Improved transfer needle

Abstract

The utility model provides an improved transfer needle, and belongs to the technical field of knitting machinery. The needle comprises a horizontal needle body and a hook tongue arranged at the front end of the horizontal needle body, a radial force application part is further arranged on the horizontal needle body, the position, close to the hook tongue, of the horizontal needle body is connected with a substrate through a first lengthened flexible hinge, an L-shaped swing rod is arranged at the end, away from the hook tongue, of the horizontal needle body, and a swing shaft hole is formed in the L-shaped swing rod. The horizontal needle body is provided with a first protrusion capable of abutting against one side of a lower rod of the L-shaped swing rod, and the other side of the lower rod of the L-shaped swing rod is connected with the horizontal needle body through a second lengthened flexible hinge. The length of the first lengthened flexible hinge and the length of the second lengthened flexible hinge are greatly lengthened compared with the length of a previous flexible hinge, the fatigue toughness can be effectively improved, and the precision and stability of radial movement of the horizontal needle body are improved. The stress between the lower rod of the L-shaped swing rod and the first protrusion is increased, and the driving effect of the L-shaped swing rod is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of knitting machinery and relates to an improved transfer needle. Background Art

[0002] When producing socks, generally, semi-finished socks are first produced in the needle cylinder of the sock machine, at which time the toes of the socks are not sewn, and then the semi-finished socks are taken out of the needle cylinder by a transfer device and transferred to the toe sewing disk, and then the toes of the socks are sewn by the toe sewing machine. The transfer device includes a transfer needle arranged on the transfer disk body. The transfer needle cooperates with the vertical knitting needle of the sock machine to perform the sock thread transfer operation during the radial movement process.

[0003] The transfer needle usually includes a horizontal needle body and a swing rod connected to a transfer disc body. The existing horizontal needle body and the transfer disc body are mostly connected by a short flexible hinge and a connecting rod; the horizontal needle body and the swing rod are connected by a short flexible hinge. However, due to the short length of the short flexible hinge, its fatigue toughness is poor. After long-term use, it is easy to deform and fatigue, resulting in performance degradation and even breakage. Therefore, the transfer needle needs to be replaced frequently, affecting production efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide an improved transfer needle in view of the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An improved transfer needle comprises a horizontal needle body and a hook tongue arranged at the front end of the horizontal needle body, a radial force applying portion is also provided on the horizontal needle body, the horizontal needle body is connected to a substrate through a first extended flexible hinge near the hook tongue, an L-shaped rocker arm is provided on the end of the horizontal needle body away from the hook tongue, a rocking shaft hole is provided on the L-shaped rocker arm, a first protrusion is provided on the horizontal needle body that can abut against one side of the lower rod of the L-shaped rocker arm, and the other side of the lower rod of the L-shaped rocker arm is connected to the horizontal needle body through a second extended flexible hinge.

[0007] The first extended flexible hinge and the second extended flexible hinge play the role of flexible support. The length of the first extended flexible hinge and the second extended flexible hinge are greatly extended compared with the length of the previous flexible hinge, which can effectively improve the fatigue toughness and enhance the accuracy and stability of the radial movement of the horizontal needle body.

[0008] In the above-mentioned improved transfer needle, the first extended flexible hinge includes a first extended spring leaf which is in a strip shape and the upper and lower ends are respectively connected to the base sheet and the horizontal needle body; the upper end of the first extended spring leaf is connected to the base sheet through a first upper flexible hinge portion and connected as a whole, and / or the lower end of the first extended spring leaf is connected to the horizontal needle body through a first lower flexible hinge portion and connected as a whole.

[0009] The upper and lower ends of the first extended spring are respectively connected to the base plate and the horizontal needle body, and the first extended spring plays a flexible supporting role; the first upper flexible hinge part and / or the first lower flexible hinge part are connected and extended by the first extended spring so that when subjected to external force, the force can be distributed to various parts of the first extended spring, making the force distribution more extensive. Due to this wide force distribution, the first extended flexible hinge is more likely to produce overall bending deformation when subjected to the same external force, thereby improving fatigue toughness.

