Automatic feeding device of sewing machine

Abstract

The utility model belongs to the technical field of industrial sewing machines, and particularly relates to an automatic feeding device of a sewing machine, which comprises a main frame, a fixed transverse plate, a feeding plate, a motor component and a pushing component. According to the automatic feeding device of the sewing machine, the linear lead screw motor is combined with the belt type horizontal sliding table and matched with the sewing machine to move synchronously, the process from automatic feeding to automatic sewing is achieved, labor intensity is greatly reduced, and working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial sewing machines, in particular to an automatic feeding device for sewing machines. Background Art

[0002] At present, the pre-sewing of car seat backs is mostly done by manually operating sewing machines. During the pre-sewing process, the pre-sewn materials need to be taken and placed manually one by one, which is labor-intensive and greatly affects work efficiency. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide an automatic feeding device for a sewing machine, which solves the technical problems of high labor intensity and low work efficiency caused by manual taking and placing of sewing materials.

[0004] To achieve the above purpose, the solution adopted by the utility model is as follows:

[0005] The utility model provides an automatic feeding device for a sewing machine, comprising:

[0006] The main frame includes a top frame, a side frame and a middle frame;

[0007] A fixed transverse plate fixed on the middle frame of the main frame;

[0008] A feeding plate, located above the fixed horizontal plate, for placing sewing materials;

[0009] The motor assembly is fixed on the fixed horizontal plate, and includes a linear screw motor and a screw rod perpendicular to the fixed horizontal plate. The feed plate is fixed on the top of the screw rod. The linear screw motor drives the screw rod to rotate, and drives the feed plate to move up and down along the screw rod above the fixed horizontal plate.

[0010] A pushing assembly is located above the feed plate and fixed on the top frame of the main frame, and includes a pushing component. The pushing component includes a belt-type horizontal slide, a first slider located on the belt-type horizontal slide, and a pushing plate assembly fixed on the first slider. The pushing plate assembly includes a pushing plate, and the pushing plate is used to push the sewing material on the feed plate to the external sewing machine table.

[0011] Preferably, it also includes a linear guide rail assembly, which includes a vertical guide rail fixed on the side frame of the main frame and a second slider located on the vertical guide rail, the second slider can slide on the vertical guide rail, and the second slider is fixed on the side of the feeding plate.

[0012] Preferably, the lowest position of the screw rod of the motor assembly is set as the initial position "zero position" of the feed plate. At this position, a proximity switch is provided on the side of the feed plate, and the proximity switch is fixed to the fixed horizontal plate through a proximity switch mounting bracket.

[0013] Preferably, it also includes a side limit frame and a front limit frame fixed on the fixed transverse plate, the side limit frame is located on two opposite sides of the feeding plate, and the front limit frame is located on a side of the feeding plate in front of the direction in which the sewing material is pushed out.

[0014] Preferably, material sensing switches are provided below the belt-type horizontal slide of the pushing assembly and on the tops of the two opposite side limit frames. Each time the linear screw motor drives the feed plate carrying the sewing material upward to the material sensing switch, the feed plate stops moving and simultaneously triggers the first slider on the belt-type horizontal slide of the pushing assembly to slide on the belt, driving the pushing plate on the first slider to horizontally push the sewing material on the feed plate to the external sewing machine table.

[0015] Preferably, a horizontally arranged supporting plate is provided on the front limiting frame for connecting with an external sewing machine table, and the pushing plate on the pushing assembly pushes the sewing material on the feeding plate to the position of the supporting plate.

[0016] Preferably, it also includes a seamless material sensing switch arranged on the feeding plate, which is used to sense the presence of seamless material on the feeding plate.

[0017] Preferably, an initial position sensing switch and a limit position sensing switch are respectively provided at both ends of the belt-type horizontal slide of the pusher assembly.

[0018] Preferably, the motor assembly further comprises a screw motor mounting seat for fixing the linear screw motor on the fixed horizontal plate.

[0019] Preferably, the pusher assembly further comprises a pusher component mounting seat for fixing the pusher component on the top frame of the main frame; the pusher plate assembly further comprises a pusher plate connecting plate for fixing the pusher plate on the first sliding block.

