Printing and dyeing device and method for environment-friendly canvas production

Abstract

The invention relates to the technical field of printing and dyeing, in particular to a printing and dyeing device and method for environment-friendly canvas production. Comprising a shell, the shell is filled with a printing and dyeing medium, the shell is rotationally connected with guide rollers arranged at intervals, and the guide rollers are used for guiding canvas; the hydraulic push rod is installed on the shell, and the telescopic end of the hydraulic push rod is fixedly connected with a movable frame; and the two tensioning mechanisms are arranged in a mirror image mode, are arranged on the adjacent moving parts correspondingly and are used for changing the tensioning state of the canvas. The telescopic end of the hydraulic push rod drives the moving frame to reciprocate, so that canvas reciprocates and extrudes a printing and dyeing medium (the canvas and the printing and dyeing medium extrude each other), the printing and dyeing medium has the tendency of passing through the canvas, and the situation that the canvas is printed and dyed by gradual immersion in a conventional immersion mode is prevented; the inner and outer layers of the canvas have different printing and dyeing states, and the printing and dyeing effect is poor.

Description

Technical Field

[0001] The present invention relates to the technical field of printing and dyeing, and in particular to a printing and dyeing device and method for producing environmental protection canvas. Background Art

[0002] Canvas is a common thick fabric, mainly made of raw materials such as cotton, linen, and chemical fibers. Canvas has the characteristics of durability and not being easily broken, and is widely used in fields such as clothing, home textiles, and decoration. The original color canvas itself has a single color and cannot meet the needs of consumers for product colors and patterns. Through the printing and dyeing process, rich and diverse colors can be given to the canvas, increasing the added value of the product. Printing and dyeing can also improve some properties of the canvas, such as softness and washing fastness.

[0003] Printing and dyeing is a processing technology that leaves colors on the surface of the canvas through chemical or physical means. Most of the existing printing and dyeing processes only immerse (soak) the canvas in the printing and dyeing medium, and the printing and dyeing medium dyes the canvas through free diffusion. That is, it is difficult for such printing and dyeing methods to make the printing and dyeing medium penetrate deep into the canvas fibers and can only stay on the surface of the canvas. Moreover, due to the thick texture of the canvas, the printing and dyeing medium can only penetrate slowly. That is, there is a difference in the contact time between the printing and dyeing medium and the inner and outer layer fibers of the canvas, so the printing and dyeing degrees of the inner and outer layers of the canvas are not the same. That is, the existing printing and dyeing devices have problems of incomplete and uneven printing and dyeing. Summary of the Invention

[0004] In order to overcome the shortcomings mentioned in the above technical background, the present invention provides a printing and dyeing device and method for producing environmental protection canvas.

[0005] The technical solution of the present invention is: A printing and dyeing device for producing environmental protection canvas, including: a housing, the housing is filled with a printing and dyeing medium, the housing is rotatably connected with guide rollers arranged at intervals, and the guide rollers are used for guiding the canvas; moving members, two of which are arranged in a mirror image, both are slidably connected to the housing, the moving members are slidably connected with mounting blocks arranged in a mirror image, and a moving roller is rotatably connected between adjacent mounting blocks on different moving members; a hydraulic push rod, installed on the housing, the telescopic end of the hydraulic push rod is fixedly connected with a moving frame, and the moving frame is fixedly connected with the moving members; tensioning mechanisms, two of which are arranged in a mirror image, are respectively arranged on adjacent moving members and are used for changing the tension state of the canvas.

[0006] Preferably, the moving members are arranged obliquely, so as to obliquely extrude the printing and dyeing medium in the housing when the canvas moves.

[0007] Preferably, the tensioning mechanism includes: a sliding plate slidably connected to the adjacent moving member. The moving member is fixedly connected with a first elastic element. The sliding plate is used for extruding the first elastic element, and the first elastic element is used for extruding the mounting block. A second elastic element is arranged between the mounting block and the adjacent moving member; a first limiting protrusion fixedly connected to the sliding plate. The housing is provided with a first limiting groove for limiting the first limiting protrusion.

[0008] Preferably, the first limiting groove is a folded groove for enabling the sliding plate and the adjacent moving member to slide relatively.

