Fishbone-shaped barb line forming die and processing equipment

Abstract

The utility model relates to a fishbone-shaped barb line forming mould and processing equipment, the forming mould comprises a mould frame body and a forming device arranged on the mould frame body, the forming device comprises a downward pressing mechanism, an upper mould plate, a guide block and a lower mould plate which are sequentially arranged from top to bottom, the downward pressing mechanism is connected with the upper mould plate, and the guide block is connected with the lower mould plate. An elastic piece is arranged between the guide block and the upper mold plate, an upper mold core is arranged on the guide block, a lower mold core is arranged on the lower mold plate, the position of the lower mold core corresponds to the position of the upper mold core in an up-and-down mode, and the forming cutter is arranged on the upper mold plate and penetrates through the guide block and the upper mold core. A forming knife edge is formed in the lower die core, an upper flattening forming groove is formed in the lower surface of the upper die core, and a lower flattening forming groove is formed in the upper surface of the lower die core. According to the utility model, a round wire is processed into a flat wire, and automatic processing of a fishbone-shaped barb wire can be realized.

Description

Technical Field

[0001] This utility model relates to a suture processing equipment, specifically a fishbone-shaped barbed suture forming mold and processing equipment. Background Technology

[0002] Chinese patent CN210262165U discloses a suture barb imprinting machine, which uses an imprinting mold to cut off a portion of the material from the suture to form barbs, enabling mass production of fishbone-style sutures, reducing costs, and improving production flexibility and ease of use. This equipment creates the barb structure by cutting off a portion of the material from a suture with a circular cross-section. However, in addition to sutures with a circular cross-section, clinical practice also requires sutures with a flat cross-section and barbs, which this equipment cannot process from circular suture material. Utility Model Content

[0003] The purpose of this invention is to provide a fishbone-shaped barbed thread forming mold and processing equipment to solve the problem that existing equipment cannot process flat-section barbed sutures from round wires.

[0004] This utility model is implemented as follows: A fishbone-shaped barb forming mold includes a mold frame and a forming device disposed on the mold frame. The forming device includes a pressing mechanism, an upper template, a guide block, and a lower template arranged sequentially from top to bottom. The pressing mechanism is connected to the upper template. An elastic element is disposed between the guide block and the upper template. An upper mold core is disposed on the guide block, and a lower mold core is disposed on the lower template. The lower mold core and the upper mold core are vertically corresponding. A forming cutter is disposed on the upper template and passes through the guide block and the upper mold core. A forming cutter is provided on the lower mold core. An upper flattening forming groove is provided on the lower surface of the upper mold core, and a lower flattening forming groove is provided on the upper surface of the lower mold core.

[0005] Furthermore, a guide wire device is provided on both the front and rear sides of the lower mold core. The guide wire device includes a guide wire roller and a roller frame. The guide wire roller is axially connected to the roller frame. A guide wire groove is formed on the guide wire roller. The guide wire groove corresponds to the lower flattening forming groove. An installation hole is provided on the lower template. The roller frame is elastically telescopically disposed in the installation hole. In its natural state, the height of the guide wire roller is higher than the upper surface of the lower mold core.

[0006] Furthermore, there are two molding devices, which are arranged side by side, one in front of the other.

[0007] Furthermore, a pressure roller is provided on the lower template, and the pressure roller is located between the two forming devices.

[0008] Furthermore, the forming blades of the two forming devices are arranged symmetrically to each other, and the forming blade edges of the two forming devices are arranged symmetrically to each other.

[0009] Furthermore, a core hole is provided on the lower template, and the lower core is elastically and telescopically installed in the core hole. In its natural state, the upper surface of the lower core is higher than the upper surface of the lower template. A wire groove is provided on the upper surface of the lower template, and the wire groove corresponds to the lower flattening forming groove.

[0010] Furthermore, an inlet guide mechanism and an outlet guide mechanism are respectively provided on the front and rear sides of the mold frame.

