A lockstitch sewing machine for processing polymer fabric products

Abstract

The utility model relates to the field of a flat-bed sewing machine, in particular to a flat-bed sewing machine for processing polymer fabric products. In order to solve the technical problem that personnel are required to watch the flat-bed sewing machine at all times to prevent the fabric from deflecting and wrinkling when conveying the polymer fabric in the prior art, a flat-bed sewing machine head is connected with a fixed end of a cylinder, a telescopic end of the cylinder is connected with a conveying frame, a conveying mechanism is connected to the conveying frame, the conveying mechanism can convey fabric one and fabric two synchronously, the upper surfaces of fabric one and fabric two are in contact with wheel surfaces of a wheel group, a sliding rod is connected to the upper surface of the wheel group wheel frame, the sliding rod is slidably connected in the conveying frame, the sliding rod can rotate, a baffle is connected to the upper end of the sliding rod, the two baffles are connected by an elastic belt, the elastic belt is in a stretched state, a laser transmitter and a photoelectric switch are respectively connected to both sides of the conveying frame, when the fabric deflects, the fabric drives the wheel group to rotate, the baffle shields the laser of the laser transmitter, and the photoelectric switch controls the whole machine to stop running to prevent further deflection and damage to the fabric.

Description

Technical Field

[0001] The utility model relates to the field of a lockstitch sewing machine, in particular to a lockstitch sewing machine used for processing polymer fabric products. Background Art

[0002] In the long history of the textile industry, the flat-bed sewing machine, as a basic and important mechanical equipment, has always played an indispensable role. Its development process is like a precision loom, weaving a magnificent chapter from tradition to modernity. With the rapid progress of polymer material technology, polymer fabrics have gradually become the new favorite of the fashion industry with their unique performance advantages, and at the same time have posed new challenges to traditional sewing technology. In this context, the research and development and innovation of flat-bed sewing machines for processing polymer fabric products are particularly important;

[0003] When the conventional flat-bed sewing machine is conveying polymer fabrics, personnel must be on guard at all times to prevent the fabrics from deflecting and wrinkling. The utility model solves the above problems. Utility Model Content

[0004] The utility model aims to solve the technical problem that when the prior art flat sewing machine conveys polymer fabrics, personnel need to be on guard all the time to prevent the fabrics from deflecting and wrinkling, and further provides a flat sewing machine for processing polymer fabric products.

[0005] A flat sewing machine for processing polymer fabric products comprises: a power assembly, a sewing platform is connected to the upper part of the power assembly, a flat sewing head is connected to the upper part of the sewing platform, the power assembly can provide power for the flat sewing head, fabric one and fabric two are laid on the sewing platform, a sewing needle of the flat sewing head is located at the joint of fabric one and fabric two, the flat sewing head is connected to a fixed end of a cylinder, a telescopic end of the cylinder is connected to a conveying frame, a conveying mechanism is connected to the conveying frame, the conveying mechanism can synchronously convey fabric one and fabric two, the upper surfaces of fabric one and fabric two are in contact with wheel surfaces of a wheel group, a sliding rod is connected to the upper surface of the wheel group wheel frame, the sliding rod is slidably connected to the conveying frame, the sliding rod can rotate, a baffle is connected to the upper end of the sliding rod, the two baffles are connected by an elastic belt, the elastic belt is in a stretched state, a laser emitter and a photoelectric switch are respectively connected to both sides of the conveying frame, the laser of the laser emitter is parallel to the long direction of the baffle when the elastic belt is in a stretched state, the angle change of the baffle can shield the laser of the laser emitter, and the photoelectric switch can control the power assembly and the conveying mechanism to stop running.

[0006] Furthermore, the conveying mechanism includes a motor, which is connected to a conveying frame. The motor output shaft is connected to the conveying shaft through a belt drive. Conveying roller 1 and conveying roller 2 are respectively connected to both ends of the conveying shaft. Conveying roller 1 and conveying roller 2 are respectively in contact with the upper surfaces of fabric 1 and fabric 2. Conveying roller 1 and conveying roller 2 are located behind the flat sewing machine head.

[0007] Furthermore, another group of conveying shafts, conveying roller one and conveying roller two are rotatably connected in the conveying frame in front of the flat-sewing machine head.

