Normal sewing machine shell with auxiliary device
By integrating auxiliary devices on the housing of the flat seam machine, using the roller and motor to pull the fabric at a constant speed, the needle breakage problem caused by excessive force by novices is solved, the safety and stability of sewing are increased, and adapted through adjustment and fixing structure. Different fabric thicknesses and storage requirements.
Patent Information
- Application Number
- CN202420951409.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-30
AI Technical Summary
When sewing longer fabrics using flat seam machines, novices are prone to stretching and bending the fabrics due to excessive force, which will cause the needle to break. Especially because the needle holes on the bottom plate of the flat seam machine are small, it makes it difficult to accurately match the needles. Accurately and hit the pinhole, causing the problem of breaking the needle.
Design a flat seam housing with auxiliary devices, including a roller and a motor. The roller rotates slowly through the motor to pull the fabric at a constant speed, reducing the pulling and bending needles when newbies pull the fabric, increasing the safety of the needle, and adjusting it The mechanism and the fastening structure adapt to fabrics of different thicknesses, and the fixed structure and storage structure optimize the use and storage of the device.
It effectively reduces the needle breakage caused by the flex needle during the sewing process, increases the safety and stability of sewing, and optimizes the space occupation and operation convenience of the device.
Smart Images
Figure CN222205672U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of lockstitch sewing machines, in particular to a lockstitch sewing machine housing with an auxiliary device. Background Art
[0002] The lockstitch sewing machine is a machine that uses a sewing thread to form a seam on the fabric to interweave or sew one or more layers of fabric together. The head of the lockstitch sewing machine is composed of four mechanisms: piercing, hooking, picking up, and feeding, and auxiliary mechanisms such as winding, pressing, and dropping teeth. The movements of each mechanism are reasonably coordinated and work in a cycle to sew the fabric together.
[0003] When using a flat-bed sewing machine to sew a long piece of fabric, the left and right hands are generally used to pull the fabric in the direction of sewing so that the fabric moves along the sewing direction. However, novices will inevitably unconsciously pull the fabric with a large force during the sewing process, causing the fabric to be stretched and the needle to bend. Since the needle hole on the bottom plate of the flat-bed sewing machine is small, the needle in a bent state is difficult to align with the needle hole and enter, and the needle hits the bottom plate next to the needle hole, causing the needle to break. Utility Model Content
[0004] The present application provides a lockstitch sewing machine housing with an auxiliary device, which has the effect of pulling fabric at a uniform speed and reducing the bending of the needle head and causing the needle to break.
[0005] The present application provides a lockstitch sewing machine housing with an auxiliary device, which adopts the following technical solution:
[0006] A flat sewing machine housing with an auxiliary moving device includes a flat sewing machine housing and an auxiliary device, wherein the auxiliary device is arranged on the side surface of one end of the flat sewing machine housing, the auxiliary device includes a roller and a motor, the roller is sleeved on both sides of the motor, the motor is used to drive the roller to rotate slowly, and the roller is used to abut against the cloth.
[0007] Through the above technical solution, when a novice is sewing a longer piece of cloth, the auxiliary device can be used instead to pull the cloth forward. Since the motor is used to rotate the drum at a constant speed to drive the cloth to move, the situation where the novice bends the needle when pulling the cloth, causing the needle to hit the bottom plate and break the needle is reduced, thereby increasing safety.
[0008] Preferably, an adjustment mechanism is also included, which includes an extension structure and a clamping structure, the extension structure includes a support rod and a sleeve, one end of the sleeve is rotated on the sewing machine housing through a rotating shaft, and the other end of the sleeve is sleeved on the outside of the support rod, the support rod slides in the sleeve, and the end of the support rod away from the sleeve is fixed on the motor, and the clamping structure is used to abut the roller against the cloth.
[0009] Through the above technical solution, the support rod can be lowered at any time through the movement of the sleeve and the rotating shaft to assist in pulling the cloth, and the support rod can slide in the sleeve to adjust its length, so that it will not occupy a large space when stored.
[0010] Preferably, the rotating shaft is arranged outside the housing of the sewing machine, and the rotating shaft is arranged close to the sewing needle.
[0011] Through the above technical solution, the rotating shaft is arranged near the sewing needle and the auxiliary device is arranged near one end of the sewing needle, which can reduce the bending of the cloth when the roller pulls the cloth and increase the stability during operation.