[0010] In the above-mentioned improved transfer needle, the first upper flexible hinge portion is arranged in the first clearance groove of the substrate; and the first lower flexible hinge portion is arranged in the second clearance groove of the horizontal needle body.

[0011] The first give way slot and the second give way slot play a giving way role.

[0012] In the above-mentioned improved transfer needle, first arc-shaped reinforcement parts are provided between the two sides of the first upper flexible hinge part and the first clearance groove; second arc-shaped reinforcement parts are provided between the two sides of the first lower flexible hinge part and the horizontal needle body.

[0013] The first arc-shaped reinforcement portion and the second arc-shaped reinforcement portion play a role of reinforcing the structure.

[0014] In the above-mentioned improved transfer needle, a strip step is provided on the other side of the lower rod, the upper end of the second extended flexible hinge is connected to the strip step and integrated into one, the lower end of the second extended flexible hinge is connected to the horizontal needle body and integrated into one, and a movable gap is provided between the second extended flexible hinge and the lower rod.

[0015] The active gap provides clearance during the downswing.

[0016] In the above-mentioned improved transfer needle, the second extended flexible hinge includes a second extended spring leaf, the upper end of the second extended spring leaf is connected to the strip step through a second upper flexible hinge portion and is connected as a whole, and the lower end of the second extended spring leaf is connected to the horizontal needle body through a second lower flexible hinge portion and is connected as a whole.

[0017] The upper and lower ends of the second extended spring are respectively connected to the strip step and the horizontal needle body, and the second extended spring plays a flexible supporting role; the second upper flexible hinge part and the second lower flexible hinge part are connected through the first extended spring so that when subjected to external force, the force can be distributed to various parts of the first extended spring, making the force distribution more extensive. Due to this wide force distribution, the second extended flexible hinge is more likely to produce overall bending deformation when subjected to the same external force, thereby improving fatigue toughness.

[0018] In the above-mentioned improved transfer needle, a third clearance groove is provided between the first protrusion and the horizontal needle body, and the lower end of the second lower flexible hinge part and the lower rod are both arranged in the third clearance groove.

[0019] The third giving way groove plays a giving way role when the second extended flexible hinge and the lower rod swing.

[0020] In the above-mentioned improved transfer needle, third arc-shaped reinforcement parts are provided between both sides of the second upper flexible hinge part and the strip-shaped step; fourth arc-shaped reinforcement parts are provided between both sides of the second lower flexible hinge part and the third clearance groove.

[0021] The third arc-shaped reinforcement portion and the fourth arc-shaped reinforcement portion play a role in reinforcing the structure.

[0022] In the above-mentioned improved transfer needle, the swing shaft hole is C-shaped and is located between the upper rod and the lower rod of the L-shaped rocker arm. A deformation groove is provided on the inner side of the swing shaft hole. One end of the deformation groove is connected to the swing shaft hole, and the other end is connected to the deformation hole. A resettable deformation protrusion is provided above the swing shaft hole. The deformation protrusion is connected to the L-shaped rocker arm as a whole, and a lifting and lowering yielding inclined surface is provided between the deformation protrusion and the upper part of the upper rod; one side of the lower rod gradually tilts outward from bottom to top, and a fourth yielding groove is provided on the lower end part of this side of the lower rod.

[0023] The C-shape of the swing shaft hole can reduce the contact area, which is used to reduce the friction force on the swing shaft hole when it rotates. The deformation groove and the deformation hole connected to the inner side of the swing shaft hole can be deformed to avoid excessive stress on the swing shaft hole. The deformation protrusion above the swing shaft hole can be deformed and reset to facilitate the hinged assembly between the swing shaft hole and the transfer plate body. The lifting and lowering inclined surface facilitates the swing of the L-shaped swing arm and can reduce the axial space of the transfer plate, making the transfer plate more compact.

