Environment-friendly carton forming and processing technology

Abstract

The invention discloses an environment-friendly carton forming and processing technology which comprises the following steps that plant fiber raw materials such as wheat straw, reed, straw, wood and the like are processed into paper pulp meeting requirements through a mechanical pulping method (such as a stone and wood pulp grinding method and a disc mill pulping method); the collected waste paper is subjected to crushing, cleaning, deinking, screening, impurity removal and the like, so that the waste paper can be reformed into paper pulp suitable for manufacturing cartons. According to the environment-friendly carton forming and processing technology, the filter screen plate is used for conducting impurity separation on pulp, the situation that the pulp contains excessive impurities such as wood chips and bark is avoided, and the processing and forming quality of the environment-friendly carton is improved; and excessive impurities such as wood chips and barks can be concentrated to the upper end part of the slurry filter tank along the inclined surface of the filter screen plate and concentrated into the waste box from the inclined area of the upper end part of the slurry filter tank, so that the impurities are convenient to clean.

Description

Technical Field

[0001] The invention relates to the technical field of environmentally friendly carton forming and processing, and in particular to an environmentally friendly carton forming and processing technology. Background Art

[0002] Environmentally friendly cartons refer to cartons made of environmentally friendly materials and have recyclable and degradable properties. With the continuous improvement of global awareness of environmental protection, green packaging has become the development trend of the carton industry. The design concept of environmentally friendly cartons is mainly to reduce resource consumption and environmental pollution. By adopting recyclable and degradable materials and optimizing packaging design, the dual goals of resource conservation and environmental protection can be achieved.

[0003] At present, a series of process flows are used to produce environmentally friendly cartons, and the quality of environmentally friendly cartons is closely related to each process flow. If the impurity content of the residual slurry is too high, it will affect the quality of the slurry, thereby affecting the appearance and performance of the carton. The slurry needs to be processed to ensure its quality. Therefore, we proposed an environmentally friendly carton forming and processing technology to solve the above-mentioned problems. Summary of the invention

[0004] The purpose of the present invention is to provide an environmentally friendly carton forming and processing technology to solve the problem raised in the above background technology that the residual impurity content of the currently produced slurry is too high, which will affect the quality of the slurry and thus affect the appearance and performance of the carton, and the slurry needs to be processed to ensure the quality of the slurry.

[0005] To achieve the above object, the present invention provides the following technical solution: an environmentally friendly carton forming and processing technology, comprising the following steps:

[0006] 1. Material selection

[0007] (1) Waste paper recycling

[0008] Such as old newspapers, old cartons, old books, etc.

[0009] (2) Environmentally friendly base paper

[0010] Such as wood pulp paperboard, corn starch paper;

[0011] 2. Paperboard Preparation

[0012] (1) Pulping process of plant fiber raw materials

[0013] Processing plant fiber raw materials into pulp that meets the requirements through mechanical pulping methods (such as stone grinding wood pulping method and disc grinding machine pulping method), plant fiber raw materials such as wheat straw, reed, rice straw, wood, etc.;

[0014] (2) Waste paper pulping process

[0015] The collected waste paper is crushed, cleaned, de-inked, screened, and impurities removed so that it can be re-formed into pulp suitable for making cartons;

[0016] (3) Slurry treatment

[0017] A servo motor is installed at the left rear of the slurry filtration tank, and the output end of the servo motor is connected to a screw rod. When the servo motor is powered on, the servo motor is controlled to rotate forward, thereby driving the screw rod to rotate. The outer side of the screw rod is threadedly connected to a side plate, and the screw rod drives the side plate to move downward. A filter screen plate is installed at the lower end of the side plate, and the ends of the side plates away from the screw rod are penetrated by support rods. The side plates drive the filter screen plate to move downward, and the other ends of the side plates slide on the support rods, so that the filter screen plate moves stably downward to the bottom of the slurry filtration tank, and the slurry is put into the slurry filtration tank. After the slurry is put, the servo motor can be controlled to rotate forward. The servo motor reverses, thereby controlling the screw rod to reverse, and the screw rod drives the side plate to move up, thereby controlling the filter screen plate to move up, and the filter screen plate separates impurities contained in the slurry, such as wood chips, bark and other impurities that exceed the standard. The impurities stay on the filter screen plate and follow the filter screen plate to move up, and when the filter screen plate gradually moves to be flush with the upper end of the slurry filter tank, the impurities slide along the inclined surface of the filter screen plate and the slurry filter tank to the left and right ends. Waste boxes are installed at both ends of the slurry filter tank, and the impurities are collected in the waste box. Later, the impurities can be cleaned by opening the sealed door on the side of the waste box;

