CN111452432B

CN111452432B - Method for manufacturing paper disc

Info

Publication number: CN111452432B
Application number: CN202010217614.0A
Authority: CN
Inventors: 马诗强
Original assignee: Hezhong Chuangya Chengdu Package Co ltd
Current assignee: Hezhong Chuangya Chengdu Package Co ltd
Priority date: 2020-03-25
Filing date: 2020-03-25
Publication date: 2022-03-08
Anticipated expiration: 2040-03-25
Also published as: CN111452432A

Abstract

The invention discloses a method for manufacturing a paper tray, which comprises the following steps: (1) sequentially placing the paper roll and the paper board on a positioning tool die and positioning; (2) nailing the corrugated board and the paper roll together, and then taking down the corrugated board and the paper roll integrally from the positioning jig; (3) turning over the corrugated board, continuously placing the corrugated board on a positioning tool die and positioning, and then placing and positioning another corrugated board on the positioning tool die; (4) nailing the second corrugated board together with the paper roll, and then integrally taking down the second corrugated board from the positioning tool die to obtain a paper disc; (5) and (3) clamping a support in a gap between the two corrugated boards, pressing the paper discs, naturally placing, taking out the support, and screening qualified products. The paper disc manufacturing method has the remarkable characteristics of low rejection rate, low cost, low energy consumption, no occupation of field and the like, namely three-low-one-occupation-free, not only solves the problems of high rejection rate of manually manufactured paper discs, high cost and large occupation space of machine-produced paper discs, but also better accords with the concept of energy conservation and environmental protection.

Description

Method for manufacturing paper disc

Technical Field

The invention relates to the field of paper disc processing, in particular to a method for manufacturing a paper disc.

Background

For environmental and other reasons, the taking up of wire-like objects by means of paper discs has become increasingly the mainstream. At present, the paper disc is mainly manufactured by manual bonding, namely, foam is used in the middle, foam blocks are placed on four sides of the paper disc to support the paper disc to be smooth, and then glue is applied to two sides of the paper disc to bond the paper disc. The manual bonding mode has the condition of different quality, the size of the gap between two plate surfaces of the paper plate is not easy to control, and the rejection rate of the paper plate is high (possibly reaching more than 20%). At present, paper trays are also produced in an automatic bonding mode through a machine, the control of the size of the gap is ensured, but the machine equipment generally has the defects of high cost and large occupied space for small and medium-sized enterprises, and is not suitable for popularization and application.

Disclosure of Invention

The invention aims to provide a method for manufacturing paper trays, which mainly solves the problems of high rejection rate of manually manufactured paper trays, high cost and large occupied space of machine-produced paper trays.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

a method of making a paper tray comprising the steps of:

(1) sequentially placing a paper roll and a corrugated board on a positioning tool die and positioning, wherein the positioned corrugated board covers one side of the paper roll; the positioning tool die comprises a base plate, a plurality of corrugated board clamping supports and a plurality of paper roll clamping supports, wherein the corrugated board clamping supports and the paper roll clamping supports are distributed on the base plate; the corrugated board is provided with a first through hole matched with the corrugated board clamping strut, and the corrugated board clamping strut penetrates through the first through hole to position the corrugated board; all the paper roll clamping supports form a clamping point matched with the inner diameter ring of the paper roll, and the paper roll is positioned by clamping the inner diameter ring of the paper roll by the clamping point;

(2) nailing the corrugated board and the paper roll together, and then taking down the corrugated board and the paper roll integrally from the positioning jig;

(3) turning over the corrugated board, continuously placing the corrugated board on a positioning tool die and positioning, then placing another corrugated board on the positioning tool die and positioning, and covering the other side of the paper roll with a second corrugated board after positioning;

(4) nailing the second corrugated board together with the paper roll, and then integrally taking down the second corrugated board from the positioning tool die to obtain a paper plate consisting of two corrugated boards and the paper roll fixed between the two corrugated boards;

(5) clamping a support in a gap between the two corrugated boards, and then pressing the paper tray with a heavy object for over 12 hours;

(6) and after pressing, naturally placing for more than 12h, then taking out the supports clamped previously, and screening qualified products.

Furthermore, a second through hole matched with the clamping point is further formed in the corrugated paper board, and the second through hole is penetrated through when the paper roll is clamped by the clamping point.

Still further, the corrugated board die is cut into the actual desired shape before the corrugated board is placed on the positioning jig.

