Knitting needle blank blanking die

Abstract

The invention discloses a knitting needle blank blanking die, and relates to the technical field of blanking dies, and the knitting needle blank blanking die is technically characterized by comprising a lower die plate and an upper die plate matched with the lower die plate for use, a blanking female die is mounted at the top end of the lower die plate, a blanking male die is mounted at the bottom end of the upper die plate, and a driving part is mounted below one side of the blanking male die; a transmission component is installed at the position, corresponding to the driving component, above one side of the blanking female die, and a discharging groove is formed in the upper portion of the other side of the blanking female die. The driving part comprises a mounting plate mounted below one side of the blanking male die, an extension plate is mounted on one side of the bottom end of the mounting plate, and line teeth are arranged below one side of the extension plate. And meanwhile, the next blanking procedure is not affected, and the overall efficiency of needle blank blanking is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of blanking dies, and specifically to a blanking die for knitting needle blanks. Background Art

[0002] At present, needle blanks are mainly obtained by blanking of steel strips. As a key carrier in the process of knitting needle blanking, the rationality of the die design plays a decisive role in the blanking quality of the needle blanks. Due to the simple structure, low manufacturing precision, and uneven blanking gap of ordinary blanking dies, the cross-section quality of the punched needle blanks is poor. To improve the cross-section quality of blanked parts, needle manufacturing enterprises often adopt processes such as sizing and fine blanking. However, if the sizing process adopts two processes, it will increase labor and equipment costs; using a progressive die will increase the difficulty and cost of die manufacturing. The special three-way press required for fine blanking is expensive and is mostly used to improve the blanking quality of thick plates.

[0003] After blanking, the existing blanking dies have a method of pushing out the needle blanks with a stripper plate. For some blanking dies for needle blanks with high precision requirements and complex shapes, the method of pushing out the needle blanks with a stripper plate can be adopted. The stripper plate and the punch adopt a clearance fit. During blanking, the stripper plate first presses the steel strip tightly. After blanking, under the action of the press, the stripper plate smoothly pushes the needle blank out of the die cavity.

[0004] The existing pushing-out method needs to rely on additional power to push out the blanked needle blanks, and during the process of pushing out the needle blanks, it will affect the next blanking process, affecting the continuity of blanking and reducing the blanking efficiency. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a blanking die for knitting needle blanks, which can solve the problems in the above background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A blanking die for knitting needle blanks, including a lower template and an upper template used in cooperation with the lower template. An blanking die cavity is installed at the top end of the lower template, and an blanking punch is installed at the bottom end of the upper template. A driving component is installed below one side of the blanking punch, a transmission component is installed above one side of the blanking die cavity and corresponding to the driving component, and a blanking groove is opened above the other side of the blanking die cavity; The driving component includes a mounting plate installed below one side of the blanking punch. One side of the bottom end of the mounting plate is provided with an extension plate, and a wire tooth is arranged below one side of the extension plate; The transmission component includes an end cap covered on one side above the blanking female die. Inside the blanking female die and on one side of the end cap, a rotating column is rotatably installed. One end of the rotating column is equipped with a rotating rod, and one end of the outer wall of the rotating rod is equipped with a gear. A socket is slidably sleeved on the outer wall of the rotating column. One end of the socket is equipped with a push rod, and one end of the push rod is connected to a push plate. A sliding convex block is fixed at the top end of the inner wall of the socket, and an inclined annular groove for cooperating with the sliding convex block is formed on the outer wall of the rotating column.

[0007] Preferably, guide posts are installed at the four corners of the top end of the lower template, and springs are sleeved below the outer walls of the guide posts.

[0008] Preferably, guide sleeves for cooperating with the guide posts are installed at the four corners of the upper template, and a connecting die handle is installed in the middle of the top end of the upper template.

[0009] Preferably, a blanking protrusion is provided in the middle of the bottom end of the blanking punch, a blanking hole for cooperating with the blanking protrusion is formed in the middle of the top end of the blanking female die, and cushion plates are symmetrically installed at the top end of the blanking female die.

[0010] Preferably, the blanking hole penetrates through to the blanking groove.

[0011] Preferably, the push rod is slidably connected to the blanking female die, and the push plate is slidably connected to the blanking groove.

[0012] Preferably, the horizontal length of the inclined annular groove is the same as the maximum width of the blanking hole, and the initial position of the push plate overlaps with the blanking hole.

[0013] Preferably, the number of teeth of the wire teeth is half of the number of teeth of the gear.

