Extrusion fine execution structure after quenching of auxiliary tube penetrating type needle tube

Abstract

The structure comprises an extrusion box body, a limiting cover plate, extrusion mechanisms and a traction clamping mechanism, the two ends of the extrusion box body are fixed to the limiting cover plate through screws, mounting holes are formed in the extrusion box body, one extrusion mechanism is inserted into each mounting hole, and the traction clamping mechanism is fixed to the limiting cover plate through screws. An inner hole of the extrusion mechanism is an extrusion hole, the penetrating hole is of a horn-shaped structure, the large end of the penetrating hole is located on the side, away from the limiting cover plate, of the small end of the penetrating hole, the small end of the penetrating hole communicates with the stretching hole, and the joint of the inner wall of the small end of the penetrating hole and the inner wall of the stretching hole is used for shrinking a to-be-stretched thin needle tube through extrusion. According to the extrusion fine execution structure after quenching of the auxiliary tube penetrating type needle tube, a person operates the clamping assembly to clamp the needle tube to be thinned to penetrate the needle tube into the penetrating hole, and after the needle tube is compressed and thinned by the extrusion mechanism, the clamping assembly is rotated to the other side of the extrusion box body to pull out the needle tube; and the risk that the hand is scalded due to the fact that the needle tube needs to be manually pulled by a worker after frequent quenching treatment is avoided.

Description

Technical Field

[0001] The utility model relates to an extrusion fine execution structure, in particular to an auxiliary tube-penetrating needle tube quenching and extrusion fine execution structure. Background Art

[0002] During the needle manufacturing process, due to the varying initial diameters, specific processing steps are required to reduce the diameter and stretch it into a uniformly sized, thin needle. This process ensures precise and uniform needle dimensions for subsequent processing and practical application.

[0003] The needle tube extrusion thinning structure in the prior art is provided with an extrusion block, in which an extrusion hole is opened. The extrusion hole is a trumpet structure, the penetration entrance of the extrusion hole is larger than the needle tube, and the penetration exit of the extrusion hole is smaller than the needle tube. When the needle tube passes through the extrusion hole, the external servo motor drives the tensioning wheel to rotate to drive the needle tube wrapped on the tensioning wheel to pass through the extrusion hole to thin the needle tube. However, when used for the first time, the needle tube needs to be manually pulled through the extrusion hole. Since the needle tube is easier to be thinned after quenching and heating, the hands are easily burned when the needle tube is pulled by hand. At the same time, the penetration entrance and the penetration exit of the extrusion hole are in fixed directions, but when the needle tube needs to be pulled into the extrusion hole in the reverse direction, the extrusion block needs to be disassembled to adjust the direction, making the extrusion process more cumbersome. Utility Model Content

[0004] The utility model aims to provide an auxiliary tube-threading type needle tube quenching and then extruding a fine execution structure, which solves the problem in the prior art that the hands of personnel are easily scalded when the needle tube is first pulled into the extrusion hole, and improves the efficiency of needle tube extrusion.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: The present invention provides an auxiliary tube-through-tube quenching and extrusion fine execution structure, comprising: an extrusion box body, a limit cover plate, an extrusion mechanism and a traction clamping mechanism,

[0006] The two ends of the extrusion box body are fixed to the limit cover plate by screws. The extrusion box body is provided with mounting holes, and there are at least two mounting holes. An extrusion mechanism is inserted into each mounting hole. The limit cover plate is provided with connecting holes corresponding to the mounting holes. The diameter of the connecting holes is smaller than the outer diameter of the cross section at both ends of the extrusion mechanism. The limit cover plate limits the extrusion mechanism from being separated from the mounting holes.

[0007] The extrusion mechanism is a tubular structure, and the inner hole of the extrusion mechanism is an extrusion hole. The extrusion hole includes: an insertion hole and a stretching hole. The insertion hole is a trumpet-shaped structure. The large end of the insertion hole is located on the side of the small end of the insertion hole away from the limit cover plate. The small end of the insertion hole is connected to the stretching hole. The connection between the inner wall of the small end of the insertion hole and the inner wall of the stretching hole is used to shrink the needle tube to be stretched by extrusion;

[0008] The traction and clamping mechanism is installed on the top of the extrusion box body. The traction and clamping mechanism includes: a mounting seat, a first telescopic rod, a second telescopic rod and a clamping assembly. The mounting seat is installed with a movable first telescopic rod, the first telescopic rod is connected to the second telescopic rod, the second telescopic rod can move relative to the first telescopic rod, and the second telescopic rod is provided with a clamping assembly at one end away from the first telescopic rod. The clamping assembly is used to clamp the needle tube to be pulled under hand drive.

