Stitching tool for stuffed toys

By employing a double-needle design, a water-cooling circulation system, and a directional reciprocating motion mechanism, the problems of needle overheating, skipped stitches, and thread breakage in sewing machines have been solved, achieving high-speed sewing and high-quality sewing results.

CN116103850BActive Publication Date: 2026-04-10SUPER YUANQI (ANKANG) SUPPLY CHAIN CO LTD
View PDF 3 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SUPER YUANQI (ANKANG) SUPPLY CHAIN CO LTD
Filing Date
2023-01-09
Publication Date
2026-04-10

AI Technical Summary

Technical Problem

Existing sewing machines are prone to problems such as needle overheating, skipped stitches, and broken threads during the sewing process, especially when using lubricating oil for cooling. The lubricating oil causes the yarn on the needle to stick together, making it impossible for the rotary hook to catch the yarn.

Method used

It adopts a dual-needle missing needle design, combined with a water-cooling circulation system and a directional reciprocating motion mechanism. The working state of the needle is switched by rotating 180°, the water-cooling circulation system is used to cool it down, and the needle rotation is prevented by guide and locking components. A wiping component is used to prevent water droplets from flowing into the working needle missing.

Benefits of technology

It effectively prevents needle overheating, avoids skipped stitches and thread breakage, ensures the continuity and quality of the sewing process, and meets the needs of high-speed sewing.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN116103850B_ABST
    Figure CN116103850B_ABST
Patent Text Reader

Abstract

The application discloses a plush toy sewing tool and relates to the sewing field.The tool comprises a workbench, a needle plate hole is formed in the workbench, a cavity is formed in the workbench and communicates with the needle plate hole, a guide piece is fixedly arranged on the workbench and is provided with a guide hole, two first accommodating holes are formed in the guide piece, a sliding rod is provided with a through hole penetrating along the axial direction of the sliding rod, two second accommodating holes are formed in the outer surface of the sliding rod along the axial direction of the sliding rod, one first accommodating hole and one second accommodating hole communicate with each other, the second accommodating holes and the through hole communicate with each other, the sliding rod is slidingly arranged in the guide hole, the two ends of a needle are provided with needle defects, the needle is rotationally arranged on the sliding rod, one end of the needle penetrates through the first accommodating hole and the second accommodating hole in sequence and is arranged in the through hole, a driving piece is used for driving the sliding rod to make directional reciprocating motion, a water cooling circulation system is arranged in the guide piece, and a rotating shuttle is arranged in the cavity.
Need to check novelty before this filing date? Find Prior Art

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sewing, in particular to a plush toy sewing tool. BACKGROUND

[0002] Chinese patent publication No. CN113684621A discloses a sewing machine with cooling function, belonging to the technical field of garment processing equipment, comprising a rack, a sewing needle, a connecting plate, a presser foot and an oil suction element. The sewing needle is installed at the lower end of the rack; the connecting plate is installed at the lower end of the rack and located on one side of the sewing needle; the presser foot is fixedly installed on the connecting plate, and the presser foot is provided with a avoiding hole for the sewing needle to pass through; the oil suction element is fixedly installed on the presser foot, and the oil suction element is provided with a oiling hole in sliding cooperation with the sewing needle, and the oiling hole is in communication with the avoiding hole. The sewing machine with cooling function of the application installs an oil suction element on the presser foot, and the oiling hole on the oil suction element is in communication with the avoiding hole on the presser foot. The sewing needle passes through the oiling hole and the avoiding hole in turn from top to bottom during work. Since the sewing needle and the oiling hole are in sliding cooperation, when the sewing needle passes through the oiling hole, the cooling oil on the oil suction element will be automatically applied to the sewing needle, achieving the purpose of cooling the sewing needle and avoiding the problem of heating of the sewing needle.

