Punch rod mechanism and button sewing machine

Abstract

The utility model belongs to the technical field of button sewing machines, and particularly relates to a punch rod mechanism and a button sewing machine. A transmission gear is arranged at the output end of the driving part; part of the movable rod is movably arranged in the mounting cavity, the lower end of the movable rod penetrates out of the mounting frame, and the movable rod is located beside the transmission gear; wherein a rack part is formed on the movable rod, and the rack part is meshed with gear teeth of the transmission gear; when the driving piece drives the transmission gear to rotate, the movable rod can ascend and descend.

Description

Technical Field

[0001] This technical solution relates to the field of button attaching machine technology, specifically to a punching mechanism and a button attaching machine. Background Technology

[0002] Riveting machines, also known as button attaching machines, are widely used in garment factories and leather goods processing enterprises. They are mainly used to attach various types of metal buttons to knitted garments, down jackets, denim clothing, shoes, hats, leather products.

[0003] For example, Chinese Patent 202022765785.5 discloses a punching and fastening material handling mechanism for a riveting machine. This punching drive device includes a servo motor and a cam assembly. The transmission principle of the cam assembly is as follows: the cam assembly includes a cam connected to the output shaft of the reducer, an eccentric shaft set on the cam, a rotating sleeve and a moving seat fitted outside the eccentric shaft. In this transmission method, the punching rod will wobble when it is raised and lowered, which is not conducive to the stability of punching. In addition, the overall structure of this cam assembly is large and the cost is high, which leads to the overall size of the fastening machine being large and taking up too much space. Summary of the Invention

[0004] The purpose of this technical solution is to provide a punching rod mechanism and a button attaching machine. The driving component drives the transmission gear to rotate, and the transmission gear cooperates with the rack on the movable rod to realize the lifting and lowering of the movable rod, thus solving the problem of the original movable rod swaying and being unstable when lifting and lowering.

[0005] The purpose of this technical solution is achieved as follows:

[0006] A punching mechanism includes: a mounting frame having a mounting cavity; a driving member having a transmission gear at its output end; and a movable rod partially movably disposed within the mounting cavity, with its lower end extending out of the mounting frame, the movable rod being located beside the transmission gear; wherein, the movable rod has a rack portion formed thereon, the rack portion meshing with the teeth of the transmission gear; when the driving member drives the transmission gear to rotate, the movable rod can be raised and lowered.

[0007] Preferably, the upper and lower end faces of the mounting bracket are each provided with a through hole, and the movable rod is inserted into the two through holes.

[0008] Preferably, the movable rod is fitted with two bushings, each bushing positioned at a corresponding through hole.

[0009] Preferably, the punch mechanism further includes a reducer assembly disposed at the output end of the drive member.

[0010] Preferably, the reducer assembly has a transmission rod at its front end, and the transmission gear is sleeved on the transmission rod.

[0011] Preferably, a second through hole is provided on the side wall of the mounting bracket, and the front end of the transmission rod is inserted into the second through hole.

[0012] Preferably, the transmission rod is fitted with at least one bushing.

[0013] A button-attaching machine includes: a frame, wherein the mounting bracket is disposed on the frame; and a punching mechanism.

[0014] The key and beneficial technical effects of this technical solution compared to existing technologies are:

[0015] 1. The movable rod designed in this technical solution has a rack portion formed on it. The lifting and lowering of the movable rod is achieved through the cooperation between the transmission gear set at the output end of the drive component and the rack portion. In this transmission method, the movable rod will only move in the vertical direction and will not wobble, which increases its motion stability. In addition, the transmission gear and the rack portion mesh with each other, and the single-stroke lifting and lowering distance of the movable rod can be met when the transmission gear rotates a few times, which greatly improves the transmission efficiency.

[0016] 2. The mounting frame designed in this technical solution has a mounting cavity. The mounting cavity can limit the position of the movable rod and the transmission rod through its own structure, ensuring that the two can be aligned and cooperate with each other. At the same time, it can save materials and space to the maximum extent, thereby reducing costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the punch mechanism.

[0018] Figure 2 This is an exploded view of the punch mechanism.

[0019] Figure 3 This is one of the sectional views of the punch mechanism.

[0020] Figure 4 This is the second sectional view of the punch mechanism.

[0021] Reference numerals: 1. Mounting bracket; 11. Mounting cavity; 12. Through hole one; 13. Through hole two; 2. Driving component; 21. Transmission gear; 3. Movable rod; 31. Rack part; 32. Bushing one; 33. Bushing two; 4. Reducer assembly; 5. Transmission rod. Detailed Implementation

[0022] The specific implementation of this technical solution will be further described in detail below with reference to the accompanying drawings.

