Automatic thread trimming machine for twist needle

Abstract

The invention discloses an automatic thread trimming machine for a twist needle, and belongs to the technical field of twist needle processing equipment.The automatic thread trimming machine comprises a frame body and a workbench arranged on the frame body, the workbench is provided with a conveying device and a shearing device, and the shearing device comprises a thread inlet component and a shearing component; the shearing component comprises a fixed cutter and a movable cutter which is in sliding fit relative to the fixed cutter, the fixed cutter is provided with a twist needle penetrating hole, and a clamping component is arranged at the discharging end of the twist needle penetrating hole; the clamping component comprises a left clamping seat, a right clamping seat, an upper clamping piece and a lower clamping piece, the upper clamping piece and the lower clamping piece are arranged on the opposite sides of the left clamping seat and the right clamping seat in an embedded mode, clamping openings are formed in the opposite sides of the upper clamping piece and the lower clamping piece, the upper clamping piece and the lower clamping piece are connected to form a clamping hole, and rubber pads are arranged on the clamping openings. The twist needle thread trimming machine effectively solves the problem that the quality and the production efficiency of products are affected due to loose threads and different lengths of the products sheared by the existing twist needle thread trimming machine.

Description

Technical Field

[0001] The invention relates to the technical field of twist needle processing equipment, in particular to an automatic thread trimmer for twist needles. Background Art

[0002] Twisted wire elastic pins (commonly known as twist pins) are a type of connector widely used in electronic components. They are made of two layers of multi-strand copper wires twisted in opposite directions and welded at both ends. They have the advantages of small size, light weight, and reliable contact. Traditional processes use scissor-like cutters to cut, which can easily lead to problems such as loose strands and uneven lengths of the twisted wires, affecting product quality and production efficiency.

[0003] The production process of twisted wire pins generally requires processes such as wire feeding, fixed-length slitting and cutting. The existing fixed-length slitting of twisted needles is to pass the twisted needles through the twisted needle holes set on the cutter into the shearing area, and then the fixed cutter cooperates with the moving cutter to shear the twisted needles. Since the aperture is slightly larger than the diameter of the twisted needle, a rigid contact is formed between the twisted needle and the twisted needle holes when the fixed cutter cooperates with the moving cutter to shear. The twisted needles are easily deformed after shearing, affecting subsequent transmission and production. In addition, the deformed twisted needles need to be manually screened and straightened. This process not only increases the production cost, but also reduces the efficiency of automated production. Summary of the invention

[0004] The purpose of the present invention is to overcome the above-mentioned background technical difficulties. The present invention provides an automatic wire trimmer that can meet the requirements of flattening the sheared end surface of the twist needle and straighten the sheared twist needle at the same time.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an automatic thread trimming machine for twist needles, comprising a frame and a workbench arranged on the frame, the workbench is provided with a conveying device and a shearing device, the conveying device comprises a wire-releasing mechanism, a wire-pulling straightening component, a wire-pulling component and a buffer component, the wire-pulling straightening component and the wire-pulling component are arranged in a straight line on a support plate along the direction of the twist needles, the shearing device comprises a wire-feeding component and a shearing component, the wire-feeding component is arranged on one side of the feeding end of the shearing component, the shearing component comprises a fixed cutter and a movable cutter slidably matched with the fixed cutter, the fixed cutter is provided with a twist needle perforation, and is arranged on the twist needle A clamping component is provided at the discharge end of the needle perforation, and the clamping component includes a left clamping seat and a right clamping seat, and an upper clamping piece and a lower clamping piece are embedded on the opposite sides of the left clamping seat and the right clamping seat. The left clamping seat and the right clamping seat are connected by a slide groove to form a shearing zone, and the movable cutter is placed in the shearing zone and is arranged to fit the side of the left clamping seat relative to the right clamping seat. Guide holes for the twist needle to pass through are provided on the left clamping seat and the right clamping seat, and clamping openings are provided on the opposite sides of the upper clamping piece and the lower clamping piece to connect them to form a clamping hole. Rubber pads are provided on the clamping openings, and a buffer pad layer is also provided between the rubber pads and the clamping openings.

