A color matching device and color matching method for super-large size high-flatness PVC decorative film

Abstract

The invention discloses a color matching device for super-large-size high-flatness PVC decorative film, comprising a carrying box, legs, rollers, a control cabinet, a transmission mechanism, a grinding mechanism, a PVC film and a drying mechanism. The color matching process includes pigment grinding, masterbatch coating, pressing height adjustment, film coloring and pigment drying. The invention improves the adjustment structure in the existing color matching device, and the turntable is rotated by adjusting the lever, and at the same time, the first clamping block squeezes the toothed disc to make it rotate. The rotation of the toothed disc is transmitted through a rotating shaft to make the threaded column rotate, and the threaded column drives the threaded sleeve to move up and down to complete the adjustment of the pressure roller position. After the toothed disc rotates one tooth pitch, the second clamping block pops out of the toothed disc and is clamped again. The support rod and the clamping groove are slidably connected to support and limit the second clamping block, so that it moves horizontally without deflection. Under the action of the second clamping block, the amplitude of each rotation of the toothed disc is one tooth pitch, so that the uniform and stable adjustment of the pressure roller position is achieved.

Description

[0001] This application is a divisional application for a color matching process and production equipment for an extra-large-sized high-flatness PVC decorative film, and the application date of the original application document is 20210407, the application number is CN202110372327.1, and the name of the invention is a color matching process and production equipment for an extra-large-sized high-flatness PVC decorative film. Technical Field

[0002] The invention relates to the technical field of color matching of PVC decorative films, and in particular to a color matching device and a color matching method for a super-large-size high-flatness PVC decorative film. Background Art

[0003] Color overprinting is a printing technology. Its working process is that ink is applied to the places with text and images on the printing plate manually or by a printing press, and then transferred to substrates such as metal plates, plastics, leather and wood boards.

[0004] The embossing roller in the existing color matching equipment needs to be adjusted when embossing PVC films of different thicknesses. The adjustment range depends on the experience of the staff, and it is impossible to achieve uniform and stable adjustment, resulting in certain errors during embossing, affecting the embossing effect. Therefore, corresponding improvements are needed. Summary of the invention

[0005] The object of the present invention is to provide a color matching device and a color matching method for an ultra-large-size high-flatness PVC decorative film, so as to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a color matching device for super-large-sized high-flatness PVC decorative film, comprising a carrying box, legs, rollers, a control cabinet, a conveying mechanism, a grinding mechanism, a PVC film and a drying mechanism, wherein the bottom of the carrying box is symmetrically rotatably mounted with legs, and the bottom of the carrying box is symmetrically fixedly mounted with rollers near the legs, a control cabinet is fixedly mounted on one side of the carrying box, a conveying mechanism is fixedly mounted on the top of the carrying box, a grinding mechanism is fixedly mounted on the top of the carrying box near the input end of the conveying mechanism, a PVC film is mounted on the conveying mechanism, a drying mechanism is fixedly mounted on the top of the carrying box near the output end of the conveying mechanism, the control cabinet is electrically connected to the conveying mechanism, the grinding mechanism and the drying mechanism, and a coloring mechanism with a stabilizing adjustment mechanism is fixedly mounted at the center of the carrying box.

[0007] Preferably, the conveying mechanism includes a first mounting frame, an output roller, a motor, a second mounting frame, an input roller and a conveyor belt, the first mounting frame is symmetrically fixedly installed on one side of the top of the carrying box, and the output roller is rotatably installed between the first mounting frames, the motor is fixedly installed on the side of the top of the carrying box away from the first mounting frame, the second mounting frame is symmetrically fixedly installed on the side of the top of the carrying box close to the motor, the input roller is rotatably installed between the second mounting frames, and one side of the input roller is fixedly connected to the output end of the motor, and a conveyor belt is wound between the output roller and the input roller.

[0008] Preferably, the grinding mechanism includes a base, a battery pile, a colloid mill, a feed hopper, a discharge port and a heat dissipation groove. The base is fixedly installed on the top of the carrying box close to the input end of the conveying mechanism, and the battery pile is fixedly installed on one side of the upper surface of the base. The colloid mill is fixedly installed on the side of the upper surface of the base away from the battery pile, and the feed hopper is fixedly installed on the top of the colloid mill, and the discharge port is fixedly installed on one side of the colloid mill. Heat dissipation grooves are symmetrically opened on the outer wall of the base.

