Computerized embroidery machine

Abstract

The application discloses a computerized embroidery machine, which acquires the first upper end face space height of the right frame or the second upper end face space height of the left frame in real time through a sensor, controls whether the embroidery frame stops moving according to the space heights of the first upper end face and the second upper end face, and avoids the risk that the right frame or the left frame in the cloth clamping state collides with the head and the needle due to abnormal overall height increase of the air bag caused by abnormal air pressure change. Alternatively, the sensor acquires the space height of the top of foreign matters located between the right frame and the left frame in real time, controls whether the head stops working according to the space height of the top of the foreign matters, and avoids the risk that the foreign matters collide with the head and the needle.

Description

Technical Field

[0001] This utility model generally relates to the field of embroidery machine technology, and more particularly to a computerized embroidery machine. Background Technology

[0002] A computerized embroidery machine includes a frame and an image acquisition unit. The frame consists of a main beam and a lower frame, both positioned vertically. A movable embroidery head is mounted on the main beam, capable of reciprocating along the length of the main beam. The lower frame has a platform with an embroidery frame that can move in both the X and Y directions.

[0003] When the computerized embroidery machine is working, the image acquisition device takes a picture of the current section of fabric clamped by the embroidery frame at the current moment. The image acquisition device captures the pattern on the surface of the fabric on the current section of fabric and transmits it to the control system. The control system controls the movement trajectory of the embroidery frame and the machine head according to the received pattern data to ensure that the embroidery needle is accurately positioned.

[0004] In practical applications, the pressure change inside the airbag causes the overall height of the left or right frame in the fabric clamping state to increase, which poses a risk of collision between the left or right frame and the needle of the machine head during the movement of the left or right frame. Utility Model Content

[0005] This utility model provides a computerized embroidery machine, including: a main beam, an embroidery frame, and a sensor.

[0006] The main beam is equipped with a machine head, which reciprocates along the length of the main beam. The embroidery frame includes a left frame and a right frame, both of which include airbags. The airbags allow fabric to be sandwiched between the left frame and the right frame. The right frame includes a first upper surface, and the left frame includes a second upper surface. The sensor is mounted on the main beam and is used to detect the spatial height of the first upper surface or the second upper surface. Based on the spatial height of the first upper surface or the second upper surface, the sensor controls whether the embroidery frame stops moving, or... The sensor is used to detect the height of the top of the foreign object located between the left frame and the right frame, and to control whether the embroidery head stops based on the height of the top of the foreign object.

[0007] As an implementation method, the sensor includes an anti-collision sensor, which includes a movable detection part arranged vertically, with its lowest position lower than the needle tip of the machine head.

[0008] As an implementation method, at least two anti-collision sensors are provided on the main beam, and the two anti-collision sensors are located on both sides of the movement stroke of the machine head.

[0009] As an alternative implementation, the collision avoidance sensor and the machine head are located on the same side of the main beam.

[0010] As an implementation, the left frame includes a left frame body and a second fabric clamping component, the left frame body and the second fabric clamping component being separately disposed; the right frame includes a right frame body and a first fabric clamping component, the right frame body and the first fabric clamping component being separately disposed; the first and second fabric clamping components are located between the left frame body and the right frame body.

[0011] In one possible implementation, the first fabric clamping assembly includes a fabric clamping base, a fabric pressing member, and the airbag. The fabric pressing member and the fabric clamping base are arranged vertically, and the fabric pressing member has the first upper end surface. One of the fabric clamping base and the fabric pressing component is provided with an airbag mounting cavity. The airbag is disposed in the airbag mounting cavity. The fabric clamping base and the fabric pressing component are clamped together by the expansion of the airbag. The fabric is released by the release of the airbag by the depressurization of the airbag.

[0012] As an implementation method, the fabric clamping base is provided with the airbag mounting cavity, and two airbags are disposed in the airbag mounting cavity. The two airbags are spaced apart to form a gap, and the gap is used to place the fabric to be clamped; the fabric pressing component includes a fabric pressing cover, and the fabric pressing cover is provided with an insertion protrusion, which is inserted into the gap. When the airbag inflates, the gap width decreases, and the insert protrusion clamps the fabric with the airbag; when the airbag depressurizes, the gap width increases, and the insert protrusion releases the fabric with the airbag.

