Cloth thickness sensing device for coding machine

Abstract

The utility model belongs to the technical field of cloth coding machine equipment, and particularly relates to a cloth thickness sensing device for a coding machine, which comprises a fixed frame fixedly arranged on a carrying table, a guide sleeve is fixedly arranged on the fixed frame through a mounting part, a movable rod which moves along with the change of the cloth thickness is arranged in the guide sleeve in a sliding manner, and the movable rod is connected with the carrying table. A pressing block abutting against cloth is fixedly assembled at one end of the movable rod, a sensing component used for receiving signals is fixedly assembled on the fixing frame, and a triggering component used for triggering the sensing component is assembled on the movable rod. The defects of complex and easily-interfered optical distance measurement are avoided through simple and visual mechanical structure linkage, a high-sensitivity and high-stability detection feedback loop is built, cloth color interference is bypassed from the principle level, focusing mechanical position change is converted into an accurate photoelectric signal, high-precision thickness monitoring is achieved, and the measurement accuracy is improved. And the product quality consistency is effectively improved, and a foundation is built for efficient operation of the industry.

Description

Technical Field

[0001] The utility model belongs to the technical field of cloth coding machine equipment, in particular to a cloth thickness sensing device for a coding machine. Background Art

[0002] Fabric coding machine is a device widely used in the textile industry. It can clearly print various information on fabrics, such as batch number, specifications, ingredients, production date, size, washing instructions and brand logo, etc. Fabric coding machine is widely used in textile, clothing, washing cloth and other industries. In the textile industry, it helps manufacturers to classify, count and manage inventory of fabrics; in the clothing industry, it helps companies print brand logos and washing instructions and other information on fabrics.

[0003] Existing fabric coding machines are mainly composed of computer systems, sensors, motors, controllers and mechanical devices. The working principle is: the fabric is placed on the coding machine, the controller directs the motor to drive the mechanical device to perform the coding operation, and finally achieves fast and efficient automatic coding. The sensor will detect its working status.

[0004] Currently, existing fabric coding machines have the following shortcomings: the traditional method of relying on laser ranging to control fabric thickness-related operations is severely restricted by the inherent optical properties of fabric color. Different colored fabrics have significant differences in their absorption and reflection characteristics of laser light, resulting in large fluctuations in the ranging results, making it difficult to stably and accurately reflect the actual thickness of the fabric. As a result, when the coding machine adjusts the coding and folding operations based on this error data, positioning errors frequently occur, resulting in uneven coding quality, hindered folding continuity, and increased product defective rates, which greatly affect production efficiency and benefits. Therefore, to address the above problems, a fabric thickness sensing device for a coding machine is proposed. Utility Model Content

[0005] In order to make up for the shortcomings of existing cloth coding machines, a cloth thickness sensing device for a coding machine is proposed.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a cloth thickness sensing device for a coding machine described in the present invention includes a fixed frame fixedly arranged on a carrier, a guide sleeve fixedly arranged on the fixed frame through a mounting component, a movable rod slidingly arranged in the guide sleeve to move following the change of cloth thickness, one end of the movable rod is fixedly equipped with a pressure block abutting against the cloth, a sensing component for receiving signals is fixedly equipped on the fixed frame, and a triggering component for triggering the sensing component is equipped on the movable rod.

[0007] Preferably, the sensing component is a photoelectric sensor, and the photoelectric sensor includes a sensing area for accommodating a trigger component.

[0008] Preferably, the trigger component is a sensing sheet, and the sensing sheet includes a bent portion bent to the sensing area.

[0009] Preferably, two fixing nuts for adjusting the initial position of the trigger component are rotatably assembled on the movable rod through threaded connection, and the trigger component is fixed between the two fixing nuts.

[0010] Preferably, the pressing block is made of aluminum.

[0011] Preferably, the inner diameter of the guide sleeve is two to five millimeters larger than the outer diameter of the movable rod.