[0009] Preferably, it further includes: two drainage mechanisms arranged at intervals, both of which are arranged in the housing for guiding the printing medium in the housing. The drainage mechanism includes: a mounting frame arranged in the housing. The mounting frame is fixedly connected with first plates arranged at intervals, and the first plates are wavy.

[0010] Preferably, the wave crests on the adjacent first plates correspond to each other for enabling the printing media guided by them to impact each other. The first plates are fixedly connected with second plates arranged at intervals.

[0011] Preferably, it further includes: moving plates arranged in a mirror image, both of which are fixedly connected to the moving frame. The mounting frame is slidably connected with the housing. The moving plates are provided with second limiting grooves, and the mounting frame is fixedly connected with second limiting protrusions. The second limiting grooves are used for limiting the second limiting protrusions.

[0012] Preferably, the second limiting groove is a wavy groove for enabling the mounting frame and the housing to slide relatively.

[0013] Preferably, it further includes: a processing shell fixedly connected to the housing. The housing is fixedly connected with a pipeline, and the pipeline communicates with the processing shell; two squeezing rollers arranged in a mirror image, both of which are rotatably connected in the processing shell and the two squeezing rollers squeeze each other; two scraping rods arranged at intervals, both of which are fixedly connected in the processing shell for scraping the squeezing rollers. The processing shell is provided with a first notch and a second notch for passing the canvas.

[0014] A printing method for environmentally friendly canvas production, based on the above-mentioned printing device for environmentally friendly canvas production, includes the following steps: S1: The telescopic end of the hydraulic push rod drives the moving member to move through the moving frame. The moving member drives the moving roller to move together through the mounting block. The moving roller drives the adjacent areas of the canvas to move together, so that the canvas and the printing medium in the housing are mutually extruded, making the printing medium have a tendency to "pass through" the canvas; S2: When the inclined canvas moves, it squeezes the printing medium in the adjacent area, causing the printing medium to move within the housing, so that the printing medium comes into uniform contact with the canvas; S3: Under the limiting action of the first limiting groove, the first limiting protrusion moves relative to the housing, causing the sliding plate to squeeze the first elastic element. Subsequently, the deformed first elastic element squeezes the adjacent mounting block, causing the mounting block to slide relative to the adjacent moving part, thereby changing the force exerted by the moving roller on the canvas, that is, changing the tension of the canvas, which facilitates the adhesion and penetration of the printing medium; S4: The first plate and the second plate guide the moving printing medium, causing the printing medium to impact each other within the housing, thereby increasing the diversity of the movement of the printing medium and making the printing medium evenly distributed within the housing; S5: The squeezing roller squeezes the canvas to remove the excess printing medium on the canvas. Then, the scraping rod scrapes the printing medium adhered to the squeezing roller. Steam is introduced into the processing housing through a pipeline to fix the color of the canvas. After the printing work is completed, the machine can be shut down.

[0015] Compared with the prior art, the present invention has at least the following advantages: The telescopic end of the hydraulic push rod drives the moving frame to reciprocate in the present invention, so that the canvas reciprocates and squeezes the printing medium (the two squeeze each other), so that the printing medium has a tendency to "penetrate" the canvas, thereby preventing the conventional "soaking" method from relying on gradual immersion to print the canvas, resulting in different printing states of the inner and outer layers of the canvas and poor printing effect; The first limiting groove is used to limit the first limiting protrusion, so that the sliding plate slides relative to the adjacent moving part, so that the mounting block slides relative to the moving part, thereby changing the tension state of the moving roller on the canvas. In this way, it is beneficial to the adhesion and penetration of the printing medium, thereby improving the saturation and vividness of printing. At the same time, the printing medium "repeatedly" immerses the canvas, so that the printing medium is evenly distributed on the canvas, thereby improving the printing quality; The first plate and the second plate guide the printing medium, so that the printing medium moves in a "wavy" curve. At the same time, when the printing medium moves from the "valley" to the "peak" of the first plate, the printing medium impacts each other, thereby increasing the diversity of the movement of the printing medium, improving the uniformity of the distribution of the printing medium in the housing, improving the uniform heating of the printing medium, and further improving the printing quality of the canvas. Description of the Drawings

[0016] Figure 1 is a three-dimensional structure schematic diagram of the whole of the present invention; Figure 2 is a three-dimensional structure sectional view of the housing, guiding roller and moving roller of the present invention; Figure 3 is a three-dimensional structure schematic diagram when the sliding plate of the present invention squeezes the first elastic element; Figure 4 This is an exploded perspective view of the moving part of the present invention and the parts thereon; Figure 5 This is a perspective view of the mounting bracket and the first plate of the present invention; Figure 6 This is an exploded perspective view of the mounting bracket of the present invention and the parts thereon; Figure 7 This is a sectional view of the processing shell of the present invention; Figure 8 This is an exploded perspective view of the processing shell of the present invention and the parts thereon.

