Carton processing device and carton processing method
The device automatically adjusts the position of the creasing roller and flattens the carton, solving the problems of low manual adjustment efficiency and potential safety hazards of existing creasing machines, and achieving efficient and accurate carton creasing and flattening processing.
Patent Information
- Application Number
- CN202511285797.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-10
- Publication Date
- 2025-10-17
AI Technical Summary
When existing creasing machines are used to creasing cartons, manual alignment of the creasing roller is required, resulting in low efficiency in adjusting the creasing position for cartons of different specifications and posing safety risks.
A carton processing device was designed, which included an adjustment mechanism and a flattening piece. The position of the creasing roller was automatically adjusted by an adjustment plate and an electric telescopic rod. The limiter and mechanical transmission were combined to ensure the creasing accuracy, and the warping phenomenon was eliminated by the flattening piece.
It realizes the automatic indentation of cartons of different sizes and specifications, improves the indentation accuracy and production efficiency, avoids the errors and safety hazards caused by manual adjustment, and ensures the flatness of the cartons.
Smart Images
Figure CN120792235A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of paper box processing, in particular to a paper box processing device and a paper box processing method. BACKGROUND
[0002] Paper box processing is an important branch in the industrial field, and is of great significance to improving packaging quality, ensuring commodity transportation safety and promoting logistics efficiency. The processing process covers design, printing, die cutting, indentation, box pasting and splicing, and paper boxes are produced efficiently through cooperation of machinery and automation technology, which not only meets the diversified needs of market for paper box specifications and quality, but also promotes the upgrading of the industry towards intelligence and environmental protection.
[0003] Among them, when the paper box is indented, a paper box indentation machine needs to be used. The existing indentation machine needs manual alignment of the paper box to the indentation roller when indenting the paper box. For paper boxes of different specifications, different indentation positions are required, manual alignment is low in efficiency, and there is a safety hazard. Therefore, the application provides a paper box processing device and a paper box processing method. SUMMARY
[0004] The application aims to provide a paper box processing device and a paper box processing method to solve the problem that the existing indentation machine needs manual alignment of the paper box to the indentation roller when indenting the paper box, different indentation positions are required for paper boxes of different specifications, manual alignment is low in efficiency, and there is a safety hazard.
[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a paper box processing device, comprising an indentation machine main body, the indentation machine main body comprising a table top, a paper box and an indentation roller, the paper box being located above the table top, and the indentation roller being located above the paper box and being rotationally connected with the indentation machine main body. An indentation mechanism is located above the indentation machine main body, the indentation mechanism comprising a rotating rod arranged above the table top, the rotating rod being fixedly connected with a drive gear on the outer wall, the indentation roller being located at the periphery of the rotating rod and being slidingly connected with the rotating rod, the inner wall of the indentation roller being fixedly connected with a gear tooth, and the gear tooth being engaged with the drive gear. An adjusting mechanism is located above the table top, and the adjusting mechanism can adjust the position of the indentation roller. A leveling piece is located at the end of the indentation roller away from the paper box, and the leveling piece can level the indented paper box.
[0006] The adjusting mechanism comprises an adjusting plate arranged above the table top, the adjusting plate being slidingly connected with the table top, an electric telescopic rod one being arranged on the inner wall of the indentation machine main body, the end of the electric telescopic rod one being fixedly connected with the adjusting plate, and a pressure sensor being arranged on the end of the electric telescopic rod one away from the adjusting plate.
[0007] The adjusting box is fixedly connected above the indentation machine body, a plurality of limiting holes are formed in the upper end of the adjusting box, and an adjusting block is slidably connected to the periphery of the adjusting box.
[0008] The limiting member comprises an adjusting groove formed in the bottom of the adjusting block, a plurality of springs are fixedly connected to the inner wall of the adjusting groove, a limiting rod is fixedly connected to the end of each spring away from the inner wall of the adjusting groove, the limiting rod is located inside the adjusting groove and is slidably connected to the adjusting groove, and the limiting rod is located above the limiting hole.