[0009] Preferably, the hole in the mounting seat for the movement of the first telescopic rod is a telescopic hole, a rotating ring is installed in the telescopic hole, the rotating ring guides the movement of the first telescopic rod, the first telescopic rod cannot rotate relative to the rotating ring, the inner wall of the rotating ring is provided with a first limiting tooth, and the first limiting tooth surrounds the outside of the first telescopic rod.

[0010] Preferably, a limiting mechanism is provided next to the first telescopic rod and the first limiting tooth, and the limiting mechanism includes: a limiting ring, which can only move relative to the mounting seat in a direction parallel to the first telescopic rod under the guidance of the mounting seat, and a limiting sleeve protruding from the side of the limiting ring close to the mounting seat, the limiting ring and the limiting sleeve are both arranged outside the first telescopic rod, the inner wall of the limiting ring and the inner wall of the limiting sleeve do not contact the first telescopic rod, and the limiting sleeve is used to act with the first limiting tooth to limit the rotation of the rotating ring relative to the mounting seat.

[0011] Preferably, a second limiting tooth is provided on the limiting sleeve, and an elastic member is installed between the limiting ring and the mounting seat, and the elastic member is used to keep the second limiting tooth engaged with the first limiting tooth.

[0012] Preferably, a limiting arm protrudes from the bottom of the limiting ring, a limiting groove is opened on the top of the extrusion box body, the limiting arm extends into the limiting groove, and the limiting arm slides under the guidance of the limiting groove.

[0013] Preferably, the elastic member is a spring, which is installed between the mounting seat and the limiting arm fixed to the limiting ring, and the mounting seat can tighten the limiting arm through the spring.

[0014] Preferably, the clamping assembly includes: an upper clamping arm and a lower clamping arm, the middle part of the upper clamping arm and the middle part of the lower clamping arm are hinged on the second telescopic rod, the clamping end of the upper clamping arm and the clamping end of the lower clamping arm are used to clamp the needle tube to be pulled thin, and a spring is provided between the handle end of the upper clamping arm and the handle end of the lower clamping arm, and the spring is used to keep the clamping end of the upper clamping arm and the clamping end of the lower clamping arm in an open state.

[0015] Preferably, a connector is provided at one end of the first telescopic rod away from the mounting seat, and a connecting hole is provided on the connector for the second telescopic rod to pass through, and the connecting hole is used to guide the second telescopic rod to rise and fall relative to the first telescopic rod.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the auxiliary tube-penetrating needle tube quenching and extrusion execution structure has a mounting hole in its extrusion box body, the extrusion mechanism is inserted into the mounting hole, the extrusion mechanism is restricted in the mounting hole by the limiting cover plates on both sides, the inner hole of the extrusion mechanism is an extrusion hole, the extrusion hole includes a penetration hole and a stretching hole, the needle tube to be drawn starts to pass through the penetration hole, and when the needle tube to be drawn is located between the stretching hole and the penetration hole, the needle tube to be drawn is squeezed thin, the inner wall of the stretching hole and the inner wall of the small end of the penetration hole are used to squeeze and shrink the needle tube to be drawn thin, in the traction clamping mechanism on the top of the box body, firstly, by setting the first telescopic rod, the second telescopic rod and the clamping assembly can all rotate relative to the mounting seat, The clamping assembly can be rotated to a position aligned with the designated extrusion mechanism, so that the clamping assembly can clamp the needle tube to be pulled thin, and then the position of the clamping assembly is adjusted by the telescopic movement of the first telescopic rod and the second telescopic rod, so that the clamping assembly can be adapted to extend into the extrusion mechanism as the needle tube to be pulled thin is clamped, thereby achieving the goal of clamping the needle tube to be pulled thin and pushing it into the extrusion mechanism step by step through the clamping assembly, so that it is convenient for personnel to operate the clamping assembly to clamp the needle tube to be pulled thin and insert it into its insertion hole. After the needle tube is compressed and stretched by the extrusion mechanism, the clamping assembly is turned to the other side of the extrusion box to pull the needle tube out. This design avoids the risk of manual pulling of the needle tube by personnel after frequent quenching treatment, which may cause burns to the hands. As long as the needle tube to be pulled thin has been manually passed through the extrusion mechanism through the clamping assembly, and then there is an external drive to pull the needle tube to be pulled thin to continuously pull the needle tube to be pulled thin through the extrusion mechanism, the needle tube to be pulled thin can be continuously stretched.

