Kangaroo pocket sewing control method

Abstract

According to the kangaroo pocket sewing control method, a pocket patching machine and a machine head arranged on the pocket patching machine are included, and an identification device is installed on the machine head; the recognition device comprises a sensor arranged around a machine needle of the machine head, and a horizontal distance L is formed between a detection point of the sensor and the machine needle of the machine head; in the using process of the patch pocket machine, the method comprises the following steps that a pattern is newly built, the position of a sensor is adjusted, and a material conveying device moves along a preset track; compared with the prior art, the sensor surrounding the machine head is arranged, and the moving position of the material conveying device is started and stopped under the action of the sensor, so that the specific sizes of actually differentiated pocket openings can be identified through the sensor, and the pocket openings rolled in the previous procedure are accurately sewn; and defective products are reduced.

Description

Technical Field

[0001] The invention relates to the technical field of kangaroo bag sewing, and in particular to a kangaroo bag sewing control method. Background Art

[0002] A kangaroo pocket is a type of pocket sewn into a garment. This pocket is usually much larger than the pockets on most pants, coats, or tops. This type of pocket is large enough to fit both hands in. This type of pocket is also known as a hood pocket or hoodie pocket. It is located at the front, bottom, or underside of a shirt or garment, much like a kangaroo's marsupial or pouch. In terms of style, this type of pocket is often associated with casual clothing, such as sweatshirts or simple cotton jumpsuits.

[0003] At present, the automatic sewing of kangaroo bags is to automatically fold the kangaroo bag pocket on the table through a folding device, automatically move the material, and then automatically sew it around the machine head according to a predetermined program.

[0004] However, in actual use, the kangaroo bag pockets are not made to standard. Because the fabric is elastic, the pockets rebound inconsistently after the previous hemming process, resulting in inconsistency in each sewing process, such as Figure 4 As shown, the sizes of A, B, and C are not equal, which leads to differences in the sizes of pockets A, B, and C after being folded by the automatic folding device, and this difference is not regular.

[0005] Since the kangaroo bag is only sewn in three sections, A, B, and C, and is divided into single-line and double-line, during the automatic sewing process of the kangaroo bag, the sewing program preset in the touch screen remains unchanged. If the sewing length of the program section is greater than A, B, or C, the stitches will be sewn out at A, B, or C; if the sewing length of the program section is less than A, B, or C, the stitches cannot sew A, B, or C completely; both conditions will produce defective products, thus affecting the appearance and practicality of the kangaroo bag. Summary of the invention

[0006] The present invention aims to overcome the defects in the prior art and provide a kangaroo bag sewing control method with high sewing efficiency and avoiding bag opening differences.

[0007] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions: A kangaroo bag sewing control method includes a pocket sticking machine and a machine head arranged on the pocket sticking machine, wherein an identification device is installed on the machine head; the identification device includes a sensor arranged around a machine needle of the machine head, and a horizontal spacing L is formed between a sensor detection point and the machine needle of the machine head; the pocket sticking machine includes the following steps during use: Step A: Create a new pattern, form the required sewing lines A, B and C according to the three pattern segments, and scatter the lines A, B and C into sewing points according to the set needle distance, and transmit them to the control unit of the pocket sticking machine; Step B: Move the material transport device to the starting position of the segment line to be sewn under the action of the XY axis, and locate it at the machine head. According to the angle formed by the straight line formed by the current coordinates and the coordinates of the last few points of the segment and the horizontal direction, control the sensor to rotate around the needle at a corresponding angle, so that the sensor rotates to the front of the required moving direction of the material transport device; Step C: Move the material transport device along a predetermined trajectory. When the sensor detects the pocket cloth, it outputs a signal to the control unit. The control unit controls the material transport device to jump a distance L in the forward direction, and then controls the machine head to start sewing. Step D: The material transport device moves along a predetermined trajectory. When the sensor detects that there is no pocket cloth, it stops outputting signals to the control unit. After receiving the feedback, the control unit controls the material transport device to continue sewing a distance L in the forward direction, and then controls the machine head to stop sewing; Step E: Repeat steps BD to complete the sewing of line A, line B and line C in sequence to complete the sewing of the outer circle.

[0008] As a preferred solution of the present invention, a smoothing air blowing nozzle which rotates synchronously with the sensor is installed on the sensor.

[0009] As a preferred solution of the present invention, the A-segment line, the B-segment line and the C-segment line are smoothed and the blowing nozzle is in a blowing state during the sewing process.

[0010] As a preferred solution of the present invention, the machine head is provided with two sections of X-axis feeding, and the two sections of X-axis have a locking function at the same time. The locking function is closed after the two sections of X-axis take the material, and the locking function is opened after the material is taken and returned.

[0011] As a preferred solution of the present invention, after completing the segment line, the material transport device in step D performs empty transport to the beginning of the next segment under the action of the XY axis.