[0020] Beneficial Effects

[0021] The utility model provides an automatic feeding device for a sewing machine, which realizes the process from automatic feeding to automatic sewing through a linear screw motor combined with a belt-type horizontal slide table and synchronous movement of the sewing machine, thereby greatly reducing labor intensity and greatly improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1The utility model is a three-dimensional structural schematic diagram of an automatic feeding device for a sewing machine.

[0023] Figure 2 The present invention is a three-dimensional structural schematic diagram of an automatic feeding device for a sewing machine from another angle.

[0024] Figure 3 The utility model is a partial structural schematic diagram of an automatic feeding device for a sewing machine.

[0025] Figure 4 The utility model is a structural schematic diagram of a material pushing component of an automatic feeding device for a sewing machine.

[0026] In the figure,

[0027] 1-main frame, 11-top frame, 12-side frame, 13-middle frame, 14-roller,

[0028] 2-fixed horizontal plate, 21-side limit frame, 22-front limit frame, 23-supporting plate,

[0029] 3-feeding plate, 31-linear guide assembly, 311-vertical guide, 312-second slide,

[0030] 4-motor assembly, 41-screw motor mounting seat, 42-linear screw motor, 43-screw,

[0031] 5-push material assembly, 51-push material component mounting seat, 52-push material component, 521-belt type horizontal slide, 522-first slide block, 523-push material plate assembly, 524-push material plate connecting plate, 525-push material plate,

[0032] 6-Proximity switch,

[0033] 7-Proximity switch mounting bracket,

[0034] 8-Material induction switch,

[0035] 9-With seamless material induction switch. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0039] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0040] In addition, the terms "horizontal", "vertical" and the like do not mean that the components are required to be absolutely horizontal or suspended, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] To this end, the following solutions are proposed:

[0043] See also Figure 1-3 The utility model provides an automatic feeding device for a sewing machine, comprising a main frame 1, a fixed horizontal plate 2, a feeding plate 3, a motor assembly 4 and a pushing assembly 5.

[0044] Specifically, the main frame 1 includes a top frame 11, a side frame 12 and an intermediate frame 13. The fixed horizontal plate 2 is fixed on the intermediate frame 13 of the main frame 1. The feed plate 3 is located above the fixed horizontal plate 2 for placing sewing materials. The motor assembly 4 includes a screw motor mounting seat 41, a linear screw motor 42 and a screw 43 arranged perpendicular to the fixed horizontal plate 2. The linear screw motor 42 is fixed to the fixed horizontal plate 2 through the screw motor mounting seat 41. The linear screw motor 42 can drive the screw 43 to move up and down. The feed plate 3 is fixed on the top of the screw 43. The linear screw motor 42 drives the screw 43 to rotate, and drives the feed plate 3 to move up and down above the fixed horizontal plate 2 along the screw 43.

[0045] In some embodiments, the lowest position of the screw rod 43 of the motor assembly 4 is set as the initial position "zero position" of the feed plate 3. At this position, a proximity switch 6 is provided on the side of the feed plate 3, and the proximity switch 6 is fixed to the fixed horizontal plate 2 through a proximity switch mounting bracket 7.

[0046] Specifically, the pusher assembly 5 is located above the feed plate 3 and is fixed to the top frame 11 of the main frame 1 through a long rod-shaped pusher component mounting seat 51. The pusher assembly 5 also includes a pusher component 52, such as Figure 4 As shown, the pusher component 52 includes a belt-type horizontal slide 521 mounted and fixed on the pusher component mounting seat 51, a first slider 522 located on the belt-type horizontal slide 521, and a pusher plate assembly 523 fixed on the first slider 522, wherein the pusher plate assembly 523 includes a pusher plate 525 and a pusher plate connecting plate 524, and the pusher plate 525 is fixed to the first slider 522 through the pusher plate connecting plate 524. When the first slider 522 slides on the belt-type horizontal slide 521, the first slider 522 can drive the pusher plate 525 to push the sewing material on the feed plate 3 onto the external sewing machine table to realize automatic feeding.

[0047] In some embodiments, the push plate connecting plate 524 is fixedly mounted on the first slider 522 by screw connection, and the push plate 525 is fixedly mounted on the push plate connecting plate 524 by screw connection. As an alternative, the push plate connecting plate 524 can be fixedly mounted on the first slider 522, or the push plate 525 can be fixedly mounted on the push plate connecting plate 524 by, for example, welding.

