Chain belt sewing equipment

Abstract

The utility model 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 field of garment processing technology, specifically relating to a chain sewing device. Background Technology

[0002] Currently, some garments have zipper straps sewn on. In the garment production process, the zipper strap needs to be produced separately first; that is, the zipper teeth are first sewn onto the fabric tape, and then the fabric tape is sewn onto the garment. This production method makes the production process more cumbersome and increases the amount of fabric tape used.

[0003] To improve production efficiency and reduce material usage, some garments have eliminated the fabric straps and instead sewed the chain teeth directly onto the garment. This method reduces production steps, increases production efficiency, eliminates the need for fabric straps, reduces material usage, and helps lower costs.

[0004] However, some zipper sewing machines in related technologies are only suitable for sewing zipper teeth onto long strips of fabric, using tensioning wheels and conveyor wheels to tension and transport the strips. However, since garment sewing uses pieces of fabric of varying sizes or irregular shapes, traditional tensioning wheels and conveyor wheels cannot effectively tension and transport the fabric. Therefore, currently, fabric feeding must be done manually, but due to human factors, problems such as fabric wrinkling and unstable feeding speed of the zipper teeth and fabric can occur. Utility Model Content

[0005] The purpose of this application is to provide a chain sewing device that can solve the problems of related technologies being unable to transport sheet-like or irregularly shaped fabrics of different sizes.

[0006] To solve the above-mentioned technical problems, this application is implemented as follows:

[0007] This application provides a chain sewing device, including: a frame and a sewing head, a fabric conveying device and a chain tooth traction device respectively disposed on the frame;

[0008] The frame is provided with a worktable, and the suture head includes suture needles that are disposed corresponding to the worktable.

[0009] The fabric conveying device includes a clamp for carrying and tensioning the fabric, the clamp being movable along a first direction for conveying the fabric to the workbench surface;

[0010] The chain tooth traction device is used to feed chain teeth to the workbench surface along the first direction;

[0011] The fabric conveying device and the chain tooth traction device can convey the fabric synchronously.

[0012] In the embodiment of the present application, the cloth can be clamped and fixed by the clamping plate during the cloth conveying process. On the one hand, it can ensure that the cloth does not move randomly during the conveying process, thereby improving the conveying accuracy of the cloth. On the other hand, it can also meet the conveying needs of cloth pieces or irregular shapes of different sizes through the clamping effect of the clamping plate, and ensure that the cloth does not wrinkle or relax during the conveying process, thereby improving the applicability of the cloth conveying device and further improving the applicability of the entire chain stitching equipment. In addition, the cloth and the chain tooth can be conveyed synchronously by the cloth conveying device and the chain tooth traction device, thereby preventing the normal stitching process from being affected due to the asynchronous conveying of the cloth and the chain tooth. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 Structure schematic diagram of the chain stitching equipment, the chain tooth and the cloth disclosed in the embodiment of the present application;

[0014] Figure 2 Structure schematic diagram of the stitching head, the cloth conveying device, the chain tooth traction device, the guide wheel, the guide rail and the cloth disclosed in the embodiment of the present application;

[0015] Figure 3 Structure schematic diagram of the cloth conveying device and the cloth disclosed in the embodiment of the present application;

[0016] Figure 4 Structure schematic diagram of the stitching head, the chain tooth traction device, the guide wheel and the chain tooth disclosed in the embodiment of the present application;

[0017] Figure 5 Partial structure schematic diagram of the rack and the chain tooth traction device disclosed in the embodiment of the present application;

[0018] Figure 6 Partial structure schematic diagram of the rack, the stitching head and the chain tooth guide device disclosed in the embodiment of the present application;

[0019] Figure 7 Structure schematic diagram of the cover plate and the roller disclosed in the embodiment of the present application;

[0020] Figure 8 Structure schematic diagram of the base disclosed in the embodiment of the present application;

[0021] Figure 9 Structure schematic diagram of the stitching head and the first needle sensor disclosed in the embodiment of the present application;

[0022] Figure 10 Structure schematic diagram of the stitching head and the second needle sensor disclosed in the embodiment of the present application.

[0023] Explanation of reference signs:

[0024] 10 - rack; M - workbench; 11 - guide rail; 11a - preparation section; 11b - stitching section;

[0025] 20 - stitching head; 21 - sewing needle; 22 - sewing motor; 23 - sewing needle mounting column;

[0026] 30 - cloth conveying device; 31 - second driving motor; 32 - bracket; 33 - clamping plate;

[0027] 40 - chain stitch pulling device; 41 - first driving motor; 42 - pulling wheel; 421 - annular groove; 43 - pressing wheel;

[0028] 50 - controller;

[0029] 60 - chain stitch guiding device; 61 - base; 611 - chain stitch guiding groove; 6121 - left side wing plate; 6122 - right side wing plate; 62 - cover plate; 621 - avoiding hole; 622 - guiding section; 6221 - through hole; 63 - roller;

[0030] 70 - storage device;

[0031] 81 - first sensor; 82 - trigger; 83 - sewing needle sensor;

[0032] 91 - guiding wheel. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0034] The terms "first", "second", and the like in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way 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 usually a class, not limited to the number of objects, for example, the first object can be one or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / ", generally indicates that the front and rear associated objects are in an "or" relationship.