Furthermore, the corrugated board is pretreated before die cutting, and the process is as follows:

(1) sequentially stacking a plurality of corrugated boards with the same size and specification according to the sequence of alternating front and back surfaces, wherein the stacking height is not more than 1 m;

(2) pressing the stacked corrugated boards, wherein the pressure is more than 1 ton, and the pressing time is more than 7 days;

(3) naturally placing for more than 3 days after pressing, and then selecting qualified corrugated boards by taking the standard that the warping is not more than 5 mm;

(4) and printing the corrugated board within 12h after the qualified corrugated board is selected, and performing die cutting on the corrugated board within 12h after the printing.

Further, the cut corrugated board is subjected to secondary treatment, and the process is as follows:

(1) sequentially stacking a plurality of die-cut corrugated boards according to the sequence of alternating front and back surfaces, wherein the stacking height is not more than 1 m;

(3) naturally placing for more than 3 days after pressing, and then selecting qualified corrugated boards for making paper discs by taking the standard that the warping is not more than 3 mm.

Furthermore, the corrugated board with the required shape is die-cut, a plurality of nail holes are uniformly cut on the corrugated board, and then the corrugated board and the paper roll are nailed together in a nail hole nailing mode through a nailing machine after the corrugated board is positioned on the positioning working die.

Preferably, the support is a triangular cardboard.

Preferably, the material of the paper roll is F300 bobbin paper, and the paper roll has excellent pressure resistance.

Compared with the prior art, the invention has the following beneficial effects:

(1) the invention designs a special positioning working die, accurately positions the corrugated board and the paper roll by skillfully using the positioning working die, nails the corrugated board and the paper roll together, and then clamps the corrugated board and the paper roll into a support to perform heavy object pressing (for more than 12 hours) and natural placement (for more than 12 hours), thereby finally obtaining the qualified finished paper disc. Compared with the traditional mode of manually bonding and manufacturing the paper disc, the paper disc manufacturing method has higher manufacturing efficiency, more firm combination of all parts of the paper disc, and most importantly, the clearance between the disc surfaces of the paper disc is strictly controlled, and the integral smoothness of the paper disc is ensured, so that the rejection rate is greatly reduced (can be reduced to below 3 percent), and the actual use requirement is better met. Compared with a machine production mode, the invention greatly reduces the equipment purchase and use cost of enterprises and saves the occupied space, so the invention is very suitable for popularization and application (especially in small and medium-sized enterprises).

(2) The invention carries out pretreatment on the corrugated board before die cutting, thereby ensuring effective die cutting of the subsequent corrugated board, and in the pretreatment: a. because the moisture on the two sides of the paper board is inconsistent, the corrugated paper boards are sequentially stacked and pressed for more than 7 days according to the alternating sequence of the front side and the back side, and the stacking height is not more than 1m, so that the paper board is ensured not to deform and keep flat in the moisture releasing process; b. after pressing, the paperboard is naturally placed, so that the moisture is uniformly distributed, and the moisture is reasonably released; c. and (4) formulating a warping standard, selecting qualified products according to the warping standard, then printing within 12h, and performing die cutting within 12h after printing, thereby finally ensuring the die cutting quality of the paperboard.

(3) After printing-die cutting, the paper board absorbs moisture and may deform, so that after the corrugated board is die-cut, the corrugated board is subjected to secondary treatment, the moisture on two sides of the paper board is uniformly distributed again, and the moisture is reasonably released, so that the quality of subsequent paper disc manufacturing is ensured.

(4) The applicant researches and discovers that the overhigh and overlow water content and the uneven water distribution of the corrugated board can cause serious influence on the printing and die cutting of the corrugated board, so that the quality of the paper disc is reduced, therefore, the invention performs water uniform distribution and release treatment before and after the die cutting of the paper board and after the forming of the paper disc, strictly controls the water content of two sides of the paper board, ensures the water to be uniformly distributed on the paper board, fully ensures the normal operation of each process, and provides effective guarantee for finally obtaining the paper disc with reliable quality and good qualification. The paperboard processing mode designed by the invention has novel and unique technical means, and does not need to adopt dewatering means such as heating, drying and the like on the premise of effectively ensuring that the paperboard moisture is effectively processed, thereby omitting the purchase of related equipment, saving the cost and avoiding the loss of electric energy of the equipment.

(5) The invention cuts the nail holes at the same time of die cutting the corrugated board, thus, the nail holes do not need to be punched on the corrugated board independently, the operation is simple, the uniformity of punching the nail holes and the accuracy of the punching positions are convenient to be ensured, the connection between the punched paper board and the paper roll is stable and reliable, and the integral smoothness of the paper disc and the further accurate control of the gap size of the paper disc surface are favorably ensured.

