Fabric position adjusting structure and method of cloth paving machine

Abstract

The invention relates to the technical field of cloth sewing, in particular to a cloth paving machine fabric position adjusting structure which comprises a detection hole, a sensor and a control module, the detection hole is formed in a lower cloth plate and penetrates through the two sides of the lower cloth plate, and the sensor is arranged on the rear side of the lower cloth plate; the sensor detects the distance between the fabric located on the front side of the cloth discharging plate and the cloth discharging plate through the detection hole, and the sensor and a cloth feeding mechanism of the cloth paving machine are both in communication connection with the control module. The invention further relates to a cloth paving machine fabric position adjusting method adopting the structure, and when cloth paving is finished, the control module controls the cloth feeding mechanism of the cloth paving machine to adjust the feeding length according to the distance information, detected by the sensor, between the fabric and the cloth discharging plate so as to adjust the distance between the fabric and the cloth discharging plate; and cutting the cloth until the distance between the fabric and the lower cloth plate is a set distance. The position of the fabric on the front side of the lower cloth plate can be automatically adjusted, and the cloth paving precision is improved.

Description

Technical Field

[0001] The invention relates to the technical field of cloth sewing, and in particular to a fabric position adjustment structure of a cloth spreading machine and a fabric position adjustment method of a cloth spreading machine. Background Art

[0002] During the spreading process of the spreading machine, the fabric passes through the front side of the lower fabric plate on the cutter and reaches the table. When the spreading is completed, a certain distance is required between the fabric and the lower fabric plate to facilitate the cutter to cut the fabric in front of the lower fabric plate. Since the fabric will carry static electricity after frequent friction with multiple feed rollers, it may be adsorbed on the lower fabric plate due to static electricity when passing through the front side of the lower fabric plate, resulting in a shorter length of fabric falling on the table per unit time, resulting in a decrease in spreading accuracy; at the same time, the operator will feed more fabric by adjusting other parameters, causing the fabric to accumulate in front of the lower fabric plate, resulting in a further decrease in spreading accuracy and flatness. Summary of the invention

[0003] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a fabric position adjustment structure and method for a spreading machine, which can automatically adjust the position of the fabric on the front side of the lower cloth plate to improve the spreading accuracy.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] The present invention provides a fabric position adjustment structure for a spreading machine, comprising a detection hole, a sensor and a control module, the two sides of a lower fabric plate of the spreading machine are respectively a front side for fabrics to pass through and a rear side opposite to the front side, the detection hole is opened on the lower fabric plate and passes through the two sides of the lower fabric plate, the sensor is arranged on the rear side of the lower fabric plate, the sensor detects the distance between the fabric located on the front side of the lower fabric plate and the lower fabric plate through the detection hole, and the sensor and the fabric feeding mechanism of the spreading machine are both communicatively connected with the control module.

[0006] Preferably, it also includes a fixed main bracket and a mounting plate connected to the main bracket, the lower cloth plate is mounted on the main bracket, and the sensor is mounted on the mounting plate.

[0007] Preferably, the main bracket and the mounting plate are both arranged on the rear side of the lower fabric plate.

[0008] Preferably, it also includes a blowing hole and a fan. The blowing hole is opened on the lower fabric plate and passes through both sides of the lower fabric plate. The fan is arranged on the rear side of the lower fabric plate. The fan is used to supply air to the fabric located on the front side of the lower fabric plate through the blowing hole to blow the fabric away from the lower fabric plate. The fan is communicatively connected with the control module.

[0009] Preferably, the fan is mounted on the rear side of the lower fabric plate.

[0010] Preferably, there are multiple air blowing holes and fans, and the multiple fans are evenly arranged on the lower fabric plate, and one fan corresponds to one or more air blowing holes.

[0011] The present invention also provides a method for adjusting the fabric position of a spreading machine, which adopts the fabric position adjustment structure of the spreading machine as described above. At the end of spreading the fabric, the control module controls the feeding mechanism of the spreading machine to adjust the feeding length according to the distance information between the fabric and the lower fabric plate detected by the sensor to adjust the distance between the fabric and the lower fabric plate, and then cuts the fabric.