[0009] The driving hole is in communication with the adjusting groove, a driving rod is slidably connected in the driving hole, the driving rod is fixedly connected to the upper end of the limiting rod, the driving rod is located in the center of the spring, an electric telescopic rod 2 is fixedly connected to the end of the driving rod away from the limiting rod, and the electric telescopic rod 2 is located above the adjusting block and is fixedly connected to the outer wall of the adjusting block.
[0010] The positioning rod is fixedly connected to the lower end of the adjusting block, positioning grooves are formed in the two sides of the indentation roller, and the end of the positioning rod away from the adjusting block is located inside the positioning groove and is slidably connected to the positioning groove.
[0011] The adjusting rod is fixedly connected to the outer wall of the adjusting block, and the adjusting plate abuts against the adjusting rod.
[0012] The leveling member comprises a belt sleeved around the rotating rod, a transmission rod is arranged on the inner side of the belt, the belt is sleeved around the transmission rod, a plurality of rollers are fixedly connected to the outer wall of the transmission rod, and the rollers are located above the table top and are rotatably connected to the table top.
[0013] A carton processing method, comprising the following steps: S1, determining the carton specification by the adjusting plate of the adjusting mechanism, sliding the adjusting plate to drive the adjusting rod to slide, adjusting the position of the adjusting block through the adjusting rod, and then adjusting the position of the indentation roller; S2, when rolling, the limiting member in the adjusting block is clamped with the adjusting box, so as to fix the position of the indentation roller; S3, after indentation, the adjusting plate is reset by the electric telescopic rod 1, so as to adjust the position of the next carton and then adjust the position of the indentation roller; S4, the carton after indentation is leveled by the rollers of the leveling member, so as to facilitate transportation.
[0014] The present application has at least the following advantages: The position of the indentation roller is determined by the adjusting plate of the adjusting mechanism, and the carton is pushed to the edge of the table top, so that position deviation during indentation is avoided, the indentation roller performs indentation on the carton above the table top through the indentation mechanism, different sizes and specifications of cartons can be adapted to, and the flattened piece is used for flattening the carton after indentation, so that the edge lifting phenomenon of the carton after indentation is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a schematic diagram of the overall structure of the indentation machine of the present application; Figure 2 It is a schematic diagram of the overall structure of the adjusting plate of the present application; Figure 1 It is a schematic diagram of the enlarged structure of area A; Figure 3 It is a schematic diagram of the overall structure of the adjusting plate of the present application; Figure 4 It is a schematic diagram of the overall structure of the indentation roller of the present application; Figure 5 It is a schematic diagram of the adjusting mechanism structure of the present application; Figure 6 It is a schematic diagram of the overall structure of the adjusting plate of the present application; Figure 5 It is a schematic diagram of the enlarged structure of area B; Figure 7 It is a schematic diagram of the overall structure of the adjusting plate of the present application; Figure 5 It is a schematic diagram of the enlarged structure of area C; Figure 8 It is a schematic diagram of the overall structure of the flattened piece of the present application.
[0016] In the figure: 1, indentation machine main body; 11, table top; 12, carton; 13, indentation roller; 2, indentation mechanism; 21, rotating rod; 22, driving gear; 23, gear teeth; 3, adjusting mechanism; 31, adjusting plate; 32, electric telescopic rod one; 33, pressure sensor; 34, adjusting box; 35, limiting hole; 36, adjusting block; 37, positioning rod; 38, positioning groove; 39, adjusting rod; 4, flattened piece; 41, belt; 42, transmission rod; 43, roller; 5, limiting piece; 51, adjusting groove; 52, spring; 53, limiting rod; 54, driving hole; 55, driving rod; 56, electric telescopic rod two. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0018] Embodiment one Please refer to Figures 1-8The application provides a technical scheme: a carton processing device, comprising a creasing machine body 1, the creasing machine body 1 comprising a table top 11, a carton 12 and a creasing roller 13, the carton 12 being located above the table top 11, and the creasing roller 13 being located above the carton 12 and rotationally connected with the creasing machine body 1; A creasing mechanism 2 is located above the creasing machine body 1, the creasing mechanism 2 comprising a rotating rod 21 arranged above the table top 11, the rotating rod 21 being fixedly connected with a driving gear 22 on the outer wall, the creasing roller 13 being located on the periphery of the rotating rod 21 and being slidingly connected with the rotating rod 21, and the creasing roller 13 being fixedly connected with a gear tooth 23 on the inner wall, the gear tooth 23 being engaged with the driving gear 22; An adjusting mechanism 3 is located above the table top 11, and the adjusting mechanism 3 can adjust the position of the creasing roller 13; A flattening piece 4 is located at the end of the creasing roller 13 away from the carton 12, and the