Needle tube winding and fine-drawing equipment

Abstract

The utility model provides needle tube winding and fine-drawing equipment which comprises a needle tube pulling-out storage rotating frame, a needle tube collecting rotating frame, a working table, a rotary winding device, an extrusion fine-drawing execution seat and a tightening device, the needle tube pulling-out storage rotating frame is located on one side of the working table, and the needle tube collecting rotating frame is located on the other side of the working table. A first rotation driving mechanism is connected to a collection part in the needle tube collection rotating frame; the rotary winding device comprises a second rotary driving mechanism, a first winding wheel and a second winding wheel, the second rotary driving mechanism is installed on the installation frame, the tightening device comprises a fixing frame and a tightening assembly, the fixing frame is connected with the end, close to the needle tube collecting rotary frame, of the workbench, and the tightening assembly is connected with the fixing frame. The end, close to the needle tube collecting rotating frame, of the fixing frame is movably connected with the tightening assembly. The needle tube winding and fine-drawing equipment solves the problem that in the prior art, due to the fact that no tightening assembly exists, a needle tube to be fine-drawn freely moves on the winding wheel.

Description

Technical Field

[0001] The utility model relates to a needle tube winding and thinning device, in particular to a needle tube winding and thinning device. Background Art

[0002] During the needle tube production process, the needle tubes in the initial state are of different thicknesses, and a specific processing process is required to reduce the diameter of the needle tubes and at the same time pull the needle tubes into fine and uniform needle tubes to facilitate subsequent processing and use.

[0003] The needle tube winding and thinning equipment in the prior art includes: a needle tube storage rack, a workbench and a thinning mechanism. The thinning mechanism includes a servo motor and a rotary winding device. There are two thinning mechanisms and they are respectively located at both ends of the workbench. The needle tube is wound on the expansion disk, and the needle tube wound on the winding wheel in the rotary winding device is thinned by the difference in rotation speed of the two servo motors. There is no tensioning component between the rotary winding device and the needle tube storage rack, which makes it difficult to tighten the needle tube to be thinned, causing the winding part of the needle tube to be thinned to move relative to the winding wheel, that is, the original winding part of the needle tube to be thinned is not in the specified position of the winding wheel, causing the needle tube to be thinned after being wound on the winding wheel for multiple turns to be disordered, and even causing the needle tube to be thinned to be broken when being pulled out continuously. Utility Model Content

[0004] The utility model aims to provide a needle tube winding and thinning device, which solves the problem in the prior art that the needle tube to be thinned moves randomly on the winding wheel due to the lack of a tensioning component.

[0005] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: The present invention provides a needle winding and thinning device, comprising: a needle pulling and storing rotating frame, a needle collecting rotating frame, a workbench, a rotary winding device, a thinning actuator seat and a tensioning device.

[0006] The needle tube pulling out and storing rotating rack is located on one side of the workbench, and the needle tube collecting rotating rack is located on the other side of the workbench. The collection position of the needle tube collecting rotating rack is connected to the first rotating drive mechanism;

[0007] The workbench includes: a top plate and four supporting legs. Four supporting legs are installed at the four corners of the top plate, and a mounting frame is provided under the top plate.

[0008] The rotary winding device includes: a second rotary drive mechanism, a first winding wheel, and a second winding wheel, wherein the second rotary drive mechanism is mounted on a mounting frame, a first output end of the second rotary drive mechanism is connected to the first winding wheel through a workbench top plate, and a second output end of the second rotary drive mechanism is connected to the second winding wheel through a workbench top plate;

[0009] An extrusion fine execution seat is installed between the first winding wheel and the second winding wheel, and the second winding wheel is located between the extrusion fine execution seat and the needle tube collection rotating frame;

[0010] The tightening device includes: a fixed frame and a tightening assembly. The fixed frame is connected to one end of the workbench close to the needle tube collection rotating frame. The fixed frame is movably connected to the tightening assembly at one end close to the needle tube collection rotating frame. The tightening assembly is used to tighten the needle tube section between the needle tube collection rotating frame and the first winding wheel.

