Uniform coating device

Abstract

Relates to the field of textile industry, and discloses a uniform coating device which comprises a coating box used for storing dye, a second guide wheel fixed at the bottom of the coating box and used for guiding cloth, a supporting pipe arranged on one side in the coating box, a feeding pipe arranged at the upper end of the supporting pipe and a control unit, the supporting rod is arranged on the supporting pipe; the control unit comprises a mounting box fixed at the upper end of the supporting pipe; the detection device is arranged in the supporting pipe in a penetrating manner and is arranged in the mounting box; the blocking device is arranged in the mounting box; according to the cloth coating device, it is ensured that the dye liquid level in the coating box is always kept within a stable range, efficient, uniform and automatic control over the cloth coating process is achieved, inflow of coating is controlled, and waste of the coating is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of the textile industry, and particularly relates to a uniform coating device. Background Art

[0002] Non-woven fabric is a textile that is similar to woven fabric in appearance and function. Since most of it is composed of chemically bonded fiber materials, in the textile industry, it is necessary to dye and process non-woven fabric. The traditional coating device uses the soaking method, and the uniform application of the coating is crucial for the product quality.

[0003] The existing equipment has the following disadvantages: The traditional coating device lacks precise liquid level control in coating supply, resulting in easy shortage or excess of coating during use, which not only wastes resources but also causes too much or too little dye on the non-woven fabric, affecting the coating quality of the product.

[0004] Therefore, the present application now proposes a uniform coating device to solve the above problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a uniform coating device to solve the problems that during the use of the coating, it is easy to have a shortage or excess of supply, which not only wastes resources but also causes too much or too little dye on the non-woven fabric.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A uniform coating device includes a coating tank for storing dye, a second guide wheel fixed at the bottom of the coating tank for guiding the cloth, a support pipe arranged on one side inside the coating tank, and a feed pipe arranged at the upper end of the support pipe for supplementing dye into the interior of the coating tank. It further includes:

[0007] A control unit arranged on the support pipe for controlling the liquid level of the dye inside the coating tank;

[0008] The control unit includes:

[0009] An installation box fixed at the upper end of the support pipe;

[0010] A detection device inserted into the interior of the support pipe and arranged inside the installation box for detecting the liquid level inside the coating tank;

[0011] A blocking device arranged inside the installation box for controlling the switch of the feed pipe;

[0012] A transmission device arranged inside the support pipe and connected to the blocking device and the detection device for controlling the movement of the blocking device.

[0013] Wherein, a fixing frame for fixing the support pipe is arranged inside the paint box. The detection device includes a connecting pipe penetrating inside the support pipe, a floating ball fixed at the lower end of the connecting pipe, a limiting rod fixed at the lower end of the connecting pipe, and a wide-mouth-shaped material receiving pipe fixed at the upper end of the connecting pipe. A guiding frame for guiding the connecting pipe is arranged at a position corresponding to the connecting pipe on the paint box.

[0014] Wherein, the transmission device includes a connecting plate fixed on one side of the connecting pipe, a slider fixed on the side of the connecting plate away from the connecting pipe and slidably arranged inside the support pipe, brackets fixed on both sides of the connecting plate, a first rack fixed on the brackets, a rotating shaft arranged on the inner wall of the support pipe, and a gear arranged on the rotating shaft. The gear meshes with the first rack, a ratchet is arranged between the gear and the rotating shaft, the gear is connected to the blocking device, and a sliding groove for the slider to move is opened at a position corresponding to the slider on the support pipe.

[0015] Wherein, the blocking device includes a blocking plate slidably arranged on the inner bottom wall of the installation box, a moving block fixed at the lower end of the blocking plate and slidably connected inside the installation box, and a second rack fixed at the lower end of the moving block and meshing with the gear. An outlet is opened on one side of the blocking plate, and a moving groove for the moving block to move is opened at a position corresponding to the moving block on the installation box.

[0016] Wherein, the control unit further includes a guiding ring fixed on the installation box and located below the feed pipe, a sealing device arranged at the lower end of the guiding ring for sealing the guiding ring, and a limiting member arranged inside the installation box for limiting the blocking plate. A supporting member for pushing the blocking plate to reset is arranged on one side of the installation box.

