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CN-121989498-A - Book-shaped folding box inner bonding and production method based on cooperative warping prevention and glue control

CN121989498ACN 121989498 ACN121989498 ACN 121989498ACN-121989498-A

Abstract

The invention discloses a method for producing a book-shaped folding box based on cooperative warping prevention and glue control, and belongs to the technical field of packaging product production. The method comprises the steps of raw material pretreatment, large inner paste die cutting and forming, book type folding box assembly, large inner paste gluing treatment, large inner paste compounding, finished product inspection and the like, and a fillet transition structure, a grid gluing area and a white cow leather substrate collaborative warping prevention and glue control system is constructed. By precisely controlling the technological parameters of die cutting, gluing, compounding and the like, the traditional 18 processes are optimized into 10 processes, so that the lamination deviation is less than or equal to 0.2mm, the warping rate is less than or equal to 0.3%, the glue overflow rate is less than or equal to 0.5%, the qualification rate is more than or equal to 99.5%, and the single product cost is reduced by 0.136 yuan. The invention fundamentally solves the problems of low attaching precision, high warping rate and glue overflow rate, low production efficiency, high cost and the like in the traditional process, and has remarkable industrial application value.

Inventors

  • GUI YINTAI
  • WANG WENQIAO
  • WANG HENG
  • LI YONGYUE

Assignees

  • 厦门创业人环保科技股份有限公司

Dates

Publication Date
20260508
Application Date
20260128

Claims (10)

