Napkin machine with improved folding mechanism

Abstract

The utility model discloses a napkin machine with an improved folding mechanism, which is characterized in that an inner folding device comprises a movable seat capable of transversely moving, and an inner folding fin plate is arranged at the top of the movable seat; an extending seat is arranged on the front side of the movable seat, a pre-folding roller set is arranged on the extending seat, the pre-folding roller set comprises two vertically-arranged pre-folding roller units, a rolling fit gap between the two pre-folding roller units is aligned to the top point of the inner folding fin plate, and a perfume spray head is arranged between the pre-folding roller set and the inner folding fin plate; the perfume touch head is connected with a perfume supply device, the surface of the tensioning pipe is smooth, the interior of the tensioning pipe is hollowed out to form an oil cavity, and the oil cavity is filled with oil liquid to serve as a heat-conducting medium; a heating pipe is arranged in the oil cavity and connected with a driving device. Perfume is sprayed during inward folding treatment, so that the perfume is remained on the inner layer of the finished napkin, and the fragrance is more lasting.

Description

Technical Field

[0001] The utility model relates to the technical field of napkin paper machines, in particular to a napkin paper machine with an improved folding mechanism. Background Art

[0002] Napkins are an indispensable item for our daily life when we dine. In most mid- to high-end hotels, consumers are provided with colorful, uniquely shaped and personalized napkins when dining. These colorful and uniquely shaped napkins can not only be used as beautiful decorations for plain tables, but also set off the dining atmosphere of consumers and leave them with a good consumption experience. In order to increase the use experience of napkins, there are also scented napkins.

[0003] However, most of the current napkin machines use a method of spraying perfume before drying. However, this fragrance enhancement structure has defects. The perfume sprayed on the napkins and then entering the high-temperature drying process easily causes the volatilization of the fragrance molecules, resulting in the fragrance of the finished napkins not being able to last for a long time. Therefore, it is necessary to improve it. Utility Model Content

[0004] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a napkin machine with an improved folding mechanism, in which perfume is sprayed during the inward folding process, and the perfume remains on the inner side of the finished napkin, thereby extending the volatilization cycle of the perfume and making the fragrance of the finished napkin more lasting.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a napkin machine with an improved folding mechanism, including a folding platform, the table top of the folding platform is sequentially provided with an upper supporting roller, an inner folding device, a first pressure roller group, a tensioning tube and a second pressure roller group, wherein the inner folding device includes a movable seat which can be moved laterally, and an inner folding fin is provided on the top of the movable seat; an extension seat is provided on the front side of the movable seat, and the extension seat is provided with a pre-folding roller group, the pre-folding roller group includes two vertically arranged pre-folding roller units, and the rolling fitting gap between the two pre-folding roller units is aligned with the apex of the inner folding fin, a perfume nozzle is provided between the pre-folding roller group and the inner folding fin, and the perfume nozzle is connected to the perfume supply device, the surface of the tensioning tube is smoothly arranged, and the interior thereof is hollowed out to form an oil cavity, and the interior of the oil cavity is filled with oil as a heat transfer medium; a heating pipe is provided inside the oil cavity, and the heating pipe is connected to a driving device.

[0006] In a further technical solution, the folding platform is provided with an offset adjustment base, the top of the offset adjustment base is provided with a T-slot, the T-slot is extended along the width direction of the folding platform, and a movable nut is provided inside the T-slot; a tensioning seat is provided on the top of the offset adjustment base, the tensioning tube is arranged on the top of the tensioning seat, the tensioning seat is equipped with a locking screw, and the locking screw is threadedly connected to the movable nut.

[0007] In a further technical solution, a high temperature resistant sealing plug is provided at the bottom of the oil chamber.

[0008] In a further technical solution, the heating tube is a titanium electric heating tube; the working temperature of the oil inside the oil cavity is 150-250 degrees Celsius.

[0009] In a further technical solution, the unfolded shape of the inner folding fin is an equilateral triangle, the two sides of the inner folding fin are bent downward with the center line as the boundary, and the bottom edge of the inner folding fin is welded to the movable seat; the protruding height of the inner folding fin is 20cm-40cm, and the bending angle of the inner folding fin is 90 degrees-130 degrees.

[0010] In a further technical solution, the internal folding device also includes two side panels, which are respectively fixed on both sides of the folding platform, and a transverse guide rod is provided between the two side plates. The movable seat is slidably connected to the transverse guide rod, and the bottom surface of the movable seat is slidably matched with the surface of the folding platform; a transverse adjustment drive cylinder is provided on one side of the folding platform, and the transverse adjustment drive cylinder has a piston rod, which is connected to the movable seat.

