Switching suction box and template machine

Abstract

The utility model discloses a switch air suction box and template machine, switch air suction box, including connecting box, first gas path, second gas path, baffle and driving part, and connecting box has the closed connecting cavity, first gas path sets up on the first board body of connecting box, and first gas path communicates with the connecting cavity, and first gas path is used for connecting high pressure fan, second gas path sets up on the second board body of connecting box, and second board body is adjacent with first board body and sets up angle, and second gas path communicates with the connecting cavity, and second gas path is used for connecting mesa, baffle is located in the connecting cavity and is parallel with second board body, and the side of baffle to second board body is equipped with the first sealing element for contacting second board body, driving part includes fixed end and the movable end of the activity relative to fixed end, and movable end is fixedly connected with baffle, is used for drive baffle to be away from or close to second board body to make connecting cavity communicate or disconnect second gas path. Can effectively improve the problem that air suction switch box exists when closing.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine technology, and in particular to a switchable suction box and template machine. Background Technology

[0002] To ensure fabric lies flat on the sewing machine table, most manufacturers use fans to draw it in, making it neat and compliant. The suction switch box controls the fan's ability to draw in fabric: when the switch box is open, the fan draws in the fabric; when the switch box is closed, the fan stops drawing in the fabric. However, existing suction switch boxes have a problem with air leakage when the suction baffle is closed downwards. This can cause delicate fabrics (such as lace) to be stretched and deformed by the suction as the machine travels along the guide rail, resulting in crooked sewing stitches.

[0003] Therefore, how to effectively improve the air leakage problem when the suction switch box is closed is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a switchable suction box and template machine that can effectively improve the problem of air leakage when the suction switch box is closed.

[0005] To achieve the above objectives, this utility model provides a switchable air intake box, comprising:

[0006] The connecting box has a closed connecting cavity;

[0007] The first air passage is located on the first plate of the connecting box. The first air passage is connected to the connecting cavity and is used to connect the high-pressure blower.

[0008] The second air passage is located on the second plate of the connecting box. The second plate is adjacent to the first plate and is set at an angle. The second air passage is connected to the connecting cavity and is used to connect the table surface.

[0009] A wind deflector is located inside the connecting cavity and is parallel to the second plate. The side of the wind deflector facing the second plate is provided with a first sealing element for contacting the second plate.

[0010] The driving component includes a fixed end and a movable end that can move relative to the fixed end. The movable end is fixedly connected to the baffle plate and is used to drive the baffle plate away from or towards the second plate to connect or disconnect the second air passage in the connecting cavity.

[0011] In one possible implementation, the third plate of the connecting box is provided with an opening, the third plate being parallel to the second plate, and the opening is used to allow the movable end of the drive member to extend into the connecting cavity.

[0012] A second sealing element is provided on the side of the wind deflector facing the third plate. The driving element can drive the wind deflector to move toward the third plate so that the wind deflector presses the second sealing element onto the third plate to seal the opening.

[0013] In one possible implementation, the fixed end of the drive component is connected to the side of the third plate away from the second plate via a connecting plate. There are two connecting plates, and the two connecting plates are symmetrically arranged on both sides of the fixed end.

[0014] In one possible implementation, the connecting box is further provided with a ventilation hole communicating with the connecting cavity, and the connecting box is also connected to an adjustment plate for adjusting the opening of the ventilation hole, so as to adjust the suction of the connecting box.

[0015] In one possible implementation, the connecting box is provided with a first connecting hole, the adjusting plate is provided with a second connecting hole, and the connector passes through the first connecting hole and the second connecting hole so that the adjusting plate is connected to the connecting box. The second connecting hole is a strip-shaped hole so that the adjusting plate can move relative to the connecting box along the length direction of the second connecting hole to adjust the opening of the ventilation hole.

[0016] In one possible implementation, the adjustment plate has an adjustment hole, the adjustment hole and the ventilation hole have the same cross-sectional dimensions perpendicular to the extension direction of the connector, and when one end of the second connection hole abuts against the connector in its own length direction, the projection of the ventilation hole and the adjustment hole along the extension direction of the connector coincides, and when the other end of the second connection hole abuts against the connector in its own length direction, the connector box covers the adjustment hole and the adjustment plate covers the ventilation hole.

[0017] In one possible implementation, a push plate is also connected to the adjusting plate. The push plate is perpendicular to the adjusting plate and is used to drive the adjusting plate to move along the length direction of the second connecting hole.

[0018] In one possible implementation, the connecting box is further provided with a connecting part, which has a mounting hole for a fastener to pass through for fixing the connecting box.

