Cloth seam allowance detection device and digital printing machine

Abstract

The cloth seam allowance detection device comprises a guide belt and a detection mechanism, the guide belt is used for carrying cloth to move, the detection mechanism comprises a supporting piece, a rotating piece, a linkage piece, a sensor and an induction piece, the rotating piece is located on the upper side of the guide belt and rotationally supported through the supporting piece, and the linkage piece is located on the upper side of the guide belt. The rotating axis is arranged along the width direction of the guide belt; the linkage piece is installed on one side of the rotating piece, the side, where the induction piece is installed, of the rotating piece can droop under gravity, the lower side edge of the linkage piece is close to the upper side of the guide belt, and a gap is formed between the lower side edge of the linkage piece and the guide belt; the sensor is installed on the supporting piece, the induction piece is installed on the rotating piece, the induction piece can deflect along with the rotating piece, and the induction piece and the sensor trigger induction signals. According to the cloth sewing detection device, when the protruding foreign matter on the surface of the cloth passes through the cloth sewing detection device and the height of the protruding foreign matter reaches the set height, the protruding foreign matter is in linkage with the linkage piece of the cloth sewing detection device, and the sensor and the induction piece trigger induction.

Description

Technical Field

[0001] The utility model relates to textile printing equipment, and more specifically, to a fabric seam detection device, and also to a digital printer with a seam detection function. Background Art

[0002] During digital printing, the fabric is first pre-treated with sizing and then enters the digital printing equipment for digital printing to form corresponding patterns on the surface of the fabric. The distance between the digital printing nozzle and the fabric surface is relatively close. Both raised foreign objects and seams with too high protrusions on the fabric surface may have an adverse effect on the nozzle, easily causing contact wear on the surface of the nozzle and even causing extrusion damage. Therefore, before the fabric is input into the digital printing equipment, it is necessary to detect the fabric surface to ensure that there are no abnormal positions or seams with too high protrusions on the fabric. However, in current equipment, there is no appropriate detection device that can detect the surface state of the fabric, and conventional detection equipment cannot be used in this detection environment.

[0003] Therefore, a new solution needs to be proposed to solve this problem. Summary of the Utility Model

[0004] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a fabric seam detection device that can inductively detect the protrusions on the fabric surface.

[0005] A fabric seam detection device includes a guide belt and a detection mechanism. The guide belt is used to carry the fabric to move. The detection mechanism includes a support member, a rotating member, a linkage member, a sensor, and an induction member. The rotating member is located above the guide belt. The rotating member is rotationally supported by the support member, and the axis of rotation is arranged along the width direction of the guide belt. The linkage member is installed on one side of the rotating member. The side of the rotating member where the induction member is installed can sag due to gravity. The lower side of the linkage member is close to the upper side of the guide belt, and a gap is formed between the lower side of the linkage member and the guide belt. The sensor is installed on the support member. The sensor includes a detection part. The induction member is installed on the rotating member. The induction member includes an induction part. The induction part and the detection part are mutually inductively adapted. The induction member can deflect following the rotating member and trigger an induction signal with the sensor.

[0006] The utility model is further arranged such that the rotating member has a sagging state and a yawing state. In the sagging state, the induction part of the induction member is directly opposite to the detection part of the sensor. In the yawing state, the induction part of the induction member and the detection part of the sensor are offset from each other, and the sensor triggers an induction signal.

[0007] The present utility model is further configured such that the sensor is a photoelectric sensor, a notch is formed at the sensing portion, and in the hanging state, the sensing portion of the sensing member is located within the notch; in the yaw state, the sensing portion of the sensing member leaves the notch.

[0008] The present utility model is further configured such that a detection frame is fixedly installed on the support member, two limit blocks are fixedly connected to the detection frame, and the two limit blocks are respectively located on both sides of the rotating member to block and limit the rotation amplitude of the rotating member.

[0009] The present utility model is further configured such that the sensor is fixedly installed on the upper part of the detection frame.

[0010] The present utility model is further configured such that a counterweight member is fixedly installed on the upper part of the rotating member.

[0011] The present utility model is further configured such that the support member has a rod-shaped structure and includes two support ends, and the two support ends are respectively installed on the frames on both sides; the rotating member is rotatably connected to the support member; the two support ends can adjust the height relative to the frame.

[0012] The present utility model is further configured such that the support end is connected to the frame by a bolt, the support end is located on the upper side of the frame, and a spring is provided between the support end and the frame, and the spring is sleeved outside the bolt.

[0013] The present utility model is further configured such that the gap distance between the lower side of the linkage member and the upper surface of the conveyor belt can be adjusted.