[0035] The embodiments of the present application will be described in detail below in combination with the drawings and specific embodiments and their application scenarios.

[0036] Reference Figures 1 to 10The chain stitching device disclosed in the embodiments of the present application comprises a rack 10, a stitching head 20, a cloth conveying device 30 and a chain tooth traction device 40 arranged on the rack 10 respectively.

[0037] The rack 10 can be provided with a workbench M, and the stitching head 20 comprises a sewing needle 21 arranged correspondingly to the workbench M, which can perform continuous reciprocating motion to guide the sewing work of the sewing thread.

[0038] The cloth conveying device 30 comprises a clamping plate 33 for carrying and tensioning the cloth, which is movable along a first direction to convey the cloth to the workbench M. Optionally, the cloth can be a cut piece of material, and there is no continuity between one kind of cloth and another kind of cloth, and each kind of cloth has a sewing position. After the clamping plate 33 clamps the cloth, the sewing position of the cloth is exposed outside the outer side of the clamping plate 33.

[0039] Based on the above arrangement, the cloth can be effectively clamped and fixed by arranging the clamping plate 33 to clamp the cloth, and the sewing position of the cloth can be well unfolded and tensioned during conveying, so as to synchronize the movement of the cloth and the chain tooth.

[0040] Optionally, the cloth can have a sewing position, and when the clamping plate 33 carries the cloth to move, the sewing position can pass below the sewing needle 21 to be pierced by the reciprocating motion of the sewing needle 21, so as to facilitate the sewing of the cloth.

[0041] The chain tooth traction device 40 is used to convey the chain tooth to the workbench M along the first direction, and the chain tooth traction device 40 can pass the chain tooth below the sewing needle 21 to sew the chain tooth to the cloth by the reciprocating motion of the sewing needle 21.

[0042] In the embodiments of the present application, the cloth conveying device 30 and the chain tooth traction device 40 can be synchronized to convey.

[0043] Based on the above arrangement, in the process of conveying the cloth, the cloth can be clamped and fixed by the clamping plate 33, which can ensure that the cloth does not move randomly during conveying, improve the conveying accuracy of the cloth, and also meet the conveying requirements of different sizes of piece-shaped or special-shaped cloths through the clamping action of the clamping plate 33, and ensure that the cloth does not wrinkle or relax during conveying, improve the applicability of the cloth conveying device 30, and further improve the applicability of the entire chain stitching device. In addition, the cloth and the chain tooth can be synchronized to convey by the cloth conveying device 30 and the chain tooth traction device 40, so as to prevent the normal sewing process from being affected due to the asynchronous conveying of the cloth and the chain tooth.

[0044] Compared with manual loading, the embodiment of the application can solve the problems of deviation, different speeds, and different tension during manual loading, and can improve the beauty of the chain and the cloth.

[0045] In some embodiments, the chain stitching device can further include a controller 51 connected to the cloth conveying device 30, the chain pulling device 40, and the stitching head 20, respectively, for controlling the cloth conveying device 30 and the chain pulling device 40 to convey synchronously, and for controlling the stitching head 20 to stitch the chain and the cloth on the workbench M.

[0046] Based on the above settings, the controller 50 can control the cloth conveying device 30 and the chain pulling device 40 synchronously, so as to ensure the synchronization of the cloth conveying device 30 and the chain pulling device 40, to prevent the chain conveying and the cloth conveying from being out of synchronization and affecting normal stitching.

[0047] The chain pulling device 40 can include a first driving motor 41, and the cloth conveying device 30 can include a second driving motor 31. The controller 50 can be connected to the first driving motor 41 and the second driving motor 31, respectively, for controlling the first driving motor 41 and the second driving motor 31 to rotate synchronously by a preset step length, and for controlling the cloth conveying device 30 and the chain pulling device 40 to convey synchronously. Based on this, the controller 50 can control the first driving motor 41 and the second driving motor 31 to ensure the synchronization of the cloth conveying and the chain conveying.

[0048] The preset step length can be equal to a predetermined pitch at which the cloth and the chain move synchronously, and the ratio of the predetermined pitch to the pitch of the chain is N, where N is a natural number greater than or equal to 1.

