Coating equipment and process for pearlescent specialty paper

Abstract

The present invention belongs to the technical field of pearlescent paper preparation, and particularly relates to a coating device for pearlescent specialty paper, comprising a machine body, and further comprising: a storage tank fixedly mounted in the machine body for storing pearlescent ink; a coating roller rotatably connected to the machine body and located above the storage tank for dipping the pearlescent ink; a pressing roller rotatably connected to the machine body and located above the coating roller; a scraper assembly A fixedly mounted on a side wall of the machine body; and a scraper assembly B fixedly mounted on a side wall of the machine body and located above scraper assembly A. A drive mechanism is provided between scraper assembly A and scraper assembly B for driving scraper assembly A and scraper assembly B toward or away from the coating roller. The present invention has the beneficial effects of: through the mutual cooperation of scraper assembly A, scraper assembly B, and the drive mechanism, the device can be adapted to the width of the paper and the thickness of the pearlescent layer to be coated, thereby avoiding ink waste and paper disqualification, and having a simple structure and ease of use.

Description

Technical Field

[0001] The present invention relates to the field of pearlescent paper preparation technology, and in particular to a coating device and process for pearlescent specialty paper. Background Art

[0002] Pearlescent paper boasts a smooth surface, thick thickness, strong reflectivity, and a pearlescent luster. It is a small subcategory within specialty papers. The pearlescent paper market in my country was relatively new. Before 2000, it was rare and primarily dependent on imports, concentrated in the developed Pearl River Delta region. Due to its striking pearlescent effect, pearlescent paper quickly gained market acceptance. The high price of imported pearlescent paper and the huge profits for distributors prompted many companies to invest in research and development, ultimately forming a pearlescent paper industry chain in my country. Pearlescent paper is widely used in high-end catalogs, books, exquisite packaging, boxes, greeting cards, hang tags, and more.

[0003] In the prior art, existing coating devices often use a rotating coating roller to dip into the pearlescent ink in an oil tank, and then transfer the pearlescent ink to the paper to be coated during the rotation. A scraper is often used to control the thickness of the pearlescent layer. However, the distance between the scraper and the coating roller cannot be adjusted in the prior art, so only one thickness of pearlescent paper can be coated. Moreover, when the width of the pearlescent paper changes, because the width of the coating roller dipped into the pearlescent ink remains the same as the coating roller's length, excess pearlescent ink will gradually adhere to the squeezing roller and the other side of the paper (not to be coated), resulting in waste or unqualified paper coating. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a coating device and process for pearlescent specialty paper to solve the above problems.

[0005] The technical solution of the present invention is achieved as follows: A coating device for pearlescent specialty paper includes a body and further includes:

[0006] The material storage tank is fixedly installed in the machine body and is used to store pearlescent ink;

[0007] A coating roller is rotatably connected to the machine body and is located above the material storage tank for dipping the pearlescent ink;

[0008] A nip roller, rotatably connected to the machine body and located above the coating roller;

[0009] The scraper assembly A is fixedly installed on one side wall of the machine body;

[0010] The scraper assembly B is fixedly installed on one side wall of the machine body and is located above the scraper assembly A;

[0011] A driving mechanism is provided between the scraper assembly A and the scraper assembly B for driving the scraper assembly A and the scraper assembly B to move closer to or away from the paint roller.

[0012] Furthermore, the scraper assembly A includes:

[0013] The support plate A is fixedly mounted on one side wall of the machine body, and the length direction of the support plate A is parallel to the length direction of the coating roller;

[0014] Scraper A is slidably connected to the lower end surface of support plate A;

[0015] A chute is provided in the middle of the upper end of the support plate A along the width direction of the support plate A, and the chute is open at one end adjacent to the coating roller;

[0016] Among them, a connecting plate protruding from the slot is fixedly installed on the upper end of the scraper A, and a rack A that cooperates with the driving mechanism is fixedly installed on the outer side of the connecting plate.

[0017] Furthermore, the scraper assembly B includes:

[0018] Support plate B, fixedly installed on one side wall of the machine body;

[0019] Scraper B, located above support plate B;

[0020] Scraper C, located on the right side of scraper B;

[0021] The driven gear A is rotatably connected to the support plate B and is located between the scrapers B and C;

[0022] Among them, the lower ends of scrapers B and scrapers C are respectively fixed with sliding rods A and sliding rods B arranged along the length direction of support plate B, and the opposite sides of sliding rods A and sliding rods B are respectively fixed with racks B and racks C engaged with driven gear A.

