Drying mechanism of gravure press for wrapping film

Abstract

The utility model relates to the technical field of intaglio printing, and discloses a winding film intaglio printing machine drying mechanism which comprises a machine body, a base is installed at the bottom end of the machine body, the left side of the base is fixedly connected with a first fixing frame, and the right side of the base is fixedly connected with a second fixing frame. During use, a first servo motor is started, a printed wrapping film enters a heating bin through a rolling shaft, a film inlet and a first passing groove, a second servo motor is started and drives a fan, air passes through a heater to form hot air, then the hot air enters the heating bin through an air inlet, and the hot air enters the heating bin through a second passing groove. The assembly consistent with the top end of the heating bin is arranged at the bottom end of the heating bin, so that heating of the bottom end of the wrapping film is achieved, double-face drying of the wrapping film is achieved, and deformation of the wrapping film caused by single-face drying is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gravure printing, in particular to a drying mechanism of a gravure printing machine for a stretch film. Background Art

[0002] The gravure printing machine adopts the direct rotary printing method. The printing plate is made directly on the plate cylinder, and the ink is supplied by ink immersion or inkjet. There is no ink leveling mechanism. Due to the thick ink layer, a drying mechanism is required when using highly volatile quick-drying ink.

[0003] Stretch film is made of linear low-density polyethylene as the main raw material and is produced using a three-layer co-extrusion cast film process. It has the characteristics of high transparency, high longitudinal elongation, high yield point, high transverse tear strength, and good puncture resistance. It is widely used for bundling and packaging various products. After gravure printing, stretch film is usually dried with hot air due to its characteristics. The hot air dryers on the market now usually do not have the function of double-sided drying of stretch film. Drying stretch film on one side may cause uneven drying of the stretch film, which may lead to deformation or even damage of the stretch film.

[0004] Now, a drying mechanism of a gravure printing machine for stretch film is proposed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a drying mechanism for a gravure printing machine of a stretch film, so as to solve the problem in the above background technology that the stretch film cannot be dried on both sides.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a drying mechanism of a gravure printing machine for a stretch film, comprising a body, a base being installed at the bottom end of the body, a first fixing frame being fixedly connected to the left side of the base, a second fixing frame being fixedly connected to the right side of the base, a film inlet being provided on the left side of the body, a film outlet being provided on the right side of the base, a first servo motor being installed at the bottom end of the first fixing frame, a first rotating shaft being installed at the bottom side of the front end of the first fixing frame, a second rotating shaft being installed inside the first fixing frame, a belt being sleeved between the first rotating shaft and the second rotating shaft, a roller being sleeved on the outer side of the second rotating shaft, and a heating component for double-sided drying being provided inside the body;

[0007] The double-sided drying heating component includes a heating chamber, which is arranged inside the machine body, a first passing slot is arranged on the left side of the heating chamber, a second passing slot is arranged on the right side of the heating chamber, two groups of air inlets are arranged on the right side of the heating chamber, two groups of second servo motors are installed at the top and bottom ends of the heating chamber, fans are installed on the right side of the two groups of second servo motors, and a heater is installed on the right side of the fan.

[0008] Preferably, the output end of the second servo motor is connected to the fan, and the body is communicated with the interior of the heating chamber.

[0009] Preferably, there is a distance between the fan and the heater, and the two groups of the second servo motors are symmetrically distributed.

[0010] Preferably, the output end of the first servo motor is connected to the first rotating shaft, the height of the film inlet is consistent with the first passing slot, and the height of the film outlet is consistent with the second passing slot.

[0011] Preferably, two sets of air suction ports are provided at the top and bottom ends of the heating chamber, two sets of exhaust fans are installed at the top and bottom ends of the heating chamber, a filter shell is installed on the right side of the exhaust fan, a connecting pipe is installed between the exhaust fan and the filter shell, and a filter element is installed inside the filter shell.

[0012] Preferably, the exhaust fan, filter housing, filter element, and connecting pipe are internally connected, the interior of the filter element is made of activated carbon material, and the filter element can be pulled out from the filter housing.

[0013] Preferably, a cooling barrel is movably connected inside the second fixing frame, a liquid inlet is provided at the front end of the cooling barrel, a liquid outlet is provided at the rear end of the cooling barrel, and a cooling liquid cavity is provided inside the cooling barrel.