[0003] The above-mentioned scheme solves the technical problem of heating of the existing sewing machine, but when using the sewing machine for sewing, the problem of skipping lines is prone to occur. Since it adopts the method of applying cooling oil to the sewing needle to achieve cooling of the sewing needle, the principle of the sewing machine is that the needle makes reciprocating motion in the vertical direction, the shuttle hook of the rotating shuttle hooks the yarn in the threading hole of the needle and rotates one revolution to cover the yarn on the bobbin in the shuttle, and the needle moves upward to drive the yarn on the bobbin to move upward, thereby realizing one sewing. Since the needle is coated with lubricating oil, the lubricating oil will cause the yarn in the threading hole on the needle to stick together, thereby causing the shuttle hook to fail to hook the yarn in the threading hole, and ultimately causing the sewing process to skip lines, affecting the sewing effect of the woolen product.

[0004] Therefore, it is urgent to solve the existing problems. SUMMARY

[0005] To solve the above technical problems, the present application aims to provide a plush toy sewing tool to solve the technical problem of heating of the sewing needle.

[0006] To achieve the above-mentioned purpose, the present application provides a plush toy sewing tool, comprising:

[0007] a workbench, a needle plate hole is formed in the workbench, and a cavity in communication with the needle plate hole is also formed in the workbench;

[0008] A guide piece is fixedly arranged on the workbench and has a guide hole and two first clearance holes;

[0009] A slide rod has a through hole along its axial direction and two second clearance holes along its outer surface, the first clearance hole and the second clearance hole are communicated with each other, and the second clearance hole and the through hole are communicated with each other, the slide rod is slidably arranged in the guide hole;

[0010] A needle has needle defects at both ends, the needle is rotatably arranged on the slide rod, and one end of the needle passes through the first clearance hole and the second clearance hole and is arranged in the through hole;

[0011] A driving piece is used to drive the slide rod to make directional reciprocating motion;

[0012] A water cooling circulation system is arranged in the guide piece;

[0013] A rotating shuttle is arranged in the cavity.

[0014] The above technical scheme can prevent the needle from overheating. When the needle defects at one end of the needle heat up during long-term use, the needle is rotated by 180°, so that the needle defects at the other end of the needle are in working condition, and the needle defects at the heating end of the needle are in standby condition. The needle defects in standby condition are cooled by the water cooling circulation system, so that the temperature of the needle does not exceed the normal range, and the sewing of woolen fabrics is not affected.

[0015] Further to the above technical scheme, the guide piece comprises:

[0016] A support rod is fixedly arranged on the workbench;

[0017] A first plate is fixedly connected with the support rod, and one first clearance hole is arranged at the end of the first plate;

[0018] Two arc-shaped plates are fixedly arranged at the end of the first plate close to the first clearance hole, the guide hole is formed between the two arc-shaped plates, and another first clearance hole is formed between the two arc-shaped plates.

[0019] By adopting the technical scheme, the needle positioning and guiding purpose can be achieved. In the sewing process of the sewing machine, the needle stroke position of the needle is required to be certain. Generally, the needle is required to be located at the farthest stroke position, and the rotating hook tip is located at the middle of the needle hole at this time, and the error is generally between 2-3 mm, so that the normal sewing process can be ensured. If the rotating hook tip is close to the needle hole position of the needle, when the rotating hook tip picks the yarn on the needle, the yarn is easy to be broken. If the rotating hook tip is close to the end of the needle hole, the rotating hook tip cannot pick the yarn, and the thread skipping occurs. Obviously, the above two situations are not allowed to occur in the actual operation process. By arranging two arc-shaped plates to form a guide hole, the positioning and guiding effect can be provided for the movement of the slide rod, and the needle is arranged on the slide rod, so that the needle also moves directionally with the slide rod, and the position accuracy of the needle can be ensured, and the thread skipping or breaking in the sewing process can be prevented.

[0020] As a further description of the above technical scheme, the driving member comprises:

[0021] The connecting rod is hingedly connected to the slide rod at one end;

[0022] The crank is hingedly connected to the connecting rod at one end;

[0023] The power member is used to drive the rotation of the crank.

