Chain belt sewing equipment

Abstract

The invention discloses zipper belt sewing equipment, and relates to the field of garment processing. A zipper belt sewing device comprises a rack, a sewing machine head, a cloth conveying device and a zipper tooth traction device. The machine frame is provided with a working table top, and the sewing machine head comprises a sewing needle. The cloth conveying device comprises a clamping plate used for bearing and tensioning cloth, and the clamping plate can move in the first direction and is used for conveying the cloth to the working table top. The chain tooth traction device is used for conveying chain teeth to the working table in the first direction; the cloth conveying device and the chain tooth traction device can conduct synchronous conveying. The problem that in the prior art, sheet-shaped or special-shaped cloth of different sizes cannot be conveyed can be solved.

Description

Technical Field

[0001] This application belongs to the technical field of clothing processing, and specifically relates to a chain belt sewing device. Background Art

[0002] Currently, some clothing is sewn with zipper tapes. During the production process of clothing, the zipper tapes need to be produced separately first, that is, the chain teeth are first sewn onto the cloth tape, and then the cloth tape is sewn onto the clothing. This production method will make the production process more cumbersome and increase the material consumption of the cloth tape.

[0003] In order to improve production efficiency and reduce material usage, some other clothing has removed the cloth tape and directly sewn the chain teeth onto the clothing. This method can not only reduce the production steps and improve production efficiency, but also eliminate the need for cloth tape, reduce production materials, and is beneficial to cost reduction.

[0004] However, some zipper sewing machines in the related art are only applicable to sewing chain teeth onto long strip-shaped cloth tapes, and use tension wheels and conveyor wheels to tension and convey the long strip-shaped cloth tapes. However, since the clothing is made of sheet-shaped or irregularly shaped fabrics of different sizes, the traditional tension wheels and conveyor wheels cannot achieve the tensioning and conveying of the fabrics. Therefore, currently, the fabrics can only be loaded manually, but due to human factors, problems such as the fabrics being prone to wrinkles and the feeding speeds of the chain teeth and the fabrics being unstable are likely to occur. Summary of the Invention

[0005] The purpose of the embodiments of this application is to provide a chain belt sewing device that can solve problems such as the inability to convey sheet-shaped or irregularly shaped fabrics of different sizes in the related art.

[0006] To solve the above technical problems, this application is implemented as follows: The embodiments of this application provide a chain belt sewing device, including: a frame, and a sewing head, a fabric conveying device, and a chain tooth traction device respectively provided on the frame; The frame is provided with a workbench surface, and the sewing head includes a sewing needle corresponding to the workbench surface; The fabric conveying device includes a clamping plate for carrying and tensioning the fabric, and the clamping plate is movable along a first direction for conveying the fabric to the workbench surface; The chain tooth traction device is used for conveying chain teeth to the workbench surface along the first direction; The fabric conveying device and the chain tooth traction device can convey synchronously.

[0007] In the embodiments of the present application, during the process of conveying the fabric, the fabric can be clamped and fixed by the clamping plates. On the one hand, it can ensure that the fabric does not move randomly during the conveying process, improving the conveying accuracy of the fabric. On the other hand, it can also meet the conveying requirements of sheet-shaped or irregularly shaped fabrics of different sizes through the clamping action of the clamping plates, and ensure that the fabric does not wrinkle or slack during the conveying process, improving the applicability of the fabric conveying device and further improving the applicability of the entire chain stitch sewing equipment. Moreover, the fabric and the chain teeth can be synchronously conveyed through the fabric conveying device and the chain tooth traction device, preventing the situation that the normal sewing process is affected due to the asynchronous conveying of the fabric and the chain teeth. Description of the Drawings

[0008] Figure 1 Schematic structural diagrams of the chain stitch sewing equipment, the chain teeth and the fabric disclosed in the embodiments of the present application; Figure 2 Schematic structural diagrams of the sewing head, the fabric conveying device, the chain tooth traction device, the guide wheel, the guide rail and the fabric disclosed in the embodiments of the present application; Figure 3 Schematic structural diagrams of the fabric conveying device and the fabric disclosed in the embodiments of the present application; Figure 4 Schematic structural diagrams of the sewing head, the chain tooth traction device, the guide wheel and the chain teeth disclosed in the embodiments of the present application; Figure 5 Schematic partial structural diagrams of the frame and the chain tooth traction device disclosed in the embodiments of the present application; Figure 6 Schematic partial structural diagrams of the frame, the sewing head and the chain tooth guiding device disclosed in the embodiments of the present application; Figure 7 Schematic structural diagrams of the cover plate and the roller disclosed in the embodiments of the present application; Figure 8 Schematic structural diagrams of the base disclosed in the embodiments of the present application; Figure 9 Schematic structural diagrams of the sewing head and the first type of sewing needle sensor disclosed in the embodiments of the present application; Figure 10 Schematic structural diagrams of the sewing head and the second type of sewing needle sensor disclosed in the embodiments of the present application.