[0012] As a preferred embodiment of the present invention, after the material transport device in step D is transported empty to the beginning of the next section, the control unit controls the sensor rotation difference angle based on the angle formed by the current coordinates and the straight line formed by the coordinates of the next few points of the line segment and the horizontal direction, so that the sensor rotates to the front of the required moving direction of the material transport device. The difference angle is the corresponding angle of rotation of the sensor around the needle mentioned above. As a preferred embodiment of the present invention, the sensor rotation difference angle is the angle formed by subtracting the horizontal angle after the previous rotation from the current horizontal angle.

[0013] As a preferred solution of the present invention, the sensor rotation difference angle rotates in the same direction according to the positive difference between the current horizontal angle and the previous horizontal angle, and rotates in the opposite direction according to the negative difference.

[0014] As a preferred solution of the present invention, after the outer ring is sewn in step E, the material transport device is sent back to the origin empty, and then connected to the material receiving program to receive the material.

[0015] As a preferred solution of the present invention, after the outer ring is sewn in step E, there is a plate retraction command, and the control unit controls the outer pressure plate to remain stationary, and the inner pressure plate lifts the plate retraction and then descends to complete the plate retraction.

[0016] As a preferred solution of the present invention, it also includes step F: repeating step E to complete the sewing of the inner circle.

[0017] Compared with the prior art, the beneficial effect of the present invention is that by arranging sensors around the machine head, the moving position of the material conveying device is started and stopped under the action of the sensors, so that the specific size of the actually differentiated bag openings can be identified through the sensors, thereby achieving accurate sewing of the bag openings rolled in the previous process and reducing the production of defective products. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a flow chart of the present invention; Figure 2 It is a schematic diagram of the structure of the present invention; Figure 3 This is the wiring diagram of the machine head; Figure 4 This is a diagram of sewing a kangaroo bag; Reference numerals: machine head 1 , identification device 2 . DETAILED DESCRIPTION

[0019] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0020] like Figure 1-Figure 4 As shown, a kangaroo bag sewing control method includes a pocket sticking machine and a head 1 arranged on the pocket sticking machine, and an identification device 2 is installed on the head 1; the identification device 2 includes a sensor arranged around the needle of the head 1, and a horizontal spacing L is formed between the sensor detection point and the needle of the head 1.

[0021] The sensor is provided with a smoothing air blowing nozzle which rotates synchronously with the sensor. The blowing position of the smoothing air blowing nozzle is the same as the detection point position of the sensor, and the smoothing air blowing nozzle is provided with a valve for controlling the blowing air flow rate.

[0022] Two sections of X-axis feeding are arranged on the machine head 1, which extend the motion range of the X-axis. The two sections of the X-axis also have a locking function. The locking function is closed after the two sections of the X-axis take the material, and the locking function is opened after the material is taken back, thereby avoiding unstable sewing caused by the excessively long X-axis cantilever.

[0023] The sensor identifies the position of the material transport device in real time and outputs a feedback signal, which is then transmitted as input to the control unit of the bag sticking machine.

[0024] The pocket sticking machine of the present application comprises the following steps during use: Step A: Create a new pattern. When creating a new pattern, the length of the pattern needs to be greater than the X distance at the beginning and end of the three segments A, B and C.

[0025] The required sewing lines A, B and C are formed according to the three pattern segments, and the lines A, B and C are scattered into sewing points according to the set needle distance. The spacing and number of sewing points are designed according to actual conditions and transmitted to the control unit of the pocket sticking machine.

[0026] Step B: Move the material transport device to the starting position of the segment line to be sewn under the action of the XY axis. According to the angle formed by the straight line formed by the current coordinates and the coordinates of the last few points of the segment and the horizontal direction, control the sensor to rotate around the needle at a corresponding angle, so that the sensor rotates to the front of the required moving direction of the material transport device, and at the same time, flatten the blowing nozzle and start blowing.

[0027] When it is necessary to sew the A segment line, the material transport device moves to the end of the A segment line under the action of the XY axis, and the angle formed by the straight line formed by the current coordinates and the coordinates of the points after the A segment line and the horizontal direction (such as Figure 4 The sensor is controlled to rotate at a corresponding angle, and the straight line where the sensor and the machine head 1 are located is the same as the straight line where the line segment A to be sewn is located.

[0028] Step C: Move the material transport device along a predetermined trajectory. When the sensor detects the pocket cloth, it outputs a signal to the control unit. The control unit controls the material transport device to jump a distance L in the forward direction, and then controls the machine head 1 to start sewing. During the sewing process, the smoothing and blowing nozzle is in a blowing state.

