Fabric tensioning mechanism of embroidery machine and embroidery machine

Abstract

The invention relates to the technical field of embroidery machines, and provides a fabric tensioning mechanism of an embroidery machine and the embroidery machine.The fabric tensioning mechanism comprises a basic part, two clamping assemblies and a long strip, and the distance between the two clamping assemblies is adjustable; the distance adjusting assembly is used for adjusting the distance between the two clamping assemblies, the monitoring assembly is used for monitoring the loose state of the fabric in real time when the fabric is embroidered, and when the monitoring assembly monitors that the loose amplitude of the fabric reaches a threshold value, the distance adjusting assembly appropriately increases the distance between the two clamping assemblies so as to recover the tension degree of the fabric; in the embroidery process, the slack state of the fabric is monitored in real time through the monitoring assembly, and when it is monitored that the slack amplitude of the fabric reaches a threshold value, the distance adjusting assembly appropriately increases the distance between the two clamping assemblies to recover the tension degree of the fabric, so that the fabric always keeps a certain tension degree in the embroidery process, and real-time monitoring and dynamic adjustment are achieved; the embroidery efficiency of the fabric is improved, meanwhile, the risk of defective products caused by shutdown adjustment is avoided, and the final embroidery quality of the fabric is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of embroidery machines, in particular to a fabric tensioning mechanism of an embroidery machine and the embroidery machine. Background Art

[0002] In the fabric embroidery process, it is crucial to ensure the tension of the fabric during the embroidery process, which is not only related to the accuracy and clarity of the embroidery pattern, but also directly affects the final quality and appearance of the fabric.

[0003] In the prior art, the fabric is basically tightened and fixed by an embroidery frame before machine embroidery. This method can only keep the fabric at a certain tension at the beginning of embroidery. During the embroidery process, as the needle and thread continue to pierce and pull, the fabric will be subjected to complex and constantly changing external forces (these external forces not only come from the direct action of the needle and thread, but also include the reaction force generated by the material and texture of the fabric itself), resulting in relaxation. The existing embroidery frame lacks dynamic adjustment capability and cannot adjust its tension in real time according to the actual state of the fabric during the embroidery process. When the fabric becomes loose, the machine can only be stopped for adjustment, which not only reduces production efficiency but also increases the risk of defective products.

[0004] Therefore, the present invention provides a fabric tensioning mechanism of an embroidery machine and an embroidery machine to solve the above problems. Summary of the invention

[0005] The embodiment of the present invention aims to provide a fabric tensioning mechanism of an embroidery machine and an embroidery machine to solve the above-mentioned problem.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A fabric tensioning mechanism of an embroidery machine comprises a base part, two groups of clamping components arranged on the base part for clamping fabrics, and a long condition arranged on the embroidery machine body, the spacing between the two groups of clamping components is adjustable, a rotary shuttle component cooperating with the needle of the embroidery machine is arranged in the long condition, and also comprises a distance adjusting component for adjusting the spacing between the two groups of clamping components and a monitoring component for real-time monitoring the relaxation state of the fabric during fabric embroidery, when the monitoring component detects that the relaxation amplitude of the fabric reaches a threshold value, the distance adjusting component appropriately increases the spacing between the two groups of clamping components to restore the tension of the fabric.

[0008] In an optional solution: the clamping assembly includes a clamping piece and a plurality of telescopic pieces arranged on the clamping piece, the clamping piece is provided with a material discharge trough, and a pressing plate is provided in the material discharge trough, and the telescopic ends of the plurality of telescopic pieces are fixedly connected to the pressing plate.

[0009] In an optional solution: a static electricity generating plate is embedded in the bottom of the discharge trough.

[0010] In an optional solution: the base member is in the shape of a long frame, and the end of the clamping member away from the notch of the material discharge trough can be slidably clamped in the base member, and the distance adjustment component includes a bidirectional threaded rod rotatably arranged on the base member and a driving member for driving the bidirectional threaded rod to rotate, and the two rod sections of the bidirectional threaded rod with opposite thread directions are respectively threadedly matched to penetrate the clamping members in the two groups of clamping assemblies.