[0017] 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

[0018] Figure 1 This is a schematic diagram of the auxiliary tube-through needle tube extrusion fine execution structure after quenching.

[0019] Figure 2 Schematic diagram of the limiting mechanism.

[0020] Figure 3 This is a cross-sectional view of the auxiliary tube-through needle tube after quenching and extrusion of the fine execution structure.

[0021] Figure numerals: extrusion box body 1, mounting hole 11, limiting groove 12, limiting cover plate 2, connecting hole 21, extrusion mechanism 3, extrusion hole 31, penetration hole 311, stretching hole 312, traction clamping mechanism 4, mounting seat 41, rotating ring 411, first limiting tooth 412, first telescopic rod 42, second telescopic rod 43, clamping assembly 44, upper clamping arm 441, lower clamping arm 442, spring 443, limiting mechanism 45, limiting ring 451, limiting sleeve 452, second limiting tooth 453, spring 454, limiting arm 455, connecting hole 46. DETAILED DESCRIPTION

[0022] 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:

[0023] like Figures 1 to 3 As shown, the utility model proposes an auxiliary tube-penetrating needle tube quenching and extrusion fine execution structure, including: an extrusion box body 1, a limiting cover plate 2, an extrusion mechanism 3 and a traction clamping mechanism 4, the two ends of the extrusion box body 1 are fixed to the limiting cover plate 2 by screws, the extrusion box body 1 is provided with a mounting hole 11, and there are at least two mounting holes 11, and an extrusion mechanism 3 is inserted into each mounting hole 11, and a connecting hole 21 corresponding to the mounting hole 11 is provided on the limiting cover plate 2, and the aperture of the connecting hole 21 is smaller than the outer diameter of the cross-section at both ends of the extrusion mechanism 3, and the limiting cover plate 2 limits the extrusion mechanism 3 from being separated from the mounting hole 11; the extrusion mechanism 3 is a tubular structure, and the inner hole of the extrusion mechanism 3 is an extrusion hole 31, and the extrusion hole 31 includes: an insertion hole 311 and a stretching hole 312, and the insertion hole 311 is a horn The traction clamping mechanism 4 is installed on the top of the extrusion box body 1, and the traction clamping mechanism 4 includes: a mounting seat 41, a first telescopic rod 42, a second telescopic rod 43 and a clamping assembly 44. The mounting seat 41 is equipped with a movable first telescopic rod 42, the first telescopic rod 42 is connected to the second telescopic rod 43, the second telescopic rod 43 can move relative to the first telescopic rod 42, and the second telescopic rod 43 is provided with a clamping assembly 44 at the end away from the first telescopic rod 42. The clamping assembly 44 is used to clamp the needle tube to be pulled thin under hand drive. During use, the needle tube is clamped by the traction clamping mechanism 4, and the needle tube is inserted into the penetration hole 311 of the extrusion hole 31 through the cooperation of the first telescopic rod 42 and the second telescopic rod 43. The needle tube passes through the penetration hole 311 and extends into the stretching hole 312. The inner wall of the stretching hole 312 compresses and thins the needle tube, and the limiting cover plate 2 restricts the extrusion mechanism 3 from detaching from the mounting hole 11.

[0024] The hole in the mounting base 41 through which the first telescopic rod 42 moves is a telescopic hole. A rotating ring 411 is mounted within the telescopic hole. The rotating ring 411 guides the movement of the first telescopic rod 42, preventing the first telescopic rod 42 from rotating relative to the rotating ring 411. The inner wall of the rotating ring 411 is provided with first stop teeth 412, which surround the first telescopic rod 42. The first telescopic rod 42 is inserted into the rotating ring 411. When the first telescopic rod 42 rotates, it drives the rotating ring 411 to rotate relative to the telescopic hole, allowing the first telescopic rod 42 to extend and retract relative to the rotating ring 411. The rotating ring 411 and the first telescopic rod 42 can rotate together under the guidance of the mounting base 41. The rotating ring 411 cannot move relative to the mounting base 41. The first stop teeth 412 on the rotating ring 411 set the stage for subsequent rotation restriction.

