Portable sewing machine shield structure

Abstract

The utility model discloses a portable sewing machine shield structure, including the body and the needle of being located at the body, the body on near needle can overturnly be equipped with the shield, the needle is exposed under the shield being in the open state, the needle is located in the shield under the shield being in the closed state. Compared with prior art, the utility model simple structure, convenient operation, not easy to lose.

Description

Technical Field

[0001] This utility model relates to the field of sewing machines, specifically to a portable sewing machine cover structure. Background Technology

[0002] A sewing machine is a machine that uses one or more sewing threads to create one or more stitches on fabric, weaving or sewing together one or more layers of fabric. Sewing machines can sew fabrics such as cotton, linen, silk, wool, and synthetic fibers, as well as products made of leather, plastic, and paper. They produce neat, beautiful, flat, and strong stitches, and are fast and easy to use. This has led to the development of art forms such as hand-pressed embroidery and computer embroidery. The use of sewing machines is becoming increasingly widespread, no longer limited to clothing production; many fashion design enthusiasts use portable sewing machines in their daily lives.

[0003] In existing portable sewing machines, the needle bar mechanism and other components below the sewing head are exposed during operation. These moving parts reciprocate at high speeds during sewing, and their metal edges often have sharp edges or burrs. When the machine is not in use, operators or people nearby are highly susceptible to injury from accidental contact with the needle bar area, posing a significant safety hazard. This risk is particularly pronounced in home sewing settings, where users may frequently come into contact with the area around the machine.

[0004] While there are existing designs for protective covers for the needle bar mechanism of sewing machines, most of them adopt a detachable closed structure. The cover needs to be removed when using the sewing machine, which is not only cumbersome to install and remove, but also hinders the convenience of daily maintenance. For example, Chinese utility model patent application number CN20621765778.8 (authorization announcement number CN217536356U) discloses a safety protection mechanism for a sewing machine, including a sewing machine body and a protective cover. The sewing machine body has a machine head with a downwardly extending needle bar. A needle is located at the bottom of the needle bar. The side of the protective cover has a first opening for the needle bar to enter, and the bottom of the protective cover has a second opening for the needle to pass through. The upper end of the protective cover has several hooks, and the upper end of each hook has an outwardly protruding locking block. The bottom of the machine head has a clearance notch for the hooks to extend upward, and one side of the clearance notch has a support part for supporting the locking block. During assembly, the protective cover is detachably connected to the machine head by hooks engaging with the corresponding clearance notches, and the protective cover surrounds the outside of the needle bar. Although the detachable protective cover of this utility model provides protection, the disassembly and assembly steps are cumbersome and inconvenient.

[0005] Therefore, the protective structure of existing portable sewing machines needs to be improved. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a portable sewing machine cover structure that is easy to operate, in view of the above-mentioned technical status.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a portable sewing machine cover structure, including a machine body and a needle disposed on the machine body, characterized in that: a cover is disposed on the machine body near the needle that can be rotated;

[0008] With the protective cover in the open position, the aforementioned needle is exposed;

[0009] When the protective cover is closed, the aforementioned needle is located inside the protective cover.

[0010] To facilitate the display of the protective cover's status and to remind the user, preferably, the machine body is equipped with a sensor and a control device; the control device and the sensor detect the open or closed state of the protective cover; the control device controls the sewing machine's operating state based on the sensor's detection results.

[0011] With the protective cover in the open state, the control device controls the sewing machine to be in the threading state;

[0012] When the protective cover is closed, the control device controls the sewing machine to be in working condition.

[0013] Preferably, the sensor includes:

[0014] The support frame is mounted on the machine body;

[0015] A limit switch, mounted on a bracket, senses the open or closed state of the protective cover. The control device controls the sewing machine's operating state based on the limit switch's sensing result. The bracket is fixed to the sewing machine and does not rotate with the protective cover.

[0016] Preferably, the protective cover comprises:

[0017] The connecting plate has a clearance opening in the middle to avoid the sewing machine needle;

[0018] The cover is disposed on the connecting plate;

[0019] A pin is rotatably connected to the sewing machine and is mounted on the connecting plate.

[0020] To enable the rotating connection of the protective cover, preferably, the protective cover structure further includes:

[0021] A rotating base is provided on the sewing machine, and the pin is rotatably connected to the sewing machine through the rotating base.

