Bead feeding mechanism capable of clamping and feeding various embroidery beads

Abstract

The utility model discloses a bead feeding mechanism capable of clamping and feeding various embroidery beads, which comprises a base and a bead pulley, and the bead feeding pulley is provided with an elastic bead feeding clamp capable of advancing to a bead embroidering position or retreating to a bead receiving position under the driving of the bead feeding pulley. The front end of the elastic bead feeding clamp is provided with a jaw which can be folded or unfolded under the combined action of friction force between the bead feeding pulley and the base and friction force between the elastic bead feeding clamp and the base, the bead feeding mechanism capable of clamping and feeding various embroidery beads further comprises a bead guide block, and the bead guide block is located above the elastic bead feeding clamp and hinged to the base. A front bead guide hole and a rear bead guide hole are formed in the bead guide block, the base is provided with a driving mechanism which drives the bead guide block to rotate with the hinge point as the axis so as to switch the positions of the front bead guide hole and the rear bead guide hole, and when the elastic bead feeding clamp retreats to the bead receiving position, the jaw is opened and aligned with the front bead guide hole or the rear bead guide hole. And a bead blocking plate is arranged between the bead guide block and the elastic bead feeding clamp. The utility model has the advantages of simple structure, smaller stroke, higher speed and better stability.

Description

Technical Field

[0001] The utility model relates to a bead embroidery machine, in particular to a bead feeding mechanism which can clamp and feed multiple kinds of embroidery beads. Background Art

[0002] The bead feeding mechanism is an important part of the bead embroidery device, which is used to transport the embroidery beads to the bottom of the embroidery needle so that the embroidery needle can embroider the embroidery beads onto the fabric. The existing bead feeding mechanism can usually only clamp and feed embroidery beads of one color / specification, which can no longer meet the requirements of actual production.

[0003] At present, there are bead feeding mechanisms that can clamp and feed two embroidery beads of different specifications. For example: Chinese patent with authorization announcement number CN215757957U and authorization announcement date of February 8, 2022 discloses an embroidery machine head with long and short double beads, including a base, a frame, a toggle mechanism, an elastic bead clamping plate, a bead guide block, a sliding pad, a mounting frame and a side shift drive mechanism. The frame is fixed to one side of the base, and an open slide groove is provided on the base. The elastic bead clamping plate is located in the open slide groove and can move back and forth along the open slide groove to feed beads under the drive of the toggle mechanism. The side shift drive mechanism is fixed on the frame, and the mounting frame is connected to the side shift drive mechanism and can move left and right under the drive of the side shift drive mechanism. A notch is provided at the front end of the open slide groove, and the sliding pad is located in the notch. The sliding pad is fixedly connected to the mounting frame through a connecting block. The bead guide block is located above the elastic bead clamping plate and is fixedly connected to the mounting frame. A long bead hole and a short bead hole are provided on the bead guide block, and the short bead hole is located directly above the sliding pad. The bead feeding mechanism drives the mounting frame through the lateral drive mechanism to drive the bead guide block to move horizontally left and right to achieve the switching and clamping of different embroidery beads. It has the following defects: (1) The overall structure is complex; (2) The moving stroke of the bead guide block is large and the switching speed is slow; (3) The bead guide block is easy to shake and has poor stability. Utility Model Content

