Tape pressing mechanism of taping embroidery tape reel and taping embroidery machine head

Abstract

The utility model discloses a taping embroidery tape reel and pressing mechanism and a taping embroidery machine head, and belongs to the technical field of taping embroidery machines, the taping embroidery tape reel and pressing mechanism comprises an overturning piece, a tape pressing piece and an elastic piece, and the overturning piece is hinged to a tape reel support; the belt pressing piece is connected with the overturning piece, and the belt pressing piece is provided with a belt pressing part which is pressed on the coiled material belt in the material storage groove; the elastic piece is connected between the overturning piece and the tape reel support and drives the overturning piece to drive the tape pressing piece to rotate, so that the tape pressing part is elastically pressed on the coiled material tape in the storage tank. The tape pressing mechanism of the tape reel can prevent the material tape from loosening and guarantee normal conveying of the material tape.

Description

Technical field

[0001] The utility model belongs to the technical field of embroidery equipment, in particular to a coiling embroidery machine. [Background Technology]

[0002] The tape embroidery machine head currently on the market has a tape reel bracket mounted on an M-axis assembly, and the tape reel is detachably mounted on the reel bracket to facilitate reel replacement. A rotating shaft is provided in the center of the reel, and both ends of the rotating shaft are mounted on the reel bracket. The prior art discloses many structures of tape embroidery devices. A Chinese invention patent application with reference publication number CN113584749 A discloses a tape embroidery device and a tape embroidery control method. The device includes a machine housing, a needle bar, a presser foot, and a material tray. The needle bar is sequentially covered with a presser foot sleeve, a fixing sleeve, and a shaft sleeve. The fixing sleeve is fixed to the machine housing. The presser foot includes a presser foot mounting member connected to the presser foot sleeve and a presser foot rotation drive mechanism. The material tray includes a material tray frame and a material tray drive mechanism. The material tray drive mechanism drives the shaft sleeve to rotate, thereby driving the material tray frame to rotate. The presser foot rotation drive mechanism drives the presser foot sleeve to rotate, thereby driving the presser foot mounting member to rotate. It can be seen from the drawings of the patent application text that the material tape roll in the storage tank is freely set. Although there is no resistance to the output of the material tape, it is easy to cause the material tape to become loose, and in severe cases, the material tape may become entangled. [Utility Model Content]

[0003] In view of the deficiencies in the existing technology, the technical problem to be solved by the present invention is to provide a tape coiling and pressing mechanism and a tape coiling and embroidery machine head to solve the problem that the material tape is loosely wound, causing the material tape to be entangled and affecting the normal transportation of the material tape.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] First, a tape reel and tape pressing mechanism is provided. The tape reel is installed on a tape reel bracket. The tape reel is provided with a storage groove for storing a tape roll around the circumference. The tape reel and tape pressing mechanism include:

[0006] A turning member, the turning member being hingedly mounted on the reel bracket;

[0007] A belt pressing member connected to the flip member, the belt pressing member having a belt pressing portion pressed onto the belt roll in the material storage tank;

[0008] The elastic member is connected between the flip member and the tape reel bracket, and drives the flip member to drive the tape pressing member to rotate, so that the tape pressing part is elastically pressed onto the tape roll in the material storage tank.

[0009] Preferably, the flip member is provided with an axial hole portion, the axial hole portion is connected to the flap shaft, and the end portion of the flap shaft passes through the axial hole portion and is rotatably supported on the reel bracket.

[0010] Preferably, the elastic member is a torsion spring having a first leg and a second leg, and the first leg and the second leg are connected to the flip member and the reel bracket respectively.

[0011] Preferably, the tape reel pressing mechanism further includes a tension adjusting wheel for adjusting the deformation of the torsion spring to adjust the pressing force of the tape pressing member.

[0012] Preferably, the tension-adjusting wheel is threadedly connected to the reel bracket; and / or, the outer circle of the tension-adjusting wheel is provided with an outer gear ring.

[0013] Preferably, the reel bracket includes second support arms arranged side by side on both sides of the reel axial direction, and both ends of the flap shaft are correspondingly rotatably supported by the second support arms on both sides.

[0014] Preferably, the belt pressing member is a belt pressing plate, and the belt pressing portion is arranged at the front of the belt pressing plate and located inside the material storage trough.

[0015] Preferably, lugs are provided on both sides of the rear portion of the belt pressing plate, and the lugs are connected to the flip member.

[0016] Preferably, a notch is provided in the middle of the rear portion of the belt pressing plate.

[0017] Secondly, a tape embroidery machine head is provided, which includes the tape reel and tape pressing mechanism.

