Sizing device for artificial leather production line

Abstract

The utility model discloses a sizing device for an artificial leather production line, which comprises a rack, a sizing tank with an open top is fixedly arranged on the rack, slurry is contained in the sizing tank, the sizing tank comprises a main sizing chamber and an auxiliary sizing chamber positioned on the front side of the main sizing chamber, and the bottom surface of the main sizing chamber is lower than the bottom surface of the auxiliary sizing chamber. The joint of the main sizing chamber and the auxiliary sizing chamber protrudes upwards and is higher than the bottom face of the auxiliary sizing chamber, a sizing roller with the lower portion sinking into the main sizing chamber is rotationally arranged on the machine frame, a slurry homogenizing air bag parallel to the sizing roller is arranged on the slurry liquid level in the auxiliary sizing chamber in a floating mode, and a straightening shoe making contact with the front side face of the slurry homogenizing air bag is arranged on the front side of the machine frame. According to the utility model, the amount of residual slurry generated when different artificial leather varieties are changed in surface treatment is effectively reduced, and meanwhile, the straightening boots are adopted to straighten the bent part of the homogenate air bag in work, so that the requirement on the quality of the homogenate air bag is relaxed, the use amount of the homogenate air bag is saved, the production garbage is greatly reduced, and the production cost is also reduced.

Description

Technical Field

[0001] This utility model belongs to the field of artificial leather production technology, specifically relating to a sizing device for an artificial leather production line. Background Technology

[0002] In the production of artificial leather, the adjustment of surface gloss and haze, as well as surface printing, are all completed on the surface treatment machine. The sizing device is a crucial part of the surface treatment machine. The scientific design of the sizing tank directly determines the amount of residual sizing (if the sizing level in the tank is too low, it's impossible to ensure uniform sizing on the sizing roller), and also affects the uniformity of the sizing solution. To ensure uniformity of the sizing solution in the tank, a cylindrical sizing air bag is placed in the sizing tank before the sizing roller. The sizing air bag rotates with the sizing solution (the sizing solution around the roller tumbles with it during rotation), ensuring even rotation. The slurry air bag continuously agitates the slurry, making it more uniform and preventing it from forming a skin (a film forms on the surface of the slurry when it is still, called surface skin or peeling). Under normal circumstances, the slurry air bag is straight after being filled with air. However, if the air bag is of poor quality, it will bend after being filled with air (i.e., the center line is not a straight line). Sometimes there will be at least one bend. After the slurry air bag is bent, its rotation is poor under the action of the slurry. Especially when the slurry roller rotates slowly at low speed, the slurry air bag will stop rotating. In this case, a better quality slurry air bag must be replaced, which not only wastes the air bag but also wastes the slurry. Utility Model Content

[0003] In order to solve the above-mentioned technical problems in the prior art, this utility model provides a sizing device for artificial leather production line with small residual sizing tank, convenient cleaning of sizing tank, and straightening of uniform air bag.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a sizing device for an artificial leather production line, comprising a frame, a sizing tank with an open top fixed on the frame, the sizing tank containing sizing liquid, the sizing tank including a main sizing chamber and an auxiliary sizing chamber located in front of the main sizing chamber, the vertical cross-section of the main sizing chamber and the auxiliary sizing chamber along the front-back direction is both arc-shaped, the bottom surface of the main sizing chamber is lower than the bottom surface of the auxiliary sizing chamber, the connection between the main sizing chamber and the auxiliary sizing chamber protrudes upward and is higher than the bottom surface of the auxiliary sizing chamber, a sizing roller with its lower part submerged in the main sizing chamber is rotatably mounted on the frame, a homogenizing air bag floating on the surface of the sizing liquid in the auxiliary sizing chamber parallel to the sizing roller, and a straightening shoe contacting the front side of the homogenizing air bag is provided on the front side of the frame.