flattening piece 4 can flatten the carton 12 that has been creased; In use, the position of the creasing roller 13 is determined by the adjusting plate 31 of the adjusting mechanism 3, and the carton 12 is pushed to the edge of the table top 11 to avoid position deviation during creasing, thereby ensuring the accuracy and consistency of creasing, and a stable creasing process helps to reduce problems such as unclear and incoherent creasing caused by movement of the carton 12, improves the creasing quality, the creasing roller 13 creases the carton 12 above the table top 11 through the creasing mechanism 2, can adapt to cartons 12 of different sizes and specifications, so that the creasing machine body 1 does not need to frequently replace molds or adjust equipment when processing cartons 12 of multiple specifications, thereby improving production efficiency and equipment utilization, and the flattened piece 4 flattens the carton 12 that has been creased to avoid the carton 12 from being warped after creasing, and the flattening process can also eliminate stress concentration inside the carton 12, thereby improving the pressure resistance and stability of the carton 12.
[0019] The adjusting mechanism 3 comprises an adjusting plate 31 arranged above the table top 11, the adjusting plate 31 being slidingly connected with the table top 11, an electric telescopic rod one 32 being arranged on the inner wall of the creasing machine body 1, the electric telescopic rod one 32 being fixedly connected with the adjusting plate 31 at the end, and a pressure sensor 33 being arranged at the end of the adjusting plate 31 away from the electric telescopic rod one 32; When the carton 12 is subjected to indentation processing, the carton 12 is placed on the table top 11, the electric telescopic rod one 32 on the inner wall of the indentation machine body 1 pushes the adjusting plate 31 to slide towards the carton 12 until the carton 12 moves to the edge of the table top 11, avoiding the error caused by manual adjustment, making the indentation position more accurate, when the pressure sensor 33 extrudes the carton 12, the pressure sensor 33 can monitor the pressure of the adjusting plate 31 on the carton 12 in real time, when the pressure reaches the preset value, the electric telescopic rod one 32 stops pushing, ensuring that the carton 12 will not be deformed or displaced during indentation due to excessive extrusion, further improving the accuracy of indentation, and the electric telescopic rod one 32 is connected with the drive motor circuit, the drive motor is not shown in the figure, the drive motor can drive the rotating rod 21 to rotate, at this time the adjusting plate 31 adjusts the position of the indentation roller 13 to facilitate indentation of the carton 12.
[0020] The adjusting box 34 is fixedly connected above the indentation machine body 1, a plurality of limiting holes 35 are formed in the upper end of the adjusting box 34, and the adjusting block 36 is slidably connected to the periphery of the adjusting box 34. The adjusting block 36 is internally provided with a limiting piece 5 capable of limiting the indentation roller 13; The limiting piece 5 comprises an adjusting groove 51 formed in the bottom of the adjusting block 36, a plurality of springs 52 are fixedly connected to the inner wall of the adjusting groove 51, one end of each spring 52 away from the inner wall of the adjusting groove 51 is fixedly connected with a limiting rod 53, the limiting rod 53 is located inside the adjusting groove 51 and is slidably connected with the adjusting groove 51, and the limiting rod 53 is located above the limiting hole 35; Since the adjusting rod 39 is fixedly connected to the outer wall of the adjusting block 36, the adjusting plate 31 abuts against the adjusting rod 39, and when the adjusting plate 31 slides, it abuts against the adjusting rod 39, the adjusting block 36 slides through the adjusting rod 39, at this time the adjusting block 36 slides on the periphery of the adjusting box 34, and since the positioning rod 37 is fixedly connected to the lower end of the adjusting block 36, the positioning groove 38 is formed on both sides of the indentation roller 13, one end of the positioning rod 37 away from the adjusting block 36 is located inside the positioning groove 38 and is slidably connected with the positioning groove 38, and when the adjusting block 36 slides, it can drive the indentation roller 13 to slide on the periphery of the rotating rod 21, when the adjusting plate 31 stops sliding, the indentation roller 13 stays at the position where indentation of the carton 12 is required, the drive motor is started to drive the rotating rod 21 to rotate, the drive gear 22 located on the periphery of the rotating rod 21 drives the gear teeth 23 to rotate, at this time the indentation roller 13 rotates to perform indentation on the surface of the carton 12, the positioning rod 37 at the lower end of the adjusting block 36 is slidably connected with the positioning groove 38 on both sides of the indentation roller 13, which not only ensures the stability of the indentation roller 13 during adjustment, but also limits the deviation of the indentation roller 13 by the sliding of the positioning rod 37 in the positioning groove 38, so that the indentation roller 13 can accurately stay at the predetermined position, at the same time, the position of the indentation roller 13 is adjusted by mechanical transmission, which has higher stability and reliability compared with electronic or pneumatic transmission, the mechanical transmission is not easily disturbed by the outside world, and can ensure the accuracy and consistency of the position of the indentation roller 13.
