Production equipment for producing single-part carbon-free duplicating printing paper by adopting roll material

Abstract

The utility model relates to production equipment for producing single-part carbon-free copying printing paper by adopting roll materials, which is characterized in that an uncoiling seat, a deviation rectifying device, a paper pulling device, a longitudinal cutting device, a rotary cutting device, a conveying device, a base plate conveying device, a conveying belt, a vibration paper collecting table, a power system and an electrical control system are adopted, the continuous production of the roll type carbonless copy paper as a raw material is realized, the turnover of intermediate semi-finished products is reduced, and the production efficiency is improved; by means of roll material cutting and accurate length setting, the machining allowance can be reduced to the maximum extent, the machining loss is reduced, and the technical scheme solves the technical problems of high efficiency and low loss of a single piece of carbon-free copying printing paper.

Description

Technical Field

[0001] The utility model relates to a processing device for office paper products, in particular to a production device for producing single-copy carbonless copy printing paper by adopting a roll material. Background Art

[0002] Carbonless copy paper is widely used in commercial documents such as invoices and forms for banking, tax, telecommunications, postal services, insurance, and catering services due to its advantages such as ease of use, cleanliness, high copy volume, clear handwriting, easy processing, and neat overprinting, making it particularly suitable for computer printing. It is often made up of two or three copies of carbonless copy paper. Carbonless copy paper, also known as pressure-sensitive printing paper, consists of an upper, middle, and lower paper. The backs of the upper and middle papers are coated with a colorant (CB coating), while the fronts of the middle and lower papers are coated with a colorant (CF coating). The front and back of the upper and lower papers remain uncoated. Color development occurs through a chemical reaction between the colorant layer of microcapsules and the acidic clay in the developer layer. During printing, the printing needle applies pressure to the paper surface, crushing the microcapsules and causing the colorant and developer to react. The common number of color developing layers is 2 to 6 layers (each layer is usually called a copy, the first copy can also be called the upper copy, the second layer is the second copy, and so on). It is mainly used for continuous printing with a dot matrix printer, and can also be handwritten to achieve the effect of copying multiple copies at the same time.

[0003] Carbonless copy paper release glue (referred to as "release glue" in this patent document) is a water-soluble adhesive specifically designed for carbonless copy paper processing. When printing carbonless copy paper, it is often necessary to produce sets of collated top, middle, and bottom sheets. By applying the release glue to the edges of pre-collated carbonless copy paper sheets and drying them, the separated sets of carbonless copy paper are obtained. The release glue works by spreading more easily on the base paper surface than on the CB and CF coatings. When applied to the edges of pre-collated carbonless copy paper sheets, the release glue readily penetrates the gap between the CB coating and the CF coating, but less readily penetrates the gap between the base paper surface and the base paper surface. Therefore, the gap between the CB coating and the CF coating absorbs more adhesive, resulting in a stronger bond between the CB and CF coatings. Conversely, the gap between the base paper surface and the base paper surface absorbs less adhesive, preventing effective adhesion. Therefore, stacks of carbonless copy paper treated with the release adhesive can be separated into sets with just a little tapping. Moreover, the adhesive does not cause interpenetrating adhesion between sheets, meaning that they can be easily separated without damaging the sheets when a tearing force is applied, and the sheets remain flat after being torn.

[0004] Based on these needs and principles, our company developed a single-copy carbonless copy paper and applied for a utility model patent, patent number 201220490464.1. This single-copy carbonless copy paper consists of a top layer, 0 to 5 middle layers, and a bottom layer. Its unique feature is that the paper is cut into individual copies, and the layers within each copy are glued together at one end with a release adhesive. This ensures that multiple layers print simultaneously during printing, and the layers are easily torn apart after printing, preventing paper deformation. The method for producing this single-copy carbonless copy printing paper generally adopts the production process of "cutting large flat sheets into smaller sizes - single sheets are collated - cutting to finished size - applying separation glue - sorting several pages into books - adding pads - packaging". This production process has three problems: first, large flat sheets are produced by paper mills according to standard A0 paper size, and the finished product sizes vary. After secondary slitting, a large amount of scrap will be wasted; second, sorting several pages into books is a large workload, especially for thinner carbonless copy paper. Even if machine counting is used, errors often occur, resulting in a high rework rate. After sorting, pads are manually added to products that require pads and covers; third, this production process produces each process separately, requires multiple turnovers, and has low production efficiency. Utility Model Content