[0005] The straightening boot includes an arc-shaped support plate and a connecting plate. The inner diameter of the arc-shaped support plate is equal to the outer diameter of the homogenizing air bag. The inner circle of the rear side of the arc-shaped support plate slides in contact with the outer circle of the front side of the homogenizing air bag. A reinforcing rod is fixedly installed on the lower and upper sides of the front side of the arc-shaped support plate. The length direction of the reinforcing rod is arranged along the left and right direction. A reinforcing plate is installed between the front side of the reinforcing rod and the middle of the front side of the arc-shaped support plate. The rear side of the connecting plate is fixedly connected to the front side of the arc-shaped support plate. A front elastic clip and a rear elastic clip are fixedly installed on the lower surface of the connecting plate. The bottom surface of the front side of the connecting plate is placed on the top surface of the front side wall of the slurry tank. The front elastic clip and the rear elastic clip are pressed against the front and rear sides of the front side wall of the slurry tank, respectively.

[0006] Several excess slurry flow channels are provided at the junction of the main slurry chamber and the auxiliary slurry chamber along the left and right directions.

[0007] The connecting plate includes a single-layer movable plate and a double-layer fixed plate. The double-layer fixed plate is placed on the top surface of the front side wall of the slurry tank and is open at both ends. The rear side of the single-layer movable plate is fixedly connected to the front side of the arc-shaped support plate. The front part of the single-layer movable plate is inserted into the double-layer fixed plate. The upper ends of the front elastic clip and the rear elastic clip are fixedly connected to the double-layer fixed plate. The upper layer of the double-layer fixed plate is threaded with a positioning bolt, and the lower end of the positioning bolt is pressed against the upper surface of the single-layer movable plate.

[0008] The single-layer movable panel remains horizontal as a whole.

[0009] The single-layer movable plate includes a horizontal part on the front and an inclined part on the rear. The horizontal part is inserted into the double-layer fixed plate, and the inclined part is higher in the front and lower in the rear. The angle between the horizontal part and the inclined part is an obtuse angle.

[0010] Compared with the prior art, the present invention has the following advantages by adopting the above technical solution:

[0011] (1) The inner wall curve of the main sizing chamber matches the outer circle of the lower part of the sizing roller, and the inner wall curve of the auxiliary sizing chamber matches the outer circle of the lower part of the homogenizing air bag. The slurry is injected from the front side of the auxiliary sizing chamber (the front side of the homogenizing air bag), and then flows from the auxiliary sizing chamber into the main sizing chamber. The flow of the slurry from front to back in the auxiliary sizing chamber can drive the floating homogenizing air bag to rotate. During the sizing process, the lower part of the sizing roller dips into the slurry in the main sizing chamber, and at the same time drives the slurry to roll, which in turn drives the homogenizing air bag to rotate. The rotating homogenizing air bag continuously stirs the slurry, making the slurry more uniform after entering the main sizing chamber, and preventing the slurry from forming a skin.

[0012] Several residual slurry flow channels are provided at the junction (arc-shaped partition) between the main slurry chamber and the auxiliary slurry chamber in the left-right direction. The functions are as follows: First, after the liquid level in the main slurry chamber is lower than the top of the arc-shaped partition, the slurry in the auxiliary slurry chamber can flow to the main slurry chamber; Second, at the end of production, only a small amount of slurry is left in the auxiliary slurry chamber to ensure the rotation of the uniform slurry air bag. Because there is less residual slurry in the auxiliary slurry chamber, it is easier to clean the slurry channel; Third, the setting of the residual slurry flow channels also ensures the flow of slurry at the bottom of the auxiliary slurry chamber, so that the slurry composition in the auxiliary slurry chamber is uniform and the slurry is evenly applied.

[0013] (2) The straightening boot (shaped like a boot) allows for the straightening of air bags of slightly poor quality, which may not rotate well after bending or have poor homogenization effect. This is achieved by using the curved support plate of the straightening boot at the bend to straighten the homogenizing air bag, making the rear side of the homogenizing air bag roll into contact with the sizing roller, thus restoring the straightness of the homogenizing air bag. This saves on homogenizing air bags and avoids downtime and reduced sizing quality when changing homogenizing air bags. It also prevents some sizing liquid from adhering to the surface of the homogenizing air bag and being carried away during air bag replacement, thus avoiding waste and the formation of production waste.

[0014] The single-layer movable plate of the straightening boot's connecting plate can move back and forth within the double-layer fixed plate and be fastened together by positioning bolts. This allows the pressure of the inner circle of the arc-shaped support plate on the homogenizing air bag to be adjusted according to the curvature of the homogenizing air bag, thereby ensuring the stability and effectiveness of straightening.

