Linear pattern sewing machine

Abstract

The utility model belongs to the technical field of foxing sewing, and mainly relates to a linear pattern sewing machine which comprises a feeding frame, a linear sewing mechanism, a pattern sewing mechanism, a buffering assembly and a receiving frame. The buffering assembly comprises two sliding rods, two sliding sleeves, a rotating shaft rotationally assembled on the two sliding sleeves, an upper travel switch and a lower travel switch, the foxing bypasses the lower side of the rotating shaft, the upper travel switch and the lower travel switch are both arranged on the pattern sewing mechanism, the upper travel switch is used for controlling the material receiving frame to stop material receiving, and the lower travel switch is used for controlling the material receiving frame to stop material receiving. The lower travel switch is used for controlling the material collecting frame to start collecting materials, and the distance between the upper travel switch and the lower travel switch is the length of the foxing collected by the material collecting frame every time. When the sliding sleeve touches the lower travel switch, the material collecting frame collects materials, when the sliding sleeve touches the upper travel switch, the material collecting frame stops collecting the materials, and the length of the foxing collected by the material collecting frame every time is the distance between the upper travel switch and the lower travel switch.

Description

Technical Field

[0001] The utility model belongs to the technical field of webbing sewing, and mainly relates to a linear pattern sewing machine. Background Art

[0002] Existing straight line pattern strips are all processed and produced by straight line pattern machines. First, the straight line machine processes the straight line pattern and then the pattern machine sews the pattern. The function of the straight line machine is to sew straight line patterns on the strips, and the pattern machine sews two patterns composed of curves, with the same shape and staggered positions on the strips to form a combined pattern effect.

[0003] The production of straight pattern strips requires four parts: a feed rack, a straight line machine, a pattern machine and a receiving rack. Fabrics of different styles need to be placed on the feed rack, and then sewn in turn by the straight line machine and the pattern machine, and then rolled up on the receiving rack, and finally made into rolls of finished products.

[0004] However, in the prior art, when the material receiving rack collects materials intermittently, the number of rotations is fixed, and the strips wrapped around the material receiving rack become more and more. The later it is, the longer the strips collected by the material receiving rack in one rotation are. Therefore, it is usually necessary to reserve a long section of strips between the material receiving rack and the pattern machine to ensure that the pulling of the strips when the material receiving rack collects materials later will not affect the sewing of the pattern machine. However, this method either takes up too much space, or the strips will fall to the ground, affecting the surface cleanliness of the strips. Utility Model Content

[0005] The utility model provides a straight pattern sewing machine to solve the problem in the prior art that the lengths of the strips collected by a material collecting rack are inconsistent each time the material is collected.

[0006] In order to solve the above problems, the present invention adopts the following technical solutions:

[0007] A linear pattern sewing machine comprising:

[0008] Material rack, used to place a variety of different styles of fabrics;

[0009] The linear sewing mechanism can sew a variety of different styles of fabrics into strips through linear patterns;

[0010] Pattern sewing mechanism, used for sewing curved patterns on the apron;

[0011] a buffer assembly, provided on the pattern sewing mechanism; and

[0012] The material collecting rack is used to intermittently collect the strips coming out of the buffer assembly;

[0013] Among them, the buffer assembly includes two sliding rods arranged on the pattern sewing mechanism in the up-down direction, two sliding sleeves slidably assembled on the corresponding sliding rods in the up-down direction, a rotating shaft assembled on the two sliding sleeves in the horizontal direction, an upper stroke switch and a lower stroke switch. The strip coming out of the pattern sewing mechanism is used to bypass from the lower side of the rotating shaft. The upper stroke switch and the lower stroke switch are both provided on the pattern sewing mechanism. The upper stroke switch is located above the lower stroke switch. The upper stroke switch and the lower stroke switch are respectively used to contact the sliding sleeves on the corresponding sides. The upper stroke switch is used to control the material receiving rack to stop receiving material, and the lower stroke switch is used to control the material receiving rack to start receiving material. The distance between the upper stroke switch and the lower stroke switch is the length of the strip received by the material receiving rack each time.