[0012] Beneficial effects of the utility model:

[0013] The utility model provides a fabric thickness sensing device for a coding machine. Through the structural design of the utility model, a simple and intuitive mechanical structure is used to circumvent the disadvantages of complex and interference-susceptible optical ranging. With the help of the ingenious design of the photoelectric sensor and the sensor sheet, a high-sensitivity and high-stability detection feedback loop is built around the binary state switching of light blocking and normal reception. This design bypasses the interference of fabric color at the principle level, focuses on converting mechanical position changes into precise photoelectric signals, and realizes high-precision thickness monitoring. Based on this, the coding machine can adjust the coding mechanism and folding mechanism in real time according to the precise detection results, seamlessly adapt to the dynamic changes of fabric thickness, greatly reduce coding defects and folding errors caused by thickness deviation, significantly reduce the defective rate, and effectively improve product quality consistency. At the same time, stable and efficient operation reduces frequent equipment debugging and material loss, greatly improves production efficiency, meets the large-scale, refined and intelligent production demands of modern industrialization, and lays a solid foundation for the efficient operation of the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0015] Figure 1 This is a three-dimensional diagram of the overall structure of the utility model in conjunction with a coding machine;

[0016] Figure 2 It is a structural stereogram of the entire utility model;

[0017] Figure 3 yes Figure 2 A magnified view of the structure at point A;

[0018] Legend:

[0019] 1. Carrier; 2. Fixing frame; 3. Sensing component; 3a. Photoelectric sensor; 4. Guide sleeve; 5. Movable rod; 6. Pressure block; 7. Trigger component; 7a. Sensing plate; 8. Sensing area; 9. Bending part; 10. Fixing nut; 12. Driving device; 13. Coding mechanism; 14. Folding mechanism. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Specific examples are given below.

[0022] See also Figure 1-Figure 3 The utility model relates to a fabric thickness sensing device for a coding machine, comprising a fixed frame 2 fixedly mounted on a carrier 1, a guide sleeve 4 fixedly mounted on the fixed frame 2 via a mounting component, a movable rod 5 slidingly mounted in the guide sleeve 4 to move in accordance with the change in fabric thickness, a pressure block 6 fixedly mounted at one end of the movable rod 5 to abut against the fabric, a sensing component 3 for receiving a signal fixedly mounted on the fixed frame 2, and a trigger component 7 for triggering the sensing component 3 mounted on the movable rod 5;