[0025] A limiting mechanism 45 is provided next to the first telescopic rod 42 and the first limiting tooth 412. The limiting mechanism 45 includes: a limiting ring 451. The limiting ring 451 can only move in a direction parallel to the first telescopic rod 42 relative to the mounting seat 41 under the guidance of the mounting seat 41. A limiting sleeve 452 protrudes from the side of the limiting ring 451 close to the mounting seat 41. The limiting ring 451 and the limiting sleeve 452 are both sleeved on the outside of the first telescopic rod 42. The inner wall of the limiting ring 451 and the inner wall of the limiting sleeve 452 do not contact the first telescopic rod 42. The limiting sleeve 452 is used to act with the first limiting tooth 412 to limit the rotation of the rotating ring 411 relative to the mounting seat 41.

[0026] A second limiting tooth 453 is provided on the limiting sleeve 452. An elastic member is installed between the limiting ring 451 and the mounting base 41. The elastic member is used to maintain the engagement of the second limiting tooth 453 with the first limiting tooth 412. By engaging the first limiting tooth 412 with the second limiting tooth 453, the limiting ring 451 restricts the rotation of the rotating ring 411, thereby limiting the rotation of the first telescopic rod 42 and maintaining it at a specific rotation angle. This allows the clamping position of the clamping assembly to be aligned with a certain extrusion mechanism 3. Pulling the limiting sleeve 452 disengages the second limiting tooth 453 from the first limiting tooth 412, thereby releasing the rotating ring 411, the first limiting tooth 412, the first telescopic rod 42, the second telescopic rod 43, and the clamping assembly 44.

[0027] A limiting arm 455 protrudes from the bottom of the limiting ring 451, and a limiting slot 12 is formed on the top of the extrusion box body 1. The limiting arm 455 extends into the limiting slot 12 and slides under the guidance of the limiting slot 12. The limiting slot 12 limits the limiting arm 455 so that the limiting ring 451 does not rotate with the rotating ring 411.

[0028] The elastic member is a spring 454, which is installed between the mounting base 41 and a limiting arm 455 fixed to the limiting ring 451. The mounting base 41 can tighten the limiting arm 455 through the spring 454. When the first telescopic rod 42 is extended or retracted relative to the rotating ring 411, the first telescopic rod 42 does not pull the limiting sleeve 452 away from the rotating ring 411, so that the first telescopic rod 42 always maintains a specific rotation angle during extension and retraction.

[0029] The clamping assembly 44 includes an upper clamping arm 441 and a lower clamping arm 442. The middle portions of the upper clamping arm 441 and the middle portions of the lower clamping arm 442 are both hinged to the second telescopic rod 43. The clamping ends of the upper clamping arm 441 and the lower clamping arm are used to clamp the needle to be pulled thin. A spring 443 is provided between the handle end of the upper clamping arm 441 and the handle end of the lower clamping arm 442. The spring 443 is used to open the clamping ends of the upper clamping arm 441 and the lower clamping arm. During use, the upper clamping arm 441 and the lower clamping arm 442 are pinched together by hand to clamp the end of the needle and insert it into the extrusion hole 31. When the needle is inserted into the extrusion hole 31, the upper clamping arm 441 and the lower clamping arm 442 are released, and the spring 443 pops the upper clamping arm 441 and the lower clamping arm 442 open to the initial open state.

[0030] The first telescopic rod 42 has a connector at one end away from the mounting base 41. The connector has a connecting hole 46 through which the second telescopic rod 43 passes. The connecting hole 46 is used to guide the second telescopic rod 43 up and down relative to the first telescopic rod 42. When the first telescopic rod 42 is rotated to a specific angle, the length of the second telescopic rod 43 is adjusted so that the needle clamped in the clamping assembly 44 can be inserted into the extrusion hole 31.

[0031] 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. The auxiliary tube-penetrating needle tube is quenched and then extruded into a fine execution structure, characterized in that: include: Extrusion box body (1), limiting cover plate (2), extrusion mechanism (3) and traction clamping mechanism (4), The two ends of the extrusion box body (1) are fixed to the limiting cover plate (2) by screws. The extrusion box body (1) is provided with mounting holes (11), there are at least two mounting holes (11), and an extrusion mechanism (3) is inserted into each mounting hole (11). The limiting cover plate (2) is provided with connecting holes (21) corresponding to the mounting holes (11). The diameter of the connecting holes (21) is smaller than the outer diameter of the cross section at both ends of the extrusion mechanism (3). The limiting cover plate (2) limits the extrusion mechanism (3) from being separated from the mounting holes (11). The extrusion mechanism (3) is a tubular structure, the inner hole of the extrusion mechanism (3) is an extrusion hole (31), and the extrusion hole (31) includes: a penetration hole (311) and a stretching hole (312). The penetration hole (311) is a trumpet-shaped structure, the large end of the penetration hole (311) is located on the side of the small end of the penetration hole (311) away from the limiting cover plate (2), the small end of the penetration hole (311) is connected to the stretching hole (312), and the connection between the inner wall of the small end of the penetration hole (311) and the inner wall of the stretching hole (312) is used to shrink the needle tube to be stretched by extrusion; The traction clamping mechanism (4) is installed on the top of the extrusion box body (1), and the traction clamping mechanism (4) includes: a mounting seat (41), a first telescopic rod (42), a second telescopic rod (43) and a clamping assembly (44). The mounting seat (41) is installed with a movable first telescopic rod (42), the first telescopic rod (42) is connected to the second telescopic rod (43), and the second telescopic rod (43) can move relative to the first telescopic rod (42). The second telescopic rod (43) is provided with a clamping assembly (44) at one end away from the first telescopic rod (42). The clamping assembly (44) is used to clamp the needle tube to be pulled thin under manual drive.

