A line pressing die for a carton cutting machine
By designing the crease line as a combination of connecting strips and insert strips, the problems of reduced template strength and high cost when adjusting the crease line position in traditional carton cutting machine molds are solved, enabling flexible adjustment of the crease line position and improved precision.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONGYUN PRECISION MOULD (KUNSHAN) CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-21
AI Technical Summary
Traditional carton cutting machines require frequent replacement of curved templates or the creation of mounting slots when adjusting the crease position of the crease, resulting in reduced mold strength and high costs, and making it difficult to flexibly adapt to the precision requirements of different carton specifications.
The design of the pressure line is a combination of connecting strips and plug strips. By adjusting the lateral offset distance between the pressure line and the plug strip, the position of the pressure line can be flexibly adjusted, avoiding the need to re-groove on the curved template. The use of metal material enhances stability and reduces the cost of replacing templates.
It enables flexible adjustment of the creasing position, avoids problems such as reduced template strength and frequent grooving, reduces production costs, and improves processing efficiency and creasing accuracy.
Smart Images
Figure CN224528156U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cardboard creasing technology, specifically a creasing mold for a carton cutting machine. Background Technology
[0002] When using a rotary die-cutting machine to crease cartons, the distance between the crease and the reference edge often varies slightly depending on the carton's specifications or precision.
[0003] Traditional embossed strips are rectangular strip structures. The installation process is as follows: First, a wooden curved template is installed on a roller. Then, the embossed strip is hammered into the installation groove through the groove opened on the curved template using a rubber mallet.
[0004] However, when it's necessary to change the distance between the pressure line position and the reference edge, a new mounting groove needs to be created on the curved template, and the pressure line is then installed in the newly created groove. In this case, if the changed distance is small, the distance between the two newly created mounting grooves will be too close, affecting the strength of the curved template; and if the changed distance is less than the width of the mounting groove, it will be impossible to create a new mounting groove on the curved template. In this situation, a new curved template will need to be created due to the change in the mounting groove's position, which is very uneconomical. Utility Model Content
[0005] To address the technical problems existing in the background art, this utility model provides a creasing mold for a carton cutting machine.
[0006] The technical solution of this utility model is as follows: A creasing mold for a carton cutting machine includes a roller and an arc-shaped template on its outer surface. The arc-shaped template has an installation groove, and a creasing line is inserted into the installation groove. The roller and the creasing line are both made of metal, and the arc-shaped template is made of wood. The connection and working principle of the roller and the arc-shaped template are based on existing technology and will not be described in detail here.
[0007] As the core technical concept of this utility model, the pressure line includes a connecting strip, a pressure line portion on its upper side, and an insert strip on its lower side. The pressure line portion and the insert strip extend along the length of the connecting strip, and the lateral sides of the pressure line portion and the insert strip are staggered, that is, the connecting strip and the pressure line portion are distributed in a Z-shaped cross-section. A clearance groove communicating with the installation groove is provided below the corresponding installation groove on the arc template. The insert strip is vertically inserted into the installation groove, and the lower end of the insert strip passes through the clearance groove and abuts against the outer surface of the roller. By adjusting the lateral staggered distance between the pressure line portion and the insert strip, the lateral position of the pressure line portion relative to the installation groove is changed, thereby adapting to different pressure line position requirements.
[0008] When using it, it is necessary to prepare different horizontally staggered pressure lines in advance according to the changes in the distance between the pressure line position and the reference edge. When it is necessary to adjust the pressure line position, there is no need to replace the new arc template or to re-open the installation groove on the arc template. Only the pressure line of the corresponding specification needs to be replaced. This effectively avoids the problem of reduced strength of the arc template caused by frequent opening of installation grooves, and saves costs by not having to replace the new arc template.
[0009] Furthermore, the pressure line is a strip structure parallel to the insertion strip, and both have the same length.
[0010] Furthermore, the two ends of the connecting strip, the pressure line, and the plug strip are coplanar planes.
[0011] Preferably, the lateral offset distance between the pressure part and the connector strip is 0mm-5mm.
[0012] Furthermore, the side of the creasing section away from the connecting strip has an arc-shaped creasing surface.