[0012] Preferably, the tightening structure includes a spring and a retaining plate, wherein the retaining plate is arranged in the sleeve, the retaining plate is located below the rotating shaft, and both ends of the spring are respectively arranged on the retaining plate and the supporting rod, and the spring always maintains a telescopic state.
[0013] Through the above technical solution, the spring enables the support rod to move in the direction of exiting the sleeve, so that the support rod can be pressed against the cloth during operation to adapt to the sewing conditions of cloths of different thicknesses.
[0014] Preferably, a fixing structure is also included, which includes an insertion rod, and the sleeve and the support rod are provided with a first through hole and a second through hole on one side close to one end of the motor. When the support rod slides into the sleeve until the first through hole and the second through hole overlap, the insertion rod can be inserted into the second through hole through the first through hole.
[0015] Through the above technical solution, when rotating and storing, in order to reduce the space occupied by the adjustment mechanism, the position of the support rod is fixed by inserting the insertion rod into the first through hole and the second through hole, so that the support rod will not be pushed out by the spring after moving into the sleeve. At the same time, this fixing structure is simple and easy for operators to operate.
[0016] Preferably, a storage structure is also included, which includes a storage plate and a latch, the storage plate is fixed on the end of the sleeve facing the sewing machine housing, the storage plate is provided with an opening, and the sewing machine housing is provided with a latch hole, when the adjustment mechanism drives the auxiliary device to rotate 90 degrees through the rotating shaft, the opening and the latch hole coincide, and the latch can be inserted into the latch hole through the opening.
[0017] Through the above technical solution, when rotating for storage, the adjustment mechanism and the auxiliary device can be fixed to one side of the sewing machine housing by a latch to reduce the situation where the adjustment mechanism and the auxiliary device automatically release the storage state.
[0018] Preferably, a hanging rope is provided on one side of the insertion rod, and the hanging rope is used to hang the insertion rod on the latch pin during work.
[0019] Through the above technical solution, the design of the lanyard allows the insertion rod to be hung on the latch pin when the auxiliary device is working, thereby reducing the possibility of the insertion rod being lost.
[0020] Preferably, a friction layer is provided on the outer side of the drum, and motor switches are provided on both sides of the drum respectively, and the motor switches on both sides drive the motor to rotate forward and reverse respectively.
[0021] Through the above technical solution, the design of the friction layer can increase the friction between the drum and the fabric, so that the drum can better drive the fabric to move, and the design of the motor switch driving the motor forward and reverse rotation allows the operator to use auxiliary devices to assist the backstitch operation when sewing larger fabrics.
[0022] The technical effects of this utility model are mainly reflected in the following aspects:
[0023] 1. The utility model reduces the situation where the needle is bent when the novice pulls the cloth, causing the needle to hit the bottom plate and break the needle, and increases safety by designing an auxiliary device;
[0024] 2. The utility model provides a tightening structure so that the support rod can be pressed against the fabric during operation to adapt to the sewing of fabrics of different thicknesses;
[0025] 3. The utility model designs a fixing structure and a storage structure so that the adjustment mechanism does not occupy a large space when stored, and the operator can decide whether to use the auxiliary device according to the situation. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 This is a schematic diagram of the overall structure of the embodiment of the present application when stored;
[0027] Figure 2 This is a schematic diagram of the overall structure of the embodiment of the present application when working;
[0028] Figure 3 It is a schematic diagram of the overall structure of the tightening structure in the embodiment of the present application.
[0029] Figure numerals: 1. sewing machine housing; 11. latch hole; 2. auxiliary device; 21. roller; 211. friction layer; 22. motor; 221. motor switch; 3. adjustment mechanism; 31. extension structure; 311. support rod; 312. first through hole; 313. sleeve; 314. second through hole; 32. tightening structure; 321. spring; 322. abutment plate; 4. rotating shaft; 5. fixing structure; 51. insertion rod; 511. hanging rope; 6. storage structure; 61. storage plate; 611. opening; 62. latch. DETAILED DESCRIPTION
[0030] The following is combined with Figure 1-3, the specific implementation methods of the utility model are further described in detail to make the technical solution of the utility model easier to understand and grasp.