[0018] The technical solution adopted by the utility model has the following beneficial effects: the belt pressing part of the belt pressing member is elastically pressed onto the material belt roll in the material storage slot, which does not affect the normal rotation of the belt reel, so that the material belt can be stably output during the embroidery process; at the same time, damping is provided to the material belt roll, and even if the belt reel rotates, the material belt on the outer ring of the material belt roll remains stable due to the elastic pressing effect, avoiding the material belt from becoming loose, causing the material belt to be entangled, and affecting the normal transportation of the material belt.

[0019] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings.

Brief Description of the Drawings

[0020] The utility model is further described below with reference to the accompanying drawings:

[0021] Figure 1 It is a structural diagram of a tape reeling device for embroidery;

[0022] Figure 2 yes Figure 1 A in the middle is an enlarged structural diagram;

[0023] Figure 3 yes Figure 1 The enlarged structural diagram at B in the middle;

[0024] Figure 4 It is a schematic diagram of the structure of the brush assembly;

[0025] Reference numerals: reel device 100, reel bracket 10, first support arm 101, shaft mounting groove 1011, second support arm 102, angle sensor 103, reel locking mechanism 11, locking member 111, guide groove 1111, locking inclined surface 1112, guide pressure plate 112, transmission pin 113, transmission rod 114, controlled portion 1141, transmission portion 1142, fulcrum pin 1143, waist-shaped groove 1144, bearing pin 1145, transmission bearing 114 6. Reel pressing mechanism 12, belt pressing member 121, belt pressing portion 1211, notch 1212, lug 1213, flip member 122, connecting portion 1221, shaft hole portion 1222, cam portion 1223, flap shaft 123, tension adjusting wheel 124, outer gear ring 1241, reel 13, rotating shaft 131, material storage trough 132, brush assembly 14, electric ring inner cylinder 141, electric ring 142, keyway 143, brush holder 144, arc groove 145, contact rod 146. [Specific implementation method]

[0026] The following is an explanation and description of the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention, but the following embodiments are only preferred embodiments of the present invention and are not exhaustive. Based on the embodiments in the embodiments, other embodiments obtained by those skilled in the art without creative work are all within the scope of protection of the present invention.

[0027] Those skilled in the art will appreciate that, unless there is any conflict, the features in the following embodiments and implementations may be combined with each other.

[0028] The terms used in this utility model are for the purpose of describing specific embodiments only and are not intended to limit the utility model. For example, the terms "upper," "lower," "inner," and "outer" used below to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are used only to facilitate the description of the utility model and simplify the description. They do not indicate or imply that the device or element referred to must have a specific orientation or be constructed or operated in a specific orientation. Therefore, they should not be understood as limiting the utility model.

[0029] In this utility model, unless otherwise specified or limited, the terms "installation," "connection," "fixation," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0030] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0031] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features.

[0032] Reference Figures 1 to 4 As shown, this embodiment provides a tape reel device 100 for tape embroidery, including a reel bracket 10, the reel bracket 10 is provided with at least two reel mounting positions for installing a reel 13 along the circumference. The figure shows that two reels 13 are installed. Of course, each reel bracket can also be provided with a reel mounting position, and multiple reel brackets can be combined. Among them, a rotating shaft 131 is provided at the center of the reel 13, and a material storage trough 132 for storing a tape roll is provided around the circumference of the reel 13. The discharge tape roll is not shown in the figure here. In the prior art, after the reel 13 is installed in the reel mounting position of the reel bracket 10, there is still a possibility of movement due to the lack of additional restrictions, resulting in unstable installation of the reel and easy loosening. In order to solve the problem of unstable installation of the reel and easy loosening, a reel locking mechanism 11 is provided at the corresponding reel mounting position, and the reel locking mechanism 11 fixes the reel 13 to the reel mounting position.

[0033] In some embodiments, the reel locking mechanism 11 includes:

[0034] The shaft mounting groove 1011, two of the shaft mounting grooves 1011 are arranged side by side on the reel bracket 10, and the shaft mounting groove 1011 has an opening, and both ends of the rotating shaft 131 are respectively supported in the two shaft mounting grooves.

[0035] The rotating shaft 131 enters and exits the shaft installation slot through the opening, which facilitates the installation, removal and replacement of the reel.

[0036] The locking member 111 is used to lock the opening and restrict the rotating shaft 131 in the shaft installation groove 1011 .

[0037] Due to the restriction of the locking member on the rotating shaft, the rotating shaft can be prevented from moving in the shaft installation groove during operation, and the reel is installed stably and is not easy to loosen.