[0018] The side of the side plate is provided with a through groove, and a connecting plate and a mounting plate are installed under the filter screen plate, and a knocking rod is connected to the mounting plate through a spring, and a protrusion is installed on the inner wall of the slurry filter tank. When the filter screen plate moves up, the knocking rod moves up synchronously, and when the knocking rod contacts the protrusion, the protrusion can push the knocking rod to move, and the knocking rod squeezes and accumulates force on the spring, so that the knocking rod knocks on the connecting plate, thereby realizing the vibration of the filter screen plate, and when the position of the knocking rod is staggered with the position of the protrusion, the spring can control the knocking rod to reset and move, thereby realizing the reciprocating knocking of the knocking rod, and the vibration force makes the impurities on the filter screen plate quickly concentrate to the left and right ends of the slurry filter tank, so as to facilitate their concentration in the waste box, and can avoid clogging of the filter screen plate, thereby realizing rapid filtration of the slurry;

[0019] (4) Cardboard forming

[0020] The paper machine evenly distributes the pulp on a moving screen, the water is slowly filtered out, the fibers are interwoven together, and after being pressed and dried, paperboard is formed;

[0021] 3. Die cutting and creasing

[0022] (1) Die-cutting process

[0023] Through the die-cutting machine, using specially made molds, the cardboard is cut into the required shape and size. The flat die-cutting machine is used to cut the carton parts with regular shapes and smaller sizes, and the arc die-cutting machine is used to cut the carton parts with special shape requirements;

[0024] (2) Indentation operation

[0025] Use an automatic creasing machine to crease the cardboard at the part that needs to be folded;

[0026] 4. Folding and bonding

[0027] Fold the creased cardboard accurately and glue the edges of the folded cardboard together;

[0028] 5. Flatten

[0029] Use special flattening equipment to apply appropriate pressure to make the various surfaces of the carton fit more closely, reduce the warping and deformation of the carton, and achieve a good appearance effect;

[0030] 6. Finished product testing

[0031] (1) Surface defect screening

[0032] Check the surface for oil, stains, and scratches, and examine the corners of the cartons for burrs and debris, by visual inspection under bright light or by random inspection using electronic testing equipment;

[0033] (2) Dimension measurement

[0034] Regularly check the size of cartons on the production line. Once a deviation is found, adjust the parameters of the production equipment in a timely manner to ensure that it is consistent with the design specifications. If the inner box size does not meet the requirements, it may cause the product to shake or collide during transportation, affecting product safety;

[0035] (3) Load-bearing capacity test

[0036] The packing compression test is used to simulate the pressure that cartons are subjected to during stacking or transportation, and to observe whether the cartons will deform or break.

[0037] Preferably, the corn starch paper is made of a mixture of corn starch and cellulose, is relatively light, has good toughness, is highly pressure-resistant, and can be naturally degraded in a short time.

[0038] Preferably, the waste paper can be burned to determine the impurity content in the waste paper. A certain amount of waste paper sample is burned under specified conditions, and the proportion of remaining residue is calculated to obtain the purity of the waste paper. High-purity waste paper can provide a more uniform fiber source, which helps to produce cartons with stable quality.

[0039] Preferably, the left and right end surfaces of the slurry filter tank are distributed in an inclined shape, and the end of the slurry filter tank is inclined toward the waste box.