[0048] In the utility model, an automatic feeding device for a sewing machine further includes a linear guide assembly 31, wherein the linear guide assembly 31 includes a vertical guide 311 fixed on the side frame 12 of the main frame 1 and a second slider 312 located on the vertical guide 311, wherein the second slider 312 can slide on the vertical guide 311, and the second slider 312 is fixed on one side of the feed plate 3. During the process of the linear screw motor 42 driving the screw 43 to rotate, the feed plate 3 is driven to move up and down above the fixed horizontal plate 2 along the screw 43, and at the same time, the side of the feed plate 3 slides along the vertical guide 311 through the second slider 312, thereby ensuring the stable up and down movement of the feed plate 3. In a preferred embodiment, two sets of linear guide assemblies 31 are included, which are respectively arranged on the two sides of the feed plate 3, thereby further ensuring the stable up and down movement of the feed plate 3.

[0049] In an automatic feeding device for a sewing machine of the utility model, it also includes a side limit frame 21 and a front limit frame 22 fixed on the fixed horizontal plate 2, the side limit frame 21 is located on two opposite sides of the feeding plate 3, and the front limit frame 22 is located on a side of the feeding plate 3 in front of the direction in which the sewing material is pushed out. Through the two side limit frames 21 and the one front limit frame 22, the feeding plate 3 can be further driven by the linear screw motor 42 to ensure the stable up and down movement of the feeding plate 3 on the screw 43.

[0050] In some embodiments, a facing-type material sensing switch 8 is respectively provided below the belt-type horizontal slide 521 of the pushing assembly 5 and on the top of the two opposite side limit frames 21. Each time the linear screw motor 42 drives the feed plate 3 carrying the sewing material upward to the material sensing switch 8, the feed plate 3 stops moving and simultaneously triggers the first slider 522 on the belt-type horizontal slide 521 of the pushing assembly 5 to slide on the belt, and the first slider 522 drives the push plate 525 to push the sewing material on the feed plate 3 onto the external sewing machine table. When the feed plate 3 is at the material sensing switch 10, the distance between the push plate 525 and the push plate 525 is set to a degree that the push plate 525 can just touch the sewing material on the feed plate 3 and can push the sewing material.

[0051] In some embodiments, a horizontally arranged support plate 23 is provided on the front limit frame 22, and the support plate 23 is used to connect to an external sewing machine table. When the pushing plate 525 on the pushing assembly 5 pushes the sewing material on the feeding plate 3 forward, the sewing material is finally pushed onto the support plate 23. The support plate 23 is connected to the external sewing machine table. Therefore, the sewing material is pushed by the pushing plate 525 to the support plate 23 connected to the external sewing machine table, thereby realizing automatic feeding of the sewing material.

[0052] In some embodiments, a seamless material sensing switch 9 is provided on the feeding plate 3 to sense whether there is seamless material on the feeding plate 3 .

[0053] In some embodiments, an initial position sensing switch 53 and a limit position sensing switch 54 are respectively provided at both ends of the belt-type horizontal slide 521 of the push assembly 5 .

[0054] During the use of an automatic feeding device for a sewing machine of the utility model, at the beginning stage, the feeding plate 3 is located at the initial position "zero position" near the switch 6, the first slider 522 of the pushing assembly 5 is located at the initial position sensing switch 53 of the belt-type horizontal slide 521, and a batch of sewing materials is placed on the feeding plate 3 (not exceeding the height of the material sensing switch 8), and the seamless material sensing switch 9 on the feeding plate 3 senses that there is sewing material on the feeding plate 3, and the first slider 522 of the pushing assembly 5 slides to the extreme position sensing switch 54 of the belt-type horizontal slide 521, and the linear screw motor 42 is started. The machine 42 drives the feed plate 3 carrying the sewing material to move upward until it reaches the material sensing switch 8, at which time the feed plate 3 stops moving and triggers the first slider 522 on the belt-type horizontal slide 521 of the pushing assembly 5 to slide on the belt. The first slider 522 drives the pushing plate 525 to push the sewing material on the feed plate 3 out. The pushing distance is set according to actual conditions. The first slider 522 pushes the sewing material onto the supporting plate 23 connected to the external sewing machine table (i.e., it is pushed into place) and then automatically retracts. The above process is repeated until the sewing material is fed, and the feed plate 3 retracts to the initial position "zero position" near the switch 6, waiting for the next material discharge.