[0012] Preferably, for fabrics that generate static electricity, during the spreading process, the fan runs, and the control module controls the fan speed according to the distance information between the fabric and the lower fabric plate detected by the sensor to adjust the distance between the fabric and the lower fabric plate so that the distance between the fabric and the lower fabric plate is the set distance.

[0013] Compared with the prior art, the present invention has significant improvements:

[0014] The present invention automatically adjusts the position of the fabric by detecting and identifying the distance between the fabric and the lower fabric plate through a sensor. When each layer of fabric is finished being spread, the control module can control the feeding mechanism of the spreading machine to adjust the feeding length according to the distance information between the fabric and the lower fabric plate detected by the sensor, so as to adjust the distance between the fabric and the lower fabric plate, and then cut the fabric until the distance between the fabric and the lower fabric plate reaches the set distance, thereby ensuring that the position of the fabric on the front side of the lower fabric plate is the same each time the fabric is cut, thereby improving the spreading accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a rear view schematic diagram of the fabric position adjustment structure of the spreading machine according to an embodiment of the present invention.

[0016] Figure 2 yes Figure 1 Schematic cross-sectional view along AA.

[0017] Figure 3 It is a partial schematic diagram of the rear side of the fabric position adjustment structure of the spreading machine according to an embodiment of the present invention.

[0018] Figure 4 It is a partial schematic diagram of the front side of the fabric position adjustment structure of the spreading machine according to an embodiment of the present invention.

[0019] The reference numerals are described as follows:

[0020] 100: lower fabric plate; 100a: front side; 100b: back side; 200: fabric; 1: detection hole; 2: sensor; 3: main bracket; 4: mounting plate; 5: air blowing hole; 6: fan. DETAILED DESCRIPTION

[0021] The specific embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings. These embodiments are only used to illustrate the present invention, but not to limit the present invention.

[0022] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] Furthermore, in the description of the present invention, unless otherwise specified, “plurality” means two or more.

[0025] like Figures 1 to 4 The figure shows an embodiment of the fabric position adjustment structure of the spreading machine provided by the present invention.

[0026] See also Figure 1 and Figure 2 The two sides of the lower cloth plate 100 of the spreading machine are respectively the front side 100a for the fabric 200 to pass through and the rear side 100b opposite to the front side 100a, wherein the front side 100a is the front side of the lower cloth plate 100, and the rear side 100b is the back side of the lower cloth plate 100. When the spreading is completed, a set distance is required between the fabric 200 and the lower cloth plate 100, so that the cutter can cut the fabric 200 on the front side 100a of the lower cloth plate 100. The fabric position adjustment structure of the spreading machine of this embodiment is used to realize the automatic adjustment of the distance between the fabric 200 and the lower cloth plate 100, that is, to realize the automatic adjustment of the position of the fabric 200 on the front side 100a of the lower cloth plate 100, so as to improve the spreading accuracy.

