Sewing machine with ejection adjusting function
The lifting seat is driven by the motor and cam structure, and combined with the manual adjustment mechanism, the problems of inconvenient adjustment of the sewing machine and low accuracy are solved, and the adjustment of the high-precision and stability are achieved, and the efficiency and equipment of the sewing process are improved. reliability.
Patent Information
- Application Number
- CN202420259089.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-01
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-02-01
AI Technical Summary
The existing sewing machines have inconvenient adjustment of the material, low accuracy and complex structure, which leads to easy damage to the needle during sewing, affecting production efficiency.
The motor and cam structure are used to drive the lifting seat to lift and lower, and the lifting and lowering of the top material shaft is achieved by adjusting the rotation of the motor and cam. It is combined with the manual adjustment mechanism to simplify the structure and improve the adjustment accuracy and stability.
It realizes the convenience of material adjustment, high accuracy, simple and compact structure and good operation stability, avoiding the problems of fabric damage and low production efficiency.
Smart Images
Figure CN222205704U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a sewing device, in particular to a sewing machine with a material pushing adjustment function. Background Art
[0002] At present, in the sewing process of the existing sewing machine, the cloth is placed on the presser foot plate and fixed with the needle plate, and then the cloth is lifted up by the push rod and then sewn by the machine needle. However, due to the structure of the existing sewing device or mechanism, the height adjustment of the push rod cannot be adjusted with high precision, especially the height cannot be effectively adjusted according to the thickness of the cloth. When the adjustment is not in place, the machine needle is easily damaged by the cloth during sewing, thereby affecting the sewing process and production efficiency. In addition, the existing adjustment mechanism also has the defects of inconvenient adjustment, complex structure, poor rationality, and low action stability. Utility Model Content
[0003] In order to overcome the shortcomings and deficiencies of the background technology, the utility model provides a sewing machine with a top material adjustment function to solve the problems of inconvenient adjustment, low adjustment accuracy, complex structure and poor movement stability in the top material adjustment of the existing sewing machine.
[0004] The technical solution of the utility model is: a sewing machine with a material ejection adjustment function, comprising a casing, a needle, a needle plate, a material ejection shaft and a push rod, the material ejection shaft cooperates with the push rod, and also includes an adjustment mechanism, the adjustment mechanism includes a bracket, an adjustment motor, an adjustment cam, and a lifting seat, the adjustment motor is arranged on the bracket, the adjustment motor drives the adjustment cam to rotate, the adjustment cam rotates and cooperates with the lifting seat to drive the lifting seat to rise or fall, the lifting seat and the material ejection shaft are engaged to form a lifting linkage connection.
[0005] The lifting seat is provided with an opening, and a positioning mechanism is provided between the openings. The positioning mechanism includes an upper positioning bearing, an upper fastening screw, a lower positioning bearing and a lower fastening screw. The upper positioning bearing is provided at the upper end of the opening, and the upper fastening screw passes through the upper positioning bearing and is fixedly connected to the lifting seat. The lower positioning bearing is provided at the lower end of the opening, and the lower fastening screw passes through the lower positioning bearing and is fixedly connected to the lifting seat. The ejecting shaft is provided between the upper fastening screw and the lower fastening screw.
[0006] The lifting seat is provided with an extension portion, the extension portion is provided with an adjustment bearing, and the adjustment cam is press-fitted with the adjustment bearing to drive the lifting seat to rise or fall.
[0007] The extension portion is integrally connected with the lifting seat.
[0008] The upper fastening screw and the lower fastening screw are hexagon socket countersunk screws.
[0009] It also includes a manual adjustment mechanism, which includes a base plate and an adjusting screw. The bracket is connected to the lifting seat. The adjusting screw passes through the casing and the base plate and is threadedly connected to the lifting seat. A positioning shaft is provided on the casing, and the positioning shaft passes through the bracket. One end of the base plate is located in the bracket and is sleeved on the positioning shaft.
[0010] The utility model has the following beneficial effects: the sewing machine adopts a motor combined with a cam structure to drive the lifting seat to lift and lower the ejector shaft to adjust the height of the ejector rod, and has the advantages of convenient adjustment, high adjustment accuracy, simple, compact and reasonable structure, and good action stability. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a structural schematic diagram of the utility model.
[0012] Figure 2 For this utility model Figure 1 A magnified view of the structure in the middle.
[0013] Figure 3 It is a structural schematic diagram of the adjustment mechanism in the utility model.