[0013] As one implementation method, the height of the connecting strip is not less than the horizontal width of the pressure part, and not less than the horizontal width of the plug strip.
[0014] Furthermore, the height of the connecting strip shall not be less than twice the lateral width of the pressure section or the plug strip.
[0015] As a further implementation, the width of the clearance groove is greater than the width of the connector strip, and the length of the clearance groove is the same as the length of the connector strip.
[0016] Furthermore, the inner side of the arc-shaped template is in contact with the outer wall of the roller, and the distance between the bottom of the clearance groove and the outer surface of the roller is no more than 0.5mm.
[0017] Preferably, the connecting strip, the pressure line, and the plug strip are integrally formed metal parts.
[0018] The beneficial effects of this utility model are as follows: (1) By designing the pressure line as a combination structure of connecting strip, upper pressure line part and lower insert strip, and setting the pressure line part and insert strip laterally offset, pressure lines with different laterally offset distances can be pre-prepared according to the change of distance between the pressure line position and the reference edge. When the pressure line position needs to be adjusted, there is no need to open the installation groove on the arc template. Only the pressure line of the corresponding specification needs to be replaced. This effectively avoids the problem of reduced strength of the arc template caused by frequent opening of installation grooves. There is no need to replace the arc template, which reduces production costs. At the same time, it reduces the process of disassembling and assembling the arc template, which significantly improves processing efficiency. (2) A clearance groove connected to the installation groove is provided below the corresponding installation groove on the arc template. The lower end of the plug strip passes through the clearance groove and abuts against the outer surface of the roller, so that when disassembling the pressure line, it can be knocked from the underside of the protruding plug strip, which facilitates the quick removal of the pressure line, simplifies the replacement operation, and further improves the work efficiency. At the same time, the abutment between the plug strip and the outer surface of the roller also enhances the stability of the pressure line installation and ensures the accuracy of the pressure line operation. Attached Figure Description
[0019] In the attached diagram: Figure 1 This is a top view of the crimping die in this embodiment; Figure 2 for Figure 1 Schematic diagram of AA section; Figure 3 for Figure 2 Enlarged view of the medium pressure lines; Figure 4 for Figure 2 Enlarged view of the arc-shaped template; Figure 5 This is a schematic diagram of the pressure line structure in this embodiment; Figure 6 This is a schematic diagram of the structure of the pressure line in the prior art when the pressure line mold is installed in this embodiment; Figure 7 This is a schematic diagram of another installation structure for the pressure lines in the pressure die of this embodiment; Figure 8 This is another structural diagram of the pressure line in this embodiment; The components represented by the various reference numerals in the diagram are: 1. Roller; 2. Curved template; 21. Mounting groove; 22. Clearance groove; 3. Pressing line; 31. Connecting strip; 32. Pressing line part; 33. Insertion strip. Detailed Implementation
[0020] Combination Figure 1 This embodiment provides a creasing mold for a carton cutting machine, including a roller 1 and an arc-shaped template 2 on its outer surface. The arc-shaped template 2 has an installation groove 21, and a creasing line 3 is inserted into the installation groove 21. The roller 1 and the creasing line 3 are both made of metal, while the arc-shaped template 2 is made of wood. During installation, the creasing line 3 is inserted into the installation groove 21 by using a rubber hammer. The connection between the roller 1 and the arc-shaped template 2 and the working principle are based on existing technology, and will not be described in detail or shown in the accompanying drawings.
[0021] Combination Figures 2-4The pressure line 3 includes a connecting strip 31, a pressure line portion 32 on its upper side, and an insert strip 33 on its lower side. The pressure line portion 32 and the insert strip 33 extend along the length of the connecting strip 31, and the pressure line portion 32 and the insert strip 33 are staggered on the same side in the lateral direction. That is, the connecting strip 31 and the pressure line portion 32 are distributed in a Z-shaped cross section. The arc template 2 has a clearance groove 22 that communicates with the mounting groove 21 below it. The insert strip 33 is vertically inserted into the mounting groove 21, and the lower end of the insert strip 33 passes through the clearance groove 22 and abuts against the outer surface of the roller 1. By adjusting the lateral staggered distance between the pressure line portion 32 and the insert strip 33, the lateral position of the pressure line portion 32 relative to the mounting groove 21 is changed, thereby adapting to different pressure line position requirements.
