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CN-224227409-U - Sewing machine vibration reduction structure and sewing machine

CN224227409UCN 224227409 UCN224227409 UCN 224227409UCN-224227409-U

Abstract

The utility model discloses a vibration reduction structure of a sewing machine and the sewing machine, which belong to the technical field of sewing machines, and comprise a bedplate, wherein a mounting groove is formed in the bedplate; the machine shell comprises a machine shell bottom plate, a head rubber gasket, a tail rubber gasket and a tail rubber gasket, wherein the machine shell bottom plate is arranged in a mounting groove, the head rubber gasket is arranged between the head of a bedplate and the head of the machine shell bottom plate, the hardness of the head rubber gasket is 50-60HA, the tail rubber gasket is arranged between the tail of the bedplate and the tail of the machine shell bottom plate, and the hardness of the tail rubber gasket is 70-80HA. The utility model not only realizes the improvement of the vibration isolation rate of the whole machine, improves the stability of the bedplate, reduces the uncomfortable feeling when an operator contacts with the sewing machine and effectively ensures the physical and psychological health of the user, but also has the advantages of simple structure, low cost and high economical practicability.

Inventors

  • WANG FANG
  • SUN BIAO

Assignees

  • 浙江杰克智能缝制科技有限公司

Dates

Publication Date
20260512
Application Date
20250522

Claims (9)

  1. 1. A vibration damping structure for a sewing machine, comprising: a bedplate (1), wherein a mounting groove is formed in the bedplate (1); The shell bottom plate (2), the said shell bottom plate (2) is set up in the mounting groove; The head rubber pad (3), the head rubber pad (3) is arranged between the head of the bedplate (1) and the head of the machine shell bottom plate (2), and the hardness of the head rubber pad (3) is 50-60HA; the tail rubber pad (4), tail rubber pad (4) set up between the afterbody of platen (1) and the afterbody of casing bottom plate (2), just the hardness of tail rubber pad (4) is 70-80HA.
  2. 2. A vibration damping structure of a sewing machine according to claim 1, characterized in that the hardness of the head rubber pad (3) is 55HA and the hardness of the tail rubber pad (4) is 75HA.
  3. 3. The vibration damping structure of a sewing machine according to claim 1 or 2, wherein the head rubber pad (3) and the tail rubber pad (4) each comprise an upper segment boss (11) and a lower segment cylinder (12), the bottom end of the upper segment boss (11) is fixedly connected with the top end of the lower segment cylinder (12), the outer side surfaces of the upper segment boss (11) and the lower segment cylinder (12) are coplanar, and an inner protruding strip (13) is formed on the inner side surface of the upper segment boss (11).
  4. 4. A vibration-damping structure for sewing machine according to claim 3, wherein the cross-section of the inner cam (13) is trapezoidal, triangular or semicircular.
  5. 5. A vibration reducing structure of a sewing machine according to claim 3, wherein the inner protruding strips (13) are arranged linearly on the inner side of the upper boss (11).
  6. 6. A vibration reducing structure of a sewing machine according to claim 3, wherein the inner protruding strips (13) are arranged in a cross line or lattice on the inner side of the upper boss (11).
  7. 7. A vibration reducing structure of a sewing machine according to claim 3, wherein the lower pillar (12) is provided with a lower protrusion (14) on a lower bottom surface thereof.
  8. 8. A vibration reducing structure of a sewing machine according to claim 3, wherein the upper top surface of the lower cylinder (12) is provided with an upper protrusion (15).
  9. 9. A sewing machine, characterized in that it comprises a sewing machine vibration damping structure according to any one of claims 1-8.

Description

Sewing machine vibration reduction structure and sewing machine Technical Field The utility model relates to the technical field of sewing machines, in particular to a vibration reduction structure of a sewing machine and the sewing machine. Background The rated working speed of the lockstitch sewing machine is generally over 4000rpm, and the torque generated by the motor is transmitted to the executing mechanisms such as the thorn cloth thread picking mechanism, the lifting feed mechanism, the rotating shuttle mechanism, the presser foot mechanism, the thread cutting mechanism and the like through the transmission part to execute the sewing action in a reciprocating and circulating way. Because the driving motor and the movement mechanism are contacted with the machine shell, the finally generated vibration is superimposed on the machine shell, the bottom plate of the machine shell is not rigidly connected with the upper surface of the bedplate, the vibration is amplified on the contact surface, if the table top vibrates severely, the hands of an operator have obvious vibration feeling, and the long-term contact can damage physical and mental health. Meanwhile, continuous unstable vibration can reduce sewing accuracy and machine life. In order to avoid adverse effects caused by vibration of the sewing machine, four rubber pads are generally used for isolating a machine shell bottom plate and a table plate of the sewing machine so as to buffer vibration energy of the machine shell bottom plate and reduce vibration feeling transmitted to hands by the table plate. But the NVH (noise, vibration and harshness (Noise, vibration, harshness) of English abbreviation) performance of the vibration damping structure of the existing flat seaming machine is relatively poor, especially the vibration isolation efficiency is generally lower than 90%, and the vibration feeling of the bedplate at a high rotating speed section is obvious, so that the subjective feeling of NVH is relatively poor. Along with the continuous promotion of sewing machine quality, market puts forward higher requirement to sewing machine's travelling comfort, and the rubber pad plays the key role in vibration transmission, and the damping performance of current rubber pad is urgent to need to improve, improves its holistic vibration isolation efficiency, reduces the vibration level of machine and platen. Therefore, how to solve the problems of unbalanced four-corner vibration and insufficient vibration isolation rate of the conventional vibration damping structure of the sewing machine is a technical problem to be solved by the person skilled in the art. Disclosure of Invention In view of the above, the present utility model aims to provide a vibration damping structure for a sewing machine, so as to solve the problems of unbalanced four-corner vibration and insufficient vibration isolation rate of the existing vibration damping structure for the sewing machine. The utility model adopts the technical scheme that the vibration reduction structure of the sewing machine comprises the following components: A bedplate, wherein the bedplate is provided with a mounting groove; the shell bottom plate is arranged in the mounting groove; The head rubber pad is arranged between the head of the bedplate and the head of the bottom plate of the shell, and the hardness of the head rubber pad is 50-60HA; The tail rubber pad is arranged between the tail of the bedplate and the tail of the bottom plate of the shell, and the hardness of the tail rubber pad is 70-80HA. Preferably, the hardness of the head rubber pad is 55HA, and the hardness of the tail rubber pad is 75HA. Preferably, the head rubber pad and the tail rubber pad comprise an upper section boss and a lower section cylinder, the bottom end of the upper section boss is fixedly connected with the top end of the lower section cylinder, the outer side surfaces of the upper section boss and the lower section cylinder are coplanar, and an inner protruding strip is formed on the inner side surface of the upper section boss. Preferably, the cross section of the inner convex strip is trapezoidal, triangular or semicircular. Preferably, the inner protruding strips are linearly arranged on the inner side surface of the upper-section boss. Preferably, the inner protruding strips are arranged on the inner side surface of the upper boss in a cross line or lattice mode. Preferably, a lower protruding strip is arranged on the lower bottom surface of the lower section cylinder. Preferably, an upper protruding strip is arranged on the upper top surface of the lower section cylinder. A second object of the present utility model is to provide a sewing machine including the above-mentioned sewing machine vibration reducing structure. The utility model has the beneficial effects that: According to the utility model, through changing the structure and material properties of the rubber pad, the vibration isolation rate of the whol