[0017] Wherein, the sealing device includes a fixed block fixed on the inner wall of the installation box, an installation rod fixed between the two fixed blocks, a guiding plate slidably arranged on the installation rod, and a sealing plate fixed between the two guiding plates for sealing the lower end of the guiding ring. A first elastic member is sleeved between the guiding plate and the fixed block on the installation rod. The sealing plate is connected to the blocking plate through a connecting rope, and an installation block for fixing the connecting rope is arranged at a position corresponding to the connecting rope on the blocking plate.

[0018] Wherein, a limiting block is fixed at the upper end of the sealing plate, and a limiting groove for the limiting block to move is opened at a position corresponding to the limiting block on the guiding ring.

[0019] Wherein, the limiting member includes a fixing plate fixed on one side of the mounting box in the moving direction of the baffle plate, a microswitch fixed on the fixing plate, and an electric telescopic rod arranged on the inner bottom wall of the mounting box. The microswitch is electrically connected to the electric telescopic rod. An installation groove for placing the electric telescopic rod is formed on the mounting box, and a fixing hole for fixing the electric telescopic rod is formed at the position of the baffle plate corresponding to the electric telescopic rod.

[0020] Wherein, the supporting member includes a pushing plate fixed on one side of the baffle plate away from the material guiding ring, and a supporting rod fixed on one side of the pushing plate away from the material guiding ring and passing through the mounting box. A second elastic member is sleeved between the supporting rod at the position between the pushing plate and the mounting box.

[0021] Wherein, two sides of the upper end of the paint box are provided with first guide wheels for guiding the cloth.

[0022] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0023] 1. When the non-woven fabric is dyed by the utility model, the cloth passes through the lower end of the second guide wheel inside the paint box, and then the cloth contacts the dye inside the paint box, and the dye impregnates the cloth. During the continuous impregnation process of the cloth, the liquid level of the dye inside the paint box continuously drops. The liquid level detection device monitors the liquid level of the dye in the paint box in real time. When the liquid level inside the paint box drops to the lowest point, the detection device moves down, and the blocking device is opened through the transmission device, and the paint raw material is added into the inside of the support pipe of the feed pipe box. When the liquid level reaches the preset height, the detection device moves up, and the blocking device is driven through the transmission device to automatically close the feed pipe, preventing the dye from being excessive. By setting this device, it can ensure that the liquid level of the dye in the paint box always remains within a stable range, realizing the efficient, uniform and automatic control of the cloth painting process. The blocking device can flexibly block the feed pipe, thereby controlling the inflow of the paint and avoiding the waste of the paint.

[0024] 2. The driving device of the present utility model drives the baffle to move, so that the material discharge port is opened. And when the material discharge port is aligned with the discharge port, the baffle drives the sealing device to move, so that the lower end of the material guiding ring is opened. The dye inside the feed pipe flows into the inside of the material receiving pipe along the material guiding ring, replenishing the dye into the coating tank. Since a ratchet is provided between the gear and the rotating shaft, the gear can only rotate counterclockwise on the rotating shaft. When the coating liquid level inside the coating tank continuously rises, the connecting pipe drives the first rack to move upward, and the first rack pushes the gear. At this time, the ratchet on the gear idles on the rotating shaft, and the gear does not rotate. And when the lower end of the material guiding ring is completely opened, the limiting member fixes the baffle. And after the limiting member reaches the set time, the limiting member no longer fixes the baffle. At this time, the supporting member drives the baffle to move towards the side close to the material guiding ring to seal the material guiding ring. The baffle drives the second rack at the lower end to move towards the side close to the material guiding ring, and then the second rack pushes the gear. At this time, the ratchet on the gear idles on the rotating shaft, and the gear does not rotate. When the baffle moves to the outermost side, the baffle presses the microswitch, and the microswitch opens the electric telescopic rod. Then the electric telescopic rod moves upward and inserts into the fixing hole on the baffle to fix the baffle. When the set time is reached, the coating liquid level inside the coating tank reaches the highest value. Then the electric telescopic rod resets and contracts into the installation groove to release the restriction on the baffle. Then the supporting member pushes the baffle to reset. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 is the schematic diagram of the main structure in an embodiment of the present utility model;

[0026] Figure 2 is the schematic sectional structure diagram in an embodiment of the present utility model;

[0027] Figure 3 is the schematic sectional structure diagram of the support pipe in an embodiment of the present utility model;

