Continuous feeding device for sewing machine

Abstract

The utility model relates to the technical field of feeding devices, and provides a continuous feeding device for a sewing machine, which comprises a fixed seat, a rotating shaft, a motor, a cam, a spring, an insertion rod, a support rod, a lifting rod and a push block, the motor is connected with one end of the rotating shaft, the cam is connected with the other end of the rotating shaft, the spring is sleeved on the insertion rod, and the support rod is connected with the lifting rod. The inserting rod is movably inserted into the fixing seat, the spring is connected between the inserting rod and the fixing seat in an abutting mode, and the inserting rod and the rotating shaft are arranged in the same straight line; and one end of the supporting rod is vertically connected with the inserting rod. On the basis, when the lifting rod ascends, the lifting rod fully abuts against the cloth on the top, when the lifting rod moves towards the front end, the cloth is automatically conveyed to a sewing area on the sewing machine, manual repeated feeding is not needed in the sewing process, the labor intensity can be effectively reduced, the efficiency is effectively improved, and the overall practicability is high.

Description

Technical Field

[0001] The present application relates to the technical field of feeding devices, and in particular to a continuous feeding device for a sewing machine. Background Art

[0002] During the operation of a traditional sewing machine, continuous or single pieces of cloth need to be placed manually in the sewing area for sewing. This operation method requires great labor intensity and therefore needs to be further improved. Utility Model Content

[0003] In order to improve the above problems, the purpose of this application is to provide a continuous feeding device for a sewing machine.

[0004] The present application provides a continuous feeding device for a sewing machine using the following technical solution:

[0005] A continuous feeding device for a sewing machine comprises a fixed seat, a rotating shaft, a motor, a cam, a spring, a plug rod, a support rod, a lifting rod and a pushing block, the motor is connected to one end of the rotating shaft, the cam is connected to the other end of the rotating shaft, the spring is sleeved on the plug rod, and the plug rod is movably plugged into the fixed seat, the spring abuts between the plug rod and the fixed seat, the plug rod and the rotating shaft are arranged in the same straight line; one end of the support rod is vertically connected to the plug rod, the lifting rod is hinged to one end of the support rod close to the plug rod, one end of the lifting rod away from the plug rod abuts against the upper part of the cam, and the pushing block is connected to a side of the lifting rod close to the cam; an abutment block is provided at one end of the support rod away from the plug rod, a flange is provided on the side of the cam facing the motor, and the abutment block intermittently abuts against the flange.

[0006] By adopting the above technical solution, when in use, the feeding device is installed on the side of the corresponding sewing machine, and the prepared cloth is laid on the push block, and the motor drives the cam to rotate through the rotating shaft. When the cam rotates, the lifting rod is raised in advance, and then as the cam continues to rotate, the abutment block rotates along the flange. The height design of the flange is used to make the support rod drive the plug-in rod to slide toward one side of the fixed seat, and the push block is installed on the lifting rod. When the lifting rod is raised, the lifting rod fully abuts against the top cloth. When the lifting rod moves toward the front end, the cloth is automatically transported to the sewing area on the sewing machine. The sewing process does not require repeated manual feeding, which can effectively save labor intensity, effectively improve efficiency, and has strong overall practicality.

[0007] Optionally, a support platform is included, and the fixing seat and the motor are installed on the support platform.

[0008] By adopting the above technical solution, the fixing seat and the motor are both installed on the supporting table, so that the supporting table and the feeding device form an integral structure, which is convenient for process movement and use.

[0009] Optionally, a roller is provided at one end of the lifting rod away from the plug-in rod, the roller is rotatably connected to the lifting rod, and the roller abuts against the cam.

[0010] By adopting the above technical solution and utilizing the provided roller, when the cam abuts against the roller, the roller can rotate synchronously, thereby preventing the cam from directly abutting against the lifting rod. By utilizing this structure, the process friction can be effectively reduced and the service life can be increased.

[0011] Optionally, when the cam rotates, the cam drives the lifting rod to rise through the roller in advance, and the abutment block then abuts against the flange, so that the push block is first raised and then moved.

[0012] By adopting the above technical solution and utilizing the above structure, the control process of the lifting rod first rising and then moving can be effectively realized, thereby driving the cloth to be transported stably. The process design is exquisite and easy to use.