2. The auxiliary tube-penetrating needle tube quenching and extrusion fine execution structure according to claim 1 is characterized in that: The hole of the mounting seat (41) for the first telescopic rod (42) to move is a telescopic hole. A rotating ring (411) is installed in the telescopic hole. The rotating ring (411) guides the first telescopic rod (42) to move. The first telescopic rod (42) cannot rotate relative to the rotating ring (411). The inner wall of the rotating ring (411) is provided with a first limiting tooth (412). The first limiting tooth (412) surrounds the outside of the first telescopic rod (42).

3. The auxiliary tube-penetrating needle tube quenching and extrusion fine execution structure according to claim 2 is characterized in that: A limiting mechanism (45) is provided beside the first telescopic rod (42) and the first limiting tooth (412). The limiting mechanism (45) comprises a limiting ring (451). The limiting ring (451) can only move relative to the mounting seat (41) in a direction parallel to the first telescopic rod (42) under the guidance of the mounting seat (41). A limiting sleeve (452) protrudes from one side of the limiting ring (451) close to the mounting seat (41). The limiting ring (451) and the limiting sleeve (452) are both sleeved outside the first telescopic rod (42). The inner wall of the limiting ring (451) and the inner wall of the limiting sleeve (452) do not contact the first telescopic rod (42). The limiting sleeve (452) is used to act with the first limiting tooth (412) to limit the rotation of the rotating ring (411) relative to the mounting seat (41).

4. The auxiliary tube-penetrating needle tube quenching and extrusion fine execution structure according to claim 3 is characterized in that: The limiting sleeve (452) is provided with a second limiting tooth (453), and an elastic member is installed between the limiting ring (451) and the mounting seat (41), and the elastic member is used to keep the second limiting tooth (453) engaged with the first limiting tooth (412).

5. The auxiliary tube-penetrating needle tube quenching and extrusion fine execution structure according to claim 4 is characterized in that: A limiting arm (455) protrudes from the bottom of the limiting ring (451), a limiting groove (12) is opened on the top of the extrusion box body (1), the limiting arm (455) extends into the limiting groove (12), and the limiting arm (455) slides under the guidance of the limiting groove (12).

6. The auxiliary tube-penetrating needle tube quenching and extrusion fine execution structure according to claim 5 is characterized in that: The elastic member is a spring (454), which is installed between the mounting seat (41) and a limiting arm (455) fixed to the limiting ring (451). The mounting seat (41) can tighten the limiting arm (455) through the spring (454).

7. The auxiliary tube-penetrating needle tube quenching and extrusion fine execution structure according to claim 6 is characterized in that: The clamping assembly (44) includes an upper clamping arm (441) and a lower clamping arm (442). The middle portion of the upper clamping arm (441) and the middle portion of the lower clamping arm (442) are both hinged on the second telescopic rod (43). The clamping end of the upper clamping arm (441) and the clamping end of the lower clamping arm are used to clamp the needle tube to be pulled thin. A spring (443) is provided between the handle end of the upper clamping arm (441) and the handle end of the lower clamping arm (442). The spring (443) is used to keep the clamping end of the upper clamping arm (441) and the clamping end of the lower clamping arm in an open state.

8. The auxiliary tube-penetrating needle tube quenching and extrusion fine execution structure according to claim 7 is characterized in that: A connector is provided at one end of the first telescopic rod (42) away from the mounting seat (41). The connector is provided with a connecting hole (46) for the second telescopic rod (43) to pass through. The connecting hole (46) is used to guide the second telescopic rod (43) to rise and fall relative to the first telescopic rod (42).

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