[0014] It has the following beneficial effects: when the sliding sleeve touches the lower stroke switch, the material receiving rack starts to receive the material, the rotating shaft will be moved upward by the surrounding strip, and the rotating shaft itself will rotate; when the sliding sleeve touches the upper stroke switch, the material receiving rack stops receiving the material, and the rotating shaft will slide downward along the sliding rod under the action of gravity; when the sliding sleeve touches the lower stroke switch, the material receiving rack starts to receive the material, and the above process is repeated. The length of the surrounding strip received each time by the material receiving rack is the distance between the upper stroke switch and the lower stroke switch, thus ensuring that the length of the surrounding strip received by the material receiving rack is consistent each time, avoiding that the surrounding strip is too long between the material receiving rack and the pattern sewing mechanism, and also avoiding that the surrounding strip touches the ground.

[0015] Furthermore, two spaced-apart limiting rings are provided on the rotating shaft, and a bar is provided between the two limiting rings for passing around.

[0016] It has the following beneficial effects: the two spaced-apart limiting rings will limit the position where the strips can go around the rotating shaft, so that the strips can remain within the two limiting rings, providing convenience for the subsequent rotation of the receiving rack to collect the strips, and making the strips more neatly wound on the receiving rack.

[0017] Furthermore, springs are provided at the upper and lower ends of each sliding rod.

[0018] The invention has the following beneficial effects: preventing the sliding sleeve from suddenly colliding with the connecting portion between the sliding rod and the pattern sewing mechanism, thereby reducing the risk of damage to the sliding sleeve.

[0019] Furthermore, the pattern sewing mechanism includes a frame, a first pattern sewing assembly and a second pattern sewing assembly, the first pattern sewing assembly includes a first pattern sewing piece movably mounted on the frame along the front-rear direction, the second pattern sewing assembly includes a left-right movable unit provided on the frame, a front-rear movable unit provided on the left-right movable unit, and a second pattern sewing piece provided on the front-rear movable unit.

[0020] The invention has the following beneficial effects: the first pattern sewing piece and the second pattern sewing piece can sew more patterns on the surrounding strip.

[0021] Furthermore, the first pattern sewing assembly includes a first motor provided on a frame, a first mounting plate slidably assembled on the frame along the front-rear direction, and a first pattern sewing piece mounted on the first mounting plate. The first motor is connected to the first mounting plate to drive the first mounting plate to move along the front-rear direction.

[0022] Furthermore, the left-right moving unit includes a second motor provided on the frame, a screw rod rotatably mounted on the frame, and a second mounting plate slidably mounted on the frame in the left-right direction, the screw rod extending in the left-right direction, the second mounting plate being threadedly connected to the screw rod, and the second motor drivingly connected to the screw rod to drive the second mounting plate to move in the left-right direction;

[0023] The forward and backward moving unit includes a third motor provided on the second mounting plate, a third mounting plate slidably assembled on the second mounting plate along the forward and backward direction, the second pattern sewing piece is provided on the third mounting plate, and the third motor is connected to the third mounting plate to drive the third mounting plate to move along the forward and backward direction.

[0024] Furthermore, the pattern sewing mechanism further includes a plurality of cloth pulling assemblies provided on the frame, and the plurality of cloth pulling assemblies are arranged on the left and right sides of the first pattern sewing assembly and the second pattern sewing assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood by reading the detailed description below with reference to the accompanying drawings. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein:

[0026] Figure 1 This is a schematic structural diagram of the utility model from the first perspective;

[0027] Figure 2 This is a schematic structural diagram of the utility model from a second viewing angle;

[0028] Figure 3 Schematic diagram of the structure of the buffer component;

[0029] Figure 4 It is a structural diagram of the pattern sewing mechanism from the first perspective;

[0030] Figure 5 It is a structural diagram of the pattern sewing mechanism from the second perspective;

[0031] Figure 6 It is a structural diagram of the pattern sewing mechanism from the third perspective;

[0032] Figure 7 is a structural schematic diagram of the first pattern sewing component;

[0033] Figure 8 Schematic diagram of the structure of the second pattern sewing component.

