A preparation device and method of multi-color laser transfer paper

Abstract

The application discloses a kind of preparation devices of multicolor laser transfer paper, including the drying oven that paper tape passes, the wave mechanism of being located in middle part and being located on the upper and lower sides of paper tape is provided on the drying oven, the wave mechanism of upper and lower sides is symmetrically arranged relative to paper tape and both form the size of the aperture with cyclic variation.The application, by being located in the wave mechanism of paper tape upper and lower sides in drying oven, makes the airflow that flows through paper tape be in the state of high-low cyclic variation, this kind of setting can accelerate paper tape drying, provide drying speed, can also effectively avoid the phenomenon that paper tape appears uneven heating and leads to local dry roll, improve drying quality.A kind of preparation method of multicolor laser transfer paper, when drying paper tape, by low-temperature drying, high-speed conveying and low-speed drying treatment to paper tape, so that paper tape can be quickly dried in low-temperature state, and can reduce energy consumption while improving the speed and quality of paper tape drying.

Description

Technical Field

[0001] The present invention relates to the technical field of laser transfer paper preparation, and in particular to a device and method for preparing colorful laser transfer paper. Background Art

[0002] In the cigarette industry, in order to establish corporate image, enhance brand value, and also for the purpose of anti-counterfeiting, cigarette industrial enterprises, while ensuring the intrinsic quality of cigarettes, are paying more and more attention to the development and utilization of cigarette packaging - transfer paper, and have printed pictures and texts on it. From then on, cigarette aluminum foil paper has entered a new development period with rich pictures and texts, colorful and moisture-proof and anti-counterfeiting functions.

[0003] At present, some transfer paper drying equipment on the market directly prepare and dry transfer paper, which is prone to uneven paper drying. The transfer paper is prone to burnt and wrinkled, causing damage to the transfer paper, and the drying efficiency is low, the drying is not thorough, and a serious waste of resources. Analysis shows that the factors causing the above defects are as follows: 1. The temperature in the drying box is too high, and when the drying airflow in the drying box flows, there is uneven temperature around the paper tape and low airflow velocity, which will cause uneven drying of the paper tape and the phenomenon of dry curling. 2. During the process of discharging water vapor in the drying box, the problem of temperature fluctuation in the drying box is prone to occur, and the water vapor is not discharged thoroughly, and the humidity in the drying box is high, which leads to incomplete drying of the paper tape. 3. The existing paper tape drying treatment method usually uses a higher drying temperature, increases the speed of the airflow in the drying box, and reduces the speed of the paper tape movement to achieve high-temperature and high-airflow drying treatment, but this method is prone to energy waste.

[0004] To this end, the present invention provides a device and method for preparing colorful laser transfer paper. Summary of the Invention

[0005] The purpose of the present invention is to solve the problems mentioned in the background technology and to propose a device and method for preparing colorful laser transfer paper.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A device for preparing colorful laser transfer paper includes a drying box through which a paper tape passes. The drying box is provided with a wave mechanism located in the middle and on the upper and lower sides of the paper tape. The wave mechanisms on the upper and lower sides are symmetrically arranged relative to the paper tape and form a narrow passage with cyclical changes in size. The paper tape passes through the narrow passage. The drying box is provided with an air inlet pipe and an air exhaust pipe near both ends. A magnetic filter turntable box is connected between the air inlet pipe and the air exhaust pipe. A heating pipe is provided in the drying box.

[0008] As a further description of the above technical solution:

[0009] The wave mechanism includes a middle plate, a buffer plate and a side plate. The two ends of the middle plate rotate and slide up and down with the two sides in the drying box. The two ends of the middle plate are hingedly connected to the side plates through the buffer plates. The side plates located at the two ends of the middle plate slide horizontally with the drying box and are set away from the paper tape.

[0010] As a further description of the above technical solution:

[0011] Slideways are provided on both sides of the drying box, and sliders are provided in the slideways. Positioning shafts rotatably connected to the sliders are fixedly connected to the middle parts of the two ends of the middle plate.

[0012] As a further description of the above technical solution:

[0013] The wave mechanism includes a rotating shaft, which is rotatably connected to the side wall of the drying box and is located on the outside of the middle plate. The axis of the rotating shaft is parallel to the axis of the positioning shaft and one end of the rotating shaft is fixedly connected to an arm plate, one end of the arm plate is fixedly connected to a traction shaft, and a connecting rod is fixedly connected to the middle part of the outer side of the middle plate, and the free end of the connecting rod is rotatably connected to the traction shaft.