[0004] The utility model aims to solve the above problems existing in the bead feeding mechanism of the prior art and provides a bead feeding mechanism which has a simple structure, a smaller stroke, a faster speed and better stability and can clamp and feed a variety of embroidery beads.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a bead feeding mechanism of the utility model that can clamp and feed multiple embroidery beads comprises a base and a bead feeding pulley slidably arranged in the base, the bead feeding pulley is provided with an elastic bead feeding clamp that can advance to the embroidery bead position or retreat to the bead receiving position under the drive of the bead feeding pulley, the front end of the elastic bead feeding clamp is provided with a jaw that can be closed or opened under the joint action of the friction force between the bead feeding pulley and the elastic bead feeding clamp and the base, the bead feeding mechanism that can clamp and feed multiple embroidery beads also comprises a bead guide block, the bead guide block is located above the elastic bead feeding clamp and is hinged on the base, the bead guide block is provided with a front bead guide hole and a rear bead guide hole, the base is provided with a driving mechanism that drives the bead guide block to rotate with the hinge point as the axis to switch the positions of the front bead guide hole and the rear bead guide hole, when the elastic bead feeding clamp retreats to the bead receiving position, the jaw opens and aligns with the front bead guide hole or the rear bead guide hole, and a bead blocking plate is provided between the bead guide block and the elastic bead feeding clamp. The bead feeding pulley, elastic bead feeding clamp and the matching method thereof in the utility model are all prior arts; the bead guide block in the utility model can rotate with the hinge point as the axis under the action of the driving mechanism, so as to switch the positions of the leading bead hole and the rear bead guide hole to realize bead changing, and the bead guide block realizes the position switching of the leading bead hole and the rear bead guide hole (realizing bead changing) by rotation, and has a simple structure, a smaller stroke, a faster speed and better stability; when the elastic bead feeding clamp retreats to the bead receiving position, the jaws open and align with the rear bead guide hole, at which time the leading bead hole switches to one side and is blocked by the bead blocking plate, so as to prevent the embroidery beads in the leading bead hole from falling and interfering with the elastic bead feeding clamp.

[0006] Preferably, a limit groove is provided on the bottom surface of the front end of the base, a limit sliding block is provided in the limit groove and can move forward and backward along the limit groove under the drive of a driving mechanism, a slide groove connected to the limit groove is provided on the top surface of the front end of the base, a step pad is provided in the slide groove and can slide along the slide groove, and the step pad is fixedly connected to the limit sliding block as a whole. By cooperating with the limiting groove and the limiting slider to limit the rotation angle of the bead guide block, accurate positioning of the front bead guide hole and the rear bead guide hole is achieved, so that the front bead guide hole and the rear bead guide hole can be aligned with the jaws; the step pad moves synchronously with the rotation of the bead guide block, and when the front bead guide hole is aligned with the jaws, the higher surface of the step pad is located below the jaws, and the embroidery beads can be supported by the higher surface of the step pad after falling into the jaws. At this time, the front bead hole is used for the transportation of short beads; when the rear bead guide hole is aligned with the jaws, the lower surface of the step pad is located below the jaws, and the embroidery beads can be supported by the lower surface of the step pad after falling into the jaws. At this time, the front bead hole is suitable for the transportation of long beads; through this design, the utility model can be suitable for the switching and transportation of long and short beads.

[0007] Preferably, the driving mechanism includes a motor, a linear guide slider module and a driving block, a motor seat is provided on the base, the motor and the linear guide slider module are fixed on the motor seat, a shift fork is fixed on the output shaft of the motor, the shift fork is connected to the slider of the linear guide slider module by shifting, the limit slider, the driving block and the slider of the linear guide slider module are fixedly connected as a whole, a driving pin is provided on the driving block, a driving groove is provided on the bottom surface of the guide bead block, and the driving pin is adapted to the driving groove.

[0008] Preferably, a connecting plate is fixed on the slider of the linear guide slider module, the shift fork is movably connected to the connecting plate, and the limit slider, the driving block and the connecting plate are fixedly connected as a whole.

[0009] Preferably, a connecting block is fixedly connected to the connecting plate, the limiting slider is fixedly connected to the connecting block as a whole, and the driving block is fixedly connected to the limiting slider.

[0010] Preferably, a mounting block is fixed on the base, the mounting block is located between the bead retaining plate and the bead guiding block, and the bead guiding block is hinged to the mounting block via a hinge pin.

[0011] Preferably, the bead retaining plate is fixedly connected to the base.

[0012] Therefore, the utility model has the following beneficial effects: the bead guide block can realize the position switching of the front bead guide hole and the rear bead guide hole by rotating under the action of the driving mechanism, with a simple structure, a smaller stroke, a faster speed and better stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a stereogram of the utility model.

[0014] Figure 2 yes Figure 1 Exploded diagram of .

[0015] Figure 3 It is a connection diagram of the base, bead feeding slide, bead guide block, step pad, bead stopper plate, mounting block and connecting block.

[0016] Figure 4 yes Figure 3 Exploded diagram of .

[0017] Figure 5 It is a three-dimensional picture of the guide bead block.