[0013] As an alternative implementation, a control module, an X-axis driver, and a Y-axis driver are also included. The X-axis driver drives the embroidery frame to move along the X-direction, and the Y-axis driver drives the embroidery frame to move along the Y-direction. The control module is electrically connected to the X-axis driver, the Y-axis driver, the sensor, and the machine head, respectively. The control module controls whether the X-axis driver and the Y-axis driver stop moving based on the spatial height of the first upper surface or the second upper surface; or, the control module controls the machine head to stop embroidering based on the spatial height of the top of the foreign object.

[0014] As an alternative implementation, an alarm is also included, which is electrically connected to the control module. The alarm sounds after the X-axis driver and the Y-axis driver stop moving, or after the machine head stops working.

[0015] As one possible implementation, the alarm includes a buzzer.

[0016] The above-described solution uses sensors to obtain the real-time spatial height of the first upper surface of the right frame or the second upper surface of the left frame. Based on these heights, the embroidery frame's movement is controlled to prevent collisions with the machine head and needles caused by abnormal increases in overall height due to abnormal changes in airbag pressure when the right or left frame is clamped. Alternatively, sensors can obtain the real-time spatial height of the top of any foreign object located between the right and left frames. The machine head's operation is controlled based on the height of the foreign object's top, preventing collisions between the foreign object and the machine head and needles. Attached Figure Description

[0017] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 A front view schematic diagram of a computerized embroidery machine provided for an embodiment of this utility model; Figure 2 for Figure 3 A magnified view of a portion of the image; Figure 3 A schematic diagram showing the sensor and the mounting position of the machine head according to an embodiment of this utility model; Figure 4 A schematic diagram of the structure of the embroidery frame provided in an embodiment of this utility model; Figure 5 A schematic diagram of the structure of the embroidery frame provided in an embodiment of this utility model; Main beam 10, machine head 20, machine needle 21, table 30; Embroidery frame 40, right side frame 41, first fabric clamping assembly 411, first fabric pressing piece 4111, fabric pressing cover 41111, insertion protrusion 41112, first fabric clamping base 4112, airbag mounting cavity 41121, airbag 4113, right frame 412, left side frame 42, second fabric clamping assembly 421, left frame 422, front side frame 43, rear side frame 44; Collision avoidance sensor 50, detection unit 51, image acquisition unit 60. Detailed Implementation

[0018] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] The computerized embroidery machine includes a frame and an image acquisition unit 60. The frame includes a main beam 10 and a lower frame, both arranged vertically. A movable embroidery head 20 is mounted on the main beam 10, and the embroidery head 20 can reciprocate along the length of the main beam 10. A table 30 is mounted on the lower frame, and an embroidery frame 40 that can move in the X and Y directions is mounted on the table 30. The X direction is parallel to the length of the main beam 10, and the Y direction is perpendicular to the X direction.

[0021] The embroidery frame 40 includes a left border 42, a front border 43, a right border 41, and a rear border 44. These borders are connected end-to-end to form a rectangular frame. Each of the borders has a fabric clamping component, which can be in a clamped state or a loose state. When clamped, the frame 40 can hold the fabric to be embroidered, ensuring appropriate tension. When loose, the frame releases the embroidered fabric, allowing it to leave the frame. The movement of the embroidery frame 40 is controlled by X and Y drivers to ensure embroidery accuracy.

[0022] It should be noted that the fabric clamping assembly includes an airbag, and the fabric clamping state and the loosening state are switched by adjusting the air pressure of the airbag.

[0023] The image acquisition device 60 is located directly above the preset position on the table 30. The image acquisition device 60 can be an industrial camera or a video camera. Before embroidery, the image acquisition device 60 captures the pattern on the fabric surface and transmits it to the control module. The control module controls the movement trajectory of the embroidery frame 40 and / or the movement trajectory of the machine head 20 according to the pattern changes, so that the embroidery is completed at the preset position of the pattern.

[0024] In practical applications, due to the pressure change inside the airbag, the overall height of the left frame 42 or right frame 41 in the clamped state increases, which poses a risk of collision between the left frame 42 or right frame 41 and the needle of the machine head 20 during the movement.

