Eagle beak type scissors and cylindrical knitted fabric port sewing thread cutting device

Abstract

The invention provides eagle beak type scissors and a cylindrical knitted fabric end opening sewing thread cutting-off device, relates to the technical field of scissors, and solves the technical problems that the mode that two blades move oppositely to conduct closed shearing is prone to interference with other external structures, and use and operation are inconvenient. The eagle beak type scissors comprise a base, an advancing and retreating sliding block, a straight knife and an eagle beak knife, the advancing and retreating sliding block is slidably connected with the base, one end of the advancing and retreating sliding block is a driving end, and the straight knife is fixed to the other end of the advancing and retreating sliding block; the olecranon knife is rotationally connected with the advancing and retreating sliding block through the shaft piece, when the driving end is pushed by the driving mechanism or manually, the advancing and retreating sliding block linearly slides relative to the base, and the olecranon knife can rotate with the shaft piece as the axis under pulling of the advancing and retreating sliding block so as to be closed with the straight knife to bite off a target object. The olecranon type scissors are high in cutting capacity, the straight knife moves linearly, the olecranon knife rotates, interference with an external structure is reduced, and operation is easy and convenient.

Description

Technical Field

[0001] The invention relates to the technical field of scissors, in particular to a pair of hawk-beak type scissors and a cylindrical knitted fabric port suture sewing thread cutting device. Background Art

[0002] The end stitching of cylindrical knitted fabrics (such as socks) is completed by a small curved needle, a large curved needle and a steel needle. Among them, the small curved needle passes through the string of the large curved needle and then passes through the loop of the knitted fabric, and then the large curved needle passes through the string of the small curved needle. The large and small curved needles work in a cycle around the needle and form sewing stitches. In order to cut off the remaining sewing thread on the steel needle of each cylindrical knitted product and keep the sewing thread on the steel needle from falling off, it is necessary to cut it with sewing thread scissors.

[0003] In the prior art scissors, two blades move toward each other to clamp the thread and cut it, and the sewing thread on the steel needle is easily dropped when the two blades are pushed forward.

[0004] The applicant has found that the prior art has at least the following technical problems: It can be seen that the method of closing and shearing by moving two blades toward each other is easy to interfere with other external structures, which is inconvenient to use and operate. Summary of the invention

[0005] The purpose of the present invention is to provide an eagle-beak scissors and a cylindrical knitted fabric port suture sewing thread cutting device to solve the technical problem that the two blades move toward each other to close and cut in the prior art, which is easy to interfere with other external structures and inconvenient to use and operate. The preferred technical solutions among the many technical solutions provided by the present invention can produce many technical effects as described below.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] The hawk-beak scissors provided by the present invention include a base, an advance and retreat slider, a straight knife, and a hawk-beak knife, wherein:

[0008] The advance and retreat slider is slidably connected to the base, one end of the advance and retreat slider is a driving end, and the straight knife is fixed to the other end of the advance and retreat slider;

[0009] The hawkbill knife is rotatably connected to the advance and retreat slider via a shaft. When the driving mechanism or manual force is applied to the driving end, the advance and retreat slider slides linearly relative to the base. The hawkbill knife can rotate around the shaft as the axis under the pull of the advance and retreat slider, thereby closing with the straight knife to bite off the target object.

[0010] Preferably, the straight knife has a first inclined blade, the blade of the hawkbill knife is hawkbill-shaped, and it has a second inclined blade. When the hawkbill knife and the straight knife are closed, the second inclined blade cooperates with the first inclined blade to cut off the target object.

[0011] Preferably, a pull rod is provided on the base, and a limiting groove is provided on the hawk-bill knife, wherein:

[0012] The limiting groove comprises a first limiting wall and a second limiting wall which are arranged opposite to each other, and the pull rod extends into the limiting groove;

[0013] In the initial state, the pull rod abuts against the first limiting wall; when the advance and retreat slider slides, the pull rod can pull the second limiting wall, so that the hawk-beak knife rotates to a state of being closed with the straight knife.

[0014] Preferably, the pull rod includes a horizontal section and a vertical section which are fixedly connected, the horizontal section is fixedly connected to the base, the vertical section extends into the limiting groove, and the second limiting wall extends between the vertical section and the base.

