Pinhole plate and template machine
By designing the first protrusion and shim structure of the perforated plate on the template machine, the problem of fabric shrinkage caused by excessively tight bobbin thread was solved, the flatness and strength of the fabric were improved, skipped stitches were avoided, and sewing efficiency was increased.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BULLMER ELECTROMECHANICAL TECH
- Filing Date
- 2025-06-11
- Publication Date
- 2026-06-23
Smart Images
Figure CN224395211U_ABST
Abstract
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 pinhole plate, comprising:
[0007] The pin plate body is used to connect with the pin plate of the template machine;
[0008] The first boss protrudes along the first direction from the side of the pinhole plate body away from the pin plate, and the first boss is used to support the fabric located on the side of the first boss away from the pinhole plate body.
[0009] The first through hole extends through the needle plate body and the first boss in the first direction. The first through hole is used for the needle of the template machine to pass through, so as to sew the position to be sewn in the fabric located at the first through hole.
[0010] The shim block protrudes along the first direction from the side of the first boss away from the needle plate body. The shim block is used to support the fabric that has been sewn by the needle and moved to the side of the shim block away from the first boss.
[0011] When the previous sewing position moves to the side of the raised block away from the first boss after being sewn by the machine needle, the next sewing position moves into the first through hole.
[0012] In one possible implementation, the first boss includes a first side surface connected to the side of the pinhole plate body away from the pinhole plate, and the shim block is located at one end of the first boss in a second direction. The shim block includes a second side surface away from the first through hole and connected to the first side surface. The first side surface and the second side surface have the same slope relative to the side of the pinhole plate body away from the pinhole plate, and the first direction and the second direction are perpendicular.
[0013] In one possible implementation, the shim block further includes a guide surface facing the first through hole and connected to the second side surface, wherein the angle between the guide surface and the side of the first boss away from the pinhole plate body is greater than 90 degrees.
[0014] In one possible implementation, the cross-sectional dimension of the first boss perpendicular to the first direction gradually decreases in the direction away from the needle plate.
[0015] In one possible implementation, the cross-sectional dimension of the shim block perpendicular to the first direction gradually decreases in the direction away from the first boss.
[0016] In one possible implementation, a first groove is provided on the side of the first boss away from the pinhole plate body. The first groove is connected to the first through hole and is located between the first through hole and the shim block.
[0017] In one possible implementation, the length direction of the first groove is parallel to the second direction.
[0018] In one possible implementation, the maximum width of the first groove in the third direction is less than the maximum width of the first through hole in the third direction, and the third direction is perpendicular to the first direction and the second direction.
[0019] In one possible implementation, the pinhole plate body has two mounting holes, and the two mounting holes are symmetrically arranged about the axis of the pinhole plate body.
[0020] A template machine comprising a pinhole plate as described in any of the above.
[0021] Compared to the aforementioned background technology, the pinhole plate provided by this utility model includes a pinhole plate body, a first boss, a first through hole, and a shim block. The pinhole plate body is used to connect with the needle plate of a template machine. The first boss protrudes from the first plate body on the side away from the needle plate along a first direction, and is used to support the fabric located on the side of the first boss away from the pinhole plate body. The first through hole penetrates the pinhole plate body and the first boss along a first direction, and is used for the needle of the template machine to pass through, so as to sew the position to be sewn in the fabric located at the first through hole. The shim block protrudes from the first boss on the side away from the pinhole plate body along a first direction, and is used to support the fabric after being sewn by the needle and moved to the side of the shim block away from the first boss. Wherein, when the previous position to be sewn moves to the side of the shim block away from the first boss after being sewn by the needle, the next position to be sewn moves into the first through hole.
[0022] Specifically, after the fabric is supported by the first boss at the first through hole and sewn, it moves toward the shim block. The direction of fabric movement is opposite to the direction of sewing. During the sewing process, when the previous position to be sewn moves to the side of the shim block away from the first boss after being sewn by the needle and is supported by the shim block, the next position to be sewn moves into the first through hole to wait for the needle to sew. The shim block lifts up the fabric at the previous position to be 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, reduces the tension of the bottom thread in the same length of seam, and reduces the degree of inward shrinkage of the fabric, thus improving the flatness of the fabric. Attached Figure Description
[0023] 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.