[0023] Furthermore, the scraper assembly B further includes:

[0024] The limiting plates are in the shape of a concave character and are provided with two. The two limiting plates are fixedly installed on both sides of the upper end of the support plate B.

[0025] The two limiting plates correspond to the sliding rod A and the sliding rod B one by one, and the lower ends of the sliding rod A and the sliding rod B are respectively slidably connected in the two limiting plates.

[0026] Furthermore, the scraper B and the scraper C are both in an inverted "L" shape, and the horizontal height of the inner upper end of the scraper C is higher than the horizontal height of the upper end of the scraper B.

[0027] By adopting the above technical solution, the two scrapers will not collide or interfere with each other when moving on the support plate B.

[0028] The present invention is further configured as follows: the driving mechanism includes:

[0029] The electric telescopic rod is fixedly installed on the upper end of the machine body;

[0030] The driving motor is fixedly installed at the lower end of the electric telescopic rod;

[0031] Driving gear A is fixedly installed on the output shaft of the driving motor;

[0032] Driving gear B is fixedly mounted on the output shaft of the driving motor and is located below the driving gear A;

[0033] Among them, the upper end of the driven gear A is penetrated by a through hole for the driving gear A and the driving gear B to pass through, and the lower end of the through hole is set through the lower end of the support plate B. The inner diameter of the through hole is larger than the outer diameter of the driving gear A and the driving gear B. The inner side of the driven gear A is integrally formed with a tooth A that matches the driving gear A. One side of the upper end of the support plate A is rotatably connected to the driven gear B that meshes with the rack A. The upper end of the driven gear B is provided with a receiving groove, and the receiving groove is integrally formed with a tooth B that matches the driving gear B. When the driving gear A is engaged with the tooth A, the driving gear B and the tooth B are away from each other. When the driving gear B is engaged with the tooth B, the driving gear A and the tooth A are away from each other.

[0034] Furthermore, a liquid level sensor is fixedly embedded on one side of the inner edge of the storage tank, and a liquid filling port for connecting to an external liquid storage tank is provided on one side wall of the storage tank.

[0035] Furthermore, a coating process of a coating device for pearlescent specialty paper includes the following steps:

[0036] Step 1: Prepare the base paper material, then take a certain amount of pearlescent pigment, gelling agent and adhesive and mix them evenly in proportion to form a mixed pearlescent ink;

[0037] Step 2: Pour the mixed pearlescent ink into the external liquid storage tank, then open the external liquid storage tank and inject a certain amount of the mixed pearlescent ink into the storage tank;

[0038] Step 3: Measure the width of the base paper and use it as a reference to adjust the relative position of the scraper assembly B and the coating roller;

[0039] Step 4: Adjust the distance between the scraper assembly A and the coating roller;

[0040] Step 5: Turn on the coating equipment and allow the coating roller to transfer 1 to 5 times to the base paper;

[0041] Step 6: The transferred base paper is heated and dried in an external dryer, and the pearlescent paper is obtained after cooling.

[0042] The beneficial effects of the present invention are:

[0043] Through the cooperation between the scraper assembly A, the scraper assembly B and the driving mechanism, the paper can be adapted and adjusted according to the width of the paper and the thickness of the pearlescent layer to be coated, without causing unnecessary ink waste and paper disqualification. The structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0045] Figure 1 The overall structure of the coating device according to the specific embodiment of the present invention is shown as follows Figure 1 ;

[0046] Figure 2 The overall structure of the cloth device according to the specific embodiment of the present invention is shown in FIG. Figure 2 ;

[0047] Figure 3 This is a left side view of a coating device according to a specific embodiment of the present invention;

[0048] Figure 4 This is a partial enlarged view of a specific embodiment A of the present invention;

[0049] Figure 5 This is a partial enlarged view of specific embodiment B of the present invention. DETAILED DESCRIPTION

[0050] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0051] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0052] Example 1:

[0053] like Figures 1 to 5 As shown, the present invention discloses a coating device for pearlescent specialty paper, comprising a body 1, and further comprising:

