Middle line pressing endpoint cutter type folding mechanism and packaging box
By designing the cutter type folding mechanism of the intermediate crimping end point, the cutting knife and crimping line dispersing the side stress of the corrugated paper, the problems of inconvenience and easy deformation of the existing corrugated paper folding structure are solved, and a more efficient and stable corrugated paper folding process is achieved. .
Patent Information
- Application Number
- CN202420875989.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-04-25
AI Technical Summary
The existing corrugated paper folding structure has problems such as inconvenient folding and easy to deform during the folding process.
A cutting-type folding mechanism of intermediate crimping end point cutter is designed, including a pressure bearing plate, a folding member, a knife line and a crimping line. The side forces are dispersed through the cutter and crimping line to form a triangular concave space for folding and cutting.
It realizes the convenient folding and stress dispersion of corrugated paper, avoids deformation and damage, and improves folding efficiency and product stability.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of corrugated paper folding, in particular to a middle pressing line end point cutter type folding mechanism and a packaging box. Background Art
[0002] Over the past half century, corrugated paper boxes have gradually replaced wooden boxes and other transport packaging containers with their superior performance and good processing performance, becoming the main force of transport packaging. At present, in the production process of corrugated paper boxes, it is necessary to fold and press the paperboards that constitute the paper boxes, but the existing corrugated paper folding structure has the problems of inconvenient folding and easy deformation during the folding process. Therefore, a middle press line end point cutter type folding mechanism and a packaging box are proposed. Utility Model Content
[0003] The utility model aims to overcome the shortcomings of the prior art and provide a middle pressing line end point cutter type folding mechanism and a packaging box which can be conveniently folded, dispersed in force and not easily deformed.
[0004] The utility model discloses a middle pressure line end point cutting knife type folding mechanism, which mainly comprises a pressure plate, a folding component is arranged on the pressure plate, the pressure plate is a bending structure, the folding component is arranged on the pressure plate, and comprises a knife line and a pressure line. The knife line is arranged in the vertical direction and separates the two side areas of the folding component on the pressure plate, and the pressure line is arranged in the horizontal direction and forms an inner concave space with a triangular cross section on the pressure plate. By using the utility model, a folding mechanism which is more convenient for folding corrugated paper and can relieve stress and is not easy to fold and deform can be provided.
[0005] Preferably, the triangular concave space is located at the angle of the pressure plate, which is conducive to folding and knife alignment during folding.
[0006] Preferably, a baffle connected to the pressure plate is provided in the triangular concave space, and the baffle is located at the longest side of the cross section of the triangular concave space, which facilitates cutting during folding.
[0007] Preferably, the pressure plate is provided with rounded corners at the bends, so that the force applied during folding can be dispersed through the rounded corners.
[0008] Preferably, the sum of the two angles formed by the triangular concave space and the horizontal side and the vertical side of the pressure plate is 90 degrees. This structure facilitates the effects of the knife line and the pressure line during folding.
[0009] Preferably, the size of the side of the triangular concave space on the pressure plate is less than 3 times the thickness of the folded material, so as to prevent the folded material from being damaged due to being too thick.
[0010] Preferably, two knife lines are provided on a single folding component; five pressure lines are provided on a single folding component, which are respectively placed in the middle position of the triangular concave space and at the connection between the baffle and the pressure plate; the knife line can accurately align the knife during folding to achieve complete cutting of the corrugated paper incision, and the pressure line facilitates bending and folding during folding.
[0011] Preferably, a circular arc is provided at the connection between the pressure plate and the baffle plate, and the circular arc is connected to the pressure plate in a convex shape.
[0012] Preferably, the pressure plate is provided with rounded corners at the bends, so that the force applied during folding can be dispersed through the rounded corners.
[0013] Preferably, the folding mechanism may be provided with several folding mechanisms at the bending part of the pressure-bearing plate, and the folding mechanisms are evenly arranged at the bending part of the pressure-bearing plate, so that more knife lines and pressure lines are formed, the corrugated structure is destroyed, and folding is easier.
