Adjustable sheet feeding structure

Abstract

The utility model provides an adjustable sheet feeding structure which comprises a sheet stirring rod and a sheet stirring driving connecting rod for driving sheet stirring of the sheet stirring rod, a pin shaft is arranged at the joint of the sheet stirring rod and the sheet stirring driving connecting rod, the pin shaft is rotatably arranged on the sheet stirring driving connecting rod, and a fixing structure for positioning the rotation angle of the pin shaft is arranged on the sheet stirring driving connecting rod. The elastic force of the elastic body is changed by rotating the pin shaft and adjusting the position of the other end of the elastic body, so that the elastic arm of the elastic body applies force to the plectrum rod relatively accurately, the fixing structure is arranged to fix the rotating position of the pin shaft on the plectrum driving connecting rod, and the purpose of adjusting the driving pressure of the plectrum rod is achieved. According to the structure, the elastic force can be adjusted according to actual requirements, so that the driving force of the plectrum rod is more reasonable, and the position of a sequin hole is more accurate. The structure provided by the utility model can be used for single sequin, laminated sequin and plectrum of multiple sequins.

Description

Technical Field

[0001] The utility model relates to the technical field of embroidery machines, in particular to an adjustable sheet feeding structure. Background Art

[0002] The paddle structure of an existing gold sheet feeding device includes a paddle lever for paddles, a paddle drive connecting rod that drives the paddle lever to move, and a spring that drives and presses the paddle lever between the paddle drive connecting rod and the paddle lever. When paddles are paddled, the swinging paddle drive connecting rod drives the paddle lever to paddle, and the spring drives and presses the paddle lever to press the paddle lever, allowing the paddle head to quickly engage with the sheet hole in the gold sheet, thereby accurately feeding the sheet. After long periods of high-speed paddles and repeated driving, the spring force of the spring used for pressing will change, and the spring driving pressure will also change. This will cause the paddle head of the paddle lever to be unable to quickly engage with the gold sheet, resulting in inaccurate feeding position and affecting the feeding effect.

[0003] In addition, when the pick conveys gold sheets of different thicknesses, the elastic force of the same pick spring cannot adapt well to gold sheets of different thicknesses. Summary of the Invention

[0004] In order to solve the above problems of the prior art, the utility model provides an adjustable film feeding structure, which can adjust the elastic force of the spring according to actual conditions to make the film feeding more accurate.

[0005] The technical solutions adopted are as follows:

[0006] An adjustable film feeding structure includes a paddle rod and a paddle driving connecting rod that drives the paddle rod paddle. A pin is provided at the connection between the paddle rod and the paddle driving connecting rod. The paddle rod is rotatably connected to the pin. The pin is also provided with an elastic body for adjusting the pressure of the paddle rod. As an improvement, one end of the elastic body is provided with an elastic arm that drives the paddle rod, and the other end of the elastic body is connected to the pin. The pin can be rotatably set on the paddle driving connecting rod, and the paddle driving connecting rod is provided with a fixed structure for positioning the rotation angle of the pin.

[0007] Furthermore, the elastic body is a torsion spring installed on the pin.

[0008] Furthermore, the pin shaft is provided with an adjusting knob which can rotate the pin shaft, and the other end of the elastic body is connected to the adjusting knob.

[0009] Furthermore, the elastic arm is provided with a hook or a mounting hole that matches the paddle lever.

[0010] Furthermore, the paddle lever is provided with a connecting shaft that cooperates with the hook or the mounting hole.

[0011] Furthermore, the adjusting knob is arranged on a pin shaft located at one end of the paddle rod, and the adjusting knob is fixedly connected to the pin shaft.

[0012] Furthermore, the adjusting knob is provided with a mounting groove for accommodating the end of the elastic body.

[0013] Furthermore, the fixing structure includes a fixing bolt provided on the paddle drive connecting rod and capable of tightening the pin shaft, and the paddle drive connecting rod is provided with a screw hole for the fixing bolt to extend into.

[0014] Compared with the prior art, the beneficial effects produced by the present invention are:

[0015] The utility model provides an adjustable film feeding structure, in which a pin is rotatably mounted on a paddle drive connecting rod. A fixing structure is provided on the paddle drive connecting rod to determine the rotation angle of the pin. By rotating the pin, the position of the other end of the elastic body is adjusted, thereby changing the elastic force of the elastic body, so that the elastic arm of the elastic body can apply force to the paddle lever with relative accuracy. A fixing structure is provided to fix the rotation position of the pin on the paddle drive connecting rod, thereby achieving the purpose of adjusting the driving force of the paddle lever. The utility model structure can adjust the elastic force according to actual needs, making the driving force of the paddle lever more reasonable and the positioning of the gold sheet hole more precise. The utility model structure can be used for single gold sheet, stacked gold sheet, and multi-gold sheet paddles. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 、 3 This is a side structural diagram of the utility model;

[0018] Among them, the paddle rod 1, the paddle driving connecting rod 2, the elastic body 3, the elastic arm 4, the adjustment knob 5, the pin 6, the hook or the mounting hole 8, the connecting shaft 9, the mounting groove 10, and the screw hole 11. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to specific embodiments.

