Portable sewing machine operation reminding structure

Abstract

The utility model discloses a portable sewing machine operation reminding structure, including machine body, presser foot assembly, needle bar first inductor and first prompt part, be equipped with the presser foot assembly and needle bar of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of portable sewing machine of the machine body, the presser foot assembly is in the upper state, the presser foot assembly restricts needle bar movement, the presser foot assembly is in the state of down pressure, the presser foot assembly is separated from the state of restricting needle bar movement, and portable sewing machine is in the working condition, and first inductor is used for inducting the position of presser foot assembly, the first prompt part exports prompt information according to first inductor sensing result under the down pressure state or the upper state of presser foot assembly. Compared with prior art, the utility model can prompt the state of each part of portable sewing machine, thereby reminding the operator to carry out correct operation.

Description

Technical Field

[0001] This utility model relates to the field of portable sewing machines, specifically to a portable sewing machine operation reminder 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] Traditional sewing machine operation relies primarily on the operator's experience, attention, and visual observation of the machine's status (such as indicator lights and machine positions). However, in actual production environments, especially when facing complex processes, long periods of continuous operation, or the need to operate multiple machines simultaneously, operators inevitably overlook or forget critical steps. For example, forgetting to lower the presser foot before starting to sew can lead to incorrect fabric feeding, causing thread tangles or broken needles; attempting to move the fabric without lifting the presser foot can damage the fabric or bend the needle; failing to change the bobbin thread in time when it needs to be changed can interrupt the sewing process. Such operational errors not only reduce production efficiency and increase the defect rate but can also accelerate equipment wear and even cause safety accidents.

[0004] In the prior art, some sewing machines have some basic prompting functions, such as warning lights or sound alerts for insufficient bobbin thread. For example, Chinese invention application No. 202410733846.X (publication number CN118497986A) discloses an automatic bobbin thread balance detection device for sewing machines, including a sewing machine body, an LCD controller on the sewing machine body, a bobbin winding assembly on the LCD controller, a base connected to the lower side of the sewing machine body, a cover plate installed on the base, a card connected to the lower side of the cover plate, a probe connected to the lower side of the card, a bobbin core installed under the cover plate, a bobbin case covering the front side of the bobbin core, and an audible and visual alarm light connected to the LCD controller. The controller of this application can set the alarm value and the stop value for the remaining number of bobbin core rotations. It calculates the current real-time rotation number of the bobbin core by collecting data from the bobbin core monitoring probe, and activates the audible and visual alarm when the alarm value is reached. However, this application only provides a prompt for insufficient bobbin thread balance and lacks a mechanism for reminding other operating steps and state transitions of the sewing machine.

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

[0006] The technical problem to be solved by this utility model is to provide a sewing machine operation reminder structure in view of the above-mentioned technical status, which can indicate the working status of a portable sewing machine.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a portable sewing machine operation reminder structure, including a presser foot assembly and a needle bar; the presser foot assembly and the needle bar are both vertically mounted on the machine body;

[0008] When the presser foot assembly is in the lifted state, the presser foot assembly is no longer in a state that restricts the movement of the needle bar;

[0009] When the presser foot assembly is in the pressed-down state, the presser foot assembly is disengaged from the needle bar, and the portable sewing machine is in working condition; characterized in that: the machine body is provided with a first sensor and a first prompting component; the first sensor and the first prompting component are electrically connected; the first sensor is used to sense the position of the presser foot assembly, and the first prompting component outputs prompting information based on the sensing result of the first sensor.

[0010] In order to sense the position of the cover and thus facilitate threading, preferably, the machine body is provided with a second sensor, a second prompting element and a cover rotatably mounted on the machine body;

[0011] The second sensor is used to sense the position of the cover; the second prompting device is electrically connected to the second sensor and outputs prompting information based on the sensing result of the second sensor.

[0012] In order to sense the working status of the transmission device, preferably, the machine body is provided with a third sensor, a third prompting element and a transmission device;

[0013] The third sensor is used to sense the working status of the transmission device;

[0014] The third prompt device is electrically connected to the third sensor and outputs prompt information based on the sensor's sensing results.

[0015] To facilitate the output of prompting information, preferably, the first prompting device, the second prompting device, and the third prompting device are all warning devices capable of emitting sound and light signals.

[0016] Preferably, the transmission device is provided with a baffle plate that rotates with the transmission device, and the baffle plate has a recess; the third sensor senses the rotation of the baffle plate through the recess, thereby sensing the working state of the transmission device.

[0017] In order to sense the position of the needle bar by sensing the working state of the transmission device, preferably, the needle bar is vertically mounted on the machine body; the needle bar is connected to the transmission device; when the needle bar is at the top, the third sensor senses the recess of the baffle.

[0018] Preferably, the machine body is further provided with a control device;

[0019] The control device is electrically connected to the first sensor, the second sensor, the third sensor, the first prompting device, the second prompting device, and the third prompting device, and controls the first prompting device, the second prompting device, and the third prompting device to output prompt information according to the sensing results of the first sensor, the second sensor, and the third sensor.