[0031] The present application embodiment discloses a lockstitch sewing machine housing with an auxiliary device:
[0032] Reference Figure 1-Figure 3 A sewing machine housing with an auxiliary moving device includes a sewing machine housing 1 and an auxiliary device 2. The auxiliary device 2 is arranged on the side of one end of the sewing machine housing 1. The auxiliary device 2 includes a roller 21 and a motor 22. The roller 21 is sleeved on both sides of the motor 22. The motor 22 is used to drive the roller 21 to rotate slowly, and the roller 21 is used to abut against the cloth. When a novice sews a long cloth, the auxiliary device 2 can be used to pull the cloth forward instead. Since the motor 22 rotates the roller 21 at a constant speed to drive the cloth to move, the situation that the cloth bends the sewing needle and causes the sewing needle to hit the bottom plate and break the needle is reduced, thereby increasing safety.
[0033] Reference Figure 1-Figure 2 A friction layer 211 is fixed on the outside of the drum 21, and motor 22 switches are fixed on both sides of the drum 21. The motor 22 switches on both sides drive the motor 22 to rotate forward and reverse respectively. The design of the friction layer 211 can increase the friction between the drum 21 and the cloth, so that the drum 21 can better drive the cloth to move, and the design of the motor 22 switch driving the motor 22 to rotate forward and reverse allows the operator to use the auxiliary device 2 to assist the backstitch operation when sewing larger cloth.
[0034] Reference Figure 1-Figure 2 , and also includes an adjustment mechanism 3, the adjustment mechanism 3 includes an extension structure 31 and a tightening structure 32, the extension structure 31 includes a support rod 311 and a sleeve 313, one end of the sleeve 313 rotates on the sewing machine housing 1 through the rotating shaft 4, the other end of the sleeve 313 is sleeved on the outside of the support rod 311, the support rod 311 slides in the sleeve 313, the end of the support rod 311 away from the sleeve 313 is fixed on the motor 22, and the tightening structure 32 is used to abut the roller 21 on the cloth. The support rod 311 can be lowered at any time through the movement of the sleeve 313 and the rotating shaft 4 to assist in pulling the cloth, and the support rod 311 can slide in the sleeve 313 to adjust its length, so that it will not occupy a large space when stored. The rotating shaft 4 is fixed to the outside of the sewing machine housing 1, and the rotating shaft 4 is set close to the sewing needle. Disposing the rotating shaft 4 near the sewing needle also enables the auxiliary device 2 to be disposed near one end of the sewing needle, which can reduce the bending of the cloth when the roller 21 pulls the cloth, thereby increasing the stability during operation.
[0035] Referring to 3, the pressing structure 32 includes a spring 321 and a pressing plate 322. The pressing plate 322 is fixed in the sleeve 313. The pressing plate 322 is located below the rotating shaft 4. The two ends of the spring 321 are respectively fixed on the pressing plate 322 and the support rod 311. The spring 321 always maintains a telescopic state. The spring 321 enables the support rod 311 to move in the direction of exiting the sleeve 313, so that the support rod 311 can be pressed against the cloth during operation to adapt to the sewing conditions of cloths of different thicknesses.
[0036] Reference Figure 1-Figure 2 , and also includes a fixing structure 5, the fixing structure 5 includes an insertion rod 51, and the sleeve 313 and the support rod 311 are provided with a first through hole 312 and a second through hole 314 on one side near the end of the motor 22. When the support rod 311 slides into the sleeve 313 until the first through hole 312 and the second through hole 314 overlap, the insertion rod 51 can be inserted into the second through hole 314 through the first through hole 312. When rotating and storing, in order to reduce the space occupied by the adjustment mechanism 3, the position of the support rod 311 is fixed by inserting the insertion rod 51 into the first through hole 312 and the second through hole 314, so that the support rod 311 will not be pushed out by the spring 321 after it moves into the sleeve 313. At the same time, this fixing structure 5 is simple and easy for operators to operate. When the insertion rod 51 is inserted into the inner side of the support rod 311 through the first through hole 312 and the second through hole 314, the spring 321 will press the support rod against the insertion rod 51, so that the insertion rod 51 will not fall due to gravity.
[0037] Reference Figure 1-Figure 2 , and also includes a storage structure 6, which includes a storage plate 61 and a latch 62. The storage plate 61 is fixed on the end of the sleeve 313 facing the sewing machine housing 1. The storage plate 61 is provided with an opening 611, and the sewing machine housing 1 is provided with a latch hole 11. When the adjustment mechanism 3 drives the auxiliary device 2 to rotate 90 degrees through the rotating shaft 4, the opening 611 and the latch hole 11 overlap, and the latch 62 can be inserted into the latch hole 11 through the opening 611. When rotating and storing, the adjustment mechanism 3 and the auxiliary device 2 can be fixed to one side of the sewing machine housing 1 by the latch 62 to reduce the situation where the adjustment mechanism 3 and the auxiliary device 2 automatically release the storage state.