[0054] The material storage tank 2 is fixedly installed in the machine body and is used to store pearlescent ink;

[0055] The coating roller 3 is rotatably connected to the body 1 and is located above the material storage tank 2 for dipping the pearlescent ink;

[0056] The nip roller 4 is rotatably connected to the machine body 1 and is located above the coating roller 3;

[0057] The scraper assembly A5 is fixedly mounted on a side wall of the machine body 1;

[0058] The scraper assembly B6 is fixedly mounted on a side wall of the machine body 1 and is located above the scraper assembly A5;

[0059] A driving mechanism for driving the scraper assembly A5 and the scraper assembly B6 to move closer to or away from the coating roller 3 is provided between the scraper assembly A5 and the scraper assembly B6.

[0060] By adopting the above technical solution, the scraper assembly A, the scraper assembly B and the driving mechanism cooperate with each other, and can be adapted and adjusted to match the width of the paper and the thickness of the pearlescent layer to be coated, without causing unnecessary waste of ink and unqualified paper. The structure is simple and easy to use.

[0061] Example 2:

[0062] This embodiment provides a coating device for pearlescent specialty paper, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0063] Furthermore, the scraper assembly A5 includes:

[0064] The support plate A51 is fixedly mounted on a side wall of the machine body 1, and the length direction of the support plate A51 is parallel to the length direction of the coating roller 3;

[0065] The scraper A52 is slidably connected to the lower end surface of the support plate A51;

[0066] A chute 53 is provided in the middle of the upper end of the support plate A51 along the width direction of the support plate A51, and the chute 53 is open at one end adjacent to the coating roller 3;

[0067] Among them, a connecting plate 54 protruding from the notch of the sliding groove 53 is fixedly installed on the upper end of the scraper A52, and a rack A matched with the driving mechanism is fixedly installed on the outer side of the connecting plate 54.

[0068] By adopting the above technical solution, the rack A is connected to the drive mechanism to drive the scraper A to extend and retract close to the coating roller, thereby controlling the thickness of the pearlescent ink on the coating roller, and then transferring the pearlescent ink to the outside of the paper conveyed by the nip roller through the coating roller.

[0069] Example 3:

[0070] This embodiment provides a coating device for pearlescent specialty paper, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0071] Furthermore, the scraper assembly B6 includes:

[0072] Support plate B61, fixedly mounted on one side wall of the body 1;

[0073] Scraper B62, located above the support plate B61;

[0074] Scraper C63, located on the right side of scraper B62;

[0075] The driven gear A64 is rotatably connected to the support plate B61 and is located between the scraper B62 and the scraper C63;

[0076] Among them, the lower ends of scraper B62 and scraper C63 are respectively fixed with sliding rods A and sliding rods B arranged along the length direction of support plate B61, and the opposite sides of sliding rods A and sliding rods B are respectively fixed with racks B and racks C engaged with driven gear A64.

[0077] By adopting the above technical solution, the sliding rod A cooperates with the sliding rod B, and when the driven gear rotates forward and backward, it can drive the scraper B and the scraper C to move closer to or away from each other, and the two sides move synchronously, which is not easy to cause deviation.

[0078] Example 4:

[0079] This embodiment provides a coating device for pearlescent specialty paper, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0080] Furthermore, the scraper assembly B6 also includes:

[0081] The limiting plates 7 are in the shape of a concave character and are provided in pairs. The two limiting plates 7 are fixedly installed on both sides of the upper end of the support plate B61.

[0082] The two limiting plates 7 correspond to the sliding rod A and the sliding rod B one by one, and the lower ends of the sliding rod A and the sliding rod B are slidably connected to the two limiting plates 7 respectively.

[0083] By adopting the above technical solution, the sliding rod A and the sliding rod B are limited respectively by two concave limiting plates, and the structure is stable and not easy to deviate.

[0084] Example 5:

[0085] This embodiment provides a coating device for pearlescent specialty paper, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0086] Furthermore, the scraper B62 and the scraper C63 are both in an inverted "L" shape, and the horizontal height of the inner upper end of the scraper C63 is higher than the horizontal height of the upper end of the scraper B62.

[0087] By adopting the above technical solution, the two scrapers will not collide or interfere with each other when moving on the support plate B.

