutter after the opening is completed, and the paper box can be conveniently opened subsequently.

Description

Technical Field

[0001] The present invention relates to the technical field of packaging machinery, in particular to a punching device for carton processing. Background Art

[0002] As an important carrier in the packaging industry, cartons are widely used in logistics, food, electronics, medicine and other fields. With the rapid development of e-commerce and automated logistics, the demand for cartons continues to grow, and at the same time, the requirements for processing efficiency, precision and customization are also increasing. Punching is one of the key processes in carton processing and is used for ventilation, hand buckle design, rope fixing or automated equipment positioning. With the advancement of automation technology, modern punching devices use pneumatic / electric stamping, CNC or laser technology, which significantly improves production efficiency and flexibility. Market drivers include the growth of e-commerce logistics demand, environmental regulations and rising labor costs. The future trend will be towards intelligent, flexible and green technology to meet higher standards of carton processing.

[0003] The existing punching device for carton processing may not be able to completely cut the carton when opening a hole in the carton, resulting in the cut carton remaining on the hole, which will require manual cleaning or the use of special machinery. Therefore, it does not meet the existing needs. We have proposed a punching device for carton processing. Summary of the Invention

[0004] The present invention provides a punching device for carton processing. During the process of punching a hole in a carton, a circular cutter can completely penetrate the carton, so that waste paper can be separated from the carton, thereby preventing the cut waste paper from remaining on the carton. This solves the problem mentioned in the above background technology that when punching a hole in a carton, the carton may not be completely cut off, resulting in the cut carton remaining on the hole, which will require subsequent manual cleaning or the use of special machinery.

[0005] The present invention provides the following technical solution: a punching device for carton processing, comprising a conveying device, a fixed column is provided on the table of the conveying device, a first hydraulic rod is provided on the fixed column, one end of the first hydraulic rod is rotatably connected to a polygonal outer column, a rotating column is slidably connected to the outside of the polygonal outer column, a first spring is provided between the polygonal outer column and the rotating column, a raised column is fixedly installed on one side of the rotating column, the other end of the rotating column is fixedly connected to a trumpet tube, the other end of the trumpet tube is fixedly installed with a circular cutter, the circular cutter has a circular ring shape, and the circular cutter is used to open holes in cartons.

[0006] As an optional solution of the punching device for carton processing described in the present invention, wherein: the circular cutter is provided with a plurality of slots, the circular cutter is provided with a guiding slope, and the guiding slope is located in the slots.

[0007] As an optional solution of the punching device for carton processing described in the present invention, a control block is fixedly provided on the circular cutter, a sliding track and an inclined track are provided on the control block, and the sliding track and the inclined track are connected to each other.

[0008] As an optional solution of the punching device for carton processing described in the present invention, a fixed circular tube is fixedly installed on one side of the fixed column, the rotating column is located inside the fixed circular tube, and the rotating column is rotatably connected to the inside of the fixed circular tube, a spiral groove and a straight sliding groove are opened on the inner wall of the fixed circular tube, the spiral groove and the straight sliding groove are connected to each other, and the raised column is slidably connected to the spiral groove and the straight sliding groove.

[0009] As an optional solution of the punching device for carton processing described in the present invention, wherein: the interior of the polygonal outer column is slidingly connected to a polygonal inner column, the polygonal inner column is slidingly connected to the interior of the polygonal outer column, a fixed spring is provided between the polygonal outer column and the polygonal inner column, one end of the fixed spring is fixedly connected to the interior of the polygonal outer column, and the other end of the fixed spring is fixedly connected to one end of the polygonal inner column.

[0010] As an optional solution of the punching device for carton processing described in the present invention, a plurality of fixed tubes are fixedly installed on the other end of the polyhedral inner column, and the fixed tubes are slidably connected to the scraping rods. A second spring is arranged between the fixed tubes and the scraping rods, and the second spring is installed inside the fixed tubes.