[0038] In order to facilitate the operation of the locking member, the locking member 111 is connected to a slide rail structure, and the slide rail structure guides the locking member 111 to move to lock or open the opening.

[0039] Specifically, the locking member 111 may be a locking rod, ie, a long rod-shaped structure, the locking rod being provided with a guide slot 1111, and the slide rail structure comprising a guide pin connected to the guide slot 1111. Of course, it is understandable that the locking member may also be of other shapes.

[0040] Furthermore, the slide rail structure also includes a guide pressure plate 112. The guide groove 1111 is provided between the guide pressure plate 112 and the reel support 10. The guide pin movably passes through the guide groove 1111, with one end connected to the reel support and the other end connected to the guide pressure plate 112. The guide groove 1111 is limited on both sides by the guide pressure plate 112 and the reel support and guided by the guide pin. Therefore, the locking rod can only move linearly, that is, move away from the shaft mounting slot opening or move toward the shaft mounting slot opening to lock or open the opening. Of course, it is understood that the slide rail structure can also be replaced with other conventional structures.

[0041] Specifically, the reel bracket 10 is provided with two first support arms 101 arranged side by side on both axial sides of the reel 13, and an axis mounting groove 1011 cooperating with the rotating shaft 131 is provided at the end of the first support arm 101. The axis mounting groove 1011 can adopt a U-shaped structure, having a bottom wall, a first side and a second side. The rotating shaft 131 is supported on the bottom wall, and the two sides are limited by the first side and the second side, and the height of the first side is higher than the second side. Since the first support arm extends obliquely downward, the axis mounting groove is provided at the obliquely downward part of the first support arm, and the first side is located at the obliquely upward side of the first support arm, and the height formed is higher than the second side, which facilitates the installation and disassembly of the reel, because the rotating shaft can easily enter the axis mounting groove from the opening and can also be easily dislodged. In addition, the locking rod is located on the outside of the first support arm, and the inclination angle is consistent with that of the first support arm.

[0042] Furthermore, the reel locking mechanism 11 also includes a transmission rod 114 hinged to the reel bracket. The transmission rod 114 has a controlled portion 1141 and a transmission portion 1142 on opposite sides of the hinge fulcrum. The transmission portion 1142 is connected to the locking member 111. When the controlled portion is controlled, the transmission rod rotates about the hinge fulcrum, thereby causing the transmission portion to drive the locking member to move. In addition, the transmission portion 1142 is provided with a waist-shaped groove 1144. The tail end of the locking member is connected to a transmission pin 113, which cooperates with the waist-shaped groove 1144. Because the guide pin cooperates with the guide groove 1111, the locking member can only move linearly. Because the transmission pin 113 cooperates with the waist-shaped groove 1144, the transmission pin 113 can move along the waist-shaped groove. In this way, the rotation of the transmission rod 114 can be converted into the linear movement of the transmission pin 113, which then drives the locking member 111 to move linearly.

[0043] The controlled portion 1141 and the transmission portion 1142 form a roughly V-shaped angle. A fulcrum pin 1143 is connected to the transmission rod at the corresponding hinge point (i.e., where the controlled portion 1141 and the transmission portion 1142 meet). Furthermore, a return torsion spring is connected to the fulcrum pin 1143, which connects the transmission rod and the reel bracket. Therefore, when the controlled portion is released from control, the return torsion spring drives the transmission rod to rotate and reset. Simultaneously, the rotation of the transmission rod resets the locking member, closing the opening.

[0044] Furthermore, the head of the locking member 111 is provided with a locking bevel 1112 that presses against the shaft when the opening is locked. The head of the locking member 111 not only closes the opening of the shaft mounting slot, but also secures the shaft with the locking bevel 1112. This ensures that even if the shaft diameter changes, the locking bevel 1112 can still securely press the shaft, providing the advantage of reliable fixation.

[0045] The tape roll is circumferentially arranged around the material storage slot 132. During tape embroidery, the tape is pulled from the roll. In the prior art, the tape roll is not limited, which can easily cause the tape to loosen, affecting the stable conveyance of the tape. Therefore, a tape reel pressing mechanism 12 can be provided to press the outer ring of the tape roll to prevent the tape from loosening.

[0046] In some embodiments, the reel pressing mechanism 12 includes:

[0047] A flip member 122, wherein the flip member 122 is hingedly mounted on the reel bracket 10;

[0048] The belt pressing member 121 is connected to the flip member 122 and is provided with a belt pressing portion 1211 that is pressed onto the belt roll in the material storage tank;

[0049] The elastic member is connected between the flip member and the tape reel bracket, and drives the flip member to drive the tape pressing member to rotate, so that the tape pressing part is elastically pressed onto the tape roll in the material storage tank.