[0014] Compared with the prior art, the present invention provides a blanking die for knitting needle blanks, having the following beneficial effects: Through the driving component and the transmission component, during the blanking process, by using the self-power during the upward movement of the upper template, the pushing and discharging of the needle blanks after blanking are realized. At the same time, it will not affect the next blanking process, improving the overall efficiency of needle blank blanking. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of another perspective of the present invention; Figure 3 is a schematic structural diagram of the bottom perspective of the upper template of the present invention; Figure 4 is a schematic structural diagram of the installation plate of the present invention; Figure 5 is a schematic structural diagram of the blanking female die of the present invention; Figure 6 is a schematic structural diagram of another perspective of the blanking female die of the present invention; Figure 7 Schematic diagram of a partially sectioned blanking concave die of the present invention; Figure 8 Schematic diagram of the partial disassembled structure of the present invention; Figure 9 Schematic diagram of a partially sectioned socket of the present invention; Figure 10 Rear view of the present invention.

[0016] In the figure: 1, lower template; 11, guide pillar; 12, spring; 2, upper template; 21, guide bushing; 22, connecting die handle; 3, blanking concave die; 31, backing plate; 32, blanking hole; 33, blanking groove; 4, blanking punch; 41, blanking projection; 5, mounting plate; 51, extension plate; 52, wire teeth; 53, end cap; 54, push plate; 55, push rod; 56, socket; 561, sliding projection; 57, rotating column; 571, rotating rod; 572, gear; 573, inclined annular groove. Specific embodiments

[0017] In the present invention, unless otherwise stated, the orientations such as "upper and lower" are usually with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravitational directions; similarly, for the convenience of understanding and description, "left and right" are usually with respect to the left and right shown in the drawings; "inside and outside" refer to the inside and outside with respect to the contours of each component itself, but the above orientation terms are not used to limit the present invention.

[0018] Please refer to Figure 1-10 , the present invention provides a technical solution for a blanking die for knitting needle blanks: Embodiment 1, a blanking die for knitting needle blanks, includes a lower template 1 and an upper template 2 used in cooperation with the lower template 1. A blanking concave die 3 is installed at the top end of the lower template 1, a blanking punch 4 is installed at the bottom end of the upper template 2, a driving component is installed below one side of the blanking punch 4, a transmission component is installed above one side of the blanking concave die 3 and corresponding to the driving component, and a blanking groove 33 is opened above the other side of the blanking concave die 3; The driving component includes a mounting plate 5 installed below one side of the blanking punch 4. One side of the bottom end of the mounting plate 5 is installed with an extension plate 51, and wire teeth 52 are arranged below one side of the extension plate 51; The transmission component includes an end cover 53 covering the upper side of one side of the blanking concave die 3. Inside the blanking concave die 3 and on one side of the end cover 53, a rotating column 57 is rotatably installed. One end of the rotating column 57 is provided with a rotating rod 571, and one end of the outer wall of the rotating rod 571 is provided with a gear 572. A socket 56 is slidably sleeved on the outer wall of the rotating column 57. One end of the socket 56 is provided with a push rod 55, and one end of the push rod 55 is connected with a push plate 54. The top end of the inner wall of the socket 56 is fixed with a sliding convex block 561, and an inclined annular groove 573 for cooperating with the sliding convex block 561 is formed on the outer wall of the rotating column 57; Guide posts 11 are installed at the four corners of the top end of the lower template 1. A spring 12 is sleeved below the outer wall of the guide posts 11. The lower template 1 mainly undertakes the important functions of guiding and positioning. During the opening and closing process of the mold, the guide posts 11 and the guide sleeves 21 cooperate with each other to provide precise guidance, ensuring that the blanking concave die 3 and the blanking punch 4 can be accurately aligned during stamping, avoiding misalignment. This not only ensures the dimensional accuracy of the needle blank blanking, prevents problems such as dimensional deviation and irregular shape of the needle blank caused by mold misalignment, but also effectively reduces wear. Because if the mold deviates during the movement process, local parts of the blanking concave die 3 and the blanking punch 4 will bear greater pressure and friction, accelerating the damage of the mold. The guiding function of the guide posts 11 can enable the punch to smoothly enter the die, extending the service life of the mold. Guide sleeves 21 for cooperating with the guide posts 11 are installed at the four corners of the upper template 2. A connecting die handle 22 is installed in the middle of the top end of the upper template 2. A blanking protrusion 41 is arranged in the middle of the bottom end of the blanking punch 4. A blanking hole 32 for cooperating with the blanking protrusion 41 is formed in the middle of the top end of the blanking concave die 3. Pad plates 31 are symmetrically installed at the top end of the blanking concave die 3. The blanking hole 32 penetrates through to the blanking groove 33, facilitating the direct dropping of the blanked needle blank without affecting the continuity of the subsequent needle blank blanking.

