Shuttle frame assembly module of sewing equipment and sewing equipment of double-needle machine

Abstract

The invention relates to a shuttle frame assembly module of sewing equipment and the sewing equipment of a double-needle machine, the shuttle frame assembly module is used for being matched with a machine needle of the sewing equipment to operate a sewing thread, the sewing equipment comprises a lower shaft for providing driving force, and the shuttle frame assembly module comprises a shuttle frame, a shuttle rod and a shuttle rod, the rotating shuttle is linked with the lower shaft, and the rotating shuttle is rotationally mounted on the shuttle frame; the needle plate is fixed to the shuttle frame, and an avoiding opening is formed in the needle plate; the feed dog is linked with the lower shaft, and the feed dog is movably arranged at the avoiding opening; when the shuttle frame slides along the lower shaft, the rotating shuttle, the needle plate and the feed dog synchronously follow the shuttle frame. According to the technical scheme, the innovative shuttle frame assembly module is provided, the basic adjusting unit capable of being adjusted in a linkage mode is formed through the shuttle frame, the rotating shuttle, the needle plate and the feed dog, and the shuttle frame assembly module has the technical advantages of being low in operation difficulty, high in production efficiency, high in intelligent degree and good in adaptability to different garment process requirements.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sewing equipment, in particular to a shuttle holder assembly module of a sewing equipment and a double needle sewing machine. BACKGROUND

[0002] Traditional double needle sewing machines are widely used in garment processes such as fly, waistband, and tent, and can form two parallel stitches to improve sewing efficiency. However, for different garment processes, the left and right needle bars of the traditional double needle machine are usually fixed, and if the distance between the two parallel stitches needs to be adjusted, the needle position parts must be replaced, which is a relatively cumbersome process.

[0003] When replacing the needle position, the corresponding position of the shuttle holder also needs to be adjusted due to the change of the needle distance, otherwise the cooperation gap between the rotating shuttle tip and the needle plane may be deviated, affecting the stitch quality. Therefore, the operator needs to manually loosen the fixing screw of the shuttle holder, move the shuttle holder to the appropriate position, and re-fix it, while ensuring that the gap between the rotating shuttle tip and the needle plane is maintained between 0.05-0.07mm. Improper adjustment may cause needle skipping or rotating shuttle collision, affecting normal sewing.

[0004] In addition, the feed dog and the needle plate also need to be replaced simultaneously. Due to the change of the needle distance, the original feed dog cannot be aligned with the new needle position, and if it is not replaced, it may cause uneven feeding and affect the sewing effect. Similarly, the needle hole position on the original needle plate may not match the new needle distance, and if it is continued to be used, it may cause the needle to hit the needle plate or affect the smooth feeding. The traditional method requires disassembling the fixing screw, replacing the feed dog matching the new needle distance, and reassembling and fixing. This process is cumbersome to operate, increases the adjustment difficulty and time cost, and requires experienced operators to accurately adjust, otherwise it may affect the sewing quality.

[0005] Therefore, how to conveniently adjust the distance between the left and right needle bars of the double needle machine has become a technical problem that needs to be solved by those skilled in the art. SUMMARY

[0006] The present application provides a shuttle holder assembly module of a sewing equipment, which can avoid a series of cumbersome operations such as manually loosening the shuttle holder, adjusting the feed dog, and replacing the needle plate when replacing the needle position. It realizes the linkage adjustment of the shuttle holder, rotating shuttle, needle plate, and feed dog, greatly improves the adjustment efficiency and production efficiency, and provides a basis for automatic control of needle position adjustment.

[0007] In one embodiment of the present application, a shuttle holder assembly module of a sewing equipment is disclosed, which is used to cooperate with a needle of the sewing equipment to operate a sewing thread, the sewing equipment comprising a lower shaft providing driving force, and the shuttle holder assembly module comprising:

[0008] A shuttle holder, mounted on the lower shaft and slidingly positioned along the lower shaft;

[0009] A rotating shuttle, linked with the lower shaft, the rotating shuttle being rotationally mounted on the shuttle holder;

[0010] A needle plate, fixed on the shuttle holder, the needle plate being provided with an avoiding opening;

[0011] A feed dog, linked with the lower shaft, the feed dog being movably arranged in the avoiding opening;

[0012] During the sliding of the shuttle holder along the lower shaft, the rotating shuttle, the needle plate and the feed dog are synchronously followed by the shuttle holder.

[0013] The following also provides several optional modes, but not as an additional limitation to the above overall scheme, just a further supplement or preferred, without technical or logical contradiction, each optional mode can be combined alone for the above overall scheme, but also can be combined between multiple optional modes.

