PU coating and spraying equipment for fiber honeycomb paperboard

Abstract

The utility model discloses PU (polyurethane) coating and spraying equipment for a fiber honeycomb paperboard, and relates to the field of PU coating. Comprising an equipment base, a positioning groove is formed in the upper surface of the equipment base, a spraying mechanism is installed on the equipment base, the spraying mechanism comprises a second shell fixed in the positioning groove, a first shell is fixedly installed at the upper end of the second shell, and spray heads and curing lamps are fixedly installed in the first shell and the second shell correspondingly; and the nozzles in the first shell and the second shell are opposite to the curing lamps in position. According to the PU coating and spraying equipment for the fiber honeycomb paperboard, polyurethane on one side of a strip-shaped paperboard passes through the second shell after being dried, the spraying direction of the strip-shaped paperboard is changed under the action of the second guide roller and the third guide roller when the strip-shaped paperboard passes through the second shell, and the other side of the strip-shaped paperboard faces the spraying head; therefore, polyurethane is sprayed on the other face of the strip-shaped paperboard, polyurethane is sprayed on the two faces of the paperboard at the same time, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of PU coating, and particularly relates to a PU coating spraying device for fiber honeycomb paperboard. Background Art

[0002] PU, whose full name is Polyurethane and is called polyurethane in Chinese, is a polymer material formed by the polycondensation reaction of polyol and polyisocyanate. Due to the excellent properties of polyurethane, it is widely used in many fields such as textile, construction, aviation, ship, transportation, medicine, electronics, etc.

[0003] During the production process of fiberglass rolls, polyurethane needs to be sprayed on both sides of the fiber honeycomb paperboard. During the spraying process, a conveying device is used to drive the fiber honeycomb paperboard to pass under the nozzle. The fiber honeycomb paperboard passing under the nozzle will be sprayed with a layer of polyurethane. This spraying method can only spray one side each time and requires secondary spraying, reducing the production efficiency. Therefore, a PU coating spraying device for fiber honeycomb paperboard is proposed. Content of the Utility Model

[0004] The main purpose of the utility model is to provide a PU coating spraying device for fiber honeycomb paperboard, which can effectively solve the problems mentioned in the background art.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A PU coating spraying device for fiber honeycomb paperboard includes a device base. Support feet are fixedly installed at the four corners of the bottom of the device base. A positioning groove is opened on the upper surface of the device base. A spraying mechanism is installed on the device base. The spraying mechanism includes a second housing fixed in the positioning groove. A first housing is fixedly installed at the upper end of the second housing. Nozzles and curing lamps are fixedly installed in both the first housing and the second housing, and the positions of the nozzles and curing lamps in the first housing and the second housing are opposite. A strip-shaped paperboard is arranged between the first housing and the second housing, and the strip-shaped paperboard will pass through the second housing and the first housing in sequence.

[0007] Furthermore, the spraying mechanism further includes a first guide roller and a second guide roller movably installed at both ends of the second housing. A guide roller bracket is fixedly installed at one end of the second housing. A traction component is fixedly installed at the other end of the second housing. A third guide roller is movably installed on the guide roller bracket. Moving shafts are fixedly installed on the first guide roller, the second guide roller, and the third guide roller, and the moving shafts will cause the first guide roller, the second guide roller, and the third guide roller to rotate.

[0008] Furthermore, a connecting seat is provided between the first housing and the second housing, and the first housing is mounted above the second housing through the connecting seat. After the strip-shaped cardboard passes through the first housing and the second housing, polyurethane will be sprayed on it.

[0009] Furthermore, the first guide roller is movably mounted at one end of the second housing through a movable shaft, the second guide roller is movably mounted at the other end of the second housing through a movable shaft, the third guide roller is movably mounted on the guide roller bracket through a movable shaft, and the third guide roller is mounted at one end of the first housing through the guide roller bracket. The third guide roller serves to guide the strip-shaped cardboard.

[0010] Furthermore, the traction assembly includes a fixing frame fixed on the first housing. An activity hole is provided in the fixing frame. A driving roller and a driven roller are movably installed in the fixing frame. A driving motor is fixedly installed at one end of the fixing frame. A driving gear and a driven gear are provided at the other end of the fixing frame. The driving gear is fixed at one end of the driving roller, the driven gear is fixed at one end of the driven roller, and the driving gear is engaged with the driven gear, and the driven gear will drive the driven roller to rotate.

[0011] Furthermore, a coupling is provided at the output end of the driving motor, and the output end of the driving motor is connected to the driving roller through the coupling, and the driving motor will drive the driving roller to rotate.

[0012] Furthermore, bearings are provided in the activity hole, and the driving roller and the driven roller are both movably installed in the fixing frame through the bearings, and the driving roller and the driven roller will traction the strip-shaped cardboard.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] 1. The driving motor will drive the driving roller to rotate. After the driving roller rotates, it will drive the driving gear to rotate. After the driving gear rotates, it will drive the driven gear to rotate. After the driven gear rotates, it will drive the driven roller to rotate synchronously with the driving roller. After placing the strip-shaped cardboard between the driving roller and the driven roller, it will traction the strip-shaped cardboard through the first housing and the second housing to spray the strip-shaped cardboard.