[0015] Preferably, a guide rod is fixed on the advance and retreat slider, a guide hole is provided on the base, the guide rod extends into the guide hole, and the axis of the guide rod is arranged parallel to the length direction of the slider.

[0016] Preferably, the guide rod outer sleeve is provided with a reset spring, one end of the reset spring is fixed to the guide rod, and the other end is fixedly connected to the base, and the reset spring is used to drive the advance and retreat slider to reset when the driving mechanism or manual thrust is withdrawn.

[0017] Preferably, a sealing portion is fixed to the end of the shaft, a torsion spring is provided on the shaft outer sleeve, the fixed end of the torsion spring is fixed to the advance and retreat slider, and the free end of the torsion spring is fixedly connected to the sealing portion, so as to drive the shaft to rotate and reset.

[0018] Preferably, the hawk-beak scissors also include a reset spring, a fixed section of which is fixed on the base, and a deformable section of which is fixedly connected to the hawk-beak knife, for driving the hawk-beak knife to rotate and reset when the driving mechanism or manual thrust is removed.

[0019] Preferably, the reset spring is an L-shaped spring.

[0020] The present invention provides a device for cutting sewing thread for suturing a cylindrical knitted fabric port, comprising a driving mechanism and the above-mentioned hawk-beak type scissors, wherein the advancing and retreating sliding block is movably arranged under the push of the driving mechanism.

[0021] The hawk-beak scissors and the cylindrical knitted fabric port suture sewing thread cutting device provided by the present invention have the following beneficial effects compared with the prior art: when the driving mechanism or manual thrust advances and retreats the slider, the advance and retreat slider slides linearly relative to the base, the straight knife moves linearly, and the hawk-beak knife rotates with the shaft as the axis under the pull of the advance and retreat slider, engages with the straight knife, and cuts the target object. The hawk-beak scissors of this structure have strong cutting ability, the straight knife moves linearly, the hawk-beak knife rotates, the interference with the external structure is reduced, and the operation is simple and convenient. When the hawk-beak scissors are applied to the cylindrical knitted fabric port suture sewing thread cutting device, compared with the method of two blades moving towards each other to clamp the thread and cut in the prior art, it can prevent interference with external components and prevent the sewing thread on the steel needle from falling off, including the sewing thread. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 It is a schematic diagram of the overall structure of the hawk-beak scissors;

[0024] Figure 2 This is a schematic diagram of the structure of the hawk-billed scissors from another perspective;

[0025] Figure 3 It is an exploded view of the hawk-beak scissors;

[0026] Figure 4 It is a front view of the hawk-beak scissors;

[0027] Figure 5 yes Figure 4 Schematic diagram of the structure of the medium BB;

[0028] Figure 6 It is a schematic diagram of the initial state of the hawk-beak scissors;

[0029] Figure 7 This is a schematic diagram of the state when the straight knife and the eagle-beak knife are engaged.

[0030] In the figure, 1, base; 101, guide hole; 2, advance and retreat slider; 3, hawkbill knife; 31, second inclined blade; 32, limit groove; 321, first limit wall; 322, second limit wall; 4, straight knife; 41, first inclined blade; 5, shaft; 51, blocking part; 6, pull rod; 61, horizontal section; 62, vertical section; 7, torsion spring; 8, guide rod; 9, reset spring; 10, reset spring; 11, sewing thread. DETAILED DESCRIPTION

[0031] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "length", "width", "height", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "side" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0033] The embodiment of the present invention provides an eagle-beak type scissors and a cylindrical knitted fabric port suture sewing thread cutting device, wherein the straight knife moves in a straight line and the eagle-beak knife rotates, thereby reducing interference with external structures and being simple and convenient to operate.

[0034] Combine the following Figure 1-Figure 7 The technical solution provided by the present invention is described in more detail.