[0006] Furthermore, the slide member is composed of two slide blocks, and a limit buffer platform is provided at the lower end of the slide member corresponding to the movable cutter, so that the horizontal height of the bottom end of the shearing zone is higher than the horizontal height of the top end of the limit buffer platform.

[0007] Furthermore, the shearing device is also provided with a blanking component for straightening the deformation of the twist needle, and the blanking component is arranged on one side corresponding to the discharge end of the shearing component.

[0008] Furthermore, the material unloading component includes a shell and a receiving platform arranged in the shell, the upper end of the receiving platform is embedded with a symmetrically arranged mounting plate along the material unloading and transmission direction of the twist needle to form a straightening groove, and a material unloading straightening component is arranged in the straightening groove, the material unloading straightening component includes a comb-shaped straightening wheel mounting part, the straightening wheel mounting part is connected to the straightening groove through a bearing seat, a straightening wheel is arranged at the end of each comb tooth of the straightening wheel mounting part, and the straightening wheels on the straightening wheel mounting part in the straightening groove are staggered to form a straightening channel, and a connecting part for driving the straightening wheel to rotate is provided at the end of the straightening wheel mounting part; the feeding end of the material unloading component is also connected to a material guide groove, and a plurality of material guide wheels are arranged in the material guide groove.

[0009] Furthermore, the guide wheel comprises a plurality of upper guide wheels and a plurality of lower guide wheels, the gap height between the upper guide wheels and the lower guide wheels is the same as the height of the straightening channel and is in the same horizontal plane, so that a feeding straightening channel is formed.

[0010] Furthermore, the lower clamping piece on the left clamping seat is fixedly connected to it, and the upper clamping piece is connected to the left clamping seat through a driving slide, the diameter of the clamping hole is smaller than the diameter of the guide hole, and the center of the clamping hole and the center of the guide hole are in the same horizontal plane, and the clamping hole on the left clamping seat close to the movable cutter side and the left clamping seat close to the movable cutter side are in the same vertical plane.

[0011] Furthermore, the lower clamping piece on the right clamping seat is fixedly connected thereto, and the upper clamping piece is connected to the right clamping seat through a driving slide, the diameter of the clamping hole is smaller than the diameter of the guide hole, and the center of the clamping hole and the center of the guide hole are in the same horizontal plane.

[0012] The invention provides an automatic twist needle thread trimmer, which has the following beneficial effects: The present invention uses a wire straightening component and a shearing component in conjunction with a clamping component and a blanking component, which can ensure that the sheared end surface of the twist needle is flat and at the same time automatically straighten the sheared twist needle, thereby realizing automated shearing production and improving the qualified rate of product production. The present invention is easy to operate and has strong practicality, and can effectively solve the problem that the existing twist needle wire shearing machine shears products with scattered threads and uneven lengths, which affects the quality and production efficiency of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the automatic twist needle thread trimmer of the present invention.

[0014] Figure 2 It is a schematic structural diagram of the automatic thread trimmer for twist needles of the present invention.

[0015] Figure 3 It is a schematic diagram of the structure of the conveying device of the twist needle automatic thread trimmer of the present invention.

[0016] Figure 4 It is a schematic diagram of the structure of the shearing device of the automatic thread trimmer for twist needles of the present invention.

[0017] Figure 5 It is a schematic diagram of the top view of the structure of the automatic thread trimmer for twist needles of the present invention.

[0018] Figure 6 It is a schematic diagram of the structure of the feeding and straightening channel of the twist needle automatic thread trimmer of the present invention.

[0019] Figure 7 It is a schematic diagram of the clamping structure of the automatic twist needle thread trimmer of the present invention.

[0020] Figure 8 It is a schematic diagram of the top view of the shearing area of ​​the automatic thread trimmer for twist needles of the present invention.

