A corrugated paper box for tobacco leaf conversion and its production method and equipment

Abstract

The present application relates to the technical field of corrugated paper boxes, specifically a corrugated paper box for tobacco leaf transfer, comprising corrugated cardboard, the corrugated cardboard comprising a layer of face paper and at least one layer of corrugated paper, the corrugated paper comprising a corrugated core paper and a lining paper, the corrugated core paper and the lining paper, as well as the face paper and the corrugated paper, being glued together by glue, the corrugated cardboard being folded and fixed end to end to form a rectangular cylindrical box body, the side walls of the box body extending to both ends to form a swing cover, the connection between the swing cover and the box body being pressed with a crease, a plurality of elastic support members being provided between the corrugated core paper and the lining paper, at least one elastic support member being provided at the crease between the swing cover and the box body, the elastic support member being able to bend in a direction perpendicular to the crease at the connection between the swing cover and the box body. By providing the elastic support members, the present application facilitates the use of vibration compaction to load tobacco and shredded tobacco, thereby extending the service life of the tobacco leaf transfer corrugated paper box.

Description

Technical Field

[0001] The present application relates to the technical field of corrugated paper boxes, and in particular to a corrugated paper box for tobacco leaf conversion and a production method thereof. Background Art

[0002] Corrugated boxes are made from a composite of paper and corrugated paper. Due to their excellent performance, they are widely used in everyday life. During the transportation of expanded tobacco at tobacco factories, corrugated boxes are also commonly used for packaging. To improve transportation efficiency, the tobacco needs to be compacted to increase the loading capacity. However, direct pressure can damage the tobacco, so vibration compaction is often used. During the compaction process, the flap of the corrugated box is erected to form a baffle to prevent the tobacco from scattering.

[0003] For environmental protection and cost-saving reasons, corrugated boxes are usually reused multiple times. However, after repeated use, the crease strength at the connection of the swing cover decreases, and the swing cover is not easy to remain upright, which causes certain troubles for the compaction and filling of tobacco. Summary of the Invention

[0004] In view of the shortcomings of the existing technology, the purpose of this application is to provide a corrugated paper box for tobacco transfer with good reusability.

[0005] The above-mentioned application objectives of this application are achieved through the following technical solutions:

[0006] A corrugated paper box for tobacco leaf transfer, comprising corrugated cardboard, the corrugated cardboard comprising a layer of face paper and at least one layer of corrugated paper, the corrugated paper comprising a corrugated core paper and a lining paper, the corrugated core paper and the lining paper and the face paper and the corrugated paper being glued together by glue, the corrugated cardboard being folded and connected end to end to form a rectangular cylindrical box body, the side walls of the box body extending to both ends to form swing covers, the connection between the swing covers and the box body being pressed with creases, and characterized in that:

[0007] A plurality of elastic supporting members are provided between the corrugated core paper and the inner paper;

[0008] At least one elastic support member is provided at the fold of the swing cover and the box body, and the bending direction of the elastic support member is perpendicular to the fold of the connection between the swing cover and the box body.

[0009] Optionally, the elastic support member is a strip-shaped steel sheet, the short side of the elastic support member is arc-shaped, and the center of the short side of the elastic support member faces the outside of the box.

[0010] Optionally, at least one end of the elastic support member is flat on a surface close to the inner paper.

[0011] Optionally, the portion of the elastic support member located on the swing cover side is glued to the lining paper, and the portion located on the corrugated core paper side is a free end.

[0012] Optionally, the center of the short side of the elastic support member faces the corrugated core paper.

[0013] Optionally, flexible plastic strips are bonded on both sides of the connection fold between the swing cover and the box body, and the flexible plastic strips cover the connection fold between the swing cover and the box body.

[0014] Optionally, when the corrugated cardboard has more than three layers, the elastic support member is provided on only one layer of the corrugated cardboard.

[0015] Optionally, when the corrugated cardboard has more than three layers, the elastic support member is located near the middle of the corrugated paper.