[0027] See also Figure 2 and Figure 3The fabric position adjustment structure of the cloth spreading machine of this embodiment includes a detection hole 1, a sensor 2 and a control module. The detection hole 1 is opened on the lower cloth plate 100, and the detection hole 1 runs through both sides (the front side 100a and the rear side 100b) of the lower cloth plate 100. The sensor 2 is arranged on the rear side 100b of the lower cloth plate 100, and the sensor 2 detects the distance between the fabric 200 located on the front side 100a of the lower cloth plate 100 and the lower cloth plate 100 through the detection hole 1. The sensor 2 is arranged behind the detection hole 1 on the lower cloth plate 100, and can sense the back side of the fabric 200 located on the front side 100a of the lower cloth plate 100 through the detection hole 1, thereby detecting the distance between the fabric 200 and the lower cloth plate 100. The sensor 2 and the cloth feeding mechanism of the cloth spreading machine are both connected to the control module for communication. The sensor 2 transmits the detected distance information between the fabric 200 and the lower cloth plate 100 to the control module, and the control module receives the distance information. At the end of spreading, the control module determines whether the distance between the fabric 200 and the lower fabric plate 100 is the set distance based on the received distance information. If not, the control module controls the feeding mechanism of the spreading machine to adjust the feeding length, thereby adjusting the distance between the fabric 200 and the lower fabric plate 100 so that the distance between the fabric 200 and the lower fabric plate 100 reaches the set distance. In this process, the feeding length of the feeding mechanism is adjusted to fine-tune. When the detected distance between the fabric 200 and the lower fabric plate 100 is greater than the set distance, the feeding length of the feeding mechanism can be controlled to increase slightly, so that the fabric 200 approaches the lower fabric plate 100 and reduces the distance between the fabric 200 and the lower fabric plate 100 until the set distance is reached; when the detected distance between the fabric 200 and the lower fabric plate 100 is less than the set distance, the feeding length of the feeding mechanism can be controlled to decrease slightly, so that the fabric 200 leaves the lower fabric plate 100 and increases the distance between the fabric 200 and the lower fabric plate 100 until the set distance is reached. In this way, the position of the fabric 200 is automatically adjusted through the detection and recognition of the sensor 2. When each layer of fabric 200 is finished being spread, the control module can control the feeding mechanism of the spreading machine to adjust the feeding length according to the distance information between the fabric 200 and the lower fabric plate 100 detected by the sensor 2, so as to adjust the distance between the fabric 200 and the lower fabric plate 100, and then cut the fabric until the distance between the fabric 200 and the lower fabric plate 100 reaches the set distance, thereby ensuring that the position of the fabric 200 on the front side 100a of the lower fabric plate 100 is the same each time the fabric is cut, thereby improving the spreading accuracy.

[0028] In this embodiment, the form of the control module is not limited, and a conventional controller in the prior art, such as a PLC controller or a single chip microcomputer, can be used. In addition, the implementation method of controlling the feeding mechanism of the cloth spreading machine by the control module to adjust the feeding length is a prior art and will not be described in detail herein.

[0029] Preferably, the fabric position adjustment structure of the spreading machine of this embodiment also includes a fixed main bracket 3 and a mounting plate 4 connected to the main bracket 3, the main bracket 3 can be fixed to the spreading machine, and the mounting plate 4 is fixed to the main bracket 3. The lower fabric plate 100 is mounted on the main bracket 3, and the lower fabric plate 100 is fixed to the main bracket 3. The sensor 2 is mounted on the mounting plate 4, and the sensor 2 is fixed to the mounting plate 4. The assembly of the lower fabric plate 100, the main bracket 3, the mounting plate 4 and the sensor 2 enables the sensor 2 to be located behind the detection hole 1 on the lower fabric plate 100, ensuring that the sensor 2 can sense the back side of the fabric 200 located on the front side 100a of the lower fabric plate 100 through the detection hole 1. Preferably, the main bracket 3 and the mounting plate 4 are both arranged on the rear side 100b of the lower fabric plate 100.