[0028] Figure 4 is the schematic diagram of the internal structure of the installation box in an embodiment of the present utility model;

[0029] Figure 5 is the schematic diagram of the detection device in an embodiment of the present utility model;

[0030] Figure 6 is the schematic diagram of the control unit in an embodiment of the present utility model;

[0031] Figure 7 is the schematic diagram of the internal structure of the installation box in an embodiment of the present utility model;

[0032] Figure 8 is the schematic diagram of the driving device in an embodiment of the present utility model;

[0033] Figure 9 Structural schematic diagram of the transmission device and the blocking device in an embodiment of the present utility model;

[0034] Figure 10 Structural schematic diagram of the connection between the sealing device and the material guiding ring in an embodiment of the present utility model;

[0035] Figure 11 Structural schematic diagram of the cross-section of the installation box in an embodiment of the present utility model;

[0036] Figure 12 Structural schematic diagram of the connection between the connecting pipe and the transmission device in an embodiment of the present utility model;

[0037] Figure 13 Structural schematic diagram of the blocking device sealing the material discharging port in an embodiment of the present utility model;

[0038] Figure 14 Structural schematic diagram of the sealing device in an embodiment of the present utility model;

[0039] Figure 15 Structural schematic diagram of the connection between the gear and the second rack in an embodiment of the present utility model;

[0040] Figure 16 Explosion structural schematic diagram of the control unit in an embodiment of the present utility model.

[0041] In the figure: 1, paint box; 2, cloth; 3, first guide wheel; 4, second guide wheel; 5, support pipe; 501, sliding groove; 51, fixing frame; 52, guiding frame; 6, feed pipe; 7, control unit; 71, installation box; 7101, moving groove; 7102, material discharging port; 7103, installation groove; 711, material guiding ring; 7111, limiting groove; 72, detection device; 721, floating ball; 722, limiting rod; 723, material receiving pipe; 724, connecting pipe; 73, transmission device; 731, connecting plate; 732, slider; 733, bracket; 734, first rack; 735, gear; 736, rotating shaft; 74, sealing device; 741, sealing plate; 7411, limiting block; 742, guiding plate; 743, installation rod; 744, fixing block; 745, first elastic member; 746, connecting rope; 75, electric telescopic rod; 76, support member; 761, support rod; 762, second elastic member; 77, fixing plate; 78, micro switch; 79, blocking device; 7901, discharge port; 7902, fixing hole; 791, moving block; 792, installation block; 793, second rack; 794, pushing plate; 795, blocking plate. Detailed implementation manners

[0042] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0043] Embodiment 1

[0044] Please refer to Figures 1-16 , the present invention provides a technical solution: a uniform coating device, including a coating tank 1 for storing dyes, a second guide wheel 4 fixed at the bottom of the coating tank 1 for guiding the cloth 2, a support pipe 5 arranged on one side inside the coating tank 1, and a feed pipe 6 arranged at the upper end of the support pipe 5 for replenishing dyes into the interior of the coating tank 1. It further includes:

[0045] A control unit 7, arranged on the support pipe 5, for controlling the liquid level of the dyes inside the coating tank 1;

[0046] The control unit 7 includes:

[0047] An installation box 71, fixed at the upper end of the support pipe 5, and a material discharge port 7102 is opened at the corresponding position of the lower end of the installation box 71 with respect to the support pipe 5;

[0048] A detection device 72, passing through the inside of the support pipe 5 and arranged inside the installation box 71, for detecting the liquid level inside the coating tank 1;

[0049] A blocking device 79, arranged inside the installation box 71, for controlling the switch of the feed pipe 6;

[0050] A transmission device 73, arranged inside the support pipe 5 and connected to the blocking device 79 and the detection device 72, for controlling the movement of the blocking device 79.

