Pinhole plate and template machine

Abstract

The utility model discloses a needle hole plate and template machine relates to sewing technical field, and the needle hole plate includes the needle hole plate body for being connected with the needle plate of template machine, the first boss of setting in the needle hole plate body top and the second boss of setting in the first boss top, the first boss is equipped with the first through -hole that passes through the needle hole plate body and is spaced with the second boss, and the first through -hole is used for the needle of template machine to wear and set to sew the cloth, and the second boss is used for supporting the cloth after being sewed by needle, and the side of second boss close to the first through -hole is equipped with the guide inclined plane, and the bottom of guide inclined plane is connected in the top plane of first boss, is used for guiding the cloth from first through -hole place and moves to the top of second boss, and the first groove is equipped with in guide inclined plane, and the top plane of first boss is equipped with the second groove that is communicated with first groove and first through -hole. Through the position of second boss that cloth has completed sewing is lifted, can avoid the problem that the bottom line is too tight and leads to the inward shrinkage of cloth.

Description

Technical Field

[0001] This utility model relates to the field of sewing technology, and in particular to a perforated plate and template machine. Background Technology

[0002] Currently, template sewing machines on the market generally have poor flatness after sewing. The existing technology to solve the problem of poor flatness is to attach horsehair interfacing to the template. When sewing, the horsehair interfacing provides some support for the seam when sewing the fabric, which increases the amount of surface thread and forms thread loops. The thread loops will tighten when the fabric is filled with down later. The horsehair interfacing has a certain effect on the flatness of the fabric.

[0003] However, the solution did not significantly improve the bottom thread. After detaching from the template, the bottom thread did not form a loop, resulting in the overall thread tension being too tight. Based on the investigation of the root cause of unevenness after sewing, it was found that the main reason was that after the fabric (such as the inner fabric) was needled, the yarns that make up the fabric shifted, and the excessive tightness of the bottom thread caused the fabric to wrinkle inward, resulting in unevenness.

[0004] Therefore, how to avoid the problem of fabric wrinkling inward due to excessively tight bottom thread is a technical problem that needs to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a perforated plate and template machine that can avoid the problem of fabric wrinkling inward due to excessively tight bobbin thread.

[0006] To achieve the above objectives, this utility model provides a perforated plate, comprising a perforated plate body for connecting with a needle plate of a template machine, a first protrusion disposed on the top of the perforated plate body, and a second protrusion disposed on the top of the first protrusion. The first protrusion has a first through hole that passes through the perforated plate body and is spaced apart from the second protrusion. The first through hole is used for the needle of the template machine to pass through for sewing fabric. The second protrusion is used to support the fabric after it has been sewn by the needle. A guide slope is provided on the side of the second protrusion near the first through hole. The bottom of the guide slope is connected to the top plane of the first protrusion and is used to guide the fabric from the first through hole to the top of the second protrusion. The guide slope has a first groove. The top plane of the first protrusion has a second groove that connects the first groove and the first through hole. The first groove and the second groove are used to form a clearance space to avoid the bottom thread sewn onto the fabric.

[0007] In one possible implementation, the top plane of the pinhole plate body, the top plane of the first boss, and the top plane of the second boss are parallel to each other.

[0008] In one possible implementation, the axis of the first through hole is perpendicular to the top plane of the first boss.

[0009] In one possible implementation, the angle between the guide ramp and the top plane of the first boss is 120° to 170°.

[0010] In one possible implementation, the distance between the bottom of the first groove and the top plane of the second boss in the direction of the first through hole axis is equal to the distance between the bottom of the second groove and the top plane of the second boss in the direction of the first through hole axis.

[0011] In one possible implementation, the connection between the guide ramp and the top plane of the first boss is smoothly provided, and the connection between the guide ramp and the top plane of the second boss is smoothly provided.

[0012] In one possible implementation, the cross-sectional dimension of the first boss perpendicular to the axis of the first through hole gradually decreases in the direction away from the body of the pinhole plate.

[0013] In one possible implementation, the cross-sectional dimension of the second boss perpendicular to the axis of the first through hole gradually decreases in the direction away from the first boss.

[0014] In one possible implementation, the pinhole plate body has at least two mounting holes, and the mounting holes are symmetrically arranged about the center of the pinhole plate body.

[0015] Based on the above, this application also provides a template machine, including a needle and a pinhole plate of any of the above.