[0009] Preferably, the coloring mechanism includes a bearing pile, a bearing spring, a fixing frame, an adjusting assembly, a threaded column, a threaded sleeve and a pressure roller. A bearing pile is fixedly installed on one side of the center of the top of the bearing box. The fixing frame is elastically connected to the top of the bearing pile through a bearing spring. An adjusting assembly is fixedly installed on the side of the top of the bearing box away from the bearing pile, and a threaded column is installed on the side of the adjusting assembly away from the bearing box. A threaded sleeve is cooperated with the side of the threaded column away from the adjusting assembly. A pressure roller is rotatably installed between the threaded sleeve and the fixing frame, and the pressure roller is in extrusion contact with the PVC film.

[0010] 7. The swiftly and minutely adjusting device for a wood-planer working table as claimed in claim 1, wherein said adjusting base is an assembly made from a first piece and a second piece, and said first piece is adapted to engage with said adjusting base and said second piece of equipment.

[0011] Preferably, mesh stripes are evenly arranged on the outer wall of the adjusting lever.

[0012] The present invention also provides a color matching method for an oversized high-flatness PVC decorative film, comprising the following steps:

[0013] Pigment grinding: Add the pigment used for color matching from the feed hopper to the colloid mill, then add plasticizer in appropriate proportion, control the colloid mill to start through the control cabinet, and continuously stir and grind to make the pigment completely soaked and become a paste-like color paste that is discharged from the discharge port, also known as color masterbatch.

[0014] Masterbatch coating: The color masterbatch prepared in the previous step is evenly coated on the surface of the pressure roller.

[0015] Pressing height adjustment: Determine the thickness of the coloring according to the actual production needs, and use this as a standard to drive the threaded column to rotate through the adjustment component in the coloring mechanism. The height of the threaded sleeve is adjusted through the cooperation between the threaded column and the threaded sleeve, that is, the height of the pressure roller is adjusted. During the lifting and lowering process of the threaded sleeve, the elastic deformation of the load-bearing spring is used to make the height of the pressure roller away from the threaded sleeve change synchronously.

[0016] Coloring PVC film: Lay the PVC film flatly on the side of the conveyor belt close to the input roller, turn on the motor to make the conveyor belt run to transport the PVC film in a straight line, and drive the pressure roller to rotate when it reaches the pressure roller position to transfer the color masterbatch to the surface of the PVC film.

[0017] Pigment drying: After the coloring in the previous step, the PVC film is transported to the side of the output roller through the conveyor belt, and the drying mechanism is controlled to blow out hot air to dry the pigment so that the pigment is completely combined with the PVC film, thus completing the coloring of the super-large size and high-flatness PVC decorative film.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] The present invention improves the adjustment structure in the existing color registration equipment, and the turntable is rotated by adjusting the lever, and at the same time the first clamping block squeezes the toothed disc to make it rotate. The rotation of the toothed disc causes the threaded column to rotate through the rotating shaft transmission, and the threaded column drives the threaded sleeve to move up and down, thereby completing the adjustment of the pressure roller position. After the toothed disc rotates one tooth pitch, under the action of the second telescopic spring, the second clamping block pops out of the toothed disc and re-engages it again. The support rod and the clamping groove are slidably connected to support and limit the second clamping block, so that it moves horizontally without deflection. Under the action of the second clamping block, the amplitude of each rotation of the toothed disc is one tooth pitch, thereby achieving uniform and stable adjustment of the pressure roller position. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2It is a schematic diagram of the structure of the transmission mechanism of the present invention;

[0022] Figure 3 This is a schematic diagram of the grinding mechanism structure of the present invention;

[0023] Figure 4 It is a schematic diagram of the coloring mechanism structure of the present invention;

[0024] Figure 5 for Figure 4 Schematic diagram of structural details at A in the middle;

[0025] Figure 6 This is a schematic diagram of the first structure of the adjustment component of the present invention;

[0026] Figure 7 This is a second structural schematic diagram of the regulating assembly of the present invention.