[0040] Preferably, the upper end surface of the side plate is an inclined structure, and the position of the through groove opened on the side surface of the side plate is arranged corresponding to the position of the protrusion.

[0041] Preferably, the filter screen plate and the slurry filter tank form an up-and-down sliding structure, and the upper end surface of the filter screen plate is distributed in an inclined shape.

[0042] Preferably, the ends of the knocking rod are all in a smooth arc shape, the knocking rod and the protrusion are located in the same vertical plane, and the protrusion is an arc-shaped structure.

[0043] Compared with the prior art, the beneficial effects of the present invention are: the environmentally friendly carton forming and processing technology;

[0044] 1. Improve the quality of environmentally friendly carton molding products by screening surface defects, measuring dimensions and testing load-bearing capacity of environmentally friendly carton molding products, discover problems in a timely manner, take timely measures and reduce losses;

[0045] 2. Use the filter screen to separate impurities from the slurry to avoid impurities exceeding the standard such as sawdust and bark in the slurry, improve the quality of environmentally friendly carton processing, and by driving the filter screen upward, impurities exceeding the standard such as sawdust and bark can be concentrated along the inclined surface of the filter screen to the upper end of the slurry filter tank, and then concentrated from the inclined area of ​​the upper end of the slurry filter tank to the waste box, which is convenient for cleaning the impurities;

[0046] 3. When the filter screen plate for separating impurities from the slurry moves upward, the knocking rod can be pushed by the convex block so that the knocking rod knocks the connecting plate to achieve vibration of the filter screen plate. The vibration force causes the impurities on the filter screen plate to quickly concentrate to the left and right ends of the slurry filter tank, making it easier to concentrate them in the waste box and avoiding clogging of the filter screen plate, thereby achieving rapid filtration of the slurry. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0048] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0049] Figure 3 It is a rear view structural schematic diagram of the present invention;

[0050] Figure 4 This is a schematic diagram of the structure of the filter screen plate of the present invention;

[0051] Figure 5 It is a schematic diagram of the structure of the knocking rod of the present invention. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0053] See also Figure 1-Figure 5 The present invention provides the following technical solution: an environmentally friendly carton forming and processing technology, comprising the following steps:

[0054] 1. Material selection

[0055] (1) Waste paper recycling

[0056] Such as old newspapers, old cartons, old books, etc.

[0057] (2) Environmentally friendly base paper

[0058] Such as wood pulp paperboard, corn starch paper;

[0059] 2. Paperboard Preparation

[0060] (1) Pulping process of plant fiber raw materials

[0061] Processing plant fiber raw materials into pulp that meets the requirements through mechanical pulping methods (such as stone grinding wood pulping method and disc grinding machine pulping method), plant fiber raw materials such as wheat straw, reed, rice straw, wood, etc.;

[0062] (2) Waste paper pulping process

[0063] The collected waste paper is crushed, cleaned, de-inked, screened, and impurities removed so that it can be re-formed into pulp suitable for making cartons;

[0064] (3) Slurry treatment

[0065] A servo motor 3 is installed at the left rear of the slurry filtration tank 1. The output end of the servo motor 3 is connected to a screw rod 4. When the servo motor 3 is powered on, the servo motor 3 is controlled to rotate forward, thereby driving the screw rod 4 to rotate. The outer side of the screw rod 4 is threadedly connected to a side plate 5. The screw rod 4 drives the side plate 5 to move downward. A filter screen plate 6 is installed at the lower end of the side plate 5. The ends of the side plates 5 away from the screw rod 4 are penetrated by support rods 11. The side plates 5 drive the filter screen plate 6 to move downward. At the same time, the other ends of the side plates 5 slide on the support rods 11, so that the filter screen plate 6 stably moves down to the bottom of the slurry filtration tank 1, and the slurry is put into the slurry filtration tank 1. After the slurry is put, it can be controlled The servo motor 3 is controlled to reverse, thereby controlling the screw rod 4 to reverse, and the screw rod 4 drives the side plate 5 to move upward, thereby controlling the filter screen plate 6 to move upward, and the filter screen plate 6 separates impurities contained in the slurry, such as wood chips, bark and other impurities that exceed the standard. The impurities stay on the filter screen plate 6 and follow the filter screen plate 6 to move upward, and when the filter screen plate 6 gradually moves to be flush with the upper end of the slurry filter tank 1, the impurities slide along the inclined surface of the filter screen plate 6 and the slurry filter tank 1 to the left and right ends. Waste boxes 2 are installed at both ends of the slurry filter tank 1, and the impurities are collected in the waste box 2. Later, the sealed door on the side of the waste box 2 only needs to be opened to clean the impurities;