[0024] In the above-mentioned improved transfer needle, the radial force-applying portion includes a force-applying groove, and the force-applying groove is arranged on the horizontal needle body between the first elongated flexible hinge and the second elongated flexible hinge, or is arranged on the rear end of the horizontal needle body.

[0025] A hoop spring capable of causing the horizontal needle body to move radially inward is arranged in the force-applying groove, and the hoop spring can apply a force radially inward along the transfer disk to the horizontal needle body.

[0026] Compared with the existing technology, the advantages of the utility model are: the length of the first extended flexible hinge and the second extended flexible hinge is significantly longer than that of the previous flexible hinge, which can effectively improve fatigue toughness and improve the accuracy and stability of the radial movement of the horizontal needle body. 2. The force between the lower rod of the L-shaped swing rod and the first protrusion is increased, and the driving effect of the L-shaped swing rod is improved. 3. The friction and stress of the swing shaft hole when rotating are smaller. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure provided by the utility model;

[0028] Figure 2 It is a front view provided by the utility model;

[0029] Figure 3 It is a usage status diagram provided by the utility model;

[0030] Figure 4 It is a top view provided by the utility model.

[0031] In the figure, a horizontal needle body 1, a hook tongue 2, a radial force-applying portion 3, a first extended flexible hinge 4, a base plate 5, an L-shaped rocker arm 6, a swing shaft hole 7, a lower rod 8, a first protrusion 9, a second extended flexible hinge 10, a positioning hook body 11, a first make way groove 12, a second make way groove 13, a strip step 14, an active gap 15, a third make way groove 16, a fourth arc-shaped reinforcement portion 17, a fourth make way groove 18, an upper rod 19, a deformation groove 20, a deformation hole 21, a deformation protrusion 22, a lifting and lowering make way inclined surface 23, a force-applying groove 24, a hoop 26, a first extended spring leaf 41, a first upper flexible hinge portion 42, a first lower flexible hinge portion 43, a second extended spring leaf 101, a second upper flexible hinge portion 102, a second lower flexible hinge portion 103, a third arc-shaped reinforcement portion 101a, a first arc-shaped reinforcement portion 421, and a second arc-shaped reinforcement portion 422. DETAILED DESCRIPTION

[0032] like Figure 1-Figure 3 As shown, the improved transfer needle comprises a horizontal needle body 1 and a hook tongue 2 arranged at the front end of the horizontal needle body 1, a radial force applying portion 3 is also provided on the horizontal needle body 1, the horizontal needle body 1 is connected to the base plate 5 through a first extended flexible hinge 4 near the hook tongue 2, an L-shaped rocker arm 6 is provided on the end of the horizontal needle body 1 away from the hook tongue 2, a rocking shaft hole 7 is provided on the L-shaped rocker arm 6, a first protrusion 9 is provided on the horizontal needle body 1 that can abut against one side of the lower rod 8 of the L-shaped rocker arm 6, and the other side of the lower rod 8 of the L-shaped rocker arm 6 is connected to the horizontal needle body 1 through a second extended flexible hinge 10.

[0033] The improved transfer needle is made of metal material, and the metal material includes any one of stainless steel, copper, titanium and the like.

[0034] In the utility model, the L-shaped rocker arm 6 is hingedly connected to the transfer disc body through a hinged connecting piece arranged in the swing shaft hole 7. The horizontal needle body 1 can be applied with a radially inward force through the radial force-applying portion 3, so that the horizontal needle body 1 moves radially inward. Since the first protrusion 9 on the horizontal needle body 1 abuts against the side of the lower rod 8 of the L-shaped rocker arm 6, when the horizontal needle body 1 moves radially inward, the L-shaped rocker arm 6 can be driven to rotate downward around the swing shaft hole 7. The upward rotation of the L-shaped rocker arm 6 can drive the horizontal needle body 1 to reset. During the radial movement of the horizontal needle body 1, the hook tongue 2 at the front end cooperates with the vertical knitting needle of the sock machine to perform the sock thread transfer operation.

