Machine head mounting structure of sewing machine

Abstract

The utility model belongs to the technical field of sewing machines, and relates to a machine head installation structure of a sewing machine, a machine head is connected to a machine frame through a fixing assembly and a hinge assembly, the fixing assembly comprises an assembling screw and a fastening screw, an external thread of the assembling screw is screwed on the machine frame in an axially adjustable mode, and the fastening screw is screwed on the machine frame. The fastening screw penetrates through an inner hole of the assembling screw to be detachably fixed to the machine head in a screwed mode, the hinge assembly comprises a convex hinge base and a concave hinge base, the convex hinge base and the concave hinge base are connected through a connecting pin, and a long groove allowing the connecting pin to move up and down is formed in the convex hinge base. The machine head installation structure of the sewing machine has the advantages of being simple in structure, convenient to maintain and adjustable in use.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewing machines and relates to a head mounting structure of a sewing machine. Background Art

[0002] At present, the heads of the in-line template machines on the market are mostly locked on the frame, which is very difficult to disassemble and causes great trouble for later maintenance. In addition, the existing sewing machine heads can only be installed at a fixed height, which also brings inconvenience when used. Utility Model Content

[0003] The utility model aims at the deficiencies of the prior art and provides a head mounting structure of a sewing machine, which has the advantages of simple structure, convenient maintenance and adjustable use.

[0004] In order to solve the above technical problems, the purpose of the utility model is achieved through the following technical solutions:

[0005] A sewing machine head mounting structure, the head is connected to a frame via a fixing assembly and a hinge assembly, the fixing assembly comprises an assembling screw and a fastening screw, the outer thread of the assembling screw is axially adjustable and screwed to the frame, the fastening screw passes through the inner hole of the assembling screw and is detachably screwed and fixed to the head, the hinge assembly comprises a convex hinge seat and a concave hinge seat, the convex hinge seat and the concave hinge seat are connected via a connecting pin, and the convex hinge seat is provided with a long groove for the connecting pin to move up and down.

[0006] In the above-mentioned sewing machine head mounting structure, a rubber plug is provided above the assembly screw and a gasket is provided below the assembly screw. After the fixing assembly is installed, the rubber plug is in contact with the machine head and the gasket is in contact with the head of the fastening screw. Furthermore, when the fixing assembly is installed, the rubber plug and the gasket are both sleeved on the fastening screw.

[0007] In the above-mentioned head mounting structure of a sewing machine, the hinge assembly is arranged at the rear side of the head, and there are more than two groups of the hinge assembly. Preferably, the hinge assembly is arranged in two groups.

[0008] In the above-mentioned head mounting structure of a sewing machine, the convex hinge seat is fixedly mounted on the rear plane of the head, and the concave hinge seat is fixedly mounted on the frame.

[0009] In the above-mentioned head mounting structure of a sewing machine, the moving stroke of the connecting pin in the long slot is consistent with the axial adjustment stroke of the assembling screw.

[0010] In the above-mentioned sewing machine head mounting structure, the frame is provided with a fixed mounting seat corresponding to the fixed assembly one by one, and the fixed mounting seat is provided with a mounting hole screwed with the assembly screw; the frame is provided with an articulated mounting seat corresponding to the hinge assembly one by one, and a convex hinge seat or a concave hinge seat is fixed on the articulated mounting seat.

[0011] In the above-mentioned sewing machine head mounting structure, an assembling nut is threaded onto the assembling screw, and after the fixing assembly is installed, the assembling nut is in contact connection with the bottom of the fixing mounting seat.

[0012] In the above-mentioned sewing machine head mounting structure, the fixing components are provided in plurality and surround the outer edge of the head. Preferably, the fixing components are provided in four groups, respectively located at the four corners of the outer edge of the head.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The utility model provides a sewing machine head mounting structure, wherein the head is mounted by a hinge assembly and a fixing assembly. When maintenance is required, the fixing assembly is disassembled, and then the head is flipped by the hinge assembly for maintenance. At the same time, the fixing assembly of the utility model can also adjust its height axially, and the height adjustment of the head is realized by cooperating with the hinge structure adapted thereto, so that the sewing machine is easier to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 It is an exploded view of the utility model;

[0017] Figure 3 yes Figure 2 A local enlarged view of point A;

[0018] Figure 4 yes Figure 2 A partial enlarged view of point B;

[0019] Figure 5 It is a three-dimensional diagram of the convex hinge seat of the utility model;

[0020] Figure numerals: 1. Machine head; 2. Frame; 3. Assembly screw; 4. Fastening screw; 5. Convex hinge seat; 6. Concave hinge seat; 7. Connecting pin; 8. Long groove; 9. Rubber plug; 10. Gasket; 11. Fixed mounting seat; 12. Mounting hole; 13. Articulated mounting seat; 14. Assembly nut. DETAILED DESCRIPTION

[0021] The present invention will be further described below with reference to the accompanying drawings. Figure 1-5 :

[0022] A head mounting structure of a sewing machine, wherein the head 1 is connected to a frame 2 via a fixing assembly and a hinge assembly, the fixing assembly comprising an assembling screw 3 and a fastening screw 4, the outer thread of the assembling screw 3 being axially adjustable and screwed to the frame 2, the fastening screw 4 passing through the inner hole of the assembling screw 3 and being detachably screwed and fixed to the head 1, the hinge assembly comprising a convex hinge seat 5 and a concave hinge seat 6, the convex hinge seat 5 and the concave hinge seat 6 being connected via a connecting pin 7, the convex hinge seat 5 being provided with a long slot 8 for the connecting pin 7 to move up and down.