[0027] In the figure: 1, bearing box; 2, supporting legs; 3, roller; 4, control cabinet; 5, conveying mechanism; 51, first mounting frame; 52, output roller; 53, motor; 54, second mounting frame; 55, input roller; 56, conveyor belt; 6, grinding mechanism; 61, base; 62, battery pile; 63, colloid mill; 64, feeding hopper; 65, discharge port; 66, heat dissipation slot; 7, PVC film; 8, coloring mechanism; 81, bearing pile; 82, bearing Load spring; 83, fixing frame; 84, adjusting assembly; 841, bottom plate; 842, mounting block; 843, rotating shaft; 844, toothed disc; 845, rotating disc; 846, adjusting lever; 847, first telescopic spring; 848, first clamping block; 849, second telescopic spring; 8410, second clamping block; 8411, supporting rod; 8412, clamping groove; 85, threaded column; 86, threaded sleeve; 87, pressing roller; 9, drying mechanism. DETAILED DESCRIPTION

[0028] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0029] See also Figure 1The figure shows a color matching device for an oversized high-flatness PVC decorative film, comprising a carrying box 1, legs 2, rollers 3, a control cabinet 4, a conveying mechanism 5, a grinding mechanism 6, a PVC film 7 and a drying mechanism 9. The bottom of the carrying box 1 is symmetrically rotatably mounted with legs 2, and the bottom of the carrying box 1 is symmetrically fixedly mounted with rollers 3 near the legs 2. The control cabinet 4 is fixedly mounted on one side of the carrying box 1. The top of the carrying box 1 is fixedly mounted with a conveying mechanism 5. The top of the carrying box 1 is fixedly mounted with a grinding mechanism 6 near the input end of the conveying mechanism 5. A PVC film 7 is mounted on the conveying mechanism 5. The top of the carrying box 1 is fixedly mounted with a drying mechanism 9 near the output end of the conveying mechanism 5. The control cabinet 4 is electrically connected to the conveying mechanism 5, the grinding mechanism 6 and the drying mechanism 9. A coloring mechanism 8 with a stable adjustment mechanism is fixedly mounted at the center of the carrying box 1.

[0030] See also Figure 2 The conveying mechanism 5 includes a first mounting frame 51, an output roller 52, a motor 53, a second mounting frame 54, an input roller 55 and a conveyor belt 56. The first mounting frame 51 is symmetrically fixedly installed on one side of the top of the carrying box 1, and the output roller 52 is rotatably installed between the first mounting frame 51. The motor 53 is fixedly installed on the side of the top of the carrying box 1 away from the first mounting frame 51. The second mounting frame 54 is symmetrically fixedly installed on the side of the top of the carrying box 1 close to the motor 53. The input roller 55 is rotatably installed between the second mounting frames 54, and one side of the input roller 55 is fixedly connected to the output end of the motor 53. A conveyor belt 56 is wound between the output roller 52 and the input roller 55.

[0031] See also Figure 3 The grinding mechanism 6 includes a base 61, a battery pile 62, a colloid mill 63, a feed hopper 64, a discharge port 65 and a heat dissipation groove 66. The base 61 is fixedly installed on the top of the carrying box 1 close to the input end of the conveying mechanism 5, and the battery pile 62 is fixedly installed on one side of the upper surface of the base 61. The colloid mill 63 is fixedly installed on the upper surface of the base 61 away from the battery pile 62, and the feed hopper 64 is fixedly installed on the top of the colloid mill 63. The discharge port 65 is fixedly installed on one side of the colloid mill 63, and the heat dissipation grooves 66 are symmetrically opened on the outer wall of the base 61.