[0020] refer to Figure 1 、 2 3. An adjustable film feeding structure, comprising a paddle rod 1 and a paddle driving connecting rod 2 for driving the paddle of the paddle rod. A pin shaft 6 is provided at the connection between the paddle rod 1 and the paddle driving connecting rod 2. The paddle rod is rotatably connected to the pin shaft 6. The pin shaft 6 is also provided with an elastic body 3 for adjusting the pressure of the paddle rod. One end of the elastic body 3 is provided with an elastic arm 4 for driving the paddle rod, and the other end of the elastic body is connected to the pin shaft 6. The pin shaft can be rotatably set on the paddle driving connecting rod 2, and the paddle driving connecting rod 2 is provided with a fixing structure for positioning the rotation angle of the pin shaft 6.

[0021] The elastic body 3 can be rotated into an appropriate structure according to the existing technical structure. In this embodiment, as a preferred embodiment, the elastic body 3 is a torsion spring installed on the pin 6.

[0022] In order to facilitate adjustment, an adjusting knob 5 which can rotate the pin 6 is provided on the pin 6 , and the other end of the elastic body is connected to the adjusting knob 5 .

[0023] The paddle drive link 2 is usually driven directly by a drive motor or indirectly through a transmission link. The drive motor drives the paddle drive link 2 to swing. Since one end of the paddle rod 1 is pin-connected to the paddle drive link 2, the paddle rod 1 can swing with the paddle drive link 2 and, under the action of the elastic body 3, can quickly cooperate with the conveyed gold sheet to perform the sheet feeding and reset actions.

[0024] The elastic force of the elastic body 3 is determined by the degree of deformation of the torsion spring. With one end of the elastic body fixed, the greater the angle of twist at the other end, the greater the elastic deformation and the resulting elastic force. However, due to high-speed paddles, the elastic body is repeatedly driven, and the elastic force can change. In the prior art, one end of the elastic body is fixed, and the elastic force cannot be adjusted.

[0025] The present invention has an adjustment knob 5 mounted on a rotating pin 6, one end of an elastic body being inserted into the adjustment knob 5. The adjustment knob is provided with a mounting slot 10 for accommodating the end of the elastic body. Rotating the adjustment knob 5 adjusts the torsion angle at both ends of the elastic body, thereby adjusting the elastic force. The elastic force of the elastic body can be adjusted according to actual needs, making the position of the paddle lever paddle and the feeding of the piece more precise and faster.

[0026] The elastic arm is provided with a hook or mounting hole 8 that mates with the plectrum lever. The hook or mounting hole 8 allows the elastic arm 4 to engage with the plectrum lever 1. Swinging of the plectrum lever 1 drives the elastic arm 4, which in turn causes the elastic arm 4 to deform the elastic body, generating a driving force that drives the plectrum lever to press the gold sheet plectrum. Preferably, the plectrum lever 1 is provided with a connecting shaft 9 that mates with the hook or mounting hole. The elastic arm 4 can be driven directly by the plectrum lever or connected via the connecting shaft 9.

[0027] The fixing structure includes a fixing bolt (not shown) provided on the paddle drive link 2 and capable of tightening the pin 6. The paddle drive link 2 is provided with a screw hole 11 for the fixing bolt to extend into.

[0028] The adjustment knob 5 is located on one end of the paddle lever 1 and is fixedly connected to the pin. Rotating the adjustment knob 5 also rotates the pin. When the pin 6 is secured by the fixing structure, the adjustment knob 5 is also fixed and no longer rotates. The elastic force of the elastic body can be adjusted by rotating the adjustment knob 5, and the fixing structure then secures the position of the adjustment knob.

[0029] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by utilizing the contents of the present invention specification and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An adjustable film feeding structure, comprising a paddle lever (1), a paddle driving connecting rod (2) for driving a paddle of the paddle lever, a pin (6) being provided at the connection between the paddle lever (1) and the paddle driving connecting rod (2), the paddle lever being rotatably connected to the pin (6), an elastic body (3) for adjusting the pressure of the paddle lever being further provided on the pin (6), and characterized in that: One end of the elastic body (3) is provided with an elastic arm (4) for driving the paddle lever, and the other end of the elastic body is connected to a pin shaft (6). The pin shaft (6) is rotatably arranged on the paddle driving connecting rod (2), and a fixing structure for positioning the rotation angle of the pin shaft (6) is provided on the paddle driving connecting rod (2).

2. The adjustable film feeding structure according to claim 1, characterized in that: The elastic body (3) is a torsion spring mounted on the pin (6).

3. The adjustable film feeding structure according to claim 1, characterized in that: The pin shaft (6) is provided with an adjusting knob (5) capable of rotating the pin shaft, and the other end of the elastic body is connected to the adjusting knob (5).

4. The adjustable film feeding structure according to claim 1, characterized in that: The elastic arm is provided with a hook or a mounting hole (8) that matches the paddle lever.

5. The adjustable film feeding structure according to claim 4, characterized in that: The paddle lever (1) is provided with a connecting shaft (9) that cooperates with the hook or the mounting hole.

6. The adjustable film feeding structure according to claim 3, characterized in that: The adjusting knob (5) is arranged on one end of the pin shaft (6) located on the paddle rod (1), and the adjusting knob (5) is fixedly connected to the pin shaft (6).

7. The adjustable film feeding structure according to claim 3, characterized in that: The adjusting knob (5) is provided with a mounting groove (10) for accommodating the end of the elastic body.

8. The adjustable film feeding structure according to claim 1, characterized in that: The fixing structure includes a fixing bolt provided on the paddle drive connecting rod (2) and capable of tightening the pin shaft (6), and a screw hole (11) for the fixing bolt to extend into is provided on the paddle drive connecting rod (2).

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