[0024] By adopting the above technical scheme, the continuous high-speed sewing purpose can be achieved. In the sewing process, the path of the needle is directional reciprocating motion. If the slide rod is directly connected to the air cylinder, the directional reciprocating motion of the needle can be achieved, but the high-speed motion of the needle cannot be achieved due to the relatively slow motion of the air cylinder, and the work efficiency is also reduced. By arranging the connecting rod, the crank and the power member (motor), the industrial production needs can be met. The continuous rotation can be changed into directional reciprocating motion by using the crank connecting rod mechanism, and the high-speed rotation of the motor can also ensure the motion frequency of the needle, so that the high-speed sewing is achieved, and the industrial needs are met.

[0025] As a further description of the above technical scheme, the locking member is used to lock and fix the needle on the slide rod.

[0026] By adopting the above technical scheme, the rotation of the needle in the sewing process can be prevented, and the thread skipping or breaking of the rotating hook in the working process can be prevented.

[0027] As a further description of the above technical scheme, the locking member comprises a cam, the cam is hingedly connected in the slide rod, and the cam and the needle share a hinged part; when the needle is in the working state, the cam and the inner wall of the slide rod abut.

[0028] By adopting the above technical scheme, the limiting purpose of the needle can be achieved. Since the position accuracy of the needle and the rotating hook is fixed during sewing, two needle gaps are provided in the application to prevent the needle from overheating. During this process, the needle is rotatably arranged on the slide rod, and the yarns at the needle holes of the two needle gaps on the needle are connected with the guide wire mechanisms. If the needle rotates 360°, interference will occur between the two guide wire mechanisms corresponding to the two needle gaps on the needle, thereby affecting the normal sewing. To solve this technical problem, the cam is provided, so that when the needle is located in the vertical direction, the cam and the inner wall of the slide rod abut each other, thereby achieving a limiting effect, preventing the needle from rotating 360°, and thereby preventing interference between the guide wire mechanisms. In the application, since the cam is provided, the rotating direction of the needle is clockwise 180°, and then counterclockwise 180° to reset, and the needle cannot rotate 360°. That is, the needle can only switch the needle gap by forward rotation and reset by reverse rotation.

[0029] As a further description of the above technical scheme, the locking member further comprises a disc spring, which is arranged at the hinge between the cam and the slide rod.

[0030] By adopting the above technical scheme, the purpose of locking the needle on the slide rod in the working state can be achieved. Although the cam can achieve the purpose of limiting the needle to prevent interference between the guide wire mechanisms, when the needle moves downward and passes through the textile or the rotating hook of the rotating hook hooks the yarn of the needle, the needle will tend to rotate, thereby causing the relative position between the needle and the rotating hook to be dislocated, and thereby affecting the subsequent sewing of the woolen fabric. To solve this technical problem, the disc spring is provided, thereby increasing the damping force between the cam and the slide rod, and thereby preventing the needle from rotating under the action of the rotating hook.

[0031] As a further description of the above technical scheme, at least three wiping members are further included, which are fixedly arranged on the arc-shaped plate, one end of the needle is arranged in the wiping member, and the one end of the needle selectively abuts against the wiping member.

[0032] By adopting the technical scheme, the water drops on the needle can be prevented. When the needle lacks are switched, the temperature of the upper needle lack is too high, and the water vapor in the air around the needle lack under the action of the water cooling circulation system is easily liquefied to form water drops on the needle. The water drops flow along the needle to the working needle lack below the needle, and the yarn at the needle hole of the needle lack is stuck under the action of the water drops. When the needle lack moves downward, the shuttle cannot hook the yarn on the needle lack, thereby affecting the normal sewing. The wiping member can effectively solve the problem. When the needle moves up and down, the wiping member moves relative to the needle because the wiping member is fixed on the arc-shaped plate. The water drops on the needle are wiped by the wiping member in the process that the needle moves up and down, thereby preventing the water drops on the needle from flowing into the working needle lack of the needle.

[0033] As a further description of the technical scheme, the arc-shaped plate is provided with a plurality of blind holes, and the arc-shaped plate is also provided with an air inlet hole and an air outlet hole which are in communication with the blind holes. The slide rod is also provided with a wiping slot, and the wiping member comprises:

[0034] an elastic member which is fixedly connected with the blind hole;

[0035] a sliding block which is fixedly connected with the elastic member and is slidingly and sealingly arranged in the blind hole;

[0036] a connecting rod which is fixedly connected with the sliding block and passes through the wiping slot;

[0037] a water-absorbing cotton which is fixedly connected with the connecting rod and selectively abuts against the needle.