[0035] The front end of the horizontal needle body 1 is connected to the base plate 5 through the first elongated flexible hinge 4, and the rear end is connected to the lower rod 8 of the L-shaped swing rod 6 through the second elongated flexible hinge 10. The first elongated flexible hinge 4 and the second elongated flexible hinge 10 are parallel to each other. The first elongated flexible hinge 4 and the second elongated flexible hinge 10 play the role of flexible support. The length of the first elongated flexible hinge 4 and the second elongated flexible hinge 10 is greatly lengthened compared with the length of the previous flexible hinge, which can effectively improve the fatigue toughness and improve the accuracy and stability of the radial movement of the horizontal needle body 1.

[0036] Specifically, combined with Figure 1-Figure 3 As shown, a positioning hook 11 is provided on the top of the substrate 5 .

[0037] The positioning hook body 11 is located on the inner end of the top of the substrate 5 .

[0038] The positioning hook body 11 on the top of the substrate 5 is used to cooperate with the transfer plate body to facilitate the installation of the substrate 5. The substrate 5 is firmly fixed and easy to disassemble and assemble.

[0039] Specifically, combined with Figure 1-Figure 3 As shown, the first elongated flexible hinge 4 includes a first elongated spring 41 in a strip shape, and the upper and lower ends are respectively connected to the base sheet 5 and the horizontal needle body 1; the upper end of the first elongated spring 41 is connected to the base sheet 5 through the first upper flexible hinge 42 and connected as a whole, and / or, the lower end of the first elongated spring 41 is connected to the horizontal needle body 1 through the first lower flexible hinge 43 and connected as a whole. After the first upper flexible hinge 42 and the first lower flexible hinge 43 are connected through the first elongated spring 41, when they are subjected to external force, the force can be distributed to various parts of the first elongated spring 41, so that the force distribution is more extensive. Due to this extensive force distribution, the first elongated flexible hinge 4 is more likely to produce overall bending deformation when subjected to the same external force, thereby improving fatigue toughness.

[0040] In this embodiment, the first elongated flexible hinge 4 includes a first elongated spring 41 which is in a strip shape and whose upper and lower ends are respectively connected to the base sheet 5 and the horizontal needle body 1; the upper end of the first elongated spring 41 is connected to the base sheet 5 through a first upper flexible hinge portion 42 and connected as a whole, and the lower end of the first elongated spring 41 is connected to the horizontal needle body 1 through a first lower flexible hinge portion 43 and connected as a whole, and the first upper flexible hinge portion 42 is arranged in the first clearance groove 12 of the base sheet 5; the first lower flexible hinge portion 43 is arranged in the second clearance groove 13 of the horizontal needle body 1;

[0041] First arc-shaped reinforcement parts 421 are disposed between both sides of the first upper flexible hinge part 42 and the first clearance groove 12 ; second arc-shaped reinforcement parts 422 are disposed between both sides of the first lower flexible hinge part 43 and the horizontal needle body 1 .

[0042] The first upper flexible hinge part 42 includes a short spring leaf, and the first arc-shaped reinforcement parts 421 are provided on both sides of the upper end of the short spring leaf; the second lower flexible hinge part 43 includes a short spring leaf, and the second arc-shaped reinforcement parts 422 are provided on both sides of the lower end of the short spring leaf 41.

[0043] The first and second make way grooves 12 and 13 play a role of making way during the swinging process of the first lengthened spring leaf 41 ; the first arc-shaped reinforcement portion 421 and the second arc-shaped reinforcement portion 422 play a role of reinforcing the structure.

[0044] Specifically, combined with Figure 1-Figure 3 As shown, a strip step 14 is provided on the other side of the lower rod 8, the upper end of the second extended flexible hinge 10 is connected to the strip step 14 and connected as a whole, the lower end of the second extended flexible hinge 10 is connected to the horizontal needle body 1 and connected as a whole, and a movable gap 15 is provided between the second extended flexible hinge 10 and the lower rod 8.