[0024] Figure 1 This is a schematic diagram of the structure of the pinhole plate provided in an embodiment of the present utility model;
[0025] Figure 2 for Figure 1 Top view;
[0026] Figure 3 for Figure 1 Side view.
[0027] in:
[0028] 100 - Pinhole plate body, 110 - Mounting hole;
[0029] 200 - First boss, 210 - First side surface;
[0030] 300 - First through hole;
[0031] 400 - Elevating block, 410 - Second side surface, 420 - Guide surface;
[0032] 500 - First tank. Detailed Implementation
[0033] 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.
[0034] 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.
[0035] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", 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.
[0036] 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.
[0037] It should be noted that in this embodiment, the X direction in the attached figure is defined as the first direction, the Y direction as the second direction, and the Z direction as the third direction. The first direction is perpendicular to the second direction, and both the first and second directions are perpendicular to the third direction.
[0038] Please see Figures 1 to 3To achieve the above objectives, this utility model provides a pinhole plate, including a pinhole plate body 100, a first boss 200, a first through hole 300, and a shim block 400. The pinhole plate body 100 is used to connect with the needle plate of a template machine. The pinhole plate body 100 is provided with two mounting holes 110, and the two mounting holes 110 are symmetrically arranged about the axis of the pinhole plate body 100. The needle plate is provided with 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 needle plate, and then installed together with the needle plate onto the lower rotating device of the template machine. The lower rotating device can drive the needle plate and the pinhole plate body 100 to rotate. The symmetrical arrangement of the two mounting holes 110 about the axis of the pinhole plate body 100 helps to make the mounting holes 110 bear force evenly and avoid local stress concentration caused by eccentric load. The connectors can be, but are not limited to, screws.
[0039] The first boss 200 protrudes along the first direction from the side of the pinhole plate body 100 away from the needle plate. The first boss 200 is used to support the fabric located on the side of the first boss 200 away from the pinhole plate body 100. The side of the pinhole plate body 100 away from the needle plate is also the upper surface of the pinhole plate body 100. When the pinhole plate body 100 is in a horizontal state, the upper surface of the pinhole plate body 100 is set horizontally, and the first direction is the height direction. The first through hole 300 penetrates the pinhole plate body 100 and the first boss 200 along the first direction. The first through hole 300 is used for the needle of the template machine to pass through, so as to sew the position to be sewn in the fabric located at the first through hole 300. When the needle pierces the fabric along the first direction, the outer periphery on both sides of the first through hole 300 along the third direction can support the fabric, so that the first boss 200 supports the fabric, which can prevent the fabric from collapsing and causing defects such as skipped stitches, and greatly improve work efficiency.
[0040] The shim block 400 protrudes along the first direction from the side of the first boss 200 away from the pinhole plate body 100. That is, when the pinhole plate body 100 is in a horizontal state, the top of the shim block 400 is higher than the height of the upper surface of the first boss 200. The shim block 400 is used to support the fabric that has been sewn by the machine needle and moved to the side of the shim block 400 away from the first boss 200. The upper surface of the shim block 400 can lift the fabric and enhance its strength. When the previous sewing position moves to the side of the shim block 400 away from the first boss 200 after being sewn by the machine needle, the next sewing position moves into the first through hole 300. It should be noted that the position of the previous sewing position waiting to be sewn in the first through hole 300 is the same as the position of the next sewing position waiting to be sewn in the first through hole 300.
[0041] After the fabric is supported by the first protrusion 200 at the first through hole 300 and sewn, it moves toward the padding block 400. The direction of fabric movement is opposite to the direction of sewing. During the sewing process, when the previous position to be sewn moves to the side of the padding block 400 away from the first protrusion 200 after being sewn by the needle and is supported by the padding block 400, the next position to be sewn moves into the first through hole 300 to wait for the needle to sew. The padding block 400 lifts up the fabric at the previous position to be 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, reduces the tension of the bottom thread in the same length of seam, and reduces the degree of inward shrinkage of the fabric, thus improving the flatness of the fabric.