[0030] For further information, see Figure 3 and Figure 4The fabric position adjustment structure of the cloth spreading machine of this embodiment also includes a blowing hole 5 and a fan 6. The blowing hole 5 is provided on the lower cloth plate 100, and the blowing hole 5 passes through both sides (the front side 100a and the rear side 100b) of the lower cloth plate 100. The fan 6 is provided on the rear side 100b of the lower cloth plate 100, and the fan 6 is used to send air to the fabric 200 located on the front side 100a of the lower cloth plate 100 through the blowing hole 5 to blow the fabric 200 away from the lower cloth plate 100. The fan 6 is provided behind the blowing hole 5 on the lower cloth plate 100, and can send air to the back side of the fabric 200 located on the front side 100a of the lower cloth plate 100 through the blowing hole 5, so as to play the role of blowing the fabric 200 away from the lower cloth plate 100. The fan 6 is connected to the control module in communication, and the rotation speed of the fan 6 is controlled by the control module, so that the distance that the fan 6 blows the fabric 200 away from the lower cloth plate 100 can be controlled. For the fabric 200 which is prone to generate static electricity due to frequent friction between multiple feed rollers of the feed mechanism during the spreading process, during the spreading process, when the fabric 200 passes through the lower fabric plate 100, the control module can control the fan 6 to start running, and the control module determines whether the distance between the fabric 200 and the lower fabric plate 100 is a set distance based on the distance information between the fabric 200 and the lower fabric plate 100 detected by the sensor 2. If not, the control module controls the rotation speed of the fan 6 to adjust the distance between the fabric 200 and the lower fabric plate 100 so that the distance between the fabric 200 and the lower fabric plate 100 is the set distance. Specifically, when the static electricity generated by the fabric 200 increases, causing the fabric 200 to be adsorbed on the lower fabric plate 100, and the distance between the fabric 200 and the lower fabric plate 100 detected by the sensor 2 is less than the set distance, the control module controls the speed of the fan 6 to increase, thereby increasing the distance of blowing the fabric 200 away from the lower fabric plate 100, until the distance between the fabric 200 and the lower fabric plate 100 reaches the set distance, thereby eliminating static electricity; when the wind force is too strong, causing the distance between the fabric 200 and the lower fabric plate 100 detected by the sensor 2 to be greater than the set distance, the control module controls the speed of the fan 6 to decrease, thereby reducing the distance of blowing the fabric 200 away from the lower fabric plate 100, until the distance between the fabric 200 and the lower fabric plate 100 reaches the set distance, thereby avoiding affecting the spreading of the fabric. When a layer of fabric 200 is finished spreading and needs to be cut, the control module controls the fan 6 to stop running. Thus, the fan 6 can achieve the effect of removing static electricity, eliminate static electricity during the spreading process, and control the distance between the fabric 200 and the lower fabric plate 100 to a set distance without affecting the spreading. The sensor 2 detects and recognizes and automatically adjusts the speed of the fan 6, so that when facing different types of fabrics 200, it can be avoided that the fan 6 has too much wind force to affect the spreading or too little wind force to eliminate static electricity in time due to different levels of static electricity in the fabric 200.

[0031] In this embodiment, preferably, the fan 6 is installed on the side of the rear side 100b of the lower fabric plate 100, and the fan 6 is fixed to the lower fabric plate 100. Preferably, the fan 6 is installed on the side of the rear side 100b of the lower fabric plate 100 at a position corresponding to the blowing hole 5, and the fan 6 is connected and fixed to the side of the rear side 100b of the lower fabric plate 100 to cover the corresponding blowing hole 5.

[0032] In this embodiment, preferably, there are multiple blowing holes 5 and fans 6, and multiple fans 6 are evenly arranged on the lower fabric plate 100, and one fan 6 corresponds to at least one or more blowing holes 5. Multiple evenly arranged fans 6 supply air to the fabric 200 located at the front side 100a of the lower fabric plate 100 through their corresponding blowing holes 5, which can ensure that the wind force on the fabric 200 is uniform, thereby ensuring that the fabric 200 is evenly spaced from the lower fabric plate 100. When one fan 6 corresponds to multiple blowing holes 5, the aperture of the blowing hole 5 can be set to a smaller aperture, so that the air volume blown to the back of the fabric 200 is more uniform and soft.