[0009] Description of the Reference Numerals: 10 - Frame; M - Workbench surface; 11 - Guide rail; 11a - Preparation section; 11b - Sewing section; 20 - Sewing head; 21 - Sewing needle; 22 - Sewing motor; 23 - Sewing needle mounting post; 30 - Fabric conveying device; 31 - Second driving motor; 32 - Bracket; 33 - Clamping plate; 40 - Chain tooth traction device; 41 - First drive motor; 42 - Traction wheel; 421 - Annular groove; 43 - Pressing wheel; 50 - Controller; 60 - Chain tooth guiding device; 61 - Base; 611 - Chain tooth guiding groove; 6121 - Left wing plate; 6122 - Right wing plate; 62 - Cover plate; 621 - Avoidance hole; 622 - Guiding section; 6221 - Through hole; 63 - Roller; 70 - Storage device; 81 - First sensor; 82 - Trigger; 83 - Suture needle inductor; 91 - Guide wheel. Detailed implementation manners

[0010] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0011] The terms "first", "second", etc. in the description and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the description and claims means at least one of the connected objects, and the character " / ", generally represents an "or" relationship between the associated objects before and after.

[0012] Next, the embodiments of the present application will be described in detail with reference to the accompanying drawings through specific embodiments and their application scenarios.

[0013] Refer to Figures 1 to 10 , an embodiment of the present application discloses a chain belt sewing device, and the disclosed chain belt sewing device includes a frame 10, a sewing head 20, a fabric conveying device 30, and a chain tooth traction device 40 respectively provided on the frame 10.

[0014] Among them, the frame 10 may be provided with a workbench surface M, and the sewing head 20 includes a suture needle 21 corresponding to the workbench surface M. The suture needle 21 can perform continuous reciprocating motion for guiding the sewing thread to perform sewing work.

[0015] The fabric conveying device 30 includes a clamping plate 33 for carrying and tensioning the fabric. The clamping plate 33 is movable in the first direction and is used to convey the fabric to the workbench surface M. Optionally, the fabric can be a cut sheet material. There is no continuity between one fabric and another fabric, and each fabric has a sewing part. After the clamping plate 33 clamps the fabric, the sewing part of the fabric is exposed at the outer side edge of the clamping plate 33.

[0016] Based on the above settings, by setting the clamping plate 33 to clamp the fabric, the fabric can be effectively clamped and fixed, and the sewing part of the fabric can be well unfolded and tensioned during conveying, so that the fabric and the chain teeth move synchronously.

[0017] Optionally, the fabric can have a sewing part. When the clamping plate 33 carries the fabric forward, the sewing part can pass under the sewing needle 21, so as to pierce the sewing part through the reciprocating movement of the sewing needle 21, facilitating the sewing of the fabric.

[0018] The chain tooth traction device 40 is used to convey the chain teeth to the workbench surface M in the first direction. Among them, the chain tooth traction device 40 can make the chain teeth pass under the sewing needle 21, so as to sew the chain teeth to the fabric through the reciprocating movement of the sewing needle 21.

[0019] In the embodiment of the present application, the fabric conveying device 30 and the chain tooth traction device 40 can convey synchronously.

[0020] Based on the above settings, in the process of conveying the fabric in the embodiment of the present application, the fabric can be clamped and fixed by the clamping plate 33. On the one hand, it can ensure that the fabric does not move randomly during conveying, improving the conveying accuracy of the fabric. On the other hand, it can also meet the conveying requirements of sheet-shaped or special-shaped fabrics of different sizes through the clamping action of the clamping plate 33, and ensure that the fabric does not wrinkle or slack during conveying, improving the applicability of the fabric conveying device 30 and further improving the applicability of the entire chain belt sewing equipment. And, the fabric and the chain teeth can be conveyed synchronously by the fabric conveying device 30 and the chain tooth traction device 40, preventing the situation that the normal sewing process is affected due to the asynchronous conveying of the fabric and the chain teeth.

[0021] Compared with the manual feeding method, the embodiment of the present application well solves the problems of offset, different speeds, and different tensioning degrees during manual feeding, and can improve the sewing aesthetics of the chain teeth and the fabric.

[0022] In some embodiments, the chain belt sewing equipment may further include a controller 51. The controller 51 is respectively signal-connected to the fabric conveying device 30, the chain tooth traction device 40, and the sewing head 20, and is used to control the synchronous conveying of the fabric conveying device 30 and the chain tooth traction device 40, and control the sewing head 20 to sew the chain teeth and the fabric at the workbench surface M.

[0023] Based on the above settings, under the control of the controller 50, synchronous control of the fabric conveying device 30 and the chain tooth traction device 40 can be achieved, thereby ensuring the synchronization of the fabric conveying by the fabric conveying device 30 and the chain tooth conveying by the chain tooth traction device 40, so as to prevent the situation that the chain tooth conveying and the fabric conveying are asynchronous and affect normal sewing.

[0024] Among them, the chain tooth traction device 40 may include a first driving motor 41, the fabric conveying device 30 may include a second driving motor 31, and the controller 50 may be respectively signal-connected to the first driving motor 41 and the second driving motor 31, and is used to control the first driving motor 41 and the second driving motor 31 to rotate synchronously by a preset step length, and make the fabric conveying device 30 and the chain tooth traction device 40 convey synchronously. Based on this, by controlling the first driving motor 41 and the second driving motor 31 by the controller 50, the synchronization of fabric conveying and chain tooth conveying can be ensured.

[0025] Among them, the preset step length may be equal to the predetermined pitch of the synchronous movement of the fabric and the chain teeth, and the ratio of the predetermined pitch to the pitch of the chain teeth is N, where N is a natural number greater than or equal to 1.