[0038] By designing the fixing structure 5 and the storage structure 6, the adjustment mechanism 3 does not occupy a large space when stored, and the operator can decide whether to use the auxiliary device 2 according to the situation.
[0039] Reference Figure 1-Figure 2 A hanging rope 511 is fixed to one side of the insertion rod 51. The design of the hanging rope 511 allows the insertion rod 51 to be hung on the latch 62 when the auxiliary device 2 is working, thereby reducing the possibility of the insertion rod 51 being lost.
[0040] Of course, the above are only typical examples of the present invention. In addition, the present invention may have many other specific implementations. Any technical solutions formed by equivalent replacement or equivalent transformation fall within the scope of protection required by the present invention.
Claims
1. A lockstitch sewing machine housing with an auxiliary device, comprising a lockstitch sewing machine housing (1), It is characterized in that The invention also comprises an auxiliary device (2), the auxiliary device (2) being arranged on the side surface of one end of the sewing machine housing (1), the auxiliary device (2) comprising a roller (21) and a motor (22), the roller (21) being sleeved on both sides of the motor (22), the motor (22) being used to drive the roller (21) to rotate slowly, and the roller (21) being used to abut against the cloth.
2. A lockstitch sewing machine housing with an auxiliary device according to claim 1, It is characterized in that The invention also comprises an adjusting mechanism (3), the adjusting mechanism (3) comprising an extension structure (31) and a pressing structure (32), the extension structure (31) comprising a support rod (311) and a sleeve (313), one end of the sleeve (313) being rotated on the sewing machine housing (1) via a rotating shaft (4), the other end of the sleeve (313) being sleeved on the outside of the support rod (311), the support rod (311) sliding in the sleeve (313), the end of the support rod (311) away from the sleeve (313) being fixed on the motor (22), and the pressing structure (32) being used for pressing the roller (21) against the cloth.
3. A lockstitch sewing machine housing with an auxiliary device according to claim 2, It is characterized in that The rotating shaft (4) is arranged outside the sewing machine housing (1), and the rotating shaft (4) is arranged close to the sewing needle.
4. A lockstitch sewing machine housing with auxiliary device according to claim 3, It is characterized in that The abutting structure (32) comprises a spring (321) and a abutting plate (322); the abutting plate (322) is arranged in the sleeve (313); the abutting plate (322) is located below the rotating shaft (4); two ends of the spring (321) are respectively arranged on the abutting plate (322) and the supporting rod (311); and the spring (321) always maintains a telescopic state.
5. A lockstitch sewing machine housing with auxiliary device according to claim 4, It is characterized in that The invention also includes a fixing structure (5), wherein the fixing structure (5) includes an insertion rod (51), and a first through hole (312) and a second through hole (314) are provided on one side of the sleeve (313) and the support rod (311) close to one end of the motor (22); when the support rod (311) slides into the sleeve (313) until the first through hole (312) and the second through hole (314) overlap, the insertion rod (51) can be inserted into the second through hole (314) through the first through hole (312).
6. A lockstitch sewing machine housing with auxiliary device according to claim 2, It is characterized in that The invention also comprises a storage structure (6), wherein the storage structure (6) comprises a storage plate (61) and a latch (62), wherein the storage plate (61) is fixed on one end of the sleeve (313) facing the sewing machine housing (1), wherein an opening (611) is provided on the storage plate (61), and wherein a latch hole (11) is provided on the sewing machine housing (1), wherein when the adjustment mechanism (3) drives the auxiliary device (2) to rotate 90 degrees via the rotating shaft (4), the opening (611) and the latch hole (11) overlap, and the latch (62) can be inserted into the latch hole (11) through the opening (611).
7. A lockstitch sewing machine housing with auxiliary device according to claim 5, It is characterized in that A hanging rope (511) is provided on one side of the insertion rod (51), and the hanging rope (511) is used to hang the insertion rod (51) on the latch pin (62) during operation.
8. A lockstitch sewing machine housing with an auxiliary device according to claim 1, It is characterized in that A friction layer (211) is arranged on the outside of the roller (21), and motor (22) switches are respectively arranged on both sides of the roller (21), and the motor (22) switches on both sides respectively drive the motor (22) to rotate forward and reverse.