[0038] By adopting the technical scheme, the water drops on the needle can be wiped. After the needle lacks are switched, the air inlet hole is ventilated to increase the air pressure in the blind hole, thereby driving the sliding block to move. At this time, the water-absorbing cottons move towards the needle. The needle is continuously wiped by the water-absorbing cottons in the process that the needle moves up and down, thereby effectively preventing the water drops on the needle from flowing into the working needle lack of the needle. When the needle lacks need to be switched again, the air outlet hole is opened, the sliding block moves away from the needle under the action of the elastic member, and finally the needle is manually rotated.

[0039] As a further description of the technical scheme, the water-absorbing cottons are located between the two needle lacks of the needle.

[0040] By adopting the above technical scheme, the purpose of preventing the needle defects of the standby machine needle from being adhered to the water-absorbing cotton and thereby affecting the appearance of the wool fabric can be achieved. When the water-absorbing cotton is used to wipe the machine needle, if the needle tip of the machine needle is located in the water-absorbing cotton, at this time, the needle tip will be attached to part of the water-absorbing cotton, and when the needle defects of the standby machine needle switch to the working state, the part of the water-absorbing cotton will be sewn to the wool fabric under the action of rotation, thereby greatly affecting the appearance of the wool fabric. By arranging the water-absorbing cotton between the two needle defects of the machine needle, the water-absorbing cotton can only wipe the needle shank of the machine needle during wiping, and the needle defects of the machine needle are not wiped, thereby preventing the water-absorbing cotton from being attached to the needle defects. At this time, since the water-absorbing cotton cannot wipe the standby needle defects of the machine needle, water droplets will appear in the needle defects at this time. When switching again, that is, when the standby needle defects are in the working state, the water droplets at this place can be wiped off manually, and the sewing machine can continue to be used.

[0041] In summary, the present application includes at least one of the following beneficial technical effects:

[0042] 1. By arranging two needle defects on the machine needle and arranging a water-cooling circulation system, the purpose of preventing the machine needle from being heated can be achieved.

[0043] 2. By arranging a locking member, the purpose of preventing the machine needle from rotating and thereby causing the rotating shuttle to jump or break the line can be achieved.

[0044] 3. By arranging a wiping member, the purpose of preventing water droplets from appearing on the machine needle and flowing into the working needle defects of the machine needle and thereby causing the rotating shuttle to always jump the line can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 is a perspective view of a plush toy sewing tool according to the present application;

[0046] Figure 2 is a perspective view of a plush toy sewing tool according to the present application; Figure 1 is an enlarged view of A of the plush toy sewing tool according to the present application;

[0047] Figure 3 is a sectional view of a plush toy sewing tool according to the present application;

[0048] Figure 4 is a connecting sectional view of a guide member and a wiping member of a plush toy sewing tool according to the present application;

[0049] Figure 5 is a connecting sectional view of a locking member, a machine needle, and a slide rod of a plush toy sewing tool according to the present application.

[0050] In the drawings:

[0051] 1, workbench; 11, needle plate hole; 12, cavity; 2, guide; 21, support rod; 22, first plate; 221, first let hole; 23, arc plate; 231, guide hole; 232, blind hole; 233, air inlet hole; 234, air outlet hole; 3, slide rod; 31, through hole; 32, second let hole; 33, wiping notch; 4, needle; 41, needle defect; 5, driving part; 51, connecting rod; 52, crank; 53, power part; 6, locking part; 61, cam; 62, disc spring; 7, wiping part; 71, elastic part; 72, sliding block; 73, connecting rod; 74, water-absorbing cotton. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0053] Some embodiments of the present application will be described in detail below with reference to the drawings. The following embodiments and features in the embodiments can be combined with each other without conflict.