[0023] The sensing component 3 is a photoelectric sensor 3a, which includes a sensing area 8 for accommodating a trigger component 7. The trigger component 7 is a sensing sheet 7a, which includes a bent portion 9 bent to the sensing area 8. When working, in the initial ready state of the coding machine, the cloth is placed on the coding machine in a predetermined stacking form, and the pressing block 6 is connected to the movable rod 5 and is suspended on the top layer of the uncoded cloth pile and in contact with it. The guide sleeve 4 provides precise guidance for the linear movement of the movable rod 5, strictly constraining it to move smoothly only along the axial direction, eliminating deviation and shaking in any direction, so as to ensure that the subsequent sensing action is accurate and correct. Before the coding and folding process is started, the initial stage is between the coding mechanism 13 and the folding mechanism 14 and the uncoded cloth below. The spacing is in a preset normal state. At this time, the bending portion 9 of the sensing piece 7a on the movable rod 5 is just located in the sensing area 8 of the photoelectric sensor 3a. Based on the working principle of the photoelectric sensor 3a, its internal light source emits light, and the bending portion 9 blocks the light, causing the photoelectric sensor 3a to be unable to normally receive the light emitted by itself. The signal state is transmitted to the controller via the internal circuit. The controller determines that the coding mechanism 13 and the folding mechanism 14 do not need to adjust their positions according to the preset logic, and therefore does not issue a driving instruction to the external driving device 12. As the coding process continues to advance, the folding mechanism 14 continues to operate to turn over and remove the coded fabrics one by one, and the stacking thickness of the uncoded fabrics gradually becomes thinner, and the support height on which the pressing block 6 relies is reduced accordingly. Under the guide, the movable rod 5 slides downward along the guide sleeve 4 and drives the sensing piece 7a to move downward accordingly, and its bent portion 9 gradually leaves the sensing area 8. The photoelectric sensor 3a is no longer blocked by the bent portion 9 and is able to normally receive the light emitted by itself. This light receiving state change is immediately captured by the internal circuit and converted into an electrical signal change, and transmitted to the controller. After receiving the signal, the controller quickly analyzes and judges according to the built-in precise algorithm and preset program, and determines that the current spacing between the coding mechanism 13 and the folding mechanism 14 and the uncoded fabric exceeds the normal range, that is, a control instruction is sent to the external driving device 12, and the driving device 12 accurately drives the coding mechanism 13 and the folding mechanism 14 to move downward in the vertical direction. During the movement, the movable rod 5 moves upward in the guide sleeve 4 continuously. Adjust the position until the coding mechanism 13 and the folding mechanism 14 are restored to the normal distance with the uncoded fabric, the bent portion 9 of the sensing piece 7a enters the sensing area 8 again and blocks the light, the light receiving state of the photoelectric sensor 3a changes again, the signal is transmitted to the controller, the trigger controller immediately stops sending the drive instruction, the external drive device 12 stops the action, so that the coding and folding mechanisms 14 are stably maintained in the adapted position, and this cycle repeats. As the thickness of the fabric continues to change, the device continuously detects accurately and adjusts feedback in real time, always ensuring that the distance between the coding mechanism 13 and the folding mechanism 14 and the uncoded fabric is in an ideal state. Through the structural design of the utility model, the complex and easily interfered optical ranging disadvantages are avoided with a simple and intuitive mechanical structure linkage.The ingenious design of the photoelectric sensor 3a and the sensor sheet 7a establishes a highly sensitive and stable detection feedback loop, focusing on the binary state switching between light blocking and normal reception. This design, at the fundamental level, bypasses fabric color interference and focuses on converting mechanical position changes into precise photoelectric signals, achieving high-precision thickness monitoring.

[0024] Based on this, the coding machine can adjust the coding and folding mechanism 14 in real time according to the precise detection results, seamlessly adapting to the dynamic changes in fabric thickness, greatly reducing coding defects and folding errors caused by thickness deviation, significantly reducing the defective rate, and effectively improving product quality consistency. At the same time, stable and efficient operation reduces frequent equipment debugging and material loss, greatly improving production efficiency, meeting the demands of modern industrial large-scale, refined and intelligent production, and laying a solid foundation for efficient operation of the industry.

[0025] Furthermore, the movable rod 5 is rotatably equipped with two fixing nuts 10 for adjusting the initial position of the trigger component 7 through a threaded connection, and the trigger component 7 is fixed between the two fixing nuts 10; during operation, in the actual operation of the coding machine, the situation of the fabric is complex and changeable. Not only are the individual thicknesses of fabrics in different batches different, but the overall stacking thickness of the fabric during each processing is also different. When faced with these diversities, the initial telescopic position of the movable rod 5 in the guide sleeve 4 will change accordingly. In the initial state, the movable rod 5 is in a balanced position under the combined effect of its own gravity and contact with the fabric. However, due to differences in fabric properties, this balanced position will fluctuate. Once the fabric is thicker or the stacking thickness is larger, the movable rod 5 drives the sensing piece 7a to move upward, which may cause the bent portion 9 of the sensing piece 7a to deviate excessively from the photoelectric sensor 3a. The sensing area 8 of the movable rod 5 is beyond the normal sensing range, affecting the accuracy and stability of subsequent thickness change detection; on the contrary, if the fabric is thin, the movable rod 5 moves down too much, which will also cause the bent portion 9 to move out of the appropriate position of the sensing area 8, causing the device to malfunction. During the equipment preparation stage or before switching to different fabric processing tasks, the operator uses a simple tool such as a wrench to rotate the fixing nut 10, which produces a relative displacement along the axial direction of the movable rod 5. Since the sensing piece 7a is firmly fixed between the two fixing nuts 10, when the nut spacing changes, the sensing piece 7a will move smoothly along the axial direction on the movable rod 5, ensuring that the bent portion 9 returns to a reasonable position where the sensing area 8 can effectively trigger the signal, thereby ensuring that the photoelectric sensor 3a can continuously, stably and accurately capture the position change information of the sensing piece 7a, laying a good foundation for the normal operation of the entire fabric thickness sensing device.