[0014] As a further description of the above technical solution:

[0015] The wave mechanism includes a transmission shaft, which is rotatably connected to one side of the drying box. The fixed sleeves at both ends of the transmission shaft are provided with worm sleeves. The other end of the rotating shaft is fixedly connected to a worm wheel that engages with the worm sleeve. The spiral rotation directions of the worm sleeves located on the upper and lower sides of the paper tape are opposite.

[0016] As a further description of the above technical solution:

[0017] The magnetic filter turntable box includes a connecting disk, a magnetic filter disk and magnetic filter balls. The connecting disk is a hollow structure and has eccentrically distributed docking pipes fixedly connected on both sides. The air intake pipe and the air exhaust pipe are connected through the docking pipes and the connecting disk respectively. The magnetic filter disk is rotatably connected in the connecting disk and has magnetic filter balls adsorbed on both sides.

[0018] As a further description of the above technical solution:

[0019] The magnetic filter disc is provided with uniformly distributed polygonal holes, and the magnetic filter ball comprises a water absorption sleeve which wraps the magnetic ball.

[0020] A method for preparing colorful laser transfer paper comprises the following steps:

[0021] Step 1: Low-temperature drying: Use conveyor rollers at both ends of the drying box to pass the paper tape through the drying box, and control the temperature in the drying box between 25-30 degrees;

[0022] Step two, high-speed conveying: control the speed of the paper tape through the drying box to be 0.4-0.6 m / s;

[0023] Step three, low-speed drying: control the airflow velocity in the drying box near the air inlet pipe and the air outlet pipe to be 1-1.5 m / s, and the frequency of the reciprocating motion of the middle plate up and down to be 2-3 times / s;

[0024] Step four, winding.

[0025] As a further description of the above technical solution:

[0026] In step three, the frequency of the reciprocating motion of the middle plate up and down in the drying box is 3 times / s, and the temperature in the drying box is 25 degrees.

[0027] As described above, due to the adoption of the above technical solution, the beneficial effects of the present application are:

[0028] 1. In the present application, by arranging the wave mechanism on both sides of the paper tape in the drying box, the airflow flowing through the paper tape is in a high-low cyclic change state, which can accelerate the drying of the paper tape, provide the drying speed, and effectively avoid the phenomenon of uneven heating of the paper tape leading to local dry winding, thereby improving the drying quality.

[0029] 2. In the present application, by arranging the magnetic filter rotary disc box outside the drying box for filtering the water vapor in the drying airflow in the drying box, and arranging the magnetic attraction filter ball in the magnetic filter rotary disc box, the magnetic attraction filter ball uses the water absorption sleeve to collect water vapor, the water absorption sleeve can increase the contact area of the magnetic filter rotary disc box and the airflow, thereby improving the water vapor filtering amount of the flowing airflow, and the arrangement does not affect the airflow velocity of the airflow flowing through the magnetic filter rotary disc box, improves the stability of the drying airflow flow, and thereby improves the reliability of the paper tape drying.

[0030] 3. In the present application, when drying the paper tape, by low-temperature drying, high-speed conveying and low-speed drying treatment of the paper tape, the paper tape can be quickly dried at low temperature, and the energy consumption can be reduced while improving the drying speed and quality of the paper tape. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 A structure diagram of a multi-color laser transfer paper preparation device is provided for the present application;

[0032] Figure 2 A structure diagram of a wave mechanism of a multi-color laser transfer paper preparation device is provided for the present application; Figure 1 A schematic diagram of the back;

[0033] Figure 3 A structure diagram of a wave mechanism of a multi-color laser transfer paper preparation device is provided for the present application;

[0034] Figure 4This is a planar schematic diagram of the coordination between the middle plate and paper tape of a device for preparing multi-color laser transfer paper proposed by the present invention;

[0035] Figure 5 This is a schematic cross-sectional view of a magnetic filter turntable box of a device for preparing multi-color laser transfer paper proposed by the present invention;

[0036] Figure 6 This is a planar schematic diagram of a magnetic filter disc of a device for preparing colorful laser transfer paper proposed by the present invention.

[0037] Legend:

[0038] 1. Paper tape; 2. Drying box; 21. Slide; 211. Slider; 3. Wave mechanism; 31. Middle plate; 311. Positioning shaft; 312. Connecting rod; 32. Buffer plate; 33. Side plate; 34. Rotating shaft; 341. Arm plate; 3411. Traction shaft; 342. Worm gear; 35. Drive shaft; 351. Worm sleeve; 4. Passage; 5. Inlet pipe; 6. Exhaust pipe; 7. Magnetic filter turntable box; 71. Connecting plate; 711. Docking pipe; 72. Magnetic filter disc; 721. Polygonal hole; 73. Magnetic filter ball; 731. Magnetic ball; 732. Water absorption jacket; 8. Heating tube. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making any creative efforts shall fall within the scope of protection of the present invention.

