CN216919668U

CN216919668U - High-toughness sewing machine spindle

Info

Publication number: CN216919668U
Application number: CN202220373151.1U
Authority: CN
Inventors: 包国放
Original assignee: New Sewing Machine Technology Ningbo Co ltd
Current assignee: New Sewing Machine Technology Ningbo Co ltd
Priority date: 2022-02-23
Filing date: 2022-02-23
Publication date: 2022-07-08
Anticipated expiration: 2032-02-23

Abstract

The application discloses high tenacity sewing machine main shaft belongs to sewing machine technical field, including lower main shaft, connecting spring is installed to the interior diapire of main shaft down, the inner wall sliding connection of lower main shaft has the spliced pole, the bottom surface of spliced pole and connecting spring's top fixed connection, the impingement plate is installed on the top of spliced pole, the surface activity of lower main shaft articulates there are two connecting plates, the top of lower main shaft is provided with the main shaft, fixing spring is installed to the interior roof of going up the main shaft, rack plate is installed to fixing spring's bottom, rack plate meshing is connected with the connecting gear, the pivot is installed to the inner wall of connecting gear, the one end that the pivot was kept away from each other all runs through the main shaft and a side fixed connection that is close to each other with two connecting plates, the surface activity of lower main shaft articulates there is the fixing base. According to the high-toughness sewing machine spindle, the impact plate is arranged to impact the rack plate, the rack plate moves upwards to be matched with the connecting gear, the rotating shaft and the connecting plate to drive the lower spindle to rotate, and the impact force is reduced.

Description

High-toughness sewing machine spindle

Technical Field

The application belongs to the technical field of sewing machines, and particularly relates to a high-toughness sewing machine main shaft.

Background

A sewing machine is a machine for forming one or more stitches in a material using one or more sewing threads to interlace or stitch together one or more layers of the material, and is used for sewing cotton, hemp, silk, wool, rayon, leather, plastic, paper, and the like.

In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: when the existing sewing machine is used, the phenomenon of main shaft fracture often occurs due to the fact that the main shaft is subjected to larger impact force because the main shaft is continuously vibrated up and down and is subjected to different impact forces, so that the sewing machine cannot work normally, and the production efficiency is reduced.

Therefore, we propose a high tenacity sewing machine main shaft to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The application aims to solve the problem that in the prior art, the main shaft is broken due to the fact that the main shaft is subjected to large impact force, and the high-toughness sewing machine main shaft is provided.

In order to achieve the purpose, the following technical scheme is adopted in the application:

the utility model provides a high tenacity sewing machine main shaft, includes lower main shaft, coupling spring is installed to the inner diapire of main shaft down, the inner wall sliding connection of main shaft has the spliced pole down, the bottom surface of spliced pole and coupling spring's top fixed connection, the strikeplate is installed on the top of spliced pole, the surface activity of main shaft articulates down has two connecting plates, the top of main shaft is provided with the main shaft down, go up the interior roof of main shaft and install fixing spring, rack plate is installed to fixing spring's bottom, rack plate meshing is connected with connecting gear, connecting gear's inner wall installs the pivot, the one end that the pivot was kept away from each other all runs through the main shaft and a side fixed connection who is close to each other with two connecting plates, the surface activity of main shaft articulates down has the fixing base.

Through setting up spliced pole and coupling spring, realized having played the effect of buffering to the spliced pole when the main shaft impact force that receives is less, through setting up the strikeplate, when the main shaft impact force that receives is great, strikeplate striking rack board for rack board rebound makes connecting gear and pivot drive the connecting plate and rotates, makes down the main shaft take place to deflect, thereby reduces the impact force that the main shaft received, through setting up the fixing base, the workman of being convenient for is connected the device with other mechanisms.

Preferably, a sliding rod is installed on the inner bottom wall of the lower main shaft, and the inner wall of the connecting column is in sliding connection with the outer surface of the sliding rod.

Through setting up the slide bar, realized the purpose to spliced pole fixed track.

Preferably, two compression springs are mounted at the top end of the lower main shaft, and a buffer plate is mounted at the top end of each compression spring.

Through setting up compression spring and buffer plate, realized reducing the purpose of main shaft impact force under the impact plate striking.