[0013] Optionally, the push block is higher than the support rod, and a push plate is provided at one end of the support rod away from the lifting rod.

[0014] By adopting the above technical solution, the push block is higher than the support rod, so that when the cloth covers the push block, it will not be hinged on the support rod. At the same time, the push plate can be used to push the cloth to the sewing area better without slipping during the process.

[0015] Optionally, the flange is designed as a semicircular arc, which is higher in the middle and lower on both sides, and the end of the flange away from the cam is a slope.

[0016] By adopting the above technical solution, the flange is designed as a semicircular arc. When the abutment block is opened and abuts on the flange, the support rod drives the plug-in rod to start moving. The flange is high in the middle and low on both sides, which makes it easy for the support rod to drive the plug-in rod to achieve reciprocating motion under the action of the spring. At the same time, one side of the flange is a sloped structure, which makes it easier for the abutment block to slide along the flange more smoothly.

[0017] Optionally, it further comprises a protective cover, which is connected to the support platform, and the feeding device is located on the inner side of the protective cover, and the protective cover is provided with a clearance groove for the push block to pass through.

[0018] By adopting the above technical solution and utilizing the protective cover, firstly, it is convenient to protect the feeding device and avoid potential safety hazards; secondly, when the cloth is placed on the push block, the remaining part can directly abut against the protective cover without being hinged with the feeding device, thereby preventing interference with the process; the clearance groove can effectively allow the push block to move within a limited range.

[0019] Optionally, the protective cover and the support platform are detachable structures.

[0020] By adopting the above technical solution, the protective cover and the support platform are detachable structures, which is convenient for process maintenance.

[0021] In summary, the present application includes at least one of the following beneficial effects:

[0022] 1. When in use, the feeding device is installed on the side of the corresponding sewing machine, and the prepared fabric is laid on the push block. The motor drives the cam to rotate through the rotating shaft. When the cam rotates, the lifting rod is raised in advance, and then as the cam continues to rotate, the abutment block rotates along the flange. The height design of the flange is used to make the support rod drive the plug rod to slide toward one side of the fixed seat. The push block is installed on the lifting rod. When the lifting rod is raised, the lifting rod fully abuts against the top fabric. When the lifting rod moves toward the front end, the fabric is automatically transported to the sewing area on the sewing machine. The sewing process does not require repeated feeding by manual labor, which can effectively save labor intensity, effectively improve efficiency, and has strong overall practicality and great market promotion value.

[0023] 2. By using the roller, when the cam abuts against the roller, the roller can rotate synchronously, avoiding the cam from directly abutting against the lifting rod. By using this structure, the friction during the process can be effectively reduced and the service life can be increased;

[0024] 3. The flange is designed as a semicircular arc. When the abutment block is opened and abutted against the flange, the support rod drives the plug rod to start moving. The flange is high in the middle and low on both sides, which makes it easy for the support rod to drive the plug rod to achieve reciprocating motion under the action of the spring. At the same time, the flange has a slope structure on one side, which makes it easier for the abutment block to slide along the flange more smoothly.

[0025] 4. The use of the protective cover is convenient for protecting the feeding device to avoid potential safety hazards; secondly, when the cloth is placed on the push block, the remaining part can directly abut against the protective cover without being hinged with the feeding device, thus preventing interference with the process. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the internal structure of this application;

[0027] Figure 2 yes Figure 1 A partial enlarged schematic diagram of part A;

[0028] Figure 3 It is a schematic diagram of the overall structure of this application.

[0029] Description of reference numerals:

[0030] 100, fixed seat; 200, rotating shaft; 300, motor; 400, cam; 410, flange; 500, spring; 600, plug-in rod; 700, support rod; 710, abutment block; 800, lifting rod; 810, roller; 820, push block; 830, push plate; 900, support table; 910, protective cover; 911, clearance groove. DETAILED DESCRIPTION

[0031] The technical solution of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The present application can be embodied in many different forms and is not limited to the embodiments described here.

[0032] In the description of the present application, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics represented can be combined in any one or more embodiments or examples in a suitable manner.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by technicians in the technical field of the present application; the terms used in this article are only for the purpose of describing specific embodiments and are not intended to limit the present application. In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection; it can also be a detachable connection; or integrated; it can also be a mechanical connection. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0034] In conjunction with Figures 1-3, some embodiments of the present application are described in detail below. In the absence of conflict, those skilled in the art may combine and combine the different embodiments or examples and the features of the different embodiments or examples shown in the present application.