[0021] In the figure, 1. wire-releasing mechanism; 2. wire-pulling and straightening component; 3. wire-pulling component; 4. buffer component; 5. wire-feeding component; 6. shearing component; 61. fixed cutter; 62. moving cutter; 7. left clamping seat; 8. right clamping seat; 9. upper clamping member; 10. lower clamping member; 11. slide member; 111. slide block; 112. limit buffer platform; 12. shearing area; 13. clamping mouth; 14. rubber pad; 15. buffer cushion layer; 16. material unloading component; 161. shell; 162. receiving platform; 163. mounting plate; 164. straightening groove; 165. material unloading and straightening component; 17. material guide groove; 18. material guide wheel; 19. material feeding and straightening channel. DETAILED DESCRIPTION

[0022] The technical scheme of the present invention is clearly and completely described below in conjunction with the specific embodiments of the present invention. The described embodiments are only part of the embodiments of the present invention, not all. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1 like Figure 1-5The present invention provides an automatic thread trimming machine for twist needles, comprising a frame and a workbench arranged on the frame, wherein the workbench is provided with a conveying device and a shearing device, wherein the conveying device comprises a wire-releasing mechanism 1, a wire straightening component 2, a wire pulling component 3 and a buffer component 4, wherein the wire straightening component 2 and the wire pulling component 3 are arranged in a straight line on a support plate along the direction of the twist needles, wherein the wire-releasing mechanism 1 comprises at least a rotating shaft mounting frame and a rotating shaft mounted thereon, wherein one end of the rotating shaft is cooperated to install a material discharge tray, and the other end can also be cooperated to install a tension adjuster, and the length of the wire-releasing of the twist needle by the tension adjuster can be appropriately adjusted according to needs. The wire pulling straightening component 2 includes a comb-tooth-shaped straightening wheel mounting fixed part and a comb-tooth-shaped straightening wheel mounting movable part. A straightening wheel is provided at the end of each comb tooth of the comb-tooth-shaped straightening wheel mounting fixed part and the comb-tooth-shaped straightening wheel mounting movable part. The straightening wheel mounting fixed part is fixedly mounted on a support plate. The straightening wheel mounting movable part is mounted on the support plate through a driving device. The straightening wheels on the straightening wheel mounting movable part and the straightening wheels on the straightening wheel mounting fixed part are alternately arranged. The driving device is used for driving the opening and closing of the straightening wheel mounting movable part and the straightening wheel mounting fixed part. The wire-pulling component 3 includes an active wire-pulling wheel and a driven wire-pulling wheel that cooperate with each other, the active wire-pulling wheel is driven by a wire-pulling motor, wherein the wire-pulling motor is fixedly mounted on a support plate, the driven wire-pulling wheel is mounted on a driven wire-pulling wheel mounting seat, the driven wire-pulling wheel mounting seat is driven by a driving control device to open and close the driven wire-pulling wheel and the active wire-pulling wheel, the driving control device includes an adjusting member mounting seat mounted on the support plate, the adjusting member mounting seat is provided with a bolt hole, an adjusting bolt is screwed into the bolt hole; the driven wire-pulling wheel mounting seat is mounted on the support plate through a rotating shaft or a slide rail, and the end of the adjusting bolt presses against the driven wire-pulling wheel mounting seat.

[0024] The shearing device includes a wire feeding component 5 and a shearing component 6, wherein the wire feeding component 5 is arranged on one side of the feeding end of the shearing component 6, and the wire feeding mechanism includes a wire feeding guide wheel, and a wire feeding driving wheel driven by a stepping motor is also provided on the right side of the guide wheel along the transmission direction of the twist needle, and a wire feeding driven wheel is provided above the wire feeding driving wheel in contact with and arranged in parallel with the wire feeding driving wheel; the shearing component 6 includes a fixed cutting knife 61 and a movable cutting knife 62 that is slidably matched with the fixed cutting knife 61, and the movable cutting knife 62 is fixed on the translation slide, and the movable cutting knife 62 is matched with a driving cylinder, and the fixed cutting knife 61 is provided with a There is a twist needle perforation, and a clamping member is provided at the discharge end of the twist needle perforation, the clamping member includes a left clamping seat 7 and a right clamping seat 8 and an upper clamping member 9 and a lower clamping member 10 embedded on the opposite sides of the left clamping seat 7 and the right clamping seat 8, the left clamping seat 7 and the right clamping seat 8 are connected by a slide groove member 11 to form a shearing area 12, the movable cutter 62 is placed in the shearing area 12, and is arranged to fit the side of the left clamping seat 7 relative to the right clamping seat 8. When the application needs to cut the wire, the driving cylinder drives the movable cutter 62 to slide up and down quickly, and cooperates with the clamping member to shear the twist needle.