[0040] Example 1

[0041] See also Figure 1-6A device for preparing multi-colored laser transfer paper includes a drying box 2 through which a paper strip 1 passes. The drying box 2 is provided with a wave mechanism 3 located in the middle and on the upper and lower sides of the paper strip 1. The paper strip 1 is multi-colored laser transfer paper. The wave mechanisms 3 are symmetrically arranged relative to the paper strip 1 and form a constriction 4 with a cyclically changing size. As the paper strip 1 passes through the constriction 4, the drying box 2 is provided with an air inlet pipe 5 and an air exhaust pipe 6 near each end. The air inlet pipe 5 and the air exhaust pipe 6 respectively supply air into the drying box 2 and extract air from the drying box 2, forming a circulating airflow within the drying box 2. As the airflow passes through the constriction 4 and the size of the constriction 4 changes, the flow rate of the airflow through the constriction 4 changes cyclically. This varying flow rate accelerates the drying of the passing paper strip while preventing the paper strip from drying out. A magnetic filter turntable 7 is connected between the air inlet pipe 5 and the air exhaust pipe 6. The magnetic filter turntable 7 quickly absorbs moisture within the drying box 2 without affecting the temperature of the airflow circulating within the drying box 2. A heating pipe 8 is provided in the drying box 2 , and the function of the heating pipe 8 is to provide the drying box 2 with the temperature required for drying.

[0042] Specifically, the wave mechanism 3 includes a middle plate 31, a buffer plate 32 and a side plate 33. The two ends of the middle plate 31 rotate and slide up and down with the two sides inside the drying box 2. The specific cooperation structure is that a slide 21 is opened on both sides of the drying box 2, and a slider 211 is provided in the slide 21. The middle part of the two ends of the middle plate 31 is fixedly connected with a positioning shaft 311 that is rotatably connected to the slider 211. The two ends of the middle plate 31 are hingedly connected to the side plates 33 through the buffer plates 32. The side plates 33 at both ends of the middle plate 31 slide horizontally with the drying box 2 and are set away from the paper tape 1. Specifically, a window is opened at the bottom and the bottom of the drying box 2, and then a slide groove is opened at both ends of the window guide to slide with the side plates 33. When the middle plate 31 rotates and slides up and down, it will drive the buffer plates 32 and the side plates 33 to move, and the side plates 33 slide in the slide groove. It should be noted that the middle plate 31, the buffer plates 32 and the side plates 33 have the function of blocking the above-mentioned windows. When the middle plates 31 on the upper and lower sides of the paper tape 1 move up and down, the size of the space enclosed by the middle plates 31 on both sides of the paper tape 1 and the drying box 2 changes.

[0043] The wave mechanism 3 includes a rotating shaft 34, which is rotatably connected to the side wall of the drying box 2 and is located on the outer side of the middle plate 31. The rotating shaft 34 is parallel to the axis of the positioning shaft 311 and one end of the rotating shaft is fixedly connected to an arm plate 341. One end of the arm plate 341 is fixedly connected to a traction shaft 3411. A connecting rod 312 is fixedly connected to the middle part of the outer side of the middle plate 31. The free end of the connecting rod 312 is rotatably connected to the traction shaft 3411. When the rotating shaft 34 rotates, the traction shaft 3411 will drive the connecting rod 312 to move up and down while swinging, wherein the connecting rod 312 is perpendicular to the middle plate 31, so that the middle plate 31 will move up and down and swing back and forth at the same time, that is, the middle plates on both sides of the paper tape 1 will change to be parallel and intersecting with the extension lines. This arrangement ensures that the accelerated airflow through the paper tape 1 will not cause the paper tape to dry and roll, thereby improving the flatness of the paper tape.

[0044] Furthermore, the wave mechanism 3 includes a transmission shaft 35, which is rotatably connected to one side of the drying box 2. The two ends of the transmission shaft 35 are fixedly sleeved with worm sleeves 351, and the other end of the rotating shaft 34 is fixedly connected to a worm wheel 342 that engages with the worm sleeve 351. The spiral rotation directions of the worm sleeves 351 located on the upper and lower sides of the paper tape 1 are opposite. A drive motor can be installed on the outside, and the drive motor is fixedly connected to one end of the transmission shaft 35. When the transmission shaft 35 rotates, the rotating shaft 34 rotates with the cooperation of the worm sleeve 351 and the worm wheel 342.