[0014] In one embodiment, the shuttle holder assembly module further comprises:

[0015] A feed shaft, linked with the lower shaft and arranged in parallel with the lower shaft, the shuttle holder being slidingly sleeved on the feed shaft, the lower shaft and the feed shaft being coupled to drive the feed dog.

[0016] In one embodiment, the shuttle holder assembly module further comprises:

[0017] A feed linkage mechanism, the feed linkage mechanism comprising a feed cam rotating with the lower shaft, a feed rocker arm rotating with the feed shaft, and a feed connecting rod linked between the feed cam and the feed rocker arm.

[0018] In one embodiment, the shuttle holder assembly module further comprises:

[0019] A lift dog sliding shaft, rotationally mounted on the shuttle holder, the lift dog sliding shaft being slidingly positioned on the lower shaft and synchronously rotating with the lower shaft, the rotation of the lift dog sliding shaft further driving the rotating shuttle.

[0020] In one embodiment, the shuttle holder assembly module further comprises:

[0021] A feed sliding shaft, rotationally mounted on the shuttle holder, the feed sliding shaft being slidingly positioned on the feed shaft and synchronously rotating with the feed shaft;

[0022] The rotations of the lift dog sliding shaft and the feed sliding shaft are coupled to drive the feed dog.

[0023] In one embodiment, the shuttle holder assembly module further comprises:

[0024] The feed dog linkage mechanism comprises a lift dog cam rotating with the lift dog slide shaft, a lift dog connecting rod driven by the lift dog cam, a feed dog crank rotating with the feed dog slide shaft, and a feed dog frame hingedly connected with the lift dog connecting rod and the feed dog crank at two ends, respectively. The feed dog is mounted on the feed dog frame.

[0025] In one embodiment, the shuttle holder has a rotating fitting position with the rotating shuttle, a channel is formed in the shuttle holder for supplying lubricating medium to the rotating fitting position, and one part of the channel is a controllable section;

[0026] An adjusting member is movably mounted on the shuttle holder and acts on the controllable section to change the supply amount of lubricating medium.

[0027] In one embodiment, a deformable pipe is mounted in the controllable section, the two ends of the pipe are sealingly connected to the channel, an oil line is arranged in the channel, and the pipe is deformed under the action of the adjusting member and presses the oil line.

[0028] In one embodiment, the adjusting member is an adjusting screw screwed on the shuttle holder, and the adjusting screw has an exposed control end and an adjusting end acting on the controllable section.

[0029] In one embodiment of the present application, a sewing device of a double needle machine is also disclosed, which comprises a lower shaft and a shuttle holder assembly module mounted on the lower shaft. The shuttle holder assembly module adopts the above technical solution, and the shuttle holder assembly module is two sets and has an adjustable spacing along the lower shaft.

[0030] The shuttle holder assembly module of the present application forms a basic adjustment unit that can be linked and adjusted through the shuttle holder, the rotating shuttle, the needle plate, and the feed dog. The change of the position of the basic adjustment unit relative to the lower shaft realizes the change of the needle position, thereby effectively solving the cumbersome operation of manually loosening the shuttle holder, adjusting the feed dog, and replacing the needle plate when changing the needle position. More importantly, the design of the above basic adjustment unit reduces the automation difficulty of needle position adjustment, making the entire adjustment process more efficient and accurate. Therefore, the above technical solution has the technical advantages of low operation difficulty, high production efficiency, high intelligence, and good adaptability to different clothing process requirements. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creating laborious work.

[0032] Figure 1 Base part of the sewing machine in the embodiment of the present application;

[0033] Figure 2 Base part of the sewing machine in the embodiment of the present application; Figure 1 Base part of the sewing machine in the embodiment of the present application;

[0034] Figure 3 Base part of the sewing machine in the embodiment of the present application; Figure 2 Base part of the sewing machine in the embodiment of the present application;

[0035] Figure 4 Base part of the sewing machine in the embodiment of the present application;

[0036] Figure 5 Base part of the sewing machine in the embodiment of the present application; Figure 4 Base part of the sewing machine in the embodiment of the present application;

[0037] Figure 6 Base part of the sewing machine in the embodiment of the present application;

[0038] Figure 7 Base part of the sewing machine in the embodiment of the present application; Figure 6 Base part of the sewing machine in the embodiment of the present application;

[0039] Figure 8 Base part of the sewing machine in the embodiment of the present application;

[0040] Figure 9 Base part of the sewing machine in the embodiment of the present application;