[0015] (3) When the sizing operation is in normal operation, a single-layer movable plate that keeps the whole body horizontal is used; when the production is about to end, no more sizing is added to the sizing tank, the sizing liquid level gradually decreases, and the uniform air bag drops with the liquid level in the auxiliary sizing chamber. The straightening shoe is replaced with a single-layer movable plate with an obtuse angle between the horizontal part and the inclined part. This allows the position of the arc-shaped support plate to also move downward, thereby maintaining arc-shaped sliding contact with the uniform air bag.

[0016] (4) A square tube is used on the upper part of the front side wall of the slurry tank. The front elastic clip and the rear elastic clip are pressed to the front side and the rear side of the front side wall (square tube) of the slurry tank, respectively, so that the position of the straightening shoe can be adjusted in the left and right directions.

[0017] In summary, this utility model is scientifically designed, simple and practical, and effectively reduces the amount of residual paste generated when changing to different types of artificial leather during surface treatment (the remaining paste can only be used when producing the same type of product again, and the quality will also decrease if the residual paste is left for a long time). At the same time, the use of straightening boots to straighten the bent parts of the homogenizing air bag during operation relaxes the quality requirements of the homogenizing air bag, saves the amount of homogenizing air bag used, greatly reduces production waste, and also reduces production costs. Attached Figure Description

[0018] Figure 1This is a structural schematic diagram of Embodiment 1 of the present invention;

[0019] Figure 2 yes Figure 1 Top view;

[0020] Figure 3 yes Figure 2 Enlarged view of the straightening boot;

[0021] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of this utility model;

[0022] Figure 5 yes Figure 4 Enlarged view of the straightening boot. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples.

[0024] Example 1: As Figures 1-3 As shown, a sizing device for an artificial leather production line according to this utility model includes a frame 1. A sizing tank with an open top is fixed on the frame 1. The sizing tank is filled with sizing liquid 2. The sizing tank includes a main sizing chamber 3 and an auxiliary sizing chamber 4 located in front of the main sizing chamber 3. The vertical cross-section of the main sizing chamber 3 and the auxiliary sizing chamber 4 along the front-back direction is arc-shaped. The bottom surface of the main sizing chamber 3 is lower than the bottom surface of the auxiliary sizing chamber 4. The connection between the main sizing chamber 3 and the auxiliary sizing chamber 4 protrudes upward and is higher than the bottom surface of the auxiliary sizing chamber 4. A sizing roller 5 is rotatably mounted on the frame 1 and its lower part is submerged in the main sizing chamber 3. A homogenizing air bag 6 is floating on the surface of the sizing liquid 2 in the auxiliary sizing chamber 4 and is parallel to the sizing roller 5. A straightening shoe 7 is provided on the front side of the frame 1 and contacts the front side of the homogenizing air bag 6.

[0025] The straightening boot 7 includes an arc-shaped support plate 8 and a connecting plate. The inner diameter of the arc-shaped support plate 8 is equal to the outer diameter of the homogenizing air bag 6. The inner circle of the rear side of the arc-shaped support plate slides in contact with the outer circle of the front side of the homogenizing air bag 6. A reinforcing rod 19 is fixedly provided on the lower and upper sides of the front side of the arc-shaped support plate 8. The length direction of the reinforcing rod 19 is arranged along the left and right direction. A reinforcing plate 20 is provided between the front side of the reinforcing rod 19 and the middle of the front side of the arc-shaped support plate 8 (the setting of the reinforcing rod 19 and the reinforcing plate 20 improves the strength of the arc-shaped support plate 8 and keeps its arc surface stable). The rear side of the connecting plate is fixedly connected to the middle of the front side of the arc-shaped support plate 8. A front elastic clip 10 and a rear elastic clip 11 are fixedly provided on the lower surface of the connecting plate. The bottom surface of the front side of the connecting plate is placed on the top surface of the front side wall (arc-shaped partition 12) of the slurry tank. The front elastic clip 10 and the rear elastic clip 11 are pressed against the front and rear sides of the front side wall of the slurry tank, respectively.

[0026] Several excess slurry flow channels 13 are provided at the junction of the main slurry chamber 3 and the auxiliary slurry chamber 4 in the left-right direction.