[0021] The driving hole 54 is arranged at the upper end of the adjusting block 36 and communicates with the adjusting groove 51. The driving rod 55 is slidably connected in the driving hole 54. The driving rod 55 is fixedly connected to the upper end of the limiting rod 53 and is located at the center of the spring 52. The second electric telescopic rod 56 is fixedly connected to the end of the driving rod 55 away from the limiting rod 53, is located above the adjusting block 36, and is fixedly connected to the outer wall of the adjusting block 36. When the driving motor is started, the driving motor is circuit-connected with the second electric telescopic rod 56. The electric telescopic rod can push the limiting rod 53 to slide in the adjusting groove 51. When the limiting rod 53 slides, the spring 52 is stretched. Until the limiting rod 53 slides out of the adjusting groove 51 and is inserted into the limiting hole 35 arranged in the adjusting box 34, the adjusting block 36 is limited. The purpose of arranging multiple limiting holes 35 and limiting rods 53 is to ensure that the adjusting block 36 can be clamped with the limiting hole 35 at any position of the adjusting box 34 and can adapt to different sizes and specifications of the carton 12 indentation. When the indentation is stopped, the driving motor is powered off, and the second electric telescopic rod 56 is also powered off. At this time, the second electric telescopic rod 56 no longer pushes the limiting rod 53. At this time, the spring 52 resets and pulls the limiting rod 53 back into the adjusting groove 51. The limiting rod 53 is disengaged from the clamping of the limiting hole 35, which facilitates the adjustment of the position of the adjusting block 36 and the indentation roller 13.
[0022] The flattening piece 4 comprises a belt 41 sleeved on the outer periphery of the rotating rod 21. The inner side of the belt 41 is provided with a transmission rod 42. The belt 41 is sleeved on the outer periphery of the transmission rod 42. The outer wall of the transmission rod 42 is fixedly connected with multiple rollers 43. The rollers 43 are located above the table top 11 and are rotationally connected with the table top 11. After the indentation of the carton 12 is completed, in order to avoid the edge lifting phenomenon of the carton 12 in the rolling process of the indentation roller 13, the rotating rod 21 drives the transmission rod 42 to rotate through the belt 41. The rollers 43 located on the outer periphery of the transmission rod 42 can press the carton 12 and can timely smooth the local stress caused by indentation, avoid the edge of the carton 12 or the indentation line near the edge to lift or wrinkle, and the surface of the flattened carton 12 is more flat, which is beneficial to subsequent printing, labeling and other process operations, improves the overall packaging quality, and the flattened carton 12 is more easily conveyed, grabbed and stacked on the automatic production line, which improves the compatibility and efficiency of the production line.