[0020] Preferably, when the cover is closed, the pressure foot assembly is lifted to cause the first prompting element to output a prompting message;

[0021] When the cover is open, the second indicator outputs a prompt message; when the presser foot assembly is pressed down, the first indicator outputs a prompt message; when the needle bar is in a non-top position, the third indicator outputs a prompt message. When the cover is closed, the sewing machine can operate; lifting the presser foot assembly will obstruct the movement of the portable sewing machine's needle bar. When the cover is open, the operator needs to thread the sewing machine and disable it; the pressed-down state of the presser foot assembly does not obstruct the movement of the sewing machine's needle bar.

[0022] Compared with the prior art, the advantages of this utility model are as follows: the first sensor can sense the position of the presser foot assembly; when the presser foot assembly is in the pressed-down or lifted state, the first prompting component outputs prompting information based on the sensing result of the first sensor, thereby indicating the state of the presser foot assembly, which facilitates prompting the operator to operate, reduces operational errors, reduces safety hazards, and prevents the operator from starting a sewing machine that cannot work when the presser foot assembly is lifted, thus avoiding mechanical damage caused by improper operation and reducing wear and tear on the portable sewing machine. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of an embodiment;

[0024] Figure 2 This is a schematic diagram of the internal structure of an embodiment;

[0025] Figure 3 This is a schematic diagram of the baffle structure in the embodiment;

[0026] Figure 4 This is a schematic diagram of the assembly of the second sensor and the bracket in the embodiment. Detailed Implementation

[0027] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0028] like Figure 1-4The diagram shows a preferred embodiment of the present invention. The portable sewing machine operation reminder structure includes a first sensor 1, a first reminder component 11, a second sensor 2, a second reminder component 21, a third sensor 3, a third reminder component 31, and a control device 4.

[0029] like Figure 2 As shown, the machine body 100 is equipped with a liftable presser foot assembly 101 and a needle bar 104, and a cover 102 is rotatably or detachably provided. A transmission device 103 is provided inside the machine body 100. A baffle 1031, which rotates with the transmission device 103, is provided on the transmission device 103, and the baffle 1031 has a recess 1032. The needle bar 104 is connected to the transmission device 103. When the needle bar 104 is at its top position, a third sensor 3 senses the recess 1032 of the baffle 1031. The third sensor 3 senses the working state of the transmission device 103 by sensing the rotation of the baffle 1031, thereby sensing the lifting position of the needle bar 104. A drive device 105 is provided inside the machine body 100, which is connected to the transmission device 103 and drives the needle bar 104 to move up and down via the transmission device 103.

[0030] The presser foot assembly 101 includes a presser foot lever 1011, a presser foot 1012, and a handle 1013. The presser foot lever 1011 is parallel to the needle bar 104. The presser foot 1012 is located at the bottom of the presser foot lever 1011 and moves up and down together with the presser foot lever 1011. The handle 1013 is connected to the presser foot lever 1011 for transmission, thereby controlling the lifting and pressing down of the presser foot lever 1011. When the presser foot assembly 101 is in the lifted state, the presser foot 1012 is lifted, thereby blocking the needle bar 104 from moving down. The needle bar 104 cannot achieve the lifting and lowering movement required for sewing, and the machine body 100 cannot work normally. When the presser foot assembly 101 is in the pressed state, the presser foot 1012 presses down on the fabric on the machine body 100, the needle bar 104 can move up and down normally, and the machine body 100 can work normally.

[0031] The first sensor 1 is used to sense the position of the presser foot assembly 101. When the presser foot assembly 101 is pressed down or lifted, the first indicator 11 outputs a prompt message based on the sensing results of the first sensor 1 and the second sensor 2. The second sensor 2 is used to sense the position of the cover 102. The second sensor 2 is mounted on the body 100 via a bracket 22 for connecting the sensor 23 and the body 100. The second indicator 21 is electrically connected to the second sensor 2 and outputs a prompt message based on the sensing results of the second sensor 2. The third sensor 3 is used to sense the working state of the transmission device 103 and outputs a signal. The third indicator 31 outputs a prompt message based on the sensing results of the second sensor 2 and the third sensor 3. The first indicator 11, the second indicator 21, and the third indicator 31 are all warning devices capable of emitting audible and visual signals. When the first indicator 11, the second indicator 21, and the third indicator 31 output prompt messages, the warning devices illuminate and emit a voice prompt. The first sensor 1 and the second sensor 2 are limit switches. The third sensor 3 is a laser sensor, which senses the rotational state of the baffle 1031 by blocking the laser beam. For example... Figure 1 As shown, the first prompting element 11, the second prompting element 21 and the third prompting element 31 are all provided on the body 100.

