Leather color spraying machine
By employing a rectangular frame, servo motor, and air pump in the leather spraying machine, the problem of atomized dye liquor leakage is solved, achieving a sealed leather dyeing process and effective collection of dye liquor, thus improving the safety and efficiency of the working environment.
Patent Information
- Application Number
- CN202423248677.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-27
AI Technical Summary
In existing leather dyeing machines, the atomized dye solution can easily escape into the working environment during the dyeing process, resulting in poor airtightness.
The design employs a rectangular frame and beams, combined with a servo motor and lead screw and nut system to achieve sealed transport of leather. During the sealing process, an air pump and electromagnetic control valve are used to control the elastic membrane, creating a negative pressure environment to prevent dye liquor from escaping. A collection tank is also provided to collect residual dye liquor.
It effectively reduces the leakage of atomized dye solution, improves the airtightness of the dyeing process, ensures that the dye solution does not easily leak during the dyeing process of leather, and can also effectively prevent the dye solution from escaping when the leather is removed.
Smart Images
Figure CN223592741U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of leather coloring technology, specifically to a leather spraying machine. Background Technology
[0002] Leather is animal hide that has undergone physical and chemical processing, such as hair removal and tanning, to become deformed and less prone to decay. During the production stage, leather may be dyed as needed to enhance its appearance and value. Currently, leather is dyed using a color-spraying machine.
[0003] Existing leather spraying machines transport leather to the spraying station via a conveyor line for dyeing. The airtightness of the spraying station is generally poor, which can easily cause the atomized dye to escape into the working environment. Utility Model Content
[0004] To address the aforementioned technical deficiencies, this invention provides a leather spraying machine that reduces the escaping of atomized dye solution during the leather dyeing process.
[0005] This utility model discloses a leather color spraying machine, including a frame, with guide columns horizontally spaced on the frame, and a rectangular frame slidably mounted on the guide columns. The length of the guide columns is at least 1.5 times the length of the rectangular frame. A crossbeam is located in the middle of the rectangular frame, perpendicular to the guide columns, and its upper end face is flush with the upper end face of the rectangular frame. A placement plate is horizontally mounted inside the rectangular frame, and its perimeter is sealed and fixed to the inner sidewall of the rectangular frame. The upper end face of the placement plate is sealed and fixed to the lower end face of the crossbeam. A lead screw is rotatably mounted on the frame below the rectangular frame, parallel to the guide columns, and a screw thread is mounted on the lead screw. The screw nut is fixedly connected to the lower side of the rectangular frame. A servo motor connected to the screw drive is installed on the frame. A box with an opening facing downward is installed above the middle of the guide column. The box is connected to the frame through a connecting rod. The width of the box is equal to the width of the rectangular frame, and the length of the box is equal to half the length of the rectangular frame. The lower end face of the box is flush with the upper end face of the rectangular frame. The machine also includes a dye bath, a controller, and an atomizer. The atomizer includes an atomizing nozzle, which is located on the upper side of the box. The liquid inlet of the atomizer is connected to the bottom of the dye bath. The controller is electrically connected to the servo motor and the atomizer.
[0006] The principle of the above technical solution is as follows: leather is placed on a placement plate on one side of the crossbeam. The controller controls the servo motor to move the rectangular frame through the lead screw and lead screw nut, so that the leather is located inside the box. There is only a small gap between the lower side of the box and the rectangular frame and the crossbeam, which has good sealing performance. The controller controls the atomizer to spray the dye in the dye box through the atomizing nozzle. The atomized dye sinks and evenly dyes the leather. The good sealing performance during dyeing reduces the escape of the atomized dye. During this period, the worker can place the leather to be dyed on the placement plate on the other side of the crossbeam. After the dyeing is completed, the controller controls the servo motor to move the dyed leather out of the box and move the leather to be dyed into the box.