  1. 1. A production method for bonding and combining book-shaped folding boxes based on cooperative warping prevention and glue control is characterized by comprising the following steps: S1, raw material pretreatment, namely selecting a white cowhide substrate, preheating and dehumidifying, and respectively finishing gluing and mounting operations of a box main body, a left cover plate, a right cover plate, a front baffle plate and a rear baffle plate of the book-shaped folding box by adopting a gluing machine; S2, die cutting and forming the large inner paste, namely obtaining a straight-line-shaped large inner paste through a die cutting machine, wherein the large inner paste is formed by connecting inner pastes positioned in the center and side inner pastes positioned at two sides, and a folding part on the long side of the rectangle is provided with a round corner transition structure, S3, assembling the book-type folding box, namely sequentially finishing the silk ribbon pasting of the front baffle and the rear baffle, the assembling of the front baffle and the rear baffle with the box main body and the assembling of the left cover plate and the right cover plate with the box main body; S4, gluing the large inner paste, namely gluing a latticed gluing area on the surface of one side of the large inner paste obtained in the S2 to be used as a joint surface of the straight-line-shaped large inner paste; s5, compounding large inner stickers, namely precisely laminating the glued linear large inner stickers on the inner surface of the assembled book-type folding box at one time, manually lightly pressing to eliminate surface wrinkles, and then sending the book-type folding box into a roller flattening machine for rolling and curing; S6, checking the quality of the finished product, and selecting a qualified finished product for folding to obtain the book-shaped folding box.
  2. 2. The method for producing the book-shaped folding box based on collaborative warping prevention and glue control is characterized in that in the step S1, the Bai Niupi base material is a white cow leather base material with bending strength not less than 2N and 180-degree folding crack-free, the gram weight is 130-160 g, the preheating temperature is 70 ℃ plus or minus 5 ℃ and is preheated for 10-15 min, and the water content of the base material is controlled to be 8% plusor minus 1%.
  3. 3. The method for producing the book-shaped folding box in the bonding manner based on the cooperative warping prevention and glue control of claim 2, wherein in the step S2, the radius of the fillet transition structure is 0.5mm plus or minus 0.05mm, and the fillet structure can disperse the edge stress of the inner bonding so that the warping rate of the inner bonding is less than or equal to 0.3%.
  4. 4. The method for producing the book-shaped folding box in-bonding based on cooperative warping prevention and glue control according to claim 3, wherein in the step S4, an anilox roller with an anilox depth of 0.03mm is adopted for gluing, the grid of the grid-shaped gluing area is 1mm multiplied by 1mm, the line width is 0.2mm, the thickness of wet glue is controlled to be 0.03mm plus or minus 0.005mm, and the gluing coverage rate is 80% plusor minus 5%.
  5. 5. The method for producing the book-shaped folding box internal adhesion based on the synergistic warp prevention and glue control according to claim 4 is characterized in that in the step S4, water-based acrylic glue is adopted for glue coating, the solid content is 45% +/-3%, the dry glue thickness is 0.01mm-0.02mm, the glue is matched with a grid glue coating mode, the adhesion firmness is improved, the peeling strength is more than or equal to 5.5N/25mm, the influence of glue shrinkage on the structure is reduced, and the glue overflow rate is less than or equal to 0.5%.
  6. 6. The method for producing the book-type folding box internal bonding based on the cooperative warping prevention and glue control according to any one of claims 1 to 5 is characterized in that in the step S2, a die cutting machine adopts a die with a cutting edge angle of 45 degrees+/-5 degrees, and the cutting is carried out under the pressure of 10 MPa+/-2 MPa, and the multiplexing rate of the main body of the special die is more than or equal to 80 percent, so that the utilization rate of the die is improved, the die changing cost is reduced, and the production period is shortened.
  7. 7. The method for producing the book-type folding box internal adhesion based on the cooperative warping prevention and glue control according to any one of claims 1 to 5, wherein the step S3 comprises the following steps: The front baffle plate and the rear baffle plate are stuck, namely hot melt adhesive is coated in the middle area of the upper edges of the front baffle plate and the rear baffle plate, the front baffle plate and the rear baffle plate are accurately stuck in place, and the front baffle plate and the rear baffle plate are pressed and fixed, so that the silk ribbon is ensured to have no offset and no warping; The front baffle plate and the rear baffle plate are assembled with the box main body, hot melt adhesive is uniformly coated at a designated position aiming at the structure of the book-type folding box main body, the front baffle plate and the rear baffle plate which are adhered with silk ribbons are aligned with the glue coating position of the box main body along one side of a line pressing, and the glue coating position is pressed and positioned, so that a splicing gap is less than or equal to 0.1mm; The left cover plate and the right cover plate are assembled with the box main body, namely, hot melt adhesive is coated at the appointed positions of the left side and the right side of the bottom of the book-shaped folding box main body, the left cover plate and the right cover plate are respectively aligned with the glue coating position of the box main body along one side of a pressing line, and the left cover plate and the right cover plate are pressed and fixed, so that the verticality deviation of the cover plate and the main body is ensured to be less than or equal to 0.2 degrees.
  8. 8. The method for producing the book-type folding box internal bonding based on the cooperative warping prevention and glue control according to any one of claims 1 to 5 is characterized in that in the step S5, the running speed of a roller flattening machine is 8-15m/min, the large internal bonding is ensured to be free of warping edges and bubbles after lamination, the bonding flatness is less than or equal to 0.1mm, and the rolling curing is carried out under the conditions of the pressure of 0.3-0.6 MPa and the temperature of 50-60 ℃, so that the appearance quality and the structural stability of the product are improved.
  9. 9. The method for producing the book-type folding box based on cooperative warping prevention and glue control according to any one of claims 1 to 5 is characterized in that in the step S4, the glue coating amount of the glue coating is 0.03 g/piece to 0.05 g/piece, and the glue coating method is suitable for production requirements of book-type folding boxes with different sizes, and ensures that products with different specifications can achieve the effect that the glue overflow rate is less than or equal to 0.5 percent.
  10. 10. The method for producing the book-shaped folding box internal adhesion based on the cooperative anti-warping and glue control according to any one of claims 1 to 5, wherein in the step S6, the adhesion deviation of a finished product is less than or equal to 0.2mm, the glue overflow rate is less than or equal to 0.5%, the warping rate is less than or equal to 0.3%, the peeling strength is more than or equal to 5.5N/25mm, and the qualification rate is more than or equal to 99.5%.