[0066] A through slot 7 is provided on the side of the side plate 5, and a connecting plate 10 and a mounting plate 12 are installed below the filter screen plate 6. A knocking rod 9 is connected to the mounting plate 12 through a spring 8. A protrusion 13 is installed on the inner wall of the slurry filter tank 1. When the filter screen plate 6 moves up, the knocking rod 9 moves up synchronously. When the knocking rod 9 contacts the protrusion 13, the protrusion 13 can push the knocking rod 9 to move, and the knocking rod 9 squeezes and stores force on the spring 8, so that the knocking rod 9 knocks on the connecting plate 10, thereby realizing the vibration of the filter screen plate 6. When the position of the knocking rod 9 is staggered with the position of the protrusion 13, the spring 8 can control the knocking rod 9 to reset and move, thereby realizing the reciprocating knocking of the knocking rod 9, and the vibration force makes the impurities on the filter screen plate 6 quickly concentrate on the left and right ends of the slurry filter tank 1, so as to facilitate its concentration in the waste box 2, and can avoid the clogging of the filter screen plate 6, thereby realizing the rapid filtration of the slurry;

[0067] (4) Cardboard forming

[0068] The paper machine evenly distributes the pulp on a moving screen, the water is slowly filtered out, the fibers are interwoven together, and after being pressed and dried, paperboard is formed;

[0069] 3. Die cutting and creasing

[0070] (1) Die-cutting process

[0071] Through the die-cutting machine, using specially made molds, the cardboard is cut into the required shape and size. The flat die-cutting machine is used to cut the carton parts with regular shapes and smaller sizes, and the arc die-cutting machine is used to cut the carton parts with special shape requirements;

[0072] (2) Indentation operation

[0073] Use an automatic creasing machine to crease the cardboard at the part that needs to be folded;

[0074] 4. Folding and bonding

[0075] Fold the creased cardboard accurately and glue the edges of the folded cardboard together;

[0076] 5. Flatten

[0077] Use special flattening equipment to apply appropriate pressure to make the various surfaces of the carton fit more closely, reduce the warping and deformation of the carton, and achieve a good appearance effect;

[0078] 6. Finished product testing

[0079] (1) Surface defect screening

[0080] Check the surface for oil, stains, and scratches, and examine the edges and corners of the cartons for burrs and debris, by visual inspection under bright light or by random inspection using electronic testing equipment;

[0081] (2) Dimension measurement

[0082] Regularly check the size of cartons on the production line. Once a deviation is found, adjust the parameters of the production equipment in a timely manner to ensure that it is consistent with the design specifications. If the inner box size does not meet the requirements, it may cause the product to shake or collide during transportation, affecting product safety;

[0083] (3) Load-bearing capacity test

[0084] The packing compression test is used to simulate the pressure that cartons are subjected to during stacking or transportation, and to observe whether the cartons will deform or break.

[0085] The corn starch paper is made of a mixture of corn starch and cellulose, is relatively light, has good toughness, strong pressure resistance, and can be naturally degraded in a short time.

[0086] The waste paper can be burned to determine the impurity content in the waste paper. A certain amount of waste paper sample is burned under specified conditions, and the proportion of the remaining residue is calculated to obtain the purity of the waste paper. Waste paper with high purity can provide a more uniform fiber source, which is helpful to produce cartons with stable quality.