[0034] Description of reference numerals:

[0035] 1. Material unwinding rack; 2. Straight-line sewing mechanism; 3. Pattern sewing mechanism; 4. Buffer assembly; 5. Material receiving rack; 6. Guard strip; 7. Frame; 8. Sliding rod; 9. Sliding sleeve; 10. Rotating shaft; 11. Limiting ring; 12. Spring; 13. First pattern sewing component; 14. Second pattern sewing component; 15. Cloth pulling component; 16. First motor; 17. First mounting plate; 18. Second motor; 19. Screw rod; 20. Second mounting plate; 21. Third motor; 22. Third mounting plate; 23. First pattern sewing piece; 24. First slide rail; 25. Second pattern sewing piece; 26. Second slide rail; 27. Third slide rail. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0037] The following describes various non-limiting embodiments of the present invention. The numbers of any elements in the accompanying drawings are for illustrative purposes only and are not intended to be limiting. Any nomenclature is provided for distinction only and does not have any limiting meaning. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with one another unless there is a conflict.

[0038] like Figure 1 、 Figure 2As shown, a linear pattern sewing machine includes a feed rack 1, a linear sewing mechanism 2, a pattern sewing mechanism 3, a buffer assembly 4 and a material collection rack 5. The feed rack 1 is used to place a variety of different styles of fabrics. The linear sewing mechanism 2 sews a variety of different styles of fabrics into strips 6 through linear patterns. The pattern sewing mechanism 3 is used to sew curved patterns on the strips 6. The buffer assembly 4 is provided on the pattern sewing mechanism 3. The material collection rack 5 is used to intermittently collect the strips 6 that come out of the buffer assembly 4. The linear sewing mechanism 2 and the pattern sewing mechanism 3 are combined together to form an integrated production line to ensure production efficiency and quality, and reduce the floor space and operating stations. The pattern sewing mechanism 3 is customized and extended, with a sewing range of 0-420mm, which is larger than the sewing range of a conventional pattern machine head and can meet the needs of most users.

[0039] Specifically, if Figure 3 As shown, the buffer assembly 4 includes two sliding rods 8 arranged on the pattern sewing mechanism 3 in the up-down direction, two sliding sleeves 9 slidably assembled on the corresponding sliding rods 8 in the up-down direction, a rotating shaft 10 assembled on the two sliding sleeves 9 in the horizontal direction, an upper travel switch and a lower travel switch. The surrounding strip 6 coming out of the pattern sewing mechanism 3 is used to bypass from the lower side of the rotating shaft 10. The upper travel switch and the lower travel switch are both provided on the pattern sewing mechanism 3. The upper travel switch is located above the lower travel switch. The upper travel switch and the lower travel switch are respectively used to contact the sliding sleeves 9 on the corresponding side. The upper travel switch is used to control the material receiving rack 5 to stop receiving material, and the lower travel switch is used to control the material receiving rack 5 to start receiving material. The distance between the upper travel switch and the lower travel switch is the length of the surrounding strip 6 collected by the material receiving rack 5 each time.

[0040] When the sliding sleeve 9 touches the lower stroke switch, the material receiving rack 5 starts to receive the material, and the rotating shaft 10 is moved upward by the surrounding strip 6. At the same time, the rotating shaft 10 itself rotates. When the sliding sleeve 9 touches the upper stroke switch, the material receiving rack 5 stops receiving the material. The pattern sewing mechanism 3 continues to discharge the material, and the surrounding strip 6 will droop downward. At this time, the rotating shaft 10 will slide downward along the sliding rod 8 under the action of gravity. When the sliding sleeve 9 touches the lower stroke switch, the material receiving rack 5 starts to receive the material, and the above process is repeated. The length of the surrounding strip 6 received by the material receiving rack 5 each time is the distance between the upper stroke switch and the lower stroke switch. This ensures that the length of the surrounding strip 6 received by the material receiving rack 5 is consistent each time, avoiding that the surrounding strip 6 is too long between the material receiving rack 5 and the pattern sewing mechanism 3, and also preventing the surrounding strip 6 from contacting the ground, preventing the ground from dirtying the surrounding strip 6.

[0041] Two spaced-apart limiting rings 11 are provided on the rotating shaft 10, with the strip 6 passing between them. These two spaced-apart limiting rings 11 restrict the position of the strip 6 passing around the rotating shaft 10, keeping it within the two limiting rings 11. This facilitates the subsequent rotation of the stacking rack 5 to collect the strip 6 and ensures more orderly winding of the strip 6 on the stacking rack 5. The limiting rings 11 in this embodiment are removable, allowing the distance between the two limiting rings 11 to be adjusted as needed when sewing strips 6 of varying widths.

