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CN-224219569-U - Upper die punch rod device of button sewing machine

CN224219569UCN 224219569 UCN224219569 UCN 224219569UCN-224219569-U

Abstract

The technical scheme belongs to the technical field of button sewing machines, and particularly relates to an upper die punch rod device of a button sewing machine, which is used for being movably connected to the button sewing machine and comprises an upper press rod, wherein a sinking groove is formed in the upper press rod, the upper punch rod penetrates through the upper press rod and is connected with the upper press rod in a sliding manner, a limiting piece is arranged on the upper punch rod in a penetrating manner, the limiting piece is connected to the upper end part of the sinking groove, the lower end of the upper punch rod is connected with a stamping die, a recoil elastic piece is limited in the sinking groove through a fastener, two ends of the recoil elastic piece respectively act on the limiting piece and the fastener, the elastic force of the recoil elastic piece pushes the limiting piece to abut against a step surface of the sinking groove, when the upper press rod descends, the elastic force of the recoil elastic piece is used for pushing the stamping die to match with the stitching material, and the rigid impact is effectively absorbed through an elastic buffer mechanism, so that flexible contact is formed in the stamping process, the button sewing forming quality is ensured, the rigid collision loss between the die and the main body of the device is reduced, and the service life of the device is prolonged.

Inventors

  • CHEN BIN

Assignees

  • 浙江中森缝纫机有限公司

Dates

Publication Date
20260512
Application Date
20250528

Claims (6)

  1. 1. An upper die punch rod device of button sewing machine for swing joint is on button sewing machine, its characterized in that includes: an upper pressing rod (1), wherein the upper pressing rod (1) is provided with a sinking groove (2); The upper punch rod (3) is arranged in the upper press rod (1) in a penetrating mode, the upper punch rod (3) is connected with the upper press rod (1) in a sliding mode, the upper punch rod (3) is provided with a limiting piece (4), the limiting piece (4) is connected with the upper end portion of the upper punch rod (3) which is arranged on the upper end portion of the sinking groove (2) in a penetrating mode, and the lower end of the upper punch rod (3) is connected with a stamping die (5); The recoil elastic piece (6) is limited in the sinking groove (2) through the fastening piece (16), two ends of the recoil elastic piece (6) respectively act on the limiting piece (4) and the fastening piece (16), the elastic force of the recoil elastic piece pushes the limiting piece (4) to be abutted against the step surface of the sinking groove (2), when the upper pressing rod (1) descends, the recoil elastic piece (6) is close to the stitching material, and the elastic force of the recoil elastic piece (6) is used for pushing the punching die (5) to match the stitching material.
  2. 2. The upper die punch rod device of button sewing machine according to claim 1, wherein the punch die (5) comprises: an upper die (51), wherein the upper die (51) is protruded with a positioning pin (8); A spring jacket (52) provided on the upper die (51) and sleeved on the positioning pin (8); The nut (53) is sleeved on the outer side of the spring jacket (52), a limiting ring surface (7) is formed in the inner wall of the nut (53), the lower end of the spring jacket (52) is abutted to the limiting ring surface (7), a connecting groove (9) is formed in the lower end of the upper punch rod (3), when the nut (53) is connected with the upper punch rod (3), the upper end of the spring jacket (52) is embedded into the connecting groove (9), the nut (53) extrudes the spring jacket (52) through the limiting ring surface (7), and the spring jacket (52) is clamped on the positioning pin (8).
  3. 3. The upper die punch rod device of the button sewing machine according to claim 2, wherein the connecting groove (9) is provided with a guide ring surface (13) along the inner wall, the guide ring surface (13) enables the connecting groove (9) to be arranged in a flaring way outwards towards the direction away from the limiting piece (4), and the spring jacket (52) is matched with the guide ring surface (13).
  4. 4. The upper punch rod device of the button sewing machine according to claim 2, wherein the upper punch rod (3) is provided with a connecting portion (10), the connecting portion (10) is located at one end, far away from the limiting piece (4), of the upper punch rod (3), the connecting portion (10) is internally provided with the connecting groove (9) correspondingly, and the connecting portion (10) is provided with an external thread structure (11) for threaded connection of a nut (53).
  5. 5. The upper die punch rod device of the button sewing machine according to claim 4, wherein the upper press rod (1) is further provided with a positioning groove (15), the positioning groove (15) is located at one end, far away from the sinking groove (2), of the upper press rod (1), a positioning surface (12) is arranged on one side, opposite to the penetrating end, of the positioning groove (15), the connecting portion (10) is embedded into the positioning groove (15), and the positioning surface (12) is used for enabling the connecting portion (10) to abut against.
  6. 6. The upper die punch rod device of the button sewing machine according to claim 1, wherein the side wall of the upper press rod (1) is provided with tooth grooves (14) for being meshed with gears at the output end of a driving device in the button sewing machine.