[0011] In an optional scheme: the monitoring component is composed of two groups of sensing components, and the two groups of sensing components are respectively arranged between the long condition and the two groups of clamping components. The sensing components include a plurality of light beam generators, light beam receivers and a mirror frame arranged on the long condition and arranged along the direction of the clamping member. The number of the light beam generators and light beam receivers is the same and their relative positions correspond vertically one to one. A first reflector and a second reflector are provided on the mirror frame. The mirror surface of the first reflector and the mirror surface of the second reflector are opposite to each other at 45°, and the first reflector and the light beam generator are arranged at the same height, and the second reflector and the light beam receiver are arranged at the same height.

[0012] An embroidery machine comprises a fabric tensioning mechanism of the embroidery machine described in any one of the above technical solutions.

[0013] Compared with the prior art, the embodiments of the present invention have the following beneficial effects:

[0014] During the embroidery process, the relaxation state of the fabric is monitored in real time through the monitoring component. When the relaxation amplitude of the fabric reaches the threshold, the distance adjusting component appropriately increases the distance between the two sets of clamping components to restore the tension of the fabric, so that the fabric always maintains a certain tension during the embroidery process. Real-time monitoring and dynamic adjustment are carried out without stopping the machine. While improving the fabric embroidery efficiency, it also avoids the risk of defective products due to shutdown adjustments, thereby ensuring the final embroidery quality of the fabric.

[0015] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings herein are incorporated into and constitute a part of the specification to illustrate embodiments consistent with the present application and are used together with the specification to explain the principles of the present application. At the same time, these drawings and text descriptions are not intended to limit the scope of the concept of the present application in any way, but to illustrate the concept of the present application for those skilled in the art by referring to specific embodiments.

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the arrangement between the base member, the elongated member and the two sets of clamping components in the present invention.

[0019] Figure 3 It is a top view (partial) between the long member and the rotary hook assembly of the present invention.

[0020] Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0021] Figure 5 for Figure 2 Enlarged view of point B in the middle.

[0022] Figure 6 It is a schematic diagram of the principle of the sensing component in the present invention.

[0023] Figure 7 It is a front view of an embroidery machine in the present invention.

[0024] Notes on the figure markings: 1-base part, 2-distance adjustment assembly, 201-driving part, 202-bidirectional threaded rod, 3-clamping part, 4-long condition, 5-rotating shuttle assembly, 6-telescopic part, 7-discharge trough, 8-pressing plate, 9-static electricity generating plate, 10-monitoring assembly, 1001-beam generator, 1002-beam receiver, 1003-mirror frame, 1004-first reflector, 1005-second reflector. DETAILED DESCRIPTION

[0025] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0026] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0027] See also Figure 1 to Figure 3A fabric tensioning mechanism of an embroidery machine comprises a base member 1, two groups of clamping components arranged on the base member 1 for clamping fabrics, and a long condition 4 arranged on the embroidery machine body, wherein the spacing between the two groups of clamping components is adjustable, and a rotary shuttle component 5 cooperating with the needle of the embroidery machine is arranged in the long condition 4, and further comprises a distance adjusting component 2 for adjusting the spacing between the two groups of clamping components and a monitoring component 10 for real-time monitoring of the relaxation state of the fabric during fabric embroidery. When the monitoring component 10 detects that the relaxation amplitude of the fabric reaches a threshold value, the distance adjusting component 2 appropriately increases the spacing between the two groups of clamping components to restore the tension of the fabric.

[0028] The base member 1 is connected to the embroidery frame driving mechanism of the embroidery machine. During embroidery operation, the base member 1 is driven by the embroidery frame driving mechanism to continuously move in the X and Y directions to perform the embroidery process.

[0029] First, the fabric is initially clamped by two groups of clamping components (the fabric embroidery area is located between the two groups of clamping components), and then the distance between the two groups of clamping components is increased by the distance adjusting component 2 to tighten the fabric, and then the embroidery operation is performed. During the embroidery process, the relaxation state of the fabric is monitored in real time by the monitoring component 10. When it is detected that the relaxation amplitude of the fabric reaches a threshold, the distance adjusting component 2 appropriately increases the distance between the two groups of clamping components to restore the tension of the fabric, so that the fabric always maintains a certain tension during the embroidery process, and real-time monitoring and dynamic adjustment are carried out without stopping the machine. While improving the efficiency of fabric embroidery, it also avoids the risk of defective products due to stoppage adjustment, thereby ensuring the final embroidery quality of the fabric.