[0025] Based on this, this application proposes a computerized embroidery machine that can avoid the risk of collision between the left frame 42 or the right frame 41, which are in a fabric clamping state, and the needle of the machine head 20 due to the overall increase in height.

[0026] In detail, such as Figures 1-5As shown, the computerized embroidery machine includes a main beam 10, an embroidery frame 40, and sensors. A machine head 20 is mounted on the main beam 10, and the machine head 20 reciprocates along the length of the main beam 10. The embroidery frame 40 includes a left frame 42 and a right frame 41, both of which include airbags. The airbags clamp fabric between the left frame 42 and the right frame 41. The right frame 41 includes a first upper surface a, which is the surface facing the main beam 10. The left frame 42 includes a second upper surface, which is also the surface facing the main beam 10.

[0027] It should be noted that, as Figures 4-5 As shown, the left frame 42 includes a left frame body 422 and a second fabric clamping assembly 421, which are separately configured. The right frame 41 includes a right frame body 412 and a first fabric clamping assembly 411, which are also separately configured. The first fabric clamping assembly 411 has the same structure as the second fabric clamping assembly 421 and is located between the left frame body 422 and the right frame body 412.

[0028] refer to Figure 5 The first fabric clamping assembly 411 includes a first fabric clamping base 4112, a first fabric pressing member 4111, and an airbag 4113. The first fabric pressing member 4111 and the first fabric clamping base 4112 are arranged vertically, and the surface of the first fabric pressing member 4111 facing the main beam 10 is the first upper end surface a. The first fabric clamping base 4112 and the first fabric pressing member 4111 are elongated strips, and their lengths match the lengths of the left frame 422 or the right frame 412. One of the first fabric clamping base 4112 and the first fabric pressing member 4111 is provided with an airbag mounting cavity 41121. The airbag is disposed in the airbag mounting cavity 41121. The airbag 4113 inflates to make the first fabric clamping base 4112 and the first fabric pressing member 4111 clamp the fabric; the airbag 4113 depressurizes to release the fabric from the first fabric clamping base 4112 and the first fabric pressing member 4111.

[0029] For example, such as Figure 5 As shown, the first fabric clamping base 4112 has an airbag mounting cavity 41121, and two airbags 4113 are disposed within the airbag mounting cavity 41121. The two airbags 4113 are spaced apart to form a gap, which is used to hold the fabric to be clamped. The first fabric pressing component 4111 includes a fabric pressing cover 41111, and the fabric pressing cover 41111 has an insertion protrusion 41112, which is inserted into the gap. When the airbag 4113 inflates, the gap width decreases, and the insertion protrusion 41112 and the airbag 4113 clamp the fabric; when the airbag 4113 depressurizes, the gap width increases, and the insertion protrusion 41112 and the airbag 4113 release the fabric.

[0030] The second fabric clamping assembly 421 includes a second fabric clamping base, a second fabric pressing member, and an airbag 4113. The second fabric pressing member and the second fabric clamping base are arranged vertically, and the surface of the second fabric pressing member facing the main beam 10 is the second upper end surface.

[0031] The sensor is installed on the main beam 10. The sensor is used to detect the spatial height of the first upper surface a or the second upper surface, and controls whether the embroidery frame 40 stops moving based on the spatial height of the first upper surface a and the second upper surface. Alternatively, the sensor is used to detect the spatial height of the top of the foreign object located between the left frame 42 and the right frame 41, and controls whether the machine head 20 stops working based on the spatial height of the top of the foreign object.

[0032] It should be noted that the sensors, X-axis driver, Y-axis driver, and head 20 are electrically connected to the control module. The sensors include, but are not limited to, an anti-collision sensor 50, which includes a movable detection part 51. The detection part 51 is vertically positioned, with its lowest point below the tip of the needle 21 of the head 20. Thus, either the first upper surface a or the second upper surface will collide with the detection part 51 first, or the top of a foreign object located between the left frame 42 and the right frame 41 will collide with the detection part 51 first.

