Height and angle adjusting mechanism for insertion strip guide-in piece, adjusting device and sewing machine

Abstract

The utility model discloses a height and angle adjusting mechanism for an insertion strip guide-in piece, an adjusting device and a sewing machine. The height and angle adjusting mechanism for the insertion strip guide-in piece comprises a connecting block, a connecting piece and a guide plate. The connecting block is provided with a first round hole and a second round hole; the connecting piece is provided with a fixing shaft, the fixing shaft is inserted into the first round hole of the connecting block, and the connecting block can rotate around the fixing shaft; a rotating shaft is arranged at one end of the guide plate, the other end of the guide plate can be connected with an insertion strip guide-in piece, and the rotating shaft is inserted into the second round hole of the connecting block and can rotate in the second round hole. When the rotating shaft rotates around the fixed shaft, the height of the guide plate and the insertion strip guiding-in piece changes, and when the rotating shaft rotates, the front-back angle of the guide plate and the front-back angle of the insertion strip guiding-in piece change. By adjusting the height and the pitching angle of the insertion strip guide-in piece, more feeding ports can be formed in the lower end of the insertion strip guide-in piece, and sewing of the insertion strip and the fabric at the lower end is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical fields of clothing, curtains, car seat covers processing, etc., and particularly relates to a height and angle adjusting mechanism, an adjusting device and a sewing machine for an inlay strip introducing part. Background Art

[0002] An inlay strip is a material used for decoration, mounting or connection. In product manufacturing, inlay strips are usually used to decorate clothes, bags, pillows, curtains, car seat cover splicing, etc. They can be made of fillers such as cotton ropes or simply folded and ironed cloth strips. Usually, during the sewing process, when sandwiching a woven belt inlay strip, it is manually stacked with the fabric to be inserted and then placed under the sewing needle on the sewing machine table. The operator holds the woven belt inlay strip by hand and steps on and pulls it for sewing little by little; this method not only has low sewing work efficiency, but also the woven belt inlay strip sewn is prone to bending and skewing, thus affecting the overall aesthetics of the sewn product. Therefore, some auxiliary tools have emerged. These tools usually have a guiding drawstring for threading the woven belt inlay strip. In this way, when sewing, it is not necessary to hold the woven belt inlay strip by hand and step on and pull it for sewing little by little, the work efficiency is improved, and the woven belt inlay strip sewn on the sewn product is not prone to bending and skewing, thus better maintaining the overall aesthetics of the sewn product. After these tools are fixed on the sewing machine table, they can often only adjust the length of the guiding drawstring, but cannot adjust the height and the front and rear pitching angles, and the adjustable space is small. When the lower fabric of the inlay strip, such as the leather cut piece of a car seat with thick foam, is thick, it is difficult for the fabric to pass through the lower part of the guiding drawstring, resulting in slow sewing speed, or even the fabric cannot smoothly pass through the lower part of the guiding drawstring and it is difficult to sew. Content of the Utility Model

[0003] Aiming at the deficiencies existing in the prior art, the utility model provides a height and angle adjusting mechanism, an adjusting device and a sewing machine for an inlay strip introducing part. The specific technical solutions are as follows:

[0004] A height and angle adjusting mechanism for an inlay strip introducing part includes a connecting block, a connecting piece and a guiding plate; the connecting block is provided with a first round hole and a second round hole; the connecting piece has a fixed shaft, the fixed shaft is inserted into the first round hole of the connecting block, and the connecting block can rotate around the fixed shaft; one end of the guiding plate is provided with a rotating shaft, the other end can be connected to the inlay strip introducing part, the rotating shaft is inserted into the second round hole of the connecting block, and the rotating shaft can rotate in the second round hole. When the rotating shaft rotates around the fixed shaft, the height of the guiding plate and the inlay strip introducing part changes. When the rotating shaft rotates by itself, the front and rear angles of the guiding plate and the inlay strip introducing part change. Adjusting the height and pitching angle of the inlay strip introducing part can make the lower end of the inlay strip introducing part have more feeding ports, which is convenient for sewing the inlay strip and the lower fabric.