[0025] The left clamping seat 7 and the right clamping seat 8 are both provided with guide holes for the twist needle to pass through, and the upper clamping piece 9 and the lower clamping piece 10 are provided with a clamping opening 13 on the opposite side to form a clamping hole, which is convenient for the twist needle to be in a horizontal straight line state during subsequent cutting, and avoids the phenomenon of uneven product length caused by shearing when the twist needle is tilted. The clamping opening 13 is provided with a rubber pad 14. Through the setting of the rubber pad 14, the contact between the clamping hole and the twist needle is flexible, ensuring more sufficient shear contact. A buffer layer 15 is also provided between the rubber pad 14 and the clamping opening 13, which can further prevent the deformation caused by the clamping hole on the twist needle, so that the shear force is more evenly added; the lower clamping piece 10 on the left clamping seat 7 is fixedly connected to it, and the upper clamping piece 9 is connected to the left clamping seat 7 through a driving slide, the diameter of the clamping hole is smaller than the diameter of the guide hole, and the center of the clamping hole and the center of the guide hole are in the same horizontal plane, and the clamping hole on the left clamping seat 7 close to the movable cutter 62 and the side of the left clamping seat 7 close to the movable cutter 62 are in the same vertical plane, the lower clamping piece 10 on the right clamping seat 8 is fixedly connected to it, and the upper clamping piece 9 is connected to the right clamping seat 8 through a driving slide, the diameter of the clamping hole is smaller than the diameter of the guide hole, and the center of the clamping hole and the center of the guide hole are in the same horizontal plane.

[0026] During use, the automatic thread trimmer for twisted needles of the present invention first places a discharge tray on which the coils of twisted needles are wound on a rotating shaft mounting frame, and then the lead wire passes through the wire straightening component 2, the wire pulling component 3, the buffer component 4, and the wire feeding component 5 in sequence and is placed in the shearing component 6. According to production requirements, the twisted needles are sheared by setting corresponding parameters through the operation controller. The automatic thread trimmer for twisted needles of the present application has a complete shearing end without loose threads and is smooth through the setting of the clamping component. Through experimental comparison, it is found that the comprehensive shearing neatness (i.e., whether the end face is smooth, whether there are loose threads at the shearing end, and whether it is complete) of the automatic thread trimmer for twisted needles provided by the present application is improved by 12% compared with the comprehensive shearing neatness of the wire trimmer used for traditional twisted needles.

[0027] Embodiment 2 Based on the above embodiment, this embodiment further includes a limit buffer table 112, such as Figure 6 The slide member 11 is composed of two slide blocks 111, and a limiting buffer platform 112 is provided at the lower end of the slide member 11 corresponding to the movable cutter 62, so that the horizontal height of the bottom end of the shearing area 12 is higher than the horizontal height of the top end of the limiting buffer platform 112. The present application provides a limiting protection for the movable cutter 62 through the setting of the limiting buffer platform 112, so that the movable cutter 62 can be quickly sheared by the clamping member under the action of the driving cylinder, thereby improving its practical performance. During use, the sharpness of the cut of the movable cutter 62 can be ensured, so as to increase the number of shearing times of the movable cutter 62 while ensuring the shearing quality.

[0028] Embodiment 3 In this embodiment, on the basis of the above embodiment, the shearing device is further provided with a blanking member 16 for straightening the deformation of the twist needle, such as Figure 6-7The blanking component 16 is arranged on one side of the discharge end of the corresponding shearing component 6. The blanking component 16 includes a shell 161 and a receiving platform 162 arranged in the shell 161, and the upper end of the receiving platform 162 is embedded with a symmetrically arranged mounting plate 163 along the twist needle blanking transmission direction to form a straightening groove 164, and a blanking straightening component 165 is arranged in the straightening groove 164, and the blanking straightening component 165 includes a comb-shaped straightening wheel mounting member, and the straightening wheel mounting member is connected to the straightening groove 164 through a bearing seat, and a straightening wheel is provided at the end of each comb tooth of the straightening wheel mounting member, and the straightening wheels on the straightening wheel mounting member in the straightening groove 164 are staggered to form a straightening channel, and a connecting member for driving the straightening wheel to rotate is provided at the end of the straightening wheel mounting member. The blanking component 16 of the present application shares a driving device with the wire drawing straightening component 2, that is, the connecting member is connected through a pulley assembly It is connected to the driving device of the wire-pulling and straightening component 2, and the present application drives each component to run and pause through an operation controller. After the shearing component 6 shears, the wire-pulling and straightening component 2 is driven to run through the operation controller, and at the same time, the connecting part is driven to operate through the pulley assembly, so that the straightening wheel rotates counterclockwise, and the sheared twisted needles are straightened by the friction force of the contact and extrusion between the straightening wheel and the twisted needles. At the same time, the twisted needles are driven to move in the straightening channel along the twisted needle transmission direction through the friction force of the contact and extrusion. Through experimental comparison, it is concluded that the twisted needle automatic wire cutting machine provided by the present application can directly use the sheared twisted needles for the next process through the set unloading component 16, and its shearing deformation is reduced by more than 8% compared with the deformation of the traditional twisted needle wire cutting machine, so that the shearing quality and yield rate of the twisted needles are significantly improved.

