Paper rewinding machine

Abstract

The utility model relates to the technical field of mechanisms for winding strip materials, in particular to a paper rewinder which comprises a rack, a drying mechanism comprises a drying box, paper openings are correspondingly formed in the front end and the rear end of the drying box, an upper drying set and a lower drying set are arranged in the drying box, and a drying channel opposite to the paper openings is formed between the upper drying set and the lower drying set. Paper can penetrate through the upper drying set and the lower drying set, the upper drying set and the lower drying set are each composed of a plurality of drying units arranged in the width direction of the drying box, the distance between every two adjacent drying units is adjustable, sliding rods are arranged at the front end and the rear end of the upper drying set and the front end and the rear end of the lower drying set, the sliding rods are perpendicular to the paper conveying direction, and the drying units are arranged on the sliding rods in a sliding mode through sliding blocks. According to the paper rewinding machine, through the multiple sets of drying units with the adjustable intervals, the width of the drying range is matched with the width of paper, and the phenomenon that in the paper drying process, heat energy released by the drying heating mechanism cannot effectively dry the paper, and consequently waste is caused is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanisms for winding strip materials, in particular to a paper rewinding machine. Background Art

[0002] In the modern papermaking industry, paper rewinding machine is an important equipment. For example, the patent with authorization announcement number CN213947824U discloses a paper processing embossing machine with air-drying structure, which is convenient for embossing on paper. The air-drying mechanism, i.e., the fan, transmits the heat on the electric heating tube to the main tube through wind power, and enters the cover through multiple connecting tubes and air inlet pipes, while the hot air is sprayed on the embossed paper through multiple strip grooves at the same time, and the ink on the embossed paper is dried at the same time, which is convenient for timely drying of the colored embossed ink, avoiding the situation of ink contamination, and ensuring the production quality of paper.

[0003] However, the drying width of the drying mechanism in the existing rewinding machine is fixed. In actual production, the width of the paper is not constant, which results in the heat energy released by the drying mechanism being unable to accurately adapt to the width of the paper, resulting in energy waste.

[0004] For example, when the paper width is narrow, the drying mechanism still dries in a fixed wide range, and a large amount of heat energy is wasted in the area not covered by the paper, which not only causes unnecessary energy consumption, but also increases production costs. In the pursuit of energy-saving and environmentally friendly production mode, the existing paper rewinder drying technology obviously can no longer meet the demand. Therefore, adjusting the drying range width of the paper rewinder to match the paper width has become an urgent problem to be solved. Utility Model Content

[0005] In order to solve the problem that the drying range width of the existing paper rewinder is fixed and cannot be adjusted, which easily causes energy waste, the utility model provides a paper rewinder, which uses a plurality of groups of drying units with adjustable spacing to make the drying range width match the width of the paper, thereby reducing the phenomenon that the heat energy released by the drying heating mechanism during the paper drying process fails to effectively dry the paper and causes waste.

[0006] The utility model provides a paper rewinding machine, comprising a frame, wherein an unwinding roller group, a gluing mechanism, an embossing mechanism, a drying mechanism and a winding roller group are sequentially arranged on the frame from front to back in the paper conveying direction, wherein the drying mechanism comprises a drying box, wherein the front and rear ends of the drying box are correspondingly provided with paper openings, wherein an upper drying group and a lower drying group are arranged in the drying box, wherein a drying channel opposite to the paper opening is formed between the upper drying group and the lower drying group, and paper can pass through, wherein the upper drying group and the lower drying group are both composed of a plurality of drying units arranged along the width direction of the drying box, and the spacing between adjacent drying units is adjustable. The paper passing through the drying channel is dried by the drying groups correspondingly arranged above and below, and the spacing between the plurality of drying units can be adjusted according to the paper width, so that the heat is more concentrated, the drying effect is better, and energy waste can be avoided.

[0007] Furthermore, the front and rear ends of the upper drying group and the lower drying group are both provided with sliding rods, the sliding rods are perpendicular to the paper conveying direction, and the drying unit is slidably arranged on the sliding rods through the sliders. The sliding adjustment of the drying unit is realized through the cooperation of the sliders and the sliding rods.

[0008] Furthermore, heat-insulating side plates are arranged at both ends of the slide bar, and the heat-insulating side plates are slidably arranged on the slide bar. By arranging the heat-insulating side plates at both sides, the heat energy dissipation of the drying unit can be reduced, and the drying effect can be ensured.

[0009] Furthermore, a first push rod is provided outside the drying box for driving the heat insulating side plates at both ends of the slide rod to move closer to or away from each other, and the movable end of the first push rod is fixedly connected to the heat insulating side plate. The first push rod is used to adjust the distance between the heat insulating side plates on both sides to adapt to papers of different widths.