[0051] It should be noted that during operation, when dyeing the non-woven fabric, the cloth 2 passes through the lower end of the second guide wheel 4 inside the coating tank 1, and then the cloth 2 comes into contact with the dye inside the coating tank 1. The dye impregnates the cloth 2. During the continuous impregnation process of the cloth 2, the liquid level of the dye inside the coating tank 1 continuously drops. The liquid level detection device 72 monitors the liquid level of the dye inside the coating tank 1 in real time. When the liquid level inside the coating tank 1 drops to the lowest point, the detection device 72 moves down, and the blocking device 79 is opened through the transmission device 73. The coating raw material is added into the support pipe 5 of the feed pipe 6. When the liquid level reaches the preset height, the detection device 72 moves up, and the blocking device 79 is driven through the transmission device 73 to automatically close the feed pipe 6, preventing an excessive amount of dye. By setting this device, it can ensure that the liquid level of the dye inside the coating tank 1 always remains within a stable range, realizing efficient, uniform, and automated control of the coating process of the cloth 2. The blocking device 79 can flexibly block the feed pipe 6, thereby controlling the inflow of the coating and avoiding waste of the coating.

[0052] In one embodiment, a fixing frame 51 for fixing the support pipe 5 is provided inside the coating tank 1. The detection device 72 includes a connecting pipe 724 inserted inside the support pipe 5, a floating ball 721 fixed to the lower end of the connecting pipe 724, a limiting rod 722 fixed to the lower end of the connecting pipe 724, and a flared receiving pipe 723 fixed to the upper end of the connecting pipe 724. A guiding frame 52 for guiding the connecting pipe 724 is provided at the position of the coating tank 1 corresponding to the connecting pipe 724.

[0053] With such a design, the floating ball 721 floats on the upper end of the dye inside the coating tank 1. Then, when the liquid level inside the coating tank 1 drops, the floating ball 721 drives the connecting pipe 724 to move down, causing the connecting pipe 724 to drive the transmission device 73 to rotate. During the rotation of the transmission device 73, it drives the blocking device 79 to move to the side away from the feed pipe 6, and the lower end of the feed pipe 6 is opened. Then, the dye flows into the inside of the receiving pipe 723. The flared shape of the receiving pipe 723 facilitates the inflow of the dye into the inside of the connecting pipe 724, and then flows into the coating tank 1 along the connecting pipe 724 to replenish the dye inside the coating tank 1. When the dye inside the coating tank 1 continuously moves up, the floating ball 721 moves up together with the liquid level. When the liquid level moves up to the set position, the connecting pipe 724 drives the blocking device 79 to move to the side of the feed pipe 6 through the transmission device 73 to seal the lower end of the feed pipe 6. By setting this device, it can monitor and regulate the liquid level of the dye inside the coating tank 1 in real time, enabling the liquid level inside the coating tank 1 to fluctuate within a range of 2 centimeters. When the cloth 2 passes through the coating tank 1 during production, the coating is uniform, not easily folded or wrinkled, saving raw materials, reducing labor, and improving production efficiency at the same time.

[0054] In one embodiment, the transmission device 73 includes a connecting plate 731 fixed to one side of the connecting pipe 724, a slider 732 fixed to the side of the connecting plate 731 away from the connecting pipe 724 and slidably disposed inside the support pipe 5, brackets 733 fixed to both sides of the connecting plate 731, a first rack 734 fixed to the brackets 733, a rotating shaft 736 disposed on the inner wall of the support pipe 5, and a gear 735 disposed on the rotating shaft 736. The gear 735 meshes with the first rack 734, and the gear 735 is connected to the blocking device 79. A sliding groove 501 for the slider 732 to move is formed at the position of the support pipe 5 corresponding to the slider 732.

[0055] With such a design, when the connecting pipe 724 moves downward, the connecting plate 731 drives the bracket 733 to move downward, so that the first rack 734 meshes with the gear 735, causing the gear 735 to rotate on the rotating shaft 736. Then the gear 735 meshes with the blocking device 79, driving the blocking device 79 to move to the side away from the feed pipe 6, and the lower end of the feed pipe 6 is opened. Then the dye flows into the temporal part of the connecting pipe 724 from the material discharge port 7102. When the connecting plate 731 moves downward, the slider 732 moves inside the sliding groove 501, which can improve the stability of the movement of the first rack 734.

[0056] In one embodiment, the blocking device 79 includes a blocking plate 795 slidably disposed on the inner bottom wall of the installation box 71, a moving block 791 fixed to the lower end of the blocking plate 795 and slidably connected inside the installation box 71, and a second rack 793 fixed to the lower end of the moving block 791 and meshing with the gear 735. An outlet 7901 is formed on one side of the blocking plate 795, and a moving groove 7101 for the moving block 791 to move is formed at the position of the installation box 71 corresponding to the moving block 791.