[0022] When in use, pressure lines 3 with different lateral offset distances need to be prepared in advance to accommodate changes in the distance between the pressure line position and the reference edge. When the pressure line position needs to be adjusted, there is no need to replace the new curved template 2, nor is it necessary to re-open the mounting groove 21 on the curved template 2. Only the pressure line 3 of the corresponding specification needs to be replaced. This effectively avoids the problem of reduced strength of the curved template 2 caused by frequent opening of the mounting groove 21, and saves costs by not having to replace the new curved template 2.
[0023] Combination Figure 1 The two ends of the connecting strip 31, the pressure part 32 and the plug strip 33 are coplanar planes, and the end faces are flat and burr-free, which facilitates quick positioning during installation and reduces assembly deviation.
[0024] The width of the clearance groove 22 is greater than the width of the connector strip 33, providing ample operating space for the installation and disassembly of the connector strip 33, making it easy to complete the installation and disassembly by tapping; and the length of the clearance groove 22 is the same as the length of the connector strip 33, so as to avoid weakening the strength of the arc template 2 due to the excessive length of the groove, and to balance the convenience of operation and structural stability.
[0025] The inner side of the arc-shaped template 2 fits against the outer wall of the roller 1, and the distance between the bottom of the clearance groove 22 and the outer surface of the roller 1 is no more than 0.5mm, reducing the overall assembly gap and preventing the pressure line position from shifting due to shaking during operation; at the same time, it makes the contact between the insert strip 33 and the roller 1 more stable, improves the installation firmness of the pressure line 3, ensures the pressure line accuracy, and according to actual needs, the spacing between adjacent adjustment positions is 0.5mm.
[0026] Combination Figure 3 The creasing section 32 is a strip structure parallel to the insert strip 33, and the two have the same length to ensure that the creasing section 32 and the insert strip 33 are subjected to balanced force during the creasing process, avoid local stress concentration and deformation of the creasing line 3 due to length differences, and at the same time ensure the straightness of the creasing trajectory, thereby improving the consistency and stability of the carton creasing.
[0027] Preferably, the lateral offset distance between the creasing section 32 and the insert strip 33 is 0mm-5mm, and the creasing line 3 with the corresponding offset distance can be selected according to the carton specifications. According to actual needs, the lateral offset distance range of 0mm-5mm can meet the fine adjustment needs of most carton creasing positions.
[0028] The creasing part 32 has an arc-shaped creasing surface on the side away from the connecting strip 31. The radius of curvature of the arc-shaped creasing surface is adapted to the bending requirements of the carton to be creasing position, so that it fits the carton better during creasing, reduces the squeezing damage to the carton surface, avoids wrinkles or cracks, and improves the creasing quality and carton forming effect.
[0029] The width of both the creasing section 32 and the insert strip 33 is not less than 1.2mm. This ensures that both have sufficient structural strength and prevents bending or breakage due to stress during long-term use. At the same time, the appropriate width ensures clear and stable creasing, meeting the creasing quality requirements of carton forming.
[0030] The height of the connecting strip 31 is not less than the lateral width of the pressure section 32, and not less than the lateral width of the plug strip 33. The connecting strip 31 is high enough to provide stable support for the pressure section 32 and the plug strip 33, effectively resisting the force during pressure, preventing the connecting strip 31 from bending or breaking, enhancing the overall structural stability of the pressure line 3, and extending its service life.
[0031] Preferably, the height of the connecting strip 31 is not less than twice the lateral width of the creasing part 32 or the insert strip 33, which can adapt to creasing operations of cartons of various thicknesses, especially suitable for creasing scenarios of thicker or harder cartons, can better withstand creasing impact, ensure structural stability, and guarantee creasing accuracy.
[0032] Preferably, the connecting strip 31, the pressure part 32, and the plug strip 33 are integrally formed metal parts. The integrally formed metal structure eliminates connection gaps, improves the overall strength and deformation resistance of the pressure line 3, and can withstand long-term high-frequency pressure operations; the metal material has good wear resistance, which can extend service life and reduce replacement frequency and usage costs.
