Polishing equipment for upper and lower stoppers of zipper

Abstract

The utility model discloses polishing equipment for upper and lower stoppers of a zipper, relates to the field of equipment for zipper accessories, and solves the problems of non-uniform polishing and the like. A plurality of stirring columns extending towards the center of the roller are arranged on each inner wall surface of the roller, and the stirring columns are arranged at intervals in the axial direction of the roller; at least two groups of stirring rollers extend out of the central shaft in the radial direction, each group of stirring rollers are arranged at intervals in the axial direction of the central shaft, and each group of stirring rollers are relatively and uniformly arranged in the circumferential direction of the central shaft; when the roller rotates, the stirring columns rotate along with the roller, and the stirring rollers penetrate through gaps between the stirring columns. The stirring column rotates along with the stirring column to fully and effectively stir the upper and lower stoppers of the zipper, the motion trail of materials is more complex and changeable, the collision randomness between workpieces and between the workpieces and grinding materials is high, the turning frequency and intensity of the upper and lower stoppers of the zipper are increased, and the disturbance intensity is improved; and material accumulation is avoided, the problems of uneven polishing and single stirring track are effectively solved, and the contact efficiency of materials and polishing media is improved.

Description

Technical Field

[0001] This utility model relates to the field of equipment for zipper accessories, and in particular to a polishing device for the top and bottom stops of zippers. Background Technology

[0002] In the zipper manufacturing process, the top and bottom stops are key components, and their surface finish directly affects the overall quality, lifespan, and aesthetic appearance of the zipper. Therefore, polishing the top and bottom stops is an essential process. Polishing removes surface burrs, oxide layers, and other defects, improving the precision and texture of the product.

[0003] Currently, polishing equipment for zipper top and bottom stops mostly adopts a drum-type structure. Its working principle is mainly to place the zipper top and bottom stops to be polished into the drum. The rotation of the drum causes friction and collision between the workpieces and between the workpieces and the inner wall of the drum, thereby achieving the polishing effect. However, traditional drum polishing machines have significant drawbacks when applied to small, lightweight, and easily stacked workpieces like zipper top and bottom stops:

[0004] The inner wall of the drum is usually smooth or has only simple protrusions. During the rotation of the drum, the workpiece is not tumbled and stirred well. During the rotation, the workpiece and abrasive are prone to slide against the drum wall under the action of centrifugal force. The internal material is difficult to tumble fully, which can easily lead to workpiece accumulation and uneven polishing. This results in some parts being underpolished, uneven material distribution, and polishing dead corners, affecting the consistency of product quality.

[0005] Conventional stirring rods, such as straight or spiral rods, are mostly fixed on a central shaft, and their movement trajectory is simple. When the drum rotates in one direction, the randomness of collisions between workpieces and between workpieces and abrasive is poor, the relative motion intensity and frequency between workpieces are low, and the disturbance intensity is insufficient. This results in a simple movement trajectory of the workpieces inside the drum, which cannot fully contact the polishing medium, thus affecting the polishing effect.

[0006] Existing equipment lacks effective guidance for the movement of materials along the drum axis. The axial movement is insufficient, and the workpieces tend to accumulate in local areas. The axial dispersion capability is weak, resulting in poor polishing consistency and insufficient polishing uniformity for batches of workpieces, making it difficult to achieve all-round uniform polishing. Utility Model Content

[0007] The purpose of this invention is to overcome the shortcomings of the prior art by providing a polishing device for zipper top and bottom stops, which solves problems such as uneven polishing, single stirring trajectory, and weak axial dispersion ability.

[0008] The technical solution of this utility model includes a drum, a central shaft passing through the drum, and a driving component. The drum is connected to the driving component to achieve reciprocating rotation around its own axis. The main body of the drum is a prismatic hollow structure, and each inner wall surface is provided with multiple stirring columns extending towards the center of the drum. The stirring columns are spaced apart along the axial direction of the drum. At least two sets of stirring rollers extend radially from the central shaft. Each set of stirring rollers is spaced apart along the axial direction of the central shaft, and the stirring rollers are relatively evenly arranged around the circumference of the central shaft. When the drum rotates, the stirring columns rotate with the drum, and the stirring rollers pass through the gaps between the stirring columns.

[0009] By employing the above technical solution, a spatial shearing effect is generated by the stirring roller passing through the gap between the stirring columns. As the drum reciprocates, a dynamic cross-grid structure is formed, which allows the stirring columns to fully and effectively agitate the upper and lower stops of the zipper as they rotate. The material movement trajectory becomes more complex and variable, and the collisions between workpieces and between workpieces and abrasives are highly random, increasing the frequency and intensity of material tumbling at the upper and lower stops of the zipper and improving the disturbance intensity. At the same time, since the inner wall of the drum is no longer a cylindrical structure, the upper and lower stops of the zipper are forced to fall at high frequency at the prism plane turning point, solving the problem of material easily adhering to the drum wall and sliding in traditional drums, avoiding material accumulation, effectively solving the problems of uneven polishing and single stirring trajectory, and improving the contact efficiency between material and polishing medium.

