CN107983578A - A kind of coating apparatus - Google Patents

Abstract

The invention belongs to a technology for coating liquid or other fluids on the surface of objects, and specifically relates to a coating device; including a frame, on which a feeding unit, a bonding unit, a drying unit and a discharging unit are sequentially arranged; The smoothing part includes steel balls, compression springs and cams for hitting the steel balls intermittently; the bonding part includes upper rollers for rolling the base cloth and lower rollers for supporting the transfer paper; the cleaning part includes rotating connections with the frame The rotating drum is connected with a cleaning piece for cleaning the surface of the upper roller; the transmission mechanism includes a motor, an upper roller gear, a lower roller gear, a drum gear, a driving bevel gear and a driven bevel gear. This solution can effectively prevent the base fabric from wrinkling during the coating process.

Description

A kind of coating equipment

technical field

The invention belongs to a technology for coating liquid or other fluids on the surface of objects, and in particular relates to a coating device.

Background technique

Coating, also known as coating, refers to the finishing and processing technology of uniformly coating one or more layers of polymer compounds on the surface of the fabric, and forming one or more layers of thin films on the surface of the fabric through bonding. Its purpose is to improve the feel, appearance and style of the fabric, and add many new functions to the fabric, such as windproof, waterproof, moisture-permeable, down-proof, flame-retardant, shading and other functions.

The traditional coating method is mostly direct coating, that is, the coating agent is diluted with solvent or water according to the required concentration, and the necessary medicament and colorant are added to make a coating slurry, which is evenly coated on the base cloth with a spreader , and then dried and baked to evaporate the solvent or water to form a tough film on the base cloth. When this method is in use, in order to ensure that the coating slurry is evenly coated on the base cloth, it is often necessary to straighten the two ends of the base cloth with tension rollers.

However, with the development of textile technology, this method is not suitable for some emerging fabric materials, especially some fabrics that are light, loose, and sensitive to tension, such as leno, plush, knitted fabrics, etc. Because the tension can easily damage or deform the fabric. In order to solve this problem, a transfer film forming method has been newly developed; it first coats the coating slurry on the transfer paper or metal belt pretreated by silicone, and then laminates the base cloth and the transfer paper face to face and rolls them. The pressing roller is transferred to the base fabric, and after cooling, the transfer paper and the processed fabric are separated.

However, there are certain problems in the existing transfer film-forming method: when the calender roller is rolling the base fabric and the transfer paper, the base fabric is prone to wrinkle, and one of the reasons for this phenomenon is that the calender roller The surface of the roller is not smooth enough, especially when dealing with some easy-to-depilate fabrics, the lint on the fabric is easy to stick to the surface of the calender roller when it is crushed by the calender roller, so that the accumulation increases, and the calender roller becomes larger. Surface roughness, wrinkling phenomenon is more obvious.

Contents of the invention

The object of the present invention is to provide a coating device, which can effectively prevent the base cloth from wrinkling during the coating process.

In order to achieve the above object, the present invention provides the following technical solutions: a coating device, including a frame, on which a feeding unit, a bonding unit, a drying unit and a discharging unit are sequentially arranged, and the bonding unit includes a smoothing part, Bonding part, cleaning part and transmission mechanism, the smoothing part is located between the feeding unit and the bonding part, and the cleaning part is located between the bonding part and the discharging unit; the smoothing part includes steel balls, compression springs and steel balls for intermittent beating The cam of the ball, the compression spring and the cam are respectively located at both ends of the steel ball, and one end of the compression spring is connected to the frame, and the other end is connected to the steel ball; the bonding part includes an upper roller for rolling the base cloth and a support for the transfer paper The lower roller, and the upper roller and the lower roller are rotatably connected with the frame; the cleaning part includes a drum rotatably connected with the frame, and a cleaning member for cleaning the surface of the upper roller is rotatably connected to the drum, and the cleaning member and the drum There is a reset part connected between them; the transmission mechanism includes a motor, an upper roller gear, a lower roller gear, a drum gear, a driving bevel gear and a driven bevel gear; the output shaft of the motor is fixedly connected with the drum gear, and the drum gear and the drum Fixed connection, and the drum gear meshes with the upper roller gear, the upper roller gear meshes with the lower roller gear, and the diameter of the upper roller gear and the lower roller gear is equal, the upper roller gear is fixedly connected with the upper roller, and the lower roller gear is fixed with the lower roller Connection, the driving bevel gear is fixedly connected with the upper roller gear, and the driving bevel gear and the driven bevel gear mesh, and the driven bevel gear is fixedly connected with the cam.