[0011] This utility model also discloses a fishbone-shaped barbed wire processing equipment, including a frame, a wire feeding device, a wire delivery device, a fishbone-shaped barbed wire forming mold, and a wire pulling device, wherein the fishbone-shaped barbed wire forming mold is as described above.

[0012] Furthermore, a flattening device is provided between the wire feeding device and the fishbone-shaped barbed wire forming mold. The flattening device includes a fixed frame and an adjusting frame. Extrusion rollers are respectively shafted on the fixed frame and the adjusting frame. The two extrusion rollers are arranged vertically. The adjusting frame is driven to move up and down by an adjusting mechanism, so that the two extrusion rollers move closer to each other or further away from each other. The extrusion rollers are driven to rotate by an extrusion drive mechanism.

[0013] Furthermore, a wire tensioner is provided before the wire feeding device, and a cutting device is provided after the wire pulling device.

[0014] This utility model discloses a fishbone-shaped barbed thread forming mold. An upper flattening forming groove and a lower flattening forming groove are respectively formed on the upper and lower mold cores. The thread moves stepwise between the upper and lower mold cores. When the guide block and the lower mold plate close, the thread located in the forming groove is flattened and formed. When the upper mold plate closes downwards, it drives a forming blade to extend from the lower end face of the upper mold core to remove a portion of the material from the thread. As the thread moves forward, the fishbone-shaped barbed thread forming mold flattens and removes the corresponding material, thus obtaining a flat stitched thread.

[0015] By using different shaped forming blades and forming blade edges, and through the coordination of thread movement and the pressing or material removal action of the forming mold, sutures with different barb shapes can be obtained; by symmetrically setting the forming blades of two forming devices, barbs in opposite directions can be obtained on the suture; by using upper and lower flattening forming grooves of different shapes, sutures with different cross-sectional shapes can be obtained.

[0016] This utility model discloses a herringbone-shaped barbed thread processing equipment. Through automatic thread feeding, delivery, and pulling, combined with a herringbone-shaped barbed thread forming mold, it can automatically process suture threads. For round threads with higher stiffness, they can be flattened by a flattening device before entering the herringbone-shaped barbed thread forming mold, and then formed. The tension of the thread is detected by a thread tensioner, and the thread feeding speed of the feeding device is adjusted accordingly. After the shaped thread is output, it is cut by a cutting device to obtain the finished suture thread.

[0017] This invention can process round wires into flat wires, enabling the automatic processing of fishbone-shaped barbed wires. Attached Figure Description

[0018] Figure 1 This is a structural diagram of the fishbone-shaped barbed wire processing equipment of this utility model.

[0019] Figure 2 This is a structural diagram of the fishbone-shaped barbed wire forming mold of this utility model.

[0020] Figure 3 This is a structural diagram of the template and guide block of this utility model.

[0021] Figure 4 This is a structural diagram of the lower template of this utility model.

[0022] Figure 5 This is a structural diagram of the flattening device of this utility model.

[0023] Figures 6-9 These are structural diagrams of four types of sutures that can be obtained using this invention.

[0024] In the diagram: 1. Frame; 2. Fishbone-shaped barbed wire forming mold; 3. Wire feeding device; 4. Wire tensioner; 5. Flattening device; 6. Wire feeding device; 7. Wire pulling device; 8. Cutting device; 9. Microscope observation device; 2-1. Mold frame; 2-2. Pressing mechanism; 2-3. Upper template; 2-4. Guide block; 2-5. Lower template; 2-6. Upper mold core; 2-7. Forming blade; 2-8. Lower mold core; 2-9. Wire guiding device; 2-10. Pressing connecting plate; 2-11. Elastic element; 2-12. Wire inlet guiding mechanism; 2-13. Wire outlet guiding mechanism ; 2-14, Guide hole; 2-15, Guide post; 2-1-1, Top plate of frame; 2-1-2, Bottom plate of frame; 2-1-3, Frame upright; 2-5-1, Pressing roller; 2-5-2, Wire guide groove; 2-6-1, Upper flattening forming groove; 2-8-1, Lower flattening forming groove; 2-8-2, Forming blade; 2-9-1, Mounting hole; 2-9-2, Roller frame; 2-9-3, Wire guide roller; 2-9-4, Wire guide groove; 5-1, Fixing frame; 5-2, Adjusting frame; 5-3, Adjusting mechanism; 5-4, Extrusion drive mechanism; 5-5, Extrusion wheel. Detailed Implementation

