A shirt washing machine

Abstract

This utility model discloses a shirt washing machine, including a washing tank, a support, a lead screw, a sliding frame, a washing liquid cylinder, and a stirring system. The support is fixed to the top of the washing tank and has an array of through holes. The lead screw is horizontally installed above the support and drives the sliding frame to reciprocate through a ball bearing nut seat. The washing liquid cylinder is fixed on the sliding frame, and its bottom opening is periodically aligned and offset with the through holes of the support to achieve uniform distribution of the washing agent. The stirring system adopts a dual-shaft design, which can rotate in the same or opposite directions. This utility model achieves uniform distribution and efficient mixing of the washing agent through the geometric alignment and distribution mechanism of the sliding washing liquid cylinder and the through hole array, combined with the synergistic stirring of the dual-shaft design. It improves the uniformity of the washing agent distribution, shortens the mixing time, and enhances the system reliability, making it particularly suitable for washing lightweight fabrics such as shirts.

Description

Technical Field

[0001] This utility model relates to a shirt washing machine. Background Technology

[0002] As a common garment, shirts require careful cleaning, which has always been an important aspect of clothing care. With the improvement of people's living standards and the enhancement of environmental awareness, the requirements for cleaning lightweight fabrics such as shirts are constantly increasing. Cleaning must be effective while minimizing damage to the fabric, and water and detergent usage must be conserved.

[0003] Currently, shirt cleaning equipment is mainly divided into two types: household and commercial. Household washing machines typically use a drum or pulsator design, which is easy to operate, but has limited professional cleaning capabilities for delicate fabrics such as shirts. Commercial laundry equipment includes large industrial washing machines, dry cleaning equipment, and specialized shirt cleaning devices. While these devices are more targeted, they still have shortcomings in the even distribution and efficient use of cleaning agents.

[0004] Traditional commercial shirt cleaning equipment mainly uses the following methods for detergent preparation and distribution:

[0005] The first type is centralized injection. This method typically involves setting one or more inlets at fixed locations within the cleaning tank, pouring the cleaning agent in all at once or injecting it via a pumping system. While this method is simple in structure, the distribution of the cleaning agent within the tank is extremely uneven, often resulting in excessively high concentrations of cleaning agent near the inlet points, while areas far from the inlet points have insufficient cleaning agent, leading to uneven cleaning, localized over-cleaning, or under-cleaning.

[0006] The second type is the fixed spray type. A fixed spray pipe or nozzle array is installed above the washing tank, spraying the cleaning agent into the tank through a pressure system. While the distribution is more even than the first method, the nozzles are prone to clogging, especially when using additives containing solid particles or high viscosity, resulting in high maintenance costs and poor reliability. Furthermore, the fixed spray pressure and angle make it difficult to adapt to the washing needs of different quantities and types of shirts.

[0007] The third type is the circulating pump type. A circulating pump draws the cleaning solution from the bottom of the cleaning tank and then returns it to the top through pipelines. While this method promotes cleaning solution circulation, it still cannot avoid uneven concentration during initial addition and requires an additional pumping system, increasing equipment complexity and failure rate.

[0008] In terms of mixing, existing technologies also have many shortcomings:

[0009] Most cleaning equipment uses a single-shaft agitation method, which can easily create dead zones during the agitation process. In some areas, the cleaning solution has poor flowability, affecting the cleaning effect. At the same time, the unidirectional rotation agitation method can easily cause thin fabrics such as shirts to get tangled on the agitation shaft, which not only reduces cleaning efficiency but may also damage the fabric.

[0010] In addition, in the existing technology, the preparation and stirring of cleaning agents are usually two separate processes. The cleaning agent is added first, and then the stirring is started. This separation in time leads to unevenness in the initial cleaning stage, and it takes a long time to reach the ideal mixing state. This wastes time and fails to give full play to the effectiveness of the cleaning agent. Utility Model Content

[0011] The purpose of this invention is to provide a shirt washing machine. This shirt washing machine features uniform distribution of cleaning agent, efficient mixing, simple and reliable structure, and convenient maintenance.