[0033] Based on the fabric position adjustment structure of the spreading machine of the present invention, an embodiment of the present invention also provides a fabric position adjustment method for the spreading machine. The fabric position adjustment method for the spreading machine of the present embodiment adopts the fabric position adjustment structure of the spreading machine of the present embodiment, wherein the sensor 2 detects the distance between the fabric 200 located on the front side 100a of the lower fabric plate 100 and the lower fabric plate 100 through the detection hole 1, and transmits the detected distance information between the fabric 200 and the lower fabric plate 100 to the control module, and the control module receives the distance information. At the end of spreading, the control module controls the feeding mechanism of the spreading machine to adjust the feeding length according to the distance information between the fabric 200 and the lower fabric plate 100 detected by the sensor 2 to adjust the distance between the fabric 200 and the lower fabric plate 100, until the distance between the fabric 200 and the lower fabric plate 100 is the set distance, and then the cloth is cut. Specifically, the control module determines whether the distance between the fabric 200 and the lower fabric plate 100 is the set distance based on the received distance information. If not, the control module controls the feeding mechanism of the cloth laying machine to adjust the feeding length, thereby adjusting the distance between the fabric 200 and the lower fabric plate 100 so that the distance between the fabric 200 and the lower fabric plate 100 reaches the set distance. In this process, the feeding length of the feeding mechanism is adjusted to fine-tune. When the detected distance between the fabric 200 and the lower fabric plate 100 is greater than the set distance, the feeding length of the feeding mechanism can be controlled to increase slightly, so that the fabric 200 approaches the lower fabric plate 100 and reduces the distance between the fabric 200 and the lower fabric plate 100 until the set distance is reached; when the detected distance between the fabric 200 and the lower fabric plate 100 is less than the set distance, the feeding length of the feeding mechanism can be controlled to decrease slightly, so that the fabric 200 leaves the lower fabric plate 100 and increases the distance between the fabric 200 and the lower fabric plate 100 until the set distance is reached.

[0034] In the method for adjusting the fabric position of the spreading machine of the present embodiment, when each layer of fabric 200 is finished being spread, the control module controls the feeding mechanism of the spreading machine to adjust the feeding length to adjust the distance between the fabric 200 and the lower fabric plate 100 according to the distance information between the fabric 200 and the lower fabric plate 100 detected by the sensor 2, and the cloth is cut after the distance between the fabric 200 and the lower fabric plate 100 reaches the set distance, thereby ensuring that the position of the fabric 200 on the front side 100a of the lower fabric plate 100 is the same each time the cloth is cut, thereby improving the spreading accuracy.

[0035] Furthermore, in the fabric position adjustment method of the fabric spreading machine of the present embodiment, for the fabric 200 which is prone to generate static electricity due to frequent friction between the multiple feed rollers of the feed mechanism during the spreading process, when the fabric 200 passes through the lower fabric plate 100 during the spreading process, the control module controls the fan 6 to operate, and the control module controls the speed of the fan 6 according to the distance information between the fabric 200 and the lower fabric plate 100 detected by the sensor 2 to adjust the distance between the fabric 200 and the lower fabric plate 100, so that the distance between the fabric 200 and the lower fabric plate 100 is the set distance. Specifically, the control module determines whether the distance between the fabric 200 and the lower fabric plate 100 is the set distance according to the distance information between the fabric 200 and the lower fabric plate 100 detected by the sensor 2. If not, the control module controls the speed of the fan 6 to adjust the distance between the fabric 200 and the lower fabric plate 100, so that the distance between the fabric 200 and the lower fabric plate 100 is the set distance. When the static electricity generated by the fabric 200 increases, causing the fabric 200 to be adsorbed on the lower cloth plate 100, and the distance between the fabric 200 and the lower cloth plate 100 detected by the sensor 2 is less than the set distance, the control module controls the speed of the fan 6 to increase, thereby increasing the distance of blowing the fabric 200 away from the lower cloth plate 100, until the distance between the fabric 200 and the lower cloth plate 100 reaches the set distance, thereby eliminating static electricity; when the wind force is too strong, causing the distance between the fabric 200 and the lower cloth plate 100 detected by the sensor 2 to be greater than the set distance, the control module controls the speed of the fan 6 to decrease, thereby reducing the distance of blowing the fabric 200 away from the lower cloth plate 100, until the distance between the fabric 200 and the lower cloth plate 100 reaches the set distance, thereby avoiding affecting the spreading of the fabric. When the spreading of a layer of fabric 200 is completed and the fabric needs to be cut, the control module controls the fan 6 to stop running. Thus, the effect of removing static electricity is achieved by blowing air through the fan 6, eliminating static electricity during the spreading process, and controlling the distance between the fabric 200 and the lower cloth plate 100 to the set distance, without affecting the spreading of the fabric. By detecting and identifying and automatically adjusting the rotation speed of the fan 6 through the sensor 2, it is possible to avoid the situation where the fan 6 has too strong a wind force to affect the spreading of the fabrics or too weak a wind force to eliminate the static electricity in time due to the different levels of static electricity in the fabrics 200 when facing different types of fabrics 200.