[0005] The utility model aims to provide a production device for producing single-copy carbonless copy printing paper by using coiled material, so as to solve the technical problem of high efficiency and low loss of single-copy carbonless copy printing paper.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a production equipment for producing single-copy carbonless copy printing paper using roll material, including a roll-off seat, a correction device, a paper pulling device, a longitudinal cutting device, a rotary cutting device, a conveying device, a pad conveying device, a conveyor belt, and a vibrating paper collection table installed in sequence, and also including a power system and an electrical control system, wherein there are at least two sets of roll-off seats, the pad conveying device is installed above the conveying device, the conveyor belt is connected to the back of the conveyor belt of the conveying device and is lower than the conveyor belt, and the table panel of the vibrating paper collection table is behind the conveyor belt and is lower than the conveyor belt surface and tilted backward.

[0007] A further technical solution is that the unwinding seat includes two vertical wall panels, at least one paper guide roller is installed on one side between the vertical wall panels, and the paper guide roller is connected to the vertical wall panels with rolling bearings; an unwinding shaft is installed on the top of the two vertical wall panels through the bearing seat, and one end of the unwinding shaft is also connected to a magnetic powder clutch, which is installed on one vertical wall panel.

[0008] In a further technical solution, the paper pulling device includes a driving roller, a rubber pressure roller pressing on the driving roller, and a set of steering rollers installed in front. The longitudinal cutting device includes a bottom roller and a circular dotted line knife installed above the bottom roller and pressing on the bottom roller.

[0009] A further technical solution is that the rotary cutting device includes a bottom knife roller and a knife-mounting roller, and the knife-mounting roller has multiple slots for mounting multiple linear knives; the rotary cutting device also includes a pair of small conveying rollers installed in the front.

[0010] According to a further technical solution, the conveying device includes a conveyor belt, a rotating pressing plate is installed at the front end of the conveyor belt, and a paper pressing flat belt is installed behind the rotating pressing plate.

[0011] Compared with existing technologies, the present invention offers the following advantages: The apparatus for producing single-copy carbonless copy paper from roll stock employs a sequentially installed unwinding station, a deflection correction device, a paper pulling device, a slitting device, a rotary cutting device, a conveyor device, a pad conveyor device, a conveyor belt, a vibrating paper delivery platform, and a power system and electrical control system. This enables continuous production of roll carbonless copy paper as the raw material, reduces the turnover of intermediate semi-finished products, and improves production efficiency. Furthermore, by cutting the roll stock and accurately setting the length, processing allowances can be minimized, reducing processing losses. This technical solution solves the problem of high efficiency and low loss in producing single-copy carbonless copy paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attachment Figure 1 This is a schematic diagram of the production equipment of this utility model.

[0013] Attachment Figure 2 It is a schematic diagram of an unwinding seat of production equipment of the utility model.

[0014] Attachment Figure 3 It is a schematic diagram of the product produced by this utility model.

[0015] Explanation of the symbols in the accompanying drawings: 1—upper paper, 2—middle paper, 3—lower paper, 4—single semi-finished product, 5—pad, 6—heat shrink film, 7—transverse tear line, 8—longitudinal tear line, 10—unwinding seat, 20—correction device, 30—paper pulling device, 40—rotary cutting device, 50—conveyance device, 60—pad conveying device, 70—conveyor belt, 80—vibrating paper collection table, 90—longitudinal cutting device. DETAILED DESCRIPTION

[0016] In order to make the implementation objectives, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings in the form of embodiments.

[0017] As shown in the schematic diagram of the production equipment embodiment in Figure 1, this production equipment for producing single-copy carbonless copy printing paper using roll material includes a roll-out stand 10, a correction device 20, a paper pulling device 30, a longitudinal cutting device 90, a rotary cutting device 40, a conveying device 50, a pad conveying device 60, a conveyor belt 70, and a vibrating paper collection table 80 installed in sequence, and also includes a power system and an electrical control system.