[0027] The connecting plate includes a single-layer movable plate 14 and a double-layer fixed plate 15. The double-layer fixed plate 15 is placed on the top surface of the front side wall of the slurry tank and is open at both ends. The rear side of the single-layer movable plate 14 is fixedly connected to the front side of the arc-shaped support plate 8. The front part of the single-layer movable plate 14 is inserted into the double-layer fixed plate 15. The upper ends of the front elastic clip 10 and the rear elastic clip 11 are fixedly connected to the double-layer fixed plate 15. The upper layer of the double-layer fixed plate 15 is threaded with a positioning bolt 16, and the lower end of the positioning bolt 16 is pressed against the upper surface of the single-layer movable plate 14. The single-layer movable plate 14 is kept horizontal as a whole.

[0028] The working principle and beneficial effects of this utility model are as follows:

[0029] (1) The inner wall curve of the main sizing chamber 3 matches the lower outer circle of the sizing roller 5, and the inner wall curve of the auxiliary sizing chamber 4 matches the lower outer circle of the homogenizing air bag 6. The slurry 2 is injected from the front side of the auxiliary sizing chamber 4 (the front side of the homogenizing air bag 6), and then the slurry 2 flows from the auxiliary sizing chamber 4 into the main sizing chamber 3. The flow of the slurry 2 from front to back in the auxiliary sizing chamber 4 can drive the floating homogenizing air bag 6 to rotate. During the sizing process, the lower part of the sizing roller 5 dips into the slurry 2 in the main sizing chamber 3, and at the same time drives the slurry 2 to roll, which in turn drives the homogenizing air bag 6 to rotate. The rotating homogenizing air bag 6 continuously stirs the slurry 2, making the slurry 2 more uniform after entering the main sizing chamber 3, and preventing the slurry 2 from forming a skin.

[0030] Several residual slurry flow channels 13 are provided at the junction of the main slurry chamber 3 and the auxiliary slurry chamber 4 (arc-shaped partition 12) in the left and right directions. The functions are as follows: First, after the liquid level in the main slurry chamber 3 is lower than the top of the arc-shaped partition 12, the slurry 2 in the auxiliary slurry chamber 4 can flow to the main slurry chamber 3; Second, at the end of production, only a small amount of slurry 2 is left in the auxiliary slurry chamber 4 to ensure the rotation of the uniform air bag 6. Because there is less residual slurry in the auxiliary slurry chamber 4, it is easier to clean the slurry channel; Third, the setting of the residual slurry flow channels 13 also ensures the flow of the slurry 2 at the bottom of the auxiliary slurry chamber 4, so that the composition of the slurry 2 in the auxiliary slurry chamber 4 is uniform, ensuring uniform slurry application.

[0031] (2) The straightening shoe 7 (shaped like a boot) allows for the straightening of air bags of slightly poor quality, poor rotation after slight bending, and weak homogenization effect. By using the arc-shaped support plate 8 of the straightening shoe 7 at the bending point, the homogenizing air bag 6 is straightened, and the rear side of the homogenizing air bag 6 rolls into contact with the sizing roller 5, thereby achieving straightening and restoring the straightness of the homogenizing air bag 6. This saves homogenizing air bags 6 and avoids the downtime caused by replacing homogenizing air bags 6, which would affect the sizing quality. It also avoids the waste caused by some slurry 2 adhering to the surface of the homogenizing air bag 6 and being carried away when replacing air bags, thus preventing the formation of production waste.

[0032] The single-layer movable plate 14 of the connecting plate of the straightening boot 7 can move back and forth within the double-layer fixed plate 15 and be fastened together by the positioning bolt 16. This allows the pressure of the inner circle of the arc support plate 8 on the homogenizing air bag 6 to be adjusted according to the curvature of the homogenizing air bag 6, thereby ensuring the stability and effectiveness of straightening.

[0033] (3) When the sizing operation is in normal operation, a single-layer movable plate 14 that is kept horizontal as a whole is used.

[0034] (4) A square tube is used on the upper part of the front side wall of the slurry tank. The front elastic clip 10 and the rear elastic clip 11 are pressed to the front side and the rear side of the front side wall (square tube) of the slurry tank, respectively, so that the position of the straightening shoe 7 can be adjusted in the left and right directions.

[0035] Example 2: Figures 4-5 As shown, the difference from Embodiment 1 is that the single-layer movable plate 14 includes a horizontal part 17 on the front side and an inclined part 18 on the rear side. The horizontal part 17 is inserted into the double-layer fixed plate 15, and the inclined part 18 is higher in the front and lower in the back. The angle between the horizontal part 17 and the inclined part 18 is an obtuse angle.