[0015] 2. The polyurethane sprayed on the strip-shaped cardboard will be dried by the curing lamp to prevent the polyurethane from dripping. After the polyurethane on one side of the strip-shaped cardboard is dried, it will pass through the second housing. When the strip-shaped cardboard passes through the second housing, the spraying direction will be changed under the action of the second guide roller and the third guide roller, so that the other side of the strip-shaped cardboard faces the nozzle, thereby spraying polyurethane on the other side of the strip-shaped cardboard, and then spraying polyurethane on both sides of the cardboard at the same time, improving the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2 is a partial structural schematic diagram of the present utility model;

[0018] Figure 3 is a schematic diagram of the spraying mechanism of the present utility model;

[0019] Figure 4 is a schematic diagram of the traction mechanism of the present utility model.

[0020] In the figure: 1, equipment base; 2, support feet; 3, positioning groove; 4, strip cardboard; 5, spraying mechanism; 501, first housing; 502, second housing; 503, first guide roller; 504, movable shaft; 505, second guide roller; 506, guide roller bracket; 507, third guide roller; 508, nozzle; 509, curing lamp; 6, traction assembly; 601, drive motor; 602, driving roller; 603, driven roller; 604, driving gear; 605, driven gear; 606, movable hole; 607, fixing bracket. Specific embodiments

[0021] In order to make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0022] As Figure 1 shown, a PU coating and spraying device for fiber honeycomb cardboard includes an equipment base 1, support feet 2 are fixedly installed at the four corners of the bottom of the equipment base 1, a positioning groove 3 is opened on the upper surface of the equipment base 1, a spraying mechanism 5 is installed on the equipment base 1, the spraying mechanism 5 includes a second housing 502 fixed in the positioning groove 3, a first housing 501 is fixedly installed at the upper end of the second housing 502, nozzles 508 and curing lamps 509 are fixedly installed in both the first housing 501 and the second housing 502, and the positions of the nozzles 508 and the curing lamps 509 in the first housing 501 and the second housing 502 are opposite, and a strip cardboard 4 is arranged between the first housing 501 and the second housing 502.

[0023] As Figure 4 shown, the traction assembly 6 includes a fixing bracket 607 fixed on the first housing 501, a movable hole 606 is opened in the fixing bracket 607, a driving roller 602 and a driven roller 603 are movably installed in the fixing bracket 607, a drive motor 601 is fixedly installed at one end of the fixing bracket 607, a driving gear 604 and a driven gear 605 are arranged at the other end of the fixing bracket 607, the driving gear 604 is fixed on one end of the driving roller 602, the driven gear 605 is fixed on one end of the driven roller 603, and the driving gear 604 and the driven gear 605 are meshed together.

[0024] Specifically, after the driving motor 601 is started, it drives the driving roller 602 to rotate. After the driving roller 602 rotates, it drives the driving gear 604 to rotate. After the driving gear 604 rotates, it drives the driven gear 605 to rotate. After the driven gear 605 rotates, it drives the driven roller 603 to rotate synchronously with the driving roller 602. After the strip-shaped cardboard 4 is placed between the driving roller 602 and the driven roller 603, it will pull the strip-shaped cardboard 4 through the first housing 501 and the second housing 502.

[0025] As Figure 2 Figure 3 As shown, the spraying mechanism 5 further includes a first guide roller 503 and a second guide roller 505 movably installed at both ends of the second housing 502. A guide roller bracket 506 is fixedly installed at one end of the second housing 502, and a traction assembly 6 is fixedly installed at the other end of the second housing 502. A third guide roller 507 is movably installed on the guide roller bracket 506. Moving shafts 504 are fixedly installed on the first guide roller 503, the second guide roller 505, and the third guide roller 507.

[0026] Specifically, when the strip-shaped cardboard 4 passes through the first housing 501, the spray head 508 sprays polyurethane onto its surface. The polyurethane sprayed onto the strip-shaped cardboard 4 will be dried by the curing lamp 509 to prevent the polyurethane from dripping. After the polyurethane on one side of the strip-shaped cardboard 4 is dried, it will pass through the second housing 502. When the strip-shaped cardboard 4 passes through the second housing 502, the spraying direction will be changed under the action of the second guide roller 505 and the third guide roller 507, so that the other side of the strip-shaped cardboard 4 faces the spray head 508, thereby spraying polyurethane on the other side of the strip-shaped cardboard 4, and then spraying polyurethane on both sides of the cardboard at the same time, improving the production efficiency.