[0029] When the sensor detects the pocket cloth, since there is still a horizontal distance L between the needle of the machine head 1 and the pocket cloth, the control unit controls the material transport device to jump over the distance L in the forward direction, ensuring that the machine needle starts sewing when the sensor first detects the pocket cloth.

[0030] Step D: The material transport device moves along a predetermined trajectory. When the sensor detects that there is no pocket cloth, it stops outputting signals to the control unit. After receiving the feedback, the control unit controls the material transport device to continue sewing a distance L in the forward direction, and then controls the machine head 1 to stop sewing.

[0031] When the sensor detects that there is no pocket cloth, since there is still a horizontal distance L between the needle of the machine head 1 and the pocket cloth, the control unit controls the material transport device to continue sewing the distance L in the forward direction after receiving the feedback, ensuring that the machine needle stops sewing after the sensor finally detects the pocket cloth.

[0032] After completing the segment line, the transport device performs air delivery to the starting point of the next segment under the action of the XY axis. After the transport device is air delivered to the starting point of the next segment, the control unit controls the sensor rotation difference angle based on the angle formed by the straight line formed by the current coordinates and the coordinates of the next few points of the line segment and the horizontal direction, so that the sensor rotates to the front of the required moving direction of the transport device.

[0033] The sensor rotation difference angle is the angle formed by subtracting the horizontal angle after the previous rotation from the current horizontal angle. The sensor rotation difference angle rotates in the same direction according to the positive difference between the current horizontal angle and the previous horizontal angle, and rotates in the opposite direction according to the negative difference.

[0034] Step E: When the A segment is completed and the B segment needs to be sewn, the material transport device moves to the end of the B segment under the action of the XY axis. The angle formed by the straight line formed by the current coordinate and the coordinates of the last few points of the B segment and the horizontal direction (such as Figure 4 At this time, segment B is set horizontally, and segment B forms an angle of 0° with the horizontal direction, and the sensor is controlled to rotate the corresponding angle, and the sensor is controlled to rotate (0-α)°. At this time, the straight line where the sensor and the machine head 1 are located is the same as the straight line where segment B to be sewn is located.

[0035] The material transport device moves along a predetermined trajectory. When the sensor detects the pocket cloth, it outputs a signal to the control unit. The control unit controls the material transport device to jump a distance L in the forward direction, and then controls the machine head 1 to start sewing. During the sewing process, the smoothing and blowing nozzle is in a blowing state.

[0036] When the sensor detects the pocket cloth, since there is still a horizontal distance L between the needle of the machine head 1 and the pocket cloth, the control unit controls the material transport device to jump over the distance L in the forward direction, ensuring that the machine needle starts sewing when the sensor first detects the pocket cloth.

[0037] The material transport device moves along a predetermined trajectory. When the sensor detects that there is no pocket cloth, it stops outputting signals to the control unit. After receiving the feedback, the control unit controls the material transport device to continue sewing a distance L in the forward direction, and then controls the machine head 1 to stop sewing.

[0038] When the sensor detects that there is no pocket cloth, since there is still a horizontal distance L between the needle of the machine head 1 and the pocket cloth, the control unit controls the material transport device to continue sewing the distance L in the forward direction after receiving the feedback, ensuring that the machine needle stops sewing after the sensor finally detects the pocket cloth.

[0039] When the B segment line is completed and the C segment line needs to be sewn, the material transport device moves to the end of the C segment line under the action of the XY axis. The angle formed by the straight line formed by the current coordinates and the coordinates of the last few points of the C segment line and the horizontal direction (such as Figure 4The sensor is controlled to rotate at a corresponding angle, and the sensor is controlled to rotate (β-0)°. At this time, the straight line where the sensor and the machine head 1 are located is the same as the straight line where the C segment to be sewn is located.

[0040] The material transport device moves along a predetermined trajectory. When the sensor detects the pocket cloth, it outputs a signal to the control unit. The control unit controls the material transport device to jump a distance L in the forward direction, and then controls the machine head 1 to start sewing. During the sewing process, the smoothing and blowing nozzle is in a blowing state.

[0041] When the sensor detects the pocket cloth, since there is still a horizontal distance L between the needle of the machine head 1 and the pocket cloth, the control unit controls the material transport device to jump over the distance L in the forward direction, ensuring that the machine needle starts sewing when the sensor first detects the pocket cloth.

[0042] The material transport device moves along a predetermined trajectory. When the sensor detects that there is no pocket cloth, it stops outputting signals to the control unit. After receiving the feedback, the control unit controls the material transport device to continue sewing a distance L in the forward direction, and then controls the machine head 1 to stop sewing.

[0043] When the sensor detects that there is no pocket cloth, since there is still a horizontal distance L between the needle of the machine head 1 and the pocket cloth, the control unit controls the material transport device to continue sewing the distance L in the forward direction after receiving the feedback, ensuring that the machine needle stops sewing after the sensor finally detects the pocket cloth.