[0018] Figure 6 It is a schematic diagram of the structure when the rear bead guide hole is aligned with the jaws.

[0019] Figure 7 It is a schematic diagram of the structure when the leading bead hole is aligned with the jaws.

[0020] In the figure: base 1, bead feeding pulley 2, elastic bead feeding clamp 3, jaws 4, bead guide block 5, front bead guide hole 6, rear bead guide hole 7, bead blocking plate 8, limit groove 9, limit slider 10, slide groove 11, step pad 12, motor 13, linear guide slider module 14, drive block 15, motor seat 16, shift fork 17, drive pin 18, drive slide groove 19, connecting plate 20, connecting block 21, mounting block 22, hinge pin 23. DETAILED DESCRIPTION

[0021] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figure 1 , Figure 2 The bead feeding mechanism shown in the figure can clamp and feed a variety of embroidery beads, comprising a base 1, a bead feeding pulley 2 and a bead guide block 5 slidably arranged in the base, the bead feeding pulley is equipped with an elastic bead feeding clamp 3 which can move forward to the embroidery bead position or retreat to the bead receiving position under the drive of the bead feeding pulley, the front end of the elastic bead feeding clamp is provided with a jaw 4 which can be closed or opened under the joint action of the friction between the bead feeding pulley and the elastic bead feeding clamp and the base, a mounting block 22 and a bead blocking plate 8 are fixed on the base, the bead blocking plate is located above the mounting block, and the mounting block is hinged with a bead guide block 5 (such as Figure 3 , Figure 4 As shown in the figure, the bead guide block is provided with a front bead guide hole 6 and a rear bead guide hole 7, and the base is provided with a driving mechanism for driving the bead guide block to rotate with the hinge point as the axis to switch the position of the front bead guide hole and the rear bead guide hole. When the elastic bead feeding clamp retreats to the bead receiving position, the jaws are opened and aligned with the front bead guide hole or the rear bead guide hole. A limiting groove 9 is provided on the bottom surface of the front end of the base, and a limiting slider 10 is provided in the limiting groove and can move forward and backward along the limiting groove under the drive of the driving mechanism. A slide groove 11 connected to the limiting groove is provided on the top surface of the front end of the base, and a step pad 12 that can slide along the slide groove is provided in the slide groove, and the step pad and the limiting slide The block is fixedly connected as a whole, the driving mechanism includes a motor 13, a linear guide slider module 14 and a driving block 15, a motor seat 16 is provided on the base, the motor and the linear guide slider module are fixed on the motor seat, a shift fork 17 is fixed on the output shaft of the motor, a connecting plate 20 is fixed on the slider of the linear guide slider module, the shift fork is connected to the connecting plate by shifting, a connecting block 21 is fixedly connected to the connecting plate, the limit slider is fixedly connected to the connecting block as a whole, the driving block is fixedly connected to the limit slider, a driving pin 18 is provided on the driving block, and a driving groove 19 (such as Figure 5 As shown in the figure), the drive pin is matched with the drive slot.

[0023] The operating principle of the utility model is: (1) conveying long beads (such as Figure 6As shown in the figure): The elastic bead feeding clamp retreats to the bead receiving position under the drive of the bead feeding pulley, and the jaws open and align with the rear bead guide hole (the front bead guide hole is located on one side and blocked by the bead blocking plate). The long bead in the rear bead guide hole falls into the jaws and is supported by the lower surface of the step pad. The elastic bead feeding clamp is driven forward by the bead feeding pulley, and the jaws close to clamp the long bead (middle) until the elastic bead feeding clamp advances to the embroidery bead position. When the long bead is embroidered on the fabric by the embroidery needle, the elastic bead feeding clamp retreats under the drive of the bead feeding pulley, and the jaws gradually open to the maximum and retreat to the bead receiving position. The previous steps are repeated to complete the bead receiving and feeding process; (2) Delivery of short beads (such as Figure 7 As shown in the figure): Under the action of the motor, the connecting block moves forward to push the driving block and the limit slider, and the driving pin moves the bead guide block to rotate until the front bead hole turns to the position of the original rear bead hole, and the step pad moves forward synchronously until the higher surface of the step pad is located below the front bead hole. When the elastic bead feeding clamp retreats to the bead receiving position driven by the bead feeding pulley, the jaws open and align with the front bead hole (the rear bead hole is located on the rear side and blocked by the elastic bead feeding clamp), the short bead in the front bead hole falls into the jaws and is caught by the step pad. The higher surface of the block is supported, and the elastic bead feeding clamp is driven forward by the bead feeding pulley, and the jaws are closed to clamp the short bead (middle) until the elastic bead feeding clamp moves forward to the embroidery bead position. When the short bead is embroidered on the fabric by the embroidery needle, the elastic bead feeding clamp retreats under the drive of the bead feeding pulley, and the jaws gradually open to the maximum, retreat to the bead receiving position, and the previous steps are repeated to complete the bead receiving and feeding process; when it is necessary to switch to conveying long beads, under the action of the motor, the connecting block moves backward to pull the driving block and the limit slider to make the bead guide block rotate in the opposite direction.