[0045] The magnetic filter turntable box 7 includes a connecting disc 71, a magnetic filter disc 72, and magnetic filter balls 73. The connecting disc 71 is hollow and has eccentrically spaced butt joints 711 fixedly connected to its sides. The intake pipe 5 and the exhaust pipe 6 are connected to the connecting disc 71 through the butt joints 711. The magnetic filter disc 72 is rotatably connected to the connecting disc 71 and has magnetic filter balls 73 attached to its sides. When the moist air passes through the magnetic filter disc 72 and the magnetic filter balls 73, the magnetic filter balls 73 fully absorb the moisture without causing blockage in the air flow gaps, thus maintaining normal airflow. The magnetic filter disc 72 is provided with evenly spaced polygonal holes 721. When the magnetic filter balls 73 are attached to the magnetic filter disc 72, the polygonal holes 721 will not become clogged. The magnetic filter ball 73 includes a magnetic ball 731 wrapped in a water absorption sleeve 732 outside the magnetic ball 731. The water absorption sleeve 732 can be made of a water-absorbing resin material to support the ball shell structure, which has the advantages of large water absorption capacity and is not easy to evaporate.

[0046] A method for preparing colorful laser transfer paper comprises the following steps:

[0047] Step 1: Low-temperature drying: Use conveying rollers at both ends of the drying box 2 to pass the paper tape 1 through the drying box 2, and control the temperature in the drying box 2 between 25 and 30 degrees. Preferably, the temperature in the drying box 2 is 25 degrees. This temperature setting can reduce energy consumption, that is, there is no need for too high a temperature. The air flow is mainly used to dry the paper tape, avoiding deformation of the paper tape due to uneven heating.

[0048] Step 2: High-speed conveying: Control the speed of the paper strip 1 passing through the drying box 2 to be 0.4-0.6 m / s. Due to the action of the wave mechanism 3, the paper strip passing through the narrow pass 4 dries faster, so it is necessary to increase the conveying speed of the paper strip 1, thereby improving the drying efficiency;

[0049] Step 3, low-speed drying: Control the air flow velocity near the air inlet pipe 5 and the exhaust pipe 6 in the drying box 2 to be 1-1.5 m / s, and the frequency of the up-and-down reciprocating motion of the middle plate 31 to be 2-3 times / s, preferably the frequency of the up-and-down reciprocating motion of the middle plate 31 to be 3 times / s. This setting makes the frequency of the air flow velocity change flowing through the paper tape 1 the best state for the drying process of the colorful laser transfer paper, and this state makes the flatness and dryness of the dried paper tape more uniform;

[0050] Step 4: Rewinding: The paper tape 1 discharged from the outlet of one end of the drying box 2 is directly wound around the winding roller to achieve rewinding.

[0051] When using the preparation device to dry laser multi-color transfer paper, first connect the two fans in series to the air inlet pipe 5 and the air exhaust pipe 6 respectively, then introduce the paper tape 1 from the inlet at one end of the drying box 2, and then lead it out from the outlet at the other end, then ensure that the paper tape 1 is in a horizontal state in the drying box 2, and then start the two fans, and the drying box 1, the air inlet pipe 5 and the air exhaust pipe 6 are in an air flow state, and then supply power to the heating tube 8, and the heating tube 8 generates heat. When the temperature in the drying box 2 reaches a certain temperature, the transmission shaft 35 is controlled to rotate, and the worm sleeve 351 drives the worm gear 342 to rotate, and the rotation The shaft 34 rotates, and the traction shaft 3411 drives the connecting rod 312 to move up and down and swing back and forth at the same time. The middle plate 31 moves up and down and swings at the same time. The buffer plate 32 will drive the side plate 33 to slide. At this time, the size of part of the space on the upper and lower sides of the paper tape 1 changes. This change will cause the flow rate of the airflow passing through here to change. Simply put, when the space becomes smaller, the flow rate of the airflow flowing through the upper and lower sides of the paper tape 1 increases, accelerating the drying. When the space increases, the flow rate of the airflow flowing through both sides of the paper tape 1 decreases to avoid the phenomenon of dry curling of the paper tape caused by air with excessive flow rate, and then control the operation of the paper tape 1.

[0052] The dried water vapor in the drying box 2 will enter the connecting plate 71, and then flow through the densely distributed magnetic filter balls 73. The water absorption sleeves 732 on the magnetic filter balls 73 absorb the water vapor in the air flow, so that the dry air flow returns to the drying cylinder 2 to carry out the next drying process on the paper tape 1.