[0012] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0013] A shirt washing machine includes: a washing tank for holding shirts and washing liquid; a support frame horizontally fixed to the top of the washing tank, the support frame having an array of through holes along the length of the washing tank; a lead screw horizontally mounted above the support frame, supported at both ends by bearing seats, the lead screw being parallel to the direction of the through hole array; a sliding frame connected to the lead screw via ball nut seats, capable of linear reciprocating motion along the lead screw; a washing liquid cylinder fixed to the upper part of the sliding frame, having an opening at the bottom, the opening being periodically aligned and misaligned with the through hole array on the support frame; a first motor driving the lead screw to rotate via a transmission mechanism; and a stirring system including a stirring shaft and a stirring arm disposed within the washing tank.

[0014] The present invention is further configured such that the aperture of the through-hole array is 6-14mm and the hole spacing is 40-120mm, and the holes are evenly distributed on the support, covering the entire length of the cleaning tank.

[0015] The present invention is further configured such that: the pitch of the lead screw is 3-12mm / rev, the rotation speed is 30-120rpm, and the moving speed of the sliding frame is controlled by adjusting the lead screw parameters.

[0016] The present invention is further configured such that: the first motor is a bidirectional reversible motor, which can perform forward and reverse rotation control according to a set program to realize the reciprocating motion of the sliding frame.

[0017] The present invention is further configured such that: the first motor drives the lead screw through a transmission mechanism consisting of pulley one, a belt, and pulley two.

[0018] The present invention is further configured such that the stirring system includes two stirring shafts, namely a first stirring shaft and a second stirring shaft, wherein the first stirring shaft is driven by a first motor and the second stirring shaft is driven by a second motor.

[0019] The present invention is further configured such that: the bottom opening of the cleaning fluid cylinder is flat and in close contact with the upper surface of the bracket; when the opening is aligned with the through hole, the cleaning fluid flows into the cleaning tank by gravity; when the opening is misaligned with the through hole, the fluid flow is cut off.

[0020] In summary, this utility model has the following beneficial effects:

[0021] Uniform solution distribution: Through the geometric alignment and distribution mechanism of the sliding cleaning liquid cylinder-through-hole array, the cleaning liquid cylinder moves back and forth along the length of the cleaning tank with the sliding frame, intermittently aligning with the through-hole array on the support, thus achieving uniform distribution of the cleaning agent along the entire length of the cleaning tank. Compared with traditional fixed-point dispensing or fixed-nozzle methods, this structure avoids the problems of local over-concentration or uneven distribution of cleaning agent.

[0022] High-efficiency mixing: Employing a dual-shaft collaborative working mode, the two shafts can rotate in the same or opposite directions, forming a circulating flow field with rising in the middle and falling at the ends, improving the mixing efficiency of the cleaning solution. Simultaneously, the shafts can alternately rotate forward and backward according to a set cycle, effectively preventing thin fabrics such as shirts from becoming entangled on the shafts during mixing. The movement of the cleaning solution cylinder and the mixing process are coupled in time and space, forming a simultaneous addition and mixing working mode.

[0023] Reliable anti-clogging structure: Utilizing an alignment-misalignment geometric control method instead of traditional valves or nozzles, liquid flow is controlled by the relative position of the bottom opening of the cleaning fluid cylinder and the through-hole of the support. The through-hole diameter is relatively large (6-14mm), making it less prone to clogging by dirt, and particularly suitable for cleaning scenarios containing suspended solids or adhesive additives. This valveless anti-clogging design significantly improves the long-term operational reliability of the system, reducing maintenance frequency and costs.

[0024] Adjustable parameters: Core parameters of the screw-sliding frame mechanism, such as screw pitch (3-12mm / rev), screw speed (30-120rpm), through-hole diameter (6-14mm), and hole spacing (40-120mm), can all be adjusted as needed to adapt to the cleaning requirements of different quantities and levels of soiling of clothing. Simultaneously, the volume of the cleaning liquid cylinder is replaceable to match different cleaning agent dosages. This parametric design improves the adaptability and scalability of the equipment.

[0025] Simplified structure and convenient maintenance: The screw-ball bearing nut transmission mechanism directly converts the rotational motion of the motor into the reciprocating linear motion of the sliding frame, resulting in a simple and compact structure. The first motor can drive both the screw and the stirring shaft simultaneously, reducing the number of motors and the complexity of the transmission. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of the shirt washing machine of this utility model;

[0027] Figure 2 This is a top view of the structure of this utility model.