The beneficial effects of the above-mentioned technical scheme are:

1. Through the steel ball, pressure spring and cam, the steel ball can roll back and forth on the surface of the base fabric, and the wrinkles on the surface of the base fabric can be leveled, and the smoothing part is between the feeding unit and the bonding part In this way, the base cloth can be smoothed out before it enters into the bonding part and the transfer paper is overlapped and bonded, which can effectively prevent the base cloth from wrinkling when it is transported to the bonding part, thereby effectively preventing the base cloth coating from wrinkling.

2. By letting the cleaning parts clean the surface of the upper roller under the action of the rotation of the drum, it can effectively remove the fluff and other foreign matters on the surface of the upper roller, thereby avoiding the situation of increasing the friction between the upper roller and the base cloth, and ensuring the upper roller It is always in a smooth state, further preventing the base fabric from wrinkling during the overlapping and bonding process of the transfer paper.

3. By making the gear of the upper roller mesh with the gear of the lower roller, and the diameters of the two are equal, the speed of the upper roller and the lower roller is consistent, which can avoid the displacement between the base fabric and the transfer paper caused by the difference in the speed of the upper roller and the lower roller. In some cases, the lamination effect of the base cloth and the transfer paper is better.

4. This scheme starts from leveling the base fabric before bonding the base fabric and the transfer paper, keeping the speed of the upper roller and the lower roller consistent during the bonding process, and cleaning the upper roller after bonding the base fabric in real time to reduce the gap between the upper roller and the base fabric. The combination of the three aspects of friction has a significant effect on preventing the base fabric from wrinkling, and through the setting of the transmission mechanism, only one power device can be used to realize the actions of the above three aspects, and the structure is ingenious.

Preferred solution 1, as a preferred solution of the basic solution, the end of the cleaning element is connected with a sponge layer, and the distance between the drum and the upper roller is smaller than the length of the cleaning element. The cleaning effect of the sponge layer on the surface of the upper roller is better, and when the cleaning part rotates to the upper roller, it will automatically rotate due to the limited length, so that a strong squeeze occurs between the sponge layer and the upper roller, and the sponge layer is on the upper roller. better cleaning effect.

Preferred option 2, as a preferred option of preferred option 1, the cleaning part also includes a cleaning tank fixed on the frame, and the cleaning tank includes an upper cleaning tank for squeezing the sponge layer and a lower cleaning tank for cleaning the sponge layer. The cleaning tank communicates with the lower cleaning tank. In this way, the sponge layer that has cleaned the upper roller can be cleaned when it rotates to the lower cleaning tank, and squeezed in the upper cleaning tank, so that the excess cleaning liquid in the sponge layer is squeezed into the lower cleaning tank, Ensure that the sponge layer will not bring too much cleaning liquid to the surface of the upper roller.

Preferred option 3, as a preferred option of preferred option 2, the distance between the inner wall of the upper cleaning tank and the rotating drum is less than the length of the cleaning piece, and the distance between the bottom of the lower cleaning tank and the rotating drum is greater than the length of the cleaning piece. In this way, when the cleaning part rotates to the lower cleaning tank, it returns to its original shape, the sponge layer absorbs water, and the foreign matter on its surface is washed into the water, and then when the cleaning part continues to rotate the inner wall of the upper cleaning tank, the cleaning part rotates due to the limited length , Squeeze occurs between the sponge layer and the upper cleaning tank, and the cleaning liquid in the sponge layer is squeezed out; the effect of cleaning the sponge layer is automatically realized.

In the fourth preferred option, as the basic option or the preferred option of the third preferred option, the number of steel balls is not less than two, and the steel balls are connected with a fixing frame. It can effectively increase the contact area between the steel ball and the base cloth, and improve the leveling effect of the base cloth.