[0057] With such a design, the gear 735 meshes with the second rack 793, and then the blocking plate 795 moves to the side away from the feed pipe 6. Then the outlet 7901 moves above the material discharge port 7102. Then the dye flows from the feed pipe 6 to the outlet 7901. When the blocking plate 795 moves, the moving block 791 moves inside the moving groove 7101, which can improve the smoothness of the movement of the blocking plate 795, so that the outlet 7901 can be aligned with the material discharge port 7102 when the blocking plate 795 moves.

[0058] Embodiment Two

[0059] The transmission device 73 includes a connecting plate 731 fixed to one side of the connecting pipe 724, a slider 732 fixed to the side of the connecting plate 731 away from the connecting pipe 724 and slidably arranged inside the support pipe 5, brackets 733 fixed to both sides of the connecting plate 731, a first rack 734 fixed to the brackets 733, a rotating shaft 736 arranged on the inner wall of the support pipe 5, and a gear 735 arranged on the rotating shaft 736. The gear 735 meshes with the first rack 734. A ratchet is arranged between the gear 735 and the rotating shaft 736. The gear 735 is connected to the blocking device 79. A chute 501 for the slider 732 to move is provided at the position of the support pipe 5 corresponding to the slider 732.

[0060] In one embodiment, the control unit 7 further includes a material guiding ring 711 fixed to the mounting box 71 and located below the feeding pipe 6, a sealing device 74 arranged at the lower end of the material guiding ring 711 for sealing the material guiding ring 711, and a limiting member arranged inside the mounting box 71 for limiting the blocking plate 795. A support member 76 for pushing the blocking plate 795 to reset is arranged on one side of the mounting box 71.

[0061] With such a design, the transmission device 73 drives the blocking plate 795 to move, so that the material discharging port 7102 is opened. And when the material discharging port 7102 is aligned with the material discharging port 7901, the blocking plate 795 drives the sealing device 74 to move, so that the lower end of the material guiding ring 711 is opened. The dye inside the feeding pipe 6 flows into the inside of the receiving pipe 723 along the material guiding ring 711, replenishing the dye into the inside of the coating tank 1. Since a ratchet is arranged between the gear 735 and the rotating shaft 736, the gear 735 can only rotate counterclockwise on the rotating shaft 736. When the coating liquid level inside the coating tank 1 continuously rises, the connecting pipe 724 drives the first rack 734 to move upward. The first rack 734 pushes the gear 735. At this time, the ratchet on the gear 735 idles on the rotating shaft 736, and the gear 735 does not rotate. And when the lower end of the material guiding ring 711 is completely opened, the limiting member fixes the blocking plate 795. And after the limiting member reaches the set time, the limiting member no longer fixes the blocking plate 795. At this time, the support member 76 drives the blocking plate 795 to move toward the side close to the material guiding ring 711 to seal the material guiding ring 711. The blocking plate 795 drives the second rack 793 at the lower end to move toward the side close to the material guiding ring 711. Then the second rack 793 pushes the gear 735. At this time, the ratchet on the gear 735 idles on the rotating shaft 736, and the gear 735 does not rotate.

[0062] In one embodiment, the sealing device 74 includes a fixed block 744 fixed to the inner wall of the mounting box 71, a mounting rod 743 fixed between two fixed blocks 744, a guiding plate 742 slidably disposed on the mounting rod 743, and a sealing plate 741 fixed between two guiding plates 742 for sealing the lower end of the material guiding ring 711. A first elastic member 745 is sleeved between the guiding plate 742 and the fixed block 744 on the mounting rod 743. The sealing plate 741 is connected to the blocking plate 795 through a connecting rope 746. At the position of the blocking plate 795 corresponding to the connecting rope 746, a mounting block 792 for fixing the connecting rope 746 is provided. The first elastic member 745 is made of a spring or an elastic pad with damping.

[0063] With such a design, the connecting rope 746 is in a loose state, and when the blocking plate 795 moves, it will not immediately drive the sealing plate 741 to move. When the center of the discharge port 7901 on the blocking plate 795 coincides with the center of the material feeding port 7102, the connecting rope 746 is in a taut state. At this time, the blocking plate 795 can drive the sealing plate 741 to move away from the material guiding ring 711 through the connecting rope 746. At this time, the lower end of the material guiding ring 711 is opened, and the dye flows out from the inside of the material guiding ring 711. During the movement of the sealing plate 741, the guiding plate 742 moves on the mounting rod 743 and squeezes the first elastic member 745 on the mounting rod 743. When the blocking plate 795 does not pull the connecting rope 746, the first elastic member 745 drives the sealing plate 741 to reset.