[0028] Figure label:

[0029] 1. Cleaning tank; 2. Support frame; 3. Through-hole array; 4. Lead screw; 5. Bearing seat; 7. Sliding frame; 9. Cleaning liquid cylinder; 11. Stirring shaft; 12. Stirring arm; 13. First motor; 14. Belt pulley one; 15. Belt; 16. Belt pulley two; 17. Second motor. Detailed Implementation

[0030] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] like Figure 1 , Figure 2 As shown, this utility model provides a shirt washing machine, which mainly consists of five parts: a support system, a drive system, a moving system, a liquid dispensing system, and a stirring system.

[0032] The support system includes a washing tank 1 and a support frame 2. The washing tank 1 is a rectangular box structure used to hold shirts and washing solution. The support frame 2 is horizontally fixed to the top of the washing tank 1, with a flat upper surface, serving as the basic support surface for the solution dispensing system.

[0033] A through-hole array 3 is provided on the support 2 along its longitudinal direction (i.e., the length direction of the cleaning tank). The through-hole array 3 has a hole diameter of 6-14mm and a hole spacing of 40-120mm, and is evenly distributed on the support, covering the entire length of the cleaning tank. In the areas near the two ends of the cleaning tank, the hole spacing can be appropriately reduced to compensate for the mixing effect in the end areas. The upper surface of the support 2 is machined to ensure that it can fit flat and adhering to the bottom of the cleaning liquid cylinder 9.

[0034] The drive system includes a first motor 13, a second motor 17, and a transmission assembly. Both the first motor 13 and the second motor 17 are bidirectional reversible motors, capable of forward and reverse rotation control according to a set program. The first motor 13 drives a second pulley 16 to rotate via a pulley 14 and a belt 15 on its output shaft. The second pulley 16 is connected and fixed to the lead screw 4 by a key, ensuring synchronous and slip-free transmission. The tension of the belt 15 is set by adjusting the distance between the pulleys and is heat-tightened after the initial installation and operation to ensure long-term stable transmission performance.

[0035] The lead screw 4 is horizontally mounted above the bracket 2, parallel to the direction of the through-hole array 3, and supported on the bracket 2 at both ends by bearing seats 5. In the bearing seats 5, an angular contact bearing is used on the side near the drive end, and a deep groove ball bearing is used on the other side. This configuration effectively bears the radial and axial loads of the lead screw 4 during operation, preventing axial movement. The lead screw 4 has a pitch of 3-12 mm / rev and a rotational speed of 30-120 rpm, which can be selected and adjusted according to actual cleaning requirements.

[0036] The moving system includes a sliding frame 7 and a ball bearing nut seat. The sliding frame 7 is a frame structure, and it is connected to the lead screw 4 via the ball bearing nut seat. The ball bearing nut seat contains circulating balls, which convert the rotational motion of the lead screw 4 into the linear motion of the sliding frame 7. A groove is provided in the middle of the support 2 for the sliding frame 7 to slide, thereby ensuring the limiting position of the sliding frame 7.

[0037] The solution preparation system mainly consists of a cleaning solution cylinder 9. The cleaning solution cylinder 9 is fixed to the upper part of the sliding frame 7 and reciprocates with the sliding frame. The cleaning solution cylinder 9 is a cylindrical or rectangular container with an opening at the bottom. The opening can be a single-hole or multi-hole design, and its size matches the through holes on the support 2.

[0038] The bottom opening of the cleaning fluid cylinder 9 is flush with the upper surface of the support 2. When the opening aligns with a through hole in the through-hole array 3, the cleaning fluid flows into the cleaning tank 1 by gravity; when they are misaligned, the fluid flow is interrupted. This periodic liquid distribution mechanism of alignment-inflow-misalignment-interruption ensures that the cleaning agent is evenly distributed along the length of the cleaning tank 1. The volume of the cleaning fluid cylinder 9 can be changed to different specifications according to actual cleaning needs, adapting to different cleaning agent dosage requirements.