[0011] As an optional solution of the punching device for carton processing described in the present invention, one end of the scraping rod is provided with a pointed head, one side of the pointed head is provided with a matching inclined surface, and the matching inclined surface is used for sliding connection with the guiding inclined surface.

[0012] As an optional solution of the punching device for carton processing described in the present invention, a plurality of interference columns are fixedly installed on one end of the polyhedral inner column, and a sliding ball is fixedly installed on the other end of the interference column, and the sliding ball is slidably connected to the inclined track and the sliding track.

[0013] As an optional solution of the punching device for carton processing described in the present invention, a first rack is provided on one side of the polygonal inner column, one side of the first rack is meshed and connected with a transmission gear, the transmission gear is rotatably connected to the polygonal outer column, the other side of the transmission gear is meshed and connected with a second rack, and the second rack is fixedly installed inside the rotating column.

[0014] As an optional solution of a punching device for carton processing described in the present invention, limiting plates for limiting cartons are provided on both sides of the conveying device table, a fixed platform is provided on the conveying device, and the fixed platform is used to cooperate with the circular cutter to open holes in the carton, a circular hole is opened on the fixed platform, and a collection box is provided below the circular hole.

[0015] The present invention has the following beneficial effects:

[0016] 1. This carton punching device, designed to completely separate waste paper from cartons and allow for centralized collection, features a rotating, downward-cutting circular cutter and a circular hole in a fixed platform. Specifically, the circular cutter, driven by a hydraulic lever, rotates and descends, penetrating the carton. The cut is neat, and the waste paper falls directly through the circular hole in the fixed platform into a collection bin below. This avoids the problem of waste paper clinging, a common problem with traditional punching, and ensures high-quality punching. The collection bin also centrally stores waste paper, significantly simplifying subsequent cleanup and improving production efficiency and ease of use.

[0017] 2. The punching device for carton processing forms an expansion structure through slots. When the sliding ball slides in the inclined track and collides with the control block, the circular cutter expands outward along the slots, forming a deformation similar to the opening of petals, so that waste paper stuck inside the circular cutter can fall out, so that waste paper can be actively removed and manual intervention can be avoided; the mechanical structure is reliable, ensuring that waste paper can be effectively discharged after each cut, which can improve production efficiency to a certain extent.

[0018] 3. The punching device for carton processing is equipped with an elastic scraping rod with a pointed tip. When the circular cutter expands, it automatically inserts into the slot for deep scraping. When the inclined surface is coordinated, it automatically retracts when reset, completely removing the waste paper stuck in the slot. This solves the problem of small waste paper residues that still exist in traditional expansion structures, ensures the cleanliness of the cutter interior, and significantly improves the stability of continuous operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 It is a schematic diagram of the circular hole structure of the present invention.

[0021] Figure 3 It is a schematic diagram of the matching inclined surface structure of the present invention.

[0022] Figure 4 Schematic diagram of the spiral groove structure of the present invention.

[0023] Figure 5 For the present invention Figure 4 Enlarged structural diagram at point A in the middle.

[0024] Figure 6 For the present invention Figure 4 Enlarged structural diagram at point B in the middle.

[0025] Figure 7 It is a schematic cross-sectional structural diagram of the rotating column of the present invention.

[0026] Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C in the middle.

[0027] Figure 9 It is a schematic diagram of the expansion structure of the circular cutter of the present invention.