[0023] The working principle and use process of the present application are as follows: when the carton 12 is subjected to indentation processing, the carton 12 is placed on the table top 11, the electric telescopic rod one 32 on the inner wall of the indentation machine body 1 pushes the adjusting plate 31 to slide towards the carton 12 until the carton 12 moves to the edge of the table top 11, and when the pressure sensor 33 extrudes the carton 12, the electric telescopic rod one 32 stops pushing, since the outer wall of the adjusting block 36 is fixedly connected with the adjusting rod 39, the adjusting plate 31 abuts against the adjusting rod 39, and when the adjusting plate 31 slides, the adjusting rod 39 is abutted, the adjusting block 36 is slid by the adjusting rod 39, at this time, the adjusting block 36 slides on the periphery of the adjusting box 34, and since the lower end of the adjusting block 36 is fixedly connected with the positioning rod 37, the positioning grooves 38 are formed on both sides of the indentation roller 13, the end of the positioning rod 37 away from the adjusting block 36 is located in the positioning groove 38 and is slidably connected with the positioning groove 38, and when the adjusting block 36 slides, the indentation roller 13 on the periphery of the rotating rod 21 can slide, when the adjusting plate 31 stops sliding, the indentation roller 13 stays at the position where indentation is needed for the carton 12, the driving motor is started to drive the rotating rod 21 to rotate, the driving gear 22 on the periphery of the rotating rod 21 drives the gear teeth 23 to rotate, at this time, the indentation roller 13 rotates to perform indentation on the surface of the carton 12, at the same time when the driving motor is started, the driving motor is connected with the electric telescopic rod two 56 in circuit, the electric telescopic rod can push the limiting rod 53 to slide in the adjusting groove 51, when the limiting rod 53 slides, the spring 52 is stretched, until the limiting rod 53 slides out of the adjusting groove 51 and is inserted into the limiting hole 35 formed in the adjusting box 34, so as to limit the adjusting block 36, the purpose of arranging multiple limiting holes 35 and limiting rods 53 is to ensure that the adjusting block 36 can be clamped with the limiting hole 35 at any position of the adjusting box 34, when the indentation is stopped, the driving motor is de-energized, and at the same time the electric telescopic rod two 56 is de-energized, at this time, the electric telescopic rod two 56 no longer pushes the limiting rod 53, at this time, the spring 52 is reset, the limiting rod 53 is pulled back into the adjusting groove 51 by the spring 52, and the limiting rod 53 is disengaged from the clamping of the limiting hole 35, after the indentation of the carton 12 is completed, in order to avoid the edge of the carton 12 from being raised during the roller pressing process of the indentation roller 13, the rotating rod 21 drives the transmission rod 42 to rotate through the belt 41, the roller 43 on the periphery of the transmission rod 42 can press the carton 12, and can timely smooth the local stress caused by indentation, so as to avoid the edge of the carton 12 or the indentation line from being raised or wrinkled.
[0024] Example two A carton processing method, comprising the following steps: S1, the size of the carton 12 is determined by the adjusting plate 31 of the adjusting mechanism 3, the adjusting plate 31 is adjusted to slide to drive the adjusting rod 39 to slide, and the adjusting block 36 position is adjusted by the adjusting rod 39, and then the indentation roller 13 position is adjusted; S2, when the roller is pressed, the limiting piece 5 in the adjusting block 36 is clamped with the adjusting box 34, so as to fix the position of the indentation roller 13; S3, after the indentation is completed, the adjusting plate 31 is reset by the electric telescopic rod 32, so as to adjust the position of the next carton 12 and further adjust the position of the indentation roller 13; S4, the carton 12 after indentation is flattened by the roller 43 of the flattening member 4, so as to facilitate transportation.
[0025] It is to be noted that the relative terms such as first and second and the like are used herein only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between such entities or operations. Moreover, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus.
[0026] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A carton processing device, comprising: A creasing machine body (1), the creasing machine body (1) comprising a table (11), a carton (12), and a creasing roller (13), the carton (12) being located above the table (11), the creasing roller (13) being located above the carton (12) and being rotatably connected to the creasing machine body (1); It is characterized by further comprising: An indentation mechanism (2), the indentation mechanism (2) being located above the indentation machine body (1), the indentation mechanism (2) comprising a rotating rod (21) disposed above the table (11), the outer wall of the rotating rod (21) being fixedly connected to a driving gear (22), the indentation roller (13) being located outside the rotating rod (21) and being slidably connected to the rotating rod (21), the inner wall of the indentation roller (13) being fixedly connected to teeth (23), the teeth (23) being meshed with the driving gear (22); An adjusting mechanism (3), the adjusting mechanism (3) being located above the table (11), and the adjusting mechanism (3) being capable of adjusting the position of the creasing roller (13); A flattening piece (4) is located at one end of the creasing roller (13) away from the carton (12), and the flattening piece (4) can flatten the creasing carton (12).