[0014] Figure 4 It is a schematic diagram of the structure of the adjustment mechanism in the utility model from another angle.
[0015] Figure 5 It is a partial structural schematic diagram of the utility model.
[0016] In the figure, the casing 1, the needle 2, the needle plate 3, the ejector shaft 4, the ejector rod 5, the bracket 6, the adjusting motor 7, the adjusting cam 8, the lifting seat 9, the opening 10, the upper positioning bearing 11, the upper fastening screw 12, the lower positioning bearing 13, the lower fastening screw 14, the extension part 15, the adjusting bearing 16, the base plate 17, the adjusting screw 18, and the positioning shaft 19. DETAILED DESCRIPTION
[0017] The following is further described with respect to the embodiments of the present invention:
[0018] As shown in the figure, a sewing machine with a material ejection adjustment function includes a housing 1, a needle 2, a needle plate 3, a material ejection shaft 4 and a push rod 5, wherein the material ejection shaft 4 cooperates with the push rod 5, and also includes an adjustment mechanism, wherein the adjustment mechanism includes a bracket 6, an adjustment motor 7, an adjustment cam 8, and a lifting seat 9, wherein the adjustment motor 7 is arranged on the bracket 6, and the adjustment motor 7 drives the adjustment cam 8 to rotate, wherein the adjustment cam 8 rotates to press the lifting seat 9 and drives the lifting seat 9 to rise or fall, and the lifting seat 9 and the material ejection shaft 4 are engaged to form a lifting linkage connection. During adjustment, the lifting seat is pushed up or down by the adjustment motor to achieve the rise or fall of the lifting seat, thereby achieving the rise or fall of the material ejection shaft, so as to achieve the height adjustment of the push rod. According to the above scheme, the sewing machine uses a motor combined with a cam structure to drive the lifting seat to rise and fall to achieve the rise and fall of the material ejection shaft to achieve the adjustment of the height of the push rod, and has the advantages of convenient adjustment, high adjustment accuracy, simple structure, compact and reasonable structure, and good action stability.
[0019] In the utility model, as shown in the figure, an opening 10 is provided on the lifting seat 9, and a positioning mechanism is provided between the openings 10, and the positioning mechanism includes an upper positioning bearing 11, an upper fastening screw 12, a lower positioning bearing 13 and a lower fastening screw 14, the upper positioning bearing 11 is arranged at the upper end of the opening 10, the upper fastening screw 12 passes through the upper positioning bearing 11 and is fixedly connected to the lifting seat 9, the lower positioning bearing 13 is arranged at the lower end of the opening 10, the lower fastening screw 14 passes through the lower positioning bearing 13 and is fixedly connected to the lifting seat 9, and the ejecting shaft 4 is arranged between the upper fastening screw 12 and the lower fastening screw 14. The positioning mechanism is composed of an upper positioning bearing 11, an upper fastening screw 12, a lower positioning bearing 13 and a lower fastening screw 14. The ejection shaft 4 is located between the upper fastening screw 12 and the lower fastening screw 14. The upper positioning bearing 11 is combined with the upper fastening screw 12 to form a connection and positioning structure, and the lower positioning bearing 13 is combined with the lower fastening screw 14 to form a connection and positioning structure to effectively position and lock the ejection shaft 4, thereby preventing deviation or sliding of the locking position. The locking effect is good, the positioning stability is high and the performance is strong.
[0020] In the present utility model, as shown in the figure, the lifting seat 9 is provided with an extension 15, and the extension 15 is provided with an adjustment bearing 16. The adjustment cam 8 and the adjustment bearing 16 are pressed together to drive the lifting seat 9 to rise or fall, and the adjustment bearing 16 is fixed to the extension 15 by a screw 14. The lifting seat 9 is provided with an extension 15, and the extension 15 is provided with an adjustment bearing 16. When the adjustment motor is started, the adjustment cam 8 and the adjustment bearing 16 are driven to press against each other to realize the lifting of the lifting seat, and the adjustment bearing 16 is fixed to the extension 15 by a screw 14. The above structure is adopted, which has a reasonable structure, so that when the cam drives the lifting seat to rise and fall, the action stability and lifting adjustment accuracy are higher, the wear resistance is good, the service life of the product is extended, and the structure is reasonable and reliable.
[0021] In the present invention, as shown in the figure, the extension part 15 is integrally connected with the lifting seat 9. The extension part 15 is integrally connected with the lifting seat 9, which is easy to process, and the adjusting bearing 16 is fixed to the extension part 15 by screws 14, which is firmly positioned and reliably connected.