[0010] In one possible design, the stirring rollers have stirring working surfaces on both sides in the direction of rotation, the stirring working surfaces are inclined in the axial direction of the central axis, and the inclination directions of adjacent stirring rollers are opposite.

[0011] With the above design, the working surfaces on both sides of the stirring roller are designed to be tilted in opposite directions, so that the material obtains opposite axial velocity components at the moment of collision. In this way, the stirring roller can generate axial thrust on the material when it is working. The stirring rollers with different tilt directions cooperate with each other to make the material generate more complex motion in the axial direction, which enhances the axial dispersion ability of the material, avoids the material from accumulating in a local area, and further improves the uniformity of polishing.

[0012] In one possible design, the angle between the stirring working surface of the stirring roller and the central axis is 15° to 45°, and adjacent stirring rollers with opposite inclination directions form a V-shaped turbulence unit.

[0013] With the above design, the inclined surface within this angle range can ensure effective axial pushing of the material while avoiding excessive impact damage to the material due to excessive thrust; the V-shaped turbulence unit can generate eddies when the material passes through this area, increasing the collision and friction between materials, improving the polishing effect, and strengthening axial dispersion to ensure the polishing consistency of batch workpieces.

[0014] In one possible design, the central shaft is rotatably connected to a drive mechanism, and its rotation direction is opposite to that of the roller.

[0015] With the above design, the central shaft and the roller move in opposite directions, which increases the relative speed between the mixing roller and the mixing column, resulting in a stronger agitation effect on the material. The material is subjected to more impact and friction, which further improves the mixing intensity and polishing efficiency. At the same time, it makes the material movement trajectory more complex and reduces polishing dead angles.

[0016] In one possible design, the longitudinal section of the prismatic roller is a regular hexagon or a regular octagon.

[0017] With the above design, these two polygonal structures, compared with other prismatic structures, can ensure that the inner wall of the drum has enough mounting surfaces for the stirring columns, while making the force on the material more uniform when the drum rotates, and are also simpler and easier to manufacture.

[0018] In one possible design, the cross-section of the stirring column is square or triangular.

[0019] With the above design, square or triangular structures can enhance the stirring effect on materials more than circular structures. Their planar structure can create a larger area to push the materials, increase the relative movement between materials, and improve the stirring intensity. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0022] Figure 3 This is a three-dimensional sectional view of the cross-section of the roller of this utility model;

[0023] Figure 4 This is a schematic diagram of the longitudinal section of the roller of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the central shaft of this utility model;

[0025] Among them, 1. drum; 11. stirring column; 12. opening; 2. central shaft; 21. stirring roller; 22. stirring working surface; 3. driving component. Detailed Implementation

[0026] like Figures 1 to 5The polishing device shown includes a roller 1, a central shaft 2 passing through the roller 1, and a drive component 3. The roller 1 is connected to the drive component 3 to achieve reciprocating rotation around its own axis. In this embodiment, the drive component 3 is a stepper motor, and its output shaft is connected to the end of the roller 1 through a reducer. It can control the reciprocating rotation angle and frequency of the roller 1. The reciprocating rotation can be set to switch between 5 and 20 revolutions in both directions to adapt to different polishing needs.

[0027] The main body of drum 1 is a prismatic hollow structure with a longitudinal section of a regular hexagon. This structure ensures that the inner wall of drum 1 has sufficient mounting surfaces for the stirring columns 11, while also allowing for a more uniform distribution of force on the material during drum 1 rotation, preventing excessive localized stress due to too many sharp edges. Each inner wall surface of drum 1 is provided with multiple stirring columns 11 extending towards the center of drum 1. The stirring columns 11 are spaced apart along the axial direction of drum 1, with a spacing of 10-15 cm between adjacent stirring columns 11. The cross-section of the stirring column 11 is square, with a rounded transition at the end furthest from the inner wall of drum 1. The square structure enhances the stirring effect on the material compared to a circle, and the rounded transition prevents the stirring column 11 from scratching the material. The stirring columns 11 are welded to the inner wall of drum 1, ensuring a strong connection and the ability to withstand significant impact forces.

[0028] Three sets of stirring rollers 21 extend radially from the central shaft 2. Each set of stirring rollers 21 is spaced apart axially along the central shaft 2. The width of each stirring roller 21 is smaller than the distance between adjacent stirring columns 11. The distance between adjacent stirring rollers 21 is 10-15 cm, and the three sets of stirring rollers 21 are relatively evenly arranged around the central shaft 2, with an included angle of 120° between them. The spacing of the stirring columns 11 matches the spacing of the stirring rollers 21, allowing the stirring rollers 21 to pass through the gaps between adjacent stirring columns 11 when the drum 1 rotates. As the drum 1 rotates, the stirring columns 11 rotate with it. The central shaft 2 is rotatably connected to a drive mechanism, which uses a stepper motor. Its output shaft is connected to the central shaft 2 via a coupling, controlling the rotation direction and speed of the central shaft 2. The rotation direction of the central shaft 2 is opposite to that of the drum 1. This reverse motion increases the relative speed between the stirring rollers 21 and the stirring columns 11, resulting in stronger agitation of the material. Simultaneously, the stirring rollers 21 pass through the gaps between the stirring columns 11, achieving thorough agitation of the material.