[0017] Wherein: 101 - canvas, 1 - housing, 2 - guide roller, 3 - moving part, 4 - mounting block, 5 - moving roller, 6 - hydraulic push rod, 7 - moving frame, 801 - sliding plate, 802 - first elastic element, 803 - second elastic element, 804 - first limiting projection, 805 - first limiting groove, 901 - mounting bracket, 902 - first plate, 903 - second plate, 1001 - moving plate, 1002 - second limiting groove, 1003 - second limiting projection, 1101 - processing shell, 1102 - pipeline, 1103 - squeezing roller, 1104 - scraping rod, 1105 - first notch, 1106 - second notch. Detailed Description of the Invention

[0018] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, in which the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0019] As Figures 1-4 shown, in an embodiment of the present invention, a printing and dyeing device for environmentally friendly canvas production is proposed to solve the problem that in the existing printing and dyeing technology, the canvas only "soaks through" in the printing and dyeing medium, and it is difficult for the canvas to come into full contact with the printing and dyeing medium, resulting in incomplete and uneven printing and dyeing. It includes: a housing 1 filled with a printing and dyeing medium, the housing 1 is rotatably connected with guide rollers 2 arranged at intervals for guiding the canvas 101; moving parts 3, two of which are arranged in a mirror image and are both slidably connected to the housing 1, the moving parts 3 are arranged obliquely for obliquely squeezing the printing and dyeing medium in the housing 1 when the canvas 101 moves, the moving parts 3 are slidably connected with mounting blocks 4 arranged in a mirror image, and moving rollers 5 are rotatably connected between adjacent mounting blocks 4 on different moving parts 3; a hydraulic push rod 6 installed on the housing 1, the telescopic end of the hydraulic push rod 6 is fixedly connected with a moving frame 7, and the moving frame 7 is fixedly connected with the moving parts 3; tensioning mechanisms, two of which are arranged in a mirror image and are respectively arranged on adjacent moving parts 3 for changing the tension state of the canvas 101.

[0020] In the above solution, a heating device (which is a prior art and not shown in the drawings) is provided inside the housing 1 to heat the printing medium therein, so as to promote the better diffusion of the printing medium into the interior of the canvas 101. A unwinding device and a winding device are respectively provided on the left and right sides of the housing 1 to unwind and wind the canvas 101. The number of guide rollers 2 is five, which are respectively located on the left and right sides of the housing 1. The moving roller 5 is used to change the position of the canvas 101 in the housing 1 in adjacent areas (during the process, the printing medium and the canvas 101 are mutually extruded, so that the printing medium in the housing 1 passes through the canvas 101). The hydraulic push rod 6 is connected to an external hydraulic system. By using the unwinding device and the winding device, the canvas 101 is moved from left to right. During the process, the canvas 101 is printed by the printing medium in the housing 1. The telescopic end of the hydraulic push rod 6 drives the moving frame 7 to move upward. The moving frame 7 drives the moving member 3 to move upward together. The moving member 3 drives the moving roller 5 to move upward together through the mounting block 4. The moving roller 5 drives the adjacent area of the (tilted) canvas 101 to move upward together. The canvas 101 and the printing medium are mutually extruded, so that the printing medium has a tendency to "pass through" the canvas 101, thereby preventing the canvas 101 from being printed by the conventional "soaking" method that relies on gradual immersion, resulting in inconsistent printing states of the inner and outer layers of the canvas 101 and poor printing effects.