[0049] Alternatively, the chain and the cloth can move synchronously by a predetermined pitch L1, and the pitch of the chain is L0, L1:L0=N, where N is a natural number (or a positive integer) greater than or equal to 1. That is, the sewing needle 21 can achieve fine stitching of one chain pitch, or can achieve different step width stitching across multiple chain pitches. By controlling the first driving motor 41 and the second driving motor 31 to complete the predetermined step length synchronously through the controller 50, and by controlling the predetermined pitch at which the chain and the cloth move synchronously, the device can be adapted to different specifications of the chain by setting the predetermined step length of the motor, and can improve the versatility of the device, and can also achieve different step width stitching by adjusting the predetermined pitch at which the chain and the cloth move synchronously.

[0050] In addition, the chain stitching device can further comprise a needle sensor 83 arranged on the stitching head 20 and configured to detect the lifting action of the needle 21, and the needle sensor 83 is in signal connection with the controller 50. Based on this, the controller 50 is configured to control the first driving motor 41 and the second driving motor 31 to rotate synchronously by a preset step length when the lifting action signal of the needle 21 sent by the needle sensor 83 is received, and control the needle 21 to complete the piercing action after a first preset time length.

[0051] Specifically, the needle sensor 83 is configured to sense the lifting action of the needle 21 and send a lifting action signal of the needle 21 to the controller 50, and the controller 50 is configured to control the first driving motor 41 and the second driving motor 31 to complete the rotation by a preset step length synchronously after receiving the lifting action signal of the needle 21, and temporarily pause to wait for the needle 21 to complete the downward movement action; when the first driving motor 41 and the second driving motor 31 complete the predetermined step length synchronously, the chain and the cloth move synchronously by a predetermined pitch in the first direction, and the predetermined pitch is equal to the predetermined step length; the needle 21 can perform the piercing action to guide the stitching of the thread between the chain and the cloth.

[0052] Therefore, by arranging the cloth conveying device 30 and the chain traction device 40 and controlling the first driving motor 41 and the second driving motor 31 to rotate synchronously and pause by the controller 50, the cloth and the chain do not move to convey the material for the stitching head 20, which not only can provide stable synchronous feeding, but also can realize the automation and intelligentization of the feeding, and greatly improve the production efficiency of the garment.

[0053] Under the control of the controller 50, the first driving motor 41 and the second driving motor 31 can perform intermittent starting or pausing action, because the stitching action of the needle 21 includes lifting above the cloth and moving downward through the chain and the cloth, and if the needle 21 pulls the chain and the cloth when moving downward through the chain and the cloth, the needle 21 will be damaged, so it is necessary to control the first driving motor 41 and the second driving motor 31 to start to drive the chain and the cloth to move forward when the needle 21 is lifted above the cloth, which is beneficial to protect the chain stitching device.

[0054] In the embodiment of the present application, the synchronous movement of the chain and the cloth 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, and 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 kinds:

[0055] The first, the controller 50 receives the needle 21 lifting action signal, by controlling the first drive motor 41 and the second drive motor 31 synchronous rotation of a predetermined length T to control the rotation of the predetermined step, in the predetermined length T after the control of the first drive motor 41 and the second drive motor 31 synchronous pause waiting for the needle 21 to complete the down through the action.

[0056] The second, the controller 50 receives the needle 21 lifting action signal, by controlling the first drive motor 41 and the second drive motor 31 synchronous rotation, the needle sensor 83 can sense the needle 21 down and send the needle 21 down signal to the controller 50, the controller 50 receives the needle 21 down signal after the control of the first drive motor 41 and the second drive motor 31 synchronous pause rotation to wait for the needle 21 to complete the down through the action, that is, the controller 50 through the needle sensor 83 sensing signal to control the first drive motor 41 and the second drive motor 31 synchronous rotation of the predetermined step. Of course, in addition to the use of a needle sensor 83 sensing the action of the needle 21, but also by setting two independent needle sensor 83 to detect the needle 21 up and down action respectively.

[0057] The third, the first drive motor 41 and the second drive motor 31 are servo motor, the controller 50 can include a pulse signal generator (not shown in the figure), the controller 50 receives the needle 21 lifting action signal, can be through the pulse signal generator to the first drive motor 41 and the second drive motor 31 simultaneously send the same predetermined number of pulse signal, to control the first drive motor 41 and the second drive motor 31 synchronous rotation of the predetermined step, that is, the synchronous rotation angle and the number of turns, and then let the pulse signal generator pause to send pulse signal, to control the first drive motor 41 and the second drive motor 31 simultaneously pause waiting for the needle 21 to complete the down through the action.

[0058] In some embodiments, the controller 50 can also be through the timer (not shown in the figure) to the first drive motor 41 and the second drive motor 31 synchronous rotation timing, and in the synchronous rotation length reaches the second preset length after the control of the first drive motor 41 and the second drive motor 31 synchronous pause first preset length.