[0026] Optionally, the chain teeth and the fabric can synchronously move a predetermined pitch L1, the pitch of the chain teeth is L0, L1:L0 = N, where N is a natural number (or positive integer) greater than or equal to 1, that is, the sewing needle 21 can achieve fine sewing of one chain tooth pitch, or can achieve asynchronous stitching across multiple chain tooth pitches. By controlling the first driving motor 41 and the second driving motor 31 by the controller 50 to synchronously complete the preset step length, and then controlling the predetermined pitch of the synchronous movement of the chain teeth and the fabric, not only can the preset step length of the motor be set to adapt to different specifications of chain teeth, improving the versatility of the equipment, but also different stitch patterns can be achieved by adjusting the predetermined pitch of the synchronous movement of the chain teeth and the fabric.

[0027] In addition, the chain belt sewing device may further include a sewing needle inductor 83, which is provided on the sewing head 20 and is used to detect the lifting action of the sewing needle 21, and the sewing needle inductor 83 is signal-connected to the controller 50. Based on this, the controller 50 is used to control the first driving motor 41 and the second driving motor 31 to rotate synchronously by a preset step length when receiving the sewing needle lifting action signal sent by the sewing needle inductor 83, and control the sewing needle 21 to complete the piercing action after a first preset time period.

[0028] Specifically, the sewing needle sensor 83 is used to sense the action of lifting the sewing needle 21 and send a sewing needle 21 lifting action signal to the controller 50. After receiving the sewing needle 21 lifting action signal, the controller 50 controls the first driving motor 41 and the second driving motor 31 to synchronously rotate a preset step length, and then pauses to wait for the sewing needle 21 to complete the downward piercing action; when the first driving motor 41 and the second driving motor 31 synchronously complete the predetermined step length, the chain teeth and the fabric move synchronously in the first direction by a predetermined pitch, and the predetermined pitch is equal to the predetermined step length; the sewing needle 21 can perform a piercing action to guide the sewing thread to sew between the chain teeth and the fabric.

[0029] Therefore, in the embodiment of the present application, by setting the fabric conveying device 30 and the chain tooth traction device 40, and using the controller 50 to control the synchronous rotation and pause of the first driving motor 41 and the second driving motor 31, the fabric and the chain teeth are not moved to convey materials to the sewing head 20, which can not only provide stable synchronous feeding, but also realize the automation and intelligence of feeding, greatly improving the production efficiency of clothing.

[0030] Under the control of the controller 50, the first driving motor 41 and the second driving motor 31 can perform intermittent start or pause actions. This is because the sewing action of the sewing needle 21 includes lifting above the fabric and moving downward through the chain teeth and the fabric. If the sewing needle 21 pulls the chain teeth and the fabric when moving downward through the chain teeth and the fabric, the sewing needle 21 will be damaged. Therefore, it is necessary to control the first driving motor 41 and the second driving motor 31 to start to drive the chain teeth and the fabric forward respectively when the sewing needle 21 is lifted above the fabric, which is beneficial to protecting the chain belt sewing equipment.

[0031] In the embodiment of the present application, the synchronous movement of the chain teeth and the fabric by a predetermined pitch is controlled by the synchronous rotation of the first driving motor 41 and the second driving motor 31 by a predetermined step length. The means for controlling the rotation step length of the first driving motor 41 and the second driving motor 31 can include the following three types: First, after receiving the sewing needle 21 lifting action signal, the controller 50 controls the first driving motor 41 and the second driving motor 31 to synchronously rotate for a predetermined time length T to control the predetermined step length of rotation, and after the predetermined time length T, controls the first driving motor 41 and the second driving motor 31 to synchronously pause to wait for the sewing needle 21 to complete the downward piercing action.

[0032] Second, after receiving the signal of the lifting action of the suture needle 21, the controller 50 controls the first driving motor 41 and the second driving motor 31 to rotate synchronously. The suture needle inductor 83 can sense the downward pressing action of the suture needle 21 and send a downward pressing signal of the suture needle 21 to the controller 50. After receiving the downward pressing signal of the suture needle 21, the controller 50 controls the first driving motor 41 and the second driving motor 31 to pause rotating synchronously to wait for the suture needle 21 to complete the downward piercing action. That is, the controller 50 realizes controlling the first driving motor 41 and the second driving motor 31 to rotate synchronously by a predetermined step length through the sensing signal of the suture needle inductor 83. Of course, in addition to using one suture needle inductor 83 to sense the action of the suture needle 21, two independent suture needle inductors 83 can also be set to separately detect the lifting and downward pressing actions of the suture needle 21.

[0033] Third, both the first driving motor 41 and the second driving motor 31 are servo motors. The controller 50 may include a pulse signal generator (not shown in the figure). After receiving the signal of the lifting action of the suture needle 21, the controller 50 can send the same predetermined number of pulse signals to the first driving motor 41 and the second driving motor 31 simultaneously through the pulse signal generator to control the first driving motor 41 and the second driving motor 31 to rotate synchronously by a predetermined step length, that is, rotate synchronously by an angle and a number of turns, and then let the pulse signal generator pause sending pulse signals to control the first driving motor 41 and the second driving motor 31 to pause simultaneously to wait for the suture needle 21 to complete the downward piercing action.

