Curved needle seat of double-needle chain type machine

Abstract

The utility model discloses a curved needle seat of a double-needle chain type machine, which relates to the technical field of sewing machines, and adopts the following scheme that the curved needle seat comprises a back plate and a mounting mechanism mounted below the back plate, and the mounting mechanism comprises a mounting plate component and a supporting component; the mounting plate assembly comprises a connecting cylinder, a through hole, a mounting connecting rod, a spring, a left limiting plate, a right limiting plate and an end plate, the connecting cylinder is mounted in front of the back plate, the through hole is formed in the connecting cylinder, the mounting connecting rod is mounted in the through hole, and the spring is mounted on the outer surface of the middle of the mounting connecting rod; the device is installed by arranging the installation holes, a user can install the device through the installation bolts, the installation bolts are placed in the installation holes during installation, and due to the fact that the inner walls of the installation holes are sawtooth-shaped, the installation bolts and the installation holes are clamped more tightly; and the situation that when the curved needle is installed, an installation bolt falls off from the interior of the device, use of the device is affected, and the device is damaged is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing machines, in particular to a double-needle chain machine curved needle seat. Background Art

[0002] The double-needle chain sewing machine is a type of sewing machine that forms one or more stitches on the sewing material to interweave or sew one or more layers of sewing material. The sewing machine can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, as well as products such as leather, plastic, and paper. The stitches are neat, beautiful, flat, and firm. The sewing speed is fast and the use is easy. It has also been used to derive art forms such as hand-push embroidery and computer embroidery. When the curved needle is in use, the distance between the two layers of fabric to be sewn is kept in the sewing position, so a curved needle seat is required to install the curved needle.

[0003] The existing looper seat is not convenient to adjust during use, and after installation, the looper seat is easy to slide inside the device, which is not convenient to use. Therefore, a double-needle chain machine looper seat is needed. Utility Model Content

[0004] The purpose of the utility model is to provide a double-needle chain machine bending needle seat, which solves the problems in the prior art that the existing bending needle seat is inconvenient to adjust during use, and the bending needle seat is easy to slide inside the device after installation, making it inconvenient to use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-needle chain machine looper seat, comprising a back plate and a mounting mechanism mounted below the back plate, the mounting mechanism comprising a mounting plate assembly and a support assembly;

[0006] The mounting plate assembly comprises a connecting tube, a through hole, a mounting connecting rod, a spring, a left limit plate, a right limit plate and an end plate. The front of the back plate is provided with a connecting tube, and a through hole is provided inside the connecting tube. The mounting connecting rod is provided inside the through hole. The middle outer surface of the mounting connecting rod is provided with a spring. The left side of the spring is fixed with a left limit plate, and the right side of the spring is fixed with a right limit plate. The right end of the mounting connecting rod is provided with an end plate.

[0007] The support assembly includes an adjustment mechanism, a base plate, a bottom mounting plate, mounting holes and mounting bolts. The adjustment mechanism is installed at the bottom of the back plate, and the base plate is installed at the bottom of the adjustment mechanism. The bottom mounting plate is installed at the bottom of the base plate, and a mounting hole is opened inside the bottom mounting plate, and mounting bolts are installed inside the mounting hole.

[0008] Preferably, the mounting connecting rod forms a pressing structure between the spring and the connecting tube, and the diameters of the left limit plate and the right limit plate are larger than the diameter of the through hole.

[0009] Preferably, the adjustment mechanism includes a screw, a ring, a slide groove, a slider and an adjustment plate, the outside of the screw is meshed with a ring, the bottom of the back plate is provided with a slide groove, and a slider is installed inside the slide groove, and the adjustment plate is installed on the right end of the screw.

[0010] Preferably, the bottom plate forms a translation structure with the back plate through the cooperation between the collar and the screw, and the thickness of the bottom plate is equal to that of the back plate.

[0011] Preferably, the bottom plate forms a translation structure with the back plate through cooperation between the slider and the slide groove, and the bottom plate forms a sliding structure through cooperation between the slider and the slide groove.

[0012] Preferably, the mounting holes are symmetrical with respect to the vertical center line of the bottom mounting plate, and the inner walls of the mounting holes are serrated.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The device is installed by setting a mounting hole so that the user can install the device by mounting bolts. During installation, the mounting bolts are placed inside the mounting holes. Since the inner wall of the mounting holes is serrated, the mounting bolts can be more tightly clamped with the mounting holes, thereby preventing the mounting bolts from falling from the inside of the device when the bending needle is installed, affecting the use of the device and causing damage to the device.