[0016] Compared with the prior art, the technical solution provided by this utility model has at least the following beneficial effects: After the fabric is supported by the first boss at the first through hole and sewn, it moves towards the second boss under the guidance of the guide slope. The guide slope has a first groove, and the top plane of the first boss has a second groove connecting the first groove and the first through hole to form a clearance space, avoiding sewing to the bottom edge of the fabric during the fabric movement. The direction of fabric movement is opposite to the direction of sewing. During the sewing process, the previous position to be sewn on the fabric is at the first through hole. After being sewn, as the fabric moves toward and is supported by the second protrusion, the next position on the fabric to be sewn awaits needle sewing at the first through hole. The second protrusion lifts the already sewn position of the fabric, enhancing the fabric's strength and preventing insufficient bobbin thread due to fabric deformation during the take-up process. This increases the bobbin thread amount, reducing the bobbin thread tension for the same length of seam, thus reducing the degree of inward shrinkage of the fabric and improving its flatness. This design avoids the problem of fabric shrinkage due to excessively tight bobbin thread. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the pinhole plate provided in an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the pinhole plate provided in an embodiment of the present invention from another perspective.

[0020] Figure 3 This is a cross-sectional view of the pinhole plate provided in an embodiment of the present invention.

[0021] in:

[0022] 100 - Pinhole plate body, 110 - Mounting hole;

[0023] 200 - First boss, 210 - First through hole, 220 - Second groove;

[0024] 300 - Second boss, 310 - Guide slope, 320 - First groove. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] In the description of this utility model, it should be understood that the terms "upper", "lower", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the position or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations of this utility model.

[0028] The purpose of this invention is to provide a perforated plate and template machine that can avoid the problem of fabric wrinkling inward due to excessively tight bobbin thread.

[0029] Please see Figures 1 to 3 To achieve the above objectives, this utility model provides a perforated plate, including a perforated plate body 100 for connecting to the needle plate of a template machine, a first boss 200 disposed on the top of the perforated plate body 100, and a second boss 300 disposed on the top of the first boss 200. The first boss 200 has a first through hole 210 that passes through the perforated plate body 100 and is spaced apart from the second boss 300. The first through hole 210 is used for the needle of the template machine to pass through for sewing fabric. The second boss 300 is used to support the fabric after it has been sewn by the needle. A guide slope 310 is provided on the side of the platform 300 near the first through hole 210. The bottom of the guide slope 310 is connected to the top plane of the first boss 200. It is used to guide the fabric from the first through hole 210 to the top of the second boss 300. The guide slope 310 has a first groove 320. The top plane of the first boss 200 has a second groove 220 that connects the first groove 320 and the first through hole 210. The first groove 320 and the second groove 220 are used to form a clearance space to avoid the bottom thread sewn onto the fabric.

[0030] The pinhole plate body 100 has at least two mounting holes 110, which are symmetrically arranged about the center of the pinhole plate body 100. The pin plate has fixing holes corresponding to the mounting holes 110. By means of connectors passing through the corresponding mounting holes 110 and fixing holes, the pinhole plate body 100 is assembled onto the pin plate, and then installed together with the pin plate onto the lower rotating device of the template machine. The lower rotating device can drive the pin plate and the pinhole plate body 100 to rotate. In this embodiment, it is preferable to have four mounting holes 110, which are symmetrically arranged about the center of the pinhole plate body 100. This helps to ensure that the mounting holes 110 are subjected to uniform force and avoid local stress concentration caused by eccentric load. The connectors can be, but are not limited to, screws or pins.

[0031] It should be noted that when the needle pierces the fabric along the axial direction of the first through hole 210, the circumferential wall of the first through hole 210 can support the fabric, that is, the first boss 200 supports the fabric, which can prevent the fabric from collapsing and causing defects such as skipped stitches, greatly improving work efficiency. The positions to be sewn on the fabric can be divided into the previous position and the next position according to the sewing sequence. After the previous position is sewn, the next position is sewn. The position of the previous position waiting to be sewn at the first through hole 210 is the same as the position of the next position waiting to be sewn at the first through hole 210. The direction of the first through hole 210 toward the second boss 300 is the direction of fabric movement, and the direction of the second boss 300 toward the first through hole 210 is the direction of sewing advance.

[0032] After the fabric is supported by the first boss 200 at the first through hole 210 and sewn, it moves towards the second boss 300 under the guidance of the guide slope 310. The guide slope 310 has a first groove 320, and the top plane of the first boss 200 has a second groove 220 connecting the first groove 320 and the first through hole 210 to form a clearance space to avoid sewing to the bottom edge of the fabric during the fabric movement. The direction of fabric movement is opposite to the direction of sewing. During the sewing process, after the previous position to be sewn on the fabric is sewn at the first through hole 210, When the fabric moves toward the second protrusion 300 and is supported by the second protrusion 300, the next position on the fabric to be sewn is waiting for the needle to sew at the first through hole 210. The second protrusion 300 lifts the position of the fabric that has been sewn, which enhances the strength of the fabric and prevents the fabric from deforming during the take-up process, resulting in insufficient bottom thread. This increases the amount of bottom thread and reduces the tension of the bottom thread in the same length of seam, thereby reducing the degree of inward shrinkage of the fabric and improving the flatness of the fabric. This setting can avoid the problem of the fabric shrinking inward due to the bottom thread being too tight.

