Automatic continuous stamping die for sewing machine rack back beam

Abstract

The invention belongs to the technical field of stamping dies, particularly relates to an automatic continuous stamping die for a back beam of a sewing machine rack, and provides the following scheme aiming at the problems that a thin steel strip is easy to deform due to distortion or local depression, and the die is worn and the workpiece quality is reduced due to direct stamping: the automatic continuous stamping die comprises a main frame body; the workbench is located on one side of the main frame body; the bottom of the mounting frame is fixedly connected to the inner wall of the workbench; and the traction leveling module is arranged in the working table, and the traction leveling module comprises a hollow pipe. According to the automatic continuous stamping die for the sewing machine rack back beam, the two sides of a thin steel belt can be continuously pulled in a reciprocating mode in the thin steel belt conveying process, irregular deformation such as bending and twisting generated in the conveying process is eliminated in real time, and the flat and stretched state of the steel belt is continuously kept; and positioning deviation and uneven stress caused by local unevenness in subsequent stamping are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of stamping dies, and particularly to an automated continuous stamping die for the back beam of a sewing machine frame. Background Art

[0002] A stamping die is a special process equipment for processing materials into parts in cold stamping, called a cold stamping die; stamping is a pressure processing method in which, at room temperature, a die installed on a press applies pressure to the material to cause separation or plastic deformation, thereby obtaining the required parts.

[0003] The back beam of a sewing machine frame is formed by stamping a thin steel strip with a stamping die. Since the thickness of the thin steel strip is relatively thin and the rigidity is relatively low, it is prone to deformation due to twisting or local depression during the conveying process. Direct stamping will cause uneven stress on the die, resulting in wear and even damage, and the workpiece will have defects due to positioning deviation, reducing the finished product quality. Summary of the Invention

[0004] The present invention discloses an automated continuous stamping die for the back beam of a sewing machine frame, aiming to solve the technical problems in the background art that the thin steel strip is prone to deformation due to twisting or local depression, and direct stamping will cause die wear and reduce the workpiece quality.

[0005] An automated continuous stamping die for the back beam of a sewing machine frame proposed by the present invention includes a main frame body; A workbench, the workbench is located on one side of the main frame body; An installation frame, the bottom of the installation frame is fixedly connected to the inner wall of the workbench; A pulling and leveling module, the pulling and leveling module is arranged inside the workbench. The pulling and leveling module includes a hollow tube, and two symmetrically arranged sliding seats are slidably connected to the outside of the hollow tube. The outside of the two sliding seats is movably connected with movable sleeves. The pulling and leveling module levels the deformation of the thin steel strip during the conveying process due to twisting or local depression; A deviation correction module, the deviation correction module is arranged on the installation frame. The deviation correction module includes two sliding members, the tops of the two sliding members are fixedly connected with mounting seats, two circular holes are opened on each of the two mounting seats, and movable wheels are rotatably connected in a plurality of circular holes. The deviation correction module corrects the position deviation generated during the conveying process of the thin steel strip.

[0006] In a preferred solution, the pulling and leveling module further includes two hydraulic rods, and two installation holes are opened on the workbench. The two hydraulic rods are fixedly connected to the corresponding installation holes, and the driving ends of the two hydraulic rods are fixedly connected with the same connecting plate frame.

[0007] In a preferred embodiment, two connecting columns are fixedly connected to the bottom of the connecting plate frame. The outer sides of the two connecting columns are slidably connected to the same movable plate frame. Springs II are wound around the outer sides of the two connecting columns. One end of each of the two Springs II is fixedly connected to the connecting plate frame, and the other end of each is fixedly connected to the movable plate frame. A fixing hole is formed in the movable plate frame, and the hollow tube is fixedly connected to the fixing hole.

[0008] In a preferred embodiment, two universal motors are fixedly connected to the bottom of the movable plate frame. The output ends of the two universal motors are fixedly connected to winding wheels I. Winding ropes I are wound around the outer sides of the two winding wheels I. One end of each of the two winding ropes I away from the winding wheel I is fixedly connected to the corresponding sliding seat. Two symmetrically arranged rotating frames are fixedly connected to the movable plate frame. Guide wheels are rotatably connected to the two rotating frames. The two winding ropes I slide on the outer walls of the corresponding guide wheels.