[0019] In one possible implementation, the angle between the extension direction of the second air passage and the extension direction of the first air passage is 130°-170°.

[0020] Based on the above, this application also provides a template machine, including a high-pressure blower, a table, and a switch suction box, wherein the switch suction box is disposed between the high-pressure blower and the table.

[0021] Compared with the prior art, the technical solution provided by this utility model has at least the following beneficial effects: the first air passage is set on the first plate of the connecting box, and the second air passage is set on the second plate of the connecting box. The second plate is adjacent to the first plate and set at an angle. The baffle is located in the connecting cavity and parallel to the second plate. The baffle is driven away from the second plate by the driving component, so that the connecting cavity is connected to the second air passage, and the high-pressure blower is connected to the table. The high-pressure blower is in the suction state. The baffle is driven close to the second plate by the driving component, and the first sealing member contacts the second plate, so that the connecting cavity is disconnected from the second air passage, and the high-pressure blower is disconnected from the table. The high-pressure blower is in the non-suction state. The first sealing member is used to ensure the sealing effect of the second air passage when the baffle is close to the second plate. This can avoid the problem of air leakage caused by the lack of a sealing member between the baffle and the plate with the air passage when the suction switch box is closed in the prior art, thereby effectively improving the problem of air leakage when the suction switch box is closed. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the structure of the switch suction box provided in an embodiment of the present utility model;

[0024] Figure 2 This is a structural schematic diagram of the switch suction box provided in an embodiment of the present utility model from another perspective;

[0025] Figure 3 This is a schematic diagram of the internal structure of the switch suction box provided in an embodiment of the present utility model;

[0026] Figure 4 This is a schematic diagram of the structure when the adjustment plate and the connecting box are engaged, as provided in an embodiment of the present utility model.

[0027] Figure 5 This is a schematic diagram of the structure of the adjusting plate and connecting box provided in an embodiment of the present invention from another perspective.

[0028] in:

[0029] 100-Connecting box, 110-Connecting cavity, 120-First plate, 130-Second plate, 140-Third plate, 150-Ventilation hole, 160-First connecting hole, 170-Connecting part, 171-Mounting hole;

[0030] 200 - First airway;

[0031] 300 - Second air passage;

[0032] 400 - Windshield, 410 - First seal;

[0033] 500 - Drive component, 510 - Fixed end, 520 - Moving end;

[0034] 600-Connecting plate;

[0035] 700 - Adjustment plate, 710 - Second connecting hole, 720 - Adjustment hole;

[0036] 800-Push Plate. Detailed Implementation

[0037] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0038] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] In the description of this utility model, it should be understood that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model.

[0040] The purpose of this invention is to provide a switchable suction box and template machine that can effectively improve the problem of air leakage when the suction switch box is closed.

[0041] Please see Figures 1 to 5To achieve the above objectives, this utility model provides a switchable air intake box, including a connecting box 100, a first air passage 200, a second air passage 300, a baffle plate 400, and a driving component 500. The connecting box 100 can be a cubic structure formed by six side plates, with a closed connecting cavity 110 inside. However, the structure of the connecting box 100 is not limited to this. The first air passage 200 is disposed on the first plate 120 of the connecting box 100, and communicates with the connecting cavity 110. The first air passage 200 is used to connect the high-pressure blower. The second air passage 300 is disposed on the second plate 130 of the connecting box 100, and the second plate 130 is adjacent to the first plate 120 and arranged at an angle. The second air passage 300 communicates with the connecting cavity 110 and is used to connect the table surface. The cross-sectional diameters of the first air passage 200 and the second air passage 300 are the same. The angle between the extension direction of the second air passage 300 and the extension direction of the first air passage 200 is preferably 130°-170°. To effectively avoid air loss caused by an excessively small angle between the extension directions of the first air passage 200 and the second air passage 300; the baffle plate 400 is located inside the connecting cavity 110 and is parallel to the second plate 130, and the side of the baffle plate 400 facing the second plate 130 is provided with a first sealing element 410 for contacting the second plate 130; the driving member 500 includes a fixed end 510 and a movable end 520 that can move relative to the fixed end 510, the movable end 520 is fixedly connected to the baffle plate 400, and is used to drive the baffle plate 400 away from or closer to the second plate 130 so that the connecting cavity 110 connects or disconnects the second air passage 300.