(6) The paper disc processing device is reasonable in design and convenient and fast to operate, and has high practical value and popularization value in the technical field of paper disc processing.

Drawings

FIG. 1 is a schematic flow chart of the present invention for making paper trays.

Fig. 2 is a schematic view of a die-cut corrugated board in accordance with an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a positioning tool according to an embodiment of the present invention.

Fig. 4 is a schematic diagram of the cooperation of the paper roll and the positioning tool in the embodiment of the invention.

Fig. 5 is a schematic structural view of a paper tray prepared by an embodiment of the present invention.

Wherein, the names corresponding to the reference numbers are:

1-a first corrugated board, 2-a paper roll, 3-a second corrugated board, 3-a backing plate, 4-a corrugated board clamping support, 5-a paper roll clamping support, 6-a first through hole and 7-a second through hole.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include but are not limited to the following examples.

Examples

The invention provides a method for manufacturing paper trays, and aims to solve the problems of high rejection rate of manually manufactured paper trays, high cost and large occupied space of machine-produced paper trays. The process mainly comprises the steps of corrugated board treatment, paper disc making and packaging, and the steps are as follows:

firstly, processing corrugated paper board

Firstly, selecting a corrugated board with 3 layers and a C-shaped corrugated board as a paper disc surface.

Then, a plurality of corrugated boards with the same size and specification are stacked in sequence according to the alternating sequence of the front side and the back side, and the stacking height does not exceed 1m (generally 5-10 corrugated boards are stacked). And then pressing the stacked corrugated boards, wherein the pressure is more than 1 ton, and the pressing time is more than 7 days. Naturally placing for more than 3 days after pressing, and then selecting qualified corrugated boards by taking the standard that the bending deflection does not exceed 5 mm.

After the qualified corrugated cardboard is selected, the corrugated cardboard is printed within 12h, and after the printing, the corrugated cardboard is subjected to die cutting within 12h, so that the corrugated cardboard with the actually required shape (such as a circular cardboard shown in fig. 2) is obtained. And cutting the corrugated board by die cutting, and simultaneously cutting out nail holes which need to be nailed subsequently.

After die cutting, the corrugated board is subjected to a secondary treatment, substantially as described above, as follows:

Second, paper disc making

Firstly, selecting F300 bobbin paper as a paper roll (playing a role of a connecting shaft), and selecting a shooting nail with the nailing force larger than 8 kg.

Then, as shown in fig. 1, a paper roll and a corrugated cardboard are sequentially placed on a positioning jig and positioned, and the corrugated cardboard is covered on one side of the paper roll after positioning. The positioning tool has a structure shown in fig. 3, and comprises a backing plate 4, and a plurality of corrugated cardboard clamping supports 5 and a plurality of paper roll clamping supports 6 distributed on the backing plate. The corrugated board is provided with a first through hole 6 (die-cut, as shown in fig. 2) matched with the corrugated board clamping support column, and the corrugated board is positioned by penetrating the first through hole through the corrugated board clamping support column. All the paper roll clamping supports form a clamping point matched with the inner diameter ring of the paper roll, the paper roll is positioned by clamping the inner diameter ring of the paper roll by the clamping point, and the matching of the paper roll 2 and the positioning tool is shown in figure 4. And, still be equipped with the second through-hole 7 (the same is die cutting and cuts out, as shown in fig. 2) that matches with the stuck point on the corrugated container board, the stuck point will block the scroll simultaneously, will run through the second through-hole to further ensure the accurate positioning to corrugated container board.

After the corrugated board and the paper roll are respectively positioned, a nail shooter is used for punching holes in nail holes, the corrugated board and the paper roll are nailed together, and then the corrugated board and the paper roll are integrally taken down from a positioning tool die.

And then, turning the corrugated board, continuously placing the corrugated board on a positioning tool die and positioning, then placing another corrugated board on the positioning tool die and positioning, and covering the other side of the paper roll with a second corrugated board after positioning.

Next, the second corrugated cardboard is stapled with the paper roll, and then is removed from the positioning jig as a whole, to obtain a paper tray composed of two corrugated cardboards and the paper roll fixed therebetween, as shown in fig. 5, in which reference numerals 1 and 3 denote a first corrugated cardboard and a second corrugated cardboard, respectively.

Treatment after paper tray formation: and (3) clamping a support in a gap between the two corrugated boards, and then pressing the paper tray for over 12 hours. In the embodiment, the triangular paperboard is used as a support, and each paper tray is evenly clamped into six paperboards, so that the pressing uniformity and reliability are ensured.