[0021] The upwardly moving (tilted) canvas 101 also drives the printing medium in the adjacent area to move to the left, so that the printing medium moves in the housing 1, thereby being evenly heated, avoiding the temperature drop caused by the long-term contact between the printing medium in the same area of the housing 1 and the canvas 101, resulting in inconsistent printing degrees of the canvas 101 in the same batch and color difference. After the moving member 3 moves upward to the limit position, the telescopic end of the hydraulic push rod 6 drives the moving frame 7 to move downward, so that the moving roller 5 drives the adjacent area of the (tilted) canvas 101 to move downward together, thereby changing the extrusion direction of the canvas 101 on the printing medium and changing the movement direction of the printing medium in the housing 1, improving the movement diversity of the printing medium, and further stabilizing the temperature of the printing medium and improving the printing effect on the canvas 101. The tensioning mechanism enables the moving member 3 to change the tension of the canvas 101 during the up and down movement, thereby changing the immersion state of the printing medium and improving the printing effect.

[0022] Such as Figure 3 and Figure 4As shown in the figure, the tensioning mechanism includes: a sliding plate 801, which is slidably connected to the adjacent moving part 3. The moving part 3 is fixedly connected with a first elastic element 802. The sliding plate 801 is used to squeeze the first elastic element 802, and the first elastic element 802 is used to squeeze the mounting block 4. A second elastic element 803 is arranged between the mounting block 4 and the adjacent moving part 3; a first limiting protrusion 804, which is fixedly connected to the sliding plate 801. The housing 1 is provided with a first limiting groove 805, and the first limiting groove 805 is used to limit the first limiting protrusion 804. The first limiting groove 805 is a folded groove, which is used to enable the sliding plate 801 and the adjacent moving part 3 to have relative sliding.

[0023] In the above solution, the first elastic element 802 is made of elastic rubber, and the middle part of the first elastic element 802 is fixedly connected to the adjacent moving part 3 (that is, a certain relative movement can occur between the two). The second elastic element 803 is made of elastic rubber and is used to stabilize the position of the adjacent mounting block 4. The first limiting groove 805 is a vertical groove, and the middle part of the first limiting groove 805 approaches the middle part of the housing 1. During the upward movement of the moving part 3, the moving part 3 drives the sliding plate 801, the first elastic element 802 and the second elastic element 803 to move upward together. The sliding plate 801 drives the first limiting protrusion 804 to move upward together. The first limiting protrusion 804 starts to slide in the first limiting groove 805. As the moving part 3 moves upward, the two first limiting protrusions 804 are respectively limited by the adjacent first limiting grooves 805 and start to move towards each other. The first limiting protrusion 804 drives the adjacent sliding plate 801 to move together. The sliding plate 801 starts to squeeze the adjacent first elastic element 802. Since the moving part 3 blocks the middle part of the first elastic element 802, the first elastic element 802 deforms and elongates after being squeezed by the sliding plate 801, that is, the first elastic element 802 deforms and squeezes the adjacent mounting block 4. The two mounting blocks 4 on the same moving part 3 start to move away from each other and compress the adjacent second elastic element 803. The mounting block 4 drives the adjacent moving roller 5 to move together. The two moving rollers 5 gradually tension the adjacent areas of the canvas 101, so that the surface of the canvas 101 is flat, which is beneficial to the adhesion and penetration of the printing medium, thereby improving the saturation and vividness of printing.

[0024] After the first limiting protrusion 804 moves upward through the "turning point" of the first limiting groove 805, the two first limiting protrusions 804 start to move away from each other under the limitation of the adjacent first limiting grooves 805 respectively, that is, the moving roller 5 gradually loses the tension on the canvas 101, so as to reduce the tension of the canvas 101, thereby alleviating the thermal expansion and contraction of the canvas 101 during the printing process and avoiding the situation of local deformation or damage. At the same time, by using the change of the tension of the canvas 101, the printing medium in the canvas 101 is "squeezed out" when the canvas 101 is tensioned and reprinted when it is loose, so that the printing medium is evenly distributed on the canvas 101, thereby improving the printing quality.

[0025] As Figure 5 and Figure 6 shown, it further includes: a drainage mechanism, which are two arranged at intervals and are both arranged in the housing 1 for guiding the printing medium in the housing 1. The drainage mechanism includes: a mounting frame 901 arranged in the housing 1. The mounting frame 901 is fixedly connected with a first plate 902 arranged at intervals. The first plate 902 is wavy, and the wave crests on adjacent first plates 902 correspond to each other, for making the printing medium guided by it impact each other. The first plate 902 is fixedly connected with a second plate 903 arranged at intervals.