[0088] Example 6:

[0089] This embodiment provides a coating device for pearlescent specialty paper, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0090] Furthermore, the driving mechanism includes:

[0091] The electric telescopic rod 8 is fixedly mounted on the upper end of the body 1;

[0092] The driving motor 9 is fixedly mounted on the lower end of the electric telescopic rod 8;

[0093] The driving gear A is fixedly mounted on the output shaft of the driving motor 9;

[0094] The driving gear B is fixedly mounted on the output shaft of the driving motor 9 and is located below the driving gear A;

[0095] Among them, a through hole is provided at the upper end of the driven gear A64 for the driving gear A and the driving gear B to pass through, and the lower end of the through hole is set through the lower end of the support plate B61. The inner diameter of the through hole is larger than the outer diameter of the driving gear A and the driving gear B. The inner side of the driven gear A64 is integrally formed with a tooth A that matches the driving gear A. One side of the upper end of the support plate A51 is rotatably connected to the driven gear B that meshes with the rack A. An accommodating groove is provided at the upper end of the driven gear B, and the tooth B that matches the driving gear B is integrally formed in the accommodating groove. When the driving gear A meshes with the tooth A, the driving gear B and the tooth B move away from each other. When the driving gear B meshes with the tooth B, the driving gear A and the tooth A move away from each other.

[0096] By adopting the above technical solution, through the mutual transmission and cooperation between the electric telescopic rod, the drive motor and the master and slave gears, it is achieved that one drive motor can realize the telescopic control of the three scrapers. The setting of the two driven gears prevents the driving wheel from directly contacting the racks, reducing the wear on the racks, and the movement of scrapers B and scraper C does not interfere with that of scraper A, so the use effect is good.

[0097] Example 7:

[0098] This embodiment provides a coating device for pearlescent specialty paper, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0099] Furthermore, a liquid level sensor 10 is fixedly embedded on one side of the inner edge of the storage tank 2, and a liquid filling port for connecting to an external liquid storage tank is provided on one side wall of the storage tank 2.

[0100] By adopting the above technical solution, the liquid level sensor can be set to provide feedback to the external controller when the liquid level drops, so that the liquid storage tank can be opened in time to replenish the pigment in the storage tank.

[0101] Example 8:

[0102] This embodiment provides a coating process for a coating device for pearlescent specialty paper, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0103] Furthermore, a coating process of a coating device for pearlescent specialty paper includes the following steps:

[0104] Step 1: Prepare the base paper material, then take a certain amount of pearlescent pigment, gelling agent and adhesive and mix them evenly in proportion to form a mixed pearlescent ink;

[0105] Step 2: Pour the mixed pearlescent ink into the external liquid storage tank, then open the external liquid storage tank and inject a certain amount of the mixed pearlescent ink into the storage tank;

[0106] Step 3: Measure the width of the base paper and use it as a reference to adjust the relative position of the scraper assembly B and the coating roller;

[0107] Step 4: Adjust the distance between the scraper assembly A and the coating roller;

[0108] Step 5: Turn on the coating equipment and allow the coating roller to transfer 1 to 5 times to the base paper;

[0109] Step 6: The transferred base paper is heated and dried in an external dryer, and the pearlescent paper is obtained after cooling.

[0110] By adopting the above technical solution, it is possible to adapt to different base papers passing through the nip roller, so that the base paper will not be stained with excess ink, and the use effect is good.

[0111] In addition, all technologies not mentioned in this specification belong to the prior art.