[0054] The present application provides a kind of plush toy stitching tool, please refer to Figure 1 As shown, and in combination with Figure 2 As shown, it includes workbench 1, guide 2, slide rod 3, needle 4, driving part 5, water cooling circulation system (not shown in the figure), rotating shuttle (not shown in the figure), locking part 6 and three wiping parts 7, wherein:

[0055] Please refer to Figure 3 As shown, workbench 1, needle plate hole 11 is opened in workbench 1, and cavity 12 is also opened in workbench 1 and communicated with needle plate hole 11.

[0056] Please refer to Figure 1 As shown, guide 2 is used to position guide for slide rod 3 movement in vertical direction. It includes support rod 21, first plate 22 and two arc plates 23. Wherein: support rod 21 is fixedly arranged on workbench 1;Please refer to Figure 2 As shown, first plate 22 and support rod 21 are fixedly connected, and the front end of first plate 22 is provided with first let hole 221;Two arc plates 23 are fixedly arranged on the front end of first plate 22, and guide hole 231 is formed between the two arc plates 23, and another first let hole 221 is formed between the right ends of the two arc plates 23, please refer to Figure 4 As shown, three blind holes 232 are opened in arc plate 23, and air inlet hole 233 and air outlet hole 234 are also opened in arc plate 23 and communicated with blind hole 232.

[0057] Please refer to Figure 2 As shown in the figure, the slide rod 3 is provided with a through hole 31 penetrating along the axial direction of the slide rod 3, and the outer surface of the slide rod 3 is provided with two second accommodating holes 32 along the axial direction, one first accommodating hole 221 and one second accommodating hole 32 are communicated with each other, and the second accommodating hole 32 and the through hole 31 are communicated with each other. The slide rod 3 is slidingly arranged in the guide hole 231, and the slide rod 3 is further provided with a wiping notch 33.

[0058] Please refer to Figure 1 As shown in the figure, the needle 4 is provided with a needle recess 41 at each of the upper and lower ends of the needle 4, and the needle 4 is rotatably arranged on the slide rod 3. Please refer to Figure 2 As shown in the figure, one end of the needle 4 penetrates the first accommodating hole 221 and the second accommodating hole 32 in sequence and is arranged in the through hole 31.

[0059] Please refer to Figure 1 As shown in the figure, the driving member 5 is used to drive the slide rod 3 to make directional reciprocating motion. It comprises a connecting rod 51, a crank 52 and a power member 53 (motor). Among them: one end of the connecting rod 51 is hinged to the slide rod 3; one end of the crank 52 is hinged to the connecting rod 51; the crank 52 is fixedly arranged on the output end of the motor.

[0060] A water cooling circulation system (not shown in the figure) is used to cool the needle recess 41 located above the needle 4. It comprises a circulating water pipe, a condenser and a water pump. Among them: the water pump provides power for the circulation of the condensing medium in the circulating water pipe, and the condenser refrigerates the condensing medium. Part of the circulating water pipe is arranged in the two first plates 22.

[0061] A rotating hook (not shown in the figure) is arranged in the cavity 12.

[0062] Please refer to Figure 5 As shown in the figure, the locking member 6 is used to lock and fix the needle 4 on the slide rod 3. It comprises a cam 61 and a disc spring 62. Among them: the cam 61 is hinged in the slide rod 3, and the cam 61 and the needle 4 share a hinged part; please refer to Figure 3 As shown in the figure, when the needle 4 is in working state, the cam 61 abuts against the inner wall of the slide rod 3; please refer to Figure 5 As shown in the figure, the disc spring 62 is arranged at the hinged part of the cam 61 and the slide rod 3.

[0063] Please refer to Figure 2 As shown in the figure, the wiping member 7 is used to wipe the water droplets on the needle 4. Please refer to Figure 4 As shown in the figure, it comprises an elastic member 71, a sliding block 72, a connecting rod 73 and a water-absorbing cotton 74. Among them: the elastic member 71 is fixedly connected with the blind hole 232; the sliding block 72 is fixedly connected with the elastic member 71, and the sliding block 72 is slidingly and sealingly arranged in the blind hole 232; the connecting rod 73 is fixedly connected with the sliding block 72; please refer to Figure 2As shown, the connecting rod 73 passes through the wiping slot 33; please refer to Figure 4 As shown, the water-absorbing cotton 74 and the connecting rod 73 are fixedly connected; please refer to Figure 2 As shown, the water-absorbing cotton 74 and the needle 4 selectively abut.

