Curtain fabric printing equipment

Abstract

The utility model discloses curtain fabric printing equipment. The curtain fabric printing equipment comprises a rack, the pigment tank is arranged at the lower part of the rack; the smearing roller is rotatably arranged on the rack, and the lower edge of the smearing roller can be immersed into the pigment groove; the scraping plate spans the rack, and the edge of one side of the scraping plate is close to the surface of the smearing roller; the transfer printing roller set is rotatably arranged above the smearing roller and is provided with letterpress printing capable of adjusting the radial extending height; and the pressing roller is rotatably arranged above the transfer printing roller set so as to press the curtain fabric passing through the space between the pressing roller and the transfer printing roller set on the letterpress printing of the transfer printing roller set. According to the scheme, the extending height of the letterpress printing on the transfer printing roller set can be adjusted through the letterpress printing capable of stretching out and drawing back in the radial direction, the thickness change of curtain fabric is effectively adapted, the letterpress printing can still be pressed on the curtain fabric at proper pressure after the thickness of the curtain fabric changes, and the problem that an existing transfer printing roller is prone to generating printing, and the printing quality is poor is solved. The pattern printing is not clear; and irreversible gravure is easy to press.

Description

Technical Field

[0001] The utility model relates to a printing device, in particular to a curtain fabric printing device. Background Art

[0002] Curtains are common decorations in homes. Their main functions are to adjust indoor light, protect privacy, decorate space, and block outside noise and dust. They are usually made of cloth, yarn or other materials, hung on windows, and can be opened, closed or adjusted as needed.

[0003] Curtain fabrics are mainly knitted fabrics and woven fabrics, among which woven fabrics are denser and have higher weaving efficiency. However, due to the limitation of weaving method, the patterns that woven curtain fabrics can present are relatively simple compared with knitted curtain fabrics, and the presentation effect is relatively simple. In order to improve the aesthetics of woven curtain fabrics, patterns are often printed on curtain fabrics. Existing printing equipment still prints patterns on the surface of curtain fabrics by transferring patterns on transfer rollers. However, the protrusion of the pattern on the surface of the existing transfer roller is fixed and cannot be adjusted. When printing curtain fabrics of different thicknesses, the following problems will occur: 1. If the fabric is too thin, the protrusion height of the embossed print on the surface of the transfer roller is not enough, resulting in insufficient pressure on the curtain fabric during transfer, and the pigment on the embossed surface cannot be effectively transferred to the surface of the curtain fabric, and the pattern is printed too light or incomplete. 2. If the fabric is too thick, the embossed height on the transfer roller surface is too high. When the embossed surface contacts the curtain fabric, the pressure exerted on the curtain fabric is too great, resulting in irreversible grooves on the surface of the curtain fabric, affecting the smoothness of the curtain fabric. Therefore, a curtain fabric printing device that can flexibly adjust the degree of pattern protrusion on the transfer roller according to the fabric conditions is very much needed. Utility Model Content

[0004] The utility model aims to provide a curtain fabric printing device so as to flexibly adjust the thickness of the transfer roller according to the thickness of the curtain fabric.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A curtain fabric printing device, comprising

[0007] frame;

[0008] A pigment tank is arranged at the lower part of the frame;

[0009] A coating roller is rotatably arranged on the frame, and the lower edge of the coating roller can be immersed in the paint tank;

[0010] The scraper is arranged across the frame, and one edge of the scraper is arranged close to the surface of the coating roller;

[0011] The transfer roller group is rotatably arranged above the smear roller and has a convex printing capable of adjusting the radial extension height;

[0012] The pressing roller is rotatably arranged above the transfer roller group to press the curtain fabric passing between the pressing roller and the transfer roller group onto the embossed print of the transfer roller group.

[0013] Preferably, the transfer roller group includes a roller sleeve, the embossment can be slidably inserted on the roller sleeve along the radial direction of the roller sleeve, the inner end of the embossment is connected to a first guide block, the first guide block has a triangular cross-section and an inclined surface facing the axis of the roller sleeve, and the distance to the axis gradually increases from one side to the other side; a drive shaft is also coaxially arranged in the roller sleeve, and a second guide block corresponding to the first guide block is arranged on the surface of the drive shaft, and the second guide block has a triangular cross-section opposite to the first guide block, and the second guide block is smoothly fitted with the inclined surface of the first guide block, and the two ends of the roller sleeve are also screwed with a through cover, and the two ends of the drive shaft are rotatably inserted in the through cover, and a locking bolt is screwed on the through cover, and the end of the locking bolt passes through the through cover and abuts against the surface of the drive shaft.

[0014] Preferably, a hexagonal groove is coaxially provided on the end surface of the drive shaft.