[0005] Further, the first round hole and the second round hole are respectively located on both sides of the center of the connecting block. An elastic seam is provided on the side of the first round hole and the second round hole away from the center of the connecting block. Elastic screws for adjusting the elastic seam are provided on both the upper and lower sides of the elastic seam. The elastic seam can adjust the tightness between the fixed shaft and the rotating shaft and the connecting block. After adjusting the height and pitching angle of the guide plate, tighten the screws so that the upper and lower ends of the elastic seam approach each other, and the rotating shaft and the connecting block no longer rotate. During the sewing process, the guide plate also no longer moves up and down or rotates back and forth, which is convenient and practical.

[0006] Further, a first vertical plate is provided on the connecting block, which extends vertically upward from one end of the connecting block close to the guide plate. The fixed shaft extends horizontally from the center of the first vertical plate toward the end close to the guide plate. A second vertical plate is provided on the guide plate, which extends vertically upward from one end of the guide plate close to the connecting member. The rotating shaft extends horizontally from the center of the second vertical plate toward the end close to the connecting member. The connecting member and the guide plate are integrally in an "L" shape, and its structure is more stable.

[0007] Further, the guide plate is provided with an inlet fitting mounting hole for mounting an inlay strip inlet fitting. The inlet fitting mounting hole is two parallel oblong holes. The guide plate can mount the inlay strip inlet fitting on the inlet fitting mounting hole through mounting screws. The oblong holes can adjust the position of the inlay strip inlet fitting in the left - right direction, facilitating the adjustment of the distance between the inlay strip inlet fitting and the sewing machine needle buckle.

[0008] An adjusting device for an inlay strip inlet fitting, characterized by comprising a mounting assembly that can be mounted on a sewing machine, a horizontal rotation mechanism of the inlay strip inlet fitting, and any one of the above height and angle adjusting mechanisms. The height and angle adjusting mechanism is rotationally connected to the horizontal rotation mechanism, and one end of the horizontal rotation mechanism away from the height and angle adjusting mechanism is fixedly connected to the mounting assembly.

[0009] Further, the horizontal rotation mechanism includes a set screw and a connecting bottom plate. The screw part of the set screw includes a smooth part and a threaded part. The connecting member can rotate around the smooth part, and the threaded part is embedded in the connecting bottom plate. By rotating the connecting member, the guide plate connected thereto is turned away from the sewing machine needle buckle. In this way, when the inlay strip inlet fitting is not in use, it can be conveniently moved so as not to affect other clothing sewing operations on the sewing machine table.

[0010] Further, the installation component includes a base and a mounting plate. The base can be fixedly installed on the sewing machine tabletop. The mounting plate is installed on the base through a knob. Two long slots are linearly and juxtaposedly penetrated through the end of the base on the side away from the material guiding mechanism, and the long slots are parallel to the long side direction of the base. Setting two long slots allows two bolts to be installed simultaneously, which can prevent the mounting seat from rotating and keep it always perpendicular to the sewing direction of the sewing needle on the sewing machine tabletop. At the same time, compared with ordinary round holes, the long slots can reasonably adjust the front and rear positions of the base as needed, facilitating the adjustment of the distance between the guiding drawstring and the sewing machine needle.

[0011] Furthermore, the bottom surface of the connecting base plate is at the same horizontal height as the bottom surface of the base. The connecting base plate and the mounting plate are fixedly connected by screws. The horizontal section and the bottom surface of the base jointly contact the sewing machine tabletop and jointly support the entire adjusting device, enhancing its stability.