[0014] Preferably, a packaging box is opened on both sides, and one or more intermediate pressure line end point cutter-type folding mechanisms as described above are provided on the four corners of the opening viewing angle.
[0015] Compared with related corrugated paper folding mechanisms, the utility model provides a middle pressure line end point cutter type folding mechanism and packaging box, the beneficial effects are: 1. This mechanism can disperse the side force through the cutter and the pressure line; 2. More knife lines and pressure lines make it more convenient to fold the corrugated paper; 3. This mechanism can form a local cutting angle at the top to fix the shape, which can disperse the force to a certain extent and prevent bulging; 4. When multiple arrangements of this mechanism are made, more knife lines and pressure lines are formed to destroy the corrugated structure and make folding easier. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of a three-dimensional structure of a single utility model.
[0017] Figure 2 It is a three-dimensional structure marking diagram of a single utility model.
[0018] Figure 3 It is a comparison diagram of the utility model in different folding situations.
[0019] Figure 4 It is a schematic diagram of multiple arrangements of the utility model.
[0020] Figure 5 Schematic diagram of packaging boxes of different types.
[0021] Description of the accompanying drawings: 1 knife line, 2 pressure line, 3 pressure plate, 4 triangular concave space. DETAILED DESCRIPTION
[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0023] like Figure 1 A middle pressure line end point cutter type folding mechanism, mainly arranged with a folding component on a pressure plate 3, the pressure plate 3 is a bending structure, mainly convenient for the folding of the corrugated board and the design of the folding mechanism, the folding mechanism mainly consists of a pressure line 2 and a knife line 1, the pressure line 2 is designed horizontally, the knife line 1 is designed vertically, the knife line 1 separates the pressure plate 3 from the designed folding mechanism, the folding action of the pressure line 2 forms a triangular concave space 4 on the pressure plate 3, the two angles formed by the horizontal side and the vertical side of the triangular concave space 4 on the pressure plate 3 are 9 0 degrees, and the length of the horizontal and vertical sides of the triangular concave space 4 on the pressure plate 3 should be less than 3 times the thickness of the folded material, otherwise the excessive deformation of the corrugated paper will cause tearing, breaking and other adverse conditions. Since the corners are easily squeezed and deformed, the folding mechanism is designed with rounded corners at the bends. The middle pressure line end point cutter folding mechanism disperses the lateral force of the corrugated paper during the folding process through the cutter and the pressure line. Since this middle pressure line end point cutter folding mechanism has more knife lines and pressure lines, it is convenient for the folding of corrugated paper.
[0024] like Figure 1 A middle pressure line end point cutter type folding mechanism, mainly arranged with a folding component on a pressure plate 3, the pressure plate 3 is a bending structure, mainly convenient for the folding of the corrugated cardboard and the design of the folding mechanism, the folding mechanism mainly consists of a pressure line 2 and a knife line 1, the pressure line 2 is designed horizontally, the knife line 1 is designed vertically, the knife line 1 separates the pressure plate 3 from the designed folding mechanism, the folding action of the pressure line 2 forms a triangular concave space 4 on the pressure plate 3, the triangular concave space 4 is respectively formed at two angles formed by the horizontal side and the vertical side on the pressure plate 3 It is 90 degrees, and the length of the horizontal and vertical sides of the triangular concave space 4 on the pressure plate 3 should be less than 3 times the thickness of the pressure plate, otherwise the excessive deformation of the corrugated paper will cause tearing, breaking and other adverse conditions. Since the corners are easily squeezed and deformed, the folding mechanism is designed with rounded corners at the bending parts. This intermediate pressure line end point cutter type folding mechanism disperses the lateral force of the corrugated paper during the folding process through the cutter and the pressure line. Since this intermediate pressure line end point cutter type folding mechanism has more knife lines and pressure lines, it is convenient for the folding of corrugated paper.