[0029] Embodiment 4 Based on the above embodiment, this embodiment further includes a guide trough 17 connected to the feeding end of the unloading member 16, such as Figure 6 The guide groove 17 is provided with a plurality of guide wheels 18, and the guide wheels 18 include a plurality of upper guide wheels 18 and a plurality of lower guide wheels 18. The upper guide wheels 18 of the present application are connected to the driving device of the wire straightening component 2 through a pulley assembly, that is, the driving device drives the wire straightening component 2 to move while driving the upper guide wheels 18 in the guide groove 17 and the straightening wheels of the lower material component 16 to rotate counterclockwise through the corresponding pulley assembly, and the friction force of contact extrusion drives the twist needle to move along the twist needle in the straightening channel. Movement in the transmission direction, the upper guide wheel 18 and the lower guide wheel 18 are symmetrically arranged, and the gap height between the upper guide wheel 18 and the lower guide wheel 18 is the same as the height of the straightening channel, and are in the same horizontal plane, so that a feeding straightening channel 19 is formed. The height of the feeding straightening channel 19 of the present application is slightly larger than the diameter of the twist needle, so that the sheared twist needle can run in a horizontal straight line state in the feeding straightening channel 19, so as to improve the transmission quality of the twist needle after shearing and avoid the subsequent shearing of the twist needle blocking the unloading component 16.

[0030] Embodiment 5 On the basis of the above-mentioned embodiments, the present embodiment further includes a laser positioning component used in conjunction with the blanking component 16 and the shearing component 6. The parameters of each component are set by operating the controller according to the shearing production requirements. When the twist needle is transmitted to the shearing length sensing area set by the laser positioning component, the conveying device is paused according to the set parameters, and then the clamping component is started to clamp the twist needle, and then the shearing component 6 is started to shear the twist needle. After the shearing is completed, the shearing component 6 and the clamping component are reset, and the conveying device is started to transmit the twist needle for the next shearing, thereby realizing the automatic shearing transmission of the twist needle and improving the shearing production efficiency.

[0031] Control group 1 The difference between this control group and the above-mentioned embodiment 1 is that the movable cutter 62 is placed in the shearing area 12, and is arranged in contact with the right clamping seat 8 on one side relative to the left clamping seat 7. Through experimental observation, it is found that the connection end of the sheared twist needle and the main line of the control group is easily deformed by the shear force of the movable cutter 62. The twist needles of the same model and the same number of capstans are sheared, and the results show that the sheared end surface of the twist needle in the control group is neat and has no loose threads. However, the deformation amount of the sheared twist needle products produced by the control group is 15% higher than the deformation amount of the sheared twist needle products produced in embodiment 1 of the present application.

[0032] Control group 2 The difference between this control group and the above-mentioned embodiment 1 is that the clamping member includes a clamping seat and an upper clamping member 9 and a lower clamping member 10 embedded in the clamping seat, and the clamping hole on the clamping seat close to the movable cutter 62 is in the same vertical plane as the side of the clamping seat close to the movable cutter 62. Through experimental comparison, it is found that the sheared end surface of the second twist needle in the control group is neat and has no loose threads, but the deformation amount of the sheared twist needle product produced by the control group 2 is increased by 8% compared with the deformation amount of the sheared twist needle product produced in embodiment 1 of the present application.

