Reinforced rotary sand sifter

Abstract

The utility model relates to the technical field of rotating and gathering sand dish, and disclose a kind of reinforced rotating and gathering sand dish, including sand dish tray, sand dish tray is sequentially included gauze layer, coarse hair layer and non-woven fabric layer from bottom to top, the upper portion of sand dish tray is provided with connecting disc, the upper surface of connecting disc is hinged with multiple circumferentially arranged arc pieces by bolt, the upper surface of non-woven fabric layer is pasted with connecting seat. This kind of reinforced rotating and gathering sand dish, by being provided with connecting disc and the upper surface bolt hinged with multiple circumferentially arranged arc pieces of connecting disc, the other end of arc piece is bolted with non-woven fabric layer by connecting seat, and then in the process of use, the outer edge of sand dish tray is reinforced and supported, when high-speed rotating operation, the vibration amplitude of sand dish tray edge can be reduced, and the hinged arc piece can also be rotated and adjusted according to sand dish tray of different size, improve its applicability.

Description

Technical Field

[0001] This utility model relates to the field of polymer sand disc technology, specifically a reinforced polymer sand disc. Background Technology

[0002] In the fields of surface treatment such as metal processing, wood sanding, and stone polishing, rotary abrasive discs have become indispensable tools due to their high-efficiency grinding and polishing performance. Most existing rotary abrasive discs adopt a single-layer or double-layer structure, mainly composed of an abrasive layer and a substrate. They are fixed to the rotating shaft of the grinding equipment through a central connecting plate. During operation, the abrasive disc rotates at high speed, and the processing is achieved by the friction between the abrasive layer and the material surface. The existing abrasive disc structure is simple, the bonding strength between the abrasive layer and the substrate is limited, and there is a lack of effective reinforcement measures. When operating at high speed or under high pressure, the abrasive disc is prone to vibration, and even the abrasive layer may fall off or the substrate may deform and crack.

[0003] An existing patent (publication number: CN215881310U) discloses a reinforced rotating abrasive disc. When the rotating shaft of the polishing equipment is connected to the threaded column, a fixing block extends into the rotating shaft, and a cross-shaped screw passes through the fixing block and the rotating shaft. The screw is then tightened with a nut, which can effectively improve the stability of the rotating abrasive disc during use. The addition of a reinforcing strip can improve the stability of the connection between the non-woven fabric layer and the connecting disc. At the same time, the reinforcing strip can be firmly installed on the connecting disc by the connecting frame and screws, thus making the rotating abrasive disc highly stable and preventing loosening.

[0004] While the patented technology solves the problem of low stability and loosening of sand discs during use, it has certain shortcomings. The bottom of the reinforcing strips is connected to the fiber layer and the non-woven fabric layer through the fiber layer, and the stability of the direct contact connection is poor. In addition, the size of the reinforcing components is fixed, the reinforcing strips themselves lack elasticity and the size cannot be adjusted, which makes its applicability poor during use. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a reinforced sand-coated disc, which has advantages such as stable reinforcement and adjustable size, and solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a reinforced abrasive disc, comprising a sanding disc, wherein the sanding disc comprises, from bottom to top, a gauze layer, a coarse wool layer, and a non-woven fabric layer. The gauze layer is dense and has good wear resistance, and is used for preliminary sanding of material surfaces. The coarse wool layer has a certain elasticity and flexibility, which can buffer the impact force during operation, thereby assisting in sanding. A connecting disc is provided above the sanding disc, and a plurality of circumferentially arranged arc-shaped pieces are hinged to the upper surface of the connecting disc by bolts. A connecting seat is adhered to the upper surface of the non-woven fabric layer, and the other end of the arc-shaped pieces is bolted to the connecting seat.

[0007] Furthermore, the gauze layer, coarse wool layer, and non-woven fabric layer of the sand disc are tightly bonded together with an adhesive.

[0008] The above method ensures that the gauze layer, coarse wool layer, and non-woven fabric layer of the sanding disc are tightly bonded together, preventing the layers from separating during use.

[0009] Furthermore, a reinforcing sheet is adhered to the upper surface of the nonwoven fabric layer, and a threaded groove is provided on the circumference of the upper surface of the reinforcing sheet. A bolt corresponding to the groove is installed on the upper surface of the connecting disc.

[0010] The above solution uses bolts to connect the connecting disc to the reinforcing plate, ensuring a stable connection between the connecting disc and the sand disc.

[0011] Furthermore, the top center of the connecting plate is provided with a mounting hole, and the inner wall of the mounting hole is machined with internal threads.

[0012] The above solution uses mounting holes for connection to the shaft of grinding and polishing equipment, and the internal threads inside the mounting holes facilitate installation and disassembly.

[0013] Furthermore, the bottom surface of the arc-shaped piece is set as a smooth surface.

[0014] Through the above solution, the arc-shaped sheet made of hard rubber has a certain degree of elasticity while ensuring strength. When the sanding disc bends during use, it does not affect its use. After use, the elasticity of the hard rubber allows it to return to its original position and can also drive the sanding disc to return to flatness. The smooth surface can reduce the friction of the arc-shaped sheet when rotating and adjusting.

[0015] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:

[0016] This reinforced rotating sand disc features a connecting disc with multiple circumferentially arranged arc-shaped pieces bolted to its upper surface. The other end of each arc-shaped piece is connected to a non-woven fabric layer via a connecting seat bolt. This reinforces and supports the outer edge of the sand disc during use, reducing vibration amplitude at the edge during high-speed rotation. The hinged arc-shaped pieces can also be adjusted to accommodate sand discs of different sizes, enhancing its applicability. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present application;

[0018] Figure 2 This is a diagram showing the adjustment effect of the overall arc-shaped piece in this application;

[0019] Figure 3 This is a sectional view of the overall sand disc of this application from a side view.