[0032] like Figure 1 As shown, the control device 4 is mounted on the body 100 and is electrically connected to the first sensor 1, the second sensor 2, the third sensor 3, the first prompting element 11, the second prompting element 21, and the third prompting element 31. The first sensor 1, the second sensor 2, and the third sensor 3 output sensing signals to the control device 4. The control device 4 controls the first prompting element 11, the second prompting element 21, and the third prompting element 31 to output prompt information based on the sensing results of the first sensor 1, the second sensor 2, and the third sensor 3.

[0033] Portable sewing machines have at least two of the following states:

[0034] (1) Threading status:

[0035] With the cover 102 in the open state, the operator can thread the needle onto the machine body 100. At this time, there is no need for a portable sewing machine to perform sewing work. The presser foot assembly 101 is lifted, which opens the thread clamping device of the presser foot assembly 101 to facilitate threading. The needle bar 104 is stopped and the needle bar 104 must be in the top position to allow the operator enough space to thread the needle.

[0036] Therefore, in this state, the second prompting element 21 outputs a prompt message; the presser foot assembly 101 presses down, causing the first prompting element 11 to output a prompt message; the needle bar 104 is in a non-top state, causing the third prompting element 31 to output a prompt message. When the third sensor 3 senses the recess 1032 of the baffle 1031, that is, when the needle bar 104 is in the top state, the third prompting element 31 does not output a prompt message.

[0037] (2) Working status:

[0038] When the cover 102 is closed, the second prompting device 21 does not output any prompting information; the sewing operation of the portable sewing machine requires the presser foot 101 to press down, thereby pressing down the fabric and allowing the needle bar 104 to move up and down; when the portable sewing machine is working, the needle bar 104 moves up and down, and the baffle 1031 rotates continuously.

[0039] Therefore, in this state, the second prompt 21 and the third prompt 31 do not output prompt information, and the pressure foot assembly 101 is lifted so that the first prompt 11 outputs prompt information.

Claims

1. A portable sewing machine operation reminder structure, comprising a machine body (100), a presser foot assembly (101), and a needle bar (104); wherein the presser foot assembly (101) and the needle bar (104) are both flexibly mounted on the machine body (100); When the presser foot assembly (101) is in the lifted state, the presser foot assembly (101) restricts the movement of the needle bar (104); When the presser foot assembly (101) is in the pressed-down state, the presser foot assembly (101) is released from the state of restricting the movement of the needle bar (104), and the portable sewing machine is in the working state; Its features are: The body (100) is provided with a first sensor (1) and a first prompting element (11); the first sensor (1) and the first prompting element (11) are electrically connected; the first sensor (1) is used to sense the position of the presser foot assembly (101), and the first prompting element (11) outputs prompting information according to the sensing result of the first sensor (1).

2. The portable sewing machine operation reminder structure according to claim 1, characterized in that: The body (100) is provided with a second sensor (2), a second prompting element (21) and a cover (102) rotatably mounted on the body (100); The second sensor (2) is used to sense the position of the cover (102); the second prompting device (21) is electrically connected to the second sensor (2) and outputs prompting information according to the sensing result of the second sensor (2).

3. The portable sewing machine operation reminder structure according to claim 2, characterized in that: The body (100) is provided with a third sensor (3), a third prompting element (31), a drive device (105) and a transmission device (103); the drive device (105) drives the needle bar (104) to move up and down through the transmission device (103); The third sensor (3) is used to sense the working status of the transmission device (103); The third prompting device (31) is electrically connected to the third sensor (3) and outputs prompting information based on the sensing result of the third sensor (3).

4. The portable sewing machine operation reminder structure according to claim 3, characterized in that: The first prompting device (11), the second prompting device (21) and the third prompting device (31) are all warning devices that can emit sound and light signals.

5. The portable sewing machine operation reminder structure according to claim 3, characterized in that: The transmission device (103) is provided with a baffle (1031) that rotates with the transmission of the transmission device (103). The baffle (1031) is provided with a recess (1032). The third sensor (3) senses the rotation of the baffle (1031) through the recess (1032), thereby sensing the working state of the transmission device (103).

6. The portable sewing machine operation reminder structure according to claim 5, characterized in that: When the needle bar (104) is in the top position, the third sensor (3) senses the recess (1032) of the baffle (1031).

7. The portable sewing machine operation reminder structure according to claim 6, characterized in that: The body (100) is also equipped with a control device (4); The control device (4) is electrically connected to the first sensor (1), the second sensor (2), the third sensor (3), the first prompt (11), the second prompt (21), and the third prompt (31), and controls the first prompt (11), the second prompt (21), and the third prompt (31) to output prompt information according to the sensing results of the first sensor (1), the second sensor (2), and the third sensor (3).

8. The portable sewing machine operation reminder structure according to claim 7, characterized in that: When the cover (102) is closed, the pressure foot assembly (101) is lifted so that the first prompting element (11) outputs a prompting message; When the cover (102) is open, the second prompting element (21) outputs a prompting message; the presser foot assembly (101) is pressed down, causing the first prompting element (11) to output a prompting message; when the needle bar (104) is in a non-top state, the third prompting element (31) outputs a prompting message.

Images