Preferred solution five, as a preferred solution of preferred solution four, the fixed frame includes a connecting rod and several rotating shafts; one rotating shaft corresponds to a steel ball, and one end of the rotating shaft is rotatably connected to the steel ball, and the other end is rotatably connected to the connecting rod. In this way, not only can the respective rotations be maintained among the steel balls, but also all the steel balls can roll stably on the base cloth.

Description of drawings

Fig. 1 is the structural representation of a kind of coating equipment embodiment of the present invention;

Fig. 2 is a left view of the bonding unit in Fig. 1;

Fig. 3 is a schematic diagram of the three-dimensional structure of the cleaning part in Fig. 1;

Fig. 4 is a schematic structural view of the cleaning part in Fig. 1;

FIG. 5 is a schematic structural diagram of the transmission mechanism in FIG. 1 .

Detailed ways

Further detailed explanation through specific implementation mode below:

The reference signs in the accompanying drawings of the description include: frame 1, base cloth 10, transfer paper 11, base cloth feeding roller 2, transfer paper feeding roller 20, oven 3, base cloth receiving roller 40, transfer paper receiving roller 41 , steel ball 5, compression spring 50, cam 51, connecting rod 52, rotating shaft 53, upper roller 6, lower roller 60, drum 7, cleaning piece 70, sponge layer 71, cleaning tank 8, upper cleaning tank 80, lower cleaning Groove 81, upper roller gear 9, lower roller gear 90, drum gear 91, driving bevel gear 92, driven bevel gear 93.

The embodiment is basically shown in Figure 1: a coating equipment, including a frame 1, on which a feeding unit, a bonding unit, a drying unit and a discharging unit are sequentially arranged. Feeding unit, drying unit and discharging unit can directly adopt prior art, for example feeding unit can be base cloth feeding roller 2 and transfer paper feeding roller 20, and drying unit can be directly dried in oven 3, discharging The unit can be base fabric take-up roll 40 and transfer paper take-up roll 41 . The entire coating process is to first transport the base cloth 10 and the transfer paper 11 coated with coating slurry to the bonding unit for bonding, transfer the coating slurry on the transfer paper 11 to the base cloth 10, and then dry and dry. Then separate the base cloth 10 and the transfer paper 11 to obtain the coated base cloth 10 .

The bonding unit in this scheme includes a smoothing part, a bonding part, a cleaning part and a transmission mechanism. The smoothing part is located between the feeding unit and the bonding part, and the cleaning part is located between the bonding part and the discharging unit.

As shown in FIG. 2 , the smoothing part includes a steel ball 5 , a compression spring 50 and a cam 51 for beating the steel ball 5 intermittently. The number of steel balls 5 is not less than two, in this embodiment it is five, and there are fixing frames connected between the steel balls 5 . The fixed frame includes a connecting rod 52 and five rotating shafts 53; one rotating shaft 53 corresponds to a steel ball 5, and one end of the rotating shaft 53 is rotatably connected with the steel ball 5, and the other end is rotatably connected with the connecting rod 52. In this way, the five steel balls 5 can roll together on the surface of the base cloth 10, and the effect of smoothing the base cloth 10 is better. The compression spring 50 is positioned at the right end of the steel ball 5, and the right end of the compression spring 50 is connected with the frame 1, and the left end is welded with the steel ball 5 at the leftmost end. Like this, after the cam 51 hits the steel ball 5, the steel ball 5 slides to the right, and the clip spring 50 deforms, and the steel ball 5 slides to the left again, so that the base cloth 10 can be smoothed to the greatest extent in such a cycle.

The bonding part includes an upper roll 6 for rolling the base cloth 10 and a lower roll 60 for supporting the transfer paper 11 , and both the upper roll 6 and the lower roll 60 are rotatably connected with the frame 1 .