[0032] See also Figure 4 and Figure 5The coloring mechanism 8 includes a bearing pile 81, a bearing spring 82, a fixing frame 83, an adjusting component 84, a threaded column 85, a threaded sleeve 86 and a pressure roller 87. The bearing pile 81 is fixedly installed on one side of the center of the top of the bearing box 1. The fixing frame 83 is elastically connected to the top of the bearing pile 81 through the bearing spring 82. The adjusting component 84 is fixedly installed on the side of the top of the bearing box 1 away from the bearing pile 81, and the adjusting component 84 is installed on the side away from the bearing box 1. The threaded column 85 is equipped with a threaded sleeve 86 on the side away from the adjusting component 84. A pressure roller 87 is rotatably installed between the threaded sleeve 86 and the fixing frame 83, and the pressure roller 87 is in extrusion contact with the PVC film 7.

[0033] See also Figure 6 and Figure 7 The adjusting assembly 84 includes a bottom plate 841, a mounting block 842, a rotating shaft 843, a toothed disc 844, a rotating disc 845, an adjusting lever 846, a first telescopic spring 847, a first clamping block 848, a second telescopic spring 849, a second clamping block 8410, a support rod 8411 and a clamping slot 8412. The bottom plate 841 is fixedly mounted on an outer wall on one side of the center of the carrying box 1, and a mounting block 842 is fixedly mounted on one side of the upper surface of the bottom plate 841. A rotating shaft 843 is rotatably mounted in the mounting block 842. The top end of the rotating shaft 843 is fixedly connected to the threaded column 85, and a toothed disc 844 is fixedly mounted on the bottom end of the rotating shaft 843. The upper surface of the bottom plate 841 is far away A turntable 845 is rotatably installed on one side of the mounting block 842, and an adjusting lever 846 is fixedly installed on the upper surface of the turntable 845. The first clamping block 848 is elastically connected to one end of the adjusting lever 846 through a first telescopic spring 847, and the first clamping block 848 cooperates with the toothed disk 844. The second clamping block 8410 is elastically connected to one side of the mounting block 842 through a second telescopic spring 849, and the second clamping block 8410 cooperates with the toothed disk 844. A support rod 8411 is fixedly installed on the outer wall of the second clamping block 8410, a clamping groove 8412 is opened on the bottom plate 841, and the support rod 8411 is slidably connected to the clamping groove 8412 at one end away from the second clamping block 8410.

[0034] The working principle of the adjustment component 84 is as follows. The turntable 845 is rotated by adjusting the lever 846. At the same time, the first clamping block 848 squeezes the toothed disc 844 to make it rotate. The rotation of the toothed disc 844 is transmitted through the rotating shaft 843 to make the threaded column 85 rotate. The threaded column 85 then drives the threaded sleeve 86 to move up and down, thereby completing the adjustment of the position of the pressure roller 87. After the toothed disc 844 rotates one tooth pitch, under the action of the second telescopic spring 849, the second clamping block 8410 pops out of the toothed disc 844 and re-inserts it again. The support rod 8411 and the clamping slot 8412 are slidably connected to support and limit the second clamping block 8410, so that it moves horizontally without deflection. Under the action of the second clamping block 8410, the amplitude of each rotation of the toothed disc 844 is one tooth pitch, thereby achieving uniform and stable adjustment of the position of the pressure roller 87.

[0035] See also Figure 7 The outer wall of the adjusting lever 846 is evenly provided with mesh stripes.

[0036] This prevents the staff from slipping when holding the adjustment lever 846.

[0037] The embodiment of the present invention also provides a color matching method for an oversized high-flatness PVC decorative film, comprising the following steps:

[0038] Pigment grinding: Add the pigment used for color matching from the feed hopper 64 to the colloid mill 63, and then add plasticizer in an appropriate proportion. The colloid mill 63 is turned on by the control cabinet 4, and is continuously stirred and ground to make the pigment completely saturated and become a paste-like color paste that is discharged from the discharge port 65, also known as color masterbatch.

[0039] Masterbatch coating: The color masterbatch prepared in the previous step is evenly coated on the surface of the pressure roller 87.

[0040] Adjustment of the pressing height: Determine the thickness of the coloring according to the actual production requirements, and use this as a standard to drive the threaded column 85 to rotate through the adjustment component 84 in the coloring mechanism 8. The threaded column 85 cooperates with the threaded sleeve 86 to adjust the height of the threaded sleeve 86, that is, to adjust the height of the pressure roller 87. During the lifting and lowering process of the threaded sleeve 86, the elastic deformation of the load-bearing spring 82 is used to make the height of the pressure roller 87 away from the side of the threaded sleeve 86 change synchronously.