Preferably, the inner top wall of the upper main shaft is provided with a sliding shaft, and the outer surface of the sliding shaft is connected with the inner wall of the rack plate in a sliding manner.

Through setting up the slide shaft, realized the purpose of fixed rack board orbit that reciprocates, avoided the rack board to take place the phenomenon of rocking as far as possible.

Preferably, the outer surface of the upper main shaft is connected with a heat conducting plate in a sliding mode, and radiating fins which are arranged equidistantly are arranged on the outer surface of the heat conducting plate.

Through setting up heat-conducting plate and fin, realized the purpose to the device cooling.

Preferably, the front surface of the heat-conducting plate and the back surface of the heat-conducting plate are provided with connecting lugs, and each connecting lug is provided with a threaded hole in the upper surface.

Through setting up engaging lug and screw hole, realized the workman of being convenient for and installed the device at the inside purpose of sewing machine.

Preferably, the fixed column is installed on the top of last main shaft, the surface mounting of fixed column has two joint pieces, two pressing spring, every are all installed to the side that the joint piece is close to each other pressing spring's the one end that is close to each other all is connected with the fixed surface fixed connection of fixed column, the top of fixed column is provided with the fixed block, two the equal joint of joint piece is in the inside of fixed block.

Through setting up fixed column, pressing spring, joint piece and fixed block, realized the purpose of the workman's of being convenient for dismantlement main shaft.

Preferably, the upper surface of the fixing block is provided with a connecting rod, and the outer surface of the connecting rod is provided with a connecting flange.

Through setting up flange and connecting rod, realized the workman of being convenient for and connected the purpose of device and drive mechanism.

To sum up, the technical effect and the advantage of this application: the high-toughness sewing machine main shaft is provided with the connecting spring and the connecting column, so that when the sewing machine main shaft vibrates up and down and is impacted, can play a certain role in buffering, when the main shaft of the sewing machine is subjected to larger impact force in vertical vibration, the impact plate is arranged to impact the rack plate, so that the rack plate moves upwards to drive the connecting gear and the rotating shaft to rotate, so that the connecting plate drives the lower main shaft to rotate at a certain angle, when the impact force is reduced and the impact plate cannot collide with the rack plate, the rack plate can be pushed to move downwards by the resilience of the fixed spring, so that the connecting gear, the rotating shaft and the connecting plate rotate, and then make the lower main shaft resume the original state to increase the toughness of sewing machine main shaft, avoided the main shaft to receive the impact force as far as possible and take place cracked phenomenon when great, through being provided with the fixing base, be convenient for the main shaft to be connected with other mechanism.

Drawings

FIG. 1 is a perspective structural view of a spindle according to the present application;

FIG. 2 is a perspective view of the structure of the present application in a cross-sectional view of the lower spindle;

FIG. 3 is a perspective view of the present application showing a cross-sectional view of the upper spindle;

fig. 4 is a schematic structural diagram of a bottom view of a fixing column according to the present application.

In the figure: 1. a connecting rod; 2. a fixed block; 3. a heat sink; 4. a heat conducting plate; 5. connecting lugs; 6. an upper main shaft; 7. a connecting plate; 8. a lower main shaft; 9. a connecting flange; 10. a threaded hole; 11. an impact plate; 12. a compression spring; 13. a connecting spring; 14. a slide bar; 15. connecting columns; 16. a buffer plate; 17. fixing the spring; 18. a slide shaft; 19. a rack plate; 20. a rotating shaft; 21. a connecting gear; 22. a clamping block; 23. a pressing spring; 24. fixing a column; 25. a fixed seat.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments.

Referring to fig. 1-2, a high tenacity sewing machine main shaft, including lower main shaft 8, connecting spring 13 is installed to the inner bottom wall of lower main shaft 8, the inner wall sliding connection of lower main shaft 8 has spliced pole 15, the bottom surface of spliced pole 15 and the top fixed connection of connecting spring 13, impingement plate 11 is installed on the top of spliced pole 15, slide bar 14 is installed to the inner bottom wall of lower main shaft 8, the inner wall of spliced pole 15 and the surface sliding connection of slide bar 14, the purpose that connecting pole 15 takes place to rock about in the in-process that reciprocates can be avoided as far as possible to the slide bar 14 of installation, thereby the stability of device has been increased.