[0025] In the specific folding of corrugated paper, there are various thicknesses during folding. Now, two cases of single-layer and multi-layer are described. Generally, for single-layer paper, that is, corrugated paper with a thickness less than 0.5 mm, the thickness can be ignored during folding, and a 90-degree right angle is formed. When folding multi-layer corrugated cardboard, due to the extrusion deformation of the corners, a chamfer with a curvature is formed at the corners, such as Figure 2 The position where m is located in the figure. To prevent the corners from being extruded and deformed, the folding mechanism is designed with rounded corners at the bending positions, which better protects the folding of the corrugated paper from being damaged.
[0026] When specifically using an intermediate creasing end cutter type folding mechanism provided by the present utility model, in order to avoid problems such as tearing and breaking of the corrugated paper and enable better folding of the corrugated paper, an intermediate creasing end cutter type folding mechanism with different sizes can be selected according to the different thicknesses of the corrugated paper, which is convenient for better folding of the corrugated paper. Among them, the mechanism width, right-angle side, and number of mechanisms of an intermediate creasing end cutter type folding mechanism provided by the present utility model can all be changed according to actual needs. Among them, it is limited that the right-angle side size needs to satisfy that the right-angle side size is less than 2.91 times the thickness of the corrugated paper. The reasons are as follows: such as Figure 2 : Let m be the folding deformation amount, a be the right-angle side, and c be the hypotenuse, then we get: c + 2m = m + 2a; from Figure 2 According to the Pythagorean theorem: (a + m / 2) 2 +(a + m / 2) 2 = c 2 , and through comprehensive calculation, a = 2.91m.
[0027] In specific implementation, when the size of the right-angle side a of the triangle is too large, or the deformation amount of the cardboard is too large, it will cause situations such as tearing and breaking, such as Figure 3 A is the normal state, Figure 3 B is the situation of edge tearing and fracture, Figure 3 C is the situation of inward bending; now set the condition: the deformation amount m < the paper thickness d, m < d, that is, a / 2.91 < d, so a < 2.91d. Therefore, it is limited that the right-angle side size needs to satisfy that the right-angle side size is less than 2.91 times the thickness of the corrugated paper.
[0028] When stacking corrugated cardboard boxes, in the case of ordinary four-corner boxes without cut corners, the top of the lower box is subjected to the pressure of other boxes, and the side walls are stressed, and the box is prone to deformation and bulging; after oblique cutting of the corners, a cut-corner box is formed. When stressed, the increased creases enable the upper part to transmit the force horizontally, and the deformation is concentrated at the top, relieving the side wall pressure, but the top is prone to deformation; an intermediate creasing end cutter type folding mechanism provided by the present utility model can form a local cut corner at the top, which combines the advantages of ordinary four-corner boxes and ordinary cut-corner boxes, and avoids the disadvantages of force deformation of ordinary four-corner boxes and ordinary cut-corner boxes, that is, it relieves the pressure and fixes the shape, and can disperse the force to a certain extent to prevent bulging.
[0029] When the utility model provides a middle pressure line end point cutter type folding mechanism, compared with the common folding mechanisms in the market, when multiple arrangements of this structure mechanism are used, more knife lines and pressure lines are used to damage the corrugated structure, making it easier to fold. The utility model provides a middle pressure line end point cutter type folding mechanism, and multiple knife lines and pressure lines are designed. In a single folding mechanism of the utility model, two knife lines are designed and designed in the vertical direction, and five pressure lines are designed and designed in the horizontal direction. By designing multiple knife lines and pressure lines, it is beneficial to the knife alignment in mass production and it is more convenient to damage the structure of corrugated paper to achieve folding.
[0030] like Figure 4 As shown, the mechanism width L, the right-angle side a (satisfying the condition of 2.91 times the paper thickness), and the number of components can all be changed according to actual needs.