[0009] In a preferred embodiment, two symmetrically arranged fixing members are fixedly connected to the outer side of the hollow tube. Springs III are wound around the outer side of the hollow tube. One end of each of the two Springs III is fixedly connected to the corresponding fixing member, and the other end of each is fixedly connected to the corresponding sliding seat.

[0010] In a preferred embodiment, the deviation correction module further includes a fixing plate frame. The fixing plate frame is fixedly connected to the bottom of the mounting frame. Two sliding rods are fixedly connected to the fixing plate frame. The two sliding members slide on the outer sides of the corresponding sliding rods. Springs IV are wound around the outer sides of the two sliding rods. One end of each of the two Springs IV is fixedly connected to the corresponding sliding member, and the other end of each is fixedly connected to the fixing plate frame.

[0011] In a preferred embodiment, a mounting bracket is fixedly connected to the bottom of the fixing plate frame. A rotating shaft is movably connected to the mounting bracket. A winding wheel II is fixedly connected to the outer side of the top end of the rotating shaft. Winding ropes II are wound around the outer side of the winding wheel II. One end of each of the two winding ropes II is fixedly connected to the corresponding sliding member.

[0012] In a preferred embodiment, a gear is fixedly connected to the outer side of the end of the rotating shaft away from the winding wheel II. An electric telescopic rod is fixedly connected to the bottom of the mounting bracket. A toothed rod is fixedly connected to the driving end of the electric telescopic rod. The toothed rod meshes with the gear.

[0013] In a preferred embodiment, a plurality of rotating holes are equidistantly formed in the mounting frame. Conveying rollers are movably connected in the plurality of rotating holes. Driving wheels are fixedly connected to the outer sides of one ends of the plurality of conveying rollers. The outer sides of the plurality of driving wheels are drivingly connected to the same transmission belt. A driving motor is fixedly connected to one side of the mounting frame. The output end of the driving motor is fixedly connected to one end of the corresponding conveying roller.

[0014] In a preferred embodiment, two cylinders are fixedly connected to the main frame body. The driving ends of the two cylinders are fixedly connected to the same upper die base. A plurality of guide sleeves are fixedly connected to the bottom of the upper die base. A plurality of guide rods are slidably connected to the upper die base at equal intervals. One ends of the plurality of guide rods away from the upper die base are fixedly connected to the same upper template. Springs I are wound around the outer parts of the plurality of guide rods. One ends of the plurality of Springs I are fixedly connected to the upper die base, and the other ends are fixedly connected to the upper template. And a lower die base is fixedly connected to the main frame body. A lower template and a plurality of guide columns are fixedly connected to the top of the lower die base.

[0015] As can be seen from the above, an automatic continuous stamping die for the back beam of a sewing machine frame provided by the present invention can continuously reciprocally pull both sides of a thin steel strip during the conveying process, eliminate irregular deformations such as bending and twisting generated during the conveying process in real time, continuously maintain the flat and stretched state of the steel strip, avoid positioning deviation and uneven stress during subsequent stamping caused by local unevenness, effectively improve the precision and quality of the finished product, and reduce the die loss and scrap rate caused by the unevenness of the plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic diagram of the overall structure of an automatic continuous stamping die for the back beam of a sewing machine frame proposed by the present invention; Figure 2 is a schematic diagram of the structure at the main frame body of an automatic continuous stamping die for the back beam of a sewing machine frame proposed by the present invention; Figure 3 is a schematic diagram of the structure at the installation frame of an automatic continuous stamping die for the back beam of a sewing machine frame proposed by the present invention; Figure 4 is a schematic diagram of the structure of the pulling and leveling module of an automatic continuous stamping die for the back beam of a sewing machine frame proposed by the present invention; Figure 5 is a schematic diagram of the structure at the hollow tube of the pulling and leveling module of an automatic continuous stamping die for the back beam of a sewing machine frame proposed by the present invention; Figure 6 is a schematic diagram of the structure of the deviation correction module of an automatic continuous stamping die for the back beam of a sewing machine frame proposed by the present invention; Figure 7 is a schematic diagram of the structure at the mounting frame of the deviation correction module of an automatic continuous stamping die for the back beam of a sewing machine frame proposed by the present invention.