[0112] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coating device for pearlescent specialty paper, comprising a body (1), characterized in that: Also includes: A storage tank (2) is fixedly installed in the machine body and is used to store pearlescent ink; A coating roller (3) is rotatably connected to the machine body (1) and is located above the material storage tank (2) for dipping the pearlescent ink; A pressing roller (4) is rotatably connected to the machine body (1) and is located above the coating roller (3); The scraper assembly A (5) is fixedly mounted on a side wall of the machine body (1); A scraper assembly B (6) is fixedly mounted on a side wall of the machine body (1) and is located above the scraper assembly A (5); A driving mechanism for driving the scraper assembly A (5) and the scraper assembly B (6) to move closer to or away from the coating roller (3) is provided between the scraper assembly A (5) and the scraper assembly B (6); The scraper assembly A (5) includes: A support plate A (51) is fixedly mounted on a side wall of the machine body (1), and a length direction of the support plate A (51) is parallel to a length direction of the coating roller (3); A scraper A (52) is slidably connected to the lower end surface of the support plate A (51); A chute (53) is provided in the middle of the upper end of the support plate A (51) along the width direction of the support plate A (51), and the chute (53) is open at one end adjacent to the coating roller (3); A connecting plate (54) protruding from the slot of the slide groove (53) is fixedly mounted on the upper end of the scraper A (52), and a rack A cooperating with the driving mechanism is fixedly mounted on the outer side of the connecting plate (54); The scraper assembly B (6) includes: A support plate B (61) is fixedly mounted on a side wall of the machine body (1); A scraper B (62) is located above the support plate B (61); Scraper C (63), located on the right side of scraper B (62); A driven gear A (64) is rotatably connected to the upper portion of the support plate B (61) and is located between the scraper plate B (62) and the scraper plate C (63); The lower ends of the scraper B (62) and the scraper C (63) are respectively fixedly mounted with sliding rods A and B arranged along the length direction of the support plate B (61), and the opposite sides of the sliding rods A and B are respectively fixedly mounted with racks B and C meshing with the driven gear A (64); The driving mechanism includes: An electric telescopic rod (8) is fixedly mounted on the upper end of the machine body (1); A drive motor (9) is fixedly mounted on the lower end of the electric telescopic rod (8); A driving gear A is fixedly mounted on the output shaft of the driving motor (9); A driving gear B is fixedly mounted on the output shaft of the driving motor (9) and is located below the driving gear A; Among them, the upper end of the driven gear A (64) is provided with a through hole for the driving gear A and the driving gear B to pass through, and the lower end of the through hole is provided through the lower end of the support plate B (61). The inner diameter of the through hole is larger than the outer diameter of the driving gear A and the driving gear B. The inner side of the driven gear A (64) is integrally formed with a tooth A that matches the driving gear A. One side of the upper end of the support plate A (51) is rotatably connected to the driven gear B that meshes with the rack A. The upper end of the driven gear B is provided with a receiving groove, and the receiving groove is integrally formed with a tooth B that matches the driving gear B. When the driving gear A meshes with the tooth A, the driving gear B and the tooth B move away from each other. When the driving gear B meshes with the tooth B, the driving gear A and the tooth A move away from each other.

2. The pearlescent specialty paper coating equipment according to claim 1, characterized in that: The scraper assembly B (6) further comprises: The limiting plates (7) are in a concave shape and are provided with two. The two limiting plates (7) are fixedly mounted on both sides of the upper end of the support plate B (61). The two limiting plates (7) correspond to the sliding rod A and the sliding rod B one by one. The lower ends of the sliding rod A and the sliding rod B are respectively slidably connected in the two limiting plates (7).

3. The pearlescent specialty paper coating equipment according to claim 2, characterized in that: The scraper B (62) and the scraper C (63) are both in an inverted "L" shape, and the horizontal height of the inner upper end of the scraper C (63) is higher than the horizontal height of the upper end of the scraper B (62).

4. The pearlescent specialty paper coating equipment according to claim 3, characterized in that: A liquid level sensor (10) is fixedly embedded on one side of the inner edge of the storage tank (2), and a liquid injection port for connecting to an external liquid storage tank is provided on one side wall of the storage tank (2).

5. A coating process for the coating equipment for pearlescent specialty paper according to claim 4, characterized in that: The steps include: Step 1: Prepare the base paper material, then take a certain amount of pearlescent pigment, gelling agent and adhesive and mix them evenly in proportion to form a mixed pearlescent ink; Step 2: Pour the mixed pearlescent ink into the external liquid storage tank, then open the external liquid storage tank and inject a certain amount of the mixed pearlescent ink into the storage tank; Step 3: Measure the width of the base paper and use the width as a reference to adjust the relative position of the scraper assembly B and the coating roller; Step 4: Adjust the distance between the scraper assembly A and the paint roller; Step 5: Turn on the coating equipment and let the coating roller transfer the base paper 1 to 5 times; Step 6: The transferred base paper is heated and dried in an external dryer, and the pearlescent paper is obtained after cooling.

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