Curved surface sewing machine

Abstract

The present invention relates to a curved surface sewing machine, comprising: a sewing machine table, on which a sewing head is slidably assembled, and a sliding drive mechanism for driving the sewing head to reciprocate is provided on the sewing machine table; a mounting bracket carried on the sewing machine table; and a clamping and swinging mechanism carried on the mounting bracket, the clamping and swinging mechanism can be adjusted vertically along the mounting bracket, and the clamping and swinging mechanism comprises: a supporting plate, an arc-shaped clamping plate, a swinging drive mechanism, and a pressing mechanism. The sewing trajectory of the fabric is controlled by the arc-shaped clamping plate, reducing manual intervention and the control process, making the sewing process simple and the sewing accuracy and effect better; at the same time, since the clamping and swinging mechanism can be adjusted vertically along the mounting bracket, the mounting bracket can be adjusted to different heights according to the processing requirements, so as to meet the requirements of the processing arc and swinging arc of different products.

Description

Technical Field

[0001] The present invention relates to the technical field of sewing equipment, and more specifically, to a curved surface sewing machine. Background Art

[0002] With the booming development of the sewing industry, the sewing products that sewing equipment can process have become increasingly diversified. For some special sewing products, sometimes it is necessary to perform curved surface sewing to obtain sewing products with curved surface features. Currently, when sewing these products, it is usually manually controlled by workers, which has high processing difficulty, high requirements, and low control accuracy. Summary of the Invention

[0003] The purpose of the present invention is to provide a curved surface sewing machine, which has the advantages of reducing processing difficulty and improving processing accuracy.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is:

[0005] A curved surface sewing machine, comprising:

[0006] A sewing machine table, on which a sewing head is slidably assembled, and a sliding drive mechanism for driving the sewing head to reciprocate is provided on the sewing machine table;

[0007] A mounting bracket carried on the sewing machine table; and,

[0008] A clamping and swinging mechanism carried on the mounting bracket, the clamping and swinging mechanism can be adjusted vertically along the mounting bracket, and the clamping and swinging mechanism includes: a supporting plate for assembling with the mounting bracket, an arc-shaped clamping plate rotatably assembled on the supporting plate, a swinging drive mechanism carried on the supporting plate for driving the arc-shaped clamping plate to swing reciprocally, and a pressing mechanism carried on the arc-shaped clamping plate for clamping the cloth to be sewn.

[0009] Implementing the above technical solution, during sewing, the cloth is placed on the arc-shaped clamping plate and adjusted to a suitable position, then the cloth is pressed tightly by the pressing mechanism. Subsequently, the sliding drive mechanism drives the sewing head to reciprocally slide, and the swinging drive mechanism drives the arc-shaped clamping plate to swing. The two-directional movements cooperate with each other so that the sewing head can sew the cloth along an arc track, thereby achieving the effect of sewing a curved surface. Moreover, the sewing trajectory of the cloth is controlled by the arc-shaped clamping plate, reducing manual intervention and the control process, making the sewing process simple and the sewing accuracy and effect better. At the same time, since the clamping and swinging mechanism can be adjusted vertically along the mounting bracket, the mounting bracket can be adjusted to different heights according to the processing requirements, and arc-shaped clamping plates of corresponding sizes can be assembled, so as to meet the requirements of the processing arc and swinging arc of different products.

[0010] As a preferred solution of the present invention, the arc-shaped clamping plate comprises: a connecting arm rotatably mounted on the supporting plate, and an arc-shaped supporting plate detachably connected to the connecting arm, and a clamping groove is provided in the arc-shaped supporting plate.

[0011] To implement the above technical solution, since the arc-shaped support plate is detachably connected to the connecting arm, it is only necessary to replace the arc-shaped support plate when processing different products, and the replacement process is more convenient and quick.