As shown in Figure 1, the cleaning section includes a drum 7 that is rotatably connected to the frame 1, a cleaning member 70 that is used to clean the surface of the upper roller 6 is rotatably connected on the rotating drum 7, and is connected between the cleaning member 70 and the rotating drum 7. Reset member, present embodiment is also stage clip. The structure of the cleaning member 70 is shown in FIG. 3 . A sponge layer 71 is bonded to the end of the cleaning member 70 , which can better absorb the lint on the surface of the upper roller 6 , and the cleaning effect is better. The distance between the rotating cylinder 7 and the upper roller 6 is less than the length of the cleaning part 70, so that when the cleaning part 70 rotates counterclockwise to contact with the upper roller 6, the cleaning part 70 rotates, and against the upper roller 6, the sponge layer 71 scrape off the foreign matter on the upper roller 6. The cleaning section can also include a cleaning tank 8 fixed on the frame 1, as shown in Figure 4, the cleaning tank 8 includes an upper floor cleaning tank 80 for extruding the sponge layer 71 and a lower floor cleaning tank 81 for cleaning the sponge layer 71 , the upper cleaning tank 80 communicates with the lower cleaning tank 81, and the lower cleaning tank 81 can be loaded with clear water for cleaning the sponge layer 71. The distance between the inner wall of the upper cleaning tank 80 and the rotating drum 7 is less than the length of the cleaning part 70. Like this, when the cleaning part 70 rotates to the upper cleaning tank 80, it will rotate, and the sponge layer 71 is extruded on the upper cleaning tank 80. On the inner wall; the distance between the bottom of the lower cleaning tank 81 and the drum 7 is greater than the length of the cleaning part 70, so that when the cleaning part 70 rotates counterclockwise to the lower cleaning tank 81, it returns to its original state, and the sponge layer 71 absorbs water. The foreign matters on the surface are washed into the water, and then when the cleaning part 70 continues to rotate to the inner wall of the upper cleaning tank 80 on the right side, the cleaning part 70 rotates again, and the sponge layer 71 is squeezed dry, so that the sponge layer 71 can be cleaned in a clean state. Continue to rotate, to clean the upper roller 6 surface, the cleaning effect is better.

As shown in Figure 5, the transmission mechanism includes a motor, an upper roller gear 9, a lower roller gear 90, a drum gear 91, a driving bevel gear 92 and a driven bevel gear 93, which is observed from the rear view direction of Figure 1 structure. The output shaft of the motor is fixedly connected with the drum gear 91, and the drum gear 91 is fixedly connected with the drum 7, thereby driving the drum 7 to rotate; the drum gear 91 meshes with the upper roller gear 9, and the upper roller gear 9 and the lower roller gear 90 Mesh, and the diameter of upper roller gear 9 and lower roller gear 90 is equal, upper roller gear 9 is fixedly connected with upper roller 6, and lower roller gear 90 is fixedly connected with lower roller 60, like this, between upper roller 6 and lower roller 60 The rotation speed is consistent, which can avoid the displacement between the base cloth 10 and the transfer paper 11 caused by the difference in the speed of the upper roller 6 and the lower roller 60, and the superposition effect of the base cloth 10 and the transfer paper 11 is better; the driving bevel gear 92 is fixedly connected with the upper roller gear 9, and the driving bevel gear 92 meshes with the driven bevel gear 93, and the driven bevel gear 93 is fixedly connected with the cam 51. In this way, only one motor is needed, which can not only move the steel ball 5 to smooth the base cloth 10, but also rotate the upper roller 6 and the lower roller 60 to bond the base cloth 10 and the transfer paper 11, and also allow the drum 7 to rotate The upper roller 6 is thereby cleaned.

When coating, the base cloth 10 and the transfer paper 11 coated with coating slurry are transported to the bonding unit respectively; and the motor is started; the motor drives the drum gear 91 to rotate, and the drum 7 rotates. At the same time, the upper roller gear 9 and the lower roller When the gear 90 rotates, the upper roller 6 and the lower roller 60 rotate accordingly, and the driving bevel gear 92 and the driven bevel gear 93 also rotate, and the cam 51 rotates, thereby hitting the steel ball 5 intermittently. The steel ball 5 moves back and forth between the cam 51 and the compression spring 50 to smooth the base cloth 10 and prevent the base cloth 10 from wrinkling. Then the base cloth 10 and the transfer paper 11 enter between the upper roll 6 and the lower roll 60, and are squeezed and bonded by the upper roll 6 and the lower roll 60, so that the coating slurry on the transfer paper 11 is transferred to the base cloth 10; During the rotation of the upper roller 6, the drum 7 rotates, and the pair of cleaning parts 70 rotates accordingly. The sponge layer 71 on the cleaning part 70 cleans the upper roller 6; at the same time, the cleaning part 70 will also enter the lower layer during the rotation process. Automatic cleaning is carried out in the cleaning tank 81 to ensure that the sponge layer 71 against the upper roller 6 is clean every time, and the cleaning effect is better; in this way, it can effectively avoid the increase of the upper roller due to foreign matter such as lint on the surface of the upper roller 6. 6 and the friction between the base cloth 10, to ensure that the upper roller 6 is always in a smooth state, further prevent the base cloth 10 from wrinkling, and the coating effect is better.