[0064] The working mode of the present application is introduced as follows:

[0065] The sewing principle of the sewing machine: the motor drives the rotation of the crank 52, the crank 52, the connecting rod 51 and the slide rod 3 form a crank 52 connecting rod 51 mechanism, so that when the motor drives the rotation of the crank 52, the slide rod 3 also makes directional reciprocating motion in the vertical direction, and the needle 4 is connected with the slide rod 3, so that the needle 4 also makes directional reciprocating motion with the slide rod 3, thereby achieving the purpose of the needle 4 quickly entering and exiting the needle on the textile, when the needle 4 moves downward to pass through the textile into the cavity 12 in the needle plate hole 11, at this time, the rotating shuttle hooks the yarn in the threading hole of the needle 4 to rotate one circle and then covers the yarn on the shuttle core, the needle 4 moves upward to drive the yarn on the shuttle core to move upward, thereby realizing the sewing of the textile. Finally, it needs to be noted that the driving member 5 selects the motor and the crank 52 connecting rod 51 mechanism, but not the air cylinder, because if the slide rod 3 is directly connected to the air cylinder, although the directional reciprocating motion of the needle 4 can be realized, due to the relatively slow movement of the air cylinder, the high-speed movement of the needle 4 cannot be realized, and the work efficiency is also reduced, and by setting the connecting rod 51, the crank 52 and the power member 53 (motor), the industrial production needs can be met. The use of the crank 52 connecting rod 51 mechanism can change the continuous rotation into directional reciprocating movement, and the high-speed rotation of the motor can also ensure the movement frequency of the needle 4, thereby realizing high-speed sewing and meeting the industrial needs.

[0066] The reason for breaking or skipping the line during sewing: in the sewing process of the sewing machine, the position of the needle recess 41 of the needle 4 has certain requirements, generally the needle recess 41 of the needle 4 is required to be located at the farthest travel position, at this time, the rotating shuttle hook is located in the middle of the needle recess 41, and the error is usually between 2-3mm, so that the normal progress of the sewing process can be ensured. If the rotating shuttle hook is close to the needle hole position of the needle recess 41, at this time, the rotating shuttle hook is easy to appear short line when picking the yarn on the needle recess 41; and if the rotating shuttle hook is close to the end of the needle recess 41, the rotating shuttle hook will not pick the yarn, thereby appearing the situation of skipping the line.

[0067] The cooling principle of the needle 4: since the needle 4 is provided with two needle defects 41 at both ends, when the needle defect 41 at one end of the needle 4 is overheated during long-term use, the needle 4 is rotated by 180°, so that the needle defect 41 at the other end of the needle 4 is in working state, and the needle defect 41 at the overheated end of the needle 4 is in standby state. The needle defect 41 in standby state is cooled by the water cooling circulation system, thereby preventing the temperature of the needle 4 from being too high and affecting the sewing of the wool fabric.

[0068] The principle of preventing broken or skipped lines during the cooling process of the needle 4: in order to prevent the needle defect 41 of the needle 4 from overheating, two needle defects 41 are provided in the application, and the needle 4 is rotatably arranged on the slide rod 3. The two needle defects 41 on the needle 4 are connected to the thread guide mechanism (not shown in the figure). If the needle 4 is rotated by 360°, the two thread guide mechanisms on the two needle defects 41 of the needle 4 will interfere with each other, thereby affecting the normal sewing. In order to solve this technical problem, the cam 61 is provided, so that when the needle 4 is in the vertical direction, the cam 61 and the inner wall of the slide rod 3 abut each other, thereby achieving a limiting effect, preventing the needle 4 from rotating by 360°, and preventing the thread guide mechanisms from interfering with each other. In the application, since the cam 61 is provided, the rotation direction of the needle 4 is clockwise by 180°, and then counterclockwise by 180° to reset, and the needle 4 cannot rotate by 360°. That is, the needle 4 can only switch the needle defect 41 in the forward direction and reset in the reverse direction. Further, although the cam 61 can limit the needle 4 to prevent the thread guide mechanisms from interfering with each other, when the needle 4 moves downward and passes through the textile, or when the needle 4 is hooked by the thread of the rotating shuttle, the needle 4 will tend to rotate, thereby causing the relative position between the needle 4 and the rotating shuttle to be misaligned, and thus causing the rotating shuttle to skip or break the thread. In order to solve this technical problem, the disc spring 62 is provided, thereby increasing the damping force between the cam 61 and the slide rod 3, and preventing the needle 4 from rotating under the action of the rotating shuttle.