[0030] It should be noted that the long condition 4 is similar to the shuttle case (or shuttle box) of the embroidery machine in the prior art, which is used to install the shuttle assembly 5 to cooperate with the needle to perform embroidery operations. The shuttle assembly 5 includes components such as the shuttle body, the shuttle bed, and the shuttle core, which are prior art. In addition, the control coordination between the monitoring component 10 and the distance adjustment component 2 is also an existing control technology, so it will not be repeated here.

[0031] See also Figure 1 , Figure 2 and Figure 4 In one embodiment of the present invention, the clamping assembly includes a clamping member 3 and a plurality of telescopic members 6 arranged on the clamping member 3 (the telescopic member 6 can be a hydraulic cylinder, a pneumatic cylinder, an electric telescopic rod, etc., as long as it can realize the telescopic function, it is not limited here), the clamping member 3 is provided with a material discharge trough 7, and the material discharge trough 7 is provided with a pressing plate 8, and the telescopic ends of the plurality of telescopic members 6 are fixedly connected to the pressing plate 8.

[0032] In this embodiment, the fabric is placed into the discharge trough 7 and flattened, and then the telescopic member 6 is extended to drive the pressing plate 8 to move toward the fabric until the fabric is pressed, thereby clamping and fixing the fabric.

[0033] Furthermore, in this embodiment, an electrostatic plate 9 is embedded in the bottom of the discharge trough 7. When the fabric is placed, the electrostatic generating plate 9 is energized to generate static electricity, thereby initially adsorbing and fixing the fabric to facilitate clamping the fabric.

[0034] See also Figure 1 In one embodiment of the present invention, the base member 1 is in the shape of a long frame, and the end of the clamping member 3 away from the notch of the material discharge trough 7 can be slidably clamped in the base member 1, and the distance adjustment component 2 includes a bidirectional threaded rod 202 rotatably arranged on the base member 1 and a driving member 201 for driving the bidirectional threaded rod 202 to rotate (the driving member 201 is a rotating device such as a motor and a reduction motor in the prior art, which is the prior art and will not be described here). The two rod sections of the bidirectional threaded rod 202 with opposite thread directions are respectively threadedly matched to penetrate the clamping members 3 in the two groups of clamping assemblies.

[0035] In this embodiment, the driving member 201 drives the bidirectional threaded rod 202 to rotate (forward or reverse) to adjust the distance between the two groups of clamping components, thereby achieving the tensioning and loosening of the fabric.

[0036] See also Figure 1 , Figure 2 , Figures 4 to 6 In one embodiment of the present invention, the monitoring component 10 is composed of two groups of sensing components, and the two groups of sensing components are respectively arranged between the long condition 4 and the two groups of clamping components. The sensing components include a plurality of light beam generators 1001 and a light beam receiver 1002 arranged along the direction of the clamping member 3, and a mirror frame 1003 arranged on the long condition 4. The light beam generators 1001 and the light beam receivers 1002 are the same in number and their relative positions correspond vertically one to one. A first reflector 1004 and a second reflector 1005 are arranged on the mirror frame 1003. The mirror surface of the first reflector 1004 and the mirror surface of the second reflector 1005 are opposite to each other at 45°, and the first reflector 1004 and the light beam generator 1001 are arranged at the same height, and the second reflector 1005 and the light beam receiver 1002 are arranged at the same height.