[0014] Preferably, the liquid inlet, the cooling barrel and the liquid outlet are connected, and the cooling barrel can roll on the second fixed frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: the drying mechanism of the gravure printing machine for the stretch film not only realizes the double-sided drying of the stretch film, but also realizes the purification and circulation of the internal air, and also realizes the cooling of the stretch film after drying;

[0016] (1) A heating chamber, a first passing slot, a second passing slot, a second servo motor, a fan, a heater and an air inlet are provided. When in use, the first servo motor is started, and the printed wrapping film enters the heating chamber through the roller, the film inlet and the first passing slot. The second servo motor is started, and the second servo motor drives the fan. The wind passes through the heater to form hot air, and then enters the heating chamber through the air inlet, thereby heating the wrapping film and accelerating its drying speed. By providing the same component as the top at the bottom of the heating chamber, the bottom of the wrapping film is heated, and double-sided drying of the wrapping film is achieved, thereby avoiding deformation of the wrapping film caused by single-sided drying.

[0017] (2) By providing an air suction port, an exhaust fan, a filter housing, a filter element and a connecting pipe, while hot air passes through the printed stretch film to dry it, the pungent odor carried by the printing and the pigment dust formed by drying on the stretch film will diffuse into the air through the film inlet and outlet, which is harmful to the health of the workers. By providing an exhaust fan, the hot air enters the exhaust fan through the air suction port, and the exhaust fan is connected to the filter housing through a connecting pipe, thereby realizing the filtration of the hot air by the filter element. The other side of the filter housing is close to the second servo motor, thereby realizing the purification and circulation of the internal air.

[0018] (3) By providing a cooling barrel, a liquid inlet, a liquid outlet and a cooling liquid cavity, the temperature of the stretch film after drying in the heating chamber is too high and cannot quickly reach the storage standard. By arranging a cooling barrel on the second fixed frame, the coolant enters the cooling liquid cavity through the liquid inlet and is then discharged through the liquid outlet, thereby cooling the cooling barrel. The stretch film passes through the cooling barrel, and then the stretch film is cooled after drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0020] Figure 2 This is a side structural diagram of the present utility model;

[0021] Figure 3 This is a schematic diagram of the top view of the structure of the utility model;

[0022] Figure 4 For the utility model Figure 1 Schematic diagram of the local cross-section structure at point A in the middle;

[0023] Figure 5 This is a schematic diagram of the side sectional structure of the heating bin of the present invention.

[0024] In the figure: 1. Machine body; 2. Base; 3. First fixing frame; 4. Second fixing frame; 5. Film inlet; 6. Film outlet; 7. First servo motor; 8. First rotating shaft; 9. Second rotating shaft; 10. Belt; 11. Roller; 12. Heating chamber; 13. First passing slot; 14. Second passing slot; 15. Second servo motor; 16. Fan; 17. Heater; 18. Air inlet; 19. Air suction port; 20. Exhaust fan; 21. Filter housing; 22. Filter element; 23. Connecting pipe; 24. Cooling barrel; 25. Liquid inlet; 26. Liquid outlet; 27. Cooling liquid chamber. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 creative efforts are within the scope of protection of the present invention.

[0026] Example 1: Please refer to Figure 1-5 , a drying mechanism of a gravure printing machine for a stretch film, comprising a body 1, a base 2 is installed at the bottom end of the body 1, a first fixing frame 3 is fixedly connected to the left side of the base 2, a second fixing frame 4 is fixedly connected to the right side of the base 2, a film inlet 5 is provided on the left side of the body 1, a film outlet 6 is provided on the right side of the base 2, a first servo motor 7 is installed at the bottom end of the first fixing frame 3, a first rotating shaft 8 is installed at the bottom side of the front end of the first fixing frame 3, a second rotating shaft 9 is installed inside the first fixing frame 3, a belt 10 is sleeved between the first rotating shaft 8 and the second rotating shaft 9, a roller 11 is sleeved on the outer side of the second rotating shaft 9, and a heating component for double-sided drying is provided inside the body 1;

[0027] See also Figure 1-5 A drying mechanism of a gravure printing machine for stretch film further includes a double-sided drying heating component, which includes a heating chamber 12, which is arranged inside a machine body 1, a first through slot 13 being provided on the left side of the heating chamber 12, a second through slot 14 being provided on the right side of the heating chamber 12, two sets of air inlets 18 being provided on the right side of the heating chamber 12, two sets of second servo motors 15 being installed at the top and bottom ends of the heating chamber 12, fans 16 being installed on the right side of the two sets of second servo motors 15, and a heater 17 being installed on the right side of the fan 16;