[0069] Prevent the principle of water droplets on the needle 4: when the needle 4 needle defect 41 switching, the temperature of the upper needle defect 41 is too high, and the needle defect 41 under the action of water cooling cycle, the water vapor in the air around it is easy to liquefy and attach to the needle 4 water droplets, water droplets will flow along the needle 4 and flow to the needle 4 below the working needle defect 41, when the needle hole in the needle defect 41 of the needle hole place wool under the action of water droplets and then will occur sticky, when the needle defect 41 in the downward movement, the rotating hook can not hook the needle defect 41 on the wool, and then affect the normal sewing, and by setting the wiping member 7 can effectively solve this problem, when the needle 4 in the up and down movement, because the wiping member 7 is fixed on the arc plate 23, therefore, at this time, the wiping member 7 and the needle 4 will occur relative movement, the needle 4 in the process of up and down movement, the water droplets on the needle 4 will be wiped by the wiping member 7, so as to prevent the water droplets on the needle 4 flow into the working needle defect 41 of the needle 4.

[0070] The start and stop principle of the wiping member 7: when the needle defect 41 of the needle 4 is completed switching, at this time, by the air inlet hole 233 ventilation, so as to make the air pressure in the blind hole 232 increase, and then push the sliding block 72 to move, that is, at this time, the plurality of water absorbing cotton 74 to the needle 4 direction close to, the needle 4 in the process of up and down movement, the needle 4 is constantly wiped by the water absorbing cotton 74, so as to effectively prevent the water droplets on the needle 4 flow into the working needle defect 41 of the needle 4; when the needle defect 41 of the needle 4 needs to be switched again, only need to open the air outlet hole 234, the sliding block 72 under the action of the elastic member 71 towards the direction away from the needle 4 movement, finally, in the manual rotation of the needle 4.

[0071] Finally, it should be noted that: in the use of water absorbing cotton 74 wiping the needle 4, if the needle tip of the needle 4 is located in the water absorbing cotton 74, at this time, the needle tip will attach part of the water absorbing cotton 74, when the standby needle defect 41 of the needle 4 switches to the working state, this part of the water absorbing cotton 74 under the action of rotation, will be sewn to the wool fabric, so as to greatly affect the beauty of the wool fabric, and by setting the water absorbing cotton 74 between the two needle defects 41 of the needle 4, so as to play the water absorbing cotton 74 in the wiping process only wipe the needle stem of the needle 4, and not wipe the needle defect 41 of the needle 4, so as to prevent the needle defect 41 of the needle defect 41 from attaching the water absorbing cotton 74, and at this time, because the water absorbing cotton 74 can't wipe the standby needle defect 41 of the needle 4, at this time, the needle defect 41 will appear water droplets, when switching again, that is, the standby needle defect 41 is in the working state, only need to manually wipe off the water droplets at this place, can open the sewing machine to continue to use.