[0011] Preferably, two fixed plates are connected between the two supporting feet of the workbench near one end of the needle tube collection rotating frame, and a mounting plate is provided between the two fixed plates. The fixed frame includes: a support frame and a limit frame. The mounting end of the support frame is slidably connected to the two fixed plates. A splint protrudes in the X direction at one end of the support frame near the needle tube collection rotating frame. The splint is hinged to the tensioning assembly. A limit frame that can move in the Z direction is installed on the support frame. A spring is installed between the limit frame and the support frame. The limit frame is used to limit the rotation of the tensioning assembly and the splint, and to limit the sliding of the support frame relative to the fixed plate.

[0012] Preferably, the limit frame includes: a frame body, a positioning tooth, a rack and a limit rod. The frame body is installed on the support frame and can move in the Z direction relative to the mounting frame. The frame body is fixed with a positioning tooth, and a rack located in the X direction is installed on the mounting plate. The positioning tooth can engage with the rack. The frame body is also fixed with a limit rod, which is used to limit the rotation of the tensioning assembly relative to the splint.

[0013] Preferably, the tensioning assembly includes: a rotating arm, a guide rod and a guide head. A limiting gear is fixed to the top surface of one end of the rotating arm near the splint, the limiting gear is for the limiting rod to be engaged, the rotating arm is hinged to the splint through a hinge shaft, the other end of the rotating arm is passed through by the guide rod, and a guide head is provided on the top of the guide rod for the needle tube to bypass.

[0014] Preferably, the middle of the guide head is recessed to form a guide groove for the needle tube to pass around.

[0015] Preferably, two mounting grooves are provided on the top plate, the two mounting grooves are located between the rotating wheels, the extrusion fine execution seat includes a first orifice plate and a second orifice plate, the two mounting grooves are respectively provided with a first orifice plate and a second orifice plate, the first orifice plate and the second orifice plate are arranged in the X direction, and the first orifice plate and the second orifice plate are both provided with at least two extrusion holes for the needle tube to pass through.

[0016] Preferably, the extrusion hole is a trumpet structure, the diameter of the extrusion hole penetration is larger than the diameter of the extrusion hole penetration, the diameter of the extrusion hole penetration is larger than the outer diameter of the needle tube when not extruded, and the diameter of the extrusion hole penetration is smaller than the outer diameter of the needle tube when not extruded.

[0017] Preferably, a thread groove is provided on the side surface of the rotating wheel, and the thread groove is used to guide the winding of the needle tube.

[0018] Compared with the prior art, the utility model has the following beneficial effects: the needle tube winding and thinning equipment adopts a workbench set between the needle tube pulling out and storing rotating frame and the needle tube collecting rotating frame, and the workbench is equipped with a rotary winding device, a squeezing and thinning execution seat and a tightening device. The rotary winding device pulls the needle tube out of the needle tube pulling out and storing rotating frame, and the needle tube is squeezed and thinned through the extrusion hole on the squeezing and thinning execution seat, and then the needle tube is tightened by the tightening component and transferred to the needle tube collecting rotating frame, so that the needle tube to be thinned can be tightened by adjusting the position of the tightening component, so that the needle tube to be thinned will not move at will after being wound on the first winding wheel and the second winding wheel for many times, so as to avoid the needle tube to be thinned from moving around. The first winding wheel and the second winding wheel move randomly, causing the needle tube to be pulled thin to become tangled, ensuring that the needle tube to be pulled thin can be continuously pulled out later. This design can wind the needle tube to be pulled thin multiple times on the first winding wheel and the second winding wheel through the extrusion hole on the extrusion execution seat, and then pass through the extrusion execution seat multiple times to achieve multiple compression, thereby achieving the purpose of pulling the needle tube to be pulled thin to a very thin state. The tensioning component achieves the purpose of tightening the needle tube to be pulled thin, so as to maintain the purpose of manually adjusting the specified position of the needle tube to be pulled thin on the first winding wheel and the second winding wheel, avoiding the needle tube to be pulled thin from being disordered and knotted and pulled apart, ensuring that the needle tube to be pulled thin can be continuously pulled out, thereby achieving continuous pulling of the needle tube to be pulled thin.

[0019] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 Schematic diagram of the needle winding and thinning equipment.

[0021] Figure 2 Schematic diagram of the tensioning device.