[0042] The upper and lower ends of each sliding rod 8 are all provided with springs 12. This can prevent the sliding sleeve 9 from suddenly colliding with the connecting portion of the sliding rod 8 and the pattern sewing mechanism 3, reducing the risk of the sliding sleeve 9 being damaged.

[0043] like Figure 1 、 Figure 4 、 Figure 5 、 Figure 6 As shown, the pattern sewing mechanism 3 includes a frame 7, a first pattern sewing assembly 13, and a second pattern sewing assembly 14. The banding 6 first passes through the first pattern sewing assembly 13 and then through the second pattern sewing assembly 14. The first pattern sewing assembly 13 includes a first pattern sewing piece 23 movably mounted on the frame 7 in the front-to-back direction. The second pattern sewing assembly 14 includes a left-right movable unit mounted on the frame 7, a front-to-back movable unit mounted on the left-right movable unit, and a second pattern sewing piece 25 mounted on the front-to-back movable unit. This allows the first pattern sewing piece 23 and the second pattern sewing piece 25 to sew a wider range of patterns on the banding 6. The sliding rod 8, the upper travel switch, and the lower travel switch are all mounted on the frame 7.

[0044] Specifically, if Figure 7 As shown, the first pattern sewing assembly 13 includes a first motor 16 provided on the frame 7, a first mounting plate 17 slidably mounted on the frame 7 along the front-rear direction, and a first pattern sewing piece 23 mounted on the first mounting plate 17. A first slide rail 24 extending along the front-rear direction is fixedly mounted on the frame 7, and the first mounting plate 17 slides on the first slide rail 24. The first motor 16 is connected to the first mounting plate 17 in a transmission manner to drive the first mounting plate 17 to move along the front-rear direction, thereby driving the first pattern sewing piece 23 to move along the front-rear direction.

[0045] Specifically, if Figure 6 、 Figure 8As shown, the left-right moving unit includes a second motor 18 provided on the frame 7, a screw rod 19 rotatably mounted on the frame 7, and a second mounting plate 20 slidably mounted on the frame 7 in the left-right direction. The frame 7 is provided with a second slide rail 26 extending in the left-right direction. The second mounting plate 20 slides on the second slide rail 26. The screw rod 19 extends in the left-right direction. The second mounting plate 20 is threadedly connected to the screw rod 19. The second motor 18 is connected to the screw rod 19 to drive the second mounting plate 20 to move in the left-right direction. The front-back moving unit includes a third motor 21 provided on the second mounting plate 20 and a third mounting plate 22 slidably mounted on the second mounting plate 20 in the front-back direction. The second mounting plate 20 is fixedly mounted with a third slide rail 27 extending in the front-back direction. The third mounting plate 22 slides on the third slide rail 27. The second pattern sewing piece 25 is provided on the third mounting plate 22. The third motor 21 is connected to the third mounting plate 22 to drive the third mounting plate 22 to move in the front-back direction, thereby driving the second pattern sewing piece 25 in the front-back direction.

[0046] like Figure 4-Figure 6 As shown, the pattern sewing mechanism 3 further includes three cloth pulling assemblies 15 provided on the frame 7. The three cloth pulling assemblies 15 are arranged on the left and right sides of the first pattern sewing assembly 13 and the second pattern sewing assembly 14, i.e., they are arranged alternately. The flannel 6 passes through one cloth pulling assembly 15, the first pattern sewing assembly 13, another cloth pulling assembly 15, the second pattern sewing assembly 14, and the last cloth pulling assembly 15 in sequence.

[0047] The working process of this utility model is as follows:

[0048] The various styles of fabrics on the material rack 1 enter the linear sewing mechanism 2, and the linear sewing mechanism 2 sews these fabrics into strips 6. Then the strips 6 pass through a cloth pulling component 15, a first pattern sewing component 13, another cloth pulling component 15, a second pattern sewing component 14 and the last cloth pulling component 15 in turn. The first pattern sewing component 13 and the second pattern sewing component 14 sew corresponding patterns on the strips 6. The strips 6 coming out of the last cloth pulling component 15 go around the lower side of the rotating shaft 10 and are finally collected by the material collecting rack 5.