[0015] 2. By setting an adjustment mechanism to translate the position of the bottom plate, the bottom plate can be driven by the screw through the sleeve to translate left and right directions inside the device. During the translation process, the distance between the bottom plate and the back plate can be adjusted to improve the flexibility of the device during use. The user rotates the screw by turning the adjustment plate, which can drive the screw to rotate. Since the sleeve and the screw are meshed with each other, the sleeve will translate inside the device when the screw rotates, thereby improving the flexibility between the bottom plate and the back plate and facilitating the use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The overall structure diagram of this utility model is as follows;

[0017] Figure 2 This is a schematic diagram of the overall right-side structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the regulating mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the practical adjustment mechanism.

[0020] In the figure: 1. back plate; 2. connecting tube; 3. through hole; 4. mounting rod; 5. spring; 6. left limit plate; 7. right limit plate; 8. end plate; 9. adjustment mechanism; 901. screw; 902. collar; 903. slide groove; 904. slider; 905. adjustment plate; 10. bottom plate; 11. bottom mounting plate; 12. mounting hole; 13. mounting bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] like Figure 1-2 As shown, a double-needle chain machine looper seat in the figure includes a back plate 1 and a mounting mechanism installed below the back plate 1, and the mounting mechanism includes a mounting plate assembly and a support assembly;

[0024] The mounting plate assembly includes a connecting tube 2, a through hole 3, a mounting connecting rod 4, a spring 5, a left limit plate 6, a right limit plate 7 and an end plate 8. The connecting tube 2 is installed in front of the back plate 1, and a through hole 3 is opened inside the connecting tube 2. The mounting connecting rod 4 is installed inside the through hole 3. The spring 5 is installed on the middle outer surface of the mounting connecting rod 4. The left limit plate 6 is fixed to the left side of the spring 5, and the right limit plate 7 is fixed to the right side of the spring 5. The end plate 8 is installed on the right end of the mounting connecting rod 4;

[0025] The supporting assembly includes an adjusting mechanism 9, a base plate 10, a bottom mounting plate 11, mounting holes 12 and mounting bolts 13. The adjusting mechanism 9 is installed at the bottom of the back plate 1, and the base plate 10 is installed at the bottom of the adjusting mechanism 9. The bottom mounting plate 11 is installed at the bottom of the base plate 10, and the bottom mounting plate 11 has a mounting hole 12 opened inside, and the mounting bolts 13 are installed inside the mounting hole 12.

[0026] The installation link 4 forms a pressing structure with the spring 5 and the connecting tube 2, and the diameters of the left limit plate 6 and the right limit plate 7 are larger than the diameter of the through hole 3, so that the installation link 4 can be translated in the left and right directions inside the device, and then the spring 5 can press the installation link 4, so that the installation link 4 can be deflected inside the device, which is convenient for the installation of the bending needle. The distance between the sewing material and the bending needle is adjusted by the spring 5 to facilitate the sewing operation.

[0027] The mounting holes 12 are symmetrical with respect to the vertical center line of the bottom mounting plate 11, and the inner wall of the mounting hole 12 is serrated, so that the user can install the device by means of the mounting bolts 13. During installation, the mounting bolts 13 are placed inside the mounting holes 12. Since the inner wall of the mounting holes 12 is serrated, the mounting bolts 13 can be clamped tighter with the mounting holes 12, thereby preventing the mounting bolts 13 from falling from the inside of the device when the bending needle is installed, thereby affecting the use of the device and causing damage to the device.

[0028] Example 2

[0029] like Figure 3 and Figure 4 As shown, this embodiment further illustrates Example 1, the adjustment mechanism 9 includes a screw 901, a ring 902, a slide groove 903, a slider 904 and an adjustment plate 905, the outer portion of the screw 901 is meshed with the ring 902, the bottom of the back plate 1 is provided with a slide groove 903, and the interior of the slide groove 903 is installed with a slider 904, and the right end of the screw 901 is installed with an adjustment plate 905.

[0030] The bottom plate 10 forms a translation structure with the back plate 1 through the cooperation between the ring 902 and the screw 901, and the thickness of the bottom plate 10 and the back plate 1 is equal, so that the bottom plate 10 can be driven by the screw 901 through the ring 902 to translate in the left and right directions inside the device. During the translation process, the distance between the bottom plate 10 and the back plate 1 can be adjusted to improve the flexibility of the device during use. The user rotates the screw 901 by rotating the adjustment plate 905, and the screw 901 can be driven to rotate during the rotation. Since the ring 902 and the screw 901 are meshed with each other, the ring 902 will translate inside the device when the screw 901 rotates, thereby improving the flexibility between the bottom plate 10 and the back plate 1 and facilitating the use of the device.