[0041] Figure 10 Base part of the sewing machine in the embodiment of the present application; Figure 9 Base part of the sewing machine in the embodiment of the present application;

[0042] Figure 11 Base part of the sewing machine in the embodiment of the present application;

[0043] Figure 12 Base part of the sewing machine in the embodiment of the present application;

[0044] The component reference numbers are as follows:

[0045] 100, shuttle; 101, rotating shuttle; 102, needle plate; 1021, avoiding port; 103, lifting slide shaft; 1031, lifting slot; 1032, rotating shuttle gear; 104, feed slide shaft; 105, controllable section; 1051, adjusting member; 1052, pipe member; 1053, oil line; 1054, oil felt; 106, screw rod; 1061, nut seat; 1062, driving motor; 1063, transmission belt;

[0046] 200. Feed dog; 201. Feed dog shaft; 202. Feed dog linkage; 2021. Feed dog cam; 2022. Feed dog rocker; 2023. Feed dog link; 2024. Feed dog big link; 2025. Feed dog small link; 2026. Switch; 203. Feed dog linkage; 2031. Lift cam; 2032. Lift link; 2033. Feed crank; 2034. Feed dog carrier; 2035. Adjusting screw; 2036. Feed dog eccentric.

[0047] 902. Base; 9021. Table; 903. Lower shaft. DETAILED DESCRIPTION

[0048] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application can be practiced without using some or all of these specific details. In other instances, well known process steps have not been described in detail in order to avoid obscuring the present application.

[0049] It should be noted that when a component is referred to as being "on" or "set on" another component, it can be directly on the other component or there can be an intervening component. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or there can be an intervening component. The terms "vertical", "horizontal", "up", "down", "left", "right", and similar expressions used in the specification are used for the purpose of explanation only and are not intended to indicate the only orientation of the present application.

[0050] In addition, the terms "first", "second", and the like, are used only to describe various conditions and do not indicate or imply the relative importance of the indicated technical features. Thus, a feature defined with "first", "second", etc. can include at least one of the features explicitly or implicitly. In the description of the present application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly specified.

[0051] In the present application, unless specifically defined and limited otherwise, the first feature is "on", "under", "above" or "over" the second feature can be that the first feature is in direct contact with the second feature, or the first feature is indirectly in contact with the second feature through an intermediate medium. Moreover, the first feature is "on", "above" and "over" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height (or in a use state, or in a certain drawing perspective). The first feature is "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height (or in a use state, or in a certain drawing perspective).

[0052] Unless otherwise defined, all technical and scientific terms used in the specification of the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the specification of the present application includes any and all combinations of one or more related listed items.

[0053] In order to solve the current situation that manual loosening of the shuttle holder, adjustment of the feed dog and replacement of the needle plate are required when replacing the needle position, one embodiment of the present application discloses a shuttle holder assembly module of a sewing equipment for cooperating with a needle of the sewing equipment to operate a sewing thread, the needle moves relative to a sewing table 9021 of the sewing equipment and cooperates with the shuttle holder assembly module to implement sewing, referring to the accompanying Figure 1 to the accompanying Figure 5 As shown in the drawings, the sewing equipment includes a lower shaft 903 providing driving force, and the shuttle holder assembly module of the present embodiment includes:

[0054] A shuttle holder 100 is mounted on the lower shaft 903 and is slidingly positioned in cooperation with the lower shaft 903;

[0055] A rotating shuttle 101 is linked with the lower shaft 903, and the rotating shuttle 101 is rotationally mounted on the shuttle holder 100;

[0056] A needle plate 102 is fixed to the shuttle holder 100, and the needle plate 102 is provided with a clearance 1021;

[0057] A feed dog 200 is linked with the lower shaft 903, and the feed dog 200 is movably arranged in the clearance 1021;

[0058] During the sliding of the shuttle holder 100 along the lower shaft 903, the rotating shuttle 101, the needle plate 102 and the feed dog 200 are all synchronously followed along the axial movement of the shuttle holder 100 along the lower shaft 903.

[0059] In this embodiment, the shuttle holder 100, the rotating shuttle 101, the needle plate 102, and the feed dog 200 form a basic adjustment unit that can move as a whole relative to the lower shaft 903 to achieve linkage adjustment. There is no need to adjust each component in the shuttle holder assembly module, especially components that need to cooperate with the needle, thread, and fabric, and components that need to adapt to the change of double needle spacing. The change of needle position is achieved by the overall movement of the basic adjustment unit, effectively solving the cumbersome operation when changing the needle position and improving the adjustment efficiency.