[0016] A method for producing corrugated paper boxes for tobacco leaf conversion, comprising:

[0017] a. Place the paper roll on the paper stand and place the free end of the paper roll in the working position;

[0018] b. The base paper of the board paper enters the preheating equipment for preheating;

[0019] c. The base paper of the corrugated core paper layer and the base paper of the lining paper layer enter the single-facer, and the base paper of the face paper layer enters the double-facer;

[0020] d. The corrugated core paper layer is pressed by the corrugated roller of the single-face machine to form the corrugated core paper layer, and the inner paper layer base paper is bonded with elastic support members at intervals;

[0021] e. The corrugated core paper layer and the lining paper layer are glued together by a single-face machine;

[0022] f. The corrugated core paper layer and the lining paper layer enter the double-facer and are glued with the surface paper layer through the double-facer to form corrugated board;

[0023] g. The corrugated cardboard enters the cutting equipment and is cut into appropriate sizes;

[0024] h. The corrugated cardboard enters the printing and slotting equipment for printing, slotting, corner cutting, creasing and edge trimming;

[0025] i. Use the box nailing equipment to staple the corrugated cardboard together.

[0026] A device for producing corrugated paper boxes for tobacco leaf conversion, comprising: a silo, a feeding trough may be provided on the top of the silo, a pushing guide rail is provided on the top of the trough, a pushing block is slidably mounted on the pushing guide rail, the pushing block is driven by an electric push rod or other driving member, a loading spring is provided at the bottom of the silo, a feeding roller is rotatably mounted on one side of the silo, at least two feeding parts are fixed to a circumferential array on the side of the feeding roller, magnets are provided at both ends of the feeding parts, a glue coating roller is provided on one side of the feeding roller, a glue pool is provided below the glue coating roller, a lining paper layer is located below the feeding roller, and both the feeding roller and the glue coating roller are driven by a motor.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] By setting up elastic support parts, the swing cover can be supported when it loses its supporting function at the connection position with the box body, so that the swing cover can remain upright, which is convenient for loading tobacco leaves and shredded tobacco by vibration and compaction, thereby extending the service life of the tobacco transport corrugated paper box.

[0029] When the swing cover is closed, the bending of the elastic support may cause pulling on the adhesive part of the elastic support. By setting the part on one side of the corrugated core paper as a free end, when the elastic support part bends and causes pulling, the free end can move with it, reducing the possibility of damage to the corrugated core paper guard or lining paper caused by pulling. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of a corrugated paper box according to an embodiment of the present application;

[0031] Figure 2 yes Figure 1 A magnified schematic diagram of part A;

[0032] Figure 3 This is a schematic diagram of the installation structure of the elastic support member according to an embodiment of the present application;

[0033] Figure 4 This is a schematic diagram of the elastic support member installation structure from another perspective of an embodiment of the present application.

[0034] Reference numerals: 1, corrugated cardboard; 11, face paper; 12, corrugated paper; 121, corrugated core paper; 122, lining paper;

[0035] 2. Box body;

[0036] 3. Shake the lid;

[0037] 4. Elastic support member;

[0038] 51. Material bin; 511. Material chute; 512. Loading spring; 521. Pushing guide rail; 522. Pushing block; 53. Material reclaiming roller; 531. Material reclaiming unit; 54. Glue coating roller; 541. Glue tank. DETAILED DESCRIPTION

[0039] The present application is further described in detail below with reference to the accompanying drawings.

[0040] See also Figure 1 and Figure 2 , is a corrugated cardboard box for tobacco leaf transfer disclosed in an embodiment of the present application, comprising a corrugated cardboard 1, the corrugated cardboard 1 comprising a layer of face paper 11 and at least one layer of corrugated paper 12, the corrugated paper 12 comprising a corrugated core paper 121 and a lining paper 122, the corrugated core paper 121 and the lining paper 122 as well as the face paper 11 and the corrugated paper 12 are all glued together by glue, the corrugated cardboard 1 is folded and fixed end to end to form a rectangular cylindrical box body 2, the side walls of the box body 2 are extended to both ends to form a swing cover 3, the connection between the swing cover 3 and the box body 2 is pressed with a crease, a plurality of elastic support members 4 are arranged between the corrugated core paper 121 and the lining paper 122, at least one elastic support member 4 is arranged at the crease between the swing cover 3 and the box body 2, and the bending direction of the elastic support member 4 is perpendicular to the crease at the connection between the swing cover 3 and the box body 2.

[0041] Specifically, an elastic support member 4 is installed at the fold between the swing cover 3 and the box body 2 , and the elastic support member 4 supports the swing cover 3 .

[0042] In this way, by setting the elastic support member 4, the swing cover 3 is supported when the swing cover 3 loses its supporting function at the connection position with the box body 2, so that the swing cover 3 remains upright, which is convenient for loading tobacco leaves and shredded tobacco by vibration and compaction, thereby extending the service life of the tobacco transport corrugated paper box.