[0055] In the automatic feeding device for a sewing machine of the utility model, optionally, a plurality of rollers 14 are further provided at the bottom of the main frame 1 to facilitate the free movement of the automatic feeding device for a sewing machine.

[0056] The utility model provides an automatic feeding device for a sewing machine, which is particularly suitable for the pre-sewing of current automobile seat backs, and solves the technical problems of high labor intensity and low work efficiency caused by manual taking and placing of sewing materials. The utility model realizes the process from automatic feeding to automatic sewing by combining a linear screw motor with a belt-type horizontal slide table and coordinating the synchronous movement of the automatic sewing unit of the sewing machine, and can realize one person to look after multiple machines, thereby greatly reducing labor intensity and greatly improving work efficiency.

[0057] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An automatic feeding device for a sewing machine, characterized in that: include: The main frame includes a top frame, a side frame and a middle frame; A fixed transverse plate fixed on the middle frame of the main frame; A feeding plate, located above the fixed horizontal plate, for placing sewing materials; The motor assembly is fixed on the fixed horizontal plate, and includes a linear screw motor and a screw rod perpendicular to the fixed horizontal plate. The feed plate is fixed on the top of the screw rod. The linear screw motor drives the screw rod to rotate, and drives the feed plate to move up and down along the screw rod above the fixed horizontal plate. A pushing assembly is located above the feed plate and fixed on the top frame of the main frame, and includes a pushing component. The pushing component includes a belt-type horizontal slide, a first slider located on the belt-type horizontal slide, and a pushing plate assembly fixed on the first slider. The pushing plate assembly includes a pushing plate, and the pushing plate is used to push the sewing material on the feed plate to the external sewing machine table.

2. The automatic feeding device for a sewing machine according to claim 1, characterized in that: It also includes a linear guide rail assembly, which includes a vertical guide rail fixed on the side frame of the main frame and a second slider located on the vertical guide rail, the second slider can slide on the vertical guide rail, and the second slider is fixed on the side of the feeding plate.

3. The automatic feeding device for a sewing machine according to claim 1, characterized in that: The lowest position of the screw of the linear screw motor is set as the initial position "zero position" of the feeding plate. At this position, a proximity switch is provided on the side of the feeding plate, and the proximity switch is fixed to the fixed horizontal plate through a proximity switch mounting frame.

4. An automatic feeding device for a sewing machine according to claim 1 or 3, characterized in that: It also includes a side limit frame and a front limit frame fixed on the fixed horizontal plate, the side limit frame is located on two opposite sides of the feeding plate, and the front limit frame is located on a side of the feeding plate in front of the direction in which the sewing material is pushed out.

5. The automatic feeding device for a sewing machine according to claim 4, characterized in that: Material sensing switches are respectively provided on the tops of the two opposite side limit frames. Every time the linear screw motor drives the feed plate carrying the sewing material upward to the material sensing switch, the feed plate stops moving and simultaneously triggers the first slider on the belt-type horizontal slide of the pushing assembly to slide on the belt, driving the pushing plate on the first slider to horizontally push the sewing material on the feed plate to the external sewing machine table.

6. The automatic feeding device for a sewing machine according to claim 4, characterized in that: A horizontally arranged supporting plate is provided on the front limiting frame for connecting with an external sewing machine table, and the pushing plate on the pushing assembly pushes the sewing material on the feeding plate to the position of the supporting plate.

7. The automatic feeding device for a sewing machine according to claim 1, characterized in that: It also includes a seamless material sensing switch arranged on the feeding plate, which is used to sense the presence of seamless material on the feeding plate.

8. The automatic feeding device for a sewing machine according to claim 1, characterized in that: An initial position sensing switch and a limit position sensing switch are respectively provided at two ends of the belt-type horizontal slide of the pusher assembly.

9. The automatic feeding device for a sewing machine according to claim 1, characterized in that: The motor assembly also includes a screw motor mounting seat for fixing the linear screw motor on the fixed horizontal plate.

10. The automatic feeding device for a sewing machine according to claim 1, characterized in that: The pusher assembly also includes a pusher component mounting seat for fixing the pusher component on the top frame of the main frame; the pusher plate assembly also includes a pusher plate connecting plate for fixing the pusher plate on the first sliding block.

Images