[0019] In the second embodiment, the push rod 55 is slidably connected with the blanking concave die 3, the push plate 54 is slidably connected with the blanking groove 33. The horizontal length of the inclined annular groove 573 is the same as the maximum width of the blanking hole 32. The initial position of the push plate 54 overlaps with the blanking hole 32, ensuring that the blanked needle blank can be pushed for a needle blank stroke without blocking the next blanking. The horizontal length refers to the horizontal displacement length when the sliding convex block 561 slides from one end of the inclined annular groove 573 to the other end. The number of teeth of the linear tooth 52 is half of the number of teeth of the gear 572. The setting of this tooth number ratio can, during the downward movement, pull the push plate 54 back to one side of the blanking hole 32 and then further complete a blanking operation, ensuring that the push plate 54 does not block the blanking operation.

[0020] During specific use, as a blanking die for knitting needle blanks, after the needle blank blanking sheet is fed from one side of the two backing plates 31, the punching press drives the upper template 2 to move downward. During the downward movement of the upper template 2, the wire teeth 52 at the extension plate 51 first come into contact and mesh with the gear 572, and drive the gear 572 to rotate half a turn. While the gear 572 rotates, it will drive the sliding convex block 561 to slide relative to the inclined annular groove 573, thereby pulling the sleeve seat 56, the push rod 55, and the push plate 54 to slide, and pulling the push plate 54 to one side of the punching hole 32. Then the upper template 2 continues to move downward. At this time, the wire teeth 52 and the gear 572 are in a separated state, and through the cooperation of the punching protrusion 41 and the punching hole 32, the needle blank blanking sheet is punched once, and the punched needle blank will fall into the blanking groove 33; At this time, the punching press drives the upper template 2 to move upward. During the upward movement, the wire teeth 52 and the gear 572 mesh again, and drive the gear 572 to rotate half a turn, with the rotation direction opposite to that before, driving the sleeve seat 56, the push rod 55, and the push plate 54 to slide, sliding the push plate 54 to the corresponding position of the punching hole 32, and pushing the punched needle blank for a stroke, so as to achieve continuous and uninterrupted blanking while completing the automatic pushing and discharging of the continuously blanked material, thereby improving the overall blanking efficiency.

[0021] The above are only specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements, or modifications made based on the present invention to solve substantially the same technical problems and achieve substantially the same technical effects are all covered by the protection scope of the present invention.

Claims

1. A blanking die for knitting needle blanks, comprising a lower template (1) and an upper template (2) used in cooperation with the lower template (1). A blanking concave die (3) is installed at the top end of the lower template (1), and a blanking convex die (4) is installed at the bottom end of the upper template (2), characterized in that: A driving component is installed below one side of the blanking punch (4), a transmission component is installed above one side of the blanking die (3) corresponding to the driving component, and a blanking groove (33) is formed above the other side of the blanking die (3); The driving component includes a mounting plate (5) installed below one side of the blanking punch (4), an extension plate (51) is installed at one bottom side of the mounting plate (5), and a wire tooth (52) is arranged below one side of the extension plate (51); The transmission component includes an end cover (53) covering above one side of the blanking die (3), a rotating column (57) is rotatably installed inside the blanking die (3) and on one side of the end cover (53), a rotating rod (571) is installed at one end of the rotating column (57), a gear (572) is installed at one outer wall end of the rotating rod (571), a socket (56) is slidably sleeved on the outer wall of the rotating column (57), a push rod (55) is installed at one end of the socket (56), a push plate (54) is connected to one end of the push rod (55), a sliding protrusion (561) is fixed at the top end of the inner wall of the socket (56), and an inclined ring groove (573) matched with the sliding protrusion (561) is formed on the outer wall of the rotating column (57).

2. The blanking die for knitting needle blanks according to claim 1, characterized in that: Guide posts (11) are installed at four corners of the top end of the lower template (1), and springs (12) are sleeved below the outer walls of the guide posts (11).

3. A blanking die for knitting needles according to claim 1, characterized in that: Guide sleeves (21) matched with the guide posts (11) are installed at four corners of the upper template (2), and a connecting die handle (22) is installed in the middle of the top end of the upper template (2).

4. The blanking die for knitting needle blanks according to claim 1, characterized in that: A blanking protrusion (41) is arranged in the middle of the bottom end of the blanking punch (4), a blanking hole (32) matched with the blanking protrusion (41) is formed in the middle of the top end of the blanking die (3), and cushion plates (31) are symmetrically installed at the top end of the blanking die (3).

5. A blanking die for knitting needles according to claim 4, characterized in that: The blanking hole (32) penetrates through to the blanking groove (33).

6. The blanking die for knitting needle blanks according to claim 1, characterized in that: The push rod (55) is slidably connected with the blanking die (3), and the push plate (54) is slidably connected with the blanking groove (33).

7. A blanking die for knitting needles according to claim 1, characterized in that: The transverse length of the inclined ring groove (573) is the same as the maximum width of the blanking hole (32), and the initial position of the push plate (54) overlaps with the blanking hole (32).

8. A blanking die for knitting needles according to claim 1, characterized in that: The number of teeth of the wire tooth (52) is half of the number of teeth of the gear (572).

Images