[0049] When the material receiving rack 5 collects the strip 6, the sliding sleeve 9 moves the rotating shaft 10 up and down. When the sliding sleeve 9 moves downward and triggers the lower travel switch, the material receiving rack 5 begins to collect the material. The rotating shaft 10 is pulled upward by the strip 6 and simultaneously rotates. When the sliding sleeve 9 triggers the upper travel switch, the material receiving rack 5 stops collecting the material. The pattern sewing mechanism 3 continues to discharge the material, and the strip 6 droops downward. At this time, the rotating shaft 10 slides downward along the sliding rod 8 under the action of gravity. When the sliding sleeve 9 triggers the lower travel switch, the material receiving rack 5 begins to collect the material, and the above process repeats. The length of the strip 6 collected by the material receiving rack 5 each time is the distance between the upper and lower travel switches. This ensures that the length of the strip 6 collected by the material receiving rack 5 is consistent each time, avoiding excessive length of the strip 6 between the material receiving rack 5 and the pattern sewing mechanism 3. It also prevents the strip 6 from contacting the ground and preventing the ground from contaminating the strip 6.

Claims

1. A linear pattern sewing machine, characterized in that: include: Material rack, used to place a variety of different styles of fabrics; The linear sewing mechanism can sew a variety of different styles of fabrics into strips through linear patterns; Pattern sewing mechanism, used for sewing curved patterns on the apron; a buffer assembly, provided on the pattern sewing mechanism; and The material collecting rack is used to intermittently collect the strips coming out of the buffer assembly; Among them, the buffer assembly includes two sliding rods arranged on the pattern sewing mechanism in the up-down direction, two sliding sleeves slidably assembled on the corresponding sliding rods in the up-down direction, a rotating shaft assembled on the two sliding sleeves in the horizontal direction, an upper stroke switch and a lower stroke switch. The strip coming out of the pattern sewing mechanism is used to bypass from the lower side of the rotating shaft. The upper stroke switch and the lower stroke switch are both provided on the pattern sewing mechanism. The upper stroke switch is located above the lower stroke switch. The upper stroke switch and the lower stroke switch are respectively used to contact the sliding sleeves on the corresponding sides. The upper stroke switch is used to control the material receiving rack to stop receiving material, and the lower stroke switch is used to control the material receiving rack to start receiving material. The distance between the upper stroke switch and the lower stroke switch is the length of the strip received by the material receiving rack each time.

2. A linear pattern sewing machine according to claim 1, characterized in that: The rotating shaft is provided with two spaced-apart limiting rings, and the space between the two limiting rings is used for the surrounding bar to pass around.

3. A linear pattern sewing machine according to claim 2, characterized in that: Springs are provided at the upper and lower ends of each sliding rod.

4. A linear pattern sewing machine according to claim 1, characterized in that: The pattern sewing mechanism includes a frame, a first pattern sewing assembly and a second pattern sewing assembly, the first pattern sewing assembly including a first pattern sewing piece movably mounted on the frame along the front-rear direction, the second pattern sewing assembly including a left-right movable unit provided on the frame, a front-rear movable unit provided on the left-right movable unit, and a second pattern sewing piece provided on the front-rear movable unit.

5. A linear pattern sewing machine according to claim 4, characterized in that: The first pattern sewing assembly includes a first motor provided on a frame, a first mounting plate slidably assembled on the frame along the front-rear direction, and a first pattern sewing piece mounted on the first mounting plate. The first motor is connected to the first mounting plate to drive the first mounting plate to move along the front-rear direction.

6. A linear pattern sewing machine according to claim 5, characterized in that: The left-right moving unit includes a second motor provided on the frame, a screw rod rotatably mounted on the frame, and a second mounting plate slidably mounted on the frame in the left-right direction, the screw rod extending in the left-right direction, the second mounting plate being threadedly connected to the screw rod, and the second motor driving the screw rod to drive the second mounting plate to move in the left-right direction; The forward and backward moving unit includes a third motor provided on the second mounting plate, a third mounting plate slidably assembled on the second mounting plate along the forward and backward direction, the second pattern sewing piece is provided on the third mounting plate, and the third motor is connected to the third mounting plate to drive the third mounting plate to move along the forward and backward direction.

7. The linear pattern sewing machine according to claim 4, characterized in that: The pattern sewing mechanism further comprises a plurality of cloth pulling assemblies arranged on the frame, wherein the plurality of cloth pulling assemblies are arranged on the left and right sides of the first pattern sewing assembly and the second pattern sewing assembly.

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