[0035] Embodiment 1: A continuous feeding device for a sewing machine, see Figure 1 and Figure 2, including a fixed seat 100, a rotating shaft 200, a motor 300, a cam 400, a spring 500, a plug-in rod 600, a support rod 700, a lifting rod 800 and a pushing block 820, the motor 300 is connected to one end of the rotating shaft 200, the cam 400 is connected to the other end of the rotating shaft 200, and the motor 300 drives the cam 400 to rotate through the rotating shaft 200; the plug-in rod 600 is L-shaped, the spring 500 is sleeved on the plug-in rod 600, and the plug-in rod 600 is movably plugged into the fixed seat 100, the spring 500 is located between the plug-in rod 600 and the fixed seat 100, and the plug-in rod 600 and the rotating shaft 200 are arranged in the same straight line.

[0036] Among them, one end of the support rod 700 is vertically fixedly connected to the plug-in rod 600, the lifting rod 800 is hinged to the end of the support rod 700 close to the plug-in rod 600, the end of the lifting rod 800 away from the plug-in rod 600 abuts against the upper part of the cam 400, and the pushing block 820 is connected to the side of the lifting rod 800 close to the cam 400, and an abutment block 710 is provided at the end of the support rod 700 away from the plug-in rod 600, and a flange 410 is provided on the side of the cam 400 facing the motor 300, and the abutment block 710 intermittently abuts against the flange 410.

[0037] Specifically, when in use, the feeding device is installed on the side of the corresponding sewing machine, and the prepared fabric is laid on the push block 820. The motor 300 drives the cam 400 to rotate through the rotating shaft 200. When the cam 400 rotates, the lifting rod 800 is raised in advance, and then as the cam 400 continues to rotate, the abutment block 710 rotates along the flange 410. The height design of the flange 410 allows the support rod 700 to drive the plug-in rod 600 to slide toward one side of the fixed seat 100. The push block 820 is installed on the lifting rod 800. When the lifting rod 800 is raised, the lifting rod 800 fully abuts against the top fabric. When the lifting rod 800 moves toward the front end, the fabric is automatically transported to the sewing area on the sewing machine.

[0038] It should be noted that when the push block 820 completes a single push of the cloth, under the action of the spring 500, the plug-in rod 600 and the support rod 700 can be reset to the initial state, thereby realizing the circular path movement control.

[0039] In some embodiments, a roller 810 is provided at one end of the lifting rod 800 away from the plug-in rod 600. The roller 810 is rotatably connected to the lifting rod 800, and the roller 810 abuts against the cam 400. By utilizing the set roller 810, when the cam 400 abuts against the roller 810, the roller 810 can rotate synchronously to avoid the cam 400 directly abutting against the lifting rod 800. By utilizing this structure, the process friction can be effectively reduced and the service life can be improved.

[0040] In some embodiments, when the cam 400 rotates, the cam 400 drives the lifting rod 800 to rise through the roller 810 in advance, and the abutment block 710 abuts against the flange 410, so that the push block 820 is first raised and then moved. With this structure, the control process of the lifting rod 800 being first raised and then moved can be effectively realized, thereby driving the cloth to be transported stably. The process design is exquisite and easy to use.

[0041] In some embodiments, the flange 410 is designed as a semicircular arc. When the abutment block 710 is opened and abuts against the flange 410, the support rod 700 drives the plug rod 600 to start moving. The middle is high and the two sides are low, which makes it easier for the support rod 700 to drive the plug rod 600 to achieve reciprocating motion under the action of the spring 500. At the same time, the flange 410 is a sloped structure on one side, which makes it easier for the abutment block 710 to slide along the flange 410 more smoothly.

[0042] In some embodiments, the push block 820 is higher than the support rod 700, so that when the cloth covers the push block 820, it will not be hinged on the support rod 700. A push plate 830 is provided at the end of the support rod 700 away from the lifting rod 800. The push plate 830 is used to push the cloth to the sewing area better without slipping during the process.