[0035] Embodiment 1:

[0036] See also Figure 1-Figure 4 As shown, the hawk-beak scissors provided by the present invention include a base 1, an advance and retreat slider 2, a straight knife 4, and a hawk-beak knife 3, wherein: the advance and retreat slider 2 is slidably connected to the base 1, one end of the advance and retreat slider 2 is a driving end, and the straight knife 4 is fixed to the other end of the advance and retreat slider 2; the hawk-beak knife 3 is rotatably connected to the advance and retreat slider 2 through a shaft 5, and when the driving end is driven by a driving mechanism or artificial thrust, the advance and retreat slider 2 slides linearly compared to the base 1, and the hawk-beak knife 3 can rotate around the shaft 5 as the axis under the pull of the advance and retreat slider 2, thereby closing with the straight knife 4 to bite off the target object.

[0037] The advancing and retreating slide block 2 is movable under the push of a driving mechanism or manpower, and the driving mechanism may be a pneumatic push rod, an electric push rod, etc. Figure 6 As shown, Figure 6 : is a schematic diagram of the initial state of the hawk-beak scissors. In the initial state, the driving mechanism pushes the advance and retreat slider 2, and the advance and retreat slider 2 moves forward. Compared with the sliding of the base 1, the hawk-beak knife 3 can rotate with the shaft 5 as the axis under the pull of the advance and retreat slider 2, so as to close with the straight knife 4 to bite off the target object. Figure 7 As shown, Figure 7 It is a schematic diagram of the state when the straight knife 4 and the hawk-beak knife 3 are engaged.

[0038] In the hawk-beak scissors of this embodiment, when the driving mechanism or manual thrust advances and retreats the slide block 2, the slide block 2 slides linearly relative to the base 1, the straight knife 4 moves linearly, and the hawk-beak knife 3 rotates with the shaft 5 as the axis under the pull of the advance and retreat slide block 2, engages with the straight knife 4, and cuts off the target object. The hawk-beak scissors of this structure have strong cutting ability, the straight knife 4 moves linearly, the hawk-beak knife 3 rotates, reduces interference with external structures, and is simple and convenient to operate.

[0039] When the hawk-beak scissors are used on the device for cutting the sewing thread 11 at the end of a cylindrical knitted fabric (such as socks), compared with the method in the prior art in which two blades move towards each other to clamp and cut the thread, it can prevent interference with external components, prevent the sewing thread 11 on the steel needle from falling off, and contain the sewing thread 11.

[0040] As an alternative embodiment, see Figure 4 As shown, the straight knife 4 has a first inclined blade 41, the blade of the hawkbill knife 3 is hawkbill-shaped, and it has a second inclined blade 31. When the hawkbill knife 3 and the straight knife 4 are closed, the second inclined blade 31 cooperates with the first inclined blade 41 to cut off the target object.

[0041] The first inclined blade 41 of the straight knife 4 and the second inclined blade 31 of the hawkbill knife 3 are closed to each other, and are used to bite off the target object (such as Figure 1 Sewing thread 11).

[0042] As an alternative embodiment, see Figure 1-Figure 4 As shown, a pull rod 6 is provided on the base 1, and a limiting groove 32 is provided on the hawk-beak knife 3, wherein: the limiting groove 32 includes a first limiting wall 321 and a second limiting wall 322 which are arranged opposite to each other, and the pull rod 6 extends into the limiting groove 32; in the initial state, the pull rod 6 abuts against the first limiting wall 321; when the advance and retreat slider 2 slides, the pull rod 6 can pull the second limiting wall 322, thereby rotating the hawk-beak knife 3 to a state closed with the straight knife 4.

[0043] See also Figure 6 As shown, in the initial state, the pull rod 6 abuts against the first limiting wall 321 to ensure that the hawkbill knife 3 is in an open state; see Figure 7 As shown, when the driving mechanism pushes the advance and retreat slider 2, the advance and retreat slider 2 moves forward, and compared with the sliding of the base 1, the limit groove 32 moves forward. At this time, until the pull rod 6 pulls the second limit wall 322, the hawkbill knife 3 rotates under the action of the pull rod 6, and the hawkbill knife 3 rotates to a state closed with the straight knife 4.

[0044] As an alternative embodiment, see Figure 4As shown, the pull rod 6 includes a horizontal section 61 and a vertical section 62 which are fixedly connected. The horizontal section 61 is fixedly connected to the base 1 , the vertical section 62 extends into the limiting groove 32 , and the second limiting wall 322 extends between the vertical section 62 and the base 1 .