[0025] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0027] Example 1

[0028] This embodiment is a fishbone-shaped barbed wire forming mold 2, the structure of which mainly includes a mold frame 2-1 and a forming device.

[0029] The mold frame 2-1 includes a top plate 2-1-1, a bottom plate 2-1-2, and uprights 2-1-3. The top plate 2-1-1 and the bottom plate 2-1-2 are connected and fixed by several uprights.

[0030] The forming device specifically includes a pressing mechanism 2-2, an upper template 2-3, a guide block 2-4, and a lower template 2-5 arranged sequentially from top to bottom. The pressing mechanism 2-2 is installed on the top plate 2-1-1 of the frame. The upper template 2-3, the guide block 2-4, and the lower template 2-5 are located between the top plate 2-1-1 and the bottom plate 2-1-2 of the frame. The upper template 2-3 is directly or indirectly connected to the pressing mechanism 2-2, and the lower template 2-5 is directly or indirectly fixedly installed on the bottom plate 2-1-2 of the frame. Several downwardly extending guide posts 2-15 are provided on the guide block 2-4. The guide posts 2-15 are inserted into the corresponding guide holes 2-14 on the lower template 2-5. Several elastic elements 2-11 are provided between the upper template 2-3 and the guide block 2-4. An upper mold core 2-6 is provided on the guide block 2-4. A forming blade 2-7 is installed on the upper template 2-3, and the forming blade 2-7 passes downward through the guide block 2-4 and the upper mold core 2-6. The lower end face of the upper mold core 2-6 slightly protrudes from the lower surface of the upper template 2-3. The length of the forming blade 2-7 is greater than the overall thickness of the guide block 2-4 and the upper mold core 2-6. A lower mold core 2-8 is provided on the lower template 2-5, and a forming blade edge 2-8-2 is provided on the lower mold core 2-8. The lower die core 2-8 and the upper die core 2-6 are positioned vertically corresponding, and the forming cutter 2-8-2 and the forming cutter 2-7 are positioned corresponding. An upper flattening forming groove 2-6-1 is provided on the lower surface of the upper die core 2-6, and a lower flattening forming groove 2-8-1 is provided on the upper surface of the lower die core 2-8. The length direction of the upper flattening forming groove 2-6-1 and the lower flattening forming groove 2-8-1 is consistent with the forward movement direction of the wire. The lower flattening forming groove 2-8-1 passes through the forming cutter 2-8-2. When the upper die core 2-6 and the lower die core 2-8 come into contact with each other, the upper flattening forming groove 2-6-1 and the lower flattening forming groove 2-8-1 are aligned to form a forming groove. The width of this forming groove is greater than its height, which can flatten the round wire located in the forming groove.

[0031] The pressing mechanism 2-2 can be an electric cylinder, a pneumatic cylinder, or a hydraulic cylinder, etc.

[0032] In this embodiment, an electric cylinder is used as an example. The electric cylinder is fixed on the upper surface of the top plate 2-1-1 of the frame. The cylinder shaft of the electric cylinder passes downward through the top plate 2-1-1 of the frame. A pressing connecting plate 2-10 is provided on the upper template 2-3. A trapezoidal groove is opened on the pressing connecting plate 2-10. The end of the cylinder shaft of the electric cylinder is connected to the trapezoidal groove. The upper template 2-3 can be driven to move up and down by the up and down extension and retraction of the electric cylinder.