[0064] In one embodiment, a limiting block 7411 is fixed to the upper end of the sealing plate 741, and a limiting groove 7111 for the limiting block 7411 to move is provided at the position of the material guiding ring 711 corresponding to the limiting block 7411.

[0065] With such a design, when the sealing plate 741 moves, the limiting block 7411 on the sealing plate 741 moves in the limiting groove 7111, which can improve the smoothness of the movement of the sealing plate 741.

[0066] In one embodiment, the limiting member includes a fixing plate 77 fixed to one side of the mounting box 71 in the moving direction of the blocking plate 795, a micro switch 78 fixed to the fixing plate 77, and an electric telescopic rod 75 disposed on the inner bottom wall of the mounting box 71. The micro switch 78 is electrically connected to the electric telescopic rod 75. An installation groove 7103 for placing the electric telescopic rod 75 is provided on the mounting box 71, and a fixing hole 7902 for fixing the electric telescopic rod 75 is provided at the position of the blocking plate 795 corresponding to the electric telescopic rod 75.

[0067] With such a design, when the baffle plate 795 moves to the outermost side, the baffle plate 795 squeezes the microswitch 78, and the microswitch 78 turns on the electric telescopic rod 75. Then, the electric telescopic rod 75 moves upward and inserts into the fixing hole 7902 on the baffle plate 795 to fix the baffle plate 795. When the set time is reached, the paint level in the paint tank 1 reaches the highest value. Then, the electric telescopic rod 75 resets and contracts into the installation groove 7103 to release the restriction on the baffle plate 795. Then, the support member 76 pushes the baffle plate 795 to reset.

[0068] In one embodiment, the support member 76 includes a pushing plate 794 fixed on the side of the baffle plate 795 away from the material guiding ring 711 and a support rod 761 fixed on the side of the pushing plate 794 away from the material guiding ring 711 and passing through the installation box 71. A second elastic member 762 is sleeved between the support rod 761 and the pushing plate 794. The second elastic member 762 is made of a spring or an elastic pad with damping.

[0069] With such a design, the second elastic member 762 drives the pushing plate 794 to move toward the side close to the material guiding ring 711, and then the sealing plate 741 seals the lower end of the material guiding ring 711.

[0070] In one embodiment, first guide wheels 3 for guiding the cloth 2 are arranged on both sides of the upper end of the paint tank 1.

[0071] With such a design, the arrangement of the first guide wheels 3 ensures the stable guiding and transmission of the cloth 2 during the painting process, improves the processing quality and efficiency. At the same time, the first guide wheels 3 can also apply a certain tension and adjustment to the cloth 2, so that the cloth 2 can maintain a stable tension and shape during the painting process.

[0072] In addition, if there are descriptions involving "first", "second", etc. in the embodiment, such descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance to the specification or the number of the indicated technical features. Thus, features defined with "first", "second" may explicitly or implicitly include at least one such feature.

Claims

1. A uniform coating device, comprising a coating box (1) for storing dye, a second guide wheel (4) fixed to the bottom of the coating box (1) for guiding a cloth (2), a support tube (5) arranged on one side of the interior of the coating box (1), and a feed tube (6) arranged at the upper end of the support tube (5) for replenishing dye into the interior of the coating box (1), characterized in that: Also includes: A control unit (7), arranged on the support tube (5), and used for controlling the liquid level of the dye inside the paint box (1); The control unit (7) comprises: A mounting box (71) fixed to the upper end of the support tube (5); A detection device (72) is inserted into the support tube (5) and arranged inside the installation box (71), and is used to detect the liquid level inside the paint box (1); A blocking device (79), arranged inside the installation box (71), for controlling the opening and closing of the feed pipe (6); A transmission device (73) is arranged inside the support tube (5) and connected to the blocking device (79) and the detection device (72), and is used to control the movement of the blocking device (79).