[0045] The upper end of the second extended flexible hinge 10 is connected to the strip step 14 on the other side of the lower rod 8, and the lower end is connected to the horizontal needle body 1. The second extended flexible hinge 10 plays the role of flexible support, and the movable gap 15 between the second extended flexible hinge 10 and the lower rod 8 plays a role of giving way when the lower rod 8 swings.

[0046] The second elongated flexible hinge 10 includes a second elongated spring 101, the upper end of which is connected to the strip step 14 through a second upper flexible hinge 102 and is connected as a whole, and the lower end of which is connected to the horizontal needle body 1 through a second lower flexible hinge 103 and is connected as a whole. The second upper flexible hinge 102 and the second lower flexible hinge 103 are connected through the first elongated spring 41 so that when an external force is applied, the force can be distributed to various parts of the first elongated spring 41, so that the force distribution is more extensive. Due to this extensive force distribution, the second elongated flexible hinge 10 is more likely to produce overall bending deformation when subjected to the same external force, thereby improving fatigue toughness.

[0047] A third paving groove 16 is provided between the first protrusion 9 and the horizontal needle body 1 , and the lower ends of the second lower flexible hinge portion 103 and the lower rod 8 are both arranged in the third paving groove 16 .

[0048] A third arc-shaped reinforcement portion 101 a is disposed between both sides of the second upper flexible hinge portion 102 and the strip-shaped step 14 ; a fourth arc-shaped reinforcement portion 17 is disposed between both sides of the second lower flexible hinge portion 103 and the third clearance groove 16 .

[0049] The second upper flexible hinge 102 includes a short spring with the third arc-shaped reinforcement 101a disposed on both sides of the upper end of the short spring. The second lower flexible hinge 103 includes a short spring with the fourth arc-shaped reinforcement 17 disposed on both sides of the lower end of the short spring.

[0050] The third clearance groove 16 between the first protrusion 9 and the horizontal needle body 1 plays a role of making way when the second extended flexible hinge 10 and the lower rod 8 swing, and the third arc-shaped reinforcement part 101a and the fourth arc-shaped reinforcement part 17 play a role of reinforcing the structure.

[0051] Specifically, combined with Figure 1-Figure 3 As shown, the swing shaft hole 7 is C-shaped and is located between the upper rod 19 and the lower rod 8 of the L-shaped swing rod 6. A deformation groove 20 is provided on the inner side of the swing shaft hole 7. One end of the deformation groove 20 is connected to the swing shaft hole 7, and the other end is connected to the deformation hole 21. A resettable deformation protrusion 22 is provided above the swing shaft hole 7. The deformation protrusion 22 is connected to the L-shaped swing rod 6 as a whole, and a lifting and lowering inclined surface 23 is provided between the deformation protrusion 22 and the upper part of the upper rod 19; one side of the lower rod 8 gradually tilts outward from bottom to top, and a fourth yielding groove 18 is provided on the lower end of this side of the lower rod 8.

[0052] The C-shape of the swing shaft hole 7 can reduce the contact area, which is used to reduce the friction force on the swing shaft hole 7 when it rotates. The deformation groove 20 and the deformation hole 21 connected to the inner side of the swing shaft hole 7 can be deformed to avoid excessive stress on the swing shaft hole 7. The deformation protrusion 22 above the swing shaft hole 7 can be deformed and reset to facilitate the hinged assembly between the swing shaft hole 7 and the transfer plate body. The lifting and lowering relief slope 23 between the deformation protrusion 22 and the upper part of the upper rod 19 plays a relief role when the swing shaft hole 7 is assembled, which is convenient for the assembly of the swing shaft hole 7. The lower rod 8 is tilted, and the fourth relief groove 18 on the lower rod 8 can reduce the contact area between the lower rod 8 and the first protrusion 9, thereby increasing the force between the lower end of the lower rod 8 and the first protrusion 9.