[0014] The present utility model also provides a digital printing machine, which is characterized in that it includes the fabric seam detection device as described above. Through the fabric seam detection device, raised foreign matters on the fabric surface, such as the seam of the fabric, can be detected. When the raised foreign matter on the fabric surface passes through the fabric seam detection device and the height of the raised foreign matter reaches the set height, it will be linked with the linkage member of the fabric seam detection device, and the sensor and the sensing member will trigger induction, and an induction signal can be output, and the device can make a pause, count or perform a specific action.

[0015] In summary, the present utility model has the following beneficial effects:

[0016] Through the fabric seam detection device, raised foreign matters on the fabric surface, such as the seam of the fabric, foreign matters on the fabric surface, etc., can be inductively detected; when the raised foreign matter on the fabric surface passes through the fabric seam detection device and the height of the raised foreign matter reaches the set height, the raised part will be linked with the linkage member of the fabric seam detection device, driving the rotating member, the linkage member and the sensing member to deflect, and the sensing member and the sensor will trigger induction, and an induction signal can be output, and the device can make a pause, count or perform a specific action. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a cloth seam detection device in this embodiment;

[0018] Figure 2 It is a perspective view of the detection mechanism in this embodiment;

[0019] Figure 3 is Figure 2 the enlarged view at position A in;

[0020] Figure 4 It is a front view of the detection mechanism in this embodiment;

[0021] Figure 5 is Figure 4 the enlarged view at position B in.

[0022] Reference numerals: guide belt 1; detection mechanism 2; frame 3; support member 4; support end 41; rotating member 5; connecting member 6; linkage member 7; lower side 71; detection frame 8; sensor 9; detection portion 10; sensing member 11; sensing portion 12; limiting block 13; counterweight member 14; bolt 15; spring 16. Detailed Description of the Embodiment

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0024] This embodiment discloses a cloth seam detection device. Referring to Figure 1 as shown, it includes a guide belt 1 and a detection mechanism 2. The guide belt 1 is in a ring structure, supported by guide rollers and driven by a driving mechanism, and can realize circular operation. The upper side of the guide belt 1 is generally in a horizontal structure. The upper side of the guide belt 1 can carry the cloth to move. The bonding material is coated on the surface of the guide belt 3, so that the cloth can be flatly attached to the surface of the guide belt 1.

[0025] The detection mechanism 2 is installed at the upper side of the guide belt 1 and can detect the surface of the cloth conveyed on the upper side of the guide belt 1. When there are raised foreign objects on the surface of the cloth, the detection mechanism 2 can obtain an induction, and then trigger an induction signal to control the device to pause, count, or perform specific actions. Generally, there will be a certain bulge at the seam of the cloth, which can trigger the detection signal of the detection mechanism 2, and then the seam of the passing cloth can be detected.

[0026] Referring to Figure 2 、 Figure 4As shown, the detection mechanism 2 includes a support member 4, a rotating member 5, a linkage member 7, a sensor 9, and an induction member 11.

[0027] The rotating member 5 is located above the guide belt 1. The rotating member 5 is rotatably supported by the support member 4 and can rotate relative to the guide belt 1, and the axis of its rotation is set along the width direction of the guide belt 1.

[0028] The linkage member 7 is installed on one side of the rotating member 5. The side of the rotating member 5 where the induction member 11 is installed is heavier and can naturally droop under the influence of gravity. The lower side edge 71 of the linkage member 7 is close to the upper side of the guide belt 1, and a gap is formed between the lower side edge 71 of the linkage member 7 and the guide belt 1. This gap is slightly larger than the thickness of the fabric, so that the fabric attached to the upper part of the guide belt can pass through smoothly. When there are protrusions on the fabric surface, such as the seam head and odor of the fabric, the protrusions will contact and collide with the lower side edge 71 of the linkage member 7, and then can drive the rotating member 5 and the linkage member 7 to move and rotate, and the rotating member 5 generates deflection, thereby realizing induction detection.

[0029] Refer to Figure 3 、 Figure 5 As shown, the deflection of the rotating member 5 realizes mutual induction through the sensor 9 and the induction member 11. The sensor 9 is installed on the support member 4, and the position of the sensor 9 is fixed and does not follow the movement of the rotating member 5. The sensor 9 includes a detection part 10, and the detection part 10 can receive the action signal of the induction member 11.

[0030] The induction member 11 is installed on the rotating member 5 and is relatively fixed to the rotating member 5 and can deflect synchronously with the rotating member 5. The deflection state of the rotating member 5 is transmitted to the sensor 9 by the induction member 11. The induction member 11 includes an induction part 12, and the induction part 12 is mutually inductively adapted to the detection part 10. The induction member 11 can deflect with the rotating member 5 and trigger an induction signal with the sensor 9.