[0045] The pull rod 6 of the above structure can cooperate with the limiting groove 32 on the hawk-bill knife 3 to realize the linkage of the advance and retreat slider 2 and the hawk-bill knife 3.

[0046] As an alternative embodiment, see Figure 1 and Figure 5 As shown, a guide rod 8 is fixed on the advance and retreat slider 2, a guide hole 101 is provided on the base 1, the guide rod 8 extends into the guide hole 101, and the axis of the guide rod 8 is arranged parallel to the length direction of the slider.

[0047] The guide rod 8 and the guide hole 101 on the base 1 play a role of limiting and guiding, and the advance and retreat slider 2 can slide linearly relative to the base 1 along the guide structure.

[0048] As an alternative embodiment, see Figure 3 and Figure 5 As shown, a return spring 10 is provided on the outer sleeve of the guide rod 8, one end of the return spring 10 is fixed on the guide rod 8, and the other end is fixedly connected to the base 1. The return spring 10 is used to drive the advance and retreat slider 2 to reset when the driving mechanism or manual thrust is withdrawn.

[0049] See also Figure 7 As shown, when the driving mechanism pushes the advance and retreat slider 2, the advance and retreat slider 2 moves forward, and compared with the sliding of the base 1, the limiting groove 32 moves forward, the reset spring 10 is stretched, and the pull rod 6 pulls the second limiting wall 322. At this time, the hawkbill knife 3 rotates under the action of the pull rod 6, and the hawkbill knife 3 rotates to a state closed with the straight knife 4.

[0050] See also Figure 6 As shown, after the driving mechanism is separated from the advance-retract slide block 2, the advance-retract slide block 2 slides to the initial position under the elastic restoring force of the reset spring 10, and the hawk-beak knife 3 reopens.

[0051] As an alternative embodiment, see Figure 2 As shown, a blocking portion 51 is fixed to the end of the shaft 5, a torsion spring 7 is provided on the outer sleeve of the shaft 5, the fixed end of the torsion spring 7 is fixed to the advance and retreat slider 2, and the free end of the torsion spring 7 is fixedly connected to the blocking portion 51, which is used to drive the shaft 5 to rotate and reset.

[0052] As an alternative embodiment, see Figure 6 and Figure 7As shown, the hawk-beak scissors also include a reset spring 9, a fixed section of which is fixed on the base 1, and a deformed section of which is fixedly connected to the hawk-beak knife 3, for driving the hawk-beak knife 3 to rotate and reset when the driving mechanism or manual thrust is removed.

[0053] See also Figure 7 As shown, when the driving mechanism pushes the advance and retreat slider 2, the advance and retreat slider 2 moves forward, compared with the sliding of the base 1, the limit slot 32 moves forward, the reset spring 10 is compressed, the torsion spring 7 is compressed, and the reset spring 9 is compressed. Figure 6 As shown, after the driving mechanism is separated from the advance and retreat slider 2, the advance and retreat slider 2 slides to the initial position under the elastic restoring force of the reset spring 10, the shaft 5 is reset under the action of the torsion spring 7, and the hawkbill knife 3 is reopened under the action of the reset spring 9. The torsion spring 7 is used to drive the shaft 5 to reset quickly, and the reset spring 9 drives the hawkbill knife 3 to reset quickly.

[0054] As an alternative embodiment, see Figure 6 and Figure 7 As shown, the reset spring piece 9 is an L-shaped spring piece.

[0055] The hawk-beak type scissors of the present embodiment, its working principle is:

[0056] Thread cutting process: The pneumatic parts (driving mechanism) enter the working state to push the slide block 2 forward and backward, such as Figure 7 As shown, the advance and retract slider 2 moves forward, the straight knife 4 moves to the steel needle to cut the remaining thread on the steel needle, and the pull rod 6 pulls the second limiting wall 322. At this time, the hawkbill knife 3 rotates under the action of the pull rod 6. The hawkbill knife 3 rotates to a state closed with the straight knife 4, first biting the sewing thread 11 on the steel needle and then cutting it.

[0057] Scissors open: reset spring 10, torsion spring 7, reset spring 9 work, advance and retreat slider 2 retreat, straight knife 4 retreat, shaft 5 reset, hawkbill knife 3 reset, hawkbill knife 3 and straight knife 4 open, pull rod 6 abuts against first limit wall 321, ensure that hawkbill knife 3 is in open state, such as Figure 7 shown.