[0042] A first air passage 200 is installed on the first plate 120 of the connecting box 100, and a second air passage 300 is installed on the second plate 130 of the connecting box 100. The second plate 130 is adjacent to the first plate 120 and is set at an angle. A baffle plate 400 is located inside the connecting cavity 110 and is parallel to the second plate 130. A driving member 500 drives the baffle plate 400 away from the second plate 130, so that the connecting cavity 110 is connected to the second air passage 300, connecting the high-pressure blower and the table. The high-pressure blower is in suction mode. A driving member 500 drives the baffle plate 400 closer to the second plate 130, and the first sealing member 410 contacts the second plate 130. The connecting cavity 110 on the plate 130 is disconnected from the second air passage 300, thus disconnecting the high-pressure blower from the table surface. The high-pressure blower is in a non-suction state. The first seal 410 ensures a proper seal between the baffle plate 400 and the second air passage 300 when the baffle plate 400 is close to the second plate 130. This avoids the air leakage problem caused by the lack of a seal between the baffle plate 400 and the plate with the air passage when the suction switch box is closed in the prior art. This effectively improves the air leakage problem when the suction switch box is closed, preventing delicate fabrics (such as lace) from being deformed by the suction force during the guide rail's movement, thus avoiding distorted sewing stitches. Furthermore, it should be noted that compared to the prior art, the suction switch box in this embodiment has a lower loss rate during the high-pressure blower's suction process.

[0043] In one possible implementation, the third plate 140 of the connecting box 100 has an opening, which is parallel to the second plate 130. The opening allows the movable end 520 of the driving member 500 to extend into the connecting cavity 110. It is understood that the driving member 500 can be a cylinder, with the fixed end 510 of the driving member 500 serving as the cylinder barrel and the movable end 520 serving as the piston rod. The cylinder has at least two piston rods, all of which are fixedly connected to the baffle plate 400 and can movably pass through the opening. The arrangement of multiple piston rods effectively ensures that the baffle plate 400 is parallel to the second plate 130. Specifically, the driving member 500 has two fixed piston rods, which are linearly distributed. Of course, the type of driving member 500 is not limited to a cylinder; it can also be replaced by a linear driving member 500 such as a linear motor without affecting the purpose of this invention.

[0044] A second sealing element is provided on the side of the wind deflector 400 facing the third plate 140. The driving member 500 can drive the wind deflector 400 to move towards the third plate 140, so that the wind deflector 400 presses the second sealing element against the third plate 140 to seal the opening. Both the first sealing element 410 and the second sealing element can be made of slow-rebound sponge. The projected contour of the port of the second air passage 300 on the second plate 130 along the piston rod movement direction is located within the projected contour of the first sealing element 410 along the piston rod movement direction. The opening is along the piston rod... The projection profile of the piston rod in the direction of movement is located within the projection profile of the second seal in the direction of movement of the piston rod, such that when the baffle plate 400 moves toward the second plate 130 until the first seal 410 contacts and presses against the second plate 130, the second air passage 300 is not connected to the connecting cavity 110, but the opening is connected to the connecting cavity 110. When the baffle plate 400 moves toward the third plate 140 until the second seal contacts and presses against the third plate 140, the second air passage 300 is connected to the connecting cavity 110, but the opening is not connected to the connecting cavity 110.

[0045] Furthermore, the switchable air intake box also includes a detection element and a controller. The detection element is used to detect whether the first seal 410 abuts against the second plate 130 of the connecting box 100 and whether the second seal abuts against the third plate 140 of the connecting box 100. The detection element can be a pressure sensor, a contact sensor, or a limit switch, etc. The controller is connected to the detection element and the drive element 500 respectively. When the second air passage 300 needs to be closed from the connecting cavity 110, when the detection element detects that the first seal 410 abuts against the second plate 130 of the connecting box 100, the detection element sends a signal to the controller. After receiving the signal, the controller controls the drive element 500 to stop operating. When the second air passage 300 needs to be connected to the connecting cavity 110, when the detection element detects that the second seal abuts against the third plate 140 of the connecting box 100, the detection element sends a signal to the controller. After receiving the signal, the controller controls the drive element 500 to stop operating, to avoid the baffle 400 moving excessively and colliding with the connecting box 100.

[0046] It should be noted that the controller should include a signal receiving unit, a signal judging unit, and a signal transmitting unit. The signal receiving unit receives electrical signals sent by the detection element. The signal judging unit is electrically connected to the signal receiving unit so that it can determine whether the signal received by the signal receiving unit is a trigger signal. The signal transmitting unit is electrically connected to the signal judging unit so that it can send the judgment signal generated by the signal judging unit to the drive unit 500. The specific configuration of the signal receiving unit, signal judging unit, and signal transmitting unit can refer to the prior art; in this utility model, only the application scenario of the above three components has been changed, and no substantial improvement has been made. Obviously, controllers with this structure are widely used in existing automatic control equipment, such as MCUs, DSPs, or microcontrollers.