[0018] As shown in Figure 2 , the unwinding station 10 comprises two vertical wall panels 13. At least one paper guide roller 11 is mounted on one side between the vertical wall panels 13. This roller 11 is connected to the vertical wall panels 13 via rolling bearings, enabling flexible rotation. An unwinding shaft 12 is mounted on the top of each vertical wall panel 13 via a bearing seat. One end of the unwinding shaft 12 is also connected to a magnetic powder clutch 14, which is mounted on one of the vertical wall panels 13. The magnetic powder clutch 14 generates a braking force, the magnitude of which is controlled by adjusting the current flowing into the magnetic powder clutch 14. Therefore, each magnetic powder clutch 14 is equipped with a current regulator in its electrical control system to adjust the tension of each layer of paper to ensure smooth paper transport.

[0019] There are at least two sets of unwinding seats 10, and the number of unwinding seats 10 is configured according to the number of product sections. In this embodiment, a triple-section product is configured, that is, three sets of unwinding seats 10 are configured; when producing a quadruple-section product, four sets of unwinding seats 10 are configured. Similarly, the number of unwinding seats 10 for other section products is configured according to the number of sections.

[0020] As attached Figure 3 The figure shows a schematic diagram of an embodiment of the product produced by the utility model, which includes multiple sets of single-copy carbonless printing paper, each of which is padded with a pad 5 on the top and bottom, and is packaged with a heat shrink film 6. The single-copy carbonless printing paper consists of an upper paper 1, a middle paper 2, and a lower paper 3, with a horizontal tear line 7 and a longitudinal tear line 8 pressed in the middle.

[0021] As shown in Figure 1, the correction device 20 is composed of a plurality of high-precision CNC correction devices (utility model patent number: 2019224780041) designed by our company in 2019.

[0022] The paper pulling device 30 comprises a driving roller 31, a rubber pressure roller 32 pressing against the driving roller 31, and a set of steering rollers 33 mounted in front of it. During operation, the upper, middle, and lower sheets of paper 1, 2, and 3 are deflected by the steering roller 33 and then stacked together before being fed between the driving roller 31 and the rubber pressure roller 32. The rubber pressure roller 32 compresses the paper, and the rotation of the driving roller 31 generates a pulling force on the paper, causing it to be transported backward. The magnitude of this pulling force is controlled by adjusting the current entering the magnetic powder clutch 14.

[0023] The slitting device 90 includes a bottom roller 91 and a dotted-line blade 92 mounted above and pressing against the bottom roller 91. As paper passes over the bottom roller 91, the dotted-line blade 92 is pressed down, continuously cutting longitudinal tear lines 8 into the paper. Multiple dotted-line blades 92 can be mounted simultaneously above the bottom roller 91 to create multiple longitudinal tear lines, depending on the product's needs.

[0024] The rotary cutting device 40 includes a bottom blade roller 42 and a blade-mounting roller 43. The blade-mounting roller 43 has multiple slots for simultaneously mounting multiple linear blades. The linear blades are fixed to the blade-mounting roller 43 and rotate to press against the bottom blade roller 42, breaking the paper on the bottom blade roller 42. When the linear blades' cutting edges are continuous, they function as cutters 41, severing the paper. When the linear blades' cutting edges are dotted, they create a tear line. The rotary cutting device 40 also includes a pair of small conveyor rollers 44 mounted at the front. These rollers clamp and pull the paper, ensuring a stable feed between the bottom blade roller 42 and the blade-mounting roller 43.

[0025] During production, a cutter blade 41 and a straight dotted line blade 45 can be installed simultaneously on the blade roller 43. The straight dotted line blade 45 is first used to press the aligned continuous paper into a transverse tear line 7, and then the cutter blade 41 is used to cut the paper into individual copies. Depending on the product requirements, multiple straight dotted line blades 45 can be installed simultaneously on the blade roller 43 to cut multiple transverse tear lines 7.

[0026] The conveyor 50 includes a conveyor belt 51 with a rotating pressure plate 52 mounted on its front end and a paper pressing belt 53 mounted behind the rotating pressure plate 52. As individual semi-finished products 4 enter the conveyor 50, the rotating pressure plate 52 gently presses the paper, allowing it to smoothly enter the conveyor belt 51. The paper is then gently pressed by the paper pressing belt 53 and conveyed backward. The speed of the conveyor belt 51 is slightly faster than the conveying speed of the unwound coil, allowing the cut individual semi-finished products 4 to quickly leave the cutting blade 41. There are gaps between the individual semi-finished products 4 on the conveyor belt 51, preventing them from overlapping, ensuring smoother conveyance.