[0012] A sewing machine includes a sewing machine functional component, an operating table, a strip guiding member, and an adjusting device for any one of the above strip guiding members. The adjusting device for the strip guiding member is installed on the operating table. The strip guiding member is provided with screw holes, and the strip guiding member can be installed on the guiding plate by screwing screws into the guiding member mounting holes and the screw holes.

[0013] Further, the strip guiding member is rectangular. A long and narrow hole is provided on the strip guiding member. The long and narrow hole includes a circular portion and a strip portion, and the circular portion and the strip portion are communicated with each other. A baffle is provided on one side of the strip guiding member. The end of the baffle away from the sewing machine needle hole is flush with the guiding drawstring, and the end close to the sewing machine needle hole extends beyond the guiding drawstring. The strip becomes smoother through the flat and long hole, which is convenient for sewing. The circular hole is convenient for the strip containing a cord-like object to pass through the strip guiding member. The baffle can keep the strip flat after it comes out of the long and narrow hole of the strip guiding member, which is convenient for sewing.

[0014] The present utility model optimizes various aspects of the adjusting device for the existing strip guiding member, increases the adjustability of the adjusting device for the strip guiding member, and further meets the sewing requirements of users. Description of the Drawings

[0015] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a structural schematic diagram of an adjusting device for a strip guiding member of the present utility model.

[0017] Figure 2 This is a partial exploded view of an adjusting device for a strip guiding member of the present utility model.

[0018] Figure 3 This is a schematic structural view of a connecting block for an adjusting device of a strip guiding member of the present utility model.

[0019] Figure 4 This is a schematic structural view of a strip guiding member for a sewing machine of the present utility model.

[0020] In the figure: 10, base; 11, long slot; 20, mounting plate; 30, knob; 40, strip guiding member; 41, guiding draw opening; 42, circular hole; 43, strip hole; 50, connecting base; 60, connecting member; 63, fixed shaft; 64, first vertical plate; 70, guiding plate; 71, guiding member mounting hole; 72, rotating shaft; 73, second vertical plate; 80, baffle; 90, adjusting block; 91, first round hole; 92, tight and loose seam; 93, screw hole; 94, second round hole; 96, tight and loose screw. Specific embodiments

[0021] In this application, unless otherwise clearly defined and limited, the terms "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0022] In this application, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "above" and "on the top" of the second feature includes that the first feature is directly above and obliquely above the second feature, or merely means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "below" and "under the bottom" of the second feature includes that the first feature is directly below and obliquely below the second feature, or merely means that the horizontal height of the first feature is lower than that of the second feature.

[0023] Please refer to Figure 1 and 2, A height and angle adjustment mechanism for an inlay guiding part of a sewing machine, including a connecting block 90, a connecting piece 60 and a guiding plate 70; the connecting block 90 is provided with a first round hole 91 and a second round hole 94; the connecting piece 60 has a fixed shaft 63, and the fixed shaft 63 is inserted into the first round hole 91 of the connecting block, and the connecting block 90 can rotate around the fixed shaft 63; one end of the guiding plate 70 is provided with a rotating shaft 72, and the other end can be connected to the inlay guiding part. The rotating shaft 72 is inserted into the second round hole 94 of the connecting block, and the rotating shaft 72 can rotate in the second round hole 94. When it is necessary to adjust the height of the inlay guiding part, fix the connecting piece 60, rotate the connecting block 90 to make the rotating shaft 72 rotate around the fixed shaft 63, and the vertical distance between the guiding plate 70 and the sewing machine tabletop changes; when it is necessary to adjust the angle of the inlay guiding part, fix the connecting block 90, rotate the guiding plate 70 to make the rotating shaft 72 rotate self in the second round hole 94, and the front and rear pitching angle of the guiding plate 70 changes.