[0007] Furthermore, during the process of removing the dyed leather from the box, to prevent the atomized dye solution inside the box from escaping, a vacuum pump, an electromagnetic control valve, an elastic membrane, and a sponge baffle are included. The sponge baffle is located at the lower end of the inner wall of the box. An elastic membrane is horizontally installed inside the box above the atomizing nozzle, and the elastic membrane is sealed and fixed to the inner wall of the box on all four sides. The inside of the box above the elastic membrane is connected to the vacuum pump through a pipe, and an electromagnetic control valve is installed on the pipe. The electromagnetic control valve and the vacuum pump are electrically connected to a controller. The electromagnetic control valve is a two-position three-way electromagnetic control valve. The function of the electromagnetic control valve is to allow the inside of the box above the elastic membrane to be controlled by an electromagnetic valve. The valve can be connected to the outside or to a vacuum pump. When the dyed leather is removed from the box, the inside of the box above the elastic membrane is connected to the vacuum pump. The vacuum pump continuously draws air, creating a negative pressure inside the box above the elastic membrane, causing the elastic membrane to gradually bulge upwards. At this time, the atomized dye liquid inside the box below the elastic membrane cannot escape from the box. When the leather to be dyed is moved into the box, the sponge baffle contacts the rectangular frame and the crossbeam. The electromagnetic control valve connects the inside of the box above the elastic membrane to the outside, and the elastic membrane resets. During the reset process, the atomized dye liquid inside the box below the elastic membrane cannot escape from the box due to the filtration of the sponge baffle.
[0008] Furthermore, the atomized dye solution will accumulate on the inner wall of the chamber and flow downwards. In order to better collect this part of the dye solution, an upward-facing collection trough is provided on the inner wall of the lower side of the chamber. The bottom of the collection trough is connected to the dye solution box through a collection pipe.
[0009] The leather coloring machine obtained by this utility model has the following advantages: during the leather coloring process, it has good sealing performance, the atomized dye liquid is not easy to escape, and the atomized dye liquid is also not easy to escape during the process of removing the colored leather. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;
[0011] Figure 2 In Embodiment 1 of this utility model Figure 1A magnified view of a portion of the image. Detailed Implementation
[0012] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.
[0013] Example 1:
[0014] like Figure 1 , 2 As shown, this utility model discloses a leather spraying machine, including a frame 1. Guide columns 6 are horizontally spaced on the frame 1, and a rectangular frame 5 is slidably mounted on the guide columns 6. The guide columns 6 are 3.5 meters long, and the rectangular frame 5 is 2 meters long. A crossbeam 8 is positioned in the middle of the rectangular frame 5, perpendicular to the guide columns 6, with its upper surface flush with the upper surface of the rectangular frame 5. A placement plate 7 is horizontally mounted inside the rectangular frame 5, its perimeter sealed and fixed to the inner sidewalls of the rectangular frame 5, and its upper surface sealed and fixed to the lower surface of the crossbeam 8. A lead screw 2 is rotatably mounted on the frame 1 below the rectangular frame 5, parallel to the guide columns 6, and a lead screw nut is mounted on the lead screw 2. 4. The lead screw nut 4 is fixedly connected to the lower side of the rectangular frame 5. The frame 1 is equipped with a servo motor 3 that is connected to the lead screw 2 for transmission. The upper part of the guide column 6 is equipped with a box 9 with the opening facing downward. The box 9 is connected to the frame 1 through the connecting rod 12. The width of the box 9 is equal to the width of the rectangular frame 5, and the length of the box 9 is equal to half the length of the rectangular frame 5. The lower end face of the box 9 is flush with the upper end face of the rectangular frame 5. It also includes a dye bath 17, a controller, and an atomizer 16. The atomizer 16 includes an atomizing nozzle 11, which is located on the upper side inside the box 9. The liquid inlet end of the atomizer 16 is connected to the bottom of the dye bath 17. The controller is electrically connected to the servo motor 3 and the atomizer 16 respectively.
[0015] The principle of the above technical solution is as follows: leather is placed on the placement plate 7 on one side of the crossbeam 8. The controller controls the servo motor 3 to move the rectangular frame 5 through the lead screw 2 and lead screw nut 4, so that the leather is located inside the box 9. There is only a small gap between the lower side of the box 9 and the rectangular frame 5 and the crossbeam 8, which has good sealing performance. The controller controls the atomizer 16 to spray the dye liquid in the dye tank 17 through the atomizing nozzle 11. The atomized dye liquid sinks and evenly dyes the leather. The sealing performance is good during the dyeing process, which reduces the escape of the atomized dye liquid. During this period, the worker can place the leather to be dyed on the placement plate 7 on the other side of the crossbeam 8. After the dyeing is completed, the controller controls the servo motor 3 to move the dyed leather out of the box 9 and move the leather to be dyed into the box 9.