[0059] Reference Figure 4 And Figure 6In some embodiments, the suturing head 20 can include a suturing motor 22 and a needle mounting column 23. The body of the suturing motor 22 is connected to the frame 10, the needle mounting column 23 is movably arranged on the body of the suturing motor 22 along a second direction, the needle 21 is detachably arranged on the first end of the needle mounting column 23, the second direction is perpendicular to the first direction, the output end of the suturing motor 22 is in transmission connection with the needle mounting column 23 to drive the second end of the needle mounting column 23 to be in contact with or separated from the needle sensor 83, and the first end of the needle mounting column 23 drives the needle 21 to move close to or away from the worktable surface M. For example, the first direction can be the left-right direction, and the second direction can be the up-down direction.

[0060] Optionally, the needle 21 is detachably mounted on the bottom of the needle mounting column 23, and the needle mounting column 23 can continuously reciprocate under the driving of the suturing motor 22 to drive the needle 21 to reciprocate.

[0061] In addition, the suturing motor 22 can include an independently controlled motor, and can be signal-connected to the controller 50 and then uniformly controlled by the controller 50. It should be noted that the suturing motor 22 has no certain synchronous action relationship with the first driving motor 41 and the second driving motor 31, but the driving sequence of the suturing motor 22 can be prior to the first driving motor 41 and the second driving motor 31, so that the controller 50 calculates the position state of the needle 21 through the signal sent by the needle sensing sensor first, and then controls the first driving motor 41 and the second driving motor 31 to drive the chain teeth and the cloth to move away from the downwardly penetrating needle 21.

[0062] The needle sensing sensor 83 is a sensor for sensing the action of the needle 21. In order to facilitate detection of the action of the needle 21, the needle sensing sensor 83 can be located on the side of the needle mounting column 23 for detecting the up-down movement of the needle mounting column 23. When the needle mounting column 23 passes through the needle sensing sensor 83 from bottom to top, the needle sensing sensor 83 is triggered and sends a needle 21 lifting action signal to the controller 50. Similarly, when the needle mounting column 23 passes through the needle sensing sensor 83 from top to bottom, the needle sensing sensor 83 can also be triggered and sends a needle 21 pressing signal to the controller 50.

[0063] Optionally, a trigger can also be arranged on the needle mounting column 23, the needle mounting column 23 can move up and down with the trigger, and when the trigger is close to the needle sensing sensor 83, the needle sensing sensor 83 is triggered and sends a needle 21 lifting action signal or a needle 21 pressing signal to the controller 50.

[0064] The specific structure of the needle sensing sensor 83 and the needle mounting column 23 is various. The first structure is as shown in Figure 1 、 Figure 2 、 Figure 4Optionally, the needle sensing device 83 can be a Hall sensor, and a magnet is arranged on the upper portion of the needle mounting column 23, or the needle sensing device 83 is a photoelectric sensor, and the top (i.e., the first end) of the needle mounting column 23 can move back and forth to block or separate.

[0065] Further, a notch can be arranged on the needle mounting column 23, as shown in Figure 10 Optionally, the needle sensing device 83 can be a light touch micro switch, and a pressing block can be arranged on the needle mounting column 23, and the micro switch is triggered to generate an action signal when the needle mounting column 23 moves up and down.

[0066] No matter which way is used, by arranging the needle sensing device 83, the lifting or pressing action of the 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 needle 21 and regularly control the start and stop of the first drive motor 41 and the second drive motor 31, avoiding the interference of the needle 21 with the chain and the fabric, and protecting the chain stitching device well.

[0067] To realize the movement of the clamping plate 33 in the first direction, the fabric conveying device 30 can further include a bracket 32, as shown in Figure 2 and Figure 3 The clamping plate 33 is arranged on the bracket 32, the bracket 32 is slidingly connected to the rack 10 in the first direction, and the second drive motor 31 is drivingly connected to the bracket 32 for driving the bracket 32 to move in the first direction.

[0068] Optionally, the clamping plate 33 can be detachably arranged on the bracket 32, so that multiple clamping plates 33 can be arranged for disassembly and replacement, thereby improving the processing efficiency.

[0069] Considering the case that the chain needs to be sewn between two pieces of fabric, in the embodiment, the fabric conveying device 30 can include two groups of clamping plates 33, and the two groups of clamping plates 33 can be arranged in a horizontal direction, one group of clamping plates 33 is used to clamp one piece of fabric, and the other group of clamping plates 33 is used to clamp the other piece of fabric, so that the synchronous movement of the two groups of clamping plates 33 in the first direction can realize the synchronous conveying of the two pieces of fabric, thereby ensuring the conveying accuracy of the two pieces of fabric.

[0070] Optionally, the bracket 32 can be a frame, and the clamping plate 33 can be connected to the inner side of the frame. For example, the bracket 32 can be a polygonal frame, such as a rectangular frame, a square frame, etc.

[0071] Optionally, the first drive motor 41 and the bracket 32 can be drivingly connected through a screw block, a worm gear, a gear and a rack, etc.

[0072] Based on the above setting, 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 back direction), so as to convey the fabric clamped by the clamping plate 33 to the workbench M, so as to facilitate the stitching by the sewing needle 21.