[0087] The left and right end surfaces of the slurry filter pool 1 are inclined, and the end of the slurry filter pool 1 is inclined toward the waste box 2. When the impurities in the slurry move to the upper end of the slurry filter pool 1, they can be smoothly concentrated into the waste box 2 along the slurry filter pool 1.

[0088] The upper end surface of the side plate 5 is an inclined structure, and the position of the through groove 7 opened on the side of the side plate 5 corresponds to the position of the protrusion 13, so that impurities can be concentrated to the position of the filter plate 6 along the inclined surface of the side plate 5, avoiding them from falling from the front and rear ends of the filter plate 6.

[0089] The filter screen plate 6 and the slurry filter tank 1 form an up and down sliding structure. The upper end surface of the filter screen plate 6 is distributed in an inclined shape, and the filter screen plate 6 can be flexibly driven to move, so that impurities are concentrated along the filter screen plate 6 to the left and right ends of the slurry filter tank 1 and collected in the waste box 2.

[0090] The ends of the knocking rod 9 are all smooth arc-shaped. The knocking rod 9 and the protrusion 13 are located in the same vertical plane. The protrusion 13 is an arc-shaped structure. The protrusion 13 can be used to drive the knocking rod 9 to knock on the filter screen plate 6, causing the filter screen plate 6 to vibrate, thereby facilitating the guided transportation of waste impurities.

[0091] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0092] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An environmentally friendly carton forming and processing technology, characterized by: The following steps are involved:

1. Material selection (1) Waste paper recycling Such as old newspapers, old cartons, old books, etc. (2) Environmentally friendly base paper Such as wood pulp paperboard, corn starch paper; 2. Paperboard Preparation (1) Pulping process of plant fiber raw materials Processing plant fiber raw materials into pulp that meets the requirements through mechanical pulping methods (such as stone grinding wood pulping method and disc grinding machine pulping method), plant fiber raw materials such as wheat straw, reed, rice straw, wood, etc.; (2) Waste paper pulping process The collected waste paper is crushed, cleaned, de-inked, screened, and impurities removed so that it can be re-formed into pulp suitable for making cartons; (3) Slurry treatment A servo motor (3) is installed at the left rear of the slurry filter pool (1). The output end of the servo motor (3) is connected to a screw rod (4). When the servo motor (3) is powered on, the servo motor (3) is controlled to rotate forward, thereby driving the screw rod (4) to rotate. The outer side of the screw rod (4) is threadedly connected to a side plate (5). The screw rod (4) drives the side plate (5) to move downward. A filter screen plate (6) is installed at the lower end of the side plate (5). The end of the side plate (5) away from the screw rod (4) is penetrated by a support rod (11). The side plate (5) drives the filter screen plate (6) to move downward. At the same time, the other end of the side plate (5) slides on the support rod (11), so that the filter screen plate (6) stably moves down to the bottom of the slurry filter pool (1). The slurry is put into the slurry filter pool (1). After the feeding is completed, the servo motor (3) can be controlled to reverse, thereby controlling the screw rod (4) to reverse, and the screw rod (4) drives the side plate (5) to move upward, thereby controlling the filter screen plate (6) to move upward, and the filter screen plate (6) separates impurities contained in the slurry, such as wood chips, bark and other impurities exceeding the standard. The impurities stay on the filter screen plate (6) and move upward with the filter screen plate (6), and when the filter screen plate (6) gradually moves to be flush with the upper end of the slurry filter tank (1), the impurities slide along the inclined surface of the filter screen plate (6) and the slurry filter tank (1) to the left and right ends. The left and right ends of the slurry filter tank (1) are both equipped with waste boxes (2), and the impurities are collected in the waste box (2). Later, the impurities can be cleaned by opening the sealed door on the side of the waste box (2); A through groove (7) is provided on the side of the side plate (5); a connecting plate (10) and a mounting plate (12) are installed below the filter screen plate (6); a knocking rod (9) is connected to the mounting plate (12) via a spring (8); a protrusion (13) is installed on the inner wall of the slurry filter tank (1); when the filter screen plate (6) moves upward, the knocking rod (9) moves upward synchronously; when the knocking rod (9) contacts the protrusion (13), the protrusion (13) can push the knocking rod (9) to move, and the knocking rod (9) exerts pressure on the spring (8) to thereby release the pressure. The squeezed force is accumulated, so that the knocking rod (9) knocks the connecting plate (10), thereby realizing the vibration of the filter screen plate (6). When the position of the knocking rod (9) is offset from the position of the protrusion (13), the spring (8) can control the knocking rod (9) to reset and move, thereby realizing the reciprocating knocking of the knocking rod (9). The vibration force causes the impurities on the filter screen plate (6) to quickly concentrate on the left and right ends of the slurry filter pool (1), so that they are conveniently concentrated in the waste box (2), and the filter screen plate (6) can be prevented from being blocked, thereby realizing the rapid filtering of the slurry; (4) Cardboard forming The paper machine evenly distributes the pulp on a moving screen, the water is slowly filtered out, the fibers are interwoven together, and after being pressed and dried, paperboard is formed; 3. Die cutting and creasing (1) Die-cutting process Through the die-cutting machine, using specially made molds, the cardboard is cut into the required shape and size. The flat die-cutting machine is used to cut the carton parts with regular shapes and smaller sizes, and the arc die-cutting machine is used to cut the carton parts with special shape requirements; (2) Indentation operation Use an automatic creasing machine to crease the cardboard at the part that needs to be folded; 4. Folding and bonding Fold the creased cardboard accurately and glue the edges of the folded cardboard together; 5. Flatten Use special flattening equipment to apply appropriate pressure to make the various surfaces of the carton fit more closely, reduce the warping and deformation of the carton, and achieve a good appearance effect; 6. Finished product testing (1) Surface defect screening Check the surface for oil, stains, and scratches, and examine the edges and corners of the cartons for burrs and debris, by visual inspection under bright light or by random inspection using electronic testing equipment; (2) Dimension measurement Regularly check the size of cartons on the production line. Once a deviation is found, adjust the parameters of the production equipment in a timely manner to ensure that it is consistent with the design specifications. If the inner box size does not meet the requirements, it may cause the product to shake or collide during transportation, affecting product safety; (3) Load-bearing capacity test The packing compression test is used to simulate the pressure that cartons are subjected to during stacking or transportation, and to observe whether the cartons will deform or break.

