Control module of gantry type clothing printing pretreatment liquid spraying equipment
By combining a DC motor control component with a manual three-way valve, the problems of uneven spray volume and mechanical impact in the spraying equipment are solved, enabling dynamic spray volume adjustment and liquid switching, improving printing quality and equipment applicability, and extending service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-27
- Publication Date
- 2026-04-03
AI Technical Summary
Existing gantry-type garment printing pretreatment liquid spraying equipment cannot adjust the spray volume according to the table movement speed, resulting in uneven distribution, affecting printing quality and production efficiency. In addition, the equipment lacks a buffer function when the motor starts and stops, resulting in severe mechanical impact, short service life, and the spraying system can only use a single liquid, which limits its applicability.
The system employs a DC motor control component in conjunction with a control board to achieve buffered start and reverse rotation of the motor. It combines a manual three-way valve to switch the liquid, adjusts the spray volume through a pressure regulating plate, and uses a proximity switch to control the position of the control board to achieve dynamic adjustment of the nozzles and liquid switching.
It enables dynamic adjustment of spray volume based on table speed, improving printing quality and production efficiency, reducing mechanical impact, extending equipment lifespan, and supporting flexible switching between clean water and treatment liquid, thus expanding the equipment's applicability.
Smart Images

Figure CN224077704U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of control modules for garment spraying equipment, specifically a control module for a gantry-type garment printing pretreatment liquid spraying equipment. Background Technology
[0002] In garment printing production lines, pretreatment spraying is a crucial pretreatment step, aiming to evenly apply chemical agents to the fabric and lay the foundation for subsequent printing processes. Currently, the control modules of gantry-type garment printing pretreatment spraying equipment still have many shortcomings.
[0003] Existing spraying equipment typically uses fixed spraying parameters, making it impossible to manually adjust the spray volume based on the table's movement speed. This can lead to uneven distribution of the treatment liquid on the fabric, affecting printing quality and production efficiency. Furthermore, the lack of buffering during motor start-up and shutdown increases the risk of mechanical shock, shortening the equipment's lifespan. Additionally, most spraying systems can only use a single liquid, lacking the flexibility to switch between clean water and treatment liquid, limiting the equipment's applicability across different process stages. Extensive research has been conducted to address these issues. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a control module for a gantry-type garment printing pretreatment liquid spraying device, which can solve the problems in the prior art.
[0005] This utility model is achieved through the following technical solution: A control module for a gantry-type garment printing pretreatment liquid spraying device includes a housing and a DC motor. A platform is mounted on the housing, along with a first proximity switch and a second proximity switch. A first nozzle and a second nozzle are also mounted on the housing. The device is characterized by further including a control board, which is electrically connected to the DC motor via a DC motor control component. This DC motor control component provides buffering during forward and reverse starting of the DC motor. A 24V DC contactor is electrically connected to one side of the control board, and a water pump is electrically connected to one side of the 24V DC contactor. The water pump is connected to the pipelines of the first and second nozzles.
[0006] In a further technical solution, a pressure regulating plate is electrically connected to one side of the water pump.
[0007] A further technical solution is provided, wherein a manual three-way valve is provided on one side of the water pump, the water pump is connected to the manual three-way valve, one of the manual three-way valves is connected to the clean water pipeline, and the other of the manual three-way valves is connected to the treatment liquid pipeline.
[0008] In a further technical solution, a diaphragm pump is also connected to one side of the clean water pipeline.
[0009] In a further technical solution, a rocker switch is electrically connected to one side of the diaphragm pump, and the opening degree of the diaphragm pump is controlled by the rocker switch.
[0010] A further technical solution includes a DC motor control component comprising a 1K potentiometer, a TTL to RS485 module, and a DC motor driver. The 1K potentiometer is electrically connected to the main control board, the main control board is electrically connected to the TTL to RS485 module, the TTL to RS485 module is electrically connected to the DC motor driver, and the DC motor driver is electrically connected to the DC motor.
[0011] In a further technical solution, after the 1K potentiometer is electrically connected to the main control board, the main control board outputs a 5V voltage to the potentiometer, and the potentiometer is adjusted by the 0-5V voltage before being fed back to the main control board.
[0012] In a further technical solution, the main control board converts the analog signal 0-5V into a 485 communication signal via a TTL-to-RS485 converter and transmits it to the DC motor driver, enabling the DC motor to switch between 0-100% speed range to adjust its operating speed.
[0013] A further technical solution also includes a spray start button, which is electrically connected to the control board.