Description

Book-shaped folding box inner bonding and production method based on cooperative warping prevention and glue control Technical Field The invention relates to the technical field of packaging product production, in particular to a method for realizing large-scale production of various book-shaped folding boxes through cooperative design of a structure and a process. Background In the packaging product industry, book-shaped folding boxes are widely applied to the packaging field of products such as luxury goods, clothes, gifts and the like because of the advantages of attractive structure, convenience in storage and the like. The book-type folding box comprises an inner box and a shell, the existing book-type folding box inner paste commonly adopts a step-by-step attaching process (as shown in figure 1) of folding box inner paste, baffle inner paste 1 and baffle inner paste 2, the process is a core scheme in the prior art, wherein the folding box inner paste is used as a bottom surface support, the baffle inner paste 1 and the baffle inner paste 2 are sequentially attached and assembled with side edge parts of the folding box and respectively used as supports on two sides of the folding box, and the basic packaging function requirement of the book-type folding box is met to a certain extent. However, the traditional process has a plurality of operation steps, and seriously restricts the balance of product quality, production efficiency and cost control. In the aspect of attaching precision and appearance quality, in the step-by-step attaching process, the positioning deviation of each inner attaching part can be accumulated continuously, and finally the integral accumulated positioning deviation is large, so that obvious step difference appears at the spliced part, the flatness of the appearance of a product is affected, meanwhile, the inner attaching adopts a right-angle structural design, the edge is easy to generate stress concentration, the warping rate is high under the influence of factors such as environmental temperature change, glue shrinkage and the like, and the structural stability and the aesthetic degree of the product are greatly reduced. In terms of production efficiency and cost control, the whole process is required to be subjected to 18 complicated procedures, the single-batch production period is as long as 48 hours, the labor input amount is large, the labor cost is high, the glue loss is high due to multiple glue coating operations, and the production cost is further increased. Finally, in the aspects of quality stability and large-scale production, glue coating is easy to be uneven due to repeated glue coating, the glue overflow rate is high, the workload is increased in the subsequent repair process, the internal adhesion is easy to damage, the product qualification rate is difficult to improve, and the requirement of large-scale production on the product quality consistency is difficult to meet. Disclosure of Invention Aiming at the problems of low attaching precision, high rising rate, high glue overflow rate, complex production procedures, high cost, poor quality stability and the like of the existing book-shaped folding box inner attaching step-by-step attaching process, the invention provides a book-shaped folding box inner attaching and producing method based on cooperative rising prevention and glue control. The invention adopts the three-in-one big inner paste, and only needs to carry out one inner paste operation after the inner paste for supporting the side face and the inner paste for supporting the bottom face are compounded. While simplifying the operation, it follows that the large inner patch is easier to warp than the conventional 3 times inner patch. Aiming at the problem, the invention adopts a fillet transition structure to disperse stress generated by folding the large inner paste, simultaneously carries out glue control by gluing the grids on the large inner paste to avoid glue overflow, finally adopts a specific white cowhide substrate, and the mechanical property and the improvement jointly form a 'collaborative warping prevention and glue control system', and specifically comprises the following steps: S1, raw material pretreatment, namely selecting a white cowhide substrate, preheating and dehumidifying, and respectively finishing gluing and mounting operations of a box main body, a left cover plate, a right cover plate, a front baffle plate and a rear baffle plate of the book-shaped folding box by adopting a gluing machine; S2, die cutting and forming the large inner paste, namely obtaining a straight-line-shaped large inner paste through a die cutting machine, wherein the large inner paste is formed by connecting inner pastes positioned in the center and side inner pastes positioned at two sides, and a folding part on the long side of the rectangle is provided with a round corner transition structure, S3, assembling the book-type folding box, namely sequentia