[0053] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A device for preparing multi-color laser transfer paper, comprising a drying box (2) through which a paper tape (1) passes, characterized in that: The drying box (2) is provided with a wave mechanism (3) located in the middle and on the upper and lower sides of the paper belt (1). The wave mechanisms (3) on the upper and lower sides are symmetrically arranged relative to the paper belt (1) and the two form a narrow pass (4) with a cyclic change in size. The paper belt (1) passes through the narrow pass (4). The drying box (2) is provided with an air inlet pipe (5) and an air exhaust pipe (6) near both ends. A magnetic filter turntable box (7) is connected between the air inlet pipe (5) and the air exhaust pipe (6). A heating pipe (8) is provided in the drying box (2). The wave mechanism (3) includes a middle plate (31), a buffer plate (32) and a side plate (33). The two ends of the middle plate (31) and the two sides in the drying box (2) rotate and slide up and down. The middle plate ( The two ends of the middle plate (31) are respectively hingedly connected to the side plates (33) through buffer plates (32), the side plates (33) located at the two ends of the middle plate (31) and the drying box (2) are horizontally slidably matched and are arranged away from the paper tape (1), the wave mechanism (3) includes a rotating shaft (34), the rotating shaft (34) is rotatably connected to the side wall of the drying box (2) and is located outside the middle plate (31), the rotating shaft (34) is parallel to the axis of the positioning shaft (311) and one end of the rotating shaft is fixedly connected to an arm plate (341), one end of the arm plate (341) is fixedly connected to a traction shaft (3411), the middle part of the outer side of the middle plate (31) is fixedly connected to a connecting rod (312), and the free end of the connecting rod (312) is rotatably connected to the traction shaft (3411).

2. The device for preparing colorful laser transfer paper according to claim 1, characterized in that: Slideways (21) are provided on both sides of the drying box (2), and sliders (211) are provided in the slideways (21). Positioning shafts (311) rotatably connected to the sliders (211) are fixedly connected to the middle of the two ends of the middle plate (31).

3. The device for preparing colorful laser transfer paper according to claim 2, characterized in that: The wave mechanism (3) comprises a transmission shaft (35) which is rotatably connected to one side of the drying box (2); worm sleeves (351) are fixedly provided at both ends of the transmission shaft (35); a worm wheel (342) engaged with the worm sleeve (351) is fixedly connected to the other end of the rotating shaft (34); and the spirals on the worm sleeves (351) located on the upper and lower sides of the paper belt (1) have opposite rotation directions.

4. The device for preparing colorful laser transfer paper according to claim 1, characterized in that: The magnetic filter turntable box (7) comprises a connecting disk (71), a magnetic filter disk (72) and magnetic filter balls (73); the connecting disk (71) is a hollow structure and has eccentrically distributed butt joint pipes (711) fixedly connected on both sides; the air inlet pipe (5) and the air exhaust pipe (6) are respectively connected to the connecting disk (71) through the butt joint pipes (711); the magnetic filter disk (72) is rotatably connected in the connecting disk (71) and has magnetic filter balls (73) adsorbed on both sides.

5. The device for preparing colorful laser transfer paper according to claim 4, characterized in that: The magnetic filter disc (72) is provided with uniformly distributed polygonal holes (721), and the magnetic filter ball (73) comprises a magnetic ball (731) and a water absorption sleeve (732) wrapped around the outside of the magnetic ball (731).

6. A method for preparing colorful laser transfer paper, characterized in that: The preparation method using the multi-color laser transfer paper preparation device according to claim 1 comprises the following steps: Step 1: Low-temperature drying: Use conveying rollers at both ends of the drying box (2) to pass the paper tape (1) through the drying box (2), and control the temperature in the drying box (2) to be between 25-30°C; Step 2: High-speed conveying: controlling the speed of the paper tape (1) passing through the drying box (2) to be 0.4-0.6 m / s; Step 3, low-speed drying: control the air flow rate near the air inlet pipe (5) and the air exhaust pipe (6) in the drying box (2) to be 1-1.5 m / s, and the frequency of the up and down reciprocating motion of the middle plate (31) to be 2-3 times / s; Step 4: Roll up.

7. The method for preparing colorful laser transfer paper according to claim 6, wherein: In step 3, the frequency of the up-and-down reciprocating motion of the middle plate (31) is 3 times / s, and the temperature in the drying box (2) is 25°C.

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