[0010] Furthermore, the drying units are divided into side drying groups on both sides and a middle drying group placed between the side drying groups on both sides. The side drying groups are fixedly connected to the heat-insulating side plates through connecting plates. Springs are arranged between adjacent middle drying groups, and the springs are sleeved on the slide rods. The side drying groups on both sides are adjusted by the first push rod, and the remaining middle drying groups can be automatically evenly distributed under the action of the springs.

[0011] Furthermore, the drying unit includes a mounting plate and a heating source arranged in parallel, the slider is fixedly arranged on the mounting plate, a second push rod is arranged in the middle of the mounting plate, the heating source is fixedly connected to the movable end of the second push rod, and the heating source is arranged on a side close to the drying channel. The distance between the heating source and the paper is adjusted by the second push rod.

[0012] Furthermore, guide rods are fixedly arranged at both ends of the heating source, and connecting holes for the guide rods to slide longitudinally are provided at both ends of the mounting plate. The stability of the heating source adjustment is ensured by the arrangement of the guide rods at both ends of the heating source.

[0013] Furthermore, the upper drying group and the lower drying group are provided with at least five drying units correspondingly, which can be increased or decreased according to actual drying needs.

[0014] The beneficial effects of the utility model are:

[0015] The utility model provides a paper rewinding machine, which dries paper from the upper surface and the lower surface of the paper through the correspondingly arranged upper drying group and the lower drying group, and has a good drying effect; through the cooperation of the slider and the slide rod, the lateral spacing of the drying unit is adjusted, so that the drying range width of the drying unit is matched with the width of the paper, thereby reducing the waste caused by the failure to effectively utilize the heat energy in the paper drying process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural diagram of a paper rewinding machine;

[0018] Figure 2 It is the internal structure diagram of the drying mechanism;

[0019] Figure 3 It is a plan view of the drying mechanism;

[0020] Figure 4 It is a structural diagram of the drying unit;

[0021] In the figure, 1. frame, 2. unwinding roller group, 3. gluing mechanism, 4. embossing mechanism, 5. drying mechanism, 51. mounting plate, 52. heating source, 53. second push rod, 54. guide rod, 6. winding roller group, 7. drying box, 71. paper mouth, 72. sliding rod, 73. slider, 74. insulation side plate, 75. connecting plate, 76. spring, 77. first push rod. DETAILED DESCRIPTION

[0022] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0023] In order to meet the drying requirements of papers of different widths, a paper rewinding machine is designed. Figure 1As shown, it includes a frame 1, and the frame 1 is equipped with an unwinding roller group 2, a gluing mechanism 3, an embossing mechanism 4, a drying mechanism 5 and a winding roller group 6 from front to back in the paper conveying direction. The drying mechanism 5 includes a drying box 7, and the front and rear ends of the drying box 7 are correspondingly provided with a paper opening 71. The drying box 7 is provided with an upper drying group and a lower drying group. The upper drying group and the lower drying group are provided with at least five drying units respectively. A drying channel opposite to the paper opening 71 is formed between the upper drying group and the lower drying group, and the paper can pass through. The upper drying group and the lower drying group are both composed of a plurality of drying units arranged along the width direction of the drying box 7, and the spacing between adjacent drying units is adjustable. Among them, the working principles of the unwinding roller group 2, the gluing mechanism 3, the embossing mechanism 4 and the winding roller group 6 are mature existing technologies and will not be described in detail here.

[0024] Several drying units are arranged on the upper and lower sides of the drying channel to ensure the drying effect of the paper, and the spacing between adjacent drying units arranged in the width direction is adjustable so that the drying range width of the drying channel is adapted to the width of the paper, reducing the waste caused by ineffective utilization of the heat energy released by the drying group.

[0025] like Figure 2 and 3 As shown, specifically, the front and rear ends of the upper drying group and the lower drying group are both provided with a slide bar 72, the slide bar 72 is perpendicular to the paper conveying direction, and the drying unit is slidably arranged on the slide bar 72 through a slider 73. The upper drying group and the lower drying group are fixed in the drying box 7 through the slide bar 72, and the distance between adjacent drying units in the horizontal direction is adjusted by sliding the slider 73 arranged on the slide bar 72 to adapt to the width of the paper.

[0026] In order to reduce the heat dissipation in the drying box 7, the two ends of the slide bar 72 are provided with heat insulating side plates 74, and the heat insulating side plates 74 are slidably arranged on the slide bar 72. The heat insulating side plates 74 arranged at both ends of the slide bar 72 can make heat accumulate in the drying channel to reduce energy waste.

[0027] In order to electrically adjust the position of the heat-insulating side panels 74, a first push rod 77 is provided outside the drying box 7 for driving the heat-insulating side panels 74 at both ends of the slide bar 72 to move closer to or farther from each other, and the movable end of the first push rod 77 is fixedly connected to the heat-insulating side panels 74. The first push rod 77 is activated to drive the heat-insulating side panels 74 to move along the slide bar 72, so that the heat-insulating side panels 74 at both ends move closer to or farther from each other to adapt to the width of the paper.