[0073] In order to realize the smooth sliding of the bracket 32, the rack 10 can be provided with a guide rail 11 extending along the first direction, and the bracket 32 is in sliding connection with the guide rail 11, so that the guide rail 11 can play a guiding and limiting role on the bracket 32, so as to improve the sliding stability and sliding precision of the bracket 32.

[0074] Reference Figures 1 to 3 In some embodiments, the chain stitching device can further include a first sensor 81. Wherein the first sensor 81 is arranged on the guide rail 11 and is in signal connection with the controller 50, so as to send signals to the controller 50; correspondingly, the bracket 32 can be provided with a triggering piece 82 for triggering the first sensor 81. In addition, the second driving motor 31 is in signal connection with the controller 50, so that the controller 50 can send control signals to the second driving motor 31 to control the operation of the second driving motor 31.

[0075] Based on the above setting, under the control action of the controller 50, during the movement of the bracket 32 along the first direction driven by the second driving motor 31, the triggering piece 82 moves synchronously with the bracket 32, when the triggering piece 82 moves to the position matched with the first sensor 81, the first sensor 81 is triggered and sends signals to the controller 50, and the moving position of the bracket 32 is determined through the analysis and judgment of the controller 50.

[0076] Reference Figure 2 , the guide rail 11 is divided into a preparation section 11a and a stitching section 11b by the first sensor 81, that is, the sliding stroke of the bracket 32 along the guide rail 11 is divided into the preparation section 11a and the stitching section 11b; along the first direction, the preparation section 11a is located downstream of the stitching section 11b, that is, as the bracket 32 moves along the first direction, the triggering piece 82 is first located in the area corresponding to the preparation section 11a, and then after the triggering piece 82 triggers the first sensor 81, it moves to the area corresponding to the stitching section 11b.

[0077] In the case that the triggering piece 82 corresponds to the preparation section 11a, the controller 50 can control the second driving motor 31 to drive the bracket 32 to slide at a first speed; in the case that the triggering piece 82 corresponds to the stitching section 11b, the controller 50 controls the first driving motor 41 and the second driving motor 31 to rotate synchronously, and drives the bracket 32 to slide intermittently at a second speed by the second driving motor 32, and the second speed is less than the first speed.

[0078] Specifically, the controller 50 can independently control the second driving motor 31 to drive the bracket 32 and the clamping plate 33 to move quickly in the preparation section 11a, so as to improve the transmission speed of the cloth; when the trigger piece 82 of the bracket 32 triggers the first sensor 81, the first sensor 81 sends a first signal to the controller 50, and the controller 50 controls the second driving motor 31 to start and controls the bracket 32 to run intermittently at the second speed in the sewing section 11b after receiving the first signal of the first sensor 81. In addition, the controller 50 can also control the chain tooth traction device 40 (or the first driving motor 41) to run synchronously with the second driving motor 31 to control the cloth and the chain tooth to pass through the sewing head 20 at the same speed in the sewing section 11b after receiving the first signal of the first sensor 81, so as to realize sewing.

[0079] It should be noted that, since the sewing needle 21 reciprocates in the up-down direction to pierce the fabric, the fabric needs to be stationary while the sewing needle 21 pierces the fabric, so as to prevent the motion interference caused by the different motion directions of the sewing needle 21 and the fabric. Based on this, the controller 50 controls the sewing head 20 and the second driving motor 31 respectively in the embodiment of the application, so as to realize the conveying of the fabric when the sewing needle 21 is lifted, that is, the action of the sewing needle 21 piercing the fabric and the action of the fabric moving are not simultaneous, so as to ensure the normal sewing of the sewing needle 21 to the fabric.

[0080] In addition, since the first speed is greater than the second speed, the transmission time of the cloth before sewing can be shortened, so as to be beneficial to improve the sewing efficiency.

[0081] Of course, when the trigger piece 82 of the bracket 32 triggers the first sensor 81, the first sensor 81 sends a first signal to the controller 50, and the controller 50 can also control the chain tooth traction device 40 to start and make the conveying speed of the chain tooth traction device 40 and the conveying speed of the cloth the same after receiving the first signal of the first sensor 81, so as to ensure the synchronous conveying of the chain tooth and the fabric.

[0082] In the embodiment of the 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 three methods of controlling the rotation step length of the first driving motor 41 and the second driving motor 31, the controller 50 can realize the control of the moving distance through the number of output pulses, the rotation time and the sewing needle sensor 83.

[0083] Optionally, control can also be achieved using a sensor mounted on the guide rail 11. Specifically, a second sensor connected to the controller 50 is mounted on the guide rail 11. The second sensor is spaced apart from the first sensor 81 (e.g., the second sensor is located behind the first sensor 81) and is used to detect the maximum travel position of the bracket 32. When the bracket 32, carrying the clamp 33, passes through the sewing machine head 20, the second sensor is triggered. The second sensor sends a second signal to the controller 50. After receiving the second signal from the second sensor, the controller 50 controls the first drive motor 41 and the second drive motor 31 to stop rotating.

