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CN-224219570-U - Lower die core fixing device of button sewing machine

CN224219570UCN 224219570 UCN224219570 UCN 224219570UCN-224219570-U

Abstract

The technical scheme includes that the lower die core fixing device of the button sewing machine comprises a lower die base, a lower die block, a lower die connecting rod, at least two fixed mounting mechanisms and an elastic piece, wherein the lower die core fixing device is movably arranged on the lower die base, an elastic piece I is arranged between the lower die block and the lower die base, elastic force enables the lower die block to move away from the lower die base, a material preparation hole is formed in the lower die block, the upper end of the lower die connecting rod penetrates through the material preparation hole, a material passing groove communicated with the material preparation hole is formed in the lower die block, the fixed mounting mechanisms at least are movably arranged on the lower die base and comprise a lower sliding block, a fixed mounting clamping piece and an elastic piece II, the elastic piece II is arranged between the lower sliding block and the lower die base, the elastic piece II supports the fixed mounting clamping piece, the lower die block and the lower sliding block are respectively provided with a guide surface I and a guide surface II, the lower die block can move between a first position and a second position, the lower die block enters the material preparation hole through a material groove and is arranged at the top end of the lower die connecting rod, the lower die connecting rod is pushed to the fixed mounting mechanism outwards through two guide surfaces to the upper end when the lower die connecting rod moves to the second position, and the lower die block reaches the second position and the upper end opening of the material preparation hole.

Inventors

  • CHEN BIN

Assignees

  • 浙江中森缝纫机有限公司

Dates

Publication Date
20260512
Application Date
20250528

Claims (9)

  1. 1. The utility model provides a lower mould centering device of button sewing machine which characterized in that includes: A lower die holder (1); The lower module (2) is movably arranged on the lower die holder (1), an elastic piece I (6) is arranged between the lower module (2) and the lower die holder (1), the elastic force of the elastic piece I (6) enables the lower module (2) to have a trend of moving away from the lower die holder (1), and the lower module (2) is provided with a material preparation hole (5); The upper end of the lower die connecting rod (4) is penetrated in the material preparation hole (5), the lower module (2) is provided with a material passing groove (12), and the material passing groove (12) is communicated with the material preparation hole (5) to the outside; The fixed mounting mechanisms (3) are movably arranged on the lower die holder (1), the fixed mounting mechanisms (3) comprise lower sliding blocks (31) sliding on the lower die holder (1), fixed mounting clamping pieces (32) sliding on the lower sliding blocks (31) and elastic pieces II (33) arranged on the lower sliding blocks (31), the elastic pieces II (33) are positioned between the corresponding lower sliding blocks (31) and the lower die holder (1), and the elastic pieces II (33) prop against the fixed mounting clamping pieces (32) so that the corresponding lower sliding blocks (31) have a sliding trend close to the lower die holder (2); The lower module (2) is provided with a first guide surface (10), the lower sliding block (31) is correspondingly provided with a second guide surface (11), the lower module (2) can move between a first position and a second position, when the lower module (2) is positioned at the first position, the bottom buckle enters the material preparation hole (5) through the material passing groove (12) and is placed at the upper end of the lower die connecting rod (4), in the process that the lower module (2) moves towards the second position, the lower module (2) pushes the fixed assembly mechanism (3) to move towards a direction far away from the lower module (2) through the guide of the first guide surface (10) and the second guide surface (11), and when the lower module (2) is positioned at the second position, the bottom buckle is exposed out of the upper end opening of the material preparation hole (5).
  2. 2. The lower die core fixing device of the button sewing machine according to claim 1, wherein the side walls of the lower die block (2) are provided with clamping channels (7) in one-to-one correspondence with the fixing mechanism (3), and the clamping channels (7) are communicated with the material preparation holes (5).
  3. 3. The lower die core fixing device of a button sewing machine according to claim 2, wherein the fixing and clamping members (32) comprise: The fixed fixture (321) is arranged in the corresponding lower slider (31) in a sliding manner, the sliding direction of the fixed fixture (321) is arranged in the sliding direction of the lower module (2), the fixed fixture (321) comprises a clamping head (3211), a guide rod (3212) and a limiting block (3213), the lower slider (31) is provided with a guide hole (20), the guide rod (3212) penetrates through the guide hole (20), the clamping head (3211) and the limiting block (3213) are respectively connected to the two ends of the guide rod (3212), and the clamping end of the clamping head (3211) extends towards the direction of the material preparation hole (5); The elastic reset piece (322) is sleeved on the corresponding guide rod (3212), two ends of the elastic reset piece (322) respectively act on opposite end surfaces of the lower slider (31) and the clamping head (3211), and the elastic force of the elastic reset piece (322) enables the fixed clamp (321) to have a sliding trend away from the lower slider (31).
  4. 4. The lower die core fixing device of the button sewing machine according to claim 3, wherein the end part of the guide rod (3212) is provided with a clamping groove (9) for clamping the upper part of the bottom button (100).
  5. 5. The lower die core fixing device of the button sewing machine according to claim 3, wherein the lower die holder (1) is provided with a boss portion (13), the lower slider (31) abuts against the corresponding boss portion (13), the boss portion (13) is provided with a yielding groove (14), the limiting block (3213) is movably arranged in the yielding groove (14), and the boss portion (13) is provided with a yielding surface (15) corresponding to the first guide surface (10).
  6. 6. The lower die core fixing device of the button sewing machine according to claim 1, wherein the lower slider (31) is provided with a guide shaft (16), the lower die holder (1) is provided with a through hole (17), and the guide shaft (16) penetrates through the through hole (17).
  7. 7. The lower die core fixing device of the button sewing machine of claim 1, wherein the side wall of the lower slider (31) is provided with a first clamping groove (181), the corresponding part of the lower die holder (1) is provided with a second clamping groove (182), and two ends of the second elastic piece (33) are respectively embedded into the first clamping groove (181) and the second clamping groove (182).
  8. 8. The lower die core fixing device of the button sewing machine of claim 3, wherein the lower slider (31) is provided with a first avoiding groove (191) for embedding a clamping head (3211), and a second avoiding groove (192) is arranged at a corresponding position of the lower die block (2) for embedding an elastic reset piece (322).
  9. 9. The lower die core fixing device of the button sewing machine according to claim 1, wherein the lower die connecting rod (4) is provided with a positioning groove (8) for embedding the lower part of the bottom button (100).