[0008] Beneficial effects of the utility model:

[0009] 1. When the fabric deviates, the fabric drives the wheel set to rotate, the baffle blocks the laser of the laser transmitter, and the photoelectric switch controls the whole machine to stop running to prevent further deviation and damage to the fabric;

[0010] 2. The conveyor roller cooperates with the cylinder to keep the conveyor roller pressed against the fabric to prevent the smooth polymer fabric from slipping and causing sewing wrinkles. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0012] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0013] Figure 3 This is a schematic diagram of the structure of the utility model Figure 3 .

[0014] In the figure: power assembly 1; sewing platform 2; flat sewing machine head 3; fabric 1 4; fabric 2 5; cylinder 6; conveyor frame 7; conveying mechanism 8; motor 81; belt drive 82; conveying shaft 83; conveying roller 1 84; conveying roller 2 85; wheel set 9; sliding rod 10; baffle 11; elastic belt 12; laser emitter 13; photoelectric switch 14. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] The rotational connection described in this device refers to the process of baking the bearing on the shaft, providing a spring retaining ring groove on the shaft or the shaft hole, and clamping the elastic retaining ring in the retaining ring groove to achieve axial fixation of the bearing and realize rotation; the articulation refers to a connection method that is active on connecting parts such as hinges, pins and short shafts.

[0017] The utility model will be described in detail below with reference to the accompanying drawings.

[0018] Embodiment 1:

[0019] The following is combined with Figure 1-3 Description of the present embodiment A flat sewing machine for processing polymer fabric products, comprising: a power assembly 1, a sewing platform 2 is connected to the upper part of the power assembly 1, a flat sewing head 3 is connected to the upper part of the sewing platform 2, the power assembly 1 can provide power for the flat sewing head 3, fabric 1 4 and fabric 2 5 are laid on the sewing platform 2, the sewing needle of the flat sewing head 3 is located at the joint of fabric 1 4 and fabric 2 5, the flat sewing head 3 is connected to the fixed end of the cylinder 6, the telescopic end of the cylinder 6 is connected to the conveying frame 7, the conveying frame 7 is connected to the conveying mechanism 8, the conveying mechanism 8 can convey fabric 1 4 and fabric 2 5 synchronously, the upper surface of fabric 1 4 and fabric 2 5 It contacts the wheel surface of the wheel set 9, and a slide bar 10 is connected to the upper surface of the wheel frame of the wheel set 9. The slide bar 10 is slidably connected to the conveyor frame 7, and the slide bar 10 can rotate. A baffle 11 is connected to the upper end of the slide bar 10. The two baffles 11 are connected by an elastic belt 12, and the elastic belt 12 is in a stretched state. A laser emitter 13 and a photoelectric switch 14 are respectively connected to the two sides of the conveyor frame 7. The laser of the laser emitter 13 is parallel to the length of the baffle 11 when the elastic belt 12 is in a stretched state. The angle change of the baffle 11 can block the laser of the laser emitter 13, and the photoelectric switch 14 can control the power assembly 1 and the conveying mechanism 8 to stop running;

[0020] During clamping, the control cylinder 6 contracts and drives the conveyor frame 7 to rise, and the seams of fabrics 1 4 and 2 5 are spliced ​​and placed under the sewing needle of the flat sewing machine head 3, and the conveyor frame 7 is controlled to be lowered to make the conveying mechanism 8 contact with fabrics 1 4 and 2 5 respectively, and fabrics 1 4 and 2 5 are conveyed and sewn. When one of fabrics 1 4 and 2 5 deviates, the fabric drives the wheel group 9 and the slide bar 10 to rotate through the wheel surface of the wheel group 9, and the slide bar 10 drives the baffle 11 to rotate. The baffle 11 blocks the laser of the laser transmitter 13, and the photoelectric switch 14 cannot receive the laser control power component 1 and the conveying mechanism 8 power to stop running to prevent further deviation and damage to the fabric. The buzzer is used to remind the operator to handle it, and the elastic belt 12 drives the baffle 11 to reset, so that the baffle 11 maintains an angle that does not block the laser during normal transportation. Since the photoelectric switch 14 can only control the power to stop running, even if the baffle 11 is automatically reset, the photoelectric switch 14 receives the laser again. Sewing will not continue without the operator restarting the equipment, which greatly improves the safety factor.