[0033] In one possible implementation, the top plane of the perforated plate body 100, the top plane of the first boss 200, and the top plane of the second boss 300 are parallel to each other. When the perforated plate body 100 is in a horizontal state, the top planes of the perforated plate body 100, the first boss 200, and the second boss 300 are all in a horizontal state, and the height of the top plane of the first boss 200 is higher than the height of the top plane of the perforated plate body 100, and the height of the top plane of the second boss 300 is higher than the height of the top plane of the first boss 200. The first boss 200 can lift the fabric to enhance its strength, and the second boss 300 can lift the fabric after it has been sewn by a needle to further enhance its strength. The top plane of the second boss 300 should have a certain area to improve the support effect on the fabric. The axis of the first through hole 210 is perpendicular to the top plane of the first boss 200, so that when the top plane of the first boss 200 is horizontal, the axis of the first through hole 210 extends along the height direction, allowing the needle to move up and down along the axis of the first through hole 210. The top plane of the needle plate body 100 and the top plane of the second boss 300 are both perpendicular to the axis of the first through hole 210. The thickness of the second boss 300 on the axis of the first through hole 210 can be set to 1.0-1.5 times the thickness of the first boss 200 on the axis of the first through hole 210, which can effectively reduce the thread tension of the bottom thread and improve the flatness of the fabric.

[0034] The top plane of the second protrusion 300 should have a certain width in the fabric movement direction, such that the top plane of the second protrusion 300 includes a proximal end that is closer to the first through hole 210 and a distal end that is farther from the first through hole 210. When the next sewing position of the fabric moves to the first through hole 210, the previous sewing position of the fabric can move to between the proximal and distal ends of the shim, providing a certain degree of flexibility. The distance between the previous and next sewing positions is the stitch length. The stitch length can be set according to actual needs. In some special application scenarios, a smaller stitch length is required. In this case, even if the previous sewing position cannot move directly to the top plane of the second protrusion 300 in a single movement after being sewn by the needle, the second protrusion 300 can still enhance the strength of the fabric by lifting the fabric adjacent to the previous sewing position, preventing insufficient bottom thread due to fabric deformation during the take-up process.

[0035] In one possible implementation, the angle between the guide ramp 310 and the top plane of the first boss 200 is 120° to 170°. The guide ramp 310 is set at an obtuse angle to the top plane of the first boss 200. When the top plane of the first boss 200 is horizontal, the guide ramp 310 is inclined relative to the horizontal and vertical directions to guide the fabric on the top plane of the first boss 200 to the top plane of the higher second boss 300. The angle between the guide ramp 310 and the top plane of the first boss 200 can be set to be larger so that the guide ramp 310 has a gentler slope to reduce the obstruction to the movement of the fabric.

[0036] In one possible implementation, the first groove 320 and the second groove 220 have a certain depth, and the bottoms of the first groove 320 and the second groove 220 are at the same height. That is, the distance between the bottom of the first groove 320 and the top plane of the second boss 300 in the direction of the axis of the first through hole 210 is equal to the distance between the bottom of the second groove 220 and the top plane of the second boss 300 in the direction of the axis of the first through hole 210. The edges of the first groove 320, the second groove 220, and the first through hole 210 are all smoothly designed to effectively reduce wear between the sewing thread and the first groove 320, the second groove 220, and the first through hole 210. The first groove 320 is located at the middle position in the width direction of the guide slope 310. Similarly, the second groove 220 and the first through hole 210 are located at the middle position in the width direction of the first boss 200. The widths of the first groove 320, the second groove 220, and the first through hole 210 are the same. During the sewing process, even if the thread is twisted into a ball when taking it up, it can pass through the first through hole 210, the second groove 220, and the first groove 320 more smoothly, preventing the generation of slip points. At the same time, the second groove 220 and the first groove 320 can form a clearance space for the bottom thread entering them.

[0037] In one possible implementation, the connection between the guide ramp 310 and the top plane of the first boss 200 is smoothly provided to reduce the resistance of the fabric moving from the top plane of the first boss 200 to the guide ramp 310. The connection between the guide ramp 310 and the top plane of the second boss 300 is also smoothly provided to reduce the resistance of the fabric moving from the guide ramp 310 to the top plane of the first boss 200.