[0033] Combination Figure 5 If necessary, multiple U-shaped plug interfaces 331 with outward openings can be provided on the lower side of the plug bar 33. A plug bar bridge is provided between two adjacent plug interfaces 331. The mounting groove 21 includes multiple slots corresponding to the plug bar bridges, and each plug bar bridge is inserted into the corresponding slot.
[0034] If necessary, the width of the connector strip 33 can be set to be less than the width of the mounting groove 21, and the outer side of the connector strip 33 is also provided with an elastic buffer layer that cooperates with the inner sidewall of the mounting groove 21.
[0035] When in use, the distance between the pressing line position and the reference edge is... Figure 6 When the h1 dimension shown is reduced, the installation is as follows: Figure 7 The pressure line shown is 3'', and its distance is h3 (h3 Figure 6 When the h1 dimension shown increases, the installation is as follows: Figure 2 The pressure lines shown have a distance of h2 (h2>h1), where Figure 6 The pressure line 3' shown is a pressure line in the prior art. Figure 7 The pressure lines shown are 3'' and Figure 2 The pressure lines 3 shown are all from this application, and their... Figure 7 and Figure 2 The pressure lines shown can also be the same pressure line with different installation directions; furthermore, the pressure line 3 in this application has a rectangular or fan-shaped shape in its front view, and a rectangular structure is used when it needs to be installed along the axial direction of the roller 1 (see...). Figure 1 and Figure 5 When installation is required in a direction perpendicular to the axial direction of roller 1, a fan-shaped structure is adopted (see...). Figure 8 ).
Claims
1. A creasing mold for a carton cutting machine, comprising a roller (1) and an arc-shaped template (2) disposed on its outer surface, wherein an mounting groove (21) is provided on the arc-shaped template (2), and a creasing line (3) is inserted into the mounting groove (21), characterized in that: The pressure line (3) includes a connecting strip (31) and a pressure line part (32) on its upper side and a plug strip (33) on its lower side. The pressure line part (32) and the plug strip (33) extend along the length direction of the connecting strip (31), and the pressure line part (32) and the plug strip (33) are staggered on the same side in the lateral direction. The arc-shaped template (2) has a clearance groove (22) below the mounting groove (21) that communicates with the mounting groove (21). The plug strip (33) is vertically inserted into the mounting groove (21), and its lower end passes through the clearance groove (22) and abuts against the outer surface of the roller (1).
2. The creasing mold for a carton cutting machine as described in claim 1, characterized in that, The pressure part (32) is a strip structure parallel to the insertion strip (33), and the two have the same length.
3. The creasing mold for a carton cutting machine as described in claim 1, characterized in that, The two ends of the connecting strip (31), the pressure part (32) and the plug strip (33) are coplanar planes.
4. The creasing mold for a carton cutting machine as described in claim 1, characterized in that, The lateral offset distance between the pressure part (32) and the plug strip (33) is 0mm-5mm.
5. The creasing mold for a carton cutting machine as described in claim 1, characterized in that, The pressure part (32) has an arc-shaped pressure surface on the side away from the connecting strip (31).
6. The creasing mold for a carton cutting machine as described in claim 1, characterized in that, The height of the connecting strip (31) is not less than the lateral width of the pressure part (32) and not less than the lateral width of the plug strip (33).
7. The creasing mold for a carton cutting machine as described in claim 6, characterized in that, The height of the connecting strip (31) is not less than twice the lateral width of the pressure part (32) or the plug strip (33).
8. The creasing mold for a carton cutting machine as described in claim 1, characterized in that, The width of the clearance groove (22) is greater than the width of the connector strip (33), and the length is the same as the length of the connector strip (33).
9. The creasing mold for a carton cutting machine as described in claim 1, characterized in that, The inner side of the arc-shaped template (2) is in contact with the outer wall of the roller (1), and the distance between the bottom of the clearance groove (22) and the outer surface of the roller (1) is not greater than 0.5mm.
10. A creasing die for a carton cutting machine as described in any one of claims 1-9, characterized in that, The connecting strip (31), the pressure wire part (32), and the plug strip (33) are integrally formed metal parts.