[0031] The bottom plate 10 forms a translation structure with the back plate 1 through the cooperation between the slider 904 and the slide groove 903, and the bottom plate 10 forms a sliding structure with the slider 904 and the slide groove 903, so that the bottom plate 10 can slide inside the ring 902 through the slider 904 fixed on the top during the process of left and right translation inside the device, thereby maintaining the stability between the bottom plate 10 and the back plate 1, making it convenient to use the device.

[0032] During use: the user installs the device through the mounting bolt 13. During installation, the mounting bolt 13 is placed inside the mounting hole 12. Since the inner wall of the mounting hole 12 is serrated, the mounting bolt 13 is more tightly clamped with the mounting hole 12 to prevent the mounting bolt 13 from falling from the inside of the device when the device is installing the curved needle, affecting the use of the device and causing damage to the device. Then, during installation, the bottom plate 10 is driven by the screw rod 901 through the collar 902 to translate in the left and right directions inside the device. During the translation process, the distance between the bottom plate 10 and the back plate 1 is adjusted to improve the flexibility of the device during use. The user rotates the screw rod 901 by rotating the adjustment plate 905, which drives the screw rod 901 to rotate when rotating. The rod 901 rotates, and since the ring 902 and the screw 901 are meshed with each other, the ring 902 will translate inside the device when the screw 901 rotates, thereby improving the flexibility between the bottom plate 10 and the back plate 1 and facilitating the use of the device. During the left and right translation of the bottom plate 10 inside the device, the slider 904 fixed on the top will slide inside the ring 902, thereby maintaining the stability between the bottom plate 10 and the back plate 1 and facilitating the use of the device. Thereafter, the bending needle is installed by installing the connecting rod 4, and the spring 5 presses the installing connecting rod 4 to facilitate the deflection of the installing connecting rod 4 inside the device, thereby facilitating the installation of the bending needle, and adjusting the distance between the sewing material and the bending needle by the spring 5 to facilitate sewing operations.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-needle chain machine looper seat, comprising a back plate (1) and a mounting mechanism mounted below the back plate (1), characterized in that: The mounting mechanism includes a mounting plate assembly and a support assembly; The mounting plate assembly comprises a connecting tube (2), a through hole (3), a mounting connecting rod (4), a spring (5), a left limiting plate (6), a right limiting plate (7) and an end plate (8); the connecting tube (2) is installed in front of the back plate (1), and a through hole (3) is provided inside the connecting tube (2); a mounting connecting rod (4) is installed inside the through hole (3); a spring (5) is installed on the outer surface of the middle part of the mounting connecting rod (4); a left limiting plate (6) is fixed on the left side of the spring (5), and a right limiting plate (7) is fixed on the right side of the spring (5); and an end plate (8) is installed on the right end of the mounting connecting rod (4); The support assembly comprises an adjustment mechanism (9), a base plate (10), a bottom mounting plate (11), a mounting hole (12) and a mounting bolt (13); the adjustment mechanism (9) is mounted on the bottom of the back plate (1), the base plate (10) is mounted on the bottom of the adjustment mechanism (9), the bottom mounting plate (11) is mounted on the bottom of the base plate (10), the bottom mounting plate (11) is provided with a mounting hole (12) inside, and the mounting bolt (13) is mounted inside the mounting hole (12).

2. A double needle chain machine looper according to claim 1, characterized in that: The mounting connecting rod (4) forms a pressing structure with the connecting tube (2) through the spring (5), and the diameters of the left limiting plate (6) and the right limiting plate (7) are greater than the diameter of the through hole (3).

3. A double needle chain machine looper according to claim 1, characterized in that: The adjustment mechanism (9) comprises a screw rod (901), a collar (902), a slide groove (903), a slider (904) and an adjustment plate (905); the outer portion of the screw rod (901) is meshed with the collar (902); the bottom of the back plate (1) is provided with a slide groove (903); the interior of the slide groove (903) is provided with a slider (904); and the right end portion of the screw rod (901) is provided with an adjustment plate (905).

4. A double needle chain machine looper according to claim 3, characterized in that: The bottom plate (10) forms a translation structure with the back plate (1) through the cooperation between the collar (902) and the screw rod (901), and the bottom plate (10) and the back plate (1) have the same thickness.

5. The double needle chain machine looper according to claim 3, characterized in that: The bottom plate (10) forms a translation structure with the back plate (1) through the cooperation between the slider (904) and the slide groove (903), and the bottom plate (10) forms a sliding structure through the cooperation between the slider (904) and the slide groove (903).

6. A double needle chain sewing machine looper according to claim 1, characterized in that: The mounting holes (12) are symmetrical with respect to the vertical center line of the bottom mounting plate (11), and the inner wall of the mounting hole (12) is serrated.

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