[0060] For specific details of the arrangement of the shuttle holder assembly module, please refer to the accompanying Figure 4 to the accompanying Figure 10 The preferred technical solutions are exemplarily given. For example, the shuttle holder assembly module further includes a feed shaft 201 that is linked to the lower shaft 903 and arranged in parallel with the lower shaft 903. The shuttle holder 100 is slidably sleeved on the feed shaft 201, that is, the shuttle holder 100 moves along the lower shaft 903 and the feed shaft 201 at the same time to achieve the position adjustment of the shuttle holder assembly module and the adjustment of the needle position. The lower shaft 903 and the feed shaft 201 are coupled to drive the feed dog 200, and the movement of the feed dog 200 is controlled at least by the driving of the lower shaft 903 and the feed shaft 201. The lower shaft 903 and the feed shaft 201 can be independently configured with a driving source, or can be linked to each other. When they are linked to each other, the rotation of the lower shaft 903 can achieve the preset movement of the feed shaft 201. Please refer to the accompanying Figure 2 In the embodiment shown, the shuttle holder assembly module further includes a feed linkage mechanism 202, which includes a feed cam 2021 that rotates with the lower shaft 903, a feed rocker arm 2022 that rotates with the feed shaft 201, and a feed connecting rod 2023 that is linked between the feed cam 2021 and the feed rocker arm 2022. In this embodiment, the rotation of the lower shaft 903 can achieve the reciprocating swing of the feed shaft 201. The feed connecting rod 2023 can be a single component, or a rod group including multiple components linked to each other. For example, in the embodiment shown in the accompanying Figure 3 In the embodiment shown, the feed connecting rod 2023 specifically includes a feed large connecting rod 2024 that cooperates with the feed cam 2021, a feed small connecting rod 2025 that is hinged with the feed large connecting rod 2024 and the feed rocker arm 2022 at the same time, and a switch 2026 for controlling the movement posture of the feed connecting rod 2023. The switch 2026 is connected at both ends with the base 902 for providing the sewing table 9021, and at the middle part with the hinge shaft between the feed large connecting rod 2024 and the feed small connecting rod 2025. The switch 2026 controls the movement posture of the feed connecting rod 2023 by controlling the movement of the hinge shaft between the feed large connecting rod 2024 and the feed small connecting rod 2025, thereby achieving the accurate linkage between the lower shaft 903 and the feed shaft 201.

[0061] The shuttle holder 100 needs to achieve stable power transmission while moving relative to the lower shaft 903 and the feed shaft 201. Please refer to the accompanying Figure 6 to the accompanyingFigure 10 In the illustrated embodiment, the shuttle holder assembly module further comprises a lifting slide shaft 103, which is rotatably mounted on the shuttle holder 100. The lifting slide shaft 103 is sleeved on the lower shaft 903 and rotates synchronously with the lower shaft 903. The rotation of the lifting slide shaft 103 is further transmitted to the rotating hook 101. The lifting slide shaft 103 is used to drive the rotating hook 101 and the feed dog 200 simultaneously. The rotating hook gear 1032 connected with the rotating hook 101 is fixed on the lifting slide shaft 103, and the lifting slide shaft 103 drives the rotating hook 101 to move during the rotation of the lower shaft 903. In the embodiment, the lifting slide shaft 103 is a cylindrical structure sleeved on the lower shaft 903, and the lifting slide shaft 103 and the lower shaft 903 are matched by key grooves. Specifically, the inner circumferential surface of the lifting slide shaft 103 is provided with a lifting slot 1031 extending in the axial direction, and the lower shaft 903 is provided with a lifting key matched with the lifting slot 1031. The extension length of the lifting slot 1031 is greater than the extension length of the lifting key to allow the lifting slide shaft 103 to freely slide axially on the lower shaft 903 and to be connected radially. The lifting slide shaft 103 is provided with a shoulder bearing, and the lifting slide shaft 103 and the shoulder bearing are in interference fit to position each other. When the lifting slide shaft 103 moves, it can drive the parts (such as the shuttle holder 100 mentioned above) fixed on the lifting slide shaft 103 to move together. Referring to FIG. 2, the lifting slide shaft 103 is provided with a lifting slot 1031, and the lifting key on the lower shaft 903 is matched with the lifting slot 1031. The lifting slide shaft 103 is sleeved on the lower shaft 903, and the lifting slide shaft 103 and the lower shaft 903 are matched by key grooves. The lifting slide shaft 103 is provided with a shoulder bearing, and the lifting slide shaft 103 and the shoulder bearing are in interference fit to position each other. When the lifting slide shaft 103 moves, it can drive the parts (such as the shuttle holder 100 mentioned above) fixed on the lifting slide shaft 103 to move together. Figure 10 As shown, the lifting slide shaft 103 adopts a stepped section design, and the inner hole of the lifting slide shaft 103 includes a contact section matched with the lower shaft 903 and / or the lifting key and an edge section. The inner hole diameter of the edge section is smaller than that of the contact section. For example, the inner hole diameter of the edge section is 50% to 90% of that of the contact section. This arrangement can avoid the deformation of the lifting slide shaft 103 caused by locking other components (such as the lifting cam 2031 mentioned below) on the lifting slide shaft 103, so that the lifting slide shaft 103 will not be locked and deformed to cause the problem of axial movement jamming, thereby improving the smoothness of movement. In order to facilitate the cooperation between the lifting slide shaft 103 and other components, the outer circumferential surface of the lifting slide shaft 103 is provided with a stepped section corresponding to the stepped section of the inner hole.