[0039] The stirring system includes two stirring shafts 11 and stirring arms 12. The two stirring shafts 11 are vertically arranged inside the cleaning tank 1, with several stirring arms 12 evenly distributed on them. The length, angle, and shape of the stirring arms 12 are designed to create an effective stirring flow field during rotation. The first stirring shaft is driven by a first motor 13, and the second stirring shaft is driven by a second motor 17. The first motor 13 can simultaneously drive the first stirring shaft and the lead screw 4 via a branch transmission, reducing the number of motors and simplifying the structure.

[0040] The working principle of this utility model is as follows:

[0041] First, place the shirt into the washing tank 1, add an appropriate amount of water to the washing tank 1, and add the detergent or auxiliary agent to the washing liquid cylinder 9. Start the system and move the sliding frame 7 to the initial position (usually one end).

[0042] Next, the first motor 13 and the second motor 17 are started to begin the stirring process. The two stirring shafts 11 can rotate in the same direction or in opposite directions. At the same time, the first motor 13 drives the lead screw 4 to rotate via belt drive, and the lead screw 4 drives the sliding frame 7 to move via the ball nut seat, and the cleaning liquid cylinder 9 moves accordingly.

[0043] During the movement of the sliding frame 7, the bottom opening of the cleaning fluid cylinder 9 periodically aligns and misaligns with the array of through holes 3 on the support 2. When the opening aligns with a certain through hole, the cleaning fluid flows into the cleaning tank by gravity, achieving liquid distribution at that location; when the opening misaligns with the through hole, the fluid flow is interrupted. Through this intermittent alignment, the cleaning agent is evenly distributed to various locations along the length of the cleaning tank.

[0044] When the sliding frame 7 reaches one end of the track, the first motor 13 reverses, and the lead screw 4 rotates in the opposite direction, driving the sliding frame 7 to move in the opposite direction to complete another round of liquid dispensing along the length of the cleaning tank. The first motor 13 periodically reverses direction according to a set time to realize the reciprocating motion of the sliding frame 7.

[0045] Throughout the process, the addition and mixing of the cleaning agent are carried out simultaneously, forming a collaborative working mode of simultaneous addition and mixing. The cleaning agent is immediately dispersed by stirring after being added, avoiding the problem of excessively high local concentrations and improving cleaning efficiency and the utilization rate of the cleaning agent.

[0046] By adjusting parameters such as the pitch, rotation speed, through-hole diameter, and hole spacing of the lead screw 4, the speed and distribution density of the liquid can be flexibly controlled to adapt to the cleaning needs of different quantities and levels of soiling of clothing. For example, for lightly soiled shirts, a larger hole spacing and a faster sliding speed can be used; for heavily soiled areas, the hole spacing can be reduced or the end dwell time can be extended to enhance the liquid mixing effect.

[0047] After cleaning, the system can automatically enter the drainage and rinsing stage to complete the entire cleaning process. During maintenance, the cover plate on bracket 2 can be removed to clean the through-hole array 3, ensuring long-term stable operation.

[0048] Compared to existing technologies, this invention employs a geometrically aligned distribution mechanism of a sliding cleaning liquid cylinder-through-hole array, combined with the reciprocating drive of a lead screw-sliding frame-bidirectional motor and the coordinated stirring of dual stirring shafts. This achieves uniform distribution of the cleaning agent, efficient stirring, and a simplified structure, making it particularly suitable for cleaning lightweight fabrics such as shirts. This design avoids the problem of easy clogging of traditional valves, reduces maintenance frequency and costs, and improves the long-term operational reliability of the system. It has broad application prospects in the industrial and semi-industrial cleaning of shirts and other garments.

[0049] To verify the above technical solution, this application conducted the following experiments to verify the technical effect of the shirt washing machine.

[0050] 1. The experiment employed a comparative testing method, comparing the performance of this novel shirt cleaning machine with three traditional cleaning devices (centralized injection type, fixed spray type, and circulating pump type). The test samples were standard white cotton shirts, 10 shirts per batch, pre-treated with standard stains (a mixture of cooking oil, red wine, and dirt). The experiment was conducted under the same water temperature (30℃) and the same cleaning agent dosage (30ml / batch). Fluorescent tracers were added to the cleaning agent, and the uniformity of distribution was detected using ultraviolet light. The cleaning effect was evaluated by the standard stain removal rate; reliability was assessed through continuous operation testing; and maintenance time and cleaning efficiency data were recorded simultaneously.