[0028] In the figure: 1. Conveying device; 11. Limiting plate; 12. Fixed platform; 13. Round hole; 14. Collecting box; 15. Carton; 2. Fixed column; 21. First hydraulic rod; 22. Fixed circular tube; 23. Spiral groove; 24. Rotating column; 25. Raised column; 26. Bell tube; 27. Annular cutter; 28. Grooving; 29. ​​Guide slope; 210. Control block; 211. Sliding track; 212. Inclined track; 213. Straight slide; 3. Polygonal outer column; 31. Polygonal inner column; 32. Fixed spring; 33. Fixed tube; 34. First spring; 35. Scraping rod; 36. Pointed head; 37. Matching slope; 38. First rack; 39. Second rack; 310. Transmission gear; 311. Second spring; 4. Resistance column; 41. Sliding ball. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] For example 1, please refer to Figures 1-9The present invention discloses a punching device for carton processing, comprising a conveying device 1, which is an intermittent roller conveyor belt. Through such a design, a carton 15 can be conveyed during the rotation of the roller, which can facilitate the subsequent punching of the carton 15. At the same time, the conveying device 1 is only a section on the assembly line. A fixed column 2 is provided on the table of the conveying device 1, and a first hydraulic rod 21 is provided on the fixed column 2. One end of the first hydraulic rod 21 is rotatably connected to a polygonal outer column 3, and the outer side of the polygonal outer column 3 is slidably connected to a rotating column 24. A first spring 34 is provided between the polygonal outer column 3 and the rotating column 24. Through the first The design of the spring 34 enables the first hydraulic rod 21 to drive the rotating column 24 to slide downward when driving the polygonal outer column 3 to slide downward. A raised column 25 is fixedly installed on one side of the rotating column 24, and a trumpet tube 26 is fixedly connected to the other end of the rotating column 24. A circular cutter 27 is fixedly installed on the other end of the trumpet tube 26. The circular design of the circular cutter 27 enables the subsequent opening of the carton 15. The circular cutter 27 has a circular shape and is used to open a hole in the carton 15. It should be noted that multiple fixed columns 2 and circular cutters 27 can be installed on the conveying device 1 according to actual conditions.

[0031] A fixed circular tube 22 is fixedly installed on one side of the fixed column 2, and the rotating column 24 is located inside the fixed circular tube 22, and the rotating column 24 is rotatably connected to the inside of the fixed circular tube 22. A spiral groove 23 and a straight sliding groove 213 are provided on the inner wall of the fixed circular tube 22. The spiral groove 23 and the straight sliding groove 213 are connected to each other, and the raised column 25 is slidingly connected to the spiral groove 23 and the straight sliding groove 213. Through the design of the sliding connection between the spiral groove 23 and the raised column 25, when the raised column 25 slides in the spiral groove 23, it can drive the rotating column 24 to rotate, so that the rotating column 24 can drive the trumpet tube 26 and the circular cutter 27 to rotate together, and the carton 15 is opened by the rotation of the circular cutter 27.

[0032] Limiting plates 11 for limiting cartons 15 are provided on both sides of the conveying device 1 table. Through the design of the limiting plates 11, the conveying device 1 can limit the position of the cartons 15 during the conveying process of the cartons 15, which can prevent the position of the cartons 15 from being offset during the conveying process of the cartons 15, so that the subsequent circular cutter 27 can accurately make holes in the predetermined positions on the cartons 15. A fixed platform 12 is provided on the conveying device 1. The fixed platform 12 is used to cooperate with the circular cutter 27 to make holes in the cartons 15. A circular hole 13 is provided on the fixed platform 12. Through the design of the fixed platform 12, it can The carton 15 is supported from below, so as to cooperate with the circular cutter 27 to open a hole in the carton 15. At the same time, through the design of the circular hole 13, the circular cutter 27 can continue to slide downward after cutting the carton 15, so that the circular cutter 27 can penetrate the carton 15, so that the cut waste paper can be separated from the carton 15 to prevent the waste paper from sticking to the carton 15. It should be noted that the circular cutter 27 is located directly above the circular hole 13, and a collection box 14 is provided below the circular hole 13. Through the design of the collection box 14, the cut waste paper can be collected in a centralized manner, which is convenient for subsequent cleaning.