And after pressing, naturally placing for more than 12h, then taking out the supports clamped previously, and screening qualified products. In this embodiment, the qualified product is determined according to whether the size of the tray surface gaps at the four positions of the upper, lower, left and right positions of the tray meets the error requirement of the customer.

III, packaging

And finally, selecting qualified paper discs, clamping the triangular paperboard in the gaps between the disc surfaces, and packaging 5 paper discs by using a winding film. The purpose of the card-in triangle card paper is to ensure that the paper disc is not deformed by external force during transportation, storage and turnover.

The invention reasonably improves the existing paper disc manufacturing process, has the remarkable characteristics of low rejection rate, low cost, low energy consumption and no occupied area (namely three-low-one-no-occupied), not only well solves the defects existing in the prior art, but also better conforms to the concept of energy conservation and environmental protection. Therefore, compared with the prior art, the invention has obvious technical progress, and has outstanding substantive characteristics and remarkable progress.

The above-mentioned embodiment is only one of the preferred embodiments of the present invention, and should not be used to limit the scope of the present invention, and all the technical problems solved by the present invention should be included in the scope of the present invention, as no substantial changes or modifications are made within the spirit and scope of the main design of the present invention.

Claims

1. A method of making a paper tray comprising the steps of:

(1) pretreatment of corrugated boards:

1) sequentially stacking a plurality of corrugated boards with the same size and specification according to the sequence of alternating front and back surfaces, wherein the stacking height is not more than 1 m;

2) pressing the stacked corrugated boards, wherein the pressure is more than 1 ton, and the pressing time is more than 7 days;

3) naturally placing for more than 3 days after pressing, and then selecting qualified corrugated boards by taking the standard that the warping is not more than 5 mm;

4) printing the corrugated board within 12h after the qualified corrugated board is selected, and performing die cutting on the corrugated board within 12h after the printing;

(2) secondary treatment of the corrugated board after die cutting:

1) sequentially stacking a plurality of die-cut corrugated boards according to the sequence of alternating front and back surfaces, wherein the stacking height is not more than 1 m;

3) naturally placing for more than 3 days after pressing, and then selecting qualified corrugated boards to be used for manufacturing paper discs by taking the standard that the warping is not more than 3 mm;

(3) sequentially placing a paper roll and a corrugated board subjected to secondary treatment on a positioning tool die and positioning, wherein the corrugated board covers one surface of the paper roll after positioning; the positioning tool comprises a base plate (4), a plurality of corrugated board clamping supports (5) and a plurality of paper roll clamping supports (6), wherein the corrugated board clamping supports and the paper roll clamping supports are distributed on the base plate; the corrugated board is provided with a first through hole matched with the corrugated board clamping strut (5), and the corrugated board is positioned by penetrating the first through hole through the corrugated board clamping strut; all the paper roll clamping supports (6) form a clamping point matched with the inner diameter ring of the paper roll, and the paper roll is positioned by clamping the inner diameter ring of the paper roll by the clamping point;

(4) nailing the corrugated board and the paper roll together, and then taking down the corrugated board and the paper roll integrally from the positioning jig;

(5) turning over the corrugated board, continuously placing the corrugated board on a positioning tool die and positioning, then placing another corrugated board on the positioning tool die and positioning, and covering the other side of the paper roll with a second corrugated board after positioning;

(6) nailing the second corrugated board together with the paper roll, and then integrally taking down the second corrugated board from the positioning tool die to obtain a paper plate consisting of two corrugated boards and the paper roll fixed between the two corrugated boards;

(7) clamping a support in a gap between the two corrugated boards, and then pressing the paper tray with a heavy object for over 12 hours;

(8) and after pressing, naturally placing for more than 12h, then taking out the supports clamped previously, and screening qualified products.

2. The method of claim 1, wherein the corrugated cardboard further comprises a second through hole matching with the clamping point, and the clamping point penetrates through the second through hole while clamping the paper roll.

3. A method of making a paper tray as claimed in claim 1 or claim 2, wherein the corrugated board die is cut to the actual required shape before the corrugated board is placed on the location jig.

4. A method of making a paper tray as claimed in claim 3, wherein the corrugated cardboard of a desired shape is die-cut while uniformly cutting a plurality of nail holes in the corrugated cardboard, and then the corrugated cardboard is nailed to the paper roll by nailing the nails in the nail holes by means of a nailing machine after the corrugated cardboard is positioned on the positioning jig.

5. The method of making a paper tray of claim 4, wherein the support is a triangular shaped cardboard.

6. The method of claim 5, wherein the material of the paper roll is F300 bobbin paper.