[0011] In a further technical solution, two inner roller frames are provided on the inner side of the side plate, and two folding guide rollers are rotatably mounted between the two inner roller frames. The two folding guide rollers are respectively located on the front side of the inner folding fins and are arranged at intervals up and down.

[0012] In a further technical solution, a sliding bearing is provided on an inner roller frame close to the transverse adjustment drive cylinder, and the piston rod is movably inserted into the sliding bearing.

[0013] In a further technical solution, the first pressing roller group and the second pressing roller group respectively include a power pressing roller group with the same structure, the power pressing roller group includes two vertically arranged pressing roller units, the pressing roller units are rotatably installed on the folding platform, and the bottom of the pressing roller unit is equipped with a synchronous gear. The synchronous gears of the two pressing roller units in the same power pressing roller group are meshed with each other, and any one of the pressing roller units is connected to a driving motor, and the roller surface speeds of the first pressing roller group and the second pressing roller group are the same.

[0014] In a further technical solution, the roller surfaces of the first roller group and the second roller group are respectively provided with elastic roller surface layer structures, and the stiffness coefficient of the roller surface layer structure of the first roller group is smaller than that of the roller surface layer structure of the second roller group.

[0015] After adopting the above structure, the utility model has the following advantages compared with the prior art: the utility model provides a napkin machine with an improved folding mechanism, a perfume nozzle is arranged on the rear side of the inner folding fin plate, and the folded inner side of the napkin paper is sprayed with perfume, so that the perfume molecules remain on the inner side of the finished napkin paper, the volatilization period of the perfume molecules is prolonged, and the fragrance of the finished napkin paper is more durable; the napkin paper is turned inward by the laterally adjustable inner folding fin plate, and under the traction of the power pressing roller group, the flat napkin paper passes through the inner folding fin plate, and under the top action of the apex of the inner folding fin plate, the two sides of the napkin paper slide and cling to the two side oblique edges of the inner folding fin plate respectively, and the apex of the inner folding fin plate is used as the boundary for rapid inward folding, and the processing efficiency is high, which meets the production requirements of the high-speed napkin machine; a heating structure is arranged inside the tensioning tube, and the tension of the napkin paper section between the first pressing roller group and the second pressing roller group is ensured, and the napkin paper can also be quickly heated and dried to avoid the formation of ink paste due to perfume spraying. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Figure 1 It is a structural schematic diagram of the test angle of the utility model.

[0018] Figure 2 It is a schematic diagram of the structure of the utility model from a top view angle.

[0019] Figure 3 It is a structural schematic diagram of the tensioning tube in the utility model. DETAILED DESCRIPTION

[0020] The following are only preferred embodiments of the present invention, and do not limit the protection scope of the present invention.

[0021] like Figures 1 to 3 A napkin machine with an improved folding mechanism comprises a folding platform 1, the table surface of the folding platform 1 is provided with an upper roller 2, an inner folding device 3, a first pressing roller group 4, a tensioning tube 5 and a second pressing roller group 6 in sequence, wherein the inner folding device 3 comprises a movable seat 333 which can be moved laterally, and an inner folding fin 33 is provided on the top of the movable seat 333; an extension seat 34 is provided on the front side of the movable seat 333, and a pre-folding roller group 35 is provided on the extension seat 34, the pre-folding roller group 35 comprises two vertically arranged pre-folding roller units, and the rolling fit gap between the two pre-folding roller units is aligned with the apex of the inner folding fin 33, a perfume spray head 341 is provided between the pre-folding roller group 35 and the inner folding fin 33, and the perfume spray head is connected to a perfume supply device, the surface of the tensioning tube 5 is smoothly arranged, and the inside thereof is hollowed out to form an oil cavity 50, and the inside of the oil cavity 50 is filled with oil as a heat transfer medium; a heating pipe 501 is provided inside the oil cavity 50, and the heating pipe 501 is connected to a driving device.

[0022] This embodiment provides a folding mechanism with a perfume adding function, which is particularly suitable for high-speed napkin machines. A perfume nozzle 341 is set on the rear side of the inner folding fin 33 to spray perfume on the folded inner side of the napkin, so that perfume molecules remain on the inner side of the finished napkin, extending the volatilization period of the perfume molecules and making the fragrance of the finished napkin more lasting.