[0024] Please refer to Figure 1 and 3 , the first round hole 91 and the second round hole 94 are respectively located on both sides of the center of the connecting block 90. An elastic seam 92 is provided on the side of the first round hole 91 and the second round hole 94 away from the center of the connecting block 90. Elastic screws 96 for adjusting the elastic seam are provided on both the upper and lower sides of the elastic seam 92. After adjusting the height and pitching angle of the guiding plate, tighten the elastic screws 96 to make the upper and lower ends of the elastic seam 92 approach each other, and the rotating shaft 72 and the connecting block 90 stop rotating.

[0025] Please refer to Figure 1 and 2 , a first vertical plate 64 is provided on the connecting block 60. The first vertical plate 64 extends vertically upward from one end of the connecting block 60 close to the guiding plate 70. The fixed shaft 63 extends horizontally from the center of the first vertical plate 64 toward the end close to the guiding plate 70. A second vertical plate 73 is provided on the guiding plate 70. The second vertical plate 73 extends vertically upward from one end of the guiding plate 70 close to the connecting piece 60. The rotating shaft 72 extends horizontally from the center of the second vertical plate 73 toward the end close to the connecting piece 60.

[0026] Please refer to Figure 1 , the guiding plate 70 is provided with an inlay guiding part installation hole 71 for installing the inlay guiding part. The inlay guiding part installation hole 71 is two parallel long round holes. The guiding plate 70 can install the inlay guiding part on the inlay guiding part installation hole 71 through installation screws. The long round holes can adjust the position of the inlay guiding part in the left - right direction, facilitating the adjustment of the distance between the inlay guiding part and the sewing machine needle buckle. The inlay guiding part installation hole 71 is set to two to prevent mutual rotation between the inlay guiding part and the guiding plate 70.

[0027] An adjusting device for an inlay strip guiding member of a sewing machine, comprising a mounting assembly that can be mounted on the sewing machine, a horizontal rotation mechanism of the inlay strip guiding member, and any one of the above height and angle adjusting mechanisms. The height and angle adjusting mechanism is rotatably connected to the horizontal rotation mechanism, and one end of the horizontal rotation mechanism away from the height and angle adjusting mechanism is fixedly connected to the mounting assembly.

[0028] Please refer to Figure 1 , the horizontal rotation mechanism includes a set screw and a connecting base plate 50. The screw part of the set screw includes a smooth part and a threaded part. The connecting member 60 can rotate around the smooth part, and the threaded part is embedded in the connecting base plate 50.

[0029] Please refer to Figure 1 , the mounting assembly includes a base 10 and a mounting plate 20. The base 10 can be fixedly mounted on the sewing machine tabletop. The mounting plate 20 is mounted on the base 10 through a knob 30. Two long holes 11 are linearly and juxtaposedly penetrated through one end of the base 10 on the side away from the connecting base plate 50, and the long holes 11 are parallel to the long side direction of the base 10. Both the base 10 and the mounting plate 20 are square. After the mounting plate 20 is mounted on the base 10, the bottom surface of the mounting plate 20 is attached to the top surface of the base 10, and the mounting plate 20 extends beyond one side edge of the base 10.

[0030] Please refer to Figure 1 , the connecting base plate 50 includes a horizontal section 51 and a vertical section 52. The bottom surface of the horizontal section 51 is at the same horizontal height as the bottom surface of the base 10. The vertical section 52 extends vertically upward from one end of the horizontal section 51 close to the base 10. The connecting base plate 50 is fixedly connected to the part of the mounting plate 20 that extends beyond one side edge of the base 10.

[0031] A sewing machine, comprising a sewing machine functional component, an operating table, an inlay strip guiding member 40, and any one of the above adjusting devices for the inlay strip guiding member. The adjusting device for the inlay strip guiding member is mounted on the operating table. The inlay strip guiding member 40 is provided with a screw hole, and the inlay strip guiding member 40 can be mounted on the guide plate 70 by screwing a screw into the guide member mounting hole 71 and the screw hole.