Description

Lower die core fixing device of button sewing machine Technical Field The technical scheme relates to the technical field of button sewing machines, in particular to a lower die core fixing device of the button sewing machine. Background The button sewing machine is an automatic sewing device and is specially used for fixing buttons on fabrics such as clothes, bags and suitcases, and the button sewing machine ensures firmness by adopting lock stitch or chain stitch through button feeding, positioning and stitching, and can adapt to types such as flat buttons, I-shaped buttons and the like with different specifications. For example, chinese patent CN203073026U discloses a full-automatic button-feeding button machine, which comprises a machine head, a master cylinder, a central button control device, a surface button circulation device and a bottom button circulation device, wherein the bottom button circulation device comprises a machine head base, a tail cylinder, a bottom button pushing rod, a bottom button rail support, a bottom button rail, a bottom button die and a bottom button adjusting nut, the bottom button is used for feeding buttons into the adjustable bottom button rail under the action of the bottom button rail, the bottom button enters the base pushing rod, the bottom button is fed into the bottom button die under the action of the tail cylinder, the central cylinder in the surface button circulation device pushes the surface button into the button die with the button grabbing capability, after the bottom button pushing rod is retracted, the corresponding position of clothes is placed between the bottom button die and the button die, and the master cylinder is pressed to enable the buttons and the bottom buttons to be pinned on the clothes. The full-automatic button feeding and fastening machine has the advantages that the bottom button on the bottom button die is automatically fed through the bottom button track, the assembly gap exists between the bottom button track and the bottom button die positioning area, the main cylinder drives the vibration interference during the pressing down of the button die, the bottom button is easy to radially deviate in the initial stage of punching, the dynamic positioning error is difficult to compensate, the follow-up riveting position deviation exceeds standard, the button inclination of the lower die, the riveting strength reduction and the abnormal abrasion of the die are easy to cause, the yield is reduced, the production quality is influenced, and the improvement is needed. Disclosure of Invention The technical scheme provides the lower die core fixing device of the button sewing machine for improving the problems that dynamic positioning error compensation is difficult and riveting position deviation is caused by assembly clearance and vibration interference of the bottom button die, so that production quality is poor. The technical scheme aims at realizing the following steps: a lower die core fixing device of a button sewing machine, comprising: A lower die holder; The lower module is movably arranged on the lower die holder, an elastic piece I is arranged between the lower module and the lower die holder, the elastic force of the elastic piece I enables the lower module to have a trend of moving away from the lower die holder, and the lower module is provided with a material preparation hole; The upper end of the lower die connecting rod is penetrated in the material preparing hole, the lower module is provided with a material passing groove, and the material passing groove is communicated with the material preparing hole to the outside; The fixed mounting mechanisms are movably arranged on the lower die holders and comprise lower sliding blocks sliding on the lower die holders, fixed mounting clamping pieces sliding on the lower sliding blocks and elastic pieces II arranged on the lower sliding blocks, wherein the elastic pieces II are positioned between the corresponding lower sliding blocks and the lower die holders, and the elastic pieces II prop against the fixed mounting clamping pieces so that the corresponding lower sliding blocks have a trend of sliding close to the lower modules; The lower module is provided with a first guide surface, the lower sliding block is correspondingly provided with a second guide surface, the lower module can move between a first position and a second position, when the lower module is positioned at the first position, the bottom buckle enters the material preparation hole through the material passing groove and is placed at the upper end of the lower die connecting rod, in the process that the lower module moves to the second position, the lower module pushes the fixed assembly mechanism to move towards a direction far away from the lower module through the first guide surface and the second guide surface, and when the lower module is positioned at the second position, the bottom buckle is exposed out of the up