[0022] In the present invention, as shown in the figure, the upper fastening screw 12 and the lower fastening screw 14 are hexagon socket countersunk screws. The hexagon socket countersunk screws are used so that the head end face of the hexagon socket countersunk screws contacts the material-lifting shaft when the lifting seat is lifted. The hexagon socket countersunk screws reduce the contact area, are not easy to slide, and have a better locking effect when pressing.
[0023] In the present utility model, as shown in the figure, a manual adjustment mechanism is also included, the manual adjustment mechanism includes a bottom plate 17, an adjustment screw 18, the bracket 6 is connected to the lifting seat 9, the adjustment screw 18 passes through the housing 1, the bottom plate 17 and is threadedly connected to the lifting seat 9, the housing 1 is provided with a positioning shaft 19, the positioning shaft 19 passes through the bracket 6, and one end of the bottom plate 17 is located in the bracket 6 and sleeved on the positioning shaft 19. When adjusting, the adjustment screw 18 is rotated, because the end of the adjustment screw 18 is threadedly connected to the lifting seat 9, and the lifting seat 9 is sleeved on the positioning shaft, the bottom plate 17 is also sleeved on the positioning shaft and is located at the inner end of the bracket, and the bracket is connected to the lifting seat, therefore, the adjustment screw 18 is rotated, the lifting seat and the bracket are lifted and lowered along the positioning shaft to achieve adjustment, the operation is convenient, and the functionality is strong.
Claims
1. A sewing machine with a material ejection adjustment function, comprising a housing (1), a machine needle (2), a needle plate (3), a material ejection shaft (4) and a ejector rod (5), wherein the material ejection shaft (4) cooperates with the ejector rod (5), and is characterized in that: The invention also comprises an adjusting mechanism, the adjusting mechanism comprising a bracket (6), an adjusting motor (7), an adjusting cam (8), and a lifting seat (9), the adjusting motor (7) being arranged on the bracket (6), the adjusting motor (7) driving the adjusting cam (8) to rotate, the adjusting cam (8) rotating to press fit with the lifting seat (9) and driving the lifting seat (9) to rise or fall, the lifting seat (9) and the ejecting shaft (4) being engaged in a locking position to form a lifting linkage connection.
2. A sewing machine with a material push adjustment function according to claim 1, characterized in that: The lifting seat (9) is provided with an opening (10), and a positioning mechanism is provided between the openings (10). The positioning mechanism comprises an upper positioning bearing (11), an upper fastening screw (12), a lower positioning bearing (13) and a lower fastening screw (14). The upper positioning bearing (11) is provided at the upper end of the opening (10), and the upper fastening screw (12) passes through the upper positioning bearing (11) and is fixedly connected to the lifting seat (9). The lower positioning bearing (13) is provided at the lower end of the opening (10), and the lower fastening screw (14) passes through the lower positioning bearing (13) and is fixedly connected to the lifting seat (9). The ejecting shaft (4) is provided between the upper fastening screw (12) and the lower fastening screw (14).
3. A sewing machine with a material push adjustment function according to claim 1 or 2, characterized in that: The lifting seat (9) is provided with an extension portion (15), and the extension portion (15) is provided with an adjustment bearing (16). The adjustment cam (8) and the adjustment bearing (16) are pressed together to drive the lifting seat (9) to rise or fall, and the adjustment bearing (16) is fixed to the extension portion (15) by a screw (14).
4. A sewing machine with a material push adjustment function according to claim 3, characterized in that: The extension portion (15) is integrally connected to the lifting seat (9).
5. A sewing machine with a push-up adjustment function according to claim 2, characterized in that: The upper fastening screw (12) and the lower fastening screw (14) are hexagon socket countersunk screws.
6. A sewing machine with a material push adjustment function according to claim 1 or 2, characterized in that: The invention also comprises a manual adjustment mechanism, the manual adjustment mechanism comprising a bottom plate (17) and an adjustment screw (18), the bracket (6) being connected to the lifting seat (9), the adjustment screw (18) passing through the housing (1) and the bottom plate (17) and being threadedly connected to the lifting seat (9), the housing (1) being provided with a positioning shaft (19), the positioning shaft (19) passing through the bracket (6), one end of the bottom plate (17) being located in the bracket (6) and sleeved on the positioning shaft (19).