[0022] To conceal the needle, the cover is preferably C-shaped in cross-section. The C-shaped cover positions other structures of the needle attachment within the opening of the cover, enclosing the needle within the cover and the sewing machine structure, thus reducing exposure and minimizing the risk of injury to operators from accidental contact with the top rod area. Furthermore, the C-shaped cover occupies minimal space on the sewing machine head attachments when rotating, simplifying the rotation operation and balancing the ease of opening and closing the cover with the degree of needle concealment.

[0023] Preferably, the cover includes:

[0024] substrate;

[0025] The arm plate has two parts, each located on one side of the base plate; the arm plate furthest from the pin has a clearance groove. When installing bolts, the bolt-installing tool can be inserted into the cover through the clearance groove, thereby facilitating the bolt installation operation.

[0026] To prevent the protective cover from colliding with the machine needle, preferably, the protective cover further includes:

[0027] A thread stop hook is provided on the connecting plate and is at least partially located in the clearance opening; the thread stop hook has a recess for avoiding the sewing machine needle.

[0028] To prevent the shield from rotating when it is in the closed state, preferably,

[0029] The top of the connecting plate has a limiting groove;

[0030] The sensor is equipped with a spring-loaded tab. The spring-loaded tab is elastic and has one end attached to the sensor and the other end located in a limiting groove. The elasticity of the spring-loaded tab allows the operator to overcome the locking force between the spring-loaded tab and the limiting groove, thereby rotating the protective cover and changing its state.

[0031] Compared with the prior art, the advantages of this utility model are as follows: the cover is rotatably mounted on the sewing machine, and the sewing machine needle is not exposed when closed, so the operator or people around are less likely to be injured by accidentally touching the top rod area, thus reducing safety hazards; rotating the cover can put the cover in the open or closed state, which is simple and convenient to operate; and the cover can be switched between the open and closed states without disassembly, making it less likely to be lost. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0033] Figure 2 This is a schematic diagram of the structure of an embodiment (excluding the body).

[0034] Figure 3 for Figure 2 A structural diagram from another direction;

[0035] Figure 4 This is a schematic diagram of the connecting plate in the embodiment;

[0036] Figure 5 This is a schematic diagram of the cover structure in an embodiment;

[0037] Figure 6 This is a schematic diagram of the open state in an embodiment. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0039] like Figure 1-6 The diagram shows a preferred embodiment of the present invention. A portable sewing machine cover structure includes a body 100, a cover 1, a sensor 2, a rotating base 4, a spring 5, and a control device 7.

[0040] The protective cover 1 is rotatably mounted on the machine body 100; the protective cover 1 includes a connecting plate 11, a cover body 12, and a wire-blocking hook 13; the connecting plate 11 forms a clearance opening 111 in the middle to avoid the needles 101 of the machine body 100, such as Figure 4 As shown, the top of the connecting plate 11 has a limiting groove 112, and the connecting groove is also provided with a snap-fit ​​groove 113 corresponding to the pin 3; the cover 12 is provided on the connecting plate 11; the cross-section of the cover 12 is "C" shaped. Figure 5 As shown, the cover 12 includes a base plate 121 and arm plates 122. Two arm plates 122 are respectively located on both sides of the base plate 121; the arm plate 122 away from the pin 3 has a clearance groove 123. A wire-stopping hook 13 is provided on the connecting plate 11 and is at least partially located in the clearance opening 111; the wire-stopping hook 13 has a recess 131 that avoids the needle 101 of the machine body 100. The pin 3 is rotatably connected to the machine body 100 and is provided on the connecting plate 11.

[0041] Sensor 2 is mounted on the body 100; sensor 2 includes a bracket 21 and a limit switch 22. The bracket 21 is mounted on the body 100; the limit switch 22 is mounted on the bracket 21, and the limit switch 22 is fixed on the body 100 through the bracket 21 and electrically connected to the control device 7. After sensing the open or closed state of the protective cover 1, the limit switch 22 outputs a signal to the control device 7.