[0012] As a preferred solution of the present invention, the pressing mechanism includes: a rotating seat rotatably assembled on the connecting arm, an arc-shaped pressure plate carried on one side of the rotating seat for pressing with the arc-shaped support plate to clamp the cloth, and a clamping cylinder carrying the connecting arm for driving the arc-shaped pressure plate to rotate; the piston rod of the clamping cylinder is hinged to the side of the rotating seat away from the arc-shaped pressure plate, and the arc-shaped pressure plate is provided with a sewing opening for sewing.

[0013] To implement the above technical solution, the clamping cylinder can drive the rotating seat to rotate during the extension and retraction process, and the rotating seat can drive the arc-shaped pressing plate to open and close during the rotation process, thereby achieving the compression or loosening of the cloth.

[0014] As a preferred solution of the present invention, an articulated seat is provided on the rotating seat, an articulated block is provided on the piston rod of the clamping cylinder, and the articulated seat is hinged to the articulated block.

[0015] The above technical solution is implemented to facilitate the hinged connection between the clamping cylinder and the hinge seat.

[0016] As a preferred solution of the present invention, the sliding drive mechanism is selected from the following structures and is applicable alone or in combination: a screw drive mechanism or a belt drive mechanism.

[0017] As a preferred solution of the present invention, a slide rail is provided at the bottom of the sewing machine table, a slider matched with the slide rail is provided on the sewing machine head, and a movable connecting block is provided on one side of the bottom of the sewing machine head.

[0018] The implementation of the above technical solution facilitates the sliding of the sewing machine table and the connection between the sliding drive mechanism and the sewing machine head.

[0019] As a preferred solution of the present invention, the mounting frame is provided with a plurality of first assembly holes distributed along the vertical direction, and the supporting plate is provided with second assembly holes corresponding to the first assembly holes.

[0020] To implement the above technical solution, the height of the clamping and swinging mechanism can be adjusted by assembling the second assembly holes corresponding to the first assembly holes at different heights.

[0021] As a preferred embodiment of the present invention, the supporting plate is slidably assembled to the mounting bracket in the vertical direction, and a vertical driving mechanism for driving the supporting plate to reciprocate in the vertical direction is provided on the mounting bracket.

[0022] To achieve the above technical solution, by driving the supporting plate to reciprocate through the vertical driving mechanism, the height of the clamping and swinging mechanism can be adjusted.

[0023] As a preferred embodiment of the present invention, the swing driving mechanism is selected from the following structures alone or in combination: a gear transmission mechanism, a belt transmission mechanism, or a chain transmission mechanism.

[0024] As a preferred embodiment of the present invention, a first connection step is provided at the end of the connecting arm, and a second connection step adapted to the first connection step is provided on one side of the arc-shaped supporting plate. The first connection step and the second connection step are engaged and locked by bolts.

[0025] To achieve the above technical solution, the detachable connection between the connecting arm and the arc-shaped supporting plate is realized, and the connection process is more rapid and convenient.

[0026] In summary, the present invention has the following beneficial effects:

[0027] In an embodiment of the present invention, a curved surface sewing machine is provided, including: a sewing machine table, on which a sewing machine head is slidably assembled, and a sliding driving mechanism for driving the sewing machine head to reciprocate is provided on the sewing machine table; a mounting bracket carried on the sewing machine table; and a clamping and swinging mechanism carried on the mounting bracket, the clamping and swinging mechanism can be adjusted vertically along the mounting bracket, and the clamping and swinging mechanism includes: a supporting plate for assembling with the mounting bracket, an arc-shaped clamping plate rotatably assembled on the supporting plate, a swing driving mechanism carried on the supporting plate for driving the arc-shaped clamping plate to swing reciprocally, and a pressing mechanism carried on the arc-shaped clamping plate for clamping the cloth to be sewn. During sewing, the cloth is placed on the arc-shaped clamping plate and adjusted to a suitable position, and then the cloth is pressed tightly by the pressing mechanism. Subsequently, the sewing machine head is driven to reciprocally slide by the sliding driving mechanism, and the arc-shaped clamping plate is driven to swing by the swing driving mechanism. The cooperation of the two-direction movements enables the sewing machine head to sew the cloth along the arc-shaped track, thereby achieving the effect of sewing a curved surface, and the sewing trajectory of the cloth is controlled by the arc-shaped clamping plate, reducing manual intervention and the control process, making the sewing process simple and the sewing accuracy and effect better; at the same time, since the clamping and swinging mechanism can be adjusted vertically along the mounting bracket, the mounting bracket can be adjusted to different heights according to the processing requirements, and arc-shaped clamping plates of corresponding sizes can be assembled, so as to meet the requirements of the processing arc and swinging arc of different products. Description of the Drawings