[0043] In some feasible embodiments, there are eight swing covers 3 at both ends of the box body 2, four of which are at the top and four at the bottom. The swing covers 3 at the bottom are in a normally closed state, and the elastic support member 4 can be only provided on the swing cover 3 at the top.

[0044] The elastic support member 4 is installed between the corrugated core paper 121 and the inner paper 122 , and both sides of the elastic support member 4 are glued to the corrugated core paper 121 and the inner paper 122 respectively.

[0045] The following is a further introduction based on specific usage scenarios.

[0046] Since the elastic support member 4 can be bent in a direction perpendicular to the fold at the connection between the swing cover 3 and the box body 2, the elastic support member 4 bends along with the swing cover 3 when the swing cover 3 is closed. When the swing cover 3 is upright, the elastic support member 4 returns to an upright state to support the swing cover 3.

[0047] As a specific embodiment of a tobacco leaf transfer corrugated paper box provided in the application, the elastic support member 4 is a strip of steel sheet, the short side of the elastic support member 4 is arc-shaped, and the center of the short side of the elastic support member 4 faces the outside of the box body 2.

[0048] Generally speaking, the elastic support member 4 is a strip of steel sheet with an arc-shaped cross-section. When the swing cover 3 is closed, the elastic support member 4 at the connection fold between the swing cover 3 and the box body 2 is changed from an arc surface to a plane, which is easier to bend and reduces the impact on the closing of the swing cover 3. When the swing cover 3 is upright, the elastic support member 4 at the connection fold between the swing cover 3 and the box body 2 is restored from a plane to an arc shape. Compared with the flat state, the arc shape can provide better support in the axial direction.

[0049] In some feasible embodiments, the elastic support member 4 can be made of 0# first-grade steel strip, which is bent into an arc shape. The elastic support member 4 is in the shape of a commonly used tape measure.

[0050] In some feasible embodiments, the elastic support member 4 may also be a steel mesh.

[0051] Combined with the specific usage scenario, the porous structure of the wire mesh makes the elastic support member 4 lighter, reducing the impact on the weight of the corrugated cardboard box. At the same time, the wire-like structure is easier to bend than the sheet structure, reducing the impact on the closing of the swing cover 3.

[0052] Furthermore, at least one end of the elastic support member 4 close to the inner paper 122 is a flat surface.

[0053] It should be understood that by setting one end as a plane, the attachment plane of the elastic support member 4 is increased during gluing, making the elastic support member 4 more secure.

[0054] Furthermore, the portion of the elastic support member 4 located on one side of the swing cover 3 is glued to the lining paper 122 , and the portion located on one side of the corrugated core paper 121 is a free end.

[0055] In combination with the specific usage scenario, when the swing cover 3 is closed, the bending of the elastic support member 4 may cause pulling on the adhesive part of the elastic support member 4. By setting the part on one side of the corrugated core paper 121 as a free end, when the elastic support member 4 bends and causes pulling, the free end can follow the movement, reducing the possibility of damage to the corrugated core paper 121 or the inner paper 122 caused by pulling.

[0056] In some feasible embodiments, the thickness of the elastic support member 4 does not exceed 1 mm.

[0057] It should be understood that the elastic support member 4 is arranged between the corrugated core paper 121 and the inner paper 122. If the thickness of the elastic support member 4 is too large, it may cause the inner paper 122 or the corrugated core paper 121 to bulge out more at that position, affecting its use. At the same time, in the production process of the corrugated cardboard box, it is also necessary to go through steps such as cutting and slotting. The elastic support member 4 with too large a thickness may have a greater impact on the cutting and slotting processes.

[0058] Furthermore, the center of the short side of the elastic support member 4 faces the corrugated medium paper 121 .

[0059] It should be understood that the elastic support member 4 is arc-shaped. The center of the short side of the elastic support member 4 is facing the corrugated core paper 121, so that the long sides on both sides of the elastic support member 4 are placed in the curved space of the corrugated core paper 121, reducing the influence of the thickness of the elastic support member 4 on the overall thickness of the corrugated paper 12.

[0060] Furthermore, when the corrugated cardboard 1 has more than three layers, only one layer of corrugated paper 12 in the corrugated cardboard 1 is provided with the elastic support member 4 .