[0028] The output end of the second servo motor 15 is connected to the fan 16, the body 1 and the interior of the heating chamber 12 are connected, there is a distance between the fan 16 and the heater 17, the two groups of second servo motors 15 are symmetrically distributed, the output end of the first servo motor 7 is connected to the first rotating shaft 8, the height of the film inlet 5 is consistent with the first through slot 13, and the height of the film outlet 6 is consistent with the second through slot 14;

[0029] Specifically, if Figure 1 、 Figure 2 、 Figure 3 and Figure 5As shown, when in use, the first servo motor 7 is started, and the stretch film after printing enters the heating chamber 12 through the roller 11, the film inlet 5, and the first through slot 13, and the second servo motor 15 is started. The second servo motor 15 drives the fan 16, and the wind passes through the heater 17 to form hot air, and then enters the heating chamber 12 through the air inlet 18, thereby heating the stretch film and accelerating its drying speed. By arranging the same component as the top at the bottom of the heating chamber 12, the bottom end of the stretch film is heated, and then the double-sided drying of the stretch film is achieved, thereby avoiding the deformation of the stretch film caused by single-sided drying.

[0030] Example 2: Two sets of air suction ports 19 are provided at the top and bottom ends of the heating bin 12. Two sets of exhaust fans 20 are installed at the top and bottom ends of the heating bin 12. A filter housing 21 is installed on the right side of the exhaust fan 20. A connecting pipe 23 is installed between the exhaust fan 20 and the filter housing 21. A filter element 22 is installed inside the filter housing 21. The exhaust fan 20, the filter housing 21, the filter element 22, and the connecting pipe 23 are internally connected. The interior of the filter element 22 is made of activated carbon material, and the filter element 22 can be pulled out from the filter housing 21.

[0031] Specifically, if Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, while the hot air passes through the printed stretch film to dry it, the pungent smell carried by the printing and some pigment dust formed by drying on the stretch film will diffuse into the air through the film inlet 5 and the film outlet 6, which is harmful to the health of the workers. By setting up the exhaust fan 20, the hot air enters the exhaust fan 20 through the air suction port 19, and the exhaust fan 20 is connected to the filter housing 21 through the connecting pipe 23, so that the filter element 22 can filter the hot air. The other side of the filter housing 21 is close to the second servo motor 15, thereby realizing the purification and circulation of the internal air.

[0032] Embodiment 3: A cooling barrel 24 is movably connected to the interior of the second fixed frame 4. A liquid inlet 25 is provided at the front end of the cooling barrel 24, and a liquid outlet 26 is provided at the rear end of the cooling barrel 24. A cooling liquid cavity 27 is provided inside the cooling barrel 24. The liquid inlet 25, the cooling barrel 24, and the liquid outlet 26 are connected. The cooling barrel 24 can roll on the second fixed frame 4;

[0033] Specifically, if Figure 1 and Figure 3 As shown, the temperature of the stretch film is too high after being dried in the heating chamber 12 and cannot quickly reach the storage standard. By arranging a cooling barrel 24 on the second fixed frame 4, the coolant enters the cooling liquid chamber 27 through the liquid inlet 25 and is then discharged through the liquid outlet 26, thereby cooling the cooling barrel 24. The stretch film passes through the cooling barrel 24, thereby achieving cooling after drying.