[0026] Furthermore, the pressing block 6 is made of aluminum. When working, the aluminum material has multiple physical properties that meet the operating requirements of the device. In terms of density, aluminum is relatively light. When the pressing block 6 contacts the cloth, the lighter mass makes the pressure applied to the cloth surface gentle and moderate under the same contact area, without damaging the appearance and intrinsic quality of the cloth, ensuring the subsequent coding position is accurate and the effect is excellent. Aluminum has moderate hardness, which is sufficient to maintain its own stable geometric shape during long-term frequent friction and contact with the cloth, and is not prone to deformation and wear. It ensures the flatness and stability of the contact with the cloth and continuously and stably transmits the cloth thickness change information to the movable rod 5.

[0027] Furthermore, the inner diameter of the guide sleeve 4 is two to five millimeters larger than the outer diameter of the movable rod 5; when working, the coding machine runs throughout the entire process, and the movable rod 5 needs to respond immediately to the subtle and frequent changes in the thickness of the fabric. The guide sleeve 4 reserves a moderate gap space of two to five millimeters compared to the outer diameter of the movable rod 5, which plays a key role based on the friction and limit principles of mechanical kinematics. From the perspective of friction, this gap effectively eliminates the "obstacle" of static friction that may be generated between the movable rod 5 and the inner wall of the guide sleeve 4. When the movable rod 5 moves with the change of fabric thickness, it ensures that it can slide smoothly and flexibly along the axial direction under the action of its own gravity or a small external force, and can quickly respond to displacement, driving the sensor piece 7a to adjust its position without any delay, laying a solid physical foundation for stable and reliable signal transmission.

[0028] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A cloth thickness sensing device for a coding machine, characterized by: The invention comprises a fixed frame (2) fixedly arranged on a carrier (1); a guide sleeve (4) fixedly arranged on the fixed frame (2) via a mounting component; a movable rod (5) slidingly arranged in the guide sleeve (4) and moving in accordance with the change in the thickness of the cloth; a pressure block (6) abutting against the cloth is fixedly mounted on one end of the movable rod (5); a sensing component (3) for receiving a signal is fixedly mounted on the fixed frame (2); and a triggering component (7) for triggering the sensing component (3) is mounted on the movable rod (5).

2. The cloth thickness sensing device for a coding machine according to claim 1, characterized in that: The sensing component (3) is a photoelectric sensor (3a), and the photoelectric sensor (3a) comprises a sensing area (8) for accommodating a trigger component (7).

3. A cloth thickness sensing device for a coding machine according to claim 1 or 2, characterized in that: The trigger component (7) is a sensing sheet (7a), and the sensing sheet (7a) includes a bent portion (9) bent to the sensing area (8).

4. The fabric thickness sensing device for a coding machine according to claim 1, characterized in that: Two fixing nuts (10) for adjusting the initial position of the trigger component (7) are rotatably mounted on the movable rod (5) through threaded connection, and the trigger component (7) is fixed between the two fixing nuts (10).

5. The cloth thickness sensing device for a coding machine according to claim 1, characterized in that: The pressing block (6) is made of aluminum.

6. The fabric thickness sensing device for a coding machine according to claim 1, characterized in that: The inner diameter of the guide sleeve (4) is two to five millimeters larger than the outer diameter of the movable rod (5).

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