[0014] The beneficial effects of this utility model are: First, by using a 1K potentiometer, a main control board, a TTL to RS485 module, and a DC motor driver, the acceleration and deceleration time of the DC motor driver can be adjusted, thereby realizing the buffer function of DC motor operation.
[0015] Second, by setting a manual three-way valve, the first and second nozzles can spray treatment liquid or clean water to achieve spraying or cleaning work.
[0016] Third, the overall walking speed of the equipment is controlled by using a DC motor control component. Combined with the ability to adjust the water pump using a pressure regulating plate, the spray volume of the first and second nozzles can be adjusted so that when the platform moves faster, the spray volume is less and when the platform moves slower, the spray volume is more, forming a dynamic and independent adjustment mechanism that is very convenient and quick, ensuring the spraying effect. Attached Figure Description
[0017] For ease of explanation, the present invention will be described in detail below with reference to specific embodiments and accompanying drawings.
[0018] Figure 1 A schematic diagram of a gantry-type garment printing pretreatment liquid spraying device;
[0019] Figure 2 for Figure 1A schematic diagram of the internal structure of a gantry-type garment printing pretreatment liquid spraying device;
[0020] Figure 3 for Figure 1 A schematic diagram of the connection of the control module of a gantry-type garment printing pretreatment liquid spraying equipment;
[0021] Figure 4 for Figure 3 Connection diagram of the medium-sized water pump;
[0022] Figure 5 This is an assembly system diagram of the control module of a gantry-type garment printing pretreatment liquid spraying equipment. Detailed Implementation
[0023] like Figures 1-5 As shown, this utility model will be described in detail. For ease of description, the directions mentioned below are defined as follows: the directions of up, down, left, right, front, and back mentioned below are the same as... Figure 1 The projection relationship is consistent in the up, down, left, right, front, and back directions. The control module of the gantry-type garment printing pretreatment liquid spraying device of this utility model includes a box, a platform is provided on the box, the platform is driven by a DC motor to move the moving component back and forth, a first proximity switch and a second proximity switch for limiting the platform are provided on the box, and a spray head is also provided on the box (a first spray head and a second spray head can be provided in the specific setting). The above content is the prior art, which is described in detail in the patent document with publication number CN222469477U and title "A Gantry-type Garment Printing Pretreatment Liquid Spraying Device".
[0024] Advantageously, it also includes a control board, which is electrically connected to a DC motor via a DC motor control component. The DC motor control component is used to buffer the DC motor when it starts in both forward and reverse directions. A 24V DC contactor is electrically connected to one side of the control board, and a water pump is electrically connected to one side of the 24V DC contactor. The water pump is connected to the pipelines of the first and second nozzles and is used to supply solution to the first and second nozzles.
[0025] Advantageously, a pressure regulating plate is electrically connected to one side of the water pump, which controls the pumping volume of the water pump to indirectly adjust the spray flow rate of the first and second nozzles.
[0026] Advantageously, a manual three-way valve is provided on one side of the water pump, the water pump is connected to the manual three-way valve, one of the manual three-way valves is connected to the clean water pipeline, the other of the manual three-way valves is connected to the treatment liquid pipeline, and the clean water pipeline and the treatment liquid pipeline are respectively connected to the clean water tank and the treatment liquid tank.
[0027] Advantageously, a diaphragm pump is also connected to one side of the clean water pipeline, and a boat-shaped switch is electrically connected to one side of the diaphragm pump to control the opening degree of the diaphragm pump. A water pipe is connected to the outlet side of the diaphragm pump to flush the equipment.
[0028] Advantageously, the DC motor control component includes a 1K potentiometer, a TTL to RS485 module, and a DC motor driver. The 1K potentiometer is electrically connected to the main control board, the main control board is electrically connected to the TTL to RS485 module, the TTL to RS485 module is electrically connected to the DC motor driver, and the DC motor driver is electrically connected to the DC motor.
[0029] Advantageously, the DC motor driver used is the MIDCB2450SC model.
[0030] Advantageously, after the 1K potentiometer is electrically connected to the main control board, the main control board outputs a 5V voltage to the potentiometer, which can be adjusted by the voltage from 0 to 5V, and then the voltage is fed back to the main control board.
[0031] Advantageously, the main control board converts the analog signal 0-5V into a 485 communication signal through a TTL to RS485 converter and transmits it to the DC motor driver, enabling the DC motor to switch between speeds in the 0-100% range and adjust the forward and reverse running speed of the DC motor.
[0032] Advantageously, it also includes a spray start button, which is electrically connected to the control board and is used to start the equipment.