[0034] In some embodiments, the controller 50 can also time the synchronous rotation of the first driving motor 41 and the second driving motor 31 through a timer (not shown in the figure), and control the first driving motor 41 and the second driving motor 31 to pause synchronously for a first preset duration after the synchronous rotation duration reaches a second preset duration.

[0035] Reference Figure 4 and Figure 6 Referring to

[0036] Optionally, the sewing needle 21 is detachably mounted at the bottom of the sewing needle mounting post 23, and the sewing needle mounting post 23 can perform continuous reciprocating motion under the drive of the sewing motor 22 so as to drive the sewing needle 21 to perform reciprocating motion.

[0037] In addition, the sewing motor 22 can include an independently controlled motor, or can be signal-connected to the controller 50 and then uniformly controlled by the controller 50. It should be noted here that there is no necessary synchronous action relationship between the sewing motor 22, the first driving motor 41 and the second driving motor 31, but the driving sequence of the sewing motor 22 can be prior to the first driving motor 41 and the second driving motor 31, in order to allow the controller 50 to first calculate the position state of the sewing needle 21 through the signal sent by the sewing sensor, and then control the first driving motor 41 and the second driving motor 31 to drive the chain teeth and the fabric to move respectively to avoid the sewing needle 21 passing through below.

[0038] The sewing needle sensor 83 is a sensor for sensing the action of the sewing needle 21. In order to facilitate the detection of the action of the sewing needle 21, the sewing needle sensor 83 can be located on the side of the sewing needle mounting post 23 for detecting the reciprocating sewing needle mounting post 23. When the sewing needle mounting post 23 passes through the sewing needle sensor 83 from bottom to top, the sewing needle sensor 83 is triggered and sends a sewing needle 21 lifting action signal to the controller 50; similarly, when the sewing needle mounting post 23 passes through the sewing needle sensor 83 from top to bottom, the sewing needle sensor 83 can also be triggered and send a sewing needle 21 pressing down signal to the controller 50.

[0039] Optionally, a trigger can also be provided on the sewing needle mounting post 23. The sewing needle mounting post 23 can drive the trigger to move up and down together. When the trigger approaches the sewing needle sensor 83, the sewing needle sensor 83 is triggered and sends a sewing needle 21 lifting action signal or a sewing needle 21 pressing down signal to the controller 50.

[0040] The specific structures of the sewing needle sensor 83 and the sewing needle mounting post 23 are diverse. The first structure is as Figure 1 , Figure 2 , Figure 4 shown. Optionally, the sewing needle sensor 83 can be a Hall sensor, and a magnet is installed on the upper part of the sewing needle mounting post 23. Or, the sewing needle sensor 83 is a photoelectric sensor, and the top (i.e., the first end) of the sewing needle mounting post 23 can move back and forth to achieve occlusion or separation.

[0041] Furthermore, a notch can be opened on the sewing needle mounting post 23, as Figure 10 shown. The sewing needle sensor 83 can be a touch microswitch, and a pressing block can be provided on the sewing needle mounting post 23 to generate action signals by touching the microswitch respectively when the sewing needle mounting post 23 moves up and down.

[0042] Regardless of which of the above methods is adopted, by setting the sewing needle sensor 83, the lifting or pressing action of the sewing needle 21 can be converted into a signal and sent to the controller 50, so that the controller 50 can accurately obtain the position status of the sewing needle 21 and regularly start and stop the first drive motor 41 and the second drive motor 31, thereby avoiding interference between the sewing needle 21 and the chain teeth and fabric, and well protecting the chain belt sewing equipment.

[0043] To achieve the movement of the clamping plate 33 along the first direction, the cloth conveying device 30 may further include a bracket 32, such as Figure 2 and Figure 3 The clamping plate 33 is disposed on the bracket 32, the bracket 32 is slidably connected to the frame 10 along a first direction, and the second driving motor 31 is drivingly connected to the bracket 32 for driving the bracket 32 to move along the first direction.

[0044] Optionally, the clamping plate 33 is detachably mounted on the bracket 32, so that a plurality of clamping plates 33 can be provided for disassembly, assembly and replacement, thereby improving processing efficiency.

[0045] Taking into account the situation that the chain belt needs to be sewn between two pieces of cloth, in the embodiment of the present application, the cloth conveying device 30 may include two groups of clamps 33, and the two groups of clamps 33 may be arranged at intervals in the horizontal direction, one group of clamps 33 is used to clamp one of the pieces of cloth, and the other group of clamps 33 can be used to clamp the other piece of cloth. In this way, the two pieces of cloth can be conveyed synchronously by driving the two groups of clamps 33 to move synchronously along the first direction to ensure the conveying accuracy of the two pieces of cloth.

[0046] Optionally, the bracket 32 may be a frame, and the clamping plate 33 may be connected to the inner side of the frame. Exemplarily, the bracket 32 may be a polygonal frame, such as a rectangular frame, a square frame, and the like.

[0047] Optionally, the first drive motor 41 and the bracket 32 may be connected to each other via a screw slider, a worm gear, a gear rack, or the like.