[0041] Coloring of PVC film: Lay the PVC film 7 flatly on the side of the conveyor belt 56 close to the input roller 55, turn on the motor 53 to make the conveyor belt 56 run to transport the PVC film 7 in a straight line, and drive the pressure roller 87 to rotate when it reaches the position of the pressure roller 87 to transfer the color masterbatch to the surface of the PVC film 7.

[0042] Pigment drying: the PVC film 7 colored in the previous step is transported to the side of the output roller 52 via the conveyor belt 56, and the drying mechanism 9 is controlled to blow out hot air to dry the pigment so that the pigment is completely combined with the PVC film 7, that is, the coloring of the PVC film 7 is completed.

[0043] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprise", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device containing a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A color matching device for an oversized high-flatness PVC decorative film, comprising a carrying box (1), legs (2), rollers (3), a control cabinet (4), a conveying mechanism (5), a grinding mechanism (6), a PVC film (7) and a drying mechanism (9), wherein the bottom of the carrying box (1) is symmetrically rotatably mounted with legs (2), and the bottom of the carrying box (1) is symmetrically fixedly mounted with rollers (3), the control cabinet (4) is fixedly mounted on one side of the carrying box (1), the top of the carrying box (1) is fixedly mounted with a conveying mechanism (5), the top of the carrying box (1) is fixedly mounted with a grinding mechanism (6) near the input end of the conveying mechanism (5), the conveying mechanism (5) is provided with a PVC film (7), the top of the carrying box (1) is fixedly mounted with a drying mechanism (9) near the output end of the conveying mechanism (5), the control cabinet (4) is electrically connected to the conveying mechanism (5), the grinding mechanism (6) and the drying mechanism (9), and the characteristics are: A coloring mechanism (8) having a stable adjustment mechanism is fixedly installed at the center of the carrying box (1); The coloring mechanism (8) comprises a bearing pile (81), a bearing spring (82), a fixing frame (83), an adjusting assembly (84), a threaded column (85), a threaded sleeve (86) and a pressure roller (87); a bearing pile (81) is fixedly installed on one side of the center of the top of the bearing box (1); the fixing frame (83) is elastically connected to the top of the bearing pile (81) through the bearing spring (82); an adjusting assembly (84) is fixedly installed on the side of the top of the bearing box (1) away from the bearing pile (81); a threaded column (85) is installed on the side of the adjusting assembly (84) away from the bearing box (1); a threaded sleeve (86) is matched with the side of the threaded column (85) away from the adjusting assembly (84); a pressure roller (87) is rotatably installed between the threaded sleeve (86) and the fixing frame (83), and the pressure roller (87) is in extrusion contact with the PVC film (7); The adjustment assembly (84) comprises a bottom plate (841), a mounting block (842), a rotating shaft (843), a toothed disc (844), a rotating disc (845), an adjustment lever (846), a first telescopic spring (847), a first clamping block (848), a second telescopic spring (849), a second clamping block (8410), a support rod (8411) and a clamping slot (8412); the bottom plate (841) is fixedly mounted on an outer wall at one side of the center of the carrying box (1), and a mounting block (842) is fixedly mounted on one side of the upper surface of the bottom plate (841); a rotating shaft (843) is rotatably mounted in the mounting block (842); the top end of the rotating shaft (843) is fixedly connected to the threaded column (85), and the bottom end of the rotating shaft (843) is fixedly mounted with a toothed disc (844); the upper surface of the bottom plate (841) A rotating disk (845) is rotatably mounted on a side away from the mounting block (842), and an adjusting lever (846) is fixedly mounted on the upper surface of the rotating disk (845); the first clamping block (848) is elastically connected to one end of the adjusting lever (846) through a first telescopic spring (847), and the first clamping block (848) cooperates with the toothed disk (844); the second clamping block (8410) is elastically connected to one side of the mounting block (842) through a second telescopic spring (849), and the second clamping block (8410) cooperates with the toothed disk (844); a supporting rod (8411) is fixedly mounted on the outer wall of the second clamping block (8410); a clamping groove (8412) is provided on the bottom plate (841), and the end of the supporting rod (8411) away from the second clamping block (8410) is slidably connected to the clamping groove (8412).