[0062] Referring to FIG. 2, the lifting slide shaft 103 is provided with a lifting slot 1031, and the lifting key on the lower shaft 903 is matched with the lifting slot 1031. The lifting slide shaft 103 is sleeved on the lower shaft 903, and the lifting slide shaft 103 and the lower shaft 903 are matched by key grooves. The lifting slide shaft 103 is provided with a shoulder bearing, and the lifting slide shaft 103 and the shoulder bearing are in interference fit to position each other. When the lifting slide shaft 103 moves, it can drive the parts (such as the shuttle holder 100 mentioned above) fixed on the lifting slide shaft 103 to move together. Figure 6 to FIG. 2, the lifting slide shaft 103 is provided with a lifting slot 1031, and the lifting key on the lower shaft 903 is matched with the lifting slot 1031. The lifting slide shaft 103 is sleeved on the lower shaft 903, and the lifting slide shaft 103 and the lower shaft 903 are matched by key grooves. The lifting slide shaft 103 is provided with a shoulder bearing, and the lifting slide shaft 103 and the shoulder bearing are in interference fit to position each other. When the lifting slide shaft 103 moves, it can drive the parts (such as the shuttle holder 100 mentioned above) fixed on the lifting slide shaft 103 to move together. Figure 10In the shown embodiment, the shuttle holder assembly module further comprises a feed slide shaft 104, which is rotatably mounted on the shuttle holder 100, and the feed slide shaft 104 is sleeved on the feed shaft 201 and synchronously rotates with the feed shaft 201. In the embodiment, the feed slide shaft 104 is a cylindrical structure sleeved on the feed shaft 201, and the feed slide shaft 104 and the feed shaft 201 are matched by key grooves. The feed slide shaft 104 is entirely cylindrical and the inner hole is designed in steps, the inner hole of the feed slide shaft 104 includes an edge section and a contact section matched with the feed key on the feed shaft 201 and / or the corresponding feed shaft 201, the contact section is matched with the feed shaft 201 and / or the feed key in clearance, and the inner hole diameter of the edge section is smaller than that of the contact section. The outer peripheral surface of the feed slide shaft 104 is smooth.

[0063] With reference to the accompanying drawings Figure 5 , the accompanying drawings Figure 8 In the shown embodiment, the rotation of both the lifting slide shaft 103 and the feed slide shaft 104 is coupled to the feed dog 200, that is, the movement of the feed dog 200 is controlled by the linkage of the lifting slide shaft 103 and the feed slide shaft 104. In specific implementation, the shuttle holder assembly module further comprises a feed dog linkage mechanism 203, which includes a lifting cam 2031 rotating with the lifting slide shaft 103, a lifting connecting rod 2032 driven by the lifting cam 2031, a feed crank 2033 rotating with the feed slide shaft 104, and a feed frame 2034 hingedly connected at both ends of the lifting connecting rod 2032 and the feed crank 2033, and the feed dog 200 is mounted on the feed frame 2034. Through the feed dog linkage mechanism 203, the movement of the lifting slide shaft 103 and the feed slide shaft 104 can be coupled to the expected movement of the feed frame 2034 and the feed dog 200.