[0084] In addition, the controller 50 can also control the second drive motor 31 to drive the bracket 32 ​​and clamp 33 to perform a backward movement. Specific control methods include at least the following: The first method is 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, after reaching a set time (i.e., the second preset time), the controller 50 controls the second drive motor 31 to rotate in the reverse direction. The second method is through a button or sensor. The button or sensor is signal-connected to the controller 50. When the button or sensor is triggered, it sends a backward signal to the controller 50. Upon receiving the backward signal, the controller 50 controls the second drive motor 31 to rotate in the reverse direction. Optionally, the sensor here can be the aforementioned second sensor.

[0085] refer to Figure 4 and Figure 5 In some embodiments, the chain tooth traction device 40 may include a traction wheel 42 and a clamping wheel 43. The traction wheel 42 and the clamping wheel 43 are arranged along a second direction for clamping the chain teeth. The second direction is perpendicular to the first direction. A first drive motor 41 is connected to the traction wheel 42. Based on this, the chain teeth can be clamped between the traction wheel 42 and the clamping wheel 43. 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, allowing the chain teeth to pass through the worktable surface M.

[0086] Optionally, the chain teeth can be a long, continuous strip structure, and the chain teeth can be pulled by the chain tooth traction device 40 so that the chain teeth pass through the worktable surface M.

[0087] Optionally, the outer peripheral wall of the traction wheel 42 may be provided with an annular groove 421, such as... Figure 5 As shown, the annular groove 421 is used to accommodate the chain teeth. In addition, the outer peripheral wall of the pressure wheel 43 can press against the outer peripheral wall of the traction wheel 42 and cover part of the annular groove 421. Under the driving action of the first drive motor 41, the traction wheel 42 rotates and pulls the chain teeth placed in the annular groove 421 to move.

[0088] refer toFigure 1 and Figure 4 In some embodiments, the chain stitching device can further comprise a chain guide device 60 arranged on the workbench M. The chain guide device 60 is provided with a guide space extending along the first direction, and the guide space is used for passing through the chain. Thus, the chain guide device 60 can guide the chain to ensure the position accuracy of the chain during transmission.

[0089] Referring to Figures 6 to 8 The chain guide device 60 can comprise a base 61 and a cover plate 62. The base 61 is arranged on the workbench M, and the surface of the base 61 facing the needle 21 is provided with a chain guide groove 611 extending along the first direction. Thus, the chain guide groove 611 can accommodate the chain and guide the chain.

[0090] Optionally, the chain guide groove 611 can comprise a groove bottom wall and two side groove walls, i.e., a left groove side wall and a right groove side wall. The groove bottom wall, the left groove side wall and the right groove side wall define a groove cavity. The chain passes through the groove cavity and can move along the extension direction of the chain guide groove 611.

[0091] The cover plate 62 is arranged at the slot opening of the chain guide groove 611. The cover plate 62 can be close to or away from the slot opening, and the cover plate 62 is provided with an avoiding hole 621 for passing through the needle 21. Based on this, the cover plate 62 can cover the slot opening of the chain guide groove 611 to prevent the chain from escaping from the chain guide groove 611 through the slot opening.

[0092] Optionally, the main body of the stitching head 20 can be further provided with a downwardly extending connecting column. The connecting column is movable up and down, and the cover plate 62 is connected to the bottom end of the connecting column. Thus, 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 opening.

[0093] Optionally, the width of the cover plate 62 can be less than or equal to the groove width of the chain guide groove 611, wherein the groove width of the chain 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 close to the slot opening of the chain guide groove 611, the cover plate 62 forms a cloth passing gap with the left groove side wall and the right groove side wall, respectively. Thus, the stitched part of the cloth can pass through the cloth passing gap and extend between the cover plate 62 and each groove side wall, so as to ensure that the cloth can move smoothly.

[0094] Referring to Figure 8In some embodiments, the base 61 can 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 tooth 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 passing clamp plate 33 can be respectively supported by the surfaces of the left wing plate 6121 and the right wing plate 6122, so as to ensure the stability of the movement of the clamp plate 33.

[0095] Optionally, the front end of the left wing plate 6121 and the right wing plate 6122 (i.e., the end facing the fabric conveying device 30) is respectively provided with a chamfer, which facilitates the smooth sliding of the clamp plate 33 on the left wing plate 6121 and the right wing plate 6122.

[0096] Reference Figure 6 and Figure 7 In some embodiments, the cover plate 62 can have a guide section 622, which can be provided with a through hole 6221 extending upward and downward, and a rotatable roller 63 is arranged in the through hole 6221. At least part of the roller 63 protrudes from the surface of the guide section 622 facing the tooth guide groove 611, so that at least part of the roller 63 can protrude into the slot of the tooth guide groove 611, so as to facilitate the extrusion of the fabric.