[0015] Preferably, a scale is provided on the end surface of the through cover, and a radially extending indicator mark is provided on the end surface of the drive shaft, and the indicator mark points to the scale correspondingly.

[0016] Compared with the prior art, the beneficial effect of the utility model is that the present solution can meet the printing requirements of curtain fabrics of various thicknesses by setting a relief print with flexible adjustable protrusion height, thereby avoiding the problem of poor transfer effect when the curtain fabric becomes thinner and thicker, and easy to produce irreversible gravure when the curtain fabric becomes thicker. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is an exploded view of the transfer roller assembly of the utility model;

[0019] Figure 3 is a longitudinal sectional view of a transfer roller assembly;

[0020] Figure 4 is a transverse cross-sectional view of a transfer roller assembly;

[0021] Figure 5 It is an end view of the transfer roller group.

[0022] Figure numerals: 100. Frame 200. Pigment tank 300. Scraper 400. Coating roller 500. Transfer roller set 510. Roller sleeve 520. Embossing 530. Through cover 531. Scale 540. Locking bolt 550. Drive shaft 551. Hexagonal groove 552. Indication mark 560. First guide block 570. Second guide block 600. Pressing roller. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] A curtain fabric printing device is used to print patterns on curtain fabrics. Specifically, Figure 1 As shown, it includes a frame 100, a rubber coating roller 400 is rotatably mounted at the lower part of the frame, a pigment tank 200 is arranged below the coating roller, and the lower part of the coating roller is immersed in the pigment in the pigment tank to realize the dipping of the pigment during the rotation process. At the same time, in order to make the pigment evenly distributed on the surface of the coating roller, a scraper 300 is also straddled on the frame, and the front edge of the scraper is close to the surface of the coating roller to scrape off the excess pigment on the surface of the coating roller and leave the pigment of the required thickness.

[0027] At the same time, a transfer roller group 500 is rotatably connected to the frame above the smear roller, and the embossed surface of the transfer roller group contacts the surface of the smear roller, so that the pigment on the smear roller can be evenly transferred to the embossed surface, completing the circulation replenishment of the pigment on the embossed surface during the transfer process. Figure 1 As shown, a pressure roller 600 rotatably connected to the frame 100 is arranged above the transfer roller group 500 in parallel. The pressure roller and the smear roller below are made of rubber material, so that the pressure roller and the smear roller can adapt to the change of the outer diameter of the transfer roller group due to the change of the embossing extension degree, ensuring that the smear roller 400 and the pressure roller 600 can always be connected to the transfer roller group with pressure.

[0028] Compared with the traditional printing equipment, the purpose of this scheme is to solve the problem that the curtain fabric printing effect is poor or the transfer roller group presses irreversible gravure on the surface of the curtain fabric due to the change of the curtain fabric thickness during the printing process. Specifically, the protruding height of the embossing 520 in the transfer roller group in this scheme can be flexibly adjusted according to the thickness of the curtain fabric.

[0029] Specifically, to achieve the above functions, Figures 2 to 4 As shown, the transfer roller set 500 includes a steel hollow roller sleeve 510, in which the embossed printing is inserted into the roller sleeve in a sliding manner. It should be noted that in order to facilitate the synchronous adjustment of the extension height of the embossed printing, the embossed printing slidingly inserted into the roller sleeve is arranged along the radial direction of the roller sleeve. In addition, a first guide block 560 is also connected to the inner end of the embossed printing. It should be noted that the first guide block extends along the axial direction of the roller sleeve and has a triangular cross-section. Figure 4 The first guide block is shown facing the inner side of the roller sleeve axis, and its distance to the roller sleeve axis gradually increases from one side to the other side.

[0030] like Figure 3 As shown, a drive shaft 550 is coaxially inserted inside the roller sleeve, and a plurality of second guide blocks 570 are arranged on the outer surface of the drive shaft. Figure 4 As shown, the cross section of the second guide block is a triangle opposite to the triangle of the first guide block, and fits with the inclined surface of the first guide block, so that when the drive shaft is driven externally, the second guide block can drive the first guide block to move along the radial direction of the roller sleeve. It should also be noted that in order to prevent the convex print from being thrown off due to the centrifugal force during the rotation of the transfer roller group, the first guide block and the second guide block are magnetic materials that attract each other.

[0031] In addition, it should be noted that the drive shaft is set in the roller sleeve. If the two ends are not restrained, it is inevitable that circumferential movement will occur. Moreover, if the shaft end of the drive shaft is used as the connecting end and plugged into the frame, relative rotation between the drive shaft and the roller sleeve is inevitable, affecting the stability of the embossing for adjusting the extension height.