[0064] The specific assembly relationship is described as follows: the lifting tooth cam 2031 is fixed on the lifting tooth sliding shaft 103, the lifting tooth connecting rod 2032 is matched on the lifting tooth sliding shaft 103, the cover plate is fixed on the lifting tooth cam 2031 to prevent the axial movement of the lifting tooth connecting rod 2032, the other end of the lifting tooth connecting rod 2032 is hinged with the cloth feeding frame 2034 through the shaft position screw, the cloth feeding tooth 200 is fixed on the cloth feeding frame 2034 through the screw, the bottom of the cloth feeding tooth 200 is provided with two fine adjustment screws 2035, the spatial posture of the cloth feeding tooth 200 relative to the cloth feeding frame 2034 can be adjusted by adjusting the height of the fine adjustment screw 2035, for example, the inclination degree of the cloth feeding tooth 200 can be adjusted. The cloth feeding crank 2033 is fixed on the cloth feeding sliding shaft 104 through the screw, the other end of the cloth feeding crank 2033 is hinged with the cloth feeding frame 2034 through the cloth feeding eccentric pin 2036, the cloth feeding eccentric pin 2036 is fixed on the cloth feeding crank 2033 through the locking screw, the up-down position of the cloth feeding tooth 200 can be adjusted by rotating the cloth feeding eccentric pin 2036; when the lifting tooth sliding shaft 103 rotates, the lifting tooth cam 2031 also rotates, the cloth feeding frame 2034 is driven to move up and down by the lifting tooth connecting rod 2032, the cloth feeding sliding shaft 104 swings, and the cloth feeding crank 2033 swings, so that the cloth feeding crank 2033 drives the cloth feeding frame to move forward and backward.

[0065] The cloth feeding frame 2034 is an integral structure. Specifically, the cloth feeding frame 2034 is a herringbone shape, and has a first arm extending towards the cloth feeding sliding shaft 104 and a second arm extending towards the lifting tooth sliding shaft 103. The first arm extends in the horizontal direction, the second arm extends in the height direction, the second arm is connected to the middle part of the first arm, and the two ends of the first arm are connected with the cloth feeding tooth 200 and the cloth feeding crank 2033 respectively.

[0066] When the shuttle holder 100, the rotating shuttle 101, the needle plate 102 and the cloth feeding tooth 200 form a basic adjustment unit capable of moving relative to the lower shaft 903 and the cloth feeding shaft 201, the original lubricating medium conveying can also be optimized. Referring to the drawings Figure 11 and the drawings Figure 12In the shown embodiment, the shuttle holder 100 and the rotating shuttle 101 have a rotating fitting part, the shuttle holder 100 is provided with a channel for supplying lubricating medium to the rotating fitting part, one part of the channel is a controllable section 105; the shuttle holder 100 is movably provided with an adjusting member 1051, the adjusting member 1051 acts on the controllable section 105 to change the supply amount of the lubricating medium. Further, the controllable section 105 is provided with a deformable pipe 1052, the two ends of the pipe 1052 are sealingly connected to the channel, an oil line 1053 is arranged in the channel, the pipe 1052 is deformed and presses the oil line 1053 under the action of the adjusting member 1051. The adjusting member 1051 is an adjusting screw which is screwed to the shuttle holder 100, the adjusting screw has a control end exposed to the outside and an adjusting end acting on the controllable section 105. The adjusting end is provided with a pressing head for pressing the pipe 1052 and / or the oil line 1053. The pressing head is movably arranged on the adjusting end. The pressing head has a spherical pressing part and cooperates with the pipe 1052. The inside of the shuttle holder 100 is provided with an oil felt 1054 which cooperates with the oil line 1053. The oil felt 1054 is used to absorb and store the lubricating medium transmitted by the oil line 1053 and further deliver it to other components on the shuttle holder 100. The transmission of the lubricating medium in the inside of the shuttle holder 100 can also be realized by the oil line 1053.

[0067] In the technical solution of the present application, the shuttle holder 100, the rotating shuttle 101, the needle plate 102, the feed dog 200 and the feed shaft 201, and the lower shaft 903 are separated, so that the above-mentioned components are combined into a complete and relatively independent shuttle assembly module which can be freely moved. The shuttle assembly module simultaneously realizes the movement of the bobbin, the feed dog 200 and the needle plate 102 to ensure that the relative distance between the rotating shuttle 101 and the feed dog 200 remains unchanged. Before and after the needle position is changed, the synchronization of the gear rotating shuttle 101, the gap between the rotating shuttle 101 and the feed dog 200 do not need to be adjusted, avoiding the original need to loosen the gear, move the shuttle holder 100, adjust the rotating shuttle 101 and other complex debugging steps, greatly improving the convenience.