[0097] Optionally, the end of the guide section 622 facing the fabric conveying device 30 can extend out of the tooth guide groove 611, and a chamfer can be provided on the side of the end facing the tooth guide groove 611, so as to facilitate the input of the clamp plate 33.

[0098] Reference Figure 1 and Figure 4 In some embodiments, the chain stitching device can further include a storage device 70 and a guide wheel 91. The storage device 70 is used for storing the chain-shaped teeth, and the guide wheel 91 is arranged between the tooth traction device 40 and the storage device 70, and is used for guiding the movement of the teeth.

[0099] In summary, the chain stitching device in the embodiments of the present application can have the following technical advantages:

[0100] Firstly, by arranging the fabric conveying device 30 and the tooth traction device 40, and using the controller 50 to control the first driving motor 41 and the second driving motor 31 to rotate or pause synchronously, the synchronous movement of the fabric and the teeth is realized, so as to synchronously convey the teeth and the fabric by the stitching head 20. Not only can stable synchronous feeding be provided, but also the automation and intelligentization of the feeding can be realized, and the processing efficiency can be improved.

[0101] Second, the cloth is clamped by the clamping plate 33, which can effectively clamp and fix the cloth, so that the stitched part of the cloth can be well expanded and tensioned, and then the second driving motor 31 is automatically controlled for conveying, so that the cloth and the chain can be well synchronized, the speed is stable, the problems of cloth deviation, uneven speed and uneven tension during manual feeding are effectively solved, and the beauty of the sewing of the cloth and the chain is improved.

[0102] Third, by setting the needle inductor 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 state of the sewing needle 21, and regularly start and stop the first driving motor 41 and the second driving motor 31, so as to avoid the interference between the sewing needle 21 and the chain and the cloth, and to protect the chain sewing equipment.

[0103] Fourth, the first driving motor 41 and the second driving motor 31 are controlled by the controller 50 to complete the predetermined step length synchronously, so as to control the predetermined pitch of the synchronous movement of the chain and the cloth, which not only can adapt to different specifications of the chain by controlling the predetermined step length of the motor, but also can improve the versatility of the equipment, and can realize different span sewing methods by adjusting the predetermined pitch of the synchronous movement of the chain and the cloth.

[0104] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above specific embodiments, the above specific embodiments are only illustrative, not restrictive, and those skilled in the art can make many forms under the inspiration of the present application without departing from the scope of the present application and the protection scope of the claims, which all belong to the protection of the present application.

Claims

1. A chain sewing device, characterized in that, The chain belt sewing device comprises a rack (10) and a sewing head (20), a cloth conveying device (30) and a chain tooth traction device (40) arranged on the rack (10) respectively. The rack (10) is provided with a workbench surface (M), and the sewing head (20) comprises a sewing needle (21) arranged correspondingly to the workbench surface (M). The cloth conveying device (30) comprises a clamping plate (33) for bearing and tensioning cloth, and the clamping plate (33) is movable along a first direction to convey the cloth to the workbench surface (M). The chain tooth traction device (40) is used to convey the chain tooth to the workbench surface (M) along the first direction. The cloth conveying device (30) and the chain tooth traction device (40) can be synchronously conveyed. The chain belt sewing device further comprises a controller (50) signal connected with the cloth conveying device (30), the chain tooth traction device (40) and the sewing head (20) respectively, used to control the cloth conveying device (30) and the chain tooth traction device (40) to be synchronously conveyed, and control the sewing head (20) to sew the chain tooth and the cloth at the workbench surface (M).

2. The chain and strap stitching apparatus of claim 1 wherein, The chain tooth traction device (40) comprises a first driving motor (41), and the cloth conveying device (30) comprises a second driving motor (31).

3. The chain stitch sewing apparatus according to claim 2, characterized by The controller (50) is signal connected with the first driving motor (41) and the second driving motor (31) respectively, 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 cloth conveying device (30) and the chain tooth traction device (40) to be synchronously conveyed. The preset step length is equal to a predetermined pitch of the cloth and the chain tooth synchronously moving, and the ratio of the predetermined pitch to the pitch of the chain tooth is N, N is a natural number greater than or equal to 1.

4. The chain stitch sewing apparatus according to claim 3, characterized by The chain belt sewing device further comprises a sewing needle sensor (83) arranged on the sewing head (20), used to detect the lifting action of the sewing needle (21), and the sewing needle sensor (83) is signal connected with the controller (50).

5. The chain stitch sewing apparatus according to claim 3 or 4, characterized by 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 (21) lifting action signal sent by the sewing needle sensor (83), and control the sewing needle (21) to complete the puncture action after a first preset time length. The controller (50) comprises a pulse signal generator, and the controller (50) is used to send the same predetermined number of pulse signals to the first driving motor (41) and the second driving motor (31) at the same time through the pulse signal generator, so as to control the first driving motor (41) and the second driving motor (31) to rotate synchronously by a predetermined step length.