[0026] In the above solution, there are several first plates 902, and the first plates 902 are perpendicular to the canvas 101. The "wave crests" between adjacent first plates 902 face each other. During the process of the moving member 3 moving upward (during the process of the canvas 101 squeezing the printing medium), the squeezed printing medium moves leftward past the first plate 902 and the second plate 903. During this process, the first plate 902 and the second plate 903 guide the printing medium, making the printing medium move in a "wavy" curve. At the same time, when the printing medium moves from the "wave trough" to the "wave crest" of the first plate 902, the printing medium impacts each other, thereby increasing the diversity of the movement of the printing medium, improving the uniformity of the distribution of the printing medium in the housing 1, improving the uniform heating of the printing medium, and further improving the printing quality of the canvas 101.

[0027] As Figure 5 and Figure 6 shown, it further includes: moving plates 1001 arranged in a mirror image, which are both fixedly connected to the moving frame 7. The mounting frame 901 is slidably connected to the housing 1. The moving plate 1001 is provided with a second limiting groove 1002. The mounting frame 901 is fixedly connected with a second limiting protrusion 1003. The second limiting groove 1002 is used for limiting the second limiting protrusion 1003. The second limiting groove 1002 is a wavy groove for making the mounting frame 901 and the housing 1 slide relatively.

[0028] In the above solution, there are multiple turning points on the second limiting groove 1002. During the process of the moving frame 7 moving upward, the moving frame 7 drives the moving plate 1001 to move upward together. The second limiting groove 1002 starts to squeeze the adjacent second limiting protrusion 1003. The second limiting protrusion 1003 drives the adjacent mounting frame 901 to start moving back and forth. The mounting frame 901 and the housing 1 slide relatively. The mounting frame 901 drives the first plate 902 to move together, thereby disturbing the printing medium in the adjacent area, making the printing medium "shake" back and forth, increasing the diversity of the movement of the printing medium, further improving its uniform heating, and further improving the printing quality of the canvas 101.

[0029] As Figure 1 、Figure 7 and Figure 8 As shown in Figure 8 , it further includes: a processing shell 1101, fixedly connected to the shell 1. The shell 1 is fixedly connected with a pipeline 1102, and the pipeline 1102 is communicated with the processing shell 1101; two squeezing rollers 1103 which are arranged in mirror image, both rotatably connected inside the processing shell 1101, and the two squeezing rollers 1103 squeeze each other; two scraping rods 1104 which are arranged at intervals, both fixedly connected inside the processing shell 1101, and used for scraping the squeezing rollers 1103. The processing shell 1101 is provided with a first notch 1105 and a second notch 1106 for passing the canvas 101.

[0030] In the above solution, the lower side inside the processing shell 1101 is set as an inclined surface to facilitate the discharge of the printing medium. The pipeline 1102 is connected to an external steam manufacturing device. The scraping rods 1104 are arranged obliquely to facilitate the falling off of the printing medium from the squeezing rollers 1103. The first notch 1105 is located in the middle of the processing shell 1101 and is used for accumulating the steam inside the processing shell 1101 to maintain the temperature stability inside the processing shell 1101. The second notch 1106 is located at the lower part of the processing shell 1101. During the printing process, the moving canvas 101 drives the squeezing rollers 1103 to rotate, and the two squeezing rollers 1103 that squeeze each other are used to squeeze the adjacent area of the canvas 101, so as to squeeze out the excess printing on the canvas 101, thereby reducing the difficulty of subsequent water washing and drying, improving the production efficiency of the canvas 101, reducing the consumption of the printing medium, reducing costs. During the process, the scraping rods 1104 continuously scrape the outer sides of the adjacent squeezing rollers 1103 to ensure the cleanliness of the outer sides of the squeezing rollers 1103 and prevent the printing medium adhered to the outer sides of the squeezing rollers 1103 from adhering to the canvas 101 again.