[0033] The carton 15 is transported by the conveying device 1, and the position of the carton 15 is limited by the limiting plate 11, so that the carton 15 can slide within a predetermined track. When the carton 15 is transported to the fixed platform 12, the first hydraulic rod 21 is started, so that the first hydraulic rod 21 drives the polygonal outer column 3 and the rotating column 24 to slide downward. When the rotating column 24 slides downward, it drives the raised column 25 to slide in the straight groove 213 first. When the circular cutter 27 cuts into the carton 15, the raised column 25 slides from the straight groove 213 into the spiral groove 23. When sliding in the spiral groove 23, the design of the raised column 25 sliding in the spiral groove 23 makes the raised column 25 drive the rotating column 24 to rotate together. Through the rotation of the rotating column 24, the rotating column 24 can drive the trumpet 26 and the circular cutter 27 to rotate together, so that The circular cutter 27 can rotate while sliding downward, so that the circular cutter 27 can cut the carton 15, thereby completing the opening of the carton 15. Through such a design, the circular cutter 27 will not rotate when the circular cutter 27 just contacts the carton 15. The circular cutter 27 will rotate only after the circular cutter 27 completes the cutting and punching of the carton 15. This can reduce the friction of the circular cutter 27 cutting to a certain extent, realize secondary rotation cutting, and avoid the situation where the carton 15 and the waste paper are adhered. At the same time, through the design of the rotational connection between the first hydraulic rod 21 and the multi-faceted outer column 3, the first hydraulic rod 21 will not affect the rotation of the rotating column 24 when driving the rotating column 24 to slide downward, so that the rotating column 24 can drive the circular cutter 27 to rotate to complete the cutting of the carton 15.

[0034] It should be noted that when the conveying device 1 conveys the carton 15 to the opening position, the conveying device 1 will stop conveying the carton 15, leaving enough time for the circular cutter 27 to open the carton 15, so that the circular cutter 27 can accurately open the carton 15 and prevent the circular cutter 27 from opening the hole in the wrong position. When the circular cutter 27 completes the hole opening and returns to its original position under the action of the first hydraulic rod 21, the conveying device 1 will start again and continue to convey the carton 15. At the same time, those skilled in the art can install a hydraulic rod on the limiting plate 11, and a pressing plate for pressing the carton 15 is fixed at the output end of the hydraulic rod. The hydraulic rod is used to drive the pressing plate to move, so that the carton 15 is positioned between the pressing plate and the fixed platform 12 to ensure the stability of the carton 15 when punching. The hydraulic rod and the pressing plate are both existing technologies, and those skilled in the art can select according to actual needs, which will not be elaborated here.

[0035] In this embodiment, the carton 15 is transported intermittently by the conveying device 1, which can provide the circular cutter 27 with enough time to open the carton 15. At the same time, with the cooperation of the limiting plate 11, the carton 15 can be transported accurately and efficiently and prevented from deflecting, ensuring that the opening position is accurate so that the circular cutter 27 can open the hole. At the same time, the circular cutter 27 can be installed in multiple pieces as needed to realize flexible opening. When the first hydraulic rod 21 drives the multi-faceted outer column 3, the rotating column 24 and the circular cutter 27 to slide downward, the rotating column 24 can rotate through the cooperation between the raised column 25 and the spiral groove 23. The rotating column 24 drives the circular cutter 27 to rotate together, so that after the circular cutter 27 cuts the carton 15 to a certain depth, the circular cutter 27 slides downward and rotates at the same time, realizing the rotation and downward cutting of the circular cutter 27, cooperating with the fixed platform 12 and the circular hole 13, and at the same time the first hydraulic rod 21 drives the circular cutter 27 to penetrate the carton 15, so that the cut waste paper can be separated from the carton 15, ensuring the quality of the opening and preventing the waste paper from sticking to the carton 15. At the same time, through the design of the collection box 14, the cut waste paper can be collected in a centralized manner, which is convenient for subsequent processing.

[0036] Example 2: This example is intended to promote the solution of the problem that waste paper may be stuck in the circular cutter 27 after the carton 15 is opened. This example is an improvement made on the basis of Example 1. For details, please refer to Figures 1-9 A plurality of slots 28 are provided on the circular cutter 27. Through the design of the plurality of slots 28, the subsequent circular cutter 27 can expand, so that the waste paper stuck inside the circular cutter 27 can fall off, which is convenient for the subsequent hole opening work. A guide slope 29 is provided on the circular cutter 27, and the guide slope 29 is located in the slot 28.