What is described above is only an embodiment of the present invention, and common knowledge such as specific structures and characteristics known in the scheme are not described here too much. It should be pointed out that for those skilled in the art, under the premise of not departing from the structure of the present invention, several modifications and improvements can also be made, and these should also be regarded as the protection scope of the present invention, and these will not affect the implementation of the present invention. Effects and utility of patents. The scope of protection required by this application shall be based on the content of the claims, and the specific implementation methods and other records in the specification may be used to interpret the content of the claims.

Claims (6)

1. it is equipped with feed unit, bonding unit, drying unit successively a kind of coating apparatus, including rack, in rack and goes out material list Member, it is characterised in that：The bonding unit includes smoothing portion, bonding portion, cleaning section and transmission mechanism, the portion of smoothing be located at into Between material unit and bonding portion, the cleaning section is between bonding portion and discharging unit；The portion of smoothing includes steel ball, compression spring With the cam for intermittently impacting steel ball, the compression spring is located at the both ends of steel ball with cam respectively, and compression spring one end connects with rack Connect, the other end is connected with steel ball；The bonding portion includes being used to roll the upper roller of base fabric and is used to support the lower roll of transfer paper, and Upper roller is connected with lower roll with gantry rotation；The cleaning section includes the rotating cylinder being connected with gantry rotation, is rotated on the rotating cylinder It is connected with for cleaning the cleaning device of upper roller surface, and return unit is connected between cleaning device and rotating cylinder；The transmission mechanism bag Include motor, upper roll gear, lower roll gear, rotating cylinder gear, drive bevel gear and driven wheel of differential；The output shaft of the motor is with turning Cylinder gear be fixedly connected, the rotating cylinder gear is fixedly connected with rotating cylinder, and rotating cylinder gear is engaged with the upper roll gear, it is described on Roller gear is engaged with lower roll gear, and upper roll gear is equal with the diameter of lower roll gear, and upper roll gear is fixedly connected with upper roller, under Roller gear is fixedly connected with lower roll, and the drive bevel gear is fixedly connected with the upper roll gear, and drive bevel gear and driven Bevel gear engages, and the driven wheel of differential is fixedly connected with the cam.

A kind of 2. coating apparatus according to claim 1, it is characterised in that：The end of the cleaning device is connected with sponge Layer, and length of the rotating cylinder to the distance between upper roller less than cleaning device.

A kind of 3. coating apparatus according to claim 2, it is characterised in that：The cleaning section, which further includes, to be fixed in rack Rinse bath, the rinse bath include be used for extrude the upper strata rinse bath of the spongy layer and for cleaning under the spongy layer Layer rinse bath, the upper strata rinse bath are connected with lower floor rinse bath.

A kind of 4. coating apparatus according to claim 3, it is characterised in that：The upper strata rinse bath inner wall is between rotating cylinder Distance be less than the length of cleaning device, the length of the distance between lower floor's bottom of rinse bath to rotating cylinder more than cleaning device.

A kind of 5. coating apparatus according to claim 1 or 4, it is characterised in that：The quantity of the steel ball is no less than two, And fixed frame is connected between steel ball.

A kind of 6. coating apparatus according to claim 5, it is characterised in that：The fixed frame includes connecting rod and some turns Axis；One shaft corresponds to a steel ball, and shaft one end is rotatablely connected with steel ball, and the other end is connected with link rotatable.