[0050] The tape reel pressing mechanism 12 has a tape pressing portion 121 that elastically presses against the tape roll in the hopper, ensuring normal tape output without affecting the normal rotation of the reel. This also provides damping for the tape roll. Even when the reel rotates, the elastic pressure maintains the tape on the outer ring of the roll, thus preventing the tape from loosening.

[0051] Specifically, the flip member 122 has an axial hole 1222 connected to the flap shaft 123. The end of the flap shaft passes through the axial hole and is rotatably supported by the reel support. Therefore, the rotating shaft is fixed to the axial hole, and the flip member and the tape pressing member rotate synchronously with the rotating shaft. The elastic member is a tension torsion spring having a first leg and a second leg, which are respectively connected to the flip member and the reel support.

[0052] Furthermore, the reel hold-down mechanism 12 includes a tension adjustment wheel 124 for adjusting the deformation of the tension torsion spring, thereby adjusting the holding force of the tape hold member. The tension adjustment wheel is threadedly connected to the reel bracket and includes a tension adjustment portion connected to the tension torsion spring. The outer circumference of the tension adjustment wheel is provided with an external gear ring 1241 to facilitate rotation of the tension adjustment wheel. The specific structure and adjustment principle can also be referenced in the prior art.

[0053] Specifically, the reel support 10 includes second support arms 102 arranged side by side on both sides of the reel axis, and the two ends of the flap shaft 123 are correspondingly supported by the second support arms 102 on both sides. The belt pressing member 121 is a belt pressing plate. The belt pressing portion is arranged at the front of the belt pressing plate and located inside the material storage tank. Its width basically covers the outer ring of the material roll, but there is a gap between it and the second support arms 102 on both sides, so it can move freely and press the material on the outer ring of the material roll. Lugs 1213 are provided on both sides of the rear part of the belt pressing plate. The lugs 1213 are connected to the flip member 122, and the flip member is provided with a connecting portion 1221 connected to the lugs. A notch 1212 is provided in the middle of the rear part of the belt pressing plate.

[0054] When replacing the tape reel, the tape pressure plate must be flipped outward to release the force between the tape pressure member and the tape roll. At the same time, the tape reel locking mechanism 11 must also be unlocked so that the rotating shaft can be removed from the opening of the shaft mounting slot. Both actions are indispensable. If they are performed separately, two people are required to cooperate. Here, for the convenience of operation, the two actions can be linked, that is, the action of flipping the tape pressure plate outward can simultaneously drive the transmission rod 114. A linkage structure is provided between the transmission rod 114 and the flip member 122. Specifically, the transmission rod 114 is provided with a transmission bearing 1146. The transmission bearing 1146 is located on one side of the controlled portion 1141 and is installed on the bearing pin 1145. The flip member 122 is provided with a cam portion 1223. The cam portion and the connecting portion 1221 are spaced apart on the circumferential outside of the shaft hole portion 1222. The cam surface of the cam portion 1223 and the transmission bearing 1146 act in a positive direction to drive the flip member 122 to rotate. Thus, when replacing the tape reel, the tape hold plate is tilted outward, and the linkage structure between the transmission rod 114 and the tilting member 122 can drive the locking member to operate, thereby unlocking the tape reel locking mechanism 11. After the tape reel is replaced, the external force is released, and the tilting member 122 and the tape hold plate return to their original positions under the action of the tension torsion spring. The cam surface of the cam portion 1223 and the transmission bearing 1146 act in opposite directions. Simultaneously, the return torsion spring causes the transmission rod 114 to drive the locking member back to its original position, and the tape reel locking mechanism 11 is also locked. This eliminates the need to operate the tape reel hold mechanism and the tape reel locking mechanism separately.

[0055] In addition, in the prior art, manual inspection is performed to determine whether the remaining material on the tape reel is sufficient. In some embodiments, a tape reel remaining material detection mechanism may be provided. For example, the tape reel remaining material detection mechanism includes an angle sensor 103. As described above, a tape pressure plate or a similar tape pressure member is used to compress the tape reel within the material storage trough and rotates a corresponding angle when the remaining material on the tape reel changes. Therefore, the angle sensor 103 is used to detect the rotation angle of the tape pressure plate to obtain the remaining material data of the tape reel based on the rotation angle of the tape pressure plate.

[0056] As the remaining material on the reel decreases, the outer diameter of the entire reel decreases, and the pressure plate rotates closer to the center of the reel, causing the angle of the pressure plate to change. In this way, the angle sensor can detect the rotation angle of the pressure plate and obtain the remaining material data of the reel based on the rotation angle of the pressure plate. This is not only more intuitive but also more accurate.