[0033] When the upper template 2-3 moves downward, the guide block 2-4 is first pressed down by the elastic element 2-11, causing the upper mold core 2-6 to contact the lower mold core 2-8. For the wire located in the flattening forming groove 2-8-1 behind the forming cutter 2-8-2, the engagement of the upper flattening forming groove 2-6-1 and the lower flattening forming groove 2-8-1 extrudes and shapes this part of the wire, resulting in a flat wire. When the upper template 2-3 continues to move downward, the upper template 2-3 compresses the elastic element 2-11, driving the forming cutter 2-7 to extend downward from the upper mold core 2-6. The downward-extending part of the forming cutter 2-7 cuts off the wire at the forming cutter 2-8-2, creating a barb structure on the wire. During the forward movement of the wire, in conjunction with the downward pressing distance of the upper template 2-3, the parts of the wire that need to be flattened are flattened, and the parts of the wire that need to be cut to form barbs are cut off. This allows for processing as needed, offering high flexibility.

[0034] A guide roller device 2-9 is provided on both the front and rear sides of the lower mold core 2-8. The guide roller device 2-9 includes a guide roller 2-9-3 and a roller frame 2-9-2. A mounting hole 2-9-1 is provided on the lower template 2-5. The roller frame 2-9-2 is elastically telescopically disposed in the mounting hole 2-9-1. The guide roller 2-9-3 is axially connected to the roller frame 2-9-2. A guide roller groove 2-9-4 is provided on the guide roller 2-9-3, which corresponds to the lower flattening forming groove 2-8-1. Specifically, an elastic structure such as a spring can be provided in the mounting hole 2-9-1. The lower end of the roller frame 2-9-2 contacts the elastic structure. In its natural state, the height of the guide roller 2-9-3 is higher than the upper surface of the lower mold core 2-8. When subjected to downward pressure, it can compress the elastic structure downward. The wire passes above the two wire-supporting devices 2-9 and is located within the wire-supporting groove 2-9-4. The wire-supporting devices 2-9 support the lower mold core 2-8. When the upper mold plate 2-3 moves down close to the lower mold plate 2-5, the upper mold plate 2-3 contacts the wire-supporting roller 2-9-3 and presses it down, allowing the wire to enter the lower flattening forming groove 2-8-1. After completing one flattening or cutting process, the upper mold plate 2-3 moves upward, and the wire-supporting roller 2-9-3 resets upward, lifting the wire again and allowing it to leave the lower flattening forming groove 2-8-1. This facilitates the movement of the wire and avoids deformation or breakage caused by the large friction force when the wire moves within the lower flattening forming groove 2-8-1.

[0035] The forming device can be one, two, or more as needed. The shape, orientation, etc. of the forming blades 2-7 installed on the multiple forming devices can be determined as needed.

[0036] In this embodiment, there are two forming devices. The forming blades 2-7 installed on the two forming devices are the same in shape but opposite in direction. The forming blades 2-7 of the two forming devices are symmetrically arranged. The forming blade edges 2-8-2 of the two forming devices are symmetrically arranged. One forming device is used to process barbs in the forward direction, and the other forming device is used to process barbs in the backward direction. The final suture produced has barbs in two different directions.

[0037] A pressure roller 2-5-1 is provided on the lower template 2-5. The pressure roller 2-5-1 is located between the two forming devices and presses down the wire between the two forming devices.

[0038] A base plate is provided on the frame base plate 2-1-2, and the lower template 2-5 is installed on the base plate.