[0032] For this reason, Figure 2 , Figure 3 As shown, two through covers 530 are respectively provided at both ends of the roller sleeve. After the two through covers are fixed on the roller sleeve, they smoothly abut against the end face of the drive shaft body to prevent the drive shaft from axial movement. At the same time, the two ends of the drive shaft can be rotatably inserted in the through covers to facilitate the subsequent adjustment of the relative position between the drive shaft and the roller sleeve. Specifically, a hexagonal groove 551 for inserting an Allen wrench can be opened at the end of the drive shaft. When it is necessary to drive the drive shaft and the roller sleeve to rotate relative to each other, the Allen wrench is inserted into the hexagonal groove and the Allen wrench is turned. In order to avoid relative rotation between the drive shaft and the roller sleeve during transfer. As Figure 3 As shown, at least one locking bolt 540 is screwed on the through cover, and the end of the locking bolt penetrates the through cover and abuts against the surface of the drive shaft to tighten the drive shaft by friction. In addition, it should be noted that the part of the through cover plugging the drive shaft is cylindrical so that it can be rotatably plugged into the frame 100 to achieve a rotatable connection between the transfer roller assembly and the frame.

[0033] It should also be noted that in order to more accurately grasp the height of the embossed print corresponding to the rotation angle of the drive shaft during adjustment, such as Figure 5 As shown, a scale is provided on the end face of the through cover 530. The scale is arranged in a spoke-like manner, and the scale corresponds to the rotation angle. The edge of the scale is also provided with a embossed extension height after the drive shaft is rotated to the corresponding scale, so as to facilitate the corresponding identification of workers. At the same time, an indicator mark 552 is provided on the end face of the drive shaft, and the indicator mark corresponds to the setting of the scale.

[0034] Working principle: When the thickness of the curtain fabric to be printed changes, the protruding height of the embossing in the transfer roller group needs to be adjusted accordingly. Specifically, if the thickness of the curtain fabric decreases, the staff will first loosen the locking bolt on the through cover, then insert an Allen wrench into the hexagonal groove, and rotate the drive shaft counterclockwise. When the drive shaft is rotated, the outer roller sleeve is fixed with the help of others to prevent it from following the rotation. As the drive shaft rotates, the first guide block and the second guide block that are fitted together slide relative to each other, thereby driving the embossing connected to the first guide block to radially extend out of the roller sleeve, and the protruding height of the embossing increases, and the contact pressure with the curtain fabric with reduced thickness returns to the pressure required for printing. When the protruding height of the embossing is adjusted, tighten the locking bolt on the through cover again to prevent the drive shaft and the roller sleeve from rotating relative to each other during transfer. At this point, the protruding height of the embossing is adjusted.

[0035] When the curtain fabric is thicker, you only need to rotate the drive shaft in reverse.

[0036] 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 curtain fabric printing device, characterized in that: include Rack(100); A pigment tank (200) is arranged at the lower part of the frame (100); A coating roller (400) is rotatably disposed on the frame (100), and a lower edge of the coating roller (400) can be immersed in the paint tank (200); The scraper (300) is straddled on the frame (100), and one edge of the scraper is disposed close to the surface of the coating roller (400); A transfer roller group (500) is rotatably disposed above the smear roller (400) and has a relief (520) capable of adjusting a radial extension height; The pressing roller (600) is rotatably arranged above the transfer roller group (500) so as to press the curtain fabric passing between the pressing roller (600) and the transfer roller group (500) onto the embossing (520) of the transfer roller group (500).

2. The curtain fabric printing device according to claim 1, characterized in that: The transfer roller group (500) comprises a roller sleeve (510), the embossing (520) can be slidably inserted on the roller sleeve (510) in a radially movable manner, the inner end of the embossing (520) is connected to a first guide block (560), the first guide block (560) has a triangular cross-section and an inclined surface facing the axis of the roller sleeve (510), and the distance to the axis gradually increases from one side to the other side; a driving shaft (550) is also coaxially arranged in the roller sleeve (510), and the surface of the driving shaft (550) is provided with an absorption surface corresponding to the first guide block (560). The roller sleeve (510) is provided with a second guide block (570) which has a triangular cross-section opposite to that of the first guide block (560), and the second guide block (570) and the inclined surface of the first guide block (560) are smoothly fitted, the two ends of the roller sleeve (510) are also screwed to the through cover (530), the two ends of the drive shaft (550) are rotatably inserted in the through cover (530), the through cover (530) is screwed with a locking bolt (540), and the end of the locking bolt (540) passes through the through cover (530) and abuts against the surface of the drive shaft (550).

3. The curtain fabric printing device according to claim 2, characterized in that: A hexagonal groove (551) is coaxially formed on the end surface of the driving shaft (550).

4. The curtain fabric printing device according to claim 3, characterized in that: A scale (531) is provided on the end surface of the through cover (530), and a radially extending indication mark (552) is provided on the end surface of the drive shaft (550), wherein the indication mark (552) points to the scale (531) accordingly.

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