[0029] The stirring roller 21 has stirring working surfaces 22 on both sides in the rotation direction. These surfaces directly face the material being stirred. The stirring working surfaces 22 are inclined to the axial direction of the central shaft 2, and the inclination directions of adjacent stirring rollers 21 are opposite. For example, if the angle α between the stirring working surface 22 of one stirring roller 21 and the axial direction of the central shaft 2 is 30°, then the angle between the stirring working surface 22 of the adjacent stirring roller 21 and the axial direction of the central shaft 2 is 150°. These adjacent stirring rollers with opposite inclination directions constitute a V-shaped turbulence unit. This angled inclination ensures effective axial pushing of the material while avoiding excessive impact damage due to excessive thrust. The V-shaped turbulence unit also generates vortices when the material passes through this area, increasing collision and friction between materials.

[0030] In addition, the outer end face of the roller 1 has inlets and outlets for material to enter and exit, and end caps are equipped on the inlets and outlets. The end caps are detachably connected to the roller 1, which facilitates loading and unloading of materials and cleaning of the inside of the roller 1. The roller 1 also has frustum-shaped structures on both sides of its axial direction, so that the roller 1 as a whole forms an olive-like shape that is small at both ends and large in the middle. This can guide the axial circulation of materials and avoid accumulation; increase the complexity of movement and reduce polishing dead angles.

[0031] The cross-section of the stirring column 11 or stirring roller 21 along its width direction is square or triangular.

[0032] The working process of this utility model is as follows: First, open the end cover of the roller 1, put the zipper top and bottom stops to be polished and the polishing medium into the roller 1, and then close the end cover. Start the drive component 3 and activate the drive mechanism as needed. The drive component 3 drives the roller 1 to rotate back and forth around its own axis, and the drive mechanism drives the central shaft 2 to rotate in the opposite direction to the roller 1. During the rotation of the roller 1, the stirring column 11 moves with the roller 1, agitating the material; at the same time, the stirring roller 21 on the central shaft 2 passes through the gap between the stirring columns 11. Due to the inclined setting of the stirring working surface 22 of the stirring roller 21 and the opposite inclination direction of adjacent stirring rollers 21, as well as the opposite rotation of the central shaft 2 and the roller 1, the material can not only be fully turned around in the circumferential direction in the roller 1, but also generate complex movements in the axial direction, effectively avoiding material accumulation and polishing dead corners, and improving polishing uniformity and efficiency.

Claims

1. A polishing device for the top and bottom stops of a zipper, comprising a roller (1), a central shaft (2) passing through the roller (1), and a drive component (3), characterized in that: The drum (1) is connected to the drive unit (3) to achieve reciprocating rotation around its own axis; the main body of the drum (1) is a prismatic hollow structure, and each inner wall surface is provided with multiple stirring columns (11) extending toward the center of the drum (1), and the stirring columns (11) are spaced apart along the axial direction of the drum (1); at least two sets of stirring rollers (21) extend radially from the central shaft (2), and each set of stirring rollers (21) is spaced apart along the axial direction of the central shaft (2), and each set of stirring rollers (21) is relatively evenly arranged around the central shaft (2); when the drum (1) rotates, the stirring columns (11) rotate with the drum (1), the central shaft (2) can rotate or remain stationary, and the stirring rollers (21) pass through the gaps between the stirring columns (11).

2. The polishing equipment for the top and bottom stops of a zipper according to claim 1, characterized in that: The stirring roller (21) has stirring working surfaces (22) on both sides in the rotation direction. The stirring working surfaces (22) are inclined in the axial direction of the central axis (2), and the inclination directions of adjacent stirring rollers (21) are opposite.

3. The polishing equipment for the top and bottom stops of a zipper according to claim 2, characterized in that: The stirring working surface (22) of the stirring roller (21) has an angle of 15° to 45° with the axial direction of the central axis (2), and adjacent stirring rollers (21) with opposite inclination directions form a V-shaped turbulence unit.

4. The polishing equipment for zipper top and bottom stops according to claim 1 or 2, characterized in that: The central shaft (2) is rotatably connected to a drive mechanism, and its rotation direction is opposite to that of the roller (1).

5. The polishing equipment for zipper top and bottom stops according to claim 1 or 2, characterized in that: The longitudinal section of the prismatic roller (1) is a regular hexagon or a regular octagon.

6. The polishing equipment for zipper top and bottom stops according to claim 1 or 2, characterized in that: The cross-section of the stirring column (11) is square or triangular.

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