[0024] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A bead feeding mechanism capable of clamping and feeding a plurality of embroidery beads, comprising a base (1) and a bead feeding pulley (2) slidably arranged in the base, the bead feeding pulley being provided with an elastic bead feeding clamp (3) which can move forward to an embroidery bead position or move backward to a bead receiving position under the drive of the bead feeding pulley, the front end of the elastic bead feeding clamp being provided with a jaw (4) which can be closed or opened under the combined action of the friction force between the bead feeding pulley and the elastic bead feeding clamp and the base, characterized in that: The bead feeding mechanism capable of clamping and feeding a variety of embroidery beads also includes a bead guide block (5), the bead guide block is located above the elastic bead feeding clamp and is hinged on the base, the bead guide block is provided with a front bead guide hole (6) and a rear bead guide hole (7), the base is provided with a driving mechanism for driving the bead guide block to rotate with the hinge point as the axis so as to switch the position of the front bead guide hole and the rear bead guide hole, when the elastic bead feeding clamp retreats to the bead receiving position, the jaws open and align with the front bead guide hole or the rear bead guide hole, and a bead blocking plate (8) is provided between the bead guide block and the elastic bead feeding clamp.

2. A bead feeding mechanism capable of clamping and feeding multiple embroidery beads according to claim 1, characterized in that: A limit groove (9) is provided on the bottom surface of the front end of the base, a limit slide block (10) is provided in the limit groove and can move forward and backward along the limit groove under the drive of a driving mechanism, a slide groove (11) is provided on the top surface of the front end of the base and is connected to the limit groove, a step pad (12) is provided in the slide groove and can slide along the slide groove, and the step pad is fixedly connected to the limit slide block as a whole.

3. A bead feeding mechanism capable of clamping and feeding multiple embroidery beads according to claim 2, characterized in that: The driving mechanism comprises a motor (13), a linear guide slider module (14) and a driving block (15); a motor seat (16) is provided on the base; the motor and the linear guide slider module are both fixed on the motor seat; a shift fork (17) is fixed on the output shaft of the motor; the shift fork is movably connected to a slider of the linear guide slider module; the limit slider, the driving block and the slider of the linear guide slider module are fixedly connected as a whole; a driving pin (18) is provided on the driving block; a driving groove (19) is provided on the bottom surface of the guide bead block; the driving pin is adapted to fit the driving groove.

4. The bead feeding mechanism capable of clamping and feeding multiple embroidery beads according to claim 3, characterized in that: A connecting plate (20) is fixed on the slider of the linear guide slider module, the shift fork is movably connected to the connecting plate, and the limit slider, the driving block and the connecting plate are fixedly connected as a whole.

5. The bead feeding mechanism capable of clamping and feeding multiple embroidery beads according to claim 4, characterized in that: A connecting block (21) is fixedly connected to the connecting plate, the limiting slider and the connecting block are fixedly connected as a whole, and the driving block is fixedly connected to the limiting slider.

6. The bead feeding mechanism capable of clamping and feeding multiple embroidery beads according to claim 1, characterized in that: A mounting block (22) is fixed on the base, the mounting block is located between the bead retaining plate and the bead guiding block, and the bead guiding block is hinged on the mounting block via a hinge pin (23).

7. The bead feeding mechanism capable of clamping and feeding multiple embroidery beads according to claim 1, characterized in that: The bead retaining plate is fixedly connected to the base.

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