[0028] In order to be able to electrically adjust the position of the drying unit, several drying units are divided into side drying groups on both sides and a middle drying group placed between the side drying groups on both sides. The side drying groups are fixedly connected to the insulating side plates 74 through connecting plates 75, and the side drying groups are fixed to the insulating side plates 74 through connecting plates 75. When the insulating side plates 74 move under the drive of the first push rod 77, the side drying groups also move accordingly. A spring 76 is arranged between adjacent middle drying groups, and the spring 76 is mounted on the slide rod 72. When the side drying groups move, the multiple middle drying groups located in the middle position will automatically adjust their positions under the elastic force of the spring 76, so that the upper and lower drying groups are evenly arranged to ensure that the paper is heated evenly.

[0029] like Figure 4 As shown, specifically, the drying unit includes a mounting plate 51 and a heating source 52 arranged in parallel, a slider 73 is fixedly arranged on the mounting plate 51, a second push rod 53 is arranged in the middle of the mounting plate 51, the heating source 52 is fixedly connected to the movable end of the second push rod 53, and the heating source 52 is arranged on a side close to the drying channel. The heating source 52 can be a device capable of releasing heat energy, such as a heating lamp or a heating wire, and the distance between the heating source 52 and the paper can be adjusted by the second push rod 53 to meet the drying requirements of different papers.

[0030] In order to ensure the stability of the longitudinal sliding of the heating source 52, guide rods 54 are fixedly arranged at both ends of the heating source 52, and connecting holes for the longitudinal sliding of the guide rods 54 are opened at both ends of the mounting plate 51. The guide rods 54 are vertically slidably arranged in the connecting holes of the mounting plate 51, thereby improving the stability of the heating source 52 when it slides vertically.

[0031] The above description is only illustrative rather than restrictive of the present invention. Those skilled in the art will understand that many modifications, changes or equivalents may be made without departing from the spirit and scope defined by the appended claims, but all will fall within the scope of protection of the present invention.

Claims

1. A paper rewinding machine, comprising a frame (1), wherein an unwinding roller group (2), a gluing mechanism (3), an embossing mechanism (4), a drying mechanism (5) and a rewinding roller group (6) are sequentially arranged above the frame (1) from front to back in the paper conveying direction, wherein: The drying mechanism (5) comprises a drying box (7), the front and rear ends of the drying box (7) are provided with paper openings (71) correspondingly, an upper drying group and a lower drying group are arranged inside the drying box (7), a drying passage opposite to the paper opening (71) is formed between the upper drying group and the lower drying group, and paper can pass through the passage, the upper drying group and the lower drying group are both composed of a plurality of drying units arranged along the width direction of the drying box (7), and the spacing between adjacent drying units is adjustable.

2. A paper rewinding machine according to claim 1, characterized in that: The front and rear ends of the upper drying group and the lower drying group are both provided with sliding rods (72), the sliding rods (72) are perpendicular to the paper conveying direction, and the drying unit is slidably arranged on the sliding rods (72) via sliding blocks (73).

3. A paper rewinding machine according to claim 2, characterized in that: Heat-insulating side plates (74) are provided at both ends of the slide bar (72), and the heat-insulating side plates (74) are slidably arranged on the slide bar (72).

4. A paper rewinding machine according to claim 3, characterized in that: A first push rod (77) is provided outside the drying box (7) for driving the heat insulating side plates (74) at both ends of the sliding rod (72) to move toward or away from each other, and a movable end of the first push rod (77) is fixedly connected to the heat insulating side plate (74).

5. A paper rewinding machine according to claim 4, characterized in that: The plurality of drying units are divided into side drying groups on both sides and a middle drying group disposed between the side drying groups on both sides. The side drying groups are fixedly connected to the heat-insulating side plates (74) via connecting plates (75). Springs (76) are disposed between adjacent middle drying groups. The springs (76) are sleeved on the slide rod (72).

6. A paper rewinding machine according to claim 5, characterized in that: The drying unit comprises a mounting plate (51) and a heating source (52) which are arranged in parallel, the sliding block (73) is fixedly arranged on the mounting plate (51), a second push rod (53) is arranged in the middle of the mounting plate (51), the heating source (52) is fixedly connected to the movable end of the second push rod (53), and the heating source (52) is arranged on a side close to the drying channel.

7. A paper rewinding machine according to claim 6, characterized in that: Guide rods (54) are fixedly provided at both ends of the heating source (52), and connection holes for allowing the guide rods (54) to slide longitudinally are provided at both ends of the mounting plate (51).

8. A paper rewinding machine according to claim 1, characterized in that: The upper drying group and the lower drying group are correspondingly provided with at least five drying units.

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