[0022] Figure numerals: needle tube pulling out storage rotating frame 1, needle tube collecting rotating frame 2, first rotary drive mechanism 21, workbench 3, top plate 31, mounting groove 311, supporting foot 32, mounting frame 33, fixing plate 34, mounting plate 35, rotary winding device 4, second rotary drive mechanism 41, first winding wheel 42, threaded groove 421, second winding wheel 43, extrusion fine execution seat 5, first orifice plate 51, second orifice plate 52, extrusion hole 53, through-port 531, through-port 532, tensioning device 6, fixing frame 61, supporting frame 611, splint 6111, limiting frame 612, frame body 6121, positioning tooth 6122, rack 6123, limiting rod 6124, spring 613, tensioning assembly 62, rotating arm 621, guide rod 622, guide head 623, guide groove 624, limiting gear 625. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and functions of the present invention clearer and easier to understand, the present invention is further described below with reference to the accompanying drawings and specific embodiments:

[0024] like Figures 1 to 2 As shown, the utility model proposes a needle tube winding and thinning equipment, including: a needle tube pulling out and storing rotating frame 1, a needle tube collecting rotating frame 2, a workbench 3, a rotary winding device 4, a thinning execution seat 5 and a tensioning device 6. The needle tube pulling out and storing rotating frame 1 is located on one side of the workbench 3, and the needle tube collecting rotating frame 2 is located on the other side of the workbench 3. The collection point of the needle tube collecting rotating frame 2 is connected to a first rotary driving mechanism 21; the workbench 3 includes: a top plate 31 and four supporting legs 32, four supporting legs 32 are respectively installed at the four corners of the top plate 31, and a mounting bracket 33 is provided under the top plate 31; the rotary winding device 4 includes: a second rotary driving mechanism 41, a first winding wheel 42 and a second winding wheel 43, and the second rotary driving mechanism 41 is installed on the mounting bracket 33. On the mounting frame 33, the first output end of the second rotary drive mechanism 41 passes through the top plate 31 of the workbench 3 and is connected to the first winding wheel 42, and the second output end of the second rotary drive mechanism 41 passes through the top plate 31 of the workbench 3 and is connected to the second winding wheel 43; an extrusion fine execution seat 5 is installed between the first winding wheel 42 and the second winding wheel 43, and the second winding wheel 43 is located between the extrusion fine execution seat 5 and the needle tube collection rotating frame 2; the tightening device 6 includes: a fixed frame 61 and a tightening assembly 62, the fixed frame 61 is connected to one end of the workbench 3 close to the needle tube collection rotating frame 2, and the fixed frame 61 is movably connected to the tightening assembly 62 at one end close to the needle tube collection rotating frame 2, and the tightening assembly 62 is used to tighten the needle tube section between the needle tube collection rotating frame 2 and the first winding wheel 42. During use, the needle tube is pulled out from the needle tube storage rotating rack 1, passes through the first orifice plate 51 of the extrusion execution seat 5 and is wound around the winding wheel on the second output end of the second rotary drive mechanism 41, and the needle tube is initially squeezed and squeezed through the first orifice plate 51, and then passes through the second orifice plate 52 and is wound around the winding wheel on the first output end of the second rotary drive mechanism 41, and is squeezed and squeezed again through the second orifice plate 52, and then passes through the first orifice plate 51 and bypasses the tensioning assembly 62, and is finally wound around the needle tube collection rotating rack 2 to be squeezed and squeezed.

[0025] Two fixed plates 34 are connected between the two support legs 32 of the workbench 3 near one end of the needle collection rotating frame 2. A mounting plate 35 is provided between the two fixed plates 34. The fixed frame 61 includes a support frame 611 and a limit frame 612. The mounting end of the support frame 611 is slidably connected to the two fixed plates 34. A clamping plate 6111 protrudes in the X direction at the end of the support frame 611 near the needle collection rotating frame 2. The clamping plate 6111 is hingedly connected to the tensioning assembly 62. A limit frame 612 that can move in the Z direction is mounted on the support frame 611. A spring 613 is installed between the limit frame 612 and the support frame 611. The limit frame 612 is used to limit the rotation of the tensioning assembly 62 and the clamping plate 6111, and to limit the sliding of the support frame 611 relative to the fixed plate 34. When the needle to be pulled passes around the tensioning assembly 62, the tension of the needle to be pulled can be adjusted by adjusting the position of the support frame 611 on the fixed plate 34.