[0033] Advantageously, the first proximity switch and the second proximity switch are electrically connected to the control board and are used to limit the position of the platform movement.
[0034] Through the overall electrical connections of the device, the forward and reverse rotation speed of the DC motor determines the speed at which the platform moves. The pressure regulating plate controls the operation of the water pump, which changes the amount of cleaning fluid sprayed by the pump, thereby changing the spray volume of the first and second nozzles. In actual cases, when the platform moves faster, the spray volume is smaller. The speed at which the platform moves is directly related to the working cycle.
[0035] The control module is switched on and off using the spray start button. The proximity switch is used to limit the range of movement of the platform. When the platform moves to the proximity switch, the main control board controls the DC motor to start or stop.
[0036] The main control board controls the water pump via a 24V DC contactor. During operation, the flow of clean water or treatment liquid into the water pump can be adjusted via a manual three-way valve. The water pump then supplies clean water or treatment liquid to the first and second nozzles. When clean water is supplied, it is used to spray and clean the gantry-type garment printing pretreatment spray equipment. When treatment liquid is supplied, it is used to spray the garment surface for pretreatment. The pumping volume of the water pump can be adjusted via the pressure regulating plate, which indirectly adjusts the spraying volume of the first and second nozzles.
[0037] During equipment cleaning, the diaphragm pump can be started by using a boat-shaped switch. The diaphragm pump pumps clean water into the water pipe, which can move flexibly. Personnel can hold the water pipe to further rinse the gantry-type garment printing pretreatment liquid spraying equipment.
[0038] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without creative effort should be included within the protection scope of this utility model; therefore, the protection scope of this utility model should be determined by the scope defined in the claims.
Claims
1. A control module for a gantry-type garment printing pretreatment liquid spraying device, comprising a housing and a DC motor, wherein a platform is provided on the housing, a first proximity switch and a second proximity switch are provided on the housing, and a first spray head and a second spray head are also provided on the housing, characterized in that, It also includes a control board, which is electrically connected to a DC motor via a DC motor control component. The DC motor control component is used to buffer the DC motor when it starts in both forward and reverse directions. A water pump is electrically connected to one side of the control board, and the water pump is connected to the pipelines of the first and second nozzles.
2. The control module of the gantry-type garment printing pretreatment liquid spraying equipment according to claim 1, characterized in that: A pressure regulating plate is also electrically connected to one side of the water pump.
3. The control module of the gantry-type garment printing pretreatment liquid spraying equipment according to claim 1, characterized in that: A manual three-way valve is installed on one side of the water pump. The water pump is connected to the manual three-way valve. One of the manual three-way valves is connected to the clean water pipeline, and the other of the manual three-way valve is connected to the treatment liquid pipeline.
4. The control module of the gantry-type garment printing pretreatment liquid spraying equipment according to claim 3, characterized in that: A diaphragm pump is also connected to one side of the clean water pipeline.
5. The control module of the gantry-type garment printing pretreatment liquid spraying equipment according to claim 4, characterized in that: A rocker switch is electrically connected to one side of the diaphragm pump, and the opening degree of the diaphragm pump is controlled by the rocker switch.
6. The control module of the gantry-type garment printing pretreatment liquid spraying equipment according to claim 1, characterized in that: It also includes a spray start button, which is electrically connected to the control board.
7. The control module of a gantry-type garment printing pretreatment liquid spraying device according to any one of claims 1-6, characterized in that: The DC motor control component includes a 1K potentiometer, a TTL to RS485 module, and a DC motor driver. The 1K potentiometer is electrically connected to the main control board, the main control board is electrically connected to the TTL to RS485 module, the TTL to RS485 module is electrically connected to the DC motor driver, and the DC motor driver is electrically connected to the DC motor.
8. The control module of the gantry-type garment printing pretreatment liquid spraying equipment according to claim 7, characterized in that: After the 1K potentiometer is electrically connected to the main control board, the main control board outputs a 5V voltage to the potentiometer. The potentiometer is adjusted by the 0-5V voltage and then fed back to the main control board.
9. The control module of the gantry-type garment printing pretreatment liquid spraying equipment according to claim 7, characterized in that: The main control board converts the analog signal 0-5V into a 485 communication signal via a TTL-to-RS485 converter and transmits it to the DC motor driver, enabling the DC motor to switch between 0-100% speed range to adjust its operating speed.
Citation Information
Patent Citations
Gantry type clothing printing pretreatment liquid spraying equipment
CN222469477U