[0033] In one specific embodiment, at least in combination Figure 2 and Figure 3 As shown, during computerized embroidery, at the current moment, the first fabric clamping assembly 411 clamps the fabric, and the second fabric clamping assembly 421 clamps the fabric. If the airbag pressure of the first fabric clamping assembly 411 decreases, the first pressing fabric piece 4111 jumps upward, causing the spatial height of the first upper surface a to increase; or, if the airbag pressure of the second fabric clamping assembly 421 decreases, the second pressing fabric piece jumps upward, causing the spatial height of the second upper surface to increase. If the spatial height of the first upper surface a or the second upper surface matches the spatial height of the needle tip 21, there is a risk of the needle 21 being collided. Since the lowest position of the detection part 51 of the anti-collision sensor 50 is lower than the needle tip position of the needle 21 of the machine head 20, the first upper surface a or the second upper surface will collide with the detection part 51 first. At the same time, the anti-collision sensor 50 sends a corresponding signal to the X-axis driver and the Y-axis driver, and the X-axis driver and the Y-axis driver stop moving, thereby stopping the movement of the embroidery frame 40 and avoiding the collision between the embroidery frame 40 and the needle 21 of the machine head 20.

[0034] In another specific embodiment, at least in combination Figure 2 and Figure 3As shown, during computerized embroidery, at the current moment, the first fabric clamping assembly 411 clamps the fabric, and the second fabric clamping assembly 421 clamps the fabric. If a foreign object accidentally enters between the left frame 42 and the right frame 41, for example, a part on the main beam 10 falls between the left frame 42 and the right frame 41 due to loose installation, the height of the top of the foreign object matches the height of the needle tip 21, posing a risk of collision to the needle 21. Since the lowest position of the detection part 51 of the anti-collision sensor 50 is lower than the needle tip position of the needle 21 of the head 20, the top of the foreign object will collide with the detection part 51 first. At the same time, the anti-collision sensor 50 sends a corresponding signal to the head 20, thereby stopping the head 20 from working and preventing the foreign object from colliding with the needle 21 of the head 20.

[0035] The main beam 10 is equipped with at least two anti-collision sensors 50, which are located on both sides of the movement stroke of the machine head 20.

[0036] like Figure 2 As shown, a machine head 20 and two anti-collision sensors 50 are installed on the front side of the main beam 10. The two anti-collision sensors 50 are spaced apart, and the machine head 20 is located between the two anti-collision sensors 50. The stroke of the machine head 20 is less than the distance between the two anti-collision sensors 50. One anti-collision sensor 50 is set corresponding to the left frame 42, and the other anti-collision sensor 50 is set corresponding to the right frame 41. This allows for simultaneous real-time detection of the spatial height of the first upper surface a and the second upper surface. The first upper surface a and the second upper surface collide with the detection part 51 of the anti-collision sensor 50 first, preventing the needle 21 from colliding with the first upper surface a and the second upper surface, thus improving the safety of the needle 21. Alternatively, the detection parts 51 of the anti-collision sensors 50 on the left and right sides of the machine head 20 collide with foreign objects first, preventing the needle 21 from colliding with foreign objects, thus improving the safety of the needle.

[0037] In addition, the computerized embroidery machine also includes an alarm, which includes, but is not limited to, a buzzer, and is electrically connected to the control module. The alarm sounds when the X-axis drive or Y-axis drive stops moving; or when the machine head 20 stops working. This setup allows operators to be aware of risks immediately and promptly address any foreign objects or malfunctions in the first or second fabric clamping components, ensuring the computerized embroidery machine can continue embroidery normally.

[0038] In summary, this application uses sensors to obtain the spatial height of the first upper surface a of the right frame 41 or the spatial height of the second upper surface of the left frame 42 in real time. Based on the spatial heights of the first and second upper surfaces a, the embroidery frame 40 is controlled to stop moving, thus avoiding the risk of the right frame 41 or left frame 42, which is in a fabric-clamping state, experiencing an abnormal increase in overall height due to abnormal changes in airbag pressure, and colliding with the machine head and needle. Alternatively, the sensors can obtain the spatial height of the top of a foreign object located between the right frame 41 and the left frame 42 in real time, and the machine head 20 is controlled to stop working based on the spatial height of the foreign object, avoiding the risk of the foreign object colliding with the machine head and needle.