[0031] During the operation of the device, the rotating member 5 generally has two states, namely the drooping state and the yaw state. In the drooping state, there is no seam head or other protruding foreign objects on the fabric surface, and there is no contact and collision with the lower side edge 71 of the linkage member 7. The rotating member 5 droops naturally, and the induction part 12 of the induction member 11 is directly opposite to the detection part 10 of the sensor 9; in the yaw state, there is a seam head or other protruding foreign objects on the fabric surface, and there is contact and collision with the lower side edge 71 of the linkage member 7. The rotating member 5 generates deflection, and the induction part 12 of the induction member 11 and the detection part 10 of the sensor 9 are offset from each other, and the sensor 9 triggers an induction signal.

[0032] The sensor 9 and the induction member 11 can be specifically selected according to actual needs. Various types of sensors can be used, and the induction member 11 can be adapted to the corresponding sensor 9 as long as the induction function can be realized.

[0033] Specifically, refer to Figure 3 、Figure 5 As shown, the sensor 9 can be a photoelectric sensor. A notch is formed at the sensing part 12 of the sensor 9, and the photoelectric signal of the sensor is sensed at the inner side position of the notch. The sensing part 12 of the sensing member 11 forms an extension rod, the size of which is slightly smaller than that of the notch, and can smoothly enter and exit the notch. When the rotating member 5 is in the hanging state, the sensing part 12 of the sensing member 11 is exactly located in the notch, and the sensing part 12 can block the photoelectric signal in the notch to realize sensing; when the rotating member 5 is in the yaw state, that is, when there is a suture or foreign object on the fabric surface, the sensing member 11 deflects following the rotating member 5, and the sensing part 12 of the sensing member 11 leaves the notch, and the sensing part 12 cannot block the photoelectric signal in the notch to realize sensing.

[0034] Refer to Figure 3 As shown, a detection frame 8 is fixedly installed on the upper side of the support member 4, and the sensor 9 is fixedly installed on the upper part of the detection frame 8. The detection frame 8 can fixedly support the sensor 9 and support it at the required height position.

[0035] Two limit blocks 13 are fixedly connected to the detection frame 8. The two limit blocks 13 are respectively located on both sides of the rotating member 5 and extend towards the middle section direction of the rotating member 5. The two limit blocks 13 can form rotational limits on both sides of the rotating member 5 and can block and limit the rotation amplitude of the rotating member 5.

[0036] In order to improve the rotational sensitivity of the rotating member 5, a counterweight member 14 is fixedly installed on the upper part of the rotating member 5. The counterweight member 14 and the linkage member 7 are respectively located on both sides of the rotation axis of the rotating member 5, and the overall center of gravity is closer to the side of the linkage member 7, so that the side of the rotating member 5 where the linkage member 7 is installed can naturally hang down by gravity; through the counterweight of the counterweight member 14, the center of gravity of the rotating member 5, the linkage member 7 and the counterweight member 14 can be closer to the position of the rotation axis, so that the lower side of the linkage member 7 can deflect with only a small force, improving the deflection sensitivity of the rotating member 5.

[0037] Refer to Figure 2 、 Figure 4 As shown, the support member 4 has a rod-shaped structure and includes two support ends 41. The support member 4 straddles the upper side of the guide belt 1, and the two support ends 41 are respectively installed on the two sides of the frame 3 for support through the frame 3. The rotating member 5 is rotatably connected to the support member 4, and the positions of the rotating member 5 close to both ends are connected to the support member 4 through bearings, and can rotate smoothly. A connecting member 6 is provided in the middle section of the rotating member 5. The connecting member 6 has a rod-shaped structure, can connect and fix the two ends of the rotating member 5, and can clamp and fix the linkage member 7 at the corresponding position of the rotating member 5 through the connecting member 6. The rotating member 5 and the connecting member 6 are connected and fixed by bolts, and a part of the linkage member 7 extends between the rotating member 5 and the connecting member 6, and can clamp and fix the linkage member 7.

[0038] Furthermore, in order to enable the fabric seam detection device to detect fabrics of different thicknesses, as well as seams and raised foreign objects of different height dimensions, the gap distance between the lower side 71 of the linkage member 7 and the upper surface of the guide belt 1 can be adjusted, which facilitates the adjustment of the equipment so that it can adapt to different detection requirements and conditions.

[0039] The two support ends 41 of the support member 4 are respectively installed on the racks 3 on both sides, and the two support ends 41 can adjust their heights relative to the racks 3. On the one hand, the height of the entire support member 4 can be adjusted, thereby adjusting the heights of the rotating member 5 and the linkage member 7, and adjusting the gap between the lower side 71 of the linkage member 7 and the upper surface of the guide belt 1. On the other hand, by adjusting the heights of the two support ends 41 respectively, the heights on both sides of the lower side 71 of the linkage member 7 can be adjusted to ensure that the gap between the lower side 71 and the upper surface of the guide belt 1 is uniform, avoiding the situation where there are deviations in the height size.