[0039] A core hole is provided on the lower template 2-5. The lower core 2-8 is elastically and telescopically installed in the core hole. Springs and other elastic components can be installed in the core hole. The bottom of the lower core 2-8 is in contact with the elastic component. In its natural state, the upper surface of the lower core 2-8 is higher than the upper surface of the lower template 2-5. A wire groove 2-5-2 is provided on the upper surface of the lower template 2-5. The wire groove 2-5-2 corresponds to the lower flattening forming groove 2-8-1. When the upper core 2-6 contacts and presses down the lower core 2-8, the upper surface of the lower core 2-8 is made flush with the upper surface of the lower template 2-5. The lower flattening forming groove 2-8-1 and the wire groove 2-5-2 are interconnected.

[0040] To ensure the accuracy of the wire position, an infeed guide mechanism 2-12 and an outfeed guide mechanism 2-13 are respectively provided on the front and rear sides of the mold frame 2-1. The infeed guide mechanism 2-12 includes at least one guide roller, and the outfeed guide mechanism 2-13 includes at least one guide roller. Guide grooves are formed on the guide rollers, and the wire is located in the guide grooves. The position of the wire is restricted by the guide rollers on the front and rear sides.

[0041] Example 2

[0042] This embodiment is a fishbone-shaped barbed wire processing equipment, including a frame 1, a wire feeding device 3, a wire delivery device 6, a fishbone-shaped barbed wire forming mold 2, and a wire pulling device 7. The structure of the fishbone-shaped barbed wire forming mold 2 is detailed in Embodiment 1.

[0043] The wire feeding device 3, the wire delivery device 6, and the wire pulling device 7 are conventional technologies commonly used in this field. They can achieve automatic wire feeding and control the moving speed of the wire. When used with the fishbone-shaped barbed wire forming mold 2, the automatic processing of fishbone-shaped barbed wire can be realized.

[0044] The above structure enables the flattening and removal of wires with low hardness.

[0045] For wires with high hardness, a flattening device 5 is also provided between the wire feeding device 3 and the fishbone-shaped barbed wire forming mold 2. The wire is pre-flattened by the flattening device 5, and then the pre-flattened wire enters the fishbone-shaped barbed wire forming mold 2 for subsequent processing.

[0046] The flattening device 5 includes a fixed frame 5-1 and an adjusting frame 5-2. Extrusion wheels 5-5 are respectively shafted on the fixed frame 5-1 and the adjusting frame 5-2. The two extrusion wheels 5-5 are arranged vertically. The adjusting frame 5-2 is driven to move up and down by the adjusting mechanism 5-3, so that the two extrusion wheels 5-5 are closer to each other or further away from each other. The extrusion wheels 5-5 are driven to rotate by the extrusion drive mechanism 5-4.

[0047] A guide post is installed on the fixed frame 5-1, passing through the adjusting frame 5-2. The adjusting mechanism 5-3 drives a motor mounted on the frame 1, with a lead screw connected to the motor shaft. A nut is installed on the adjusting frame 5-2, and the lead screw and nut are connected. The rotation of the motor drives the adjusting frame 5-2 to move up and down along the guide post, thus moving the two extrusion rollers 5-5 closer or further apart. The extrusion drive mechanism 5-4 can specifically be a motor, connected to the shaft of one of the extrusion rollers 5-5, which drives the extrusion roller 5-5 to rotate. Gears can be installed on the shafts of the two extrusion rollers 5-5 respectively. The meshing of the two gears achieves synchronous rotation of the two extrusion rollers 5-5. Since the movement distance of the two extrusion rollers 5-5 is very small, the two gears will remain meshed during the adjustment process and will not disengage. The lead screw also only needs to be of a short length.

[0048] A thread tensioner 4 is installed before the thread feeding device 6. The tensioner 4 and the thread feeding device 3 detect the tension of the thread, thereby controlling the thread feeding speed of the thread feeding device 3. A cutting device 8 is installed after the thread pulling device 7. After the processed suture is output by the thread pulling device 7, the suture is cut by the cutting device 8 as needed to obtain the suture of the required length.

[0049] A microscope observation device 9 can also be set in front of the suture pulling device 7 to observe the processed suture through the lens and display it on the screen so as to observe whether the processing of the suture meets the requirements.