[0031] like Figure 5 The utility model is applied to packaging boxes with different size requirements. The utility model is applied to the corners of the packaging boxes, such as Figure 5 A is a packaging box folded by using a single middle pressing line end point cutter type folding mechanism provided by the utility model, such as Figure 5 B is a packaging box folded on a pressure plate using the utility model using three intermediate pressure line end point cutter type folding mechanism arrays provided by the utility model, such as Figure 5 C is a packaging box folded on a pressure plate using 8 arrays of middle pressing line end point cutter-type folding mechanisms provided by the utility model. Packing boxes of various shapes and structures can be formed according to different size changes, and even packing boxes of more shapes can be formed according to different sizes; packing boxes of various shapes and structures can be formed according to different packaging box requirements, and n cutting and pressing holes folded by the utility model can be arranged at equal intervals on the packaging box.
[0032] When the intermediate creasing line end point cutter-type folding mechanism provided by the utility model is used to fold corrugated paper, the creasing line 2 and the knife line 1 play a pivotal role. First, a special creasing line knife or creasing wheel is used to creasing the corrugated board to form a reserved crease so that the carton can be folded and made later. The creasing line treatment can make the carton more perfect and avoid problems caused by cardboard debris and deviation. The creasing line treatment is performed first, which can leave obvious creases on the cardboard, making the cutting line more accurate, the incision more neat, and the produced carton more perfect. The knife line can accurately align the knife when folding the corrugated paper to achieve complete cutting of the corrugated paper incision. At this time, the designed triangular concave space 4 provides a good spatial environment for cutting, so that the corrugated paper is effectively folded and cut.
[0033] In specific use, the intermediate pressing line end point cutter type folding mechanism provided by the utility model can be installed in a workbench with a supporting platform, and the corrugated paper can be folded by manual processing. The specific process is to manufacture the intermediate pressing line end point cutter type folding mechanism provided by the utility model through preliminary processing, and then install the utility model on the manual operation platform, and then place the corrugated paper on the platform by manpower and cooperate with the intermediate pressing line end point cutter type folding mechanism provided by the utility model, and perform pressing and cutting by manpower to obtain the folded corrugated paper. Compared with the traditional ordinary corrugated paper folding mechanism, the design of the folding mechanism is more convenient for folding the corrugated paper, but the manual operation method is more complicated.
[0034] During specific use, the intermediate crimping end point cutter-type folding mechanism provided by the utility model can be installed in a corrugated paper folding device with automated mechanical production, and the corrugated paper can be folded by automated processing. The specific process is to manufacture the intermediate crimping end point cutter-type folding mechanism provided by the utility model through preliminary processing, and then install the utility model in the automated production equipment. After installation and fixation, the corrugated paper is placed on the folding mechanism through the automated production equipment, and the corrugated board is crimped by a special crimping knife or crimping wheel to form a reserved crease, so as to facilitate the subsequent folding and production of the carton. The crimping process can make the molding of the carton more perfect and avoid problems caused by cardboard debris and deviation. The crimping process can be performed first, which can leave obvious creases on the cardboard, making the cutting line more accurate, the incision more neat, and the produced carton more perfect. The knife line can be accurately aligned with the knife when folding the corrugated paper, so as to achieve complete cutting of the corrugated paper incision. At this time, the designed triangular concave space provides a good spatial environment for cutting, so that the corrugated paper is effectively folded and cut. By installing an intermediate pressing line end point cutter folding mechanism provided by the utility model in the corrugated paper automated folding production equipment, not only the problem of low manual efficiency is avoided, but also the problem of tearing and breaking due to force problems in traditional corrugated paper folding machines is solved, and the folding of corrugated paper is more convenient.