[0042] In this embodiment, the direction of the fabric movement is the direction of the first through hole 300 toward the raised block 400, and the direction of the sewing advance is the direction of the raised block 400 toward the first through hole 300. Preferably, both the fabric movement direction and the sewing advance direction are the second direction. The raised block 400 has a certain thickness in the fabric movement direction, so that the raised block 400 has a proximal end that is closer to the first through hole 300 and a distal end that is farther away. This allows the previous sewing position of the fabric to be moved between the proximal end and the distal end of the raised block 400 after sewing in the first through hole 300, which has a certain degree of flexibility.
[0043] In one possible implementation, when the previous sewing position moves a preset distance toward the shim block 400 after being sewn by the machine needle, the next sewing position moves into the first through hole 300 to wait for sewing. The position of the previous sewing position waiting for sewing in the first through hole 300 is the same as the position of the next sewing position waiting for sewing in the first through hole 300. The preset distance is the distance between two adjacent sewing positions, i.e., the stitch length. The size of the stitch length can be set according to actual needs. When a smaller stitch length is required, even if the previous sewing position cannot move directly to the side of the shim block 400 away from the first boss 200 in a single movement after being sewn by the machine needle (for example, it is necessary to move both sides), the shim block 400 can still enhance the strength of the fabric by lifting the fabric adjacent to the previous sewing position (for example, the first two sewing positions), and prevent the bottom thread from being insufficient due to the deformation of the fabric during the take-up process.
[0044] In one possible implementation, the first boss 200 includes a first side surface 210 connected to the side of the needle plate body 100 facing away from the needle plate. A shim block 400 is located at one end of the first boss 200 in the second direction. The first through hole 300 is positioned close to the other end of the first boss 200 in the second direction to avoid the shim block 400 and the first through hole 300 being too close. The position of the shim block 400 is at the tail end of the sewing forward direction, ensuring that the shim block 400 lifts the previous sewing position after the needle has passed through it. The side of the shim block 400 facing away from the first boss 200 is a semicircle perpendicular to the first direction. The raised block 400 includes a second side 410 that is opposite to the first through hole 300 and connected to the first side 210. The second side 410 extends upward to the arc edge of the semi-circular surface. The slope of the first side 210 and the second side 410 relative to the side of the pinhole plate body 100 that is opposite to the pin plate is the same, which makes the first boss 200 and the raised block 400 easy to process, while preventing the template from being stuck by the first boss 200 and the raised block 400 when it moves. The specific slope of the first side 210 and the second side 410 relative to the side of the pinhole plate body 100 that is opposite to the pin plate can be set according to actual needs, and is not specifically limited here.
[0045] In one possible implementation, the shim block 400 further includes a guide surface 420 facing the first through hole 300 and connected to the second side surface 410. The guide surface 420 extends upward to the straight edge of the semi-circular surface. The angle between the guide surface 420 and the side of the first boss 200 away from the pinhole plate body 100 is greater than 90 degrees, that is, the guide surface 420 and the side of the first boss 200 away from the pinhole plate body 100 are set at an obtuse angle. When the side of the first boss 200 away from the pinhole plate body 100 is set horizontally, the guide surface 420 is inclined relative to the height direction, which reduces the obstruction to the horizontal movement of the fabric and plays a certain guiding role in the horizontal movement of the fabric.
[0046] In one possible implementation, the cross-sectional dimension of the first boss 200 perpendicular to the first direction gradually decreases in the direction away from the needle plate, that is, the bottom dimension of the first boss 200 is larger than the top dimension of the first boss 200; the cross-sectional dimension of the shim block 400 perpendicular to the first direction gradually decreases in the direction away from the first boss 200, that is, the bottom dimension of the shim block 400 is larger than the top dimension of the shim block 400. The thickness of the shim block 400 in the first direction is 1.0-1.5 times the thickness of the first boss 200 in the first direction, which can effectively reduce the thread tension of the bottom thread and improve the flatness of the fabric.
[0047] In one possible implementation, the first boss 200 is provided with a first groove 500 on the side opposite to the pinhole plate body 100. The first groove 500 has a certain depth in the first direction. The first groove 500 is connected to the first through hole 300 and is located between the first through hole 300 and the pad block 400. The edges of the first groove 500 and the first through hole 300 are both smoothly provided to avoid wear between the stitching and the first groove 500 and the first through hole 300.