[0042] The rotating seat 4 is fixedly mounted on the machine body 100. The pin 3 is rotatably connected to the machine body 100 through the rotating seat 4. The bolt 31 is located in the snap-fit ​​groove 113, so that the connecting plate 11 and the pin 3 are fixedly connected by the bolt 31, thereby making the protective cover 1 rotatably connected to the sewing machine. When installing the bolt 31, the tool for installing the bolt 31 can be inserted into the protective cover 1 through the clearance groove 123, thereby facilitating the installation operation of the bolt 31 and fixing the bolt 31.

[0043] The spring 5 is elastic and one end is located on the bracket 21 of the sensor 2, and the other end is located in the limiting groove 112.

[0044] The control device 7 is located on the machine body 100. The control device 7 is electrically connected to the limit switch 22. The control device 7 controls the working state of the sewing machine according to the sensing result of the limit switch 22.

[0045] The protective cover 1 rotates around the pin 3 as the pivot, thus being in an open or closed state.

[0046] like Figure 6 As shown, the protective cover 1 is in the open state, and the needle 101 of the machine body 100 is exposed; after the limit switch 22 senses the opening of the protective cover 1, it outputs a signal, and after the control device 7 receives the signal, it controls the sewing machine to be in the threading state. In this state, the sewing machine stops; at this time, the spring 5 disengages from the connecting groove 112.

[0047] like Figure 1 As shown, when the cover 1 is in the closed state, the needle 101 of the machine body 100 is not exposed. After the limit switch 22 senses the closed state of the cover 1, it outputs a signal. After receiving the signal, the control device 7 controls the sewing machine to be in the working state. At this time, one end of the spring piece 5 is located in the connecting groove 112, so that the spring piece 5 is engaged with the connecting groove 112, so that the cover 1 will not rotate in the closed state, thus exposing the needle 101.

Claims

1. A portable sewing machine cover structure, comprising a machine body (100) and a needle (101) disposed on the machine body (100), characterized in that: The machine body (100) is provided with a protective cover (1) that can be rotated near the needle (101); The machine body (100) is equipped with a sensor (2) and a control device (7); the control device (7) is electrically connected to the sensor (2), and the sensor (2) senses the open or closed state of the protective cover (1); the control device (7) controls the working state of the sewing machine according to the sensing result of the sensor (2): When the protective cover (1) is in the open state, the aforementioned needle (101) is exposed; the control device (7) controls the sewing machine to be in the threading state; When the protective cover (1) is in the closed state, the aforementioned needle (101) is located inside the protective cover; the control device (7) controls the sewing machine to be in the working state.

2. The portable sewing machine cover structure according to claim 1, characterized in that: The sensor (2) includes: A bracket (21) is mounted on the body (100); Limit switch (22) is mounted on bracket (21) and electrically connected to control device (7). Limit switch (22) senses the open or closed state of protective cover (1). Control device (7) controls the working state of sewing machine according to the sensing result of limit switch (22).

3. The portable sewing machine cover structure according to claim 1, characterized in that: The protective cover (1) includes: The connecting plate (11) forms a clearance opening (111) for avoiding the needle (101); The cover (12) is disposed on the connecting plate (11); and, The pin (3) is rotatably connected to the body (100) and is located on the connecting plate (11).

4. The portable sewing machine cover structure according to claim 3, characterized in that: The body (100) is provided with a rotating seat (4); the pin (3) is rotatably connected to the body (100) through the rotating seat (4).

5. The portable sewing machine cover structure according to claim 3, characterized in that: The cross-section of the cover (12) is "C" shaped.

6. The portable sewing machine cover structure according to claim 5, characterized in that: The cover (12) includes: substrate(121); Arm plate (122), having two respectively located on both sides of base plate (121); bolt (31) for connecting pin (3) and connecting plate (11); the arm plate (122) away from the pin (3) has clearance groove (123) for facilitating the installation of bolt (31).

7. The portable sewing machine cover structure according to claim 3, characterized in that: The connecting plate (11) is provided with a line-stopping hook (13), which is at least partially located in the clearance opening (111) and has a recess (151) for avoiding the needle (101).

8. The portable sewing machine cover structure according to claim 3, characterized in that: The connecting plate (11) has a limiting groove (112) at the top; the sensor (2) is provided with a spring piece (5); the spring piece (5) is elastic and one end is located in the limiting groove (112).

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