[0044] Complete the sewing of section A, section B and section C in sequence to complete the sewing of the outer circle.

[0045] After the outer ring is sewn, there is no subsequent program segment, the material transport device is sent back to the origin empty, the air blowing nozzle is flattened and closed, and then the material receiving program is connected to receive the material.

[0046] If there is a plate retraction command after the outer circle sewing is completed, the control unit controls the outer pressure plate to remain stationary, and the inner pressure plate lifts the plate retraction and then descends to complete the plate retraction.

[0047] The material transport device is transported to the starting point of the inner circle along a predetermined trajectory under the action of the XY axis.

[0048] Step F: Repeat step E to complete the inner circle sewing.

[0049] Of course, the machine head 1 can also be the machine head of a double-needle machine, which can complete the sewing of the inner and outer circles at the same time, so step F is not required.

[0050] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention; therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0051] Although the present invention uses the following terms more frequently: head 1, identification device 2, etc., it does not exclude the possibility of using other terms. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A kangaroo bag sewing control method, comprising a pocket sticking machine and a machine head (1) arranged on the pocket sticking machine, characterized in that: The machine head (1) is provided with an identification device (2); the identification device (2) comprises a sensor arranged around a machine needle of the machine head (1), and a horizontal distance L is formed between a sensor detection point and the machine needle of the machine head (1); the pocket sticking machine comprises the following steps during use: Step A: Create a new pattern, form the required sewing lines A, B and C according to the three pattern segments, and scatter the lines A, B and C into sewing points according to the set needle distance, and transmit them to the control unit of the pocket sticking machine; Step B: Move the material transport device under the action of the XY axis to the starting position of the segment line to be sewn, which is located at the machine head (1); according to the angle formed by the straight line formed by the current coordinates and the coordinates of the last few points of the segment and the horizontal direction, control the sensor to rotate around the needle at a corresponding angle, so that the sensor rotates to the front of the required moving direction of the material transport device; Step C: the material transport device moves along a predetermined trajectory, and when the sensor detects the pocket cloth, it outputs a signal to the control unit, and the control unit controls the material transport device to jump a distance L in the forward direction, and then controls the machine head (1) to start sewing; Step D: the material transport device moves along a predetermined trajectory. When the sensor detects that there is no pocket cloth, it stops outputting signals to the control unit. After receiving the feedback, the control unit controls the material transport device to continue sewing a distance L in the forward direction, and then controls the machine head (1) to stop sewing; Step E: Repeat steps BD to complete the sewing of line A, line B and line C in sequence to complete the sewing of the outer circle.

2. A kangaroo bag sewing control method according to claim 1, characterized in that: The sensor is provided with a smoothing air blowing nozzle which rotates synchronously with the sensor.

3. A kangaroo bag sewing control method according to claim 2, characterized in that: The A-section line, the B-section line and the C-section line are smoothed during the sewing process and the blowing nozzle is in a blowing state.

4. A kangaroo bag sewing control method according to claim 1, characterized in that: The machine head (1) is provided with two sections of X-axis feeding, and the two sections of X-axis have a locking function at the same time. After the two sections of X-axis take the material, the locking function is closed, and after the material is taken back, the locking function is opened.

5. A kangaroo bag sewing control method according to claim 1, characterized in that: In step D, after completing the segment line, the material transport device (1) performs empty transport to the beginning of the next segment under the action of the XY axis.

6. A kangaroo bag sewing control method according to claim 5, characterized in that: In step D, after the material transport device (1) is transported empty to the beginning of the next section, the control unit controls the sensor rotation difference angle based on the angle formed by the current coordinates and the coordinates of the next few points of the line segment and the horizontal direction, so that the sensor rotates to the front of the required moving direction of the machine head (1).

7. A kangaroo bag sewing control method according to claim 6, characterized in that: The sensor rotation difference angle is an angle formed by subtracting the horizontal angle after the previous rotation from the current horizontal angle.

8. A kangaroo bag sewing control method according to claim 7, characterized in that: The sensor rotation difference angle rotates in the same direction according to the positive difference between the current horizontal angle and the previous horizontal angle, and rotates in the opposite direction according to the negative difference.

9. A kangaroo bag sewing control method according to claim 1, characterized in that: After the outer ring sewing in step E is completed, the material transport device (1) is transported back to the origin empty, and then the material receiving program is connected to receive the material.

10. A kangaroo bag sewing control method according to claim 1, characterized in that: After the outer ring is sewn in step E, there is a plate shrinking command, and the control unit controls the outer pressure plate to remain stationary, and the inner pressure plate lifts the plate shrinking and then descends to complete the plate shrinking.

11. A kangaroo bag sewing control method according to claim 1, characterized in that: Also includes step F: repeat step E to complete the inner circle sewing.

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