[0028] To more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0029] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present invention.

[0030] Figure 2 It is a schematic structural diagram of another perspective of Embodiment 1 of the present invention.

[0031] Figure 3 It is a schematic installation structure diagram of the mounting bracket and the clamping swing mechanism in Embodiment 1 of the present invention.

[0032] Figure 4 It is a schematic structural diagram of the support plate and the pressing mechanism in Embodiment 1 of the present invention.

[0033] Figure 5 It is a schematic structural diagram of Embodiment 2 of the present invention.

[0034] Among them, the reference numerals in the figures:

[0035] 1, sewing machine table; 11, sewing machine head; 12, sliding drive mechanism; 13, slide rail; 14, slider; 15, movable connecting block; 2, mounting bracket; 21, first assembly hole; 22, vertical drive mechanism; 3, clamping swing mechanism; 31, support plate; 311, second assembly hole; 32, arc-shaped clamping plate; 321, connecting arm; 322, arc-shaped support plate; 323, clamping groove; 324, first connection step; 325, second connection step; 33, swing drive mechanism; 34, pressing mechanism; 341, rotating seat; 342, arc-shaped pressing plate; 343, clamping cylinder; 344, sewing opening; 345, hinge seat; 346, hinge block. Detailed implementation manners

[0036] In the following detailed description, many specific details are put forward to facilitate a comprehensive understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without some of these specific details. The following description of the embodiments is only to provide a better understanding of the present invention by showing examples of the present invention.

[0037] Embodiment 1

[0038] A curved surface sewing machine, as Figures 1 to 4As shown in the figure, it includes: a sewing machine table 1, on which a sewing machine head 11 is slidably assembled, and a sliding drive mechanism 12 for driving the sewing machine head 11 to reciprocate is provided on the sewing machine table 1; a mounting bracket 2 carried on the sewing machine table 1; and a clamping and swinging mechanism 3 carried on the mounting bracket 2.

[0039] Specifically, the sliding drive mechanism 12 is selected from the following structures for individual or combined use: a lead screw drive mechanism or a belt drive mechanism. In this embodiment, the sliding drive mechanism 12 adopts a lead screw drive mechanism, which includes: a servo motor and a drive lead screw fixed to the power output shaft of the servo motor. A slide rail 13 is provided at the bottom of the sewing machine table 1, a slider 14 adapted to the slide rail 13 is provided on the sewing machine head 11, and a movable connection block 15 is provided on one side of the bottom of the sewing machine head 11. The drive lead screw is threadedly connected to the movable connection block 15, so as to facilitate the sliding of the sewing machine table 1 and the connection between the sliding drive mechanism 12 and the sewing machine head 11.

[0040] The clamping and swinging mechanism 3 can be adjusted vertically along the mounting bracket 2, and the clamping and swinging mechanism 3 includes: a supporting plate 31 for assembling with the mounting bracket 2, an arc-shaped clamping plate 32 rotatably assembled on the supporting plate 31, a swinging drive mechanism 33 carried on the supporting plate 31 for driving the arc-shaped clamping plate 32 to swing reciprocally, and a pressing mechanism 34 carried on the arc-shaped clamping plate 32 for clamping the fabric to be sewn.

[0041] A number of first assembly holes 21 are provided on the mounting bracket 2 and distributed vertically. Second assembly holes 311 corresponding to the first assembly holes 21 are provided on the supporting plate 31. By assembling the second assembly holes 311 with the first assembly holes 21 at different heights through bolt assemblies, the height of the clamping and swinging mechanism 3 can be adjusted.