Referring to fig. 2, two compression springs 12 are installed at the top end of the lower spindle 8, and a buffer plate 16 is installed at the top end of each compression spring 12, so that when the spindle vibrates up and down, the buffer plate 16 and the compression springs 12 can reduce the impact force of the impact plate 11 striking the top end of the lower spindle 8, thereby reducing the damage of the lower spindle 8 and prolonging the service life of the device.

Referring to fig. 1-3, the outer surface of the lower spindle 8 is movably hinged with two connecting plates 7, an upper spindle 6 is arranged above the lower spindle 8, a fixing spring 17 is arranged on the inner top wall of the upper spindle 6, a rack plate 19 is arranged at the bottom end of the fixing spring 17, the rack plate 19 is connected with a connecting gear 21 in a meshing manner, a rotating shaft 20 is arranged on the inner wall of the connecting gear 21, the ends, far away from each other, of the rotating shafts 20 penetrate through the upper spindle 6 and are fixedly connected with one side surface, close to the two connecting plates 7, of the upper spindle 6, the connecting gear 21 is driven by the rack plate 19 to rotate, so that the connecting gear 21 is matched with the rotating shaft 20 and the connecting plates 7 to drive the lower spindle 8 to rotate, impact force applied to the spindles is reduced, a sliding shaft 18 is arranged on the inner top wall of the upper spindle 6, the outer surface of the sliding shaft 18 is connected with the inner wall of the rack plate 19 in a sliding manner, and the sliding shaft 18 is arranged to avoid the rack plate 19 from deviating during moving as much as possible, further increasing the stability of the device.

Referring to fig. 1, a heat conducting plate 4 is slidably connected to the outer surface of an upper spindle 6, and heat dissipation fins 3 are arranged on the outer surface of the heat conducting plate 4 at equal intervals, so that when the spindle temperature rises due to spindle vibration, the heat conducting plate 4 can transfer part of the temperature on the surface of the spindle to the heat dissipation fins 3, thereby reducing the temperature on the surface of the spindle and avoiding the phenomenon of deformation caused by overhigh spindle temperature as much as possible.

Referring to fig. 1, the engaging lugs 5 are mounted on the front surface of the heat conducting plate 4 and the back surface of the heat conducting plate 4, a threaded hole 10 is formed in the upper surface of each engaging lug 5, a worker installs a bolt in the threaded hole 10, and the worker can install the device in the sewing machine conveniently, so that the assembling time of the sewing machine is shortened.

Referring to fig. 1 and 4, fixed column 24 is installed on the top of last main shaft 6, the surface mounting of fixed column 24 has two joint pieces 22, pressing spring 23 is all installed to the side that two joint pieces 22 are close to each other, every pressing spring 23 one end that is close to each other all is connected with the surface fixed connection of fixed column 24, the top of fixed column 24 is provided with fixed block 2, the inside at fixed block 2 of the equal joint of two joint pieces 22, the workman is through pressing two joint pieces 22, and with the joint of fixed block 2 at the surface of fixed column 24, be convenient for the workman to install and dismantle the main shaft, conveniently change or maintain the main shaft.

Referring to fig. 1, the outer surface of the lower main shaft 8 is movably hinged with a fixing seat 25, the fixing seat 25 is convenient for a worker to connect the main shaft with other mechanisms, and the lower main shaft 8 is prevented from rotating in a large angle as much as possible, the upper surface of the fixing block 2 is provided with a connecting rod 1, the outer surface of the connecting rod 1 is provided with a connecting flange 9, the connecting rod 1 and the connecting flange 9 are used for facilitating the worker to connect the main shaft with a transmission mechanism, and the assembling time of the sewing machine is further reduced.