[0023] like Figure 1 and Figure 2As shown, a punching mechanism includes a mounting frame 1, a driving component 2, and a movable rod 3. The mounting frame 1 and the driving component 2 are arranged horizontally side by side, and the movable rod 3 is arranged vertically. The mounting frame 1 is hollow inside to form a mounting cavity 11. Part of the structure of the driving component 2 is placed in the mounting cavity 11. A transmission gear 21 is provided at the output end of the driving component 2. The movable rod 3 is also partially movable in the mounting cavity 11, and its lower end extends out of the mounting frame 1. At the same time, the movable rod 3 is located beside the transmission gear 21. The movable rod 3 punches holes or fastens by reciprocating up and down. The driving component 2 achieves the up and down movement of the movable rod 3 by rotating its output end. During the up and down movement of the movable rod 3, it is necessary to keep the device in an upright state at all times.

[0024] Specifically, a rack portion 31 is formed on the side wall of the movable rod 3. The rack portion 31 is composed of a number of parallel tooth grooves. Each tooth groove of the rack portion 31 can mesh with the teeth of the transmission gear 21. Therefore, when the transmission gear 21 rotates, the movable rod 3 can be raised and lowered.

[0025] like Figure 1-4 As shown, the punch mechanism also includes a reducer assembly 4, which is located at the output end of the drive component 2. A transmission rod 5 is provided at the front end of the reducer assembly 4, and a transmission gear 21 is sleeved on the transmission rod 5. In order to ensure the tight fit between the movable rod 3 and the transmission gear 21, it is necessary to limit their movement. Specifically, through holes 12 are provided on both the upper and lower end faces of the mounting bracket 1. The movable rod 3 is inserted into the two through holes 12, thus ensuring the movement position of the movable rod 3. At the same time, through holes 13 are provided on the side wall of the mounting bracket 1. The front end of the transmission rod 5 is inserted into the through hole 13, thus ensuring the rotation position of the transmission gear 21. Through the setting of the through holes, the movable rod 3 and the transmission gear 21 are limited within the mounting cavity 11 to prevent them from disengaging.

[0026] Furthermore, the movable rod 3 is fitted with two bushings 32, which are respectively placed at the corresponding through holes 12. The transmission rod 5 is fitted with at least one bushing 33. The bushings can prevent friction between the movable rod 3, the transmission rod 5 and the mounting bracket 1, and increase the service life of the punch mechanism.

[0027] A button-attaching machine includes a frame and a punching mechanism. The mounting frame 1 can be mounted on the frame or be part of the frame. The punching mechanism is mounted on the frame.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this technical solution. Those skilled in the art should understand that this technical solution is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this technical solution. Various changes and modifications can be made to this technical solution without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed technical solution. The scope of protection of this technical solution is defined by the appended claims and their equivalents.

Claims

1. A punching mechanism, characterized in that, include: Mounting bracket (1), which has a mounting cavity (11); The drive unit (2) has a transmission gear (21) at its output end; as well as The movable rod (3) is partially movable within the mounting cavity (11), and its lower end extends through the mounting bracket (1). The movable rod (3) is located beside the transmission gear (21). The movable rod (3) is formed with a rack portion (31), which meshes with the teeth of the transmission gear (21); When the driving component (2) drives the transmission gear (21) to rotate, the movable rod (3) can be raised and lowered.

2. The punching mechanism according to claim 1, characterized in that: The mounting bracket (1) has through holes (12) on both the upper and lower end faces, and the movable rod (3) is inserted into the two through holes (12).

3. The punching mechanism according to claim 2, characterized in that: The movable rod (3) is fitted with two bushings (32), which are respectively placed at the corresponding through holes (12).

4. The punching mechanism according to claim 3, characterized in that: It also includes a speed reducer assembly (4), which is disposed at the output end of the drive unit (2).

5. A punching mechanism according to claim 4, characterized in that: The reducer assembly (4) has a transmission rod (5) at its front end, and the transmission gear (21) is sleeved on the transmission rod (5).

6. A punching mechanism according to claim 5, characterized in that: The mounting bracket (1) has a through hole two (13) on its side wall, and the front end of the transmission rod (5) is inserted into the through hole two (13).

7. A punching mechanism according to claim 6, characterized in that: The transmission rod (5) is fitted with at least one bushing (33).

8. A button-attaching machine, characterized in that, include: The mounting bracket (1) is mounted on the frame; as well as The punch mechanism as described in any one of claims 1-7.

Images