[0057] Specifically, the angle sensor 103 is mounted on the second support arm 102, and can specifically detect the rotation angle of the shaft hole portion 1222. Of course, if the shaft hole portion is fixed to the flap shaft and rotates synchronously, the rotation angle of the flap shaft can also be detected.

[0058] Since the angle sensor requires power to operate, it must always have a stable power supply. The reel bracket is mounted on the M-axis and rotates with it, making it difficult to directly lead wires from the reel bracket. Therefore, a brush assembly 14 connected to the M-axis is installed on the reel bracket to provide power to the angle sensor.

[0059] Referring to the structure of brushes in the prior art, the brush assembly 14 includes a brush holder 144 and an electric ring inner cylinder 141. The electric ring inner cylinder 141 is mounted on the M-axis. The brush holder 144 is located radially outward of the electric ring inner cylinder. The electric ring inner cylinder 141 is connected to the angle sensor 103, and the brush holder provides contact power to the electric ring inner cylinder. Specifically, the electric ring inner cylinder is provided with an electric ring 142. The brush holder 144 is provided with an arcuate groove 145 facing the electric ring inner cylinder, corresponding to the outer circular shape of the electric ring inner cylinder. The arcuate groove is provided with a contact rod 146, which contacts and conducts electricity with the electric ring 142. In addition, since the electric ring inner cylinder 141 rotates with the M-axis, it is provided with a keyway 143 and is connected to the M-axis via a key.

[0060] It can be understood that, in this embodiment, part of the structure of the tape reel device is described, and other structures can refer to the existing technology.

[0061] It can be understood that the tape reel device in this embodiment is applied to a tape embroidery machine, specifically provided on a tape embroidery machine head. Other structures of the tape embroidery machine head and the tape embroidery machine can refer to the prior art.

[0062] The above description is merely a specific embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Those skilled in the art will understand that the utility model includes, but is not limited to, the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the utility model are intended to be included within the scope of the claims.

Claims

1. A tape reel and tape pressing mechanism for embroidery tape, wherein the tape reel is mounted on a reel bracket, and the tape reel is provided with a storage groove for storing the tape roll around the circumference, characterized in that: The reel pressing mechanism comprises: A turning member, the turning member being hingedly mounted on the reel bracket; A belt pressing member connected to the flip member, the belt pressing member having a belt pressing portion pressed onto the belt roll in the material storage tank; The elastic member is connected between the flip member and the tape reel bracket, and drives the flip member to drive the tape pressing member to rotate, so that the tape pressing part is elastically pressed onto the tape roll in the material storage tank.

2. The tape coiling and pressing mechanism for embroidery tape according to claim 1, characterized in that: The flip member is provided with an axial hole portion, the axial hole portion is connected to the flap shaft, and the end portion of the flap shaft passes through the axial hole portion and is rotatably supported on the reel bracket.

3. The tape coiling and pressing mechanism for embroidery tape according to claim 2, characterized in that: The elastic member is a torsion spring having a first support leg and a second support leg. The first support leg and the second support leg are connected to the turning member and the reel bracket respectively.

4. The tape coiling and pressing mechanism for embroidery tape according to claim 3, characterized in that: The tape reel pressing mechanism further comprises a tension adjusting wheel for adjusting the deformation of the torsion spring so as to adjust the pressing force of the tape pressing member.

5. The tape coiling and pressing mechanism for embroidery tape according to claim 4, characterized in that: The tension adjustment wheel is threadedly connected to the reel bracket; and / or, the outer circle of the tension adjustment wheel is provided with an outer gear ring.

6. The tape coiling and pressing mechanism for embroidery tape according to claim 2, characterized in that: The reel bracket includes second support arms arranged side by side on both sides of the reel axial direction, and both ends of the flap shaft are correspondingly rotatably supported by the second support arms on both sides.

7. The tape coiling and pressing mechanism for embroidery tape according to claim 1, characterized in that: The belt pressing member is a belt pressing plate, and the belt pressing portion is arranged at the front of the belt pressing plate and located inside the material storage tank.

8. The tape coiling and pressing mechanism for embroidery tape according to claim 7, characterized in that: Lugs are provided on both sides of the rear portion of the belt pressing plate, and the lugs are connected to the turning piece.

9. The tape coiling and pressing mechanism for embroidery tape according to claim 7, characterized in that: A notch is provided in the middle of the rear portion of the belt pressing plate.

10. A tape embroidery machine head, characterized in that: The invention comprises the reel pressing mechanism according to any one of claims 1 to 9.

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