[0037] A control block 210 is fixedly provided on the circular cutter 27 . A sliding track 211 and an inclined track 212 are provided on the control block 210 . The sliding track 211 and the inclined track 212 are communicated with each other.

[0038] The polygonal outer column 3 is internally slidably connected to the polygonal inner column 31, and the polygonal inner column 31 is internally slidably connected to the polygonal outer column 3. A fixed spring 32 is provided between the polygonal outer column 3 and the polygonal inner column 31. One end of the fixed spring 32 is fixedly connected to the interior of the polygonal outer column 3, and the other end of the fixed spring 32 is fixedly connected to one end of the polygonal inner column 31.

[0039] A plurality of interference columns 4 are fixedly mounted on one end of the polygonal outer column 3 , and a sliding ball 41 is fixedly mounted on the other end of the interference column 4 . The sliding ball 41 is slidably connected to the inclined track 212 and the sliding track 211 .

[0040] During the process of the first hydraulic rod 21 driving the polygonal outer column 3, the rotating column 24 and the circular cutter 27 to slide downward, and with the cooperation of the fixed circular tube 22, the rotating column 24 and the circular cutter 27 are rotated. When the circular cutter 27 completes the hole opening of the carton 15, the first hydraulic rod 21 will continue to drive the polygonal outer column 3, the rotating column 24, the trumpet tube 26 and the circular cutter 27 to slide downward, so that the circular cutter 27 can completely penetrate the carton 15, and at the same time, the circular cutter 27 can pass through the fixed platform 12 from the circular hole 13, so that the trumpet tube 26 is in the circular hole 13. Through such a design, when the subsequent circular cutter 27 expands, it will not be affected by the fixed platform 12, so that the circular cutter 27 can complete the expansion action;

[0041] When the circular cutter 27 penetrates the fixed platform 12, Figure 4 At this time, the raised column 25 will slide to the bottom of the fixed circular tube 22. At this time, when the first hydraulic rod 21 continues to extend and retract downward, the position of the rotating column 24 has been fixed, so that when the polygonal outer column 3 continues to slide downward, it will squeeze the first spring 34, causing the first spring 34 to deform, so that the first hydraulic rod 21 can push the polygonal outer column 3 to slide downward. Through the downward sliding of the polygonal outer column 3, the polygonal outer column 3 can drive the resistance column 4 and the sliding ball 41 to slide downward together. In the process of sliding downward, the sliding ball 41 will first slide in the inclined track 212, so that the sliding ball 41 can squeeze the control block 210, so that the control block 210 can pressurize the inside of the circular cutter 27, so that the circular cutter 27 can expand. At the same time, through the design of the sliding track 211, after the circular cutter 27 expands to a certain extent, the expansion angle of the circular cutter 27 can be fixed, thereby facilitating subsequent operations.

[0042] In this embodiment, the first hydraulic rod 21 is used to drive the multi-faceted outer column 3 and the resistance column 4 to slide downward together, so that the sliding ball 41 at one end of the resistance column 4 can slide in the inclined track 212 and the sliding track 211, so that the sliding ball 41 can resist the control block 210, so that the control block 210 can transmit the force to the circular cutter 27, so that the circular cutter 27 can expand. The design of the expansion of the circular cutter 27 allows the waste paper stuck in the circular cutter 27 to fall off. At the same time, the design of the sliding track 211 allows the multi-faceted outer column 3 to slide downward while driving the multi-faceted inner column 31 to continue to slide. 1 can always apply pressure to the control block 210, so that the circular cutter 27 can always be in an expanded state, so that the resistance column 4 will not slide out of the predetermined trajectory due to the downward movement of the polygonal outer column 3, further solving the problem that waste paper may be stuck in the circular cutter 27 after the hole is opened in the carton 15. It should be noted that the rigidity of the first spring 34 is relatively large, and when the hole is opened in the carton 15, it is not enough to cause the first spring 34 to deform and expand and contract. When the subsequent rotating column 24 moves to the bottom, the first hydraulic rod 21 generates a large downward pressure, so that there is a relative displacement between the polygonal outer column 3 and the rotating column 24, and only then is the first spring 34 compressed.