[0035] In specific use, the intermediate crimping end point cutter-type folding mechanism provided by the utility model can be installed in a corrugated paper folding device with automated mechanical production, and the corrugated paper can be folded by automated processing. The specific process is to manufacture the intermediate crimping end point cutter-type folding mechanism provided by the utility model through preliminary processing, and then install the utility model in the automated production equipment. After installation and fixation, the corrugated paper is placed on the folding mechanism through the automated production equipment, the required corrugated cardboard is placed on the pressure plate, and the corrugated cardboard placed on the pressure plate is crimped by a special crimping knife or crimping wheel to form a reserved crease for the subsequent folding and production of the carton. The crimping process can make the molding of the carton more perfect and avoid problems caused by cardboard debris and deviation. The crimping process is performed first, which can leave obvious creases on the cardboard, making the cutting line more accurate, the incision more neat, and the produced carton more perfect. The knife line can accurately align the knife when folding the corrugated paper, and the complete cutting of the corrugated paper cutout can be achieved. At this time, the designed triangular concave space provides a good space environment for cutting, so that the corrugated paper is effectively folded and cut. By adding a middle pressure line end point cutter folding mechanism provided by the utility model to the corrugated paper automatic folding production equipment, it not only avoids the problem of low labor efficiency, but also solves the tearing and breaking problems caused by force problems in traditional corrugated paper folding machines, and makes the folding of corrugated paper more convenient. When multiple arrangements of the utility model are arranged, more knife lines and pressure lines are created to destroy the corrugated structure, making it easier to fold.
Claims
1. A middle crimping end point cutter type folding mechanism, characterized in that: The pressure bearing plate (3) comprises a pressure bearing plate (3), on which at least one folding component is arranged, the pressure bearing plate (3) is a bending structure, the folding component is arranged at the bending angle of the pressure bearing plate (3), and comprises a knife line (1) and a pressure line (2), the knife line (1) is arranged in the vertical direction and separates the two side areas of the folding component on the pressure bearing plate (3), and the pressure line (2) is arranged in the horizontal direction and forms an inner concave space (4) with a triangular cross section at the bending part of the pressure bearing plate (3).
2. The intermediate pressure line end point cutter type folding mechanism according to claim 1, characterized in that: The triangular concave space (4) is located at the angle of the pressure bearing plate (3).
3. The intermediate pressure line end point cutter type folding mechanism according to claim 1 or 2, characterized in that: A baffle plate connected to the pressure bearing plate (3) is arranged in the triangular concave space (4), and the baffle plate is located at the longest side of the cross section of the triangular concave space (4).
4. The intermediate crimping end point cutter type folding mechanism according to claim 1, characterized in that: The pressure bearing plate (3) is provided with a rounded corner at the bending position.
5. The intermediate crimping end point cutter type folding mechanism according to claim 1, characterized in that: The sum of the two included angles formed by the triangular concave space (4) and the horizontal side and the vertical side of the pressure plate (3) is 90°.
6. The intermediate crimping end point cutter type folding mechanism according to claim 1, characterized in that: The length of the right-angled side of the triangular concave space (4) is less than 3 times the thickness of the folded material.
7. The intermediate crimping end point cutter type folding mechanism according to claim 3, characterized in that: Two knife lines (1) are arranged in a single folding component; five pressure lines (2) are arranged in a single folding component, which are respectively placed in the middle position of the triangular concave space (4) and at the connection between the baffle plate and the pressure plate (3).
8. The intermediate crimping end point cutter type folding mechanism according to claim 3, characterized in that: A circular arc is provided at the connection between the pressure-bearing plate (3) and the baffle plate, and the circular arc is connected to the pressure-bearing plate (3) in a convex shape.
9. The intermediate crimping end point cutter type folding mechanism according to claim 1, characterized in that: The folding mechanism comprises a plurality of identical folding components, and the folding components are arranged at equal intervals at the bending position of the pressure bearing plate (3).
10. A packaging box with openings on both sides, characterized in that: One or more intermediate pressure line end point cutter-type folding mechanisms as described in any one of claims 1 to 9 are provided on the four corners of the opening viewing angle.