[0026] The limiting frame 612 includes: a frame body 6121, a positioning tooth 6122, a rack 6123 and a limiting rod 6124. The frame body 6121 is installed on the support frame 611. The frame body 6121 can move in the Z direction relative to the mounting frame 33. The positioning tooth 6122 is fixed on the frame body 6121, and the rack 6123 located in the X direction is installed on the mounting plate 35. The positioning tooth 6122 can engage with the rack 6123. The frame body 6121 is also fixed with a limiting rod 6124. The limiting rod 6124 is used to limit the rotation of the tensioning assembly 62 relative to the splint 6111. When the positioning teeth 6122 are engaged with the rack 6123, the support frame 611 and the limiting frame 612 are both relatively stable relative to the mounting plate 35. Adjusting the rotation angle of the tensioning assembly 62 also adjusts the tightness of the needle tube to be pulled, thereby increasing the range of adjustment for the tensioning assembly 62 and making it easier to adjust the tightness of the needle tube to be pulled before the entire device is operated. Adjusting a single limiting frame 612 allows both the mounting end of the support frame 611 to be positioned relative to the two fixing plates 34 and the tensioning assembly 62 to be positioned relative to the clamping plate 6111.

[0027] The tensioning assembly 62 comprises a rotating arm 621, a guide rod 622, and a guide head 623. A limit gear 625 is fixed to the top surface of one end of the rotating arm 621, near the clamping plate 6111. The limit gear 625 engages with a limit rod 6124. The rotating arm 621 is hinged to the clamping plate 6111 via a hinge axis. The other end of the rotating arm 621 is passed through by the guide rod 622. A guide head 623 is located on the top of the guide rod 622, allowing the needle to pass through. The position of the guide head 623 is adjusted by rotating the rotating arm 621. When the limit gear 625 engages with the limit rod 6124, the rotation angle of the rotating arm 621 is fixed.

[0028] The middle of the guide head 623 is recessed to form a guide groove 624 for the needle tube to bypass. When the needle tube bypasses the guide groove 624, it is prevented from moving up and down.

[0029] Two mounting slots 311 are defined in the top plate 31, located between the rotating wheels. The extrusion actuator 5 includes a first orifice plate 51 and a second orifice plate 52, each housed within the two mounting slots 311. The first orifice plate 51 and the second orifice plate 52 are aligned in the X-direction and each have at least two extrusion holes 53 for the needle to pass through. The first orifice plate 51 and the second orifice plate 52 cooperate to extrude the needle multiple times, achieving a uniform thickness after extrusion.

[0030] The extrusion hole 53 has a trumpet-shaped structure. The diameter of the inlet 531 of the extrusion hole 53 is larger than the diameter of the outlet 532 of the extrusion hole 53. The diameter of the inlet 531 of the extrusion hole 53 is larger than the outer diameter of the needle tube when it is not extruded, while the diameter of the outlet 532 of the extrusion hole 53 is smaller than the outer diameter of the needle tube when it is not extruded. The needle tube enters the extrusion hole 53 from the inlet 531 and is compressed and narrowed when it passes through the outlet 532.

[0031] The rotating wheel has a thread groove 421 on its side for guiding the needle tube to be wound. The thread groove 421 has the function of positioning the needle tube to be thinned. The needle tube to be thinned is wound on the thread groove 421 to prevent the needle tube from shifting up and down, so as to avoid tangling during the thinning process.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. Needle winding and thinning equipment, characterized in that: include: The needle tube pulling out storage rotating frame (1), the needle tube collecting rotating frame (2), the workbench (3), the rotary winding device (4), the extrusion fine execution seat (5) and the tightening device (6) are provided. The needle tube pulling out and storing rotating frame (1) is located on one side of the workbench (3), and the needle tube collecting rotating frame (2) is located on the other side of the workbench (3). The collection position of the needle tube collecting rotating frame (2) is connected to a first rotating drive mechanism (21); The workbench (3) comprises a top plate (31) and four supporting legs (32), wherein the four corners of the top plate (31) are respectively provided with four supporting legs (32), and a mounting frame (33) is provided below the top plate (31); The rotary winding device (4) comprises: a second rotary drive mechanism (41), a first winding wheel (42) and a second winding wheel (43); the second rotary drive mechanism (41) is mounted on a mounting frame (33); a first output end of the second rotary drive mechanism (41) passes through a top plate (31) of a workbench (3) and is connected to the first winding wheel (42); and a second output end of the second rotary drive mechanism (41) passes through a top plate (31) of the workbench (3) and is connected to the second winding wheel (43); A fine extrusion execution seat (5) is installed between the first winding wheel (42) and the second winding wheel (43), and the second winding wheel (43) is located between the fine extrusion execution seat (5) and the needle tube collection rotating frame (2); The tightening device (6) comprises: a fixing frame (61) and a tightening assembly (62); the fixing frame (61) is connected to one end of the workbench (3) close to the needle tube collecting rotating frame (2); the fixing frame (61) is movably connected to the tightening assembly (62) at one end close to the needle tube collecting rotating frame (2); the tightening assembly (62) is used to tighten the needle tube section between the needle tube collecting rotating frame (2) and the first winding wheel (42).