[0023] A heating structure is arranged inside the tensioning tube to ensure the tension of the napkin paper segment between the first pressing roller group 4 and the second pressing roller group 6, and to heat and dry the napkin paper quickly to avoid ink sticking due to perfume spraying.

[0024] Specifically, the folding platform 1 is provided with an offset adjustment base 51, a T-slot 510 is provided on the top of the offset adjustment base 51, the T-slot 510 is extended along the width direction of the folding platform 1, and a movable nut 522 is provided inside the T-slot 510; a tensioning seat 52 is provided on the top of the offset adjustment base 51, a tensioning tube 5 is provided on the top of the tensioning seat 52, and the tensioning seat 52 is equipped with a locking screw 521, which is threadedly connected to the movable nut 522. A high-temperature resistant sealing plug 502 is provided at the bottom of the oil chamber 50. The heating tube 501 is a titanium electric heating tube; the working temperature of the oil inside the oil chamber 50 is 220 degrees Celsius.

[0025] Specifically, the unfolded shape of the inner folding fin 33 is an equilateral triangle, and the two sides of the inner folding fin 33 are bent downward with the middle line as the boundary, and the bottom edge of the inner folding fin 33 is welded to the movable seat 333; the protruding height of the inner folding fin 33 is 20cm-40cm, and the bending angle of the inner folding fin 33 is 120 degrees. The inner folding device 3 also includes two side panels 30, which are respectively fixed to the two sides of the folding platform 1, and a transverse guide rod 301 is provided between the two side panels 30. The movable seat 333 is slidably connected to the transverse guide rod 301, and the bottom surface of the movable seat 333 is slidably matched with the surface of the folding platform 1; a transverse adjustment drive cylinder 331 is provided on one side of the folding platform 1, and the transverse adjustment drive cylinder 331 has a piston rod 3310, and the piston rod 3310 is connected to the movable seat 333. Two inner roller frames 31 are also provided on the inner side of the side plate 30, and two folding guide rollers 32 are rotatably mounted between the two inner roller frames 31. The two folding guide rollers 32 are respectively located at the front side of the inner folding fin 33 and are arranged at intervals up and down. One of the inner roller frames 31 close to the lateral adjustment drive cylinder 331 is provided with a sliding bearing 332, and the piston rod 3310 is movably inserted into the sliding bearing 332.

[0026] The napkins are folded inwardly by the laterally adjustable inner folding fin 33. Under the traction of the powered pressing roller group, the flat napkin roll 9 passes through the inner folding fin 33. Under the abutment of the apex of the inner folding fin 33, the two sides of the napkin roll 9 slide closely to the two side oblique edges of the inner folding fin 33, and are quickly folded inwardly with the apex as the boundary. The processing efficiency is high and meets the production requirements of high-speed napkin machines.

[0027] Specifically, the first pressing roller group 4 and the second pressing roller group 6 respectively include a power pressing roller group with the same structure, the power pressing roller group includes two vertically arranged pressing roller units, the pressing roller units are rotatably installed on the folding platform 1, and the bottom of the pressing roller unit is equipped with a synchronous gear 71. The synchronous gears 71 of the two pressing roller units in the same power pressing roller group are meshed with each other, and any one of the pressing roller units is connected to a driving motor 7. The roller surface speeds of the first pressing roller group 4 and the second pressing roller group 6 are the same; the roller surfaces of the first pressing roller group 4 and the second pressing roller group 6 are respectively provided with elastic rolling surface layer structures, and the stiffness coefficient of the rolling surface layer structure of the first pressing roller group 4 is smaller than that of the rolling surface layer structure of the second pressing roller group 6.

[0028] The stiffness coefficients of the rolled surface layer structures of the first pressing roller group 4 and the second pressing roller group 6 of this embodiment are different, and the napkin roll 9 can be pressed once, heated and dried, and pressed twice in sequence. The folding pressing degree of the secondary pressing is higher than that of the primary pressing, which can further improve the folding quality of the napkin roll 9, and has a good preparation state for the subsequent cutting and stacking of the finished napkins, reducing the flanging of the finished napkins caused by cutting and stacking, and further improving the production quality of the product.

[0029] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The contents of this specification should not be understood as limiting the present invention.