[0034] Working principle: When the present invention is in use, first, the first servo motor 7 is started, and the stretch film after printing passes through the roller 11, the film inlet 5, and the first through slot 13 into the heating chamber 12, and the second servo motor 15 is started. The second servo motor 15 drives the fan 16, and the wind passes through the heater 17 to form hot air, and then enters the heating chamber 12 through the air inlet 18, thereby heating the stretch film and accelerating its drying speed. By arranging the same component as the top at the bottom of the heating chamber 12, the bottom of the stretch film is heated, and then the double-sided drying of the stretch film is achieved, avoiding the deformation of the stretch film caused by single-sided drying. Secondly, while the hot air passes through the printed stretch film to dry it, the pungent odor carried by the printing and the partial color formed by drying on the stretch film are removed. Material dust will spread into the air through the film inlet 5 and the film outlet 6, which is harmful to the health of the staff. By setting up an exhaust fan 20, hot air enters the exhaust fan 20 through the air inlet 19, and the exhaust fan 20 is connected to the filter housing 21 through a connecting pipe 23, so that the filter element 22 can filter the hot air. The other side of the filter housing 21 is close to the second servo motor 15, thereby realizing the purification and circulation of the internal air. After the stretch film is dried in the heating bin 12, the temperature is too high and cannot quickly reach the storage standard. By setting a cooling barrel 24 on the second fixed frame 4, the coolant enters the cooling liquid chamber 27 through the liquid inlet 25 and is discharged through the liquid outlet 26, thereby realizing the cooling of the cooling barrel 24. The stretch film passes through the cooling barrel 24, thereby realizing the cooling of the stretch film after drying.

[0035] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A drying mechanism for a gravure printing machine for a stretch film, comprising a body (1), characterized in that: A base (2) is installed at the bottom end of the body (1), a first fixed frame (3) is fixedly connected to the left side of the base (2), a second fixed frame (4) is fixedly connected to the right side of the base (2), a film inlet (5) is provided on the left side of the body (1), a film outlet (6) is provided on the right side of the base (2), a first servo motor (7) is installed at the bottom end of the first fixed frame (3), a first rotating shaft (8) is installed at the bottom side of the front end of the first fixed frame (3), a second rotating shaft (9) is installed inside the first fixed frame (3), a belt (10) is sleeved between the first rotating shaft (8) and the second rotating shaft (9), a roller (11) is sleeved on the outer side of the second rotating shaft (9), and a double-sided drying heating component is provided inside the body (1); The double-sided drying heating component includes a heating chamber (12), the heating chamber (12) is arranged inside the machine body (1), a first through slot (13) is arranged on the left side of the heating chamber (12), a second through slot (14) is arranged on the right side of the heating chamber (12), two groups of air inlets (18) are arranged on the right side of the heating chamber (12), two groups of second servo motors (15) are installed at the top and bottom ends of the heating chamber (12), fans (16) are installed on the right side of the two groups of second servo motors (15), and a heater (17) is installed on the right side of the fan (16).

2. The drying mechanism of a gravure printing machine for a stretch film according to claim 1, characterized in that: The output end of the second servo motor (15) is connected to the fan (16), and the machine body (1) and the interior of the heating chamber (12) are connected.

3. The drying mechanism of a gravure printing machine for a stretch film according to claim 1, characterized in that: There is a distance between the fan (16) and the heater (17), and the two groups of the second servo motors (15) are symmetrically distributed.

4. The drying mechanism of a gravure printing machine for a stretch film according to claim 1, characterized in that: The output end of the first servo motor (7) is connected to the first rotating shaft (8), the height of the film inlet (5) is consistent with the first through slot (13), and the height of the film outlet (6) is consistent with the second through slot (14).

5. The drying mechanism of a gravure printing machine for a stretch film according to claim 1, characterized in that: Two groups of air suction ports (19) are provided at the top and bottom ends of the interior of the heating chamber (12), two groups of exhaust fans (20) are installed at the top and bottom ends of the heating chamber (12), a filter housing (21) is installed on the right side of the exhaust fans (20), a connecting pipe (23) is installed between the exhaust fans (20) and the filter housing (21), and a filter element (22) is installed inside the filter housing (21).

6. The drying mechanism of a gravure printing machine for a stretch film according to claim 5, characterized in that: The exhaust fan (20), the filter housing (21), the filter element (22), and the connecting pipe (23) are internally connected. The interior of the filter element (22) is made of activated carbon material. The filter element (22) can be extracted from the filter housing (21).

7. The drying mechanism of a gravure printing machine for a stretch film according to claim 1, characterized in that: A cooling barrel (24) is movably connected inside the second fixing frame (4), a liquid inlet (25) is provided at the front end of the cooling barrel (24), a liquid outlet (26) is provided at the rear end of the cooling barrel (24), and a cooling liquid cavity (27) is provided inside the cooling barrel (24).

8. The drying mechanism of a gravure printing machine for a stretch film according to claim 7, characterized in that: The liquid inlet (25), the cooling barrel (24), and the liquid outlet (26) are connected, and the cooling barrel (24) can roll on the second fixed frame (4).

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