[0047] In one possible implementation, the fixed end 510 of the drive member 500 is connected to the side of the third plate 140 away from the second plate 130 via a connecting plate 600. There are two connecting plates 600, which are symmetrically arranged on both sides of the fixed end 510. The connecting plates 600 have an L-shaped structure and include a first connecting body and a second connecting body that are perpendicular to each other. The first connecting body is connected to and attached to the fixed end 510 of the drive member 500, and the second connecting body is connected to and attached to the side of the third plate 140 away from the second plate 130, so that the fixed end 510 of the drive member 500 is fixed relative to the third plate 140. The connection between the first connecting body and the drive member 500, and the connection between the second connecting body and the third plate 140, can be, but are not limited to, a detachable connection (e.g., by bolt connection) and a fixed connection (e.g., by welding), as long as the above purpose can be achieved.

[0048] In one possible implementation, the connecting box 100 is further provided with a ventilation hole 150 communicating with the connecting cavity 110, and the connecting box 100 is also connected to an adjusting plate 700 for adjusting the opening of the ventilation hole 150 to adjust the suction force of the connecting box 100. The connecting box 100 is provided with a first connecting hole 160, and the adjusting plate 700 is provided with a second connecting hole 710. A connector passes through the first connecting hole 160 and the second connecting hole 710 so that the adjusting plate 700 is connected to the connecting box 100. The second connecting hole 710 is a strip-shaped hole so that the adjusting plate 700 can move relative to the connecting box 100 along the length direction of the second connecting hole 710 to adjust the ventilation hole 150. With a 0-degree opening, the adjustment plate 700 has an adjustment hole 720. The cross-sectional dimensions of the adjustment hole 720 and the ventilation hole 150 perpendicular to the extension direction of the connector are the same. When one end of the second connection hole 710 abuts against the connector in its own length direction, the projections of the ventilation hole 150 and the adjustment hole 720 along the extension direction of the connector coincide. At this time, the ventilation hole 150 is opened to the maximum, and the suction force of the air inlet reaches the minimum. When the other end of the second connection hole 710 abuts against the connector in its own length direction, the connecting box 100 covers the adjustment hole 720 and the adjustment plate 700 covers the ventilation hole 150. The ventilation hole 150 is closed, and the suction force of the ventilation hole 150 reaches the maximum.

[0049] In one possible implementation, a push plate 800 is also connected to the adjusting plate 700. The push plate 800 is perpendicular to the adjusting plate 700 and is used to drive the adjusting plate 700 to move along the length direction of the second connecting hole 710, so as to attach... Figure 4Taking the perspective of the second connecting hole 710 as an example, at this time, the left end of the second connecting hole 710 abuts against the connector, and the projection of the ventilation hole 150 and the adjustment hole 720 along the extension direction of the connector coincides. The ventilation hole 150 is opened to the maximum, and the suction force of the air inlet reaches the minimum. When it is necessary to adjust the opening of the ventilation hole 150 to a smaller size, first loosen the connector, and then apply a force to the left along the length direction of the second connecting hole 710 on the push plate 800, so that the push plate 800 drives the adjustment plate 700 to move to the left in sync. The plate located on the right side of the adjustment hole 720 moves to the left to cover the right end of the ventilation hole 150, and the opening of the ventilation hole 150 becomes smaller. When the opening of the ventilation hole 150 reaches the preset opening size, tighten the connector to fix the adjustment plate 700.

[0050] It should be noted that the second connecting hole 710, the first connecting hole 160, and the connector are all one-to-one correspondences, and there are multiple of each, which effectively prevents the adjustment plate 700 from tilting. In addition, a third sealing element can be added to the side of the adjustment plate 700 facing the connecting box 100. The first sealing element 410, the second sealing element, and the third sealing element are all annular or frame-shaped structures. The projection contours of the ventilation hole 150 and the adjustment hole 720 on the adjustment plate 700 are all located within the projection contour of the third sealing element on the adjustment plate 700. The locking force of the connector can make the adjustment plate 700 press the third sealing element tightly onto the connecting box 100, effectively ensuring the sealing effect between the adjustment plate 700 and the connecting box 100 when the ventilation hole 150 is closed.

[0051] In one possible implementation, the connecting box 100 is further provided with a connecting portion 170, which has a mounting hole 171 for a fastener to pass through for fixing the connecting box 100. The mounting side of the connecting portion 170 can be a planar structure so that after the connecting box 100 is attached to the mounting platform, the fastener passes through the mounting hole 171 to fix the connecting box 100 and the mounting platform relative to each other. The fastener can be, but is not limited to, a bolt. The connecting portion 170 can be set to protrude from the connecting box 100 to effectively improve the installation efficiency of the connecting box 100.