[0032] The functional components of a sewing machine mainly consist of the basic parts such as the head, the base, and the transmission that can achieve the mechanical sewing function. The head is the main part of the sewing machine. It consists of four mechanisms: the material piercing mechanism, the thread hooking mechanism, the thread taking-up mechanism, and the feeding mechanism, as well as auxiliary mechanisms such as the thread winding mechanism, the presser mechanism, and the tooth dropping mechanism. The movements of each mechanism are reasonably coordinated to work cyclically to stitch the sewing material together. The base is divided into two forms: the table board and the chassis. The table board of the table board type base plays a role in supporting the head and is used as a workbench during sewing operations. The table board has various styles, such as the one-drawer or multi-drawer folding type, the cabinet type, the writing desk type, etc. The chassis of the chassis type base plays a role in supporting and storing the head, making the sewing machine easy to carry and store. The transmission part of the sewing machine consists of components such as the frame, the hand crank or the motor. The frame is the pillar of the machine, supporting the table board and the foot pedal. When in use, the operator steps on the foot pedal, which drives the rotation of the pulley through the crank, and then drives the head to rotate through the belt. The hand crank or the motor is mostly directly installed on the head.

[0033] Please refer to Figure 4 , the strip guiding member 40 is rectangular, and a guiding draw-in opening 41 is provided on the strip guiding member 40. The guiding draw-in opening 41 includes a circular portion 42 and a strip portion 43. The circular portion 42 and the strip portion 43 communicate with each other. A baffle 80 is provided on one side of the strip guiding member 40. The end of the baffle 80 away from the sewing machine needle hole is flush with the guiding draw-in opening 41, and the end close to the sewing machine needle hole extends beyond the guiding draw-in opening 41.

[0034] During the use of the present invention, when it is necessary to adjust the front-back distance between the guiding draw-in opening 41 and the sewing machine needle opening, loosen the mounting screw in the long slot 71, and the entire adjusting device can be moved back and forth to complete the adjustment of the front-back distance between the guiding draw-in opening 41 and the sewing machine needle opening; when it is necessary to adjust the height between the guiding draw-in opening 41 and the sewing machine table top, loosen the screw of the connecting block 90, and the rotating shaft 72 of the guiding plate 70 rotates around the fixed shaft 63 to achieve the adjustment of the height between the guiding draw-in opening 41 and the sewing machine table top; when it is necessary to adjust the left-right distance between the guiding draw-in opening 41 and the sewing machine needle opening, loosen the screw of the import member mounting hole 71, and the strip guiding member 40 can be moved left and right to achieve the purpose of adjusting the left-right distance between the guiding draw-in opening 41 and the sewing machine needle opening; when it is necessary to adjust the front-back pitching angle of the guiding draw-in opening 41, loosen the screw of the connecting block 90, and rotate the rotating shaft 72 of the guiding plate 70 to achieve the adjustment of the front-back pitching angle of the guiding draw-in opening 41. During the use of the present invention, the adjustments required for sewing the strip can be completed, which is very beneficial to meeting all the adjustment requirements of the user during the use of the strip guiding member 40, and at the same time is also beneficial to improving the sewing efficiency of the strip clothing ornaments.

[0035] The above are only the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited to the above embodiments. All technical solutions falling within the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that for those of ordinary skill in the art, several improvements and refinements made without departing from the principle of the present utility model should also be regarded as within the protection scope of the present utility model.

Claims

1. A height and angle adjustment mechanism for a molding guide, characterized in that: It comprises a connecting block (90), a connecting piece (60) and a guide plate (70); The connecting block (90) is provided with a first circular hole (91) and a second circular hole (94); The connecting member (60) has a fixed shaft (63), the fixed shaft (63) is inserted into the first circular hole (91) of the connecting block (90), and the connecting block (90) can rotate around the fixed shaft (63); The guide plate (70) is provided with a rotating shaft (72) at one end, and the other end can be connected to a fillet guide piece. The rotating shaft (72) is inserted into a second circular hole (94) of the connecting block (90), and the rotating shaft (72) can rotate in the second circular hole (94).