[0058] Embodiment 2:

[0059] This embodiment provides a device for cutting a cylindrical knitted fabric port suture sewing thread 11, comprising a driving mechanism and the above-mentioned hawk-beak scissors, wherein the advance and retreat slider 2 is movable under the push of the driving mechanism.

[0060] The cylindrical knitted fabric port suture sewing thread 11 cutting device of this embodiment can be driven by a pneumatic push rod in the prior art.

[0061] When the hawk-beak scissors are used on the device for cutting the sewing thread 11 for suturing the end of a cylindrical knitted fabric, compared with the method in the prior art in which two blades move towards each other to clamp and cut the thread, it can prevent interference with external components and prevent the sewing thread 11 on the steel needle from falling off.

[0062] In the description of this specification, specific features, structures or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0064] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A pair of hawk-beak scissors, characterized in that: It includes a base, a sliding block, a straight knife, and an eagle-beak knife, among which: The advance and retreat slider is slidably connected to the base, one end of the advance and retreat slider is a driving end, and the straight knife is fixed to the other end of the advance and retreat slider; The hawkbill knife is rotatably connected to the advance and retreat slider via a shaft. When the driving mechanism or manual force is applied to the driving end, the advance and retreat slider slides linearly relative to the base. The hawkbill knife can rotate around the shaft as the axis under the pull of the advance and retreat slider, thereby closing with the straight knife to bite off the target object.

2. The hawk-beak scissors according to claim 1, characterized in that: The straight knife has a first inclined blade, the hawkbill knife has a hawkbill-shaped blade edge and has a second inclined blade. When the hawkbill knife is closed with the straight knife, the second inclined blade cooperates with the first inclined blade to cut off the target object.

3. The hawk-beak scissors according to claim 1, characterized in that: The base is provided with a pull rod, and the hawk-beak knife is provided with a limiting groove, wherein: The limiting groove comprises a first limiting wall and a second limiting wall which are arranged opposite to each other, and the pull rod extends into the limiting groove; In the initial state, the pull rod abuts against the first limiting wall; when the advance and retreat slider slides, the pull rod can pull the second limiting wall, so that the hawk-beak knife rotates to a state of being closed with the straight knife.

4. The hawk-beak scissors according to claim 3, characterized in that: The pull rod includes a horizontal section and a vertical section that are fixedly connected. The horizontal section is fixedly connected to the base. The vertical section extends into the limiting groove. The second limiting wall extends between the vertical section and the base.

5. The hawk-beak scissors according to claim 1, characterized in that: A guide rod is fixed on the advance and retreat slider, a guide hole is arranged on the base, the guide rod extends into the guide hole, and the axis of the guide rod is arranged parallel to the length direction of the slider.

6. The hawk-beak scissors according to claim 5, characterized in that: The guide rod outer sleeve is provided with a reset spring, one end of the reset spring is fixed on the guide rod, and the other end is fixedly connected to the base. The reset spring is used to drive the hawkbill knife to reset when the driving mechanism or manual thrust is withdrawn.

7. The hawk-beak scissors according to claim 5, characterized in that: A blocking portion is fixed to the end of the shaft, a torsion spring is provided on the shaft outer sleeve, the fixed end of the torsion spring is fixed to the advance and retreat slider, and the free end of the torsion spring is fixedly connected to the blocking portion, so as to drive the shaft to rotate and reset.

8. The hawk-beak scissors according to claim 1, characterized in that: The hawk-beak scissors also include a reset spring, a fixed section of which is fixed on the base, and a deformed section of which is fixedly connected to the hawk-beak knife, for driving the hawk-beak knife to rotate and reset when the driving mechanism or manual thrust is removed.

9. The hawk-beak scissors according to claim 8, characterized in that: The reset spring piece is an L-shaped spring piece.

10. A device for cutting sewing thread for suturing a cylindrical knitted fabric end, characterized in that: It comprises a driving mechanism and the hawk-beak scissors according to any one of claims 1 to 9, wherein the advance and retreat sliding block is movably arranged under the push of the driving mechanism.

Images