[0017] In the figure: 1, main frame body; 2, workbench; 3, upper die base; 4, lower die base; 5, pulling and leveling module; 501, hydraulic rod; 502, connecting plate frame; 503, connecting column; 504, second spring; 505, general motor; 506, first winding wheel; 507, first winding rope; 508, rotating frame; 509, guiding wheel; 510, hollow tube; 511, sliding seat; 512, movable sleeve; 513, fixing piece; 514, third spring; 515, movable plate frame; 6, deviation rectifying module; 601, fixing plate frame; 602, sliding rod; 603, fourth spring; 604, sliding piece; 605, mounting seat; 606, movable wheel; 607, mounting frame; 608, second winding rope; 609, second winding wheel; 610, rotating shaft; 611, gear; 612, electric telescopic rod; 613, toothed rod; 7, cylinder; 8, guide rod; 9, first spring; 10, upper template; 11, guide sleeve; 12, lower template; 13, guide post; 14, mounting frame; 15, conveying roller; 16, driving motor; 17, driving wheel; 18, transmission belt. Detailed implementation manner

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0019] An automated continuous stamping die for the back beam of a sewing machine frame disclosed by the present invention is mainly applied to scenarios where thin steel strips are prone to deformation due to twisting or local depression, and direct stamping will cause die wear and reduce the quality of workpieces.

[0020] Refer to Figures 1-7 , an automated continuous stamping die for the back beam of a sewing machine frame, including a main frame body 1; Workbench 2, the workbench 2 is located on one side of the main frame body 1; Mounting frame 14, the bottom of the mounting frame 14 is fixedly connected to the inner wall of the workbench 2; Pulling and leveling module 5, the pulling and leveling module 5 is arranged inside the workbench 2, the pulling and leveling module 5 includes a hollow tube 510, two symmetrically arranged sliding seats 511 are slidably connected to the outside of the hollow tube 510, and movable sleeves 512 are movably connected to the outside of the two sliding seats 511. The pulling and leveling module 5 levels the deformation of the thin steel strip during the conveying process due to twisting or local depression; Deviation rectifying module 6, the deviation rectifying module 6 is arranged on the mounting frame 14, the deviation rectifying module 6 includes two sliding pieces 604, mounting seats 605 are fixedly connected to the tops of the two sliding pieces 604, two round holes are opened on each of the two mounting seats 605, and movable wheels 606 are rotatably connected in the plurality of round holes. The deviation rectifying module 6 corrects the position deviation generated during the conveying process of the thin steel strip.

[0021] Refer to Figure 1 、 Figure 4 and Figure 5 As shown in FIGS.

[0022] Refer to Figure 1 、 Figure 4 and Figure 5 The pulling and leveling module 5 further includes two hydraulic rods 501, and two mounting holes are provided on the workbench 2. The two hydraulic rods 501 are fixedly connected to the corresponding mounting holes respectively, and the driving ends of the two hydraulic rods 501 are fixedly connected to the same connecting plate frame 502.

[0023] Refer to Figure 1 、 Figure 4 and Figure 5 As shown in FIGS.

[0024] Refer to Figure 1 、 Figure 4 and Figure 5 Two symmetric fixing members 513 are fixedly connected to the outside of the hollow tube 510, and two spring threes 514 are wound around the outside of the hollow tube 510. One end of each of the two spring threes 514 is fixedly connected to the corresponding fixing member 513, and the other end is fixedly connected to the corresponding sliding seat 511.