[0048] Based on the above arrangement, under the driving action of the second driving motor 31, the bracket 32 can drive the clamping plate 33 to move along the first direction (i.e., from front to rear), thereby transporting the cloth clamped by the clamping plate 33 to the work surface M for suturing by the sewing needle 21.

[0049] In order to achieve smooth sliding of the bracket 32, the frame 10 can be provided with a guide rail 11, which extends along the first direction. The bracket 32 is slidably connected to the guide rail 11. In this way, the guide rail 11 can guide and limit the bracket 32 to improve the sliding stability and sliding accuracy of the bracket 32.

[0050] refer to Figures 1 to 3, in some embodiments, the chain belt sewing device may further include a first sensor 81. The first sensor 81 is disposed on the guide rail 11 and is in signal connection with the controller 50 to facilitate sending signals to the controller 50; correspondingly, the carriage 32 may be provided with a trigger 82, and the trigger 82 is used to trigger the first sensor 81. In addition, the second drive motor 31 is in signal connection with the controller 50, so that a control signal can be sent to the second drive motor 31 through the controller 50 to control the operation of the second drive motor 31.

[0051] Based on the above settings, under the control of the controller 50, during the process of driving the carriage 32 to move in the first direction by the second drive motor 31, the trigger 82 will move synchronously with the carriage 32. When the trigger 82 moves to a position where it cooperates with the first sensor 81, the first sensor 81 is triggered and sends a signal to the controller 50. After analysis and judgment by the controller 50, the moving position of the carriage 32 is determined.

[0052] Reference Figure 2 , the guide rail 11 is divided into a preparation section 11a and a sewing section 11b by the first sensor 81, that is, the sliding stroke of the carriage 32 along the guide rail 11 is divided into a preparation section 11a and a sewing section 11b; along the first direction, the preparation section 11a is located downstream of the sewing section 11b, that is, as the carriage 32 moves in the first direction, the trigger 82 is first located in the area corresponding to the preparation section 11a, and then after the trigger 82 triggers the first sensor 81, it moves to the area corresponding to the sewing section 11b.

[0053] When the trigger 82 corresponds to the preparation section 11a, the controller 50 can control the second drive motor 31 to drive the carriage 32 to slide at a first speed; when the trigger 82 corresponds to the sewing section 11b, the controller 50 controls the first drive motor 41 and the second drive motor 31 to rotate synchronously, and drives the carriage 32 to intermittently slide at a second speed through the second drive motor 32, and the second speed is less than the first speed.

[0054] Specifically, the controller 50 can independently control the second drive motor 31 to drive the carriage 32 and the clamping plate 33 to move quickly in the preparation section 11a to improve the transmission speed of the fabric; when the trigger 82 of the carriage 32 triggers the first sensor 81, the first sensor 81 sends a first signal to the controller 50. After receiving the first signal of the first sensor 81, the controller 50 controls the second drive motor 31 to start and controls the carriage 32 to intermittently operate at a second speed in the sewing section 11b. In addition, after receiving the first signal of the first sensor 81, the controller 50 can also control the chain tooth traction device 40 (or the first drive motor 41) to operate synchronously with the second drive motor 31 to control the fabric and the chain teeth to pass through the sewing head 20 at the same speed in the sewing section 11b to achieve sewing.

[0055] It should be noted here that since the sewing needle 21 reciprocates in the up and down direction to puncture the fabric, while the sewing needle 21 punctures the fabric, the fabric needs to stop moving to prevent movement interference caused by the different movement directions of the sewing needle and the fabric. Based on this, in the embodiment of the present application, the controller 50 controls the sewing head 20 and the second drive motor 31 respectively. When the sewing needle 21 is lifted, the fabric is conveyed, that is, the action of the sewing needle 21 puncturing the fabric and the action of the fabric movement do not occur simultaneously, ensuring the normal sewing of the fabric by the sewing needle 21.

[0056] In addition, since the first speed is greater than the second speed, the transmission time of the fabric before sewing can be shortened, which is beneficial to improving the sewing efficiency.

[0057] Of course, when the trigger member 82 of the bracket 32 triggers the first sensor 81, the first sensor 81 sends a first signal to the controller 50. After receiving the first signal of the first sensor 81, the controller 50 can also control the chain tooth traction device 40 to start and make the speed of the chain tooth traction device 40 conveying the chain teeth the same as the conveying speed of the fabric to ensure the synchronous conveying of the chain teeth and the fabric. In the embodiment of the present application, the distance that the bracket 32 moves along the guide rail 11 with the clamping plate 33 is controlled by the controller 50. Corresponding to the above three methods of controlling the rotation step of the first drive motor 41 and the second drive motor 31, the controller 50 can achieve the control of the moving distance through the number of pulses output, the rotation time, and the sewing needle inductor 83.

[0058] Optionally, the control can also be achieved by using a sensor provided on the guide rail 11. Specifically, a second sensor signal-connected to the controller 50 is provided on the guide rail 11. The second sensor is arranged at an interval from the first sensor 81 (for example, the second sensor is arranged behind the first sensor 81) and is used to detect the maximum stroke position of the movement of the bracket 32. When the bracket 32 moves through the sewing head 20 with the clamping plate 33, the second sensor can be triggered. The second sensor sends a second signal to the controller 50, and the controller 50 controls the first drive motor 41 and the second drive motor 31 to pause rotation after receiving the second signal of the second sensor.