[0051] 2. Technical Effect Comparison Table

[0052]

[0053] 3. Verification Conclusion

[0054] Comparative tests show that the shirt washing machine of this invention outperforms traditional washing equipment in terms of performance indicators. The sliding-type cleaning liquid cylinder-through-hole array liquid distribution mechanism improves the uniformity of cleaning agent distribution by about 80%. Fluorescence tracer tests show that the concentration variation coefficient along the length of the washing tank is only 8%, which is much lower than that of traditional centralized injection type (58%) and fixed spray type (35%), effectively solving the problems of local over-concentration and cleaning blind spots in traditional equipment.

[0055] The dual-shaft collaborative operation and simultaneous addition-mixing mode reduce the mixing time from 120 seconds to 48 seconds, increasing efficiency by 60%. Simultaneously, the rate of clothing tangling decreases from 32% to 8%, a reduction of 75%, significantly protecting delicate fabrics such as shirts. Stain removal rate tests show that, with the same detergent dosage, this invention improves cleaning effectiveness by approximately 30%.

[0056] The valveless geometric alignment and distribution design did not experience any clogging during 200 hours of continuous operation testing, while traditional fixed sprinkler systems experienced clogging on average once every 50 hours, improving system reliability by over 70%. Maintenance convenience tests showed that this invention reduces average monthly maintenance time by 50% and maintenance costs by approximately 40%.

[0057] The comprehensive evaluation results prove that this shirt washing machine has successfully solved the problems of uniformity, efficiency, reliability and ease of maintenance of traditional washing equipment through its structure. It is particularly suitable for shirt washing in industrial and semi-industrial environments and has broad application prospects.

Claims

1. A shirt washing machine characterized by, include: A cleaning tank (1) is used to hold shirts and cleaning solution; A bracket (2) is horizontally fixed to the top of the cleaning tank (1), and an array of through holes (3) is provided on the bracket (2) along the length of the cleaning tank; The lead screw (4) is horizontally installed above the bracket (2) and supported at both ends by bearing seats (5). The lead screw (4) is parallel to the direction of the through hole array (3). The sliding frame (7) is connected to the lead screw (4) via a ball nut seat and can reciprocate linearly along the lead screw (4); The cleaning liquid cylinder (9) is fixed on the upper part of the sliding frame (7) and has an opening at the bottom. The opening and the through hole array (3) on the bracket (2) can be periodically aligned and misaligned. The first motor (13) drives the lead screw (4) to rotate through the transmission mechanism; The stirring system includes a stirring shaft (11) and a stirring arm (12) disposed in the cleaning tank (1).

2. The shirt washing machine according to claim 1, characterized in that: The through-hole array (3) has a hole diameter of 6-14mm and a hole spacing of 40-120mm, and is evenly distributed on the bracket (2), covering the entire length of the cleaning box.

3. The shirt washing machine according to claim 1, characterized in that: The lead screw (4) has a pitch of 3-12 mm / rev and a rotation speed of 30-120 rpm. The moving speed of the sliding frame (7) is controlled by adjusting the lead screw parameters.

4. The shirt washing machine according to claim 1, characterized in that: The first motor (13) is a bidirectional reversible motor, which can perform forward and reverse control according to a set program to realize the reciprocating motion of the sliding frame (7).

5. The shirt washing machine according to claim 1, characterized in that: The first motor (13) drives the lead screw (4) through a transmission mechanism consisting of pulley one (14), belt (15) and pulley two (16).

6. The shirt washing machine according to claim 1, characterized in that: The stirring system includes two stirring shafts (11), namely a first stirring shaft and a second stirring shaft. The first stirring shaft is driven by a first motor (13), and the second stirring shaft is driven by a second motor (17).

7. The shirt washing machine according to claim 1, characterized in that: The bottom opening of the cleaning fluid cylinder (9) is flat and in close contact with the upper surface of the bracket (2). When the opening is aligned with the through hole, the cleaning fluid flows into the cleaning tank by gravity. When the opening is misaligned with the through hole, the fluid flow is cut off.

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