[0033] Control group three The difference between this control group and the above-mentioned Example 3 is that a wire hole tube is used to replace the guide groove between the blanking component 16 and the shearing component 6. Through experimental observation, it is found that during the blanking process of the twist needle after shearing, the sheared twist needle enters the wire hole tube, and a driving member is required to be additionally provided to drive the sheared twist needle to transmit in the wire hole tube, so as to avoid the sheared twist needle blocking the wire hole tube. The shearing processing production cost of the three pairs of twist needles in the control group is increased by 3% compared with the shearing processing production cost of the twist needles in Example 3 of the present application.

[0034] Control group 4 The difference between this control group and the above-mentioned embodiment 1 is that no rubber pad 14 is provided on the clamping port 13, and a buffer layer 15 is provided between the rubber pad 14 and the clamping port 13, so that the contact between the twist needle and the clamping port 13 is flexible. It is found through experimental observation that during the shearing process of the twist needle, the shearing force of the movable cutter 62 combined with the fixed cutter 61 acts on the twist needle, and the twist needle deviates with the movement direction of the shear force. The buffer layer 15 absorbs part of the force, which easily makes the shearing force uneven, causing the sheared twist needle to produce scattered threads and uneven end face shearing. A shearing comparison was made on twist needles of the same model and the same number of capstans, and it was found that the qualified rate of the sheared twist needles produced by the control group 4 was 5% lower than that of the sheared twist needles produced by the embodiment 1 of the present application.

[0035] Control group five The difference between the control group and the above-mentioned embodiment 2 is that the control group is a twist needle wire trimmer in the prior art, which at least includes a cutting mechanism, and the cutting mechanism at least includes a cutting mechanism mounting plate 163, on which a longitudinally arranged wire feeding driving wheel driven by a stepping motor is installed, and a wire feeding driven wheel is installed above the wire feeding driving wheel on the cutting mechanism mounting plate 163 and is fitted thereon; a longitudinally vertically arranged left cutting block is provided on the cutting mechanism mounting plate 163 on the right side of the wire feeding driving wheel and the wire feeding driven wheel, and a right cutting block is provided on the right side of the left cutting block, and the right cutting block The top is fixed on the telescopic rod of the cutting cylinder fixed on the cutting mechanism mounting plate 163; the corresponding positions on the left cutting block and the right cutting block are respectively provided with material holes passing through the left and right sides of each other, and the height of the material hole on the left cutting block is equal to the height of the place where the wire feeding active wheel and the wire feeding driven wheel fit each other; through experimental comparison, it is found that after the twist needle wire cutting machine provided by the control group five shears the twist needle, the shaping efficiency of the deformation of the product is reduced by 10% compared with the twist needle wire cutting machine provided by the embodiment two of the present application.

[0036] In summary, the automatic thread trimmer for twist needles provided in the present application performs shearing processing on twist needles, and the comprehensive shearing neatness (i.e., whether the end face is smooth, whether there are loose threads at the sheared end, and whether it is complete) is improved by 12% compared with the comprehensive shearing neatness of the thread trimmer used for traditional twist needles, and the shaping efficiency of the product deformation is improved by 10% compared with the thread trimmer used for traditional twist needles; the present application performs shearing production on twist needles according to the above-mentioned embodiments, and the product qualification rate is improved by more than 8% compared with the product qualification rate of the thread trimmer used for traditional twist needles, and the present application has significant technical progress compared with the shearing and subsequent shaping processing of twist needles by the thread trimmer used for traditional twist needles; the present application uses a wire straightening component, a shearing component in conjunction with a clamping component and a blanking component, which can meet the requirement of flattening the sheared end face of the twist needle and automatically straighten the sheared twist needle at the same time, thereby realizing automated shearing production; it can effectively solve the problem that the products sheared by the existing twist needle thread trimmers are loose and of different lengths, which affects the quality and production efficiency of the products.