[0021] The conveying mechanism 8 includes a motor 81, which is connected to the conveying frame 7. The output shaft of the motor 81 is connected to the conveying shaft 83 through a belt drive 82. The two ends of the conveying shaft 83 are respectively connected to a conveying roller 1 84 and a conveying roller 2 85. The conveying roller 1 84 and the conveying roller 2 85 are respectively in contact with the upper surface of the fabric 1 4 and the fabric 2 5. The conveying roller 1 84 and the conveying roller 2 85 are located behind the lockstitch sewing machine head 3.

[0022] The motor 81 drives the conveying shaft 83 to rotate through the belt transmission 82, and the conveying shaft 83 drives the conveying roller 1 84 and the conveying roller 2 85 to rotate. Since the conveying roller 1 84 and the conveying roller 2 85 are located behind the flat sewing machine head 3, the conveying roller 1 84 and the conveying roller 2 85 rotate to pull the fabric 1 4 and the fabric 2 5 forward for transportation. The conveying roller cooperates with the cylinder 6 to keep the conveying roller pressed against the fabric to prevent the smooth polymer fabric from slipping and causing sewing wrinkles.

[0023] Another set of conveying shafts 83, conveying rollers 1 84 and 2 85 are rotatably connected in the conveying frame 7 in front of the lockstitch machine head 3;

[0024] Cooperate with the front conveyor roller to press tightly to prevent deviation.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A lockstitch sewing machine for processing polymer fabric products, comprising: A power assembly (1), the upper part of the power assembly (1) is connected to a sewing platform (2), the upper part of the sewing platform (2) is connected to a flat sewing machine head (3), and the power assembly (1) can provide power for the flat sewing machine head (3). The invention is characterized in that: a fabric 1 (4) and a fabric 2 (5) are laid on a sewing platform (2); a sewing needle of a flat sewing machine head (3) is located at the joint of the fabric 1 (4) and the fabric 2 (5); the flat sewing machine head (3) is connected to a fixed end of a cylinder (6); the telescopic end of the cylinder (6) is connected to a conveying frame (7); a conveying mechanism (8) is connected to the conveying frame (7); the conveying mechanism (8) can convey the fabric 1 (4) and the fabric 2 (5) synchronously; the upper surfaces of the fabric 1 (4) and the fabric 2 (5) are in contact with the wheel surface of a wheel group (9); the upper surface of the wheel frame of the wheel group (9) is connected to a sliding rod (10); the sliding rod (10) is slidably connected to the conveying frame (7); In the conveying frame (7), the slide bar (10) can rotate, the upper end of the slide bar (10) is connected to a baffle (11), the two baffles (11) are connected by an elastic band (12), the elastic band (12) is in a stretched state, and the two sides of the conveying frame (7) are respectively connected to a laser emitter (13) and a photoelectric switch (14), the laser of the laser emitter (13) is parallel to the length of the baffle (11) when the elastic band (12) is in a stretched state, the angle change of the baffle (11) can block the laser of the laser emitter (13), and the photoelectric switch (14) can control the power assembly (1) and the conveying mechanism (8) to stop running.

2. A lockstitch sewing machine for processing polymer fabric products according to claim 1, characterized in that: The conveying mechanism (8) comprises a motor (81), the motor (81) is connected to a conveying frame (7), an output shaft of the motor (81) is connected to a conveying shaft (83) through a belt drive (82), two ends of the conveying shaft (83) are respectively connected to a conveying roller 1 (84) and a conveying roller 2 (85), the conveying roller 1 (84) and the conveying roller 2 (85) are respectively in contact with the upper surface of the fabric 1 (4) and the fabric 2 (5), and the conveying roller 1 (84) and the conveying roller 2 (85) are located behind the lockstitch sewing machine head (3).

3. A lockstitch sewing machine for processing polymer fabric products according to claim 2, characterized in that: Another group of conveying shafts (83), conveying roller 1 (84) and conveying roller 2 (85) are rotatably connected in the conveying frame (7) in front of the flat-sewing machine head (3).

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