[0023] During installation, fix the hinge assembly at the predetermined position, then screw the assembly screws 3 onto the frame 2 in sequence, and then screw the fastening screws 4 through the inner holes of the assembly screws 3 from bottom to top and screw them onto the machine head 1 to complete the installation. When maintenance is required, loosen all the fastening screws 4, the machine head 1 can be turned around the hinge assembly, and the machine head 1 can be turned over for maintenance. The maintenance status is shown in the attached figure. Figure 1 When the height of the machine head 1 needs to be adjusted, all the fastening screws 4 are loosened, and the assembly screws 3 are rotated to change their axial positions. After all the assembly screws 3 are adjusted to the predetermined positions in turn, the fastening screws 4 are tightened again. At this time, the connecting pin 7 moves up and down in the long slot 8 to the corresponding position, and the adjustment is completed.

[0024] In order to provide shock absorption and buffering performance, a rubber plug 9 is provided above the assembly screw 3, and a gasket 10 is provided below. After the fixing assembly is installed, the rubber plug 9 is in contact with the machine head 1, and the gasket 10 is in contact with the head of the fastening screw 4. Further, when the fixing assembly is installed, the rubber plug 9 and the gasket 10 are both sleeved on the fastening screw 4.

[0025] In this embodiment, the hinge assembly is arranged at the rear side of the machine head 1, and there are more than two sets of the hinge assembly, preferably, there are two sets of the hinge assembly. When repairing, the machine head 1 can be turned backwards.

[0026] Furthermore, the convex hinge seat 5 is fixedly mounted on the rear plane of the machine head 1 , and the concave hinge seat 6 is fixedly mounted on the frame 2 .

[0027] In order to make the movement adjustment of the connecting pin 7 adapt to the movement adjustment of the assembling screw 3 , the movement stroke of the connecting pin 7 in the long slot 8 is consistent with the axial adjustment stroke of the assembling screw 3 .

[0028] Compare with Figure 2The specific installation structure of the fixed assembly and the hinge assembly with the frame 2 in this embodiment is: the frame 2 is provided with a fixed mounting seat 11 corresponding to the fixed assembly one by one, and the fixed mounting seat 11 is provided with a mounting hole 12 screwed with the assembly screw 3; the frame 2 is provided with a hinge mounting seat 13 corresponding to the hinge assembly one by one, and the convex hinge seat 5 or the concave hinge seat 6 is fixed on the hinge mounting seat 13.

[0029] The assembly screw 3 is threaded with an assembly nut 14. After the fixing assembly is installed, the assembly nut 14 is in contact with the bottom of the fixing mounting seat 11. After the assembly screw is adjusted to a predetermined position, the assembly nut 14 is screwed to move upward to a position in contact with the bottom of the fixing mounting seat 11. The assembly nut 14 can provide a certain axial limit and tightening effect, so that the assembly screw is stably installed at the predetermined position.

[0030] In order to better fix the machine head 1, a plurality of fixing components are provided, and they surround the outer edge of the machine head 1. In this embodiment, four groups of fixing components are provided, which are respectively located at the four corners of the outer edge of the machine head 1.

[0031] The above embodiments are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A head mounting structure of a sewing machine, characterized in that: The machine head (1) is connected to the frame (2) via a fixing assembly and an articulation assembly. The fixing assembly comprises an assembling screw (3) and a fastening screw (4). The external thread of the assembling screw (3) is axially adjustable and screwed to the frame (2). The fastening screw (4) passes through the inner hole of the assembling screw (3) and is detachably screwed and fixed to the machine head (1). The articulation assembly comprises a convex hinge seat (5) and a concave hinge seat (6). The convex hinge seat (5) and the concave hinge seat (6) are connected via a connecting pin (7). The convex hinge seat (5) is provided with a long slot (8) for the connecting pin (7) to move up and down.

2. The head mounting structure of a sewing machine according to claim 1, characterized in that: A rubber plug (9) is arranged above the assembly screw (3), and a gasket (10) is arranged below the assembly screw. After the fixing assembly is installed, the rubber plug (9) is in contact with the machine head (1), and the gasket (10) is in contact with the head of the fastening screw (4).

3. The head mounting structure of a sewing machine according to claim 1, characterized in that: The hinge assembly is arranged on the rear side of the machine head (1), and there are more than two sets of the hinge assembly.

4. The head mounting structure of a sewing machine according to claim 3, characterized in that: The convex hinge seat (5) is fixedly mounted on the rear plane of the machine head (1), and the concave hinge seat (6) is fixedly mounted on the frame (2).

5. The head mounting structure of a sewing machine according to claim 1, characterized in that: The moving stroke of the connecting pin (7) in the long slot (8) is consistent with the axial adjustment stroke of the assembly screw (3).

6. The head mounting structure of a sewing machine according to claim 1, characterized in that: The frame (2) is provided with a fixed mounting seat (11) corresponding to the fixed assembly one by one, and the fixed mounting seat (11) is provided with a mounting hole (12) screwed with an assembly screw; the frame (2) is provided with an articulated mounting seat (13) corresponding to the articulated assembly one by one, and a convex hinge seat (5) or a concave hinge seat (6) is fixed on the articulated mounting seat (13).

7. The head mounting structure of a sewing machine according to claim 6, characterized in that: An assembling nut (14) is threaded onto the assembling screw (3); after the fixing assembly is installed, the assembling nut (14) is in contact with the bottom of the fixing mounting seat (11).

8. The head mounting structure of a sewing machine according to claim 1, characterized in that: The fixing components are provided in plurality and surround the outer edge of the machine head (1).

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