2. The carton processing device according to claim 1, characterized in that: The adjusting mechanism (3) includes an adjusting plate (31) arranged above the table (11), the adjusting plate (31) being slidably connected to the table (11), an electric telescopic rod (32) being arranged on the inner wall of the creasing machine body (1), the end of the electric telescopic rod (32) being fixedly connected to the adjusting plate (31), and a pressure sensor (33) being arranged at one end of the adjusting plate (31) away from the electric telescopic rod (32).
3. The carton processing device according to claim 2, characterized in that: An adjusting box (34) is fixedly connected to the top of the creasing machine body (1), a plurality of limiting holes (35) are provided on the upper end of the adjusting box (34), an adjusting block (36) is slidably connected to the periphery of the adjusting box (34), and a limiting member (5) capable of limiting the creasing roller (13) is provided inside the adjusting block (36).
4. The carton processing device according to claim 3, characterized in that: The limiting member (5) includes an adjusting groove (51) formed at the bottom of the adjusting block (36), a plurality of springs (52) are fixedly connected to the inner wall of the adjusting groove (51), and one end of each spring (52) away from the inner wall of the adjusting groove (51) is fixedly connected to a limiting rod (53), the limiting rod (53) is located inside the adjusting groove (51) and is slidably connected to the adjusting groove (51), and the limiting rod (53) is located above the limiting hole (35).
5. The carton processing device according to claim 4, characterized in that: A driving hole (54) is provided at the upper end of the regulating block (36), the driving hole (54) being connected to the regulating slot (51), a driving rod (55) being slidably connected inside the driving hole (54), the driving rod (55) being fixedly connected to the upper end of the limiting rod (53), the driving rod (55) being located in the center of the spring (52), and an electric telescopic rod 2 (56) being fixedly connected at one end of the driving rod (55) away from the limiting rod (53), the electric telescopic rod 2 (56) being located above the regulating block (36) and fixedly connected to the outer wall of the regulating block (36).
6. The carton processing device according to claim 5, characterized in that: The lower end of the regulating block (36) is fixedly connected to a positioning rod (37), and positioning grooves (38) are provided on both sides of the indentation roller (13). The end of the positioning rod (37) away from the regulating block (36) is located inside the positioning groove (38) and is slidably connected to the positioning groove (38).
7. The carton processing device according to claim 5, characterized in that: An adjusting rod (39) is fixedly connected to the outer wall of the adjusting block (36), and the adjusting plate (31) abuts against the adjusting rod (39).
8. The carton processing device according to claim 1, characterized in that: The leveling member (4) comprises a belt (41) sleeved on the periphery of a rotating rod (21), a transmission rod (42) is provided on the inner side of the belt (41), the belt (41) is sleeved on the periphery of the transmission rod (42), and a plurality of rollers (43) are fixedly connected to the outer wall of the transmission rod (42), and the rollers (43) are located above the table top (11) and are rotatably connected to the table top (11).
9. A carton processing method, used in conjunction with the carton processing device according to claims 1-8, characterized in that: The following steps are involved: S1, determining the specifications of the carton (12) by means of the adjusting plate (31) of the adjusting mechanism (3), the adjusting plate (31) can drive the adjusting rod (39) to slide when sliding, and the adjusting block (36) is adjusted by means of the adjusting rod (39), thereby adjusting the position of the creasing roller (13); S2. During rolling, the limiting member (5) located inside the adjusting block (36) engages with the adjusting box (34), thereby fixing the position of the creasing roller (13); S3. After the creasing is completed, the adjustment plate (31) is reset through the electric telescopic rod (32) to facilitate the adjustment of the position of the next carton (12), thereby adjusting the position of the creasing roller (13); S4. The indented carton (12) is flattened by the roller (43) of the flattening member (4) for easy transportation.