[0068] It can be understood that the shuttle assembly module is provided with a driving source for driving itself to slide relative to the feed shaft 201 and the lower shaft 903, which can be realized in various ways such as manual, motor drive, electromagnet drive, pneumatic drive, etc. Correspondingly, the shuttle assembly module is also provided with a positioning structure for keeping its relative position to the feed shaft 201 and the lower shaft 903, which can be an independent mechanism or provided by the driving source. For example, the driving source is a screw rod 106 which cooperates with the shuttle holder 100, and the shuttle holder 100 is provided with a nut seat 1061 which is screwed with the screw rod 106. Through the thread cooperation of the nut seat 1061 and the screw rod 106, the movement of the shuttle holder 100 can be realized. Figure 2 In the shown embodiment, the driving source is a screw rod 106 which cooperates with the shuttle holder 100, and the shuttle holder 100 is provided with a nut seat 1061 which is screwed with the screw rod 106. Through the thread cooperation of the nut seat 1061 and the screw rod 106, the movement of the shuttle holder 100 can be realized. In the attached drawings, the driving source is a screw rod 106 which cooperates with the shuttle holder 100, and the shuttle holder 100 is provided with a nut seat 1061 which is screwed with the screw rod 106. Through the thread cooperation of the nut seat 1061 and the screw rod 106, the movement of the shuttle holder 100 can be realized. Figure 2In the shown embodiment, the lead screw 106 is configured with a driving motor 1062, which is arranged in parallel with the lead screw 106 and is drivingly connected with the lead screw 106 through a transmission belt 1063. When the lead screw 106 rotates, the shuttle holder 100 moves relative to the base and drives the corresponding shuttle assembly module to slide relative to the cloth feeding shaft 201 and the lower shaft 903. When the lead screw stops rotating, the lead screw can prevent the shuttle holder from moving. The stop of the shuttle holder can be achieved by the thread cooperation parameters between the shuttle holder and the lead screw, for example, one-way transmission; or by the stop torque of the driving motor 1062 in the static state. In addition to the driving motor, the lead screw 106 can also be manually driven.

[0069] In addition to the above-mentioned driving form of the lead screw 106 configured with power to realize passive movement of the nut seat 1061, the shuttle assembly module can also be configured with power by the nut seat 1061 to realize active movement, for example, in an embodiment, a fixed lead screw is provided on the base, and a driving sleeve that rotates relative to the lead screw is fixed on the shuttle. The driving sleeve rotates to drive the shuttle to have a movement trend relative to the lead screw and to move relative to the base.

[0070] When the shuttle assembly module is provided with multiple shuttle assembly modules, the shuttle assembly modules have different cooperation modes according to different driving forms, for example, the shuttle 100 of each shuttle assembly module is independently driven to realize independent adjustment. For another example, the shuttle 100 of each shuttle assembly module is synchronously driven to realize synchronous adjustment. In combination with the above description, a sewing equipment of a double-needle machine is also disclosed in an embodiment of the present application, which comprises a lower shaft 903 and a shuttle assembly module mounted on the lower shaft 903. The shuttle assembly module adopts the technical solution described above, the shuttle assembly module is two sets and the distance between the two sets is adjustable along the lower shaft 903. The two sets of shuttle assembly modules can be adjusted in linkage or independently, and the needle position adjustment of the shuttle assembly module can realize flexible change of stitches. The specific adjustment mode of the shuttle assembly module can be referred to the description above, and other parts of the sewing equipment can be implemented in combination with the prior art, which will not be described here.

[0071] The technical solution in the present application at least includes the following technical advantages:

[0072] 1. Realize automatic adjustment of needle position and improve operation convenience: the driving mechanism can control the movement of the rotating shuttle module including the shuttle holder and the cloth feeding tooth, and the user only needs to select the required needle position on the control system, without manually loosening the screw for adjustment. Overcome the technical defects of relying on manual operation in the traditional adjustment mode, avoid errors, realize automatic and accurate adjustment, and improve the convenience of operation and the quality of sewing.

[0073] 2. The feed dog and the shuttle are independently controlled, reducing the influence on the rotating shuttle: In the traditional double needle machine, when adjusting the stitch, the rotating shuttle position needs to be adjusted again, otherwise it may affect the sewing effect. The adjustment of the feed dog in this application will not affect the cooperation with the rotating shuttle, so that the feed dog can avoid the additional adjustment of the rotating shuttle position during adjustment, ensure the stability of the cooperation between the rotating shuttle and the needle, and improve the reliability of the equipment.