[0061] Furthermore, when the corrugated cardboard 1 is a corrugated cardboard 1 with more than three layers, the elastic support member 4 is located near the middle corrugated paper 12.

[0062] It should be understood that arranging the elastic support member 4 in the middle position is more conducive to supporting the swing cover 3.

[0063] As a specific embodiment of a corrugated paper box for tobacco diversion provided in the application, flexible plastic strips are adhered on both sides of the connection fold between the swing cover 3 and the box body 2, and the flexible plastic strips cover the connection fold between the swing cover 3 and the box body 2.

[0064] It should be understood that by providing a flexible plastic strip, the strength of the fold is increased, the possibility of damage to the fold due to repeated use is reduced, and the possibility of the elastic support member 4 bending and breaking the fold is reduced.

[0065] In some possible implementations, the flexible plastic strip is a conventional adhesive tape.

[0066] The present application also provides a method for producing the above-mentioned tobacco-recycled corrugated paperboard box, comprising:

[0067] a. Place the paper roll on the paper stand and place the free end of the paper roll in the working position;

[0068] b. The base paper of the board paper enters the preheating equipment for preheating;

[0069] c. The 121-layer base paper of corrugated core paper and the 122-layer base paper of lining paper enter the single-facer, and the 11-layer base paper of face paper enters the double-facer;

[0070] d. The corrugated core paper 121 layers are pressed by the corrugating roller of the single-face machine to form the corrugated core paper 121 layers, and the lining paper 122 layers are bonded with the elastic support members 4 at intervals;

[0071] e. The corrugated core paper 121 layer and the lining paper 122 layer are glued together by a single-face machine;

[0072] f. The corrugated medium paper 121 layer and the lining paper 122 layer enter the double-facer and are glued with the face paper 11 layer by the double-facer to form the corrugated board 1;

[0073] g. The corrugated cardboard 1 enters the cutting device and is cut into appropriate sizes;

[0074] h. The corrugated cardboard 1 enters the printing and slotting equipment for printing, slotting, corner cutting, creasing and edge trimming;

[0075] i. Stapling the corrugated cardboard 1 end to end by stapling equipment.

[0076] In combination with the specific usage scenario, in step d, the elastic support member 4 is bonded to the inner paper 122 layer. When the inner paper 122 layer is glued to the corrugated core paper 121 layer, the elastic support member 4 is glued to the corrugated core paper 121 layer; installing the elastic support member 4 in this step simplifies the installation and is conducive to the automation of production.

[0077] In order to facilitate the understanding of the above production method, the embodiment of the present application also provides a device for producing corrugated paper boxes for tobacco leaf conversion, including an automatic installation structure of an elastic support member 4, see Figure 3 and Figure 4 , including a silo 51, a feeding trough 511 may be provided on the top of the silo 51, a pushing guide rail 521 is provided on the top of the feeding trough 511, a pushing block 522 is slidably installed on the pushing guide rail 521, and the pushing block 522 is driven by an electric push rod or other driving parts. A loading spring 512 is provided at the bottom of the silo 51, and a feeding roller 53 is rotatably installed on one side of the silo 51. At least two feeding parts 531 are fixed to the circumferential array on the side of the feeding roller 53, and magnets are provided at both ends of the feeding part 531. A glue coating roller 54 is provided on one side of the feeding roller 53, and a glue pool 541 is provided below the glue coating roller 54. The lining paper 122 layer is located below the feeding roller 53, and the feeding roller 53 and the glue coating roller 54 are both driven by a motor.

[0078] When in use, the elastic support member 4 is placed in the material bin 51 and supported to the top by the loading spring 512. The pushing block 522 presses down on the upper side of the elastic support member 4 on the top layer, and the elastic support member 4 is pushed out by the driving member. The feeding roller 53 is set on the side of the material bin 51 that pushes out the elastic support member 4. The pushed out elastic support member 4 is attracted by the magnets set at both ends of the feeding part 531. The feeding roller 53 rotates through the glue coating roller 54, and one side of the elastic support member 4 is glued by the glue coating roller 54. The feeding roller 53 rotates again, and the elastic support member 4 is bonded to the inner paper 122 layer below the feeding roller 53.

[0079] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be covered by the present application.