[0043] See also Figure 2 and Figure 3 , including a support platform 900, a fixing seat 100 and a motor 300 installed on the support platform, so that the support platform 900 and the feeding device form an integral structure, which is convenient for mobile use during the process. It also includes a protective cover 910, which is connected to the support platform 900, and the feeding device is located on the inner side of the protective cover 910. The protective cover 910 is provided with a clearance groove 911 for the push block 820 to pass through. The use of the protective cover 910 is convenient for protecting the feeding device to avoid potential safety hazards; secondly, when the cloth is placed on the push block 820, the remaining part can directly abut against the protective cover 910, and will not be hinged with the feeding device, thereby preventing interference in the process; the clearance groove 911 can effectively allow the push block 820 to move within a limited range.

[0044] It should be noted that, in this embodiment, the protective cover 910 and the support platform 900 are detachable structures to facilitate process maintenance.

[0045] The implementation principle of the embodiment of the present application is as follows: when in use, the feeding device is installed on the side of the corresponding sewing machine, and the prepared cloth is laid on the push block 820, and the motor 300 drives the cam 400 to rotate through the rotating shaft 200. When the cam 400 rotates, the lifting rod 800 is raised in advance, and then as the cam 400 continues to rotate, the abutment block 710 rotates along the flange 410. The height design of the flange 410 allows the support rod 700 to drive the plug-in rod 600 to slide toward one side of the fixed seat 100, and the push block 820 is installed on the lifting rod 800. When the lifting rod 800 is raised, the lifting rod 800 fully abuts against the top cloth. When the lifting rod 800 moves toward the front end, the cloth is automatically transported to the sewing area on the sewing machine. The sewing process does not require repeated feeding by manual labor, which can effectively save labor intensity.

[0046] The embodiments of this specific implementation are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. The same components are represented by the same figure marks. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A continuous feeding device for a sewing machine, characterized in that: The invention comprises a fixed seat (100), a rotating shaft (200), a motor (300), a cam (400), a spring (500), a plug rod (600), a support rod (700), a lifting rod (800) and a pushing block (820), wherein the motor (300) is connected to one end of the rotating shaft (200), the cam (400) is connected to the other end of the rotating shaft (200), the spring (500) is sleeved on the plug rod (600), and the plug rod (600) is movably plugged into the fixed seat (100), the spring (500) is abutted between the plug rod (600) and the fixed seat (100), and the plug rod (600) and the rotating shaft (200) are arranged in the same straight line; One end of the support rod (700) is vertically connected to the plug rod (600), the lifting rod (800) is hinged to one end of the support rod (700) close to the plug rod (600), one end of the lifting rod (800) away from the plug rod (600) abuts against the upper part of the cam (400), and the pushing block (820) is connected to one side of the lifting rod (800) close to the cam (400); An abutment block (710) is provided at one end of the support rod (700) away from the plug rod (600), and a flange (410) is provided on the side of the cam (400) facing the motor (300), and the abutment block (710) intermittently abuts against the flange (410).

2. A continuous feeding device for a sewing machine according to claim 1, characterized in that: It comprises a support platform (900), on which the fixing seat (100) and the motor (300) are mounted.

3. A continuous feeding device for a sewing machine according to claim 1, characterized in that: A roller (810) is provided at one end of the lifting rod (800) away from the plug-in rod (600), the roller (810) is rotatably connected to the lifting rod (800), and the roller (810) abuts against the cam (400).

4. A continuous feeding device for a sewing machine according to claim 3, characterized in that: When the cam (400) rotates, the cam (400) drives the lifting rod (800) to rise via the roller (810) in advance, and the abutment block (710) then abuts against the flange (410), so that the push block (820) first rises and then moves.

5. A continuous feeding device for a sewing machine according to claim 1, characterized in that: The push block (820) is higher than the support rod (700), and a push plate (830) is provided at one end of the support rod (700) away from the lifting rod (800).

6. A continuous feeding device for a sewing machine according to claim 4, characterized in that: The flange (410) is designed as a semicircular arc, which is higher in the middle and lower on both sides; the end of the flange (410) away from the cam (400) is an inclined surface.

7. A continuous feeding device for a sewing machine according to claim 2, characterized in that: It also comprises a protective cover (910), the protective cover (910) is connected to the support platform (900), and the feeding device is located on the inner side of the protective cover (910), and the protective cover (910) is provided with a clearance groove (911) for the push block (820) to pass through.

8. A continuous feeding device for a sewing machine according to claim 7, characterized in that: The protective cover (910) and the support platform (900) are detachable structures.

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