Claims

1. A napkin machine with an improved folding mechanism, comprising a folding platform (1), characterized in that: The table surface of the folding platform (1) is provided with an upper roller (2), an inner folding device (3), a first pressing roller group (4), a tensioning tube (5) and a second pressing roller group (6) in sequence. The inner folding device (3) comprises a movable seat (333) which can be moved laterally, and an inner folding fin (33) is arranged on the top of the movable seat (333); an extension seat (34) is arranged on the front side of the movable seat (333), and the extension seat (34) is provided with a pre-folding roller group (35), and the pre-folding roller group (35) comprises two vertically arranged pre-folding roller units, and the rolling fit gap between the two pre-folding roller units is aligned with the top of the inner folding fin (33); a perfume spray head (341) is arranged between the pre-folding roller group (35) and the inner folding fin (33), and the perfume spray head is connected to a perfume supply device. The surface of the tensioning tube (5) is smooth, and the inside thereof is hollowed out to form an oil chamber (50). The inside of the oil chamber (50) is filled with oil as a heat-conducting medium. A heating tube (501) is provided inside the oil chamber (50), and the heating tube (501) is connected to a driving device.

2. A napkin machine with an improved folding mechanism according to claim 1, characterized in that: The folding platform (1) is provided with an offset adjustment base (51), the top of the offset adjustment base (51) is provided with a T-slot (510), the T-slot (510) is extended along the width direction of the folding platform (1), and a movable nut (522) is provided inside the T-slot (510); the top of the offset adjustment base (51) is provided with a tensioning seat (52), the tensioning tube (5) is arranged on the top of the tensioning seat (52), and the tensioning seat (52) is equipped with a locking screw (521), and the locking screw (521) is threadedly connected to the movable nut (522).

3. A napkin machine with an improved folding mechanism according to claim 2, characterized in that: A high temperature resistant sealing plug (502) is provided at the bottom of the oil chamber (50).

4. A napkin machine with an improved folding mechanism according to claim 3, characterized in that: The heating tube (501) is a titanium electric heating tube; the working temperature of the oil inside the oil cavity (50) is 150-250 degrees Celsius.

5. The napkin machine with improved folding mechanism according to claim 1, characterized in that: The unfolded shape of the inner folding fin (33) is an equilateral triangle, and the two sides of the inner folding fin (33) are bent downward with the center line as the boundary, and the bottom edge of the inner folding fin (33) is welded to the movable seat (333); the protruding height of the inner folding fin (33) is 20 cm-40 cm, and the bending angle of the inner folding fin (33) is 90 degrees-130 degrees.

6. A napkin machine with an improved folding mechanism according to claim 5, characterized in that: The inner folding device (3) further comprises two side plates (30), the two side plates (30) being respectively fixed on the two sides of the folding platform (1), a transverse guide rod (301) being provided between the two side plates (30), the movable seat (333) being slidably connected to the transverse guide rod (301), and the bottom surface of the movable seat (333) being slidably matched with the surface of the folding platform (1); a transverse adjustment drive cylinder (331) is provided on one side of the folding platform (1), the transverse adjustment drive cylinder (331) having a piston rod (3310), and the piston rod (3310) being connected to the movable seat (333).

7. A napkin machine with an improved folding mechanism according to claim 6, characterized in that: Two inner roller frames (31) are also provided on the inner side of the side plate (30), and two folding guide rollers (32) are rotatably mounted between the two inner roller frames (31). The two folding guide rollers (32) are respectively located on the front side of the inner folding fin plate (33) and are arranged at intervals up and down.

8. The napkin machine with improved folding mechanism according to claim 7, characterized in that: A sliding bearing (332) is provided on an inner roller frame (31) close to the transverse shift adjustment drive cylinder (331), and the piston rod (3310) is movably plugged into the sliding bearing (332).

9. The napkin machine with improved folding mechanism according to claim 1, characterized in that: The first pressing roller group (4) and the second pressing roller group (6) respectively include a power pressing roller group with the same structure, the power pressing roller group includes two vertically arranged pressing roller units, the pressing roller units are rotatably mounted on the folding platform (1), the bottom of the pressing roller unit is equipped with a synchronous gear (71), the synchronous gears (71) of the two pressing roller units in the same power pressing roller group are meshed with each other, and any one of the pressing roller units is connected to a driving motor (7), The roller surface speeds of the first pressing roller group (4) and the second pressing roller group (6) are the same.

10. A napkin machine with an improved folding mechanism according to claim 9, characterized in that: The roller surfaces of the first pressing roller group (4) and the second pressing roller group (6) are respectively provided with elastic pressing surface layer structures, and the stiffness coefficient of the pressing surface layer structure of the first pressing roller group (4) is smaller than that of the pressing surface layer structure of the second pressing roller group (6).

Images