[0040] Specifically, referring to Figure 3 、 Figure 4 As shown, the support end 41 is connected to the rack 3 by bolts 15. A bolt through-hole is opened in the support end 41, and a threaded hole is opened in the rack 3. The support end 41 is located above the rack 3, and the bolt 15 passes through the support end 41 from top to bottom and is threadedly connected to the threaded hole of the rack 3, enabling the connection between the support end 41 and the rack 3. Moreover, a spring 16 is provided between the support end 41 and the rack 3. The spring 16 is sleeved outside the bolt 15. Through the support of the spring 16, the positional stability between the support end 41 and the rack 3 can be maintained, and by adjusting the bolt 15, the degree of compression of the spring 16 can be adjusted, thereby adjusting the relative position height between the support end 41 and the rack 3, and further adjusting the heights of the support end 41 and the support member 4.

[0041] This embodiment also discloses a digital printing machine, including the fabric seam detection device in the above embodiment. Through the fabric seam detection device, raised foreign objects on the fabric surface, such as fabric seams, can be detected. When the raised foreign object on the fabric surface passes through the fabric seam detection device and the height of the raised foreign object reaches the set height, it will generate a linkage with the linkage member 7 of the fabric seam detection device, and the sensor 9 and the sensing member 11 will trigger the induction and can output an induction signal, and the equipment can make a pause, count, or perform specific actions.

[0042] The above are only the preferred embodiments of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A fabric seam detection device, characterized in that, It includes a guide belt (1) and a detection mechanism (2). The guide belt (1) is used to carry the fabric for movement. The detection mechanism (2) includes a support member (4), a rotating member (5), a linkage member (7), a sensor (9) and an induction member (11). The rotating member (5) is located above the guide belt (1). The rotating member (5) is rotatably supported by the support member (4), and the axis of rotation is arranged along the width direction of the guide belt (1). The linkage member (7) is installed on one side of the rotating member (5). The side of the rotating member (5) where the induction member (11) is installed can sag under gravity. The lower side edge (71) of the linkage member (7) is close to the upper side of the guide belt (1), and a gap is formed between the lower side edge (71) of the linkage member (7) and the guide belt (1). The sensor (9) is installed on the support member (4). The sensor (9) includes a detection part (10). The induction member (11) is installed on the rotating member (5). The induction member (11) includes an induction part (12). The induction part (12) and the detection part (10) are mutually inductively adapted. The induction member (11) can deflect following the rotating member (5) and trigger an induction signal with the sensor (9).

2. The fabric seam detection device according to claim 1, wherein The rotating member (5) has a sagging state and a yawing state. In the sagging state, the induction part (12) of the induction member (11) is directly opposite to the detection part (10) of the sensor (9). In the yawing state, the induction part (12) of the induction member (11) and the detection part (10) of the sensor (9) are offset from each other, and the sensor (9) triggers an induction signal.

3. The fabric seam detection device according to claim 2, wherein The sensor (9) is a photoelectric sensor. A notch is formed at the induction part (12). In the sagging state, the induction part (12) of the induction member (11) is located within the notch. In the yawing state, the induction part (12) of the induction member (11) leaves the notch.

4. The fabric seam detection device according to claim 1, wherein, The support member (4) is fixedly installed with a detection frame (8). The detection frame (8) is fixedly connected with two limit blocks (13). The two limit blocks (13) are respectively located on both sides of the rotating member (5) and are used to block and limit the rotation amplitude of the rotating member (5).

5. The fabric seam detection device according to claim 4, characterized in that, The sensor (9) is fixedly installed on the upper part of the detection frame (8).

6. The fabric seam detection device according to claim 1, characterized in that, A counterweight member (14) is fixedly installed on the upper part of the rotating member (5).

7. The fabric seam detection device according to claim 1, characterized in that, The support member (4) is in a rod-shaped structure and includes two support ends (41). The two support ends (41) are respectively installed on the frames (3) on both sides. The rotating member (5) is rotatably connected to the support member (4). The two support ends (41) can adjust the height relative to the frame (3).

8. The fabric seam detection device according to claim 7, characterized in that, The support end (41) is connected to the frame (3) by a bolt (15). The support end (41) is located above the frame (3). A spring (16) is arranged between the support end (41) and the frame (3), and the spring (16) is sleeved outside the bolt (15).

9. A fabric seam detection device according to claim 1, characterized in that, The gap distance between the lower side edge (71) of the linkage member (7) and the upper surface of the guide belt (1) can be adjusted.

10. A digital printing machine, characterized in that, It includes the fabric seam detection device according to any one of claims 1-9.

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