[0043] Example 3: This example is intended to promote the solution of the problem that after the carton 15 is cut, some waste paper may be stuck in the slot 28. This example is an improvement made on the basis of Example 1 and Example 2. For details, please refer to Figures 1-9 The other end of the multi-faceted inner column 31 is fixedly installed with multiple fixed tubes 33, and the fixed tube 33 is slidably connected to the scraping rod 35. The design of the scraping rod 35 can scrape the sub-groove 28, thereby preventing waste paper from being stuck in the sub-groove 28. A second spring 311 is provided between the fixed tube 33 and the scraping rod 35. The second spring 311 is installed inside the fixed tube 33. Through the design of the second spring 311, the scraping rod 35 can pop out from the fixed tube 33, so that the scraping rod 35 can be in a working state.

[0044] A pointed tip 36 is provided at one end of the scraper rod 35. Through the design of the pointed tip 36, the scraper rod 35 can be inserted into the slot 28 more accurately. A matching bevel 37 is provided on one side of the pointed tip 36. The matching bevel 37 is used to be slidably connected with the guide bevel 29. Through the design of the matching bevel 37 and the guide bevel 29, the subsequent scraper rod 35 can slide back into the interior of the fixed tube 33.

[0045] The first rack 38 is arranged on one side of the multi-ribbed inner column 31, one side of the first rack 38 is engaged with a transmission gear 310, the transmission gear 310 is rotatably connected with the multi-ribbed outer column 3, the other side of the transmission gear 310 is engaged with a second rack 39, the second rack 39 is fixedly installed in the inside of the rotating column 24, through the design of the first rack 38, the second rack 39 and the transmission gear 310, when the multi-ribbed outer column 3 slides in the rotating column 24, through the cooperation between the first rack 38, the second rack 39 and the transmission gear 310, the multi-ribbed inner column 31 can slide downward, so that the multi-ribbed inner column 31 can drive the scraping rod 35 to slide.

[0046] When the multi-ribbed outer column 3 slides in the rotating column 24, the first rack 38 and the transmission gear 310 slide together, when the transmission gear 310 slides downward, the transmission gear 310 rotates under the action of the second rack 39, the first rack 38 is driven by the rotation of the transmission gear 310, so that the first rack 38 and the multi-ribbed inner column 31 slide downward together, through the downward sliding of the multi-ribbed inner column 31, the multi-ribbed inner column 31 drives the fixed tube 33 and the scraping rod 35 to slide together, when the sharp head 36 on the scraping rod 35 slides to the branch groove 28, the sliding ball 41 has already slid into the sliding track 211 from the inclined track 212 at this time, so that the circular ring cutter 27 is in an expanded state, and the branch groove 28 has also been expanded, through such design, the scraping rod 35 can be inserted into the branch groove 28 under the action of the first spring 34, and through the design of the sharp head 36, the scraping rod 35 can be better guided to be inserted into the branch groove 28, through the design that the scraping rod 35 is inserted into the branch groove 28, in the process that the multi-ribbed inner column 31 continues to drive the scraping rod 35 to slide downward, the scraping rod 35 can scrape the inside of the branch groove 28, so that the waste paper clamped in the branch groove 28 can be completely removed, preparing for the subsequent hole opening.