[0052] Based on the above, this application also provides a template machine, including a high-pressure blower, a work surface, and a switchable suction box. The switchable suction box is located between the high-pressure blower and the work surface, so that the high-pressure blower and the work surface are frequently disconnected or connected, which has the same beneficial effect. The remaining structure of the template machine can refer to the prior art, and will not be described in detail here.

[0053] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0054] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0055] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A switchable suction box, characterized in that, include: The connecting box (100) has a closed connecting cavity (110); The first air passage (200) is disposed on the first plate (120) of the connecting box (100). The first air passage (200) is connected to the connecting cavity (110). The first air passage (200) is used to connect the high-pressure blower. The second air passage (300) is disposed on the second plate (130) of the connecting box (100). The second plate (130) is adjacent to the first plate (120) and is set at an angle. The second air passage (300) is connected to the connecting cavity (110). The second air passage (300) is used to connect the table surface. A wind deflector (400) is located inside the connecting cavity (110) and parallel to the second plate (130). The wind deflector (400) has a first sealing element (410) on the side facing the second plate (130) for contacting the second plate (130). The driving component (500) includes a fixed end (510) and a movable end (520) that is movable relative to the fixed end (510). The movable end (520) is fixedly connected to the wind deflector (400) and is used to drive the wind deflector (400) away from or towards the second plate (130) so that the connecting cavity (110) connects or disconnects the second air passage (300).

2. The switchable suction box according to claim 1, characterized in that, The third plate (140) of the connecting box (100) is provided with an opening, the third plate (140) is parallel to the second plate (130), and the opening is used to allow the movable end (520) of the driving member (500) to extend into the connecting cavity (110); The wind deflector (400) is provided with a second sealing element on the side facing the third plate (140), and the driving member (500) can drive the wind deflector (400) to move toward the third plate (140) so that the wind deflector (400) presses the second sealing element onto the third plate (140) to seal the opening.

3. The switchable suction box according to claim 2, characterized in that, The fixed end (510) of the driving component (500) is connected to the side of the third plate (140) away from the second plate (130) via a connecting plate (600). There are two connecting plates (600), and the two connecting plates (600) are symmetrically arranged on both sides of the fixed end (510).

4. The switchable air intake box according to claim 1, characterized in that, The connecting box (100) is also provided with a ventilation hole (150) communicating with the connecting cavity (110), and the connecting box (100) is also connected with an adjustment plate (700) for adjusting the opening of the ventilation hole (150) to adjust the suction of the connecting box (100).

5. The switchable suction box according to claim 4, characterized in that, The connecting box (100) is provided with a first connecting hole (160), and the adjusting plate (700) is provided with a second connecting hole (710). The connector passes through the first connecting hole (160) and the second connecting hole (710) so that the adjusting plate (700) is connected to the connecting box (100). The second connecting hole (710) is a strip hole so that the adjusting plate (700) can move relative to the connecting box (100) along the length direction of the second connecting hole (710) to adjust the opening of the ventilation hole (150).

6. The switchable suction box according to claim 5, characterized in that, The adjusting plate (700) has an adjusting hole (720). The adjusting hole (720) and the ventilation hole (150) have the same cross-sectional dimensions perpendicular to the extension direction of the connector. When one end of the second connecting hole (710) abuts against the connector in its own length direction, the projection of the ventilation hole (150) and the adjusting hole (720) along the extension direction of the connector coincides. When the other end of the second connecting hole (710) abuts against the connector in its own length direction, the connecting box (100) covers the adjusting hole (720) and the adjusting plate (700) covers the ventilation hole (150).

7. The switchable suction box according to claim 5, characterized in that, A push plate (800) is also connected to the adjusting plate (700). The push plate (800) is perpendicular to the adjusting plate (700) and is used to drive the adjusting plate (700) to move along the length direction of the second connecting hole (710).

8. The switchable air intake box according to any one of claims 1-7, characterized in that, The connecting box (100) is also provided with a connecting part (170), and the connecting part (170) has a mounting hole (171) for a fastener to pass through for fixing the connecting box (100).

9. The switchable air intake box according to any one of claims 1-7, characterized in that, The angle between the extension direction of the second air passage (300) and the extension direction of the first air passage (200) is 130°-170°.

10. A template machine, characterized in that, It includes a high-pressure blower, a work surface, and a switch suction box as described in any one of claims 1-9, wherein the switch suction box is disposed between the high-pressure blower and the work surface.

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