6. The chain stitch sewing apparatus according to claim 5, wherein ​ And / or, the controller (50) further comprises a timer, the controller (50) timing the synchronous rotation of the first drive motor (41) and the second drive motor (31) through the timer, and controlling the first drive motor (41) and the second drive motor (31) to be synchronous for a first preset time length after the synchronous rotation time reaches a second preset time length.

7. The chain stitch sewing apparatus according to claim 5, wherein The suture head (20) comprises a suture motor (22) and a suture needle mounting column (23). The main body of the suture motor (22) is connected to the rack (10), the suture needle mounting column (23) is movably arranged on the main body of the suture motor (22) along a second direction, and the suture needle (21) is detachably arranged on the first end of the suture needle mounting column (23), and the second direction is perpendicular to the first direction. The output end of the suture motor (22) is in transmission connection with the suture needle mounting column (23) to drive the second end of the suture needle mounting column (23) to be in contact with or separated from the suture needle sensor (83), and the first end of the suture needle mounting column (23) drives the suture needle (21) to move close to or away from the workbench surface (M).

8. The chain stitch sewing apparatus according to claim 3 or 4, characterized by The cloth conveying device (30) further comprises a bracket (32); The clamping plate (33) is arranged on the bracket (32); The bracket (32) is slidingly connected to the rack (10) along the first direction; The second drive motor (31) is in transmission connection with the bracket (32) to drive the bracket (32) to move along the first direction.

9. The chain stitch sewing apparatus according to claim 8, wherein The rack (10) is provided with a guide rail (11) extending along the first direction, and the bracket (32) is slidingly connected with the guide rail (11); The chain suture device further comprises a controller (50) and a first sensor (81), the first sensor (81) is arranged on the guide rail (11) and is in signal connection with the controller (50), and the bracket (32) can be provided with a trigger piece (82), the trigger piece (82) is used for triggering the first sensor (81); The second drive motor (31) is in signal connection with the controller (50).

10. The chain stitch sewing apparatus according to claim 9, wherein The guide rail (11) is divided into a preparation section (11a) and a suture section (11b) by the first sensor (81), and along the first direction, the preparation section (11a) is located downstream of the suture section (11b); In the case that the trigger piece (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; In the case that the trigger piece (82) corresponds to the suture 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 slide intermittently at a second speed through the second drive motor (31), and the second speed is less than the first speed.

11. The chain stitch sewing apparatus according to claim 8, wherein The clamping plate (33) is detachably arranged on the bracket (32).

12. The chain stitch sewing apparatus according to claim 3 or 4, characterized by The fastener pulling device (40) further comprises a pulling wheel (42) and a pressing wheel (43); The pulling wheel (42) and the pressing wheel (43) are arranged along a second direction for clamping the fastener, wherein the second direction is perpendicular to the first direction; The first driving motor (41) is in transmission connection with the pulling wheel (42).

13. The chain stitch sewing apparatus according to claim 12, wherein, An outer peripheral wall of the pulling wheel (42) is provided with an annular groove (421) for accommodating the fastener.

14. The chain belt suture device of claim 1, wherein, The chain suture device further comprises a fastener guiding device (60) arranged on the workbench surface (M); The fastener guiding device (60) is provided with a guiding space extending along the first direction for passing through the fastener.

15. The chain stitch sewing apparatus according to claim 14, wherein, The fastener guiding device (60) comprises a base (61) and a cover plate (62); The base (61) is arranged on the workbench surface (M), and a surface of the base (61) facing the suture needle (21) is provided with a fastener guiding groove (611) extending along the first direction; The cover plate (62) is arranged at a groove opening of the fastener guiding groove (611), and the cover plate (62) is closeable to or away from the groove opening, and the cover plate (62) is provided with an avoiding hole (621) for passing through the suture needle (21).

16. The chain stitch sewing apparatus according to claim 15, wherein A width of the cover plate (62) is less than or equal to a groove width of the fastener guiding groove (611), so that a passing cloth gap is formed between the cover plate (62) and a groove side wall of the fastener guiding groove (611).

17. The chain stitch sewing apparatus according to claim 15, wherein The cover plate (62) has a guiding section (622) provided with a through hole (6221), and a roller (63) is arranged in the through hole (6221), and at least part of the roller (63) protrudes from a surface of the guiding section (622) facing the fastener guiding groove (611).

18. The chain stitch sewing apparatus according to claim 1, wherein, The chain suture device further comprises a storage device (70) and a guiding wheel (91); The storage device (70) is used for storing the fastener in a strip shape; The guiding wheel (91) is arranged between the fastener pulling device (40) and the storage device (70) and is used for guiding movement of the fastener.

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