Description

Upper die punch rod device of button sewing machine Technical Field The technical scheme relates to the technical field of button sewing machines, in particular to an upper die punch rod 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. The existing button sewing machine rivets buttons by using an upper die and a lower die in the use process, a driving piece drives an upper punch rod to move up and down through a gear with a driving output end meshed with the side wall of the upper punch rod, impact load directly acts on the tail end of the upper punch rod during punching, and due to the thickness difference and hardness change of clothing fabric, the fabric/buttons are damaged due to the fact that the punching overload is carried out in a thin material area, gear tooth breakage and punch rod microcrack expansion are caused by impact force mutation in a thick material area, a rigid impact mode cannot be adjusted in a self-adaptive mode, durability and processing consistency of damaged equipment are used for a long time, and service life is shortened. Disclosure of Invention The technical scheme provides an upper die punch rod device of the button sewing machine for solving the problem that the service life of equipment is reduced because the rigid impact load of an upper die of the existing button sewing machine cannot be adjusted in a self-adaptive mode. The technical scheme aims at realizing the following steps: An upper die punch rod device of a button sewing machine, which is used for being movably connected on the button sewing machine, and comprises: the upper pressing rod is provided with a sinking groove; the upper punch rod is arranged in the upper pressing rod in a penetrating mode, the upper punch rod is connected with the upper pressing rod in a sliding mode, the upper punch rod is provided with a limiting piece, the limiting piece is connected with the upper punch rod, the upper end portion of the sinking groove is arranged in a penetrating mode, and the lower end of the upper punch rod is connected with a stamping die; The recoil elastic piece is limited in the sinking groove through the fastening piece, two ends of the recoil elastic piece respectively act on the limiting piece and the fastening piece, the elastic force of the recoil elastic piece pushes the limiting piece to be abutted against the step surface of the sinking groove, when the upper pressing rod descends, the recoil elastic piece is close to the stitching material, and the elastic force of the recoil elastic piece is used for pushing the stamping die to match the stitching material. Through the technical scheme, when the upper die punch rod device of the button sewing machine is normally used, the upper press rod is movably connected with the button sewing machine, the upper press rod moves downwards along the axial direction when equipment is started, the elastic force of the recoil elastic piece pushes the upper punch rod to keep the initial position through the abutting connection of the limiting piece and the step surface of the sinking section under the normal state, the recoil elastic piece compresses between the fastening piece and the limiting piece along with the continuous downward pressing of the upper press rod to the contact seam material stage, at the moment, the impact load is adaptively adjusted by the stamping die connected with the lower end of the upper punch rod under the buffer action of the recoil elastic piece, after the stamping action is finished, the recoil elastic piece pushes the upper punch rod to reset, the rigid impact is effectively absorbed through the elastic buffer mechanism, so that the flexible contact is formed in the stamping process, the button sewing forming quality is ensured, the rigid collision loss between the die and the equipment main body is reduced, and the service life of the equipment is prolonged. Preferably, the stamping die includes: the upper die is provided with a positioning pin in a protruding mode; The spring jacket is arranged on the upper die and sleeved on the positioning pin; The nut is sleeved on the outer side of the spring clamp sleeve, the inner wall of the nut is provided with a limiting ring surface, the lower end of the spring clamp sleeve is abutted to the limiting ring surface, the lower end of the upper punch rod is provided with a connecting groove, when the nut is connected with the upper punch rod, the upper end of the spring clamp sleeve is embedded into the connecting groove, and the nut extrudes the spring clamp sleeve through the limiting ring surface, so that the spri