[0048] The first groove 500 is formed on the side of the first protrusion 200 away from the pinhole plate body 100, and the first groove 500 is connected to the first through hole 300. Compared with only the first through hole 300 and no first groove 500, the side of the first protrusion 200 away from the pinhole plate body 100 forms a larger opening with a certain depth in the first direction. The length direction of the first groove 500 is parallel to the second direction, and the first groove 500 is set in the middle of the first protrusion 200 in the third direction. The size of the opening in the second direction is larger than the size of the first through hole 300 in the second direction. In this way, during the sewing process, even if the top thread is twisted into a ball, it can pass through the opening more smoothly, preventing the generation of slip points. At the same time, the first groove 500 can form a clearance space for the bottom thread to enter it.
[0049] In one possible implementation, the maximum width of the first groove 500 in the third direction is less than the maximum width of the first through hole 300 in the third direction, so as to avoid the first groove 500 having an excessively large cross-sectional dimension perpendicular to the first direction, which would cause the fabric above it to collapse and affect the supporting effect of the first boss 200 on the fabric.
[0050] This application also provides a template machine, which includes the aforementioned perforated plate, a sewing head, and a needle plate. The needle is mounted on the sewing head, and the needle plate and perforated plate cooperate with the needle to complete the sewing work. This template machine also has all the beneficial effects of the perforated plate. Other parts of the template machine can be referred to the prior art, and will not be elaborated here.
[0051] 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.
[0052] 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.
[0053] 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 by, include: The pin plate body (100) is used to connect with the pin plate of the template machine; The first boss (200) protrudes along a first direction from the side of the pinhole plate body (100) away from the pin plate, and the first boss (200) is used to support the fabric located on the side of the first boss (200) away from the pinhole plate body (100). The first through hole (300) extends through the needle plate body (100) and the first boss (200) along the first direction. The first through hole (300) is used for the needle of the template machine to pass through, so as to sew the position to be sewn in the fabric located at the first through hole (300). The shim block (400) protrudes along the first direction from the side of the first boss (200) away from the needle plate body (100). The shim block (400) is used to support the fabric that has been sewn by the needle and moved to the side of the shim block (400) away from the first boss (200). When the previous sewing position moves to the side of the raised block (400) away from the first boss (200) after being sewn by the needle, the next sewing position moves into the first through hole (300).
2. The pinhole plate according to claim 1, characterized in that, The first boss (200) includes a first side surface (210) connected to the side of the pinhole plate body (100) away from the pin plate. The shim block (400) is located at one end of the first boss (200) in a second direction. The shim block (400) includes a second side surface (410) away from the first through hole (300) and connected to the first side surface (210). The first side surface (210) and the second side surface (410) have the same slope relative to the side of the pinhole plate body (100) away from the pin plate. The first direction and the second direction are perpendicular.
3. The pinhole plate according to claim 2, characterized in that, The shim block (400) further includes a guide surface (420) facing the first through hole (300) and connected to the second side surface (410), the angle between the guide surface (420) and the side of the first boss (200) away from the pinhole plate body (100) is greater than 90 degrees.
4. The pinhole plate according to claim 1, characterized in that, The cross-sectional dimension of the first boss (200) perpendicular to the first direction gradually decreases in the direction away from the needle plate.
5. The pinhole plate according to claim 1, characterized in that, The cross-sectional dimension of the raised block (400) perpendicular to the first direction gradually decreases in the direction away from the first boss (200).
6. The pinhole plate according to claim 2, characterized in that, The first boss (200) is provided with a first groove (500) on the side away from the pinhole plate body (100). The first groove (500) is connected to the first through hole (300) and is located between the first through hole (300) and the shim block (400).
7. The pinhole plate according to claim 6, characterized in that, The length direction of the first groove (500) is parallel to the second direction.
8. The pinhole plate according to claim 6, characterized in that, The maximum width of the first groove (500) in the third direction is less than the maximum width of the first through hole (300) in the third direction, which is perpendicular to the first direction and the second direction.
9. The pinhole plate according to any one of claims 1-8, characterized in that, The pinhole plate body (100) is provided with two mounting holes (110), and the two mounting holes (110) are symmetrically arranged about the axis of the pinhole plate body (100).
10. A template machine, characterized in that, Including the pinhole plate as described in any one of claims 1-9.