[0025] In a specific application scenario, both movable sleeves 512 are arranged directly above one of the conveying rollers 15. The hydraulic rod 501 pushes the connecting plate frame 502 downward. When the movable sleeve 512 contacts the top of the thin steel strip, the elastic action of the second spring 504 and the bottom conveying roller 15 cooperate to clamp the steel strip tightly. The general motors 505 on both sides are synchronously started to tighten the first winding rope 507, pulling the sliding seat 511 and the movable sleeve 512 to compress the third spring 514 and slide to both sides, pulling and flattening the steel strip. Then, the hydraulic rod 501 contracts to drive the connecting plate frame 502 to rise, the general motor 505 relaxes the first winding rope 507, and the third spring 514 elastically restores to push the sliding seat 511 to reset. Repeating this process can continuously pull and flatten the steel strip, eliminating irregular deformations such as bending and twisting generated during the conveying process in real time, continuously maintaining the steel strip in a flat and stretched state, avoiding positioning deviation and uneven stress in subsequent stamping due to local unevenness, effectively improving the precision and quality of the finished product, and reducing die loss and scrap rate caused by unevenness of the sheet material.

[0026] Refer to Figure 1 、 Figure 6 and Figure 7 As shown in FIGS.

[0027] Refer to Figure 1 、 Figure 6 and Figure 7 The bottom of the fixed plate frame 601 is fixedly connected with a mounting frame 607, and a rotating shaft 610 is movably connected to the mounting frame 607. A second winding wheel 609 is fixedly connected to the outer part of the top end of the rotating shaft 610. Two second winding ropes 608 are wound around the outer part of the second winding wheel 609, and one end of each of the two second winding ropes 608 is fixedly connected to the corresponding sliding member 604.

[0028] Refer to Figure 1 、 Figure 6 and Figure 7 A gear 611 is fixedly connected to the outer part of the end of the rotating shaft 610 away from the second winding wheel 609, and an electric telescopic rod 612 is fixedly connected to the bottom of the mounting frame 607. A toothed rod 613 is fixedly connected to the driving end of the electric telescopic rod 612, and the toothed rod 613 meshes with the gear 611.

[0029] Refer to Figure 1 and Figure 3, a plurality of rotating holes are equidistantly formed in the installation frame 14, a plurality of conveying rollers 15 are movably connected in the plurality of rotating holes, a driving wheel 17 is fixedly connected to the outside of one end of each of the plurality of conveying rollers 15, the outside of the plurality of driving wheels 17 is drivingly connected to the same transmission belt 18, and a driving motor 16 is fixedly connected to one side of the installation frame 14, and the output end of the driving motor 16 is fixedly connected to one end of the corresponding conveying roller 15.

[0030] Referring to Figure 1 and Figure 2 , two cylinders 7 are fixedly connected to the main frame body 1, the driving ends of the two cylinders 7 are fixedly connected to the same upper die base 3, a plurality of guide sleeves 11 are fixedly connected to the bottom of the upper die base 3, a plurality of guide rods 8 are slidably connected to the upper die base 3 at equal intervals, one end of each of the plurality of guide rods 8 away from the upper die base 3 is fixedly connected to the same upper template 10, a first spring 9 is wound around the outside of each of the plurality of guide rods 8, one end of each of the plurality of first springs 9 is fixedly connected to the upper die base 3, and the other end of each of the plurality of first springs 9 is fixedly connected to the upper template 10, and a lower die base 4 is fixedly connected to the main frame body 1, and a lower template 12 and a plurality of guide posts 13 are fixedly connected to the top of the lower die base 4.

[0031] In a specific application scenario, the electric telescopic rod 612 pulls the rack 613, and through the mutual meshing of the rack 613 and the gear 611, drives the rotating shaft 610 and the second winding wheel 609 to rotate, tightens the second winding rope 608, pulls the two sliding members 604 to slide towards the center against the elastic action of the fourth spring 603, and pushes the steel belt being transported towards the center through the movable wheel 606. The electric telescopic rod 612 reciprocates continuously, so that the deviation correction module 6 continuously corrects the position of the steel belt, and at the same time avoids edge wear and jamming caused by the rigid constraint of the fixed limiting mechanism.