2. A uniform coating device according to claim 1, characterized in that: The paint box (1) is provided with a fixing frame (51) for fixing the support tube (5), the detection device (72) comprises a connecting tube (724) passing through the support tube (5), a floating ball (721) fixed at the lower end of the connecting tube (724), a limiting rod (722) fixed at the lower end of the connecting tube (724), and a wide-mouthed material receiving tube (723) fixed at the upper end of the connecting tube (724), and the paint box (1) is provided with a guiding frame (52) for guiding the connecting tube (724) at a position corresponding to the connecting tube (724).

3. A uniform coating device according to claim 2, characterized in that: The transmission device (73) comprises a connecting plate (731) fixed on one side of the connecting tube (724), a slider (732) fixed on the connecting plate (731) away from the connecting tube (724) and slidably arranged inside the supporting tube (5), brackets (733) fixed on both sides of the connecting plate (731), a first rack (734) fixed on the bracket (733), a rotating shaft (736) arranged on the inner wall of the supporting tube (5), and a gear (735) arranged on the rotating shaft (736); the gear (735) and the first rack (734) are meshed with each other; a ratchet is arranged between the gear (735) and the rotating shaft (736); the gear (735) is connected to the blocking device (79); and a sliding groove (501) for the slider (732) to move is provided at a position of the supporting tube (5) corresponding to the slider (732).

4. A uniform coating device according to claim 3, characterized in that: The blocking device (79) comprises a blocking plate (795) slidably arranged on the inner bottom wall of the installation box (71), a moving block (791) fixed at the lower end of the blocking plate (795) and slidably connected to the inside of the installation box (71), and a second rack (793) fixed at the lower end of the moving block (791) and meshing with the gear (735), a discharge port (7901) is provided on one side of the blocking plate (795), and a moving groove (7101) for the moving block (791) to move is provided at a position of the installation box (71) corresponding to the moving block (791) for movement of the moving block (791).

5. A uniform coating device according to claim 4, characterized in that: The control unit (7) further comprises a guide ring (711) fixed on the installation box (71) and located below the feed pipe (6), a sealing device (74) arranged at the lower end of the guide ring (711) for sealing the guide ring (711), and a limiting member arranged inside the installation box (71) for limiting the position of the blocking plate (795); and a support member (76) for pushing the blocking plate (795) to reset is arranged on one side of the installation box (71).

6. A uniform coating device according to claim 5, characterized in that: The sealing device (74) comprises a fixing block (744) fixed on the inner wall of the installation box (71), a mounting rod (743) fixed between the two fixing blocks (744), a guide plate (742) slidably arranged on the mounting rod (743), and a sealing plate (741) fixed between the two guide plates (742) for sealing the lower end of the guide ring (711), wherein the mounting rod (743) is located between the guide plate (742) and the fixing block (744) and is sleeved with a first elastic member (745), the sealing plate (741) is connected to the blocking plate (795) via a connecting rope (746), and a fixing block (792) for fixing the connecting rope (746) is arranged at a position of the blocking plate (795) corresponding to the connecting rope (746).

7. A uniform coating device according to claim 6, characterized in that: A limiting block (7411) is fixed on the upper end of the sealing plate (741), and a limiting groove (7111) for the limiting block (7411) to move is provided on the guide ring (711) at a position corresponding to the limiting block (7411).

8. A uniform coating device according to claim 6, characterized in that: The limiting member comprises a fixing plate (77) fixed to the installation box (71) and located on one side of the moving direction of the blocking plate (795), a micro switch (78) fixed to the fixing plate (77), and an electric telescopic rod (75) arranged on the inner bottom wall of the installation box (71), the micro switch (78) being electrically connected to the electric telescopic rod (75), a mounting groove (7103) for placing the electric telescopic rod (75) being provided on the installation box (71), and a fixing hole (7902) for fixing the electric telescopic rod (75) being provided at a position of the blocking plate (795) corresponding to the electric telescopic rod (75).

9. A uniform coating device according to claim 8, characterized in that: The support member (76) comprises a push plate (794) fixed to a side of the blocking plate (795) away from the material guide ring (711) and a support rod (761) fixed to a side of the push plate (794) away from the material guide ring (711) and passing through the installation box (71); the support rod (761) is located between the push plate (794) and the installation box (71) and is sleeved with a second elastic member (762).

10. A uniform coating device according to claim 1, characterized in that: First guide wheels (3) for guiding the cloth (2) are arranged on both sides of the upper end of the paint box (1).

Images