[0036] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.

Claims

1. A fabric position adjustment structure for a spreading machine, characterized in that: The invention comprises a detection hole (1), a sensor (2) and a control module. The two sides of a lower cloth plate (100) of a cloth spreading machine are respectively a front side (100a) for a fabric (200) to pass through and a rear side (100b) opposite to the front side (100a). The detection hole (1) is opened on the lower cloth plate (100) and passes through the two sides of the lower cloth plate (100). The sensor (2) is arranged on the rear side (100b) of the lower cloth plate (100). The sensor (2) detects the distance between the fabric (200) located on the front side (100a) of the lower cloth plate (100) and the lower cloth plate (100) through the detection hole (1). The sensor (2) and the cloth feeding mechanism of the cloth spreading machine are both communicatively connected to the control module.

2. The fabric position adjustment structure of the spreading machine according to claim 1, characterized in that: It also comprises a fixed main bracket (3) and a mounting plate (4) connected to the main bracket (3), the lower cloth plate (100) being mounted on the main bracket (3), and the sensor (2) being mounted on the mounting plate (4).

3. The fabric position adjustment structure of the spreading machine according to claim 2 is characterized in that: The main bracket (3) and the mounting plate (4) are both arranged on the rear side (100b) of the lower fabric plate (100).

4. The fabric position adjustment structure of a spreading machine according to any one of claims 1 to 3, characterized in that: It also includes a blowing hole (5) and a fan (6), wherein the blowing hole (5) is opened on the lower fabric plate (100) and passes through both sides of the lower fabric plate (100), and the fan (6) is arranged on the rear side (100b) of the lower fabric plate (100), and the fan (6) is used to supply air to the fabric (200) located on the front side (100a) of the lower fabric plate (100) through the blowing hole (5) to blow the fabric (200) away from the lower fabric plate (100), and the fan (6) is communicatively connected to the control module.

5. The fabric position adjustment structure of the spreading machine according to claim 4, characterized in that: The fan (6) is installed on the rear side (100b) of the lower fabric plate (100).

6. The fabric position adjustment structure of the spreading machine according to claim 4, characterized in that: The blowing holes (5) and the fans (6) are both provided in plurality, and the plurality of fans (6) are evenly arranged on the lower cloth plate (100), and one fan (6) corresponds to one or more blowing holes (5).

7. A method for adjusting the fabric position of a spreading machine, characterized in that: The fabric position adjustment structure of the spreading machine as claimed in any one of claims 1 to 6 is adopted. When spreading is finished, the control module controls the feeding mechanism of the spreading machine to adjust the feeding length according to the distance information between the fabric (200) and the lower fabric plate (100) detected by the sensor (2) to adjust the distance between the fabric (200) and the lower fabric plate (100), and the fabric is cut after the distance between the fabric (200) and the lower fabric plate (100) reaches the set distance.

8. The method for adjusting the fabric position of a spreading machine according to claim 7, characterized in that: For a fabric (200) that generates static electricity, during the spreading process, the fan (6) is operated, and the control module controls the rotation speed of the fan (6) according to the distance information between the fabric (200) and the lower fabric plate (100) detected by the sensor (2) to adjust the distance between the fabric (200) and the lower fabric plate (100), so that the distance between the fabric (200) and the lower fabric plate (100) is a set distance.

Images