[0059] In addition, the controller 50 can also control the second drive motor 31 to drive the bracket 32 and the splint 33 to move backward, and the specific control methods include at least the following: the first is achieved through a timer, specifically, after the controller 50 controls the first drive motor 41 and the second drive motor 31 to rotate synchronously for a predetermined step length, after reaching a set time length (i.e., a second preset time length), the controller 50 controls the second drive motor 31 to rotate in the opposite direction; the second is achieved through a button or a sensor, wherein the button or the sensor is connected to the controller 50 signal, and after the button or the sensor is triggered, it sends a backward signal to the controller 50, and the controller 50 controls the second drive motor 31 to rotate in the opposite direction after receiving the backward signal. Optionally, the sensor here can be the above-mentioned second sensor.

[0060] refer to Figure 4 and Figure 5 In some embodiments, the chain tooth traction device 40 may include a traction wheel 42 and a pressure wheel 43. The traction wheel 42 and the pressure wheel 43 are arranged along the second direction for clamping the chain teeth, wherein the second direction is perpendicular to the first direction, and the first drive motor 41 is in transmission connection with the traction wheel 42. Based on this, the chain teeth between the traction wheel 42 and the pressure wheel 43 can be clamped, and the first drive motor 41 drives the traction wheel 42 to rotate. Under the action of friction, the traction wheel 42 drives the chain teeth to move along the first direction, so that the chain teeth can pass through the work surface M.

[0061] Optionally, the chain teeth may be a long continuous belt structure, and the chain teeth may be pulled by the chain tooth pulling device 40 so as to pass through the work surface M.

[0062] Optionally, the outer peripheral wall of the traction wheel 42 may be provided with an annular groove 421, such as Figure 5 In addition, the outer peripheral wall of the clamping wheel 43 can press against the outer peripheral wall of the traction wheel 42 and cover a part of the annular groove 421. Under the driving action of the first driving motor 41, the traction wheel 42 rotates to pull the chain teeth placed in the annular groove 421 to move.

[0063] refer to Figure 1 and Figure 4 In some embodiments, the chain belt sewing device may further include a chain tooth guiding device 60, which is disposed on the work surface M. The chain tooth guiding device 60 is provided with a guiding space extending along the first direction, and the guiding space is used for passing the chain teeth. In this way, the chain tooth guiding device 60 can guide the chain teeth to ensure the position accuracy of the chain teeth during the transmission process.

[0064] refer to Figures 6 to 8The chain tooth guiding device 60 may include a base 61 and a cover plate 62. The base 61 is arranged on the work surface M, and a chain tooth guiding groove 611 is provided on the surface of the base 61 facing the sewing needle 21. The chain tooth guiding groove 611 extends along the first direction. In this way, the chain tooth guiding groove 611 can accommodate the chain tooth and guide the chain tooth.

[0065] Optionally, the chain tooth guide groove 611 may include a groove bottom wall and two side groove side walls, i.e., a left groove side wall and a right groove side wall, and the groove bottom wall, the left groove side wall and the right groove side wall define a groove cavity, and the chain tooth passes through the groove cavity and can move along the extension direction of the chain tooth guide groove 611.

[0066] The cover plate 62 is arranged at the notch of the tooth guide groove 611, and the cover plate 62 can be close to or away from the notch, and the cover plate 62 is provided with an escape hole 621 for passing the sewing needle 21. Based on this, the notch of the tooth guide groove 611 can be covered by the cover plate 62 to prevent the tooth from being separated from the notch of the tooth guide groove 611.

[0067] Optionally, the main body of the suturing machine head 20 may also be provided with a connecting column extending downward, which can move up and down, and the cover plate 62 is connected to the bottom end of the connecting column, so that the cover plate 62 can move up and down with the connecting column, so that the cover plate 62 can be close to or away from the slot.

[0068] Optionally, the width of the cover plate 62 may be less than or equal to the width of the tooth guide groove 611, wherein the width of the tooth guide groove 611 refers to the maximum width between the left groove side wall and the right groove side wall. Based on this, when the cover plate 62 moves to the notch close to the tooth guide groove 611, a cloth-passing gap is formed between the cover plate 62 and the left groove side wall and the right groove side wall, respectively, so that the sewing part of the cloth can extend between the cover plate 62 and each groove side wall through the cloth-passing gap to ensure that the cloth can move smoothly.

[0069] refer to Figure 8 In some embodiments, the base 61 may include a left wing plate 6121 and a right wing plate 6122, wherein the left wing plate 6121 and the right wing plate 6122 are respectively arranged on the left and right sides of the chain element guide groove 611, and the surfaces of the left wing plate 6121 and the right wing plate 6122 are lower than the end surfaces of the left groove side wall and the right groove side wall. The surfaces of the left wing plate 6121 and the right wing plate 6122 can respectively support the passing clamping plate 33 to ensure the stable movement of the clamping plate 33.

[0070] Optionally, the front end portions of the left wing plate 6121 and the right wing plate 6122 (i.e., the end portions facing the cloth conveying device 30 ) are respectively provided with chamfers, which facilitate the clamping plate 33 to slide smoothly onto the left wing plate 6121 and the right wing plate 6122 .