[0050] This invention can use different shaped forming blades 2-7 and forming blade edges 2-8-2 as needed. By coordinating the movement of the thread and the pressing or material removal action of the forming mold, sutures with different barb shapes can be obtained.

[0051] This invention can obtain stitching lines with different cross-sectional shapes by using upper flattening forming grooves 2-6-1 and lower flattening forming grooves 2-8-1 of different shapes.

[0052] like Figures 6-9 The diagram shows several suture structures that can be obtained using this invention.

[0053] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fishbone-shaped barbed wire forming mold, characterized in that, The device includes a mold frame and a forming device mounted on the mold frame. The forming device includes a pressing mechanism, an upper template, a guide block, and a lower template arranged sequentially from top to bottom. The pressing mechanism is connected to the upper template. An elastic element is provided between the guide block and the upper template. An upper mold core is provided on the guide block, and a lower mold core is provided on the lower template. The lower mold core and the upper mold core are vertically corresponding. A forming cutter is provided on the upper template and passes through the guide block and the upper mold core. A forming cutter is provided on the lower mold core. An upper flattening forming groove is provided on the lower surface of the upper mold core, and a lower flattening forming groove is provided on the upper surface of the lower mold core.

2. The fishbone-shaped barb forming mold according to claim 1, characterized in that, A guide roller device is provided on both the front and rear sides of the lower mold core. The guide roller device includes a guide roller and a roller frame. The guide roller is axially connected to the roller frame. A guide roller groove is formed on the guide roller. The guide roller groove corresponds to the lower flattening forming groove. An installation hole is provided on the lower mold plate. The roller frame is elastically telescopically disposed in the installation hole. In its natural state, the height of the guide roller is higher than the upper surface of the lower mold core.

3. The fishbone-shaped barbed wire forming mold according to claim 1, characterized in that, There are two molding devices, which are arranged side by side, one in front of the other.

4. The fishbone-shaped barbed wire forming mold according to claim 3, characterized in that, A pressure roller is provided on the lower template, and the pressure roller is located between the two forming devices.

5. The fishbone-shaped barb forming mold according to claim 3, characterized in that, The forming blades of the two forming devices are arranged symmetrically to each other, and the forming blade edges of the two forming devices are arranged symmetrically to each other.

6. The fishbone-shaped barb forming mold according to claim 1, characterized in that, A core hole is provided on the lower template. The lower core is elastically and telescopically installed in the core hole. In its natural state, the upper surface of the lower core is higher than the upper surface of the lower template. A wire groove is provided on the upper surface of the lower template, and the wire groove corresponds to the lower flattening forming groove.

7. The fishbone-shaped barb forming mold according to claim 1, characterized in that, An infeed guiding mechanism and an outfeed guiding mechanism are respectively provided on the front and rear sides of the mold frame.

8. A processing device for fishbone-shaped barbed wire, characterized in that, It includes a frame, a wire feeding device, a wire delivery device, a fishbone-shaped barbed wire forming mold, and a wire pulling device, wherein the fishbone-shaped barbed wire forming mold is as described in any one of claims 1 to 7.

9. The fishbone-shaped barbed wire processing equipment according to claim 8, characterized in that, A flattening device is also provided between the wire feeding device and the fishbone-shaped barbed wire forming mold. The flattening device includes a fixed frame and an adjusting frame. Extrusion rollers are respectively shafted on the fixed frame and the adjusting frame. The two extrusion rollers are arranged vertically. The adjusting frame is driven to move up and down by the adjusting mechanism, so that the two extrusion rollers move closer or further away from each other. The extrusion rollers are driven to rotate by the extrusion driving mechanism.

10. The fishbone-shaped barbed wire processing equipment according to claim 8, characterized in that, A wire tensioner is installed before the wire feeding device, and a shearing device is installed after the wire pulling device.

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