[0016] During the process of removing the dyed leather from the box 9, to prevent the atomized dye solution inside the box 9 from escaping, a vacuum pump 15, an electromagnetic control valve 14, an elastic membrane 10, and a sponge baffle 20 are included. The sponge baffle 20 is located at the lower end of the inner wall of the box 9. An elastic membrane 10 is horizontally installed inside the box 9 above the atomizing nozzle 11. The elastic membrane 10 is sealed and fixed to the inner wall of the box 9 on all sides. The interior of the box 9 above the elastic membrane 10 is connected to the vacuum pump 15 through a pipe 13. An electromagnetic control valve 14 is installed on the pipe 13. The electromagnetic control valve 14 and the vacuum pump 15 are electrically connected to a controller. The electromagnetic control valve 14 is a two-position three-way electromagnetic control valve. The function of the electromagnetic control valve 14 is to allow the interior of the box 9 above the elastic membrane to pass through the air via an electromagnetic valve. The control valve 14 can be connected to the outside or to the vacuum pump 15. When the dyed leather is moved out of the box 9, the inside of the box 9 above the elastic membrane 10 is connected to the vacuum pump 15. The vacuum pump 15 continuously draws air, making the inside of the box 9 above the elastic membrane 10 negative pressure. The elastic membrane 10 gradually bulges upward. At this time, the atomized dye liquid inside the box 9 below the elastic membrane 10 cannot escape from the box 9. When the leather to be dyed is moved into the box 9, the sponge baffle 20 on the lower end face of the box 9 contacts the rectangular frame 5 and the crossbeam 8. The electromagnetic control valve 14 connects the inside of the box 9 above the elastic membrane 10 to the outside, and the elastic membrane 10 resets. During the reset process, the atomized dye liquid inside the box 9 below the elastic membrane 10 also cannot escape from the box 9.
[0017] The atomized dye solution will accumulate on the inner wall of the box 9 and flow downward. In order to better collect this part of the dye solution, an upward-facing collection trough 19 is provided on the inner wall of the lower side of the box 9 along the circumference. The bottom of the collection trough 19 is connected to the dye solution box 17 through the collection pipe 18.
Claims
1. A leather color spraying machine, characterized in that, The system includes a frame (1), on which guide posts (6) are horizontally spaced. A rectangular frame (5) is slidably mounted on the guide posts (6). The length of the guide posts (6) is more than 1.5 times the length of the rectangular frame (5). A crossbeam (8) is mounted in the middle of the rectangular frame (5). The crossbeam (8) is perpendicular to the guide posts (6) and its upper end face is flush with the upper end face of the rectangular frame (5). A placement plate (7) is horizontally mounted inside the rectangular frame (5). The placement plate (7) is sealed and fixed to the inner sidewall of the rectangular frame (5) on all four sides. The upper end face of the placement plate (7) is sealed and fixed to the lower end face of the crossbeam (8). A lead screw (2) is rotatably mounted on the frame (1) below the rectangular frame (5). The lead screw (2) is parallel to the guide posts (6). A lead screw nut (4) is mounted on the lead screw (2). The lower side of the rectangular frame (5) is fixedly connected. The frame (1) is equipped with a servo motor (3) that is connected to the lead screw (2). The upper part of the guide column (6) is equipped with a box (9) with the opening facing downward. The box (9) is connected to the frame (1) through the connecting rod (12). The width of the box (9) is equal to the width of the rectangular frame (5). The length of the box (9) is equal to half the length of the rectangular frame (5). The lower end face of the box (9) is flush with the upper end face of the rectangular frame (5). It also includes a dye bath (17), a controller, and an atomizer (16). The atomizer (16) includes an atomizing nozzle (11). The atomizing nozzle (11) is located on the upper side inside the box (9). The liquid inlet end of the atomizer (16) is connected to the bottom of the dye bath (17). The controller is electrically connected to the servo motor (3) and the atomizer (16) respectively.
2. The leather color spraying machine according to claim 1, characterized in that, It also includes an air pump (15), an electromagnetic control valve (14), an elastic membrane (10), and a sponge baffle (20). The sponge baffle (20) is set at the lower end of the inner wall of the box (9). An elastic membrane (10) is horizontally set inside the box (9) above the atomizing nozzle (11). The elastic membrane (10) is sealed and fixed to the inner wall of the box (9) around its perimeter. The box (9) above the elastic membrane (10) is connected to the air pump (15) through a pipe (13). An electromagnetic control valve (14) is set on the pipe (13). The electromagnetic control valve (14) and the air pump (15) are electrically connected to the controller. The electromagnetic control valve (14) is a two-position three-way electromagnetic control valve (14).
3. A leather color spraying machine according to claim 2, characterized in that, An upward-facing collection trough (19) is provided on the inner wall of the lower side of the box (9) along the circumferential direction. The bottom of the collection trough (19) is connected to the dye bath (17) through a collection pipe (18).