Claims

1. A corrugated paper box for tobacco leaf transfer, comprising a corrugated paperboard (1), wherein the corrugated paperboard (1) comprises a layer of face paper (11) and at least one layer of corrugated paper (12), wherein the corrugated paper (12) comprises a corrugated core paper (121) and an inner paper (122), wherein the corrugated core paper (121) and the inner paper (122) and the face paper (11) and the corrugated paper (12) are glued together by glue, wherein the corrugated paperboard (1) is folded and fixedly connected end to end to form a rectangular cylindrical box body (2), wherein the side walls of the box body (2) extend toward both ends to form a swing cover (3), wherein a crease is pressed at the connection between the swing cover (3) and the box body (2), and wherein: A plurality of elastic support members (4) are provided between the corrugated core paper (121) and the inner paper (122); At least one elastic support member (4) is provided at the fold of the swing cover (3) and the box body (2), and the elastic support member (4) can be bent in a direction perpendicular to the fold of the connection between the swing cover (3) and the box body (2); The portion of the elastic support member (4) located on one side of the swing cover (3) is glued to the inner paper (122), and the portion located on one side of the corrugated core paper (121) is a free end; The center of the short side of the elastic support member (4) faces the corrugated core paper (121).

2. The corrugated paper box for tobacco leaf transfer according to claim 1, characterized in that: The elastic support member (4) is a strip-shaped steel sheet, the short side of the elastic support member (4) is arc-shaped, and the center of the short side of the elastic support member (4) faces the outside of the box body (2).

3. The corrugated paper box for tobacco leaf transfer according to claim 2, characterized in that: At least one end of the elastic support member (4) close to the inner paper (122) is a flat surface.

4. The corrugated paper box for tobacco leaf transfer according to claim 1, characterized in that: Flexible plastic strips are bonded to both sides of the connection fold between the swing cover (3) and the box body (2), and the flexible plastic strips cover the connection fold between the swing cover (3) and the box body (2).

5. The corrugated paper box for tobacco leaf transfer according to claim 1, characterized in that: When the corrugated cardboard (1) has more than three layers, only one layer of the corrugated paper (12) in the corrugated cardboard (1) is provided with the elastic support member (4).

6. The corrugated paper box for tobacco leaf transfer according to claim 5, characterized in that: When the corrugated cardboard (1) is a corrugated cardboard (1) with more than three layers, the elastic support member (4) is located near the middle corrugated paper (12).

7. A method for producing a corrugated paper box for tobacco leaf diversion, adapted to a corrugated paper box for tobacco leaf diversion as claimed in any one of claims 1 to 6, characterized in that: include: a. Place the paper roll on the paper stand and place the free end of the paper roll in the working position; b. The base paper of the board paper enters the preheating equipment for preheating; c. The corrugated core paper (121) layer and the lining paper (122) layer enter the single-sided machine, and the surface paper (11) layer enters the double-sided machine; d. The corrugated core paper (121) layer is pressed by a single-facer corrugating roller to form a corrugated core paper (121) layer, and the inner paper (122) layer is bonded with an elastic support member (4) at intervals; e. The corrugated core paper (121) layer and the lining paper (122) layer are glued together by a single-sided machine; f. The corrugated core paper (121) layer and the lining paper (122) layer enter the double-face machine and are glued with the surface paper (11) layer through the double-face machine to form a corrugated board (1); g. The corrugated cardboard (1) enters the cutting equipment and is cut into appropriate sizes; h. Corrugated cardboard (1) enters the printing and slotting equipment for printing, slotting, corner cutting, line pressing and edge trimming; i. Use the nailing equipment to nail the corrugated paper (1) board together at the ends.

8. A device for producing corrugated paper boxes for tobacco leaf diversion, using the method for producing corrugated paper boxes for tobacco leaf diversion according to claim 7, characterized in that: The invention comprises a material bin (51), a material taking trough (511) may be provided on the top of the material bin (51), a material pushing guide rail (521) is provided on the top of the material taking trough (511), a material pushing block (522) is slidably mounted on the material pushing guide rail (521), the material pushing block (522) is driven by an electric push rod or other driving member, a material loading spring (512) is provided at the bottom of the material bin (51), a material taking roller (53) is rotatably mounted on one side of the material bin (51), at least two material taking parts (531) are fixed in a circumferential array on the side of the material taking roller (53), magnets are provided at both ends of the material taking part (531), a glue coating roller (54) is provided on one side of the material taking roller (53), a glue pool (541) is provided below the glue coating roller (54), a lining paper (122) layer is located below the material taking roller (53), and both the material taking roller (53) and the glue coating roller (54) are driven by a motor.

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