[0038] The top plane of the second boss 300 can be configured as a semi-circular surface, which includes an arc-shaped edge and a straight edge. The straight edge is used to connect with the top of the guide slope 310. The cross-sectional dimension of the second boss 300 perpendicular to the axis of the first through hole 210 gradually decreases in the direction away from the first boss 200, and the bottom cross-sectional dimension of the second boss 300 is larger than the top cross-sectional dimension of the second boss 300. The second boss 300 also includes a first arc-shaped side surface that connects to the arc-shaped edge and both sides of the guide slope 310. The cross-sectional dimension of the first boss 200 perpendicular to the axis of the first through hole 210 gradually decreases in the direction away from the pinhole plate body 100, and the bottom cross-sectional dimension of the first boss 200 is larger than the top cross-sectional dimension of the first boss 200. The first protrusion 200 also includes a second arc-shaped side surface connected to the top plane of the pinhole plate body 100. The top of the second arc-shaped side surface is connected to the top plane of the first arc-shaped side surface and the first protrusion 200. The first arc-shaped side surface and the second arc-shaped side surface have the same slope relative to the side of the pinhole plate body 100 away from the pin plate, which makes the first protrusion 200 and the second protrusion 300 easy to process while preventing the template from being stuck by the first protrusion 200 and the second protrusion 300 when moving. The specific slope of the first arc-shaped side surface and the second arc-shaped side surface relative to the side of the pinhole plate body 100 away from the pin plate can be set according to actual needs and is not specifically limited here.

[0039] Based on the foregoing, this application also provides a template machine, including a needle and a pinhole plate as described above. The template machine further includes a machine head and a needle plate, with the needle disposed on the machine head. The needle plate and pinhole plate cooperate with the needle to complete the sewing work. This template machine also has all the beneficial effects of the pinhole plate. Other parts of the template machine can be referred to in the prior art, and will not be elaborated here.

[0040] It should be noted that in this specification, relational terms such as first and second are used only to distinguish one entity from several other entities, and do not necessarily require or imply any such actual relationship or order between these entities.

[0041] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0042] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principles of this utility model, and these improvements and modifications also fall within the protection scope of this utility model.

Claims

1. A pinhole plate, characterized in that, The device includes a needle plate body (100) for connecting to the needle plate of a template machine, a first boss (200) disposed on the top of the needle plate body (100), and a second boss (300) disposed on the top of the first boss (200). The first boss (200) has a first through hole (210) that passes through the needle plate body (100) and is spaced apart from the second boss (300). The first through hole (210) is used for the needle of the template machine to pass through and sew the fabric. The second boss (300) is used to support the fabric after it has been sewn by the needle. The second boss (300) has a guide slope (310) on the side near the first through hole (210). The bottom of the guide slope (310) is connected to the... The top plane of the first boss (200) is used to guide the fabric from the first through hole (210) to the top of the second boss (300). The guide slope (310) is provided with a first groove (320), and the top plane of the first boss (200) is provided with a second groove (220). The first groove (320) and the second groove (220) are respectively located on the guide slope (310) and the top plane of the first boss (200). The second groove (220) is connected to the first groove (320) and the first through hole (210). The first groove (320) and the second groove (220) are used to form a clearance space to avoid the bottom thread sewn to the fabric. The top plane of the pinhole plate body (100), the top plane of the first boss (200), and the top plane of the second boss (300) are parallel to each other. The axis of the first through hole (210) is perpendicular to the top plane of the first boss (200); The angle between the guide ramp (310) and the top plane of the first boss (200) is 120°~170°; The distance between the bottom of the first groove (320) and the top plane of the second boss (300) in the axial direction of the first through hole (210) is equal to the distance between the bottom of the second groove (220) and the top plane of the second boss (300) in the axial direction of the first through hole (210); The connection between the guide slope (310) and the top plane of the first boss (200) is smoothly provided, and the connection between the guide slope (310) and the top plane of the second boss (300) is also smoothly provided. The edges of the first groove (320), the second groove (220), and the first through hole (210) are all smoothly arranged. The first groove (320) is located at the middle position in the width direction of the guide slope (310). The second groove (220) and the first through hole (210) are located at the middle position in the width direction of the first boss (200). The widths of the first groove (320), the second groove (220), and the first through hole (210) are the same. The pinhole plate body (100) is provided with four mounting holes (110), and the four mounting holes (110) are symmetrically arranged about the center of the pinhole plate body (100).

2. The pinhole plate according to claim 1, characterized in that, The cross-sectional dimension of the first boss (200) perpendicular to the axis of the first through hole (210) gradually decreases in the direction away from the pinhole plate body (100).

3. The pinhole plate according to claim 1 or 2, characterized in that, The cross-sectional dimension of the second boss (300) perpendicular to the axis of the first through hole (210) gradually decreases in the direction away from the first boss (200).

4. A template machine, characterized in that, Includes a needle and a pinhole plate as described in any one of claims 1-3.

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