[0027] The pad conveying device 60 is installed above the conveying device 50 and includes a square container for storing the pad 5. A paper outlet is opened on one side of the bottom of the container, and a paper pickup wheel is installed on the paper outlet to convey the pad 5 to the middle of the conveying device 50.

[0028] An auxiliary elastic pressure piece 71 is installed above the conveyor belt 70 to keep the paper in place. The conveyor belt 70 is connected to the rear of the conveyor belt 51 and is lower than the conveyor belt 51. The speed of the conveyor belt 70 is lower than that of the conveyor belt 51. This allows the semi-finished product 4 entering from behind to press against the semi-finished product 4 entering from the front, allowing the front and rear semi-finished products 4 to overlap. At the same time, the pad 5 conveyed at intervals can land on the semi-finished product 4 and can also be inserted into the semi-finished product 4. The auxiliary elastic pressure piece 71 gently presses the stacked semi-finished products 4 to keep the paper in place during transportation, ensuring smoother transportation.

[0029] The vibrating paper collection table 80 adopts the vibrating paper collection table with three-level vibration reduction and automatic lifting functions developed by our company in 2020 (utility model patent number: 2020217053187). The table panel 81 of the vibrating paper collection table 80 is behind the conveyor belt 70 and lower than the belt surface of the conveyor belt 70, and is tilted backward, so that the single semi-finished products 4 conveyed can fall on the table panel 81, and the high-frequency vibration of the vibrating paper collection table 80 is used to stack the single semi-finished products 4 neatly one by one.

[0030] The power system includes a transmission mechanism of the main equipment, which is used to generate rotational power for the driving shafts of the paper pulling device 30, the longitudinal cutting device 90, the rotary cutting device 40, the conveying device 50, the pad conveying device 60, and the conveyor belt 70, thereby driving the operation of various components of the equipment.

[0031] The electrical control system electrically connects the electrical components of each device and provides power to control the operation of the equipment.

[0032] The technical solution of the utility model uses common materials, is suitable for industrial production, and is feasible and practical.

Claims

1. A production device for producing single-copy carbonless copy printing paper using roll material, characterized by: It includes an unwinding seat, a deviation correction device, a paper pulling device, a longitudinal cutting device, a rotary cutting device, a conveying device, a pad conveying device, a conveyor belt, and a vibrating paper receiving table installed in sequence, as well as a power system and an electrical control system. There are at least two sets of unwinding seats, the pad conveying device is installed above the conveying device, the conveyor belt is connected to the back of the conveyor belt of the conveying device and is lower than the conveyor belt, and the table panel of the vibrating paper receiving table is behind the conveyor belt, lower than the conveyor belt surface and tilted backward.

2. The production equipment for producing single-copy carbonless copy printing paper using a roll of material according to claim 1, characterized in that: The unwinding seat includes two vertical wall panels, at least one paper guide roller is installed on one side between the vertical wall panels, and the paper guide roller is connected to the vertical wall panels by rolling bearings; an unwinding shaft is installed on the top of the two vertical wall panels through the bearing seat, and one end of the unwinding shaft is also connected to a magnetic powder clutch, which is installed on one vertical wall panel.

3. The production equipment for producing single-copy carbonless copy printing paper using a roll of material according to claim 2, characterized in that: The paper pulling device comprises a driving roller, a rubber pressure roller pressed on the driving roller, and a group of steering rollers installed in the front.

4. The production equipment for producing single-copy carbonless copy printing paper using a roll of material according to claim 3, characterized in that: The longitudinal cutting device comprises a bottom roller and a circular dotted line knife which is installed above the bottom roller and pressed on the bottom roller.

5. The production equipment for producing single-copy carbonless copy printing paper using a roll of material according to claim 4, characterized in that: The rotary cutting device comprises a bottom knife roller and a knife-mounting roller, wherein the knife-mounting roller is provided with a plurality of slots for mounting linear knives; the rotary cutting device also comprises a pair of small conveying rollers mounted in the front.

6. The production equipment for producing single-copy carbonless copy printing paper using a roll of material according to claim 5, characterized in that: The conveying device comprises a conveyor belt, a rotary pressing sheet is installed on the front end of the conveyor belt, and a paper pressing flat belt is installed behind the rotary pressing sheet.

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