[0037] In this embodiment, when the fabric is embroidered, all the light beam generators 1001 and light beam receivers 1002 in the two sets of sensing components are started. When the fabric is in a tensioned state, there is no object blocking the light path between all the light beam generators 1001 and the first reflector 1004. The light beam emitted by the light beam generator 1001 can be received by the corresponding light beam receiver 1002 after being reflected by the first reflector 1004 and the second reflector 1005. When the fabric relaxes and falls, the fabric that falls to a certain extent will at least block a part of the light path between the light beam generator 1001 and the first reflector 1004, causing the corresponding light beam receiver 1002 to be unable to receive the light beam signal normally (such as Figure 6As shown, it should be noted here that no matter how the embroidery frame driving mechanism drives the base member 1 to move in the Y direction (front and back direction), the long condition 4 is in a state of fully supporting the fabric across, and under the premise of no object blocking, the light beams emitted by all the light beam generators 1001 in the two groups of sensing components can "touch" the first reflector 1004, that is, all the light beam receivers 1002 can receive the light beam signal). When any light beam receiver 1002 does not receive the light beam signal, it is determined that the fabric relaxation amplitude reaches the threshold, and the feedback signal is used to control the distance adjustment component 2 to appropriately increase the distance between the two groups of clamping components to restore the tension of the fabric, so as to realize real-time monitoring and dynamic adjustment of the fabric during the embroidery process, so that the fabric always maintains a certain tension.

[0038] See also Figure 7 The present invention also provides an embroidery machine, comprising a fabric tensioning mechanism of the embroidery machine described in any one of the above technical solutions.

[0039] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fabric tensioning mechanism for an embroidery machine, characterized in that: The invention comprises a base part (1), two groups of clamping components arranged on the base part (1) for clamping fabrics, and a long condition (4) arranged on the body of an embroidery machine, wherein the distance between the two groups of clamping components is adjustable, and a rotary shuttle component (5) cooperating with the needle of the embroidery machine is arranged in the long condition (4). The invention also comprises a distance adjustment component (2) for adjusting the distance between the two groups of clamping components, and a monitoring component (10) for real-time monitoring of the relaxation state of the fabric during fabric embroidery. When the monitoring component (10) detects that the relaxation amplitude of the fabric reaches a threshold value, the distance adjustment component (2) appropriately increases the distance between the two groups of clamping components to restore the tension of the fabric.

2. The fabric tensioning mechanism of the embroidery machine according to claim 1, characterized in that: The clamping assembly comprises a material clamping member (3) and a plurality of telescopic members (6) arranged on the material clamping member (3); the material clamping member (3) is provided with a material discharge trough (7), and a pressing plate (8) is provided in the material discharge trough (7); the telescopic ends of the plurality of telescopic members (6) are fixedly connected to the pressing plate (8).

3. The fabric tensioning mechanism of the embroidery machine according to claim 2, characterized in that: A static electricity generating plate (9) is embedded in the bottom of the discharge trough (7).

4. The fabric tensioning mechanism of the embroidery machine according to claim 2, characterized in that: The base member (1) is in the shape of a long frame, and one end of the clamping member (3) away from the notch of the material discharge trough (7) can be slidably clamped in the base member (1). The distance adjustment component (2) comprises a bidirectional threaded rod (202) rotatably arranged on the base member (1) and a driving member (201) for driving the bidirectional threaded rod (202) to rotate. The two rod sections of the bidirectional threaded rod (202) with opposite thread directions are respectively threadedly matched to penetrate the clamping members (3) in the two groups of clamping assemblies.

5. The fabric tensioning mechanism of the embroidery machine according to claim 2, characterized in that: The monitoring component (10) is composed of two groups of sensing components, and the two groups of sensing components are respectively arranged between the long condition (4) and the two groups of clamping components. The sensing components include a plurality of light beam generators (1001) arranged along the direction of the clamping member (3), a light beam receiver (1002), and a mirror frame (1003) arranged on the long condition (4). The light beam generators (1001) and the light beam receivers (1002) are the same in number and their relative positions are vertically corresponding to each other. A first reflector (1004) and a second reflector (1005) are arranged on the mirror frame (1003). The mirror surface of the first reflector (1004) and the mirror surface of the second reflector (1005) are opposite to each other at 45 degrees, and the first reflector (1004) and the light beam generator (1001) are arranged at the same height, and the second reflector (1005) and the light beam receiver (1002) are arranged at the same height.

6. An embroidery machine, characterized in that: The invention comprises a fabric tensioning mechanism of an embroidery machine as described in any one of claims 1 to 5.

Images