[0042] The arc-shaped clamping plate 32 includes: a connecting arm 321 rotatably assembled on the supporting plate 31 and an arc-shaped supporting plate 322 detachably connected to the connecting arm 321. A clamping groove 323 is formed in the arc-shaped supporting plate 322. Since the arc-shaped supporting plate 322 is detachably connected to the connecting arm 321, only the arc-shaped supporting plate 322 needs to be replaced when processing different products, and the replacement process is more convenient and fast; a first connection step 324 is provided at the end of the connecting arm 321, and a second connection step 325 adapted to the first connection step 324 is provided on one side of the arc-shaped supporting plate 322. The first connection step 324 and the second connection step 325 are clamped and locked by bolts, so as to realize the detachable connection between the connecting arm 321 and the arc-shaped supporting plate 322, and the connection process is more rapid and convenient.

[0043] The press-fitting mechanism 34 includes: a rotating seat 341 rotatably assembled on the connecting arm 321, an arc-shaped pressing plate 342 carried on one side of the rotating seat 341 and used to press against the arc-shaped supporting plate 322 to clamp the fabric, and a clamping cylinder 343 carried on the connecting arm 321 and used to drive the arc-shaped pressing plate 342 to rotate; the piston rod of the clamping cylinder 343 is hinged to the side of the rotating seat 341 away from the arc-shaped pressing plate 342, and a sewing opening 344 for sewing treatment is provided on the arc-shaped pressing plate 342. An articulated seat 345 is provided on the rotating seat 341, and an articulated block 346 is provided on the piston rod of the clamping cylinder 343. The articulated seat 345 and the articulated block 346 are hinged by a pin shaft. During the telescoping process of the clamping cylinder 343, the rotating seat 341 can be driven to rotate. During the rotation of the rotating seat 341, the arc-shaped pressing plate 342 is driven to open and close, so as to realize the pressing or loosening of the fabric.

[0044] The swing driving mechanism 33 is selected from the following structures for single or combined use: a gear transmission mechanism, a belt transmission mechanism or a chain transmission mechanism. In this embodiment, the swing driving mechanism 33 selects a belt transmission mechanism, which specifically includes: a driving motor, a driving wheel fixed on the power output shaft of the driving motor, a driven wheel rotatably assembled on the supporting plate 31, and a transmission belt sleeved on the driving wheel and the driven wheel. The connecting arm 321 is coaxially connected to the driven wheel, so that the connecting arm 321 can be driven to swing reciprocally through the driving motor.

[0045] During sewing, the fabric is placed on the arc-shaped clamping plate 32 and adjusted to a suitable position, and then the fabric is pressed tightly by the press-fitting mechanism 34. Subsequently, the sewing head 11 is driven to reciprocally slide by the sliding driving mechanism 12, and the arc-shaped clamping plate 32 is driven to swing by the swing driving mechanism 33. The two-directional movements cooperate with each other so that the sewing head 11 can sew the fabric along the arc-shaped track, thus achieving the effect of sewing a curved surface. Moreover, the sewing track of the fabric is controlled by the arc-shaped clamping plate 32, reducing manual intervention and the control process, making the sewing process simple and the sewing accuracy and effect better; at the same time, since the clamping and swinging mechanism 3 can be adjusted vertically along the mounting frame 2, the mounting frame 2 can be adjusted to different heights according to the processing requirements, and the arc-shaped clamping plate 32 with corresponding dimensions can be assembled, so as to meet the requirements of the processing arc and the swinging arc of different products.