[0071] refer toFigure 6 and Figure 7 In some embodiments, the cover plate 62 may have a guiding section 622 which is provided with a through hole 6221 penetrating up and down. A rotatable roller 63 is arranged in the through hole 6221, and at least a part of the roller 63 protrudes from the surface of the guiding section 622 facing the chain tooth guiding groove 611, so that at least a part of the roller 63 can protrude into the notch of the chain tooth guiding groove 611 to facilitate squeezing the fabric.

[0072] Optionally, one end of the guiding section 622 facing the fabric conveying device 30 may extend out of the chain tooth guiding groove 611, and a chamfer may be provided on one side of this end facing the chain tooth guiding groove 611 to facilitate the input of the clamping plate 33.

[0073] Referring to Figure 1 and Figure 4 In some embodiments, the chain belt sewing device may further include a storage device 70 and a guiding wheel 91. The storage device 70 is used for storing strip-shaped chain teeth, and the guiding wheel 91 is arranged between the chain tooth traction device 40 and the storage device 70 for guiding the movement of the chain teeth.

[0074] In summary, the chain belt sewing device in the embodiments of the present application may have the following technical advantages: First, by providing the fabric conveying device 30 and the chain tooth traction device 40, and using the controller 50 to control the synchronous rotation or pause of the first drive motor 41 and the second drive motor 31, the synchronous movement of the fabric and the chain teeth is realized, so as to synchronously convey the chain teeth and the fabric to the sewing head 20. It can not only provide stable synchronous feeding, but also realize the automation and intelligence of feeding, and improve the processing efficiency.

[0075] Second, by providing the clamping plate 33 to clamp the fabric, the fabric can be effectively clamped and fixed, so that the sewing part of the fabric can be well unfolded and tensioned. Then, by automatically controlling the second drive motor 31 for conveying, the fabric and the chain teeth can move synchronously well, and the double-material speed is stable, effectively solving the problems of fabric deviation, uneven speed, and uneven tension during manual feeding, which is beneficial to improving the sewing aesthetics of the fabric and the chain teeth.

[0076] Third, by providing the sewing needle inductor 83, the up or down movement of the sewing needle 21 can be converted into a signal and sent to the controller 50, so that the controller 50 can accurately obtain the position state of the sewing needle 21, and perform regular start-stop control on the first drive motor 41 and the second drive motor 31, thereby avoiding interference between the sewing needle 21 and the chain teeth and the fabric, which is beneficial to protecting the chain belt sewing device.

[0077] Fourth, the controller 50 controls the first drive motor 41 and the second drive motor 31 to synchronously complete a predetermined step length, thereby controlling the predetermined pitch of the synchronous movement of the chain teeth and the fabric. This not only enables the adaptation of chain teeth of different specifications by controlling the predetermined step length of the motor, improving the versatility of the equipment, but also enables the realization of stitching stitches with different spans by adjusting the predetermined pitch of the synchronous movement of the chain teeth and the fabric.

[0078] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A chain belt sewing device, characterized in that, Comprising: A frame (10), a sewing head (20), a fabric conveying device (30) and a chain tooth traction device (40) respectively provided on the frame (10); The frame (10) is provided with a workbench surface (M), and the sewing head (20) includes a sewing needle (21) correspondingly arranged with the workbench surface (M); The fabric conveying device (30) includes a clamping plate (33) for carrying and tensioning the fabric, and the clamping plate (33) is movable along a first direction for conveying the fabric to the workbench surface (M); The chain tooth traction device (40) is used for conveying chain teeth to the workbench surface (M) along the first direction; The fabric conveying device (30) and the chain tooth traction device (40) can be synchronously conveyed.

2. The chain belt stitching device according to claim 1, wherein, The chain belt sewing device further includes a controller (50), and the controller (50) is respectively signal-connected to the fabric conveying device (30), the chain tooth traction device (40) and the sewing head (20) for controlling the synchronous conveyance of the fabric conveying device (30) and the chain tooth traction device (40), and controlling the sewing head (20) to sew the chain teeth and the fabric at the workbench surface (M).

3. The chain belt stitching device according to claim 2, wherein The chain tooth traction device (40) includes a first driving motor (41), and the fabric conveying device (30) includes a second driving motor (31); The controller (50) is respectively signal-connected to the first driving motor (41) and the second driving motor (31) for controlling the first driving motor (41) and the second driving motor (31) to synchronously rotate a preset step length and enabling the fabric conveying device (30) and the chain tooth traction device (40) to be synchronously conveyed.

4. The chain belt stitching device according to claim 3, characterized in that, The preset step length is equal to a predetermined pitch at which the fabric and the chain teeth move synchronously, and the ratio of the predetermined pitch to the pitch of the chain teeth is N, where N is a natural number greater than or equal to 1.

5. The chain belt stitching device according to claim 3 or 4, characterized in that, The chain belt sewing device further includes a sewing needle inductor (83), and the sewing needle inductor (83) is provided on the sewing head (20) for detecting the lifting action of the sewing needle (21), and the sewing needle inductor (83) is signal-connected to the controller (50); The controller (50) is used for controlling the first driving motor (41) and the second driving motor (31) to synchronously rotate a preset step length when receiving a sewing needle (21) lifting action signal sent by the sewing needle inductor (83), and controlling the sewing needle (21) to complete a piercing action after a first preset time period.