[0036] As production nears its end, no more slurry is added to the upper slurry tank, and the slurry level 2 gradually decreases. As the slurry level in the auxiliary slurry chamber 4 decreases, the straightening shoe 7 is replaced with a single-layer movable plate 14 with an obtuse angle between the horizontal part 17 and the inclined part 18. This allows the position of the arc-shaped support plate 8 to also move downward, thereby maintaining arc-shaped sliding contact with the slurry air bag 6.

[0037] The above embodiments illustrate the basic principles and features of this utility model. However, the above descriptions are merely preferred embodiments and are not limited to these embodiments. Those skilled in the art, inspired by this patent, can make many modifications and improvements without departing from the spirit and scope of the claims, all of which fall within the protection scope of this utility model. Therefore, the patent and its scope of protection should be determined by the appended claims.

Claims

1. A sizing device for an artificial leather production line, comprising a frame, a sizing tank with an open top fixed on the frame, the sizing tank containing sizing liquid, characterized in that: The sizing tank includes a main sizing chamber and an auxiliary sizing chamber located in front of the main sizing chamber. The vertical cross-sections of the main sizing chamber and the auxiliary sizing chamber are both arc-shaped along the front-back direction. The bottom surface of the main sizing chamber is lower than the bottom surface of the auxiliary sizing chamber. The connection between the main sizing chamber and the auxiliary sizing chamber protrudes upward and is higher than the bottom surface of the auxiliary sizing chamber. A sizing roller with its lower part submerged in the main sizing chamber is rotatably mounted on the frame. A homogenizing air bag is floating on the surface of the sizing liquid in the auxiliary sizing chamber, parallel to the sizing roller. A straightening shoe is provided on the front side of the frame, which contacts the front side of the homogenizing air bag.

2. The sizing device for an artificial leather production line according to claim 1, characterized in that: The straightening boot includes an arc-shaped support plate and a connecting plate. The inner diameter of the arc-shaped support plate is equal to the outer diameter of the homogenizing air bag. The inner circle of the rear side of the arc-shaped support plate slides in contact with the outer circle of the front side of the homogenizing air bag. A reinforcing rod is fixedly installed on the lower and upper sides of the front side of the arc-shaped support plate. The length direction of the reinforcing rod is arranged along the left and right direction. A reinforcing plate is installed between the front side of the reinforcing rod and the middle of the front side of the arc-shaped support plate. The rear side of the connecting plate is fixedly connected to the front side of the arc-shaped support plate. A front elastic clip and a rear elastic clip are fixedly installed on the lower surface of the connecting plate. The bottom surface of the front side of the connecting plate is placed on the top surface of the front side wall of the slurry tank. The front elastic clip and the rear elastic clip are pressed against the front and rear sides of the front side wall of the slurry tank, respectively.

3. A sizing device for an artificial leather production line according to claim 1 or 2, characterized in that: Several excess slurry flow channels are provided at the junction of the main slurry chamber and the auxiliary slurry chamber along the left and right directions.

4. A sizing device for an artificial leather production line according to claim 1 or 2, characterized in that: The connecting plate includes a single-layer movable plate and a double-layer fixed plate. The double-layer fixed plate is placed on the top surface of the front side wall of the slurry tank and is open at both ends. The rear side of the single-layer movable plate is fixedly connected to the front side of the arc-shaped support plate. The front part of the single-layer movable plate is inserted into the double-layer fixed plate. The upper ends of the front elastic clip and the rear elastic clip are fixedly connected to the double-layer fixed plate. The upper layer of the double-layer fixed plate is threaded with a positioning bolt, and the lower end of the positioning bolt is pressed against the upper surface of the single-layer movable plate.

5. The sizing device for an artificial leather production line according to claim 4, characterized in that: The single-layer movable panel remains horizontal as a whole.

6. The sizing device for an artificial leather production line according to claim 4, characterized in that: The single-layer movable plate includes a horizontal part on the front and an inclined part on the rear. The horizontal part is inserted into the double-layer fixed plate, and the inclined part is higher in the front and lower in the rear. The angle between the horizontal part and the inclined part is an obtuse angle.

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