2. A height and angle adjustment mechanism for a molding guide according to claim 1, characterized in that: The first circular hole (91) and the second circular hole (94) are respectively located on two sides of the center of the connection block (90); a tightening slit (92) is provided on one side of the first circular hole (91) and the second circular hole (94) away from the center of the connection block (90); and tightening screws (96) for adjusting the tightening slit (92) are provided on the upper and lower sides of the tightening slit (92).

3. A height and angle adjustment mechanism for a molding guide according to claim 1, characterized in that: The connecting member (60) is provided with a first vertical plate (64), the first vertical plate (64) extending vertically upward from one end of the connecting member (60) close to the guide plate (70), the fixed shaft (63) extending horizontally from the center of the first vertical plate (64) to one end close to the guide plate (70), the guide plate (70) is provided with a second vertical plate (73), the second vertical plate (73) extending vertically upward from one end of the guide plate (70) close to the connecting member (60), and the rotating shaft (72) extending horizontally from the center of the second vertical plate (73) to one end close to the connecting member (60).

4. A height and angle adjustment mechanism for a molding guide according to claim 1, characterized in that: The guide plate (70) is provided with an introduction piece installation hole (71) for installing the molding introduction piece. The introduction piece installation holes (71) are two parallel oblong holes. The guide plate (70) can be used to install the molding introduction piece on the introduction piece installation holes (71) by installing screws.

5. An adjusting device for a molding guide, characterized in that: It comprises a mounting assembly that can be mounted on a sewing machine, a horizontal rotating mechanism of a welt guide, and a height and angle adjusting mechanism as described in any one of claims 1, 2, 3 or 4, wherein the height and angle adjusting mechanism is rotatably connected to the horizontal rotating mechanism, and the horizontal rotating mechanism is fixedly connected to the mounting assembly at one end away from the height and angle adjusting mechanism.

6. The adjusting device for a molding guide according to claim 5, characterized in that: The horizontal rotation mechanism comprises a driving screw and a connecting base plate (50), the screw rod portion of the driving screw comprises a smooth portion and a threaded portion, the connecting member (60) can rotate around the smooth portion, and the threaded portion is embedded in the connecting base plate (50).

7. The adjusting device for a molding guide according to claim 6, characterized in that: The mounting assembly comprises a base (10) and a mounting plate (20); the base (10) can be fixedly mounted on a sewing machine table; the mounting plate (20) is mounted on the base (10) via a knob (30); two elongated holes (11) are linearly arranged and penetrated on an end of the base (10) away from a material guide mechanism, and the elongated holes (11) are parallel to the long side direction of the base (10).

8. The adjusting device for a molding guide according to claim 7, characterized in that: The bottom surface of the connecting bottom plate (50) is at the same level as the bottom surface of the base (10), and the connecting bottom plate (50) is fixedly connected to the mounting plate (20) by means of screws.

9. A sewing machine, characterized in that: The invention comprises a sewing machine functional component, an operating table, a welt guide piece (40) and an adjusting device for the welt guide piece according to claim 5, wherein the adjusting device for the welt guide piece is mounted on the operating table, and a screw hole is provided on the welt guide piece (40). The screw is screwed into the guide piece mounting hole (71) and the screw hole to mount the welt guide piece (40) on the guide plate (70).

10. A sewing machine according to claim 9, characterized in that: The fillet introduction piece (40) is rectangular in shape, and is provided with a narrow hole, the narrow hole comprising a circular portion (42) and a strip portion (43), the circular portion (42) and the strip portion (43) being connected to each other, and a baffle (80) is provided on one side of the fillet introduction piece (40), the end of the baffle (80) away from the sewing machine needle hole is flush with the guide pull hole (41), and the end close to the sewing machine needle hole protrudes beyond the guide pull hole (41).

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