[0072] The above are the preferred embodiments of the present application, not limited by the protection scope of the present application, therefore: all equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A stuffed toy sewing tool characterized by comprising: The utility model relates to a needle plate type embroidery machine, including: Workbench (1), the needle plate hole (11) is opened in workbench (1), and the cavity (12) that is opened with needle plate hole (11) intercommunication is also opened in workbench (1); Guide piece (2) is fixedly arranged on workbench (1), and the guide hole (231) is opened, and the first let -hole (221) is also opened in guide piece (2); Slip bar (3) is opened in the through -hole (31) of the axis direction on slip bar (3), and the second let -hole (32) is opened in the outer surface of slip bar (3) along its axis direction, the first let -hole (221) and the second let -hole (32) intercommunication, the second let -hole (32) and the through -hole (31) intercommunication, and slip bar (3) is slidably arranged in guide hole (231); Machine needle (4) is opened needle lack (41) in both ends respectively, and machine needle (4) is rotatably arranged on slip bar (3), and one end of machine needle (4) passes through first let -hole (221) and second let -hole (32) in proper order and is arranged in through -hole (31); Driving element (5) is used to drive slip bar (3) to do directional reciprocating motion; Water -cooling circulation system is arranged in guide piece (2); The needle lack (41) has working state and standby state, and the needle lack (41) can be cooled by water -cooling circulation system in standby state, and the needle lack (41) of one end of machine needle (4) is in working state, and the needle lack (41) of the other end of machine needle (4) is in standby state, when the needle lack (41) of one end of machine needle (4) is in working state, the needle lack (41) in working state can be changed to standby state by rotating machine needle (4) 180 DEG, and the needle lack (41) in standby state is changed to working state; Rotary hook is arranged in cavity (12).

2. The stuffed toy sewing tool according to claim 1, wherein The guide piece (2) includes: Supporting rod (21) is fixedly arranged on workbench (1); First plate (22) is fixedly connected with supporting rod (21), and one first let -hole (221) is opened in the end of first plate (22); Two arc plates (23) are fixedly arranged on the end of first plate (22) close to first let -hole (221), and the guide hole (231) is formed between two arc plates (23), and another first let -hole (221) is formed between two arc plates (23).

3. A tool for sewing a plush toy according to claim 1 or 2, wherein The driving element (5) includes: Connecting rod (51) is hingedly connected to the one end of slip bar (3); Crank (52) is hingedly connected to the one end of connecting rod (51); Power element (53) is used to drive the rotation of crank (52).

4. The stuffed toy sewing tool according to claim 1, wherein: It further includes locking element (6), which is used to lock and fix machine needle (4) on slip bar (3).

5. A tool for sewing a plush toy according to claim 4, wherein The locking member (6) comprises a cam (61) which is hinged in the slide rod (3), and the cam (61) and the needle (4) share a hinge; when the needle (4) is in working state, the cam (61) and the inner wall of the slide rod (3) abut.

6. A tool for sewing a plush toy according to claim 5, wherein The locking member (6) further comprises a disc spring (62) which is arranged at the hinge between the cam (61) and the slide rod (3).

7. The stuffed toy sewing tool according to claim 2, wherein: Further comprising at least three wiping members (7) which are fixedly arranged on the arc-shaped plate (23), one end of the needle (4) is arranged in the wiping member (7), and one end of the needle (4) selectively abuts against the wiping member (7).

8. A tool for sewing a plush toy according to claim 7, wherein The arc-shaped plate (23) is provided with a plurality of blind holes (232), and the arc-shaped plate (23) is further provided with an air inlet hole (233) and an air outlet hole (234) which are in communication with the blind holes (232), and the slide rod (3) is further provided with a wiping notch (33), and the wiping member (7) comprises: an elastic member (71) which is fixedly connected with the blind hole (232); a sliding block (72) which is fixedly connected with the elastic member (71) and is slidingly and sealingly arranged in the blind hole (232); a connecting rod (73) which is fixedly connected with the sliding block (72) and passes through the wiping notch (33); a water-absorbing cotton (74) which is fixedly connected with the connecting rod (73) and selectively abuts against the needle (4).

9. A tool for stitching a plush toy according to claim 8, wherein: The water-absorbing cotton (74) is located between the two needle recesses (41) of the needle (4).

Citation Information

Patent Citations

  • Sewing machine with cooling function

    CN113684621A

  • Sewing machine needle cooling structure and sewing machine

    CN109402890A

  • Sewing machine needle cooling mechanism and sewing machine

    CN203715900U