[0020] Figure 4 For the purposes of this application as a whole Figure 3 An enlarged schematic diagram of the structure at point A in the middle.

[0021] In the picture:

[0022] 1. Sanding disc; 101. Gauze layer; 102. Coarse wool layer; 103. Non-woven fabric layer;

[0023] 2. Connecting plate; 3. Arc-shaped piece; 4. Connecting seat; 5. Reinforcing piece; 6. Mounting hole. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0025] Please see Figure 1 , Figure 2 and Figure 3 This embodiment of a reinforced abrasive disc includes an abrasive disc 1. The abrasive disc 1 includes, from bottom to top, a gauze layer 101, a coarse wool layer 102, and a non-woven fabric layer 103. The gauze layer 101 is dense and has good wear resistance, and is used for preliminary abrasion of the material surface. The coarse wool layer 102 has a certain elasticity and flexibility, which can buffer the impact force during the operation and thus assist in abrasion. A connecting disc 2 is provided above the abrasive disc 1. Multiple circumferentially arranged arc-shaped pieces 3 are hinged to the upper surface of the connecting disc 2 by bolts. A connecting seat 4 is attached to the upper surface of the non-woven fabric layer 103. The other end of the arc-shaped pieces 3 is bolted to the connecting seat 4.

[0026] Please see Figure 1 , Figure 3 and Figure 4 The gauze layer 101, the coarse wool layer 102, and the non-woven fabric layer 103 of the sanding disc 1 are tightly bonded together with an adhesive, which ensures that the gauze layer 101, the coarse wool layer 102, and the non-woven fabric layer 103 of the sanding disc 1 are tightly bonded together and that the layers will not separate during use.

[0027] Please see Figure 1 , Figure 3 and Figure 4 A reinforcing sheet 5 is attached to the upper surface of the nonwoven fabric layer 103. The upper surface of the reinforcing sheet 5 is provided with a threaded groove. The upper surface of the connecting plate 2 is equipped with bolts corresponding to the groove. The connecting plate 2 is connected to the reinforcing sheet 5 by bolts, so that the connecting plate 2 can be stably connected to the sand disc 1.

[0028] Please see Figure 1 , Figure 3 and Figure 4 The top center of the connecting plate 2 is provided with a mounting hole 6. The inner wall of the mounting hole 6 is machined with internal threads. The mounting hole 6 is used to connect with the rotating shaft of the grinding and polishing equipment. The internal threads in the mounting hole 6 facilitate installation and disassembly. The arc-shaped plate 3 is made of hard rubber. The bottom surface of the arc-shaped plate 3 is set as a smooth surface. The arc-shaped plate 3 made of hard rubber has a certain degree of elasticity while ensuring strength. When the sand disc 1 bends during use, it does not affect its use. After use, the elasticity of the hard rubber allows it to reset and can drive the sand disc 1 to return to flatness. The smooth surface can reduce the friction of the arc-shaped plate 3 when rotating and adjusting.

[0029] It should be noted that during use, the arc-shaped piece 3 should be adjusted and rotated to the designated position before installing the bolts for fastening.

[0030] The working principle of the above embodiment is as follows: During use, the external equipment drives the connecting plate 2 to rotate through the mounting hole 6. The rotation of the connecting plate 2 drives the reinforcing plate 5 to rotate, which in turn drives the sanding disc 1 to rotate. The sanding disc 1 performs grinding operations. During use, the elasticity of the arc-shaped plate 3 reinforces and supports the outer edge of the sanding disc 1, so that when the sanding disc 1 rotates at high speed, the arc-shaped plate 3 can reduce the vibration amplitude of the edge of the sanding disc 1 and maintain the stability of the sanding disc 1. One end of the arc-shaped plate 3 is hinged, which allows the arc-shaped plate 3 to be rotated and adjusted according to the sanding disc 1 of different sizes, thereby improving its applicability.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A reinforced sand-coating disc, comprising a sand disc (1), characterized in that: The sanding disc (1) comprises, from bottom to top, a gauze layer (101), a coarse wool layer (102), and a non-woven fabric layer (103). A connecting disc (2) is provided above the sanding disc (1). Multiple circumferentially arranged arc-shaped pieces (3) are hinged to the upper surface of the connecting disc (2) by bolts. A connecting seat (4) is attached to the upper surface of the non-woven fabric layer (103). The other end of the arc-shaped piece (3) is bolted to the connecting seat (4).

2. The reinforced sand-coating disc according to claim 1, characterized in that: The gauze layer (101), coarse wool layer (102) and non-woven fabric layer (103) of the sand disc (1) are tightly bonded together by an adhesive.

3. The reinforced sand-coating disc according to claim 1, characterized in that: The upper surface of the nonwoven fabric layer (103) is attached with a reinforcing sheet (5), and the upper surface of the reinforcing sheet (5) is provided with a threaded groove. The upper surface of the connecting disc (2) is fitted with bolts corresponding to the groove.

4. The reinforced sand-coating disc according to claim 1, characterized in that: The connecting plate (2) has a mounting hole (6) at the top center, and the inner wall of the mounting hole (6) is machined with internal threads.

5. A reinforced sand-coating disc according to claim 1, characterized in that: The bottom surface of the arc-shaped piece (3) is set to a smooth surface.

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