2. The color matching equipment for super-large-size high-flatness PVC decorative film according to claim 1 is characterized by: The conveying mechanism (5) comprises a first mounting frame (51), an output roller (52), a motor (53), a second mounting frame (54), an input roller (55) and a conveyor belt (56); the first mounting frame (51) is symmetrically fixedly mounted on one side of the top of the carrying box (1), and the output roller (52) is rotatably mounted between the first mounting frame (51); the motor (53) is fixedly mounted on the side of the top of the carrying box (1) away from the first mounting frame (51); the second mounting frame (54) is symmetrically fixedly mounted on the side of the top of the carrying box (1) close to the motor (53); the input roller (55) is rotatably mounted between the second mounting frame (54), and one side of the input roller (55) is fixedly connected to the output end of the motor (53); and the conveyor belt (56) is wound between the output roller (52) and the input roller (55).

3. The color matching equipment for super-large-size high-flatness PVC decorative film according to claim 1 is characterized by: The grinding mechanism (6) comprises a base (61), a battery pile (62), a colloid mill (63), a feed hopper (64), a discharge port (65) and a heat dissipation groove (66); the base (61) is fixedly mounted on the top of the carrying box (1) near the input end of the conveying mechanism (5), and the battery pile (62) is fixedly mounted on one side of the upper surface of the base (61); the colloid mill (63) is fixedly mounted on the upper surface of the base (61) away from the battery pile (62), and the feed hopper (64) is fixedly mounted on the top of the colloid mill (63); the discharge port (65) is fixedly mounted on one side of the colloid mill (63), and the heat dissipation grooves (66) are symmetrically provided on the outer wall of the base (61).

4. The color matching equipment for super-large-size high-flatness PVC decorative film according to claim 1 is characterized by: The outer wall of the adjusting lever (846) is evenly provided with mesh stripes.

5. A method for coloring a super-large-sized high-flatness PVC decorative film applicable to a coloring device for coloring a super-large-sized high-flatness PVC decorative film according to any one of claims 1 to 4, characterized in that: The specific steps are as follows: 1) Pigment grinding: The pigment used for coloring is added from the feeding hopper (64) to the colloid mill (63), and then a plasticizer is added thereto in an appropriate proportion. The colloid mill (63) is turned on by the control cabinet (4), and the mixture is continuously stirred and ground to make the pigment completely saturated, and a paste-like color paste is discharged from the discharge port (65), which is also called a color masterbatch; 2) Masterbatch coating: the color masterbatch prepared in the previous step is evenly coated on the surface of the pressure roller (87); 3) Pressing height adjustment: The thickness of the coloring is determined according to the actual production requirements, and based on this standard, the adjusting component (84) in the coloring mechanism (8) is used to drive the threaded column (85) to rotate, and the threaded sleeve (86) is adjusted in height through the cooperation between the threaded column (85) and the threaded sleeve (86), that is, the height of the pressing roller (87) is adjusted. During the lifting and lowering process of the threaded sleeve (86), the elastic deformation of the bearing spring (82) is used to make the height of the pressing roller (87) away from the threaded sleeve (86) change synchronously; 4) Coloring the PVC film: the PVC film (7) is evenly laid on the side of the conveyor belt (56) close to the input roller (55), and the motor (53) is turned on to make the conveyor belt (56) run to transport the PVC film (7) in a straight line. When the conveyor belt (56) reaches the position of the pressing roller (87), the pressing roller (87) is driven to rotate to transfer the color masterbatch to the surface of the PVC film (7); 5) Pigment drying: The PVC film (7) colored in the previous step is transported to one side of the output roller (52) via a conveyor belt (56), and the drying mechanism (9) is controlled to blow out hot air to dry the pigment so that the pigment is completely combined with the PVC film (7), thus completing the coloring of the PVC film (7).

Images