[0032] Working principle: Start the driving motor 16 to drive the conveying roller 15 to rotate through the transmission belt 18 to convey the thin steel belt. Start the electric telescopic rod 612 to pull the rack 613, and through the mutual meshing of the rack 613 and the gear 611, drive the rotating shaft 610 and the second winding wheel 609 to rotate, tighten the second winding rope 608, pull the two sliding members 604 to slide towards the center against the elastic action of the fourth spring 603, and push the steel belt being transported towards the center through the movable wheel 606. The electric telescopic rod 612 reciprocates continuously, so that the deviation correction module 6 continuously corrects the position of the steel belt, and at the same time avoids edge wear and jamming caused by the rigid constraint of the fixed limiting mechanism; The starting hydraulic rod 501 pushes the connecting plate frame 502 to descend. When the movable sleeve 512 contacts the top of the thin steel strip, the elastic action of the second spring 504 cooperates with the bottom conveying roller 15 to press the steel strip tightly. The general motors 505 on both sides are synchronously started to rotate the first winding wheel 506, tighten the first winding rope 507, pull the sliding seat 511 and the movable sleeve 512 to slide to both sides by compressing the third spring 514, and pull and flatten the steel strip. Then, the hydraulic rod 501 contracts to drive the connecting plate frame 502 to rise, the general motor 505 relaxes the first winding rope 507, and the third spring 514 elastically restores to push the sliding seat 511 to reset. This process is repeated continuously to pull and flatten the steel strip, eliminate irregular deformations such as bending and twisting generated during the conveying process in real time, continuously maintain the flat and stretched state of the steel strip, avoid positioning deviation and uneven stress in subsequent stamping caused by local unevenness, effectively improve the precision and quality of the finished product, and reduce the die loss and scrap rate caused by unevenness of the sheet. The thin steel strip after deviation correction and leveling is sent above the lower template 12, and the cylinder 7 is started to push the upper die holder 3 to complete stamping.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. An automated continuous stamping die for the back beam of a sewing machine frame, characterized in that Including a main frame body (1); A workbench (2), the workbench (2) is located on one side of the main frame body (1); An installation frame (14), the bottom of the installation frame (14) is fixedly connected to the inner wall of the workbench (2); A pulling and leveling module (5), the pulling and leveling module (5) is arranged inside the workbench (2), the pulling and leveling module (5) includes a hollow tube (510), two symmetrically arranged sliding seats (511) are slidably connected to the outside of the hollow tube (510), movable sleeves (512) are movably connected to the outside of the two sliding seats (511), and the pulling and leveling module (5) levels the deformation of the thin steel strip during the conveying process due to twisting or local depression; A deviation correction module (6), the deviation correction module (6) is arranged on the installation frame (14), the deviation correction module (6) includes two sliding members (604), mounting seats (605) are fixedly connected to the tops of the two sliding members (604), two circular holes are opened on each of the two mounting seats (605), movable wheels (606) are rotatably connected in the multiple circular holes, and the deviation correction module (6) corrects the position deviation generated during the conveying process of the thin steel strip.

2. The automated continuous stamping die for the back beam of a sewing machine frame according to claim 1, wherein The pulling and leveling module (5) further includes two hydraulic rods (501), and two mounting holes are opened on the workbench (2), the two hydraulic rods (501) are fixedly connected in the corresponding mounting holes, and a connecting plate frame (502) is fixedly connected to the driving ends of the two hydraulic rods (501).

3. An automated continuous stamping die for the back beam of a sewing machine frame according to claim 2, characterized in that, Two connecting columns (503) are fixedly connected to the bottom of the connecting plate frame (502), a movable plate frame (515) is slidably connected to the outside of the two connecting columns (503), two second springs (504) are wound around the outside of the two connecting columns (503), one ends of the two second springs (504) are fixedly connected to the connecting plate frame (502), the other ends are fixedly connected to the movable plate frame (515), and a fixing hole is opened on the movable plate frame (515), and the hollow tube (510) is fixedly connected in the fixing hole.