[0031] Steam is introduced into the processing shell 1101 through the pipeline 1102 to fix the color of the canvas 101, thereby preventing the subsequent canvas 101 from fading excessively during the subsequent water washing process and reducing the printing quality. At the same time, since the first notch 1105 is located in the middle of the processing shell 1101, when the steam enters the processing shell 1101, the high-temperature steam first moves upward and then accumulates inside the processing shell 1101. As the color fixing time increases and new high-temperature steam continuously enters the processing shell 1101, the new high-temperature steam continues to move upward, thereby squeezing the steam with a slightly lower temperature downward and discharging it from the first notch 1105, so as to make full use of the high-temperature steam and save costs on the premise of ensuring effective color fixing of the canvas 101.

[0032] As Figures 1-8 shown, as an embodiment of the present invention, a printing method for environmentally friendly canvas production is proposed. Based on the above-mentioned printing device for environmentally friendly canvas production, it includes the following steps: S1: The telescopic end of the hydraulic push rod 6 drives the moving member 3 to move through the moving frame 7. The moving member 3 drives the moving roller 5 to move together through the mounting block 4. The moving roller 5 drives the adjacent area of the canvas 101 to move together, so that the canvas 101 and the printing and dyeing medium in the housing 1 are mutually extruded, making the printing and dyeing medium have a tendency to "penetrate" the canvas 101. S2: The inclined canvas 101 extrudes the adjacent printing and dyeing medium when moving, causing the printing and dyeing medium to move in the housing 1, so that the printing and dyeing medium is in uniform contact with the canvas 101. S3: Under the limiting action of the first limiting groove 805, the first limiting protrusion 804 moves relative to the housing 1, causing the sliding plate 801 to squeeze the first elastic element 802. Subsequently, the deformed first elastic element 802 squeezes the adjacent mounting block 4, causing the mounting block 4 to slide relative to the adjacent moving member 3, thereby changing the force exerted by the moving roller 5 on the canvas 101, that is, changing the tension of the canvas 101, which is convenient for the adhesion and penetration of the printing and dyeing medium. S4: The first plate 902 and the second plate 903 guide the moving printing and dyeing medium, causing the printing and dyeing medium to impact each other in the housing 1, thereby increasing the diversity of the movement of the printing and dyeing medium and making the printing and dyeing medium evenly distributed in the housing 1. S5: The squeezing roller 1103 squeezes the canvas 101 to remove the excess printing and dyeing medium on the canvas 101. Then, the scraping rod 1104 scrapes the printing and dyeing medium adhered to the squeezing roller 1103. Steam is introduced into the treatment housing 1101 through the pipeline 1102 to fix the color of the canvas 101. After the printing work is completed, the machine can be shut down.

[0033] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements can be made, and these improvements should also be regarded as the protection scope of the present invention.

Claims

1. A printing and dyeing device for producing environmentally friendly canvas, characterized in that: Included are: A shell (1), wherein the shell (1) is filled with a printing and dyeing medium, and the shell (1) is rotatably connected to guide rollers (2) arranged at intervals, and the guide rollers (2) are used to guide the canvas (101); The moving members (3) are two mirror-arranged members, both of which are slidably connected to the housing (1); the moving members (3) are slidably connected to mounting blocks (4) that are mirror-arranged; and moving rollers (5) are rotatably connected between adjacent mounting blocks (4) on different moving members (3); A hydraulic push rod (6) is mounted on the housing (1), the telescopic end of the hydraulic push rod (6) is fixedly connected to a moving frame (7), and the moving frame (7) is fixedly connected to the moving member (3); The tensioning mechanisms are two mirror-arranged ones, respectively provided on adjacent moving parts (3), and are used to change the tensioning state of the canvas (101).

2. The printing and dyeing device for producing environmentally friendly canvas according to claim 1, characterized in that: The moving member (3) is arranged obliquely, and is used to obliquely squeeze the printing and dyeing medium in the housing (1) when the canvas (101) moves.

3. A printing and dyeing device for producing environmentally friendly canvas according to claim 2, characterized in that: The tensioning mechanism comprises: A sliding plate (801) is slidably connected to an adjacent moving member (3), the moving member (3) being fixedly connected to a first elastic element (802), the sliding plate (801) being used to press the first elastic element (802), the first elastic element (802) being used to press the mounting block (4), and a second elastic element (803) being provided between the mounting block (4) and the adjacent moving member (3); The first limiting protrusion (804) is fixedly connected to the sliding plate (801), and the housing (1) is provided with a first limiting groove (805), and the first limiting groove (805) is used to limit the first limiting protrusion (804).