[0046] Embodiment Two

[0047] The difference between this embodiment and Embodiment One is that: in this embodiment, as Figure 5As shown in the figure, the supporting plate 31 is slidably assembled to the mounting bracket 2 in the vertical direction, and a vertical driving mechanism 22 for driving the supporting plate 31 to reciprocate in the vertical direction is provided on the mounting bracket 2. The vertical driving mechanism 22 is selected from the following structures for individual or combined use: an electric cylinder or a lead screw transmission mechanism. In this embodiment, the vertical driving mechanism 22 adopts a lead screw transmission mechanism. By driving the supporting plate 31 to reciprocate through the vertical driving mechanism 22, the height of the clamping swing mechanism 3 can be adjusted, making the adjustment process more convenient.

[0048] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the protection scope of the invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict, make combinations, additions, deletions, or other adjustments to the features in the embodiments of the present invention according to the circumstances without creative efforts, so as to obtain different technical solutions that essentially do not depart from the concept of the present invention. These technical solutions also fall within the protection scope of the present invention.

[0049] The foregoing is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A curved surface sewing machine, characterized in that, Including: A sewing machine table, on which a sewing machine head is slidably assembled, and a sliding drive mechanism for driving the sewing machine head to reciprocate is provided on the sewing machine table; A mounting bracket carried on the sewing machine table; And, A clamping and swinging mechanism carried on the mounting bracket, the clamping and swinging mechanism can be adjusted vertically along the mounting bracket, and the clamping and swinging mechanism includes: a supporting plate for assembling with the mounting bracket, an arc-shaped clamping plate rotatably assembled on the supporting plate, a swinging drive mechanism carried on the supporting plate for driving the arc-shaped clamping plate to swing reciprocally, and a pressing mechanism carried on the arc-shaped clamping plate for clamping the fabric to be sewn; Adjust the mounting bracket to different heights according to the processing requirements, and assemble the arc-shaped clamping plates of corresponding sizes to meet the requirements of the processing arc and swinging arc of different products.

2. The curved surface sewing machine according to claim 1, wherein The arc-shaped clamping plate includes: a connecting arm rotatably assembled on the supporting plate, and an arc-shaped supporting plate detachably connected to the connecting arm, and a clamping groove is formed in the arc-shaped supporting plate.

3. The curved surface sewing machine according to claim 2, wherein The pressing mechanism includes: a rotating seat rotatably assembled on the connecting arm, an arc-shaped pressing plate carried on one side of the rotating seat for pressing against the arc-shaped supporting plate to clamp the fabric, and a clamping cylinder carried on the connecting arm for driving the arc-shaped pressing plate to rotate; The piston rod of the clamping cylinder is hinged to the side of the rotating seat away from the arc-shaped pressing plate, and a sewing port for sewing treatment is provided on the arc-shaped pressing plate.

4. The curved surface sewing machine according to claim 3, wherein A hinge seat is provided on the rotating seat, a hinge block is provided on the piston rod of the clamping cylinder, and the hinge seat is hinged to the hinge block.

5. The curved surface sewing machine according to claim 1, wherein The sliding drive mechanism is selected from the following structures for single or combined use: a lead screw drive mechanism or a belt drive mechanism.

6. The curved surface sewing machine according to claim 1 or 5, characterized in that, A slide rail is provided at the bottom of the sewing machine table, a slider adapted to the slide rail is provided on the sewing machine head, and a movable connection block is provided on one side of the bottom of the sewing machine head.

7. The curved surface sewing machine according to claim 1, characterized in that, A number of first assembly holes are provided on the mounting bracket and distributed vertically, and second assembly holes corresponding to the first assembly holes are provided on the supporting plate.

8. The curved surface sewing machine according to claim 1, wherein, The supporting plate is slidably assembled on the mounting bracket vertically, and a vertical drive mechanism for driving the supporting plate to reciprocate vertically is provided on the mounting bracket.

9. The curved surface sewing machine according to claim 1, wherein, The swinging drive mechanism is selected from the following structures for single or combined use: a gear drive mechanism, a belt drive mechanism or a chain drive mechanism.

10. The curved surface sewing machine according to claim 2, wherein, A first connection step is provided at the end of the connecting arm, a second connection step adapted to the first connection step is provided on one side of the arc-shaped supporting plate, and the first connection step and the second connection step are clamped and locked by bolts.

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