4. An automated continuous stamping die for the back beam of a sewing machine frame according to claim 3, characterized in that, Two universal motors (505) are fixedly connected to the bottom of the movable plate frame (515), winding wheels one (506) are fixedly connected to the output ends of the two universal motors (505), winding ropes one (507) are wound around the outside of the two winding wheels one (506), one ends of the two winding ropes one (507) far away from the winding wheels one (506) are fixedly connected to the corresponding sliding seats (511), and two symmetrically arranged rotating frames (508) are fixedly connected to the movable plate frame (515), guiding wheels (509) are rotatably connected to the two rotating frames (508), and the two winding ropes one (507) slide on the outer walls of the corresponding guiding wheels (509).

5. The automated continuous stamping die for the back beam of a sewing machine frame according to claim 4, characterized in that, Two symmetrically arranged fixing members (513) are fixedly connected to the outside of the hollow tube (510), and two third springs (514) are wound around the outside of the hollow tube (510), one ends of the two third springs (514) are fixedly connected to the corresponding fixing members (513), and the other ends are fixedly connected to the corresponding sliding seats (511).

6. An automated continuous stamping die for the back beam of a sewing machine frame according to claim 5, characterized in that, The deviation correction module (6) further includes a fixed plate frame (601), the fixed plate frame (601) is fixedly connected to the bottom of the installation frame (14), two sliding rods (602) are fixedly connected to the fixed plate frame (601), both of the two sliding members (604) slide outside the corresponding sliding rods (602), and coil springs four (603) are wound around the outside of both of the two sliding rods (602). One end of each of the two coil springs four (603) is fixedly connected to the corresponding sliding member (604), and the other end of each is fixedly connected to the fixed plate frame (601).

7. An automated continuous stamping die for the back beam of a sewing machine frame according to claim 6, characterized in that, An installation frame (607) is fixedly connected to the bottom of the fixed plate frame (601), and a rotating shaft (610) is movably connected to the installation frame (607). A second winding wheel (609) is fixedly connected to the outside of the top end of the rotating shaft (610). Two winding ropes two (608) are wound around the outside of the second winding wheel (609). One end of each of the two winding ropes two (608) is fixedly connected to the corresponding sliding member (604).

8. An automated continuous stamping die for the back beam of a sewing machine frame according to claim 7, characterized in that, A gear (611) is fixedly connected to the outside of the end of the rotating shaft (610) away from the second winding wheel (609), and an electric telescopic rod (612) is fixedly connected to the bottom of the installation frame (607). A toothed rod (613) is fixedly connected to the driving end of the electric telescopic rod (612), and the toothed rod (613) meshes with the gear (611).

9. An automated continuous stamping die for the back beam of a sewing machine frame according to claim 8, characterized in that, A plurality of rotating holes are equidistantly formed in the installation frame (14), and conveying rollers (15) are movably connected in the plurality of rotating holes. A driving wheel (17) is fixedly connected to the outside of one end of each of the plurality of conveying rollers (15), and the outside of the plurality of driving wheels (17) is drivingly connected to the same transmission belt (18). A driving motor (16) is fixedly connected to one side of the installation frame (14), and the output end of the driving motor (16) is fixedly connected to one end of the corresponding conveying roller (15).

10. An automated continuous stamping die for the back beam of a sewing machine frame according to claim 9, characterized in that, Two cylinders (7) are fixedly connected to the main frame body (1). The driving ends of the two cylinders (7) are fixedly connected to the same upper die base (3). A plurality of guide sleeves (11) are fixedly connected to the bottom of the upper die base (3). A plurality of guide rods (8) are slidably connected to the upper die base (3) at equal intervals. One end of each of the plurality of guide rods (8) away from the upper die base (3) is fixedly connected to the same upper template (10). Coil springs one (9) are wound around the outside of the plurality of guide rods (8). One end of each of the plurality of coil springs one (9) is fixedly connected to the upper die base (3), and the other end of each is fixedly connected to the upper template (10). A lower die base (4) is fixedly connected to the main frame body (1), and a lower template (12) and a plurality of guide posts (13) are fixedly connected to the top of the lower die base (4).

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