4. A printing and dyeing device for producing environmentally friendly canvas according to claim 3, characterized in that: The first limiting groove (805) is a folded groove, used to enable the sliding plate (801) and the adjacent moving member (3) to slide relative to each other.

5. The printing and dyeing device for producing environmentally friendly canvas according to claim 4, characterized in that: Also included are: The drainage mechanisms are two arranged at intervals and both provided on the housing (1) for guiding the printing and dyeing medium in the housing (1). The drainage mechanisms include: The mounting frame (901) is arranged on the housing (1), and the mounting frame (901) is fixedly connected to first plates (902) arranged at intervals, and the first plates (902) are wavy in shape.

6. A printing and dyeing device for producing environmentally friendly canvas according to claim 5, characterized in that: The wave crests on adjacent first plates (902) correspond to each other, and are used to make the printing and dyeing media guided by them impact each other, and the first plates (902) are fixedly connected to the second plates (903) arranged at intervals.

7. A printing and dyeing device for producing environmentally friendly canvas according to claim 6, characterized in that: Also included are: The mirror-arranged movable plates (1001) are both fixedly connected to the movable frame (7), the mounting frame (901) is slidably connected to the housing (1), the movable plate (1001) is provided with a second limiting groove (1002), the mounting frame (901) is fixedly connected with a second limiting protrusion (1003), and the second limiting groove (1002) is used to limit the second limiting protrusion (1003).

8. The printing and dyeing device for producing environmentally friendly canvas according to claim 7, characterized in that: The second limiting groove (1002) is a wave-shaped groove, used to enable the mounting frame (901) and the housing (1) to slide relative to each other.

9. A printing and dyeing device for producing environmentally friendly canvas according to claim 8, characterized in that: Also included are: A processing shell (1101) is fixedly connected to the shell (1); the shell (1) is fixedly connected to a pipeline (1102); the pipeline (1102) is in communication with the processing shell (1101); Two squeezing rollers (1103) are arranged in a mirror image and are both rotatably connected to the processing shell (1101), and the two squeezing rollers (1103) squeeze each other; The scraping rods (1104) are two spaced apart and fixedly connected to the processing shell (1101) for scraping the squeezing roller (1103); the processing shell (1101) is provided with a first notch (1105) and a second notch (1106) for passing the canvas (101).

10. A printing and dyeing method for producing environmentally friendly canvas, characterized in that: According to the printing and dyeing device for producing environmentally friendly canvas according to claim 9, the specific method of use is as follows: S1: The telescopic end of the hydraulic push rod (6) drives the moving member (3) to move through the moving frame (7), and the moving member (3) drives the moving roller (5) to move together through the mounting block (4), and the moving roller (5) drives the adjacent area of ​​the canvas (101) to move together, so that the canvas (101) and the printing and dyeing medium in the housing (1) are squeezed against each other, so that the printing and dyeing medium has a tendency to "pass through" the canvas (101); S2: the canvas (101) in the inclined state squeezes the printing and dyeing medium in the adjacent area when moving, so that the printing and dyeing medium moves in the housing (1), thereby making the printing and dyeing medium and the canvas (101) contact evenly; S3: The first limiting protrusion (804) moves relative to the housing (1) under the limiting action of the first limiting groove (805), so that the sliding plate (801) squeezes the first elastic element (802), and then the deformed first elastic element (802) squeezes the adjacent mounting block (4), so that the mounting block (4) and the adjacent moving member (3) slide relative to each other, thereby changing the force applied by the moving roller (5) to the canvas (101), that is, changing the tension of the canvas (101), so as to facilitate the adhesion and penetration of the printing and dyeing medium; S4: the first plate (902) and the second plate (903) guide the moving printing and dyeing medium so that the printing and dyeing medium impact each other in the housing (1), thereby increasing the diversity of the movement of the printing and dyeing medium and making the printing and dyeing medium evenly distributed in the housing (1); S5: The squeezing roller (1103) squeezes the canvas (101) to remove the excess printing and dyeing medium on the canvas (101), and then the scraper rod (1104) is used to scrape off the printing and dyeing medium adhering to the squeezing roller (1103), and steam is introduced into the processing shell (1101) through the pipeline (1102) to fix the color of the canvas (101). After the printing and dyeing work is completed, the machine can be turned off.

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