[0039] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "frame" and "layout" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "frame" or "layout" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0040] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A computerized embroidery machine, characterized in that, include: A main beam (10) is provided with a machine head (20), and the machine head (20) reciprocates along the length of the main beam (10); Embroidery frame (40), the embroidery frame (40) includes: a left frame (42) and a right frame (41), the left frame (42) and the right frame (41) both include airbags (4113), the airbags (4113) cause the left frame (42) and the right frame (41) to clamp the fabric, the right frame (41) includes a first upper surface (a), and the left frame (42) includes a second upper surface; The sensor, installed on the main beam (10), is used to detect the spatial height of the first upper surface (a) or the second upper surface, and to control whether the embroidery frame (40) stops moving based on the spatial height of the first upper surface (a) and the second upper surface, or... The sensor is used to detect the height of the top of the foreign object located between the left frame (42) and the right frame (41), and to control whether the machine head (20) stops embroidery based on the height of the top of the foreign object.

2. The computerized embroidery machine according to claim 1, characterized in that, The sensor includes an anti-collision sensor (50), which includes a movable detection part (51) arranged in a vertical direction, with its lowest position lower than the needle tip of the head (20).

3. The computerized embroidery machine according to claim 2, characterized in that, At least two anti-collision sensors (50) are provided on the main beam (10), and the two anti-collision sensors (50) are located on both sides of the movement stroke of the machine head (20).

4. The computerized embroidery machine according to claim 2, characterized in that, The anti-collision sensor (50) and the machine head (20) are located on the same side of the main beam (10).

5. The computerized embroidery machine according to claim 2, characterized in that, The left frame (42) includes a left frame body (422) and a second fabric clamping assembly (421), the left frame body (422) and the second fabric clamping assembly (421) are separately arranged. The right frame (41) includes a right frame body (412) and a first fabric clamping assembly (411), the right frame body (412) and the first fabric clamping assembly (411) are separately arranged. The first and second fabric clamping assemblies are located between the left frame body (422) and the right frame body (412).

6. The computerized embroidery machine according to claim 5, characterized in that, The first fabric clamping assembly (411) includes a fabric clamping base (4112), a fabric pressing member (4111), and the airbag (4113). The fabric pressing member (4111) and the fabric clamping base (4112) are arranged vertically. The fabric pressing member (4111) is provided with the first upper end surface (a). One of the fabric clamping base (4112) and the fabric pressing member (4111) is provided with an airbag mounting cavity (41121). The airbag (4113) is disposed in the airbag mounting cavity (41121). The airbag (4113) is inflated to make the fabric clamping base (4112) and the fabric pressing member (4111) cooperate to clamp the fabric. The airbag (4113) is depressurized to make the fabric clamping base (4112) and the fabric pressing member (4111) release the fabric.

7. The computerized embroidery machine according to claim 6, characterized in that, The fabric clamping base (4112) is provided with the airbag mounting cavity (41121), and two airbags (4113) are disposed in the airbag mounting cavity (41121). The two airbags (4113) are spaced apart to form a gap, and the gap is used to set the fabric to be clamped. The pressing element (4111) includes a pressing cover (41111), the pressing cover (41111) is provided with an insertion protrusion (41112), the insertion protrusion (41112) is inserted into the gap; When the airbag (4113) inflates, the gap width decreases, and the insertion protrusion (41112) clamps the fabric with the airbag (4113); when the airbag (4113) depressurizes, the gap width increases, and the insertion protrusion (41112) and the airbag (4113) release the fabric.

8. The computerized embroidery machine according to any one of claims 1-6, characterized in that, The system also includes a control module, an X-axis driver, and a Y-axis driver. The X-axis driver drives the embroidery frame (40) to move along the X direction, and the Y-axis driver drives the embroidery frame (40) to move along the Y direction. The control module is electrically connected to the X-axis driver, the Y-axis driver, the sensor, and the machine head, respectively. The control module controls whether the X-axis driver and the Y-axis driver stop moving based on the spatial height of the first upper surface (a) or the second upper surface. The control module controls the embroidery head to stop embroidering based on the spatial height of the top of the foreign object.

9. The computerized embroidery machine according to claim 8, characterized in that, It also includes an alarm, which is electrically connected to the control module. The alarm sounds when the X-axis driver and the Y-axis driver stop moving, or when the machine head stops working.

10. The computerized embroidery machine according to claim 9, characterized in that, The alarm includes a buzzer.

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