[0053] Specifically, combined with Figure 1-Figure 3 As shown, the radial force applying portion 3 includes a force applying groove 24 , and the force applying groove 24 is arranged on the horizontal needle body 1 between the first elongated flexible hinge 4 and the second elongated flexible hinge 10 , or is arranged on the rear end of the horizontal needle body 1 .

[0054] A hoop spring capable of causing the horizontal needle body 1 to move radially inward is disposed in the force-applying groove 24 , and the hoop spring can apply a radially inward force to the horizontal needle body 1 .

[0055] The lengths of the first extended flexible hinge 4 and the second extended flexible hinge 10 are greatly extended compared with before, which can effectively improve fatigue toughness.

[0056] Specifically, combined with Figure 4 As shown, the widths of the base sheet 5 , the first elongated flexible hinge 4 , the L-shaped rocker 6 , and the second elongated flexible hinge 10 are not greater than the thickness of the horizontal needle body 1 .

[0057] Specifically, combined with Figure 3 As shown, the base plate 5 and the positioning hook body 11 at the upper end of the flexible support rod 25 are matched and connected with the positioning slot 423 of the transfer plate body, and the outer side of the positioning hook body 11 is fixed by a clamp 26.

[0058] During the radial movement of the horizontal needle body 1, the lower end of the flexible support rod 25 swings, and the upper end of the flexible support rod 25 located below the substrate 21 also swings to limit the running direction of the horizontal needle body.

[0059] The working principle of the utility model is as follows: the base sheet 5 is connected with the positioning slot 423 of the needle ring through the positioning hook body 11, the L-shaped swing rod 6 is hinged on the transfer disc body through the swing shaft hole 7, the horizontal needle body 1 can be exerted with radial inward force through the radial force-applying part 3, the radial inward movement of the horizontal needle body 1 can drive the L-shaped swing rod 6 to rotate downward around the swing shaft hole 7, and the upward rotation of the L-shaped swing rod 6 can drive the horizontal needle body 1 to reset, and during the radial movement of the horizontal needle body 1, the hook tongue 2 at the front end cooperates with the vertical knitting needle of the sock machine to perform the sock thread transfer operation;

[0060] The front end of the horizontal needle body 1 is connected to the base plate 5 through the first extended flexible hinge 4, and the rear end is connected to the lower rod 8 of the L-shaped rocker arm 6 through the second extended flexible hinge 10. The first extended flexible hinge 4 and the second extended flexible hinge 10 play the role of flexible support, and the length of the hinge has been greatly extended compared with before.

[0061] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0062] Although this article uses more horizontal needle body 1, hook tongue 2, radial force application part 3, first extended flexible hinge 4, substrate 5, L-shaped rocker 6, swing shaft hole 7, lower rod 8, first protrusion 9, second extended flexible hinge 10, positioning hook body 11, first make way groove 12, second make way groove 13, strip step 14, movable gap 15, third make way groove 16, fourth arc-shaped reinforcement part 17, fourth make way groove 18, upper rod 19, deformation groove 20, deformation hole 21, deformation convex block 22, lifting make way inclined surface 23, force application groove 2 4. The hoop 26, the first extended spring leaf 41, the first upper flexible hinge portion 42, the first lower flexible hinge portion 43, the second extended spring leaf 101, the second upper flexible hinge portion 102, the second lower flexible hinge portion 103, the third arc-shaped reinforcement portion 101a, the first arc-shaped reinforcement portion 421, the second arc-shaped reinforcement portion 422, the positioning slot 423, etc., these terms are used only to more conveniently describe and explain the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An improved transfer needle, comprising a horizontal needle body (1) and a hook tongue (2) arranged at the front end of the horizontal needle body (1), and a radial force applying portion (3) is also provided on the horizontal needle body (1), characterized in that: The horizontal needle body (1) is connected to the base plate (5) via a first extended flexible hinge (4) near the hook tongue (2); an L-shaped swing rod (6) is provided on the end of the horizontal needle body (1) away from the hook tongue (2); a swing shaft hole (7) is provided on the L-shaped swing rod (6); a first protrusion (9) capable of abutting against one side of a lower rod (8) of the L-shaped swing rod (6) is provided on the horizontal needle body (1); and the other side of the lower rod (8) of the L-shaped swing rod (6) is connected to the horizontal needle body (1) via a second extended flexible hinge (10).