2. The environmentally friendly carton forming and processing technology according to claim 1 is characterized by: The corn starch paper is made of a mixture of corn starch and cellulose, is relatively light, has good toughness, strong pressure resistance, and can be naturally degraded in a short time.

3. The environmentally friendly carton forming and processing technology according to claim 1 is characterized by: The waste paper can be burned to determine the impurity content in the waste paper. A certain amount of waste paper sample is burned under specified conditions, and the proportion of the remaining residue is calculated to obtain the purity of the waste paper. Waste paper with high purity can provide a more uniform fiber source, which is helpful to produce cartons with stable quality.

4. The environmentally friendly carton forming and processing technology according to claim 1 is characterized by: The left and right end surfaces of the slurry filter pool (1) are distributed in an inclined shape, and the end of the slurry filter pool (1) is inclined toward the waste box (2).

5. The environmentally friendly carton forming and processing technology according to claim 1 is characterized by: The upper end surface of the side plate (5) is an inclined structure, and the position of the through slot (7) provided on the side surface of the side plate (5) and the position of the protrusion (13) are arranged to correspond to each other.

6. The environmentally friendly carton forming and processing technology according to claim 1 is characterized by: The filter screen plate (6) and the slurry filter tank (1) form an up-and-down sliding structure, and the upper end surface of the filter screen plate (6) is distributed in an inclined shape.

7. The environmentally friendly carton forming and processing technology according to claim 1 is characterized by: The ends of the knocking rod (9) are all in a smooth arc shape; the knocking rod (9) and the protrusion (13) are located in the same vertical plane; and the protrusion (13) is in an arc structure.

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