The working principle is as follows: firstly, the connecting flange 9 is connected with a transmission mechanism, a worker clamps a fixing column 24 on a fixing block 2 by pressing a clamping block 22, and a bolt penetrates through a threaded hole 10 to fix the device in the sewing machine, so as to complete the installation of a main shaft, when the sewing machine starts to work, the transmission mechanism drives the device to vibrate up and down, when the impact force applied to the main shaft is small, a connecting column 15 drives a connecting spring 13 to move up and down, at the moment, an impact plate 11 cannot collide with a rack plate 19, when the impact force applied to the main shaft is large, the impact plate 11 can collide with the rack plate 19, so that the rack plate 19 moves upwards, the rack plate 19 is matched with a connecting gear 21 and a rotating shaft 20 to drive a connecting plate 7 and a lower main shaft 8 to rotate at a certain angle, so as to reduce the impact force applied to the main shaft, when the impact force applied to the main shaft is reduced, under the resilience action of the fixing spring 17, the rack plate 19 moves downwards to be matched with the connecting gear 21, the rotating shaft 20 and the connecting plate 7 to drive the lower spindle 8 to restore the original state, and when the temperature of the device rises due to spindle vibration, the heat conducting plate 4 transmits the temperature of the upper part of the spindle to the radiating fins 3, so that the temperature of the surface of the device is reduced, and the phenomenon that the spindle deforms due to overhigh temperature is avoided as much as possible.

The above description is only for the preferred embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present application, and all equivalent substitutions and changes according to the technical solutions and the inventive concepts of the present application should be covered by the scope of the present application.

Claims

1. The utility model provides a high tenacity sewing machine main shaft, includes lower main shaft (8), a serial communication port, coupling spring (13) are installed to the inner diapire of lower main shaft (8), the inner wall sliding connection of lower main shaft (8) has spliced pole (15), the bottom surface of spliced pole (15) and the top fixed connection of coupling spring (13), impingement plate (11) are installed on the top of spliced pole (15), the surface activity hinge of lower main shaft (8) has two connecting plates (7), the top of lower main shaft (8) is provided with main shaft (6), fixed spring (17) are installed to the interior roof of last main shaft (6), rack plate (19) are installed to the bottom of fixed spring (17), rack plate (19) meshing is connected with and connects gear (21), pivot (20) are installed to the inner wall of connecting gear (21), the one end that pivot (20) kept away from each other all runs through upper main shaft (6) and with two connecting plates (7) One side surfaces close to each other are fixedly connected, and the outer surface of the lower main shaft (8) is movably hinged with a fixed seat (25).

2. A high tenacity sewing machine spindle according to claim 1 wherein the inner bottom wall of said lower spindle (8) is fitted with a sliding bar (14), the inner wall of said connecting column (15) being slidably connected to the outer surface of the sliding bar (14).

3. A high tenacity sewing machine spindle according to claim 1, wherein two compression springs (12) are mounted to the top end of the lower spindle (8), and a buffer plate (16) is mounted to the top end of each compression spring (12).

4. A high tenacity sewing machine spindle according to claim 1, wherein a slide shaft (18) is mounted to an inner top wall of said upper spindle (6), and an outer surface of said slide shaft (18) is slidably connected to an inner wall of a rack plate (19).

5. A high tenacity sewing machine spindle according to claim 1, wherein a heat conducting plate (4) is slidably attached to the outer surface of said upper spindle (6), and fins (3) are mounted on the outer surface of said heat conducting plate (4) in equidistant arrangement.

6. A high-toughness sewing machine main shaft according to claim 5, wherein the front surface of the heat conducting plate (4) and the back surface of the heat conducting plate (4) are provided with connecting lugs (5), and the upper surface of each connecting lug (5) is provided with a threaded hole (10).

7. The high-toughness sewing machine spindle according to claim 1, wherein a fixing column (24) is mounted at the top end of the upper spindle (6), two clamping blocks (22) are mounted on the outer surface of the fixing column (24), pressing springs (23) are mounted on the side surfaces, close to each other, of the two clamping blocks (22), one end, close to each other, of each pressing spring (23) is fixedly connected with the outer surface of the fixing column (24), a fixing block (2) is arranged above the fixing column (24), and the two clamping blocks (22) are clamped inside the fixing block (2).

8. A high tenacity sewing machine spindle according to claim 7, wherein the upper surface of the fixed block (2) is provided with a connecting rod (1), and the outer surface of the connecting rod (1) is provided with a connecting flange (9).