2. The improved transfer needle according to claim 1, characterized in that: The first extended flexible hinge (4) comprises a first extended spring leaf (41) in a strip shape, the upper and lower ends of which are respectively connected to the base plate (5) and the horizontal needle body (1); the upper end of the first extended spring leaf (41) is connected to the base plate (5) via a first upper flexible hinge portion (42) and connected as a whole, and / or the lower end of the first extended spring leaf (41) is connected to the horizontal needle body (1) via a first lower flexible hinge portion (43) and connected as a whole.

3. The improved transfer needle according to claim 2, characterized in that: The first upper flexible hinge portion (42) is arranged in the first clearance groove (12) of the base plate (5); and the first lower flexible hinge portion (43) is arranged in the second clearance groove (13) of the horizontal needle body (1).

4. The improved transfer needle according to claim 3, characterized in that: First arc-shaped reinforcement parts (421) are provided between the two sides of the first upper flexible hinge part (42) and the first clearance groove (12); second arc-shaped reinforcement parts (422) are provided between the two sides of the first lower flexible hinge part (43) and the horizontal needle body (1).

5. The improved transfer needle according to claim 1, 2, 3 or 4, characterized in that: A strip step (14) is provided on the other side of the lower rod (8); the upper end of the second extended flexible hinge (10) is connected to the strip step (14) and is integrally connected; the lower end of the second extended flexible hinge (10) is connected to the horizontal needle body (1) and is integrally connected; and a movable gap (15) is provided between the second extended flexible hinge (10) and the lower rod (8).

6. The improved transfer needle according to claim 5, characterized in that: The second extended flexible hinge (10) comprises a second extended spring leaf (101), the upper end of the second extended spring leaf (101) being connected to the strip-shaped step (14) via a second upper flexible hinge portion (102) and being connected as a whole, and the lower end of the second extended spring leaf (101) being connected to the horizontal needle body (1) via a second lower flexible hinge portion (103) and being connected as a whole.

7. The improved transfer needle according to claim 6, characterized in that: A third clearance groove (16) is provided between the first protrusion (9) and the horizontal needle body (1), and the lower ends of the second lower flexible hinged portion (103) and the lower rod (8) are both arranged in the third clearance groove (16).

8. The improved transfer needle according to claim 7, characterized in that: A third arc-shaped reinforcement portion (101a) is provided between both sides of the second upper flexible hinge portion (102) and the strip-shaped step (14); and a fourth arc-shaped reinforcement portion (17) is provided between both sides of the second lower flexible hinge portion (103) and the third clearance groove (16).

9. The improved transfer needle according to claim 1, 2, 3 or 4, characterized in that: The swing shaft hole (7) is C-shaped and is located between the upper rod (19) and the lower rod (8) of the L-shaped swing rod (6). A deformation groove (20) is provided on the inner side of the swing shaft hole (7). One end of the deformation groove (20) is connected to the swing shaft hole (7) and the other end is connected to the deformation hole (21). A resettable deformation protrusion (22) is provided above the swing shaft hole (7). The deformation protrusion (22) is connected to the L-shaped swing rod (6) as a whole. A lifting and lowering inclined surface (23) is provided between the deformation protrusion (22) and the upper part of the upper rod (19); one side of the lower rod (8) gradually tilts outward from bottom to top, and a fourth yielding groove (18) is provided on the lower end of the lower rod (8) on this side.

10. The improved transfer needle according to claim 1 or 2 or 3 or 4, characterized in that: The radial force-applying portion (3) comprises a force-applying groove (24), and the force-applying groove (24) is arranged on the horizontal needle body (1) between the first elongated flexible hinge (4) and the second elongated flexible hinge (10), or is arranged on the rear end of the horizontal needle body (1).

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