[0027] It should be noted that the present utility model is a PU coating spraying device for fiber honeycomb paperboard. During actual use, a strip-shaped paperboard 4 is placed between a driving roller 602 and a driven roller 603. After the strip-shaped paperboard 4 is placed between the driving roller 602 and the driven roller 603, the driving motor 601 can be started. Since a coupling is provided at the output end of the driving motor 601, the output end of the driving motor 601 is connected to the driving roller 602 through the coupling. A bearing is provided in the movable hole 606, and both the driving roller 602 and the driven roller 603 are movably installed in the fixing frame 607 through bearings. Therefore, after the driving motor 601 is started, it will drive the driving roller 602 to rotate. After the driving roller 602 rotates, it will drive the driving gear 604 to rotate. After the driving gear 604 rotates, it will drive the driven gear 605 to rotate. After the driven gear 605 rotates, it will drive the driven roller 603 to rotate synchronously with the driving roller 602, pulling the strip-shaped paperboard 4 through the first housing 501 and the second housing 502. At the same time, since spray nozzles 508 and curing lamps 509 are fixedly installed in both the first housing 501 and the second housing 502, and the positions of the spray nozzles 508 and the curing lamps 509 in the first housing 501 and the second housing 502 are opposite, when the strip-shaped paperboard 4 passes through the first housing 501, the spray nozzles 508 will spray polyurethane onto its surface. The polyurethane sprayed onto the strip-shaped paperboard 4 will be dried by the curing lamps 509. After the polyurethane on one side of the strip-shaped paperboard 4 is dried, it will pass through the second housing 502. When the strip-shaped paperboard 4 passes through the second housing 502, the spraying direction will be changed under the action of the second guide roller 505 and the third guide roller 507, so as to spray polyurethane on the other side of the strip-shaped paperboard 4, and thus polyurethane is sprayed on both sides of the paperboard at the same time, improving the production efficiency.

[0028] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A PU coating spraying device for fiber honeycomb paperboard, comprising a device base (1), wherein support legs (2) are fixedly installed at the four corners of the bottom of the device base (1), and a positioning groove (3) is provided on the upper surface of the device base (1), characterized in that: A spraying mechanism (5) is installed on the equipment base (1), and the spraying mechanism (5) comprises a second shell (502) fixed in the positioning groove (3), a first shell (501) is fixedly installed on the upper end of the second shell (502), a spray head (508) and a curing lamp (509) are fixedly installed in the first shell (501) and the second shell (502), and the spray head (508) and the curing lamp (509) in the first shell (501) and the second shell (502) are in opposite positions, and a strip of cardboard (4) is provided between the first shell (501) and the second shell (502).

2. The PU coating spraying equipment for fiber honeycomb paperboard according to claim 1, characterized in that: The spraying mechanism (5) further comprises a first guide roller (503) and a second guide roller (505) movably mounted at both ends of the second shell (502); a guide roller bracket (506) is fixedly mounted on one end of the second shell (502); a traction assembly (6) is fixedly mounted on the other end of the second shell (502); a third guide roller (507) is movably mounted on the guide roller bracket (506); and movable shafts (504) are fixedly mounted on the first guide roller (503), the second guide roller (505) and the third guide roller (507).

3. The PU coating spraying equipment for fiber honeycomb paperboard according to claim 2, characterized in that: A connecting seat is provided between the first shell (501) and the second shell (502), and the first shell (501) is installed above the second shell (502) via the connecting seat.

4. The PU coating spraying equipment for fiber honeycomb paperboard according to claim 3, characterized in that: The first guide roller (503) is movably mounted on one end of the second shell (502) via a movable shaft (504), the second guide roller (505) is movably mounted on the other end of the second shell (502) via a movable shaft (504), the third guide roller (507) is movably mounted on a guide roller bracket (506) via a movable shaft (504), and the third guide roller (507) is mounted on one end of the first shell (501) via the guide roller bracket (506).

5. The PU coating spraying equipment for fiber honeycomb paperboard according to claim 4, characterized in that: The traction assembly (6) comprises a fixing frame (607) fixed on the first shell (501), a movable hole (606) is opened in the fixing frame (607), a driving roller (602) and a driven roller (603) are movably installed in the fixing frame (607), a driving motor (601) is fixedly installed at one end of the fixing frame (607), and a driving gear (604) and a driven gear (605) are provided at the other end of the fixing frame (607), the driving gear (604) is fixed on one end of the driving roller (602), and the driven gear (605) is fixed on one end of the driven roller (603), and the driving gear (604) and the driven gear (605) are meshed together.

6. The PU coating spraying equipment for fiber honeycomb paperboard according to claim 5, characterized in that: The output end of the driving motor (601) is provided with a coupling, and the output end of the driving motor (601) is connected to the driving roller (602) through the coupling.

7. The PU coating spraying equipment for fiber honeycomb paperboard according to claim 6, characterized in that: A bearing is provided in the movable hole (606), and the active roller (602) and the driven roller (603) are both movably mounted in the fixed frame (607) via the bearing.

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