2. The needle winding and thinning device according to claim 1, characterized in that: Two fixed plates (34) are connected between two supporting legs (32) of the workbench (3) near one end of the needle tube collecting rotating frame (2), and a mounting plate (35) is provided between the two fixed plates (34). The fixed frame (61) comprises: a support frame (611) and a limiting frame (612). The mounting end of the support frame (611) is slidably connected to the two fixed plates (34). A clamping plate (6111) protrudes in the X direction at one end of the support frame (611) near the needle tube collecting rotating frame (2). The clamping plate (6111) is hinged to the tensioning component (62). A limiting frame (612) movable in the Z direction is installed on the support frame (611). A spring (613) is installed between the limiting frame (612) and the support frame (611). The limiting frame (612) is used to limit the rotation of the tensioning component (62) and the clamping plate (6111) and to limit the sliding of the support frame (611) relative to the fixed plate (34).

3. The needle winding and thinning device according to claim 2, characterized in that: The limiting frame (612) includes: a frame body (6121), a positioning tooth (6122), a rack (6123) and a limiting rod (6124). The frame body (6121) is installed on the support frame (611). The frame body (6121) can move in the Z direction relative to the mounting frame (33). The frame body (6121) is fixed with a positioning tooth (6122). The mounting plate (35) is installed with a rack (6123) located in the X direction. The positioning tooth (6122) can engage with the rack (6123). The frame body (6121) is also fixed with a limiting rod (6124). The limiting rod (6124) is used to limit the rotation of the tensioning component (62) relative to the clamping plate (6111).

4. The needle winding and thinning device according to claim 3, characterized in that: The tensioning assembly (62) includes: a rotating arm (621), a guide rod (622) and a guide head (623). A limit gear (625) is fixed to the top surface of one end of the rotating arm (621) close to the clamping plate (6111). The limit gear (625) is provided for the limit rod (6124) to be engaged. The rotating arm (621) is hinged to the clamping plate (6111) through a hinge shaft. The other end of the rotating arm (621) is passed through by the guide rod (622). A guide head (623) is provided on the top of the guide rod (622). The guide head (623) is provided for the needle tube to pass around.

5. The needle winding and thinning device according to claim 4, characterized in that: The middle of the guide head (623) is recessed to form a guide groove (624) for the needle tube to pass around.

6. The needle winding and thinning device according to claim 5, characterized in that: Two mounting grooves (311) are formed on the top plate (31), and the two mounting grooves (311) are located between the rotating wheels. The extrusion fine execution seat (5) includes a first orifice plate (51) and a second orifice plate (52). The first orifice plate (51) and the second orifice plate (52) are respectively provided in the two mounting grooves (311). The first orifice plate (51) and the second orifice plate (52) are arranged in the X direction. The first orifice plate (51) and the second orifice plate (52) are both formed with at least two extrusion holes (53) for the needle tube to pass through.

7. The needle winding and thinning device according to claim 6, characterized in that: The extrusion hole (53) is a trumpet structure. The diameter of the extrusion hole (53) penetration inlet (531) is larger than the diameter of the extrusion hole (53) penetration outlet (532). The diameter of the extrusion hole (53) penetration inlet (531) is larger than the outer diameter of the needle tube when not extruded. The diameter of the extrusion hole (53) penetration outlet (532) is smaller than the outer diameter of the needle tube when not extruded.

8. The needle winding and thinning device according to claim 7, characterized in that: A thread groove (421) is provided on the side surface of the rotating wheel, and the thread groove (421) is used for guiding the winding of the needle tube.

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