[0047] It should be noted that after the scraping rod 35 completes the scraping of the inside of the branch groove 28, the first hydraulic rod 21 is started at this time to drive the multi-ribbed outer column 3 to slide upward, so that the matching inclined surface 37 can cooperate with the guide inclined surface 29, so that the matching inclined surface 37 can drive the scraping rod 35 to slide into the inside of the fixed tube 33 under the guidance of the guide inclined surface 29, and the first spring 34 is deformed at the same time; it should be noted that after the scraping rod 35 is retracted into the inside of the fixed tube 33, the sliding ball 41 will slide from the sliding track 211 to the inclined track 212, through such design, it can prevent the situation that the scraping rod 35 is clamped in the branch groove 28 from occurring in the process of resetting.

[0048] In this embodiment: when the polygonal outer column 3 is driven to slide downward by the first hydraulic rod 21, the polygonal inner column 31 will drive the fixed tube 33 and the scraping rod 35 to slide downward together. When the scraping rod 35 slides to the expanded slot 28, the scraping rod 35 will slide into the inside of the slot 28 under the guidance of the pointed head 36, so that the subsequent polygonal inner column 31 will continue to slide downward with the fixed tube 33 and the scraping rod 35, and will scrape the inside of the slot 28, so that the waste paper stuck in the slot 28 can be cleaned up, preparing for the subsequent hole opening, and further solving the problem that waste paper may be stuck in the circular cutter 27 after the carton 15 is opened.

[0049] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0050] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A punching device for carton processing, comprising a conveying device, a fixed column provided on a table of the conveying device, and a first hydraulic rod provided on the fixed column, characterized in that: One end of the first hydraulic rod is rotatably connected to a polygonal outer column, and a rotating column is slidably connected to the outside of the polygonal outer column. A first spring is provided between the polygonal outer column and the rotating column. A protruding column is fixedly installed on one side of the rotating column. The other end of the rotating column is fixedly connected to a trumpet tube, and a circular cutter is fixedly installed on the other end of the trumpet tube. The circular cutter has a circular ring shape and is used to open holes in cartons. The circular cutter is provided with a plurality of slots, and a guide slope is provided on the circular cutter, and the guide slope is located in the slots; The interior of the polygonal outer column is slidably connected to a polygonal inner column, and a plurality of fixed tubes are fixedly installed at the other end of the polygonal inner column. A scraping rod is slidably connected to the fixed tube, and a second spring is provided between the fixed tube and the scraping rod. The second spring is installed inside the fixed tube. One end of the scraping rod is provided with a pointed head, and a matching inclined surface is provided on one side of the pointed head. The matching inclined surface is used to be slidably connected to the guiding inclined surface; A fixed circular tube is fixedly installed on one side of the fixed column, the rotating column is located inside the fixed circular tube, and the rotating column is rotatably connected to the inside of the fixed circular tube. A spiral groove and a straight sliding groove are opened on the inner wall of the fixed circular tube, the spiral groove and the straight sliding groove are connected to each other, and the raised column is slidably connected to the spiral groove and the straight sliding groove.

2. A punching device for carton processing according to claim 1, characterized in that: A control block is fixedly provided on the circular cutter. A sliding track and an inclined track are provided on the control block. The sliding track and the inclined track are communicated with each other.

3. A punching device for carton processing according to claim 2, characterized in that: The polygonal inner column is slidably connected to the interior of the polygonal outer column, and a fixed spring is provided between the polygonal outer column and the polygonal inner column. One end of the fixed spring is fixedly connected to the interior of the polygonal outer column, and the other end of the fixed spring is fixedly connected to one end of the polygonal inner column.

4. A punching device for carton processing according to claim 3, characterized in that: A plurality of interference columns are fixedly mounted on one end of the multi-faceted inner column, and a sliding ball is fixedly mounted on the other end of the interference column. The sliding ball is slidably connected to the inclined track and the sliding track.

5. A punching device for carton processing according to claim 4, characterized in that: A first rack is provided on one side of the polygonal inner column, one side of the first rack is meshed with a transmission gear, the transmission gear is rotatably connected to the polygonal outer column, and the other side of the transmission gear is meshed with a second rack, which is fixedly installed inside the rotating column.

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