[0037] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic thread trimming machine for twist needles, comprising a frame and a workbench arranged on the frame, wherein a conveying device and a shearing device are arranged on the workbench, and characterized in that: The conveying device comprises a wire unwinding mechanism (1), a wire straightening component (2), a wire pulling component (3) and a buffer component (4), wherein the wire straightening component (2) and the wire pulling component (3) are arranged in a straight line on a support plate along the direction of the twist needle, and the shearing device comprises a wire feeding component (5) and a shearing component (6), wherein the wire feeding component (5) is arranged on one side of the feeding end of the shearing component (6), and the shearing component (6) comprises a fixed cutting knife (61) and a movable cutting knife (62) slidably matched with the fixed cutting knife (61), and a twist needle perforation is provided on the fixed cutting knife (61), and a clamping component is provided at the discharge end of the twist needle perforation, wherein the clamping component comprises a left clamping seat (7) and a right clamping seat (8), and a left clamping seat (7) and a right clamping seat (8). An upper clamping member (9) and a lower clamping member (10) are embedded on opposite sides of the seat (8); the left clamping seat (7) and the right clamping seat (8) are connected by a slide groove member (11) to form a shearing zone (12); the movable cutter (62) is placed in the shearing zone (12) and is arranged to fit the side of the left clamping seat (7) relative to the right clamping seat (8); the left clamping seat (7) and the right clamping seat (8) are both provided with a guide hole for the twist needle to pass through; the upper clamping member (9) and the lower clamping member (10) are provided with a clamping opening (13) on opposite sides to connect them to form a clamping hole; the clamping opening (13) is provided with a rubber pad (14); and a buffer pad layer (15) is also provided between the rubber pad (14) and the clamping opening (13).

2. The automatic twist needle thread trimmer according to claim 1, characterized in that: The slide member (11) is composed of two slide blocks (111), and a limit buffer platform (112) is provided at the lower end of the slide member (11) corresponding to the movable cutter (62), so that the horizontal height of the bottom end of the shearing area (12) is higher than the horizontal height of the top end of the limit buffer platform (112).

3. The automatic twist needle thread trimmer according to claim 1, characterized in that: The shearing device is further provided with a blanking member (16) for straightening the deformation of the twisted needle, and the blanking member (16) is arranged on one side corresponding to the discharge end of the shearing member (6).

4. The automatic twist needle thread trimmer according to claim 3, characterized in that: The material discharging component (16) comprises a shell (161) and a receiving platform (162) arranged in the shell (161); a mounting plate (163) is symmetrically arranged at the upper end of the receiving platform (162) along the material discharging transmission direction of the twist needle to form a straightening groove (164); and a material discharging straightening component (165) is arranged in the straightening groove (164); the material discharging straightening component (165) comprises a straightening wheel mounting member in the shape of a comb tooth; the straightening wheel mounting member is connected to the straightening groove (164) through a bearing seat; a straightening wheel is arranged at the end of each comb tooth of the straightening wheel mounting member; and the straightening wheels on the straightening wheel mounting member in the straightening groove (164) are arranged in an alternating manner to form a straightening channel; and a connecting member for driving the straightening wheel to rotate is arranged at the end of the straightening wheel mounting member; the feeding end of the material discharging component (16) is also connected to a material guide groove (17); and a plurality of material guide wheels (18) are arranged in the material guide groove (17).

5. The automatic twist needle thread trimmer according to claim 4, characterized in that: The guide wheels (18) comprise a plurality of upper guide wheels (18) and a plurality of lower guide wheels (18), wherein the gap height between the upper guide wheels (18) and the lower guide wheels (18) is the same as the height of the straightening channel and is located on the same horizontal plane, so that a feeding straightening channel (19) is formed.

6. The automatic twist needle thread trimmer according to claim 1, characterized in that: The lower clamping member (10) on the left clamping seat (7) is fixedly connected thereto, and the upper clamping member (9) is connected to the left clamping seat (7) via a driving slide, the diameter of the clamping hole is smaller than the diameter of the guide hole, and the center of the clamping hole and the center of the guide hole are in the same horizontal plane, and the side of the clamping hole on the left clamping seat (7) close to the movable cutter (62) and the side of the left clamping seat (7) close to the movable cutter (62) are in the same vertical plane.

7. The automatic twist needle thread trimmer according to claim 1, characterized in that: The lower clamping member (10) on the right clamping seat (8) is fixedly connected thereto, and the upper clamping member (9) is connected to the right clamping seat (8) via a driving slide, the diameter of the clamping hole is smaller than the diameter of the guide hole, and the center of the clamping hole and the center of the guide hole are in the same horizontal plane.

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