[0074] 3. Optimized structure, reducing maintenance cost: The rotating shuttle module in this application adopts a sealed lubricating grease structure, and the inside of the gear part is filled with lubricating grease, so that frequent oiling is not required, thereby reducing the maintenance requirement. In addition, the rotating shuttle lubrication adopts adjustable oil line delivery technology, which accurately controls the amount of lubricating oil, avoids the phenomenon of rotating shuttle wear or needle skipping caused by insufficient lubrication, thereby prolonging the service life of the equipment and reducing the maintenance cost.

[0075] 4. Improve the intelligent degree, reduce the operation threshold: The traditional adjustment method requires experienced technicians to accurately operate, while the technical solution of this application can realize intelligent adjustment, and ordinary operators can easily complete the setting. This not only reduces the dependence on skilled workers, but also improves the popularity of the equipment, so that it can adapt to the needs of more different garment processes, and improve the market competitiveness.

[0076] The technical features of the above-described embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure. When the technical features in different embodiments are embodied in the same drawing, it can be considered that the drawing also discloses the combination of each embodiment involved.

[0077] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, some modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A shuttle race assembly module for a sewing apparatus for cooperating with a needle of the sewing apparatus to operate a thread, the sewing apparatus including a lower shaft providing a driving force, characterised in that, The shuttle holder assembly module comprises: a shuttle holder installed on the lower shaft and slidingly positioned along the lower shaft; a rotating shuttle linked with the lower shaft, the rotating shuttle being rotatably installed on the shuttle holder; a needle plate fixed on the shuttle holder, the needle plate being provided with an avoiding opening; a feed dog linked with the lower shaft, the feed dog being movably arranged in the avoiding opening; during the sliding of the shuttle holder along the lower shaft, the rotating shuttle, the needle plate and the feed dog are synchronously followed by the shuttle holder.

2. The shuttle race assembly module of the sewing apparatus according to claim 1, characterized in that, The shuttle holder assembly module further comprises: a feed shaft linked with the lower shaft and arranged in parallel with the lower shaft, the shuttle holder being slidingly sleeved on the feed shaft, the lower shaft and the feed shaft being coupled to drive the feed dog.

3. The shuttle race assembly module of claim 2, wherein, The shuttle holder assembly module further comprises: a feed linkage mechanism, the feed linkage mechanism comprising a feed cam rotating with the lower shaft, a feed rocker arm rotating with the feed shaft and a feed connecting rod linked between the feed cam and the feed rocker arm.

4. The shuttle race assembly module of claim 2, wherein, The shuttle holder assembly module further comprises: a lift dog sliding shaft rotatably installed on the shuttle holder, the lift dog sliding shaft being slidingly positioned and sleeved on the lower shaft and synchronously rotating with the lower shaft, the rotation of the lift dog sliding shaft further driving the rotating shuttle.

5. The shuttle race assembly module of claim 4, wherein, The shuttle holder assembly module further comprises: a feed sliding shaft rotatably installed on the shuttle holder, the feed sliding shaft being slidingly positioned and sleeved on the feed shaft and synchronously rotating with the feed shaft; the rotation of the lift dog sliding shaft and the feed sliding shaft being coupled to drive the feed dog.

6. The shuttle race assembly module of claim 5, wherein, The shuttle holder assembly module further comprises: a feed dog linkage mechanism, the feed dog linkage mechanism comprising a lift dog cam rotating with the lift dog sliding shaft, a lift dog connecting rod driven by the lift dog cam, a feed crank rotating with the feed sliding shaft and a feed frame having two ends respectively hinged with the lift dog connecting rod and the feed crank, the feed dog being installed on the feed frame.

7. The shuttle race assembly module of claim 1 wherein, The shuttle holder and the rotating shuttle have a rotating fitting part therebetween, the shuttle holder is provided with a channel for supplying lubricating medium to the rotating fitting part, one part of the channel being a controllable section; an adjusting member is movably installed on the shuttle holder, the adjusting member acting on the controllable section to change the supply amount of lubricating medium.

8. The shuttle race assembly module of claim 7, wherein, A deformable pipe is installed in the controllable section, two ends of the pipe being sealingly connected in the channel, an oil line being arranged in the channel, the pipe being deformed under the action of the adjusting member and extruding the oil line.

9. The shuttle race assembly module of claim 7, wherein, The adjusting member is an adjusting screw screwed on the shuttle holder, the adjusting screw having an exposed control end and an adjusting end acting on the controllable section.

10. Sewing apparatus for a double needle machine comprising a lower shaft and a shuttle carriage assembly module mounted to said lower shaft, characterized in that, The shuttle holder assembly module of any one of claims 1 to 9 is used, the shuttle holder assembly module being two sets and having an adjustable distance along the lower shaft.

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