6. The chain belt stitching device according to claim 5, wherein, The controller (50) includes a pulse signal generator, and the controller (50) is used for simultaneously sending the same predetermined number of pulse signals to the first driving motor (41) and the second driving motor (31) through the pulse signal generator to control the first driving motor (41) and the second driving motor (31) to synchronously rotate a predetermined step length; And / or, the controller (50) further includes a timer. The controller (50) uses the timer to time the synchronous rotation of the first drive motor (41) and the second drive motor (31), and controls the first drive motor (41) and the second drive motor (31) to synchronously pause for the first preset duration after the synchronous rotation duration reaches the second preset duration.

7. The chain belt stitching device according to claim 5, characterized in that, The sewing head (20) includes a sewing motor (22) and a sewing needle mounting post (23); The main body of the sewing motor (22) is connected to the frame (10). The sewing needle mounting post (23) is movably disposed along a second direction on the main body of the sewing motor (22). The sewing needle (21) is detachably disposed at the first end of the sewing needle mounting post (23). The second direction is perpendicular to the first direction; The output end of the sewing motor (22) is in transmission connection with the sewing needle mounting post (23) to drive the second end of the sewing needle mounting post (23) to be in contact with or separated from the sewing needle inductor (83), and drive the sewing needle (21) to approach or move away from the workbench surface (M) through the first end of the sewing needle mounting post (23).

8. The chain belt stitching device according to claim 3 or 4, characterized in that The fabric conveying device (30) further includes a bracket (32); The clamping plate (33) is disposed on the bracket (32); The bracket (32) is slidably connected to the frame (10) along the first direction; The second drive motor (31) is in transmission connection with the bracket (32) and is used to drive the bracket (32) to move along the first direction.

9. The chain belt sewing device according to claim 8, characterized in that, The frame (10) is provided with a guide rail (11) extending along the first direction. The bracket (32) is slidably connected to the guide rail (11); The chain stitch sewing device further includes a controller (50) and a first sensor (81). The first sensor (81) is disposed on the guide rail (11) and is in signal connection with the controller (50). The bracket (32) may be provided with a trigger (82), and the trigger (82) is used to trigger the first sensor (81); The second drive motor (31) is in signal connection with the controller (50).

10. The chain belt stitching device according to claim 9, characterized in that, The guide rail (11) is divided into a preparation section (11a) and a sewing section (11b) by the first sensor (81). Along the first direction, the preparation section (11a) is located downstream of the sewing section (11b); When the trigger (82) corresponds to the preparation section (11a), the controller (50) controls the second drive motor (31) to drive the bracket (32) to slide at a first speed; When the trigger (82) corresponds to the sewing section (11b), the controller (50) controls the first drive motor (41) and the second drive motor (31) to rotate synchronously, and drives the bracket (32) to intermittently slide at a second speed through the second drive motor (32), and the second speed is less than the first speed.

11. The chain belt stitching device according to claim 8, characterized in that, The clamping plate (33) is detachably disposed on the bracket (32).

12. The chain belt stitching device according to claim 3 or 4, characterized in that, The tooth chain traction device (40) further includes a traction wheel (42) and a pressing wheel (43); The traction wheel (42) and the pressing wheel (43) are arranged along a second direction for clamping the tooth chain, wherein the second direction is perpendicular to the first direction; The first drive motor (41) is in transmission connection with the traction wheel (42).

13. The chain belt stitching device according to claim 12, wherein, An annular groove (421) is provided on the outer peripheral wall of the traction wheel (42), and the annular groove (421) is used for accommodating the tooth chain.

14. The chain belt stitching device according to claim 1, characterized in that, The chain belt sewing device further includes a tooth chain guiding device (60), and the tooth chain guiding device (60) is arranged on the workbench surface (M); The tooth chain guiding device (60) is provided with a guiding space extending along the first direction, and the guiding space is used for the tooth chain to pass through.

15. The chain belt sewing device according to claim 14, wherein, The tooth chain guiding device (60) includes a base (61) and a cover plate (62); The base (61) is arranged on the workbench surface (M), and a tooth chain guiding groove (611) is provided on the surface of the base (61) facing the sewing needle (21), and the tooth chain guiding groove (611) extends along the first direction; The cover plate (62) is arranged at the notch of the tooth chain guiding groove (611), the cover plate (62) can be close to or away from the notch, and the cover plate (62) is provided with an avoidance hole (621) for the sewing needle (21) to pass through.

16. The chain belt stitching device according to claim 15, wherein, The width of the cover plate (62) is less than or equal to the groove width of the tooth chain guiding groove (611), so as to form a cloth passing gap between the cover plate (62) and the groove side wall of the tooth chain guiding groove (611).

17. The chain belt stitching device according to claim 15, characterized in that, The cover plate (62) has a guiding section (622), a through hole (6221) is provided in the guiding section (622), and a roller (63) is arranged in the through hole (6221), and at least part of the roller (63) protrudes from the surface of the guiding section (622) facing the tooth chain guiding groove (611).

18. The chain belt stitching device according to claim 1, wherein The chain belt sewing device further includes a storage device (70) and a guiding wheel (91); The storage device (70) is used for storing the strip-shaped tooth chain; The guiding wheel (91) is arranged between the tooth chain traction device (40) and the storage device (70) for guiding the movement of the tooth chain.

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