Polishing component

Abstract

The utility model provides a polishing part which comprises abrasive cloth and a pressing piece, when the abrasive cloth is used for automatically polishing a workpiece, the pressing piece is used for pressing and fixing the workpiece, and the pressing piece comprises a pressing rod or a rolling shaft; when the workpiece moves, the rolling shaft is used for pressing and keeping the rolling shaft to rotate to generate friction force or resistance; the frosted cloth is detachably mounted through the bracket and is convenient to replace; a swing arm and an air cylinder piston are arranged, so that the polishing component can move horizontally, forwards, backwards, upwards and downwards; a dust recycling system is further arranged to recycle dust generated in the edge grinding process, and harm to the body health of operators is reduced; and automatic control can be achieved, labor cost is reduced, individual differences are eliminated, quality control is facilitated, and the grinding efficiency is improved.

Description

[0001] The present application claims priority to Chinese prior application No. 202421253460.0, filed on June 3, 2024; and Chinese prior application No. 202411206623.4, filed on August 30, 2024; the contents of which are hereby incorporated by reference in their entirety as part of the present utility model. TECHNICAL FIELD

[0002] The present utility model belongs to the field of machinery, and in particular relates to a polishing component. BACKGROUND

[0003] In the processing of materials, the surface of the material needs to be polished to remove roughness and burrs. In the processing of the edges of some special-shaped materials, a conventional polishing assembly is usually manually operated to polish the surface of the material. However, manual operation of the polishing assembly is time-consuming, increases labor costs, and has large manual operation errors, thereby greatly reducing production efficiency.

[0004] The full name of the molded tray is a plant fiber molded flat industrial tray. The raw material of a conventional molded tray is wood shavings, plant straw, bamboo wood, etc. It is a whole structure, and the panel and the supporting leg are molded and formed at one time. The upper surface of the tray plate is flat and smooth, and can meet the transportation of various goods. The lower surface is provided with reinforcing ribs. The vertical and horizontal stress of the plate surface is balanced, and the distribution of the nine legs can meet the four-way insertion of the forklift. It is a flat four-way forking single-sided tray. Since the molded tray is made of straw, branches, wood chips, bamboo chips, bamboo fertilizer, etc. which are recyclable resources, and the production process usually adopts hot pressing and other methods, the raw materials and the process are more environmentally friendly. Therefore, the molded tray is increasingly becoming the theme of the tray market. How to better use environmentally friendly raw materials and how to improve the load capacity and strength of the tray are the key research directions of the molded tray.

[0005] After the molded tray is pressed and formed, there are many burrs on the outer edge surface, which need to be edge polished to finally obtain the final molded tray product. At present, the polishing of the molded tray is still manually completed by hand. The molded tray is large in size, and manual processing is very time-consuming and labor-intensive, with low efficiency, high cost, and dust pollution that is harmful to the health of the operator. Moreover, the edge polishing effect has individual differences, which is not conducive to the quality control of the molded tray.

[0006] Therefore, it is urgent to find a polishing component that can automatically polish workpieces, eliminate individual differences caused by manual operation, especially for edge polishing of special-shaped materials such as molded trays, realize full-process automatic control of edge polishing, eliminate batch differences of products, improve consistency, and facilitate quality control. CONTENT OF THE UTILITY MODEL

[0007] To solve the above problems, the utility model provides a kind of polishing component, including sand cloth and pressing piece, while using sand cloth to carry out automatic polishing workpiece, using pressing piece to press fixed workpiece, pressing piece includes pressing rod or roller, when workpiece moves, then using roller to press and keep roller rotation to generate friction or resistance;Sand cloth is detachably installed by support, and it is convenient to replace;It is equipped with swing arm and cylinder piston, so that polishing component can move horizontally and front and back up and down;It is also equipped with dust recovery system to recover the dust generated in edge polishing process, reduce the physical health damage to operator;It can be automatically controlled, not only reduce labor cost, eliminate individual difference, conducive to quality control, but also improve polishing efficiency.

[0008] In one aspect, the utility model provides a kind of polishing component, the polishing component includes sand cloth and pressing piece;The pressing piece is used to fix workpiece;The sand cloth is used to automatically polish workpiece.

[0009] In polishing process, workpiece to be polished even if stationary, it can move in polishing process, this is not desirable in automatic polishing process, thus need to use pressing piece to press, so as to keep fixed to facilitate automatic polishing.

[0010] Further, the pressing piece is pressing rod or roller, when workpiece is stationary, then using pressing rod to press and fix, when workpiece moves, then using roller to press and keep roller rotation.

[0011] If workpiece is not fixed, but regular motion, including horizontal rotation, vertical rotation, vertical reciprocating motion or horizontal reciprocating motion etc., at this time, cannot simply rely on fixed pressing rod to press, otherwise it will lead to the great friction between pressing rod and workpiece because one is stationary and one moves, so that the movement of workpiece is blocked, therefore must use roller to press it, since roller itself is also in continuous rotation, therefore can help to stabilize the position of workpiece, also can ensure that workpiece is not hindered during movement, improve polishing quality and efficiency.

[0012] In some ways, the rotation speed of the roller matches the moving speed of the workpiece.

[0013] In some ways, workpiece is horizontal rotation, then the rotation speed of the roller matches the rotation speed of the workpiece.

[0014] The rotation speed of the roller also has a very important influence on the polishing effect. Once the friction or resistance between the roller and the workpiece is generated, the edge polishing effect will be very uneven. Therefore, the rotation speed of the roller must match the rotation speed of the workpiece. Here, the rotation speed matching does not mean that the rotation speed of the roller is the same as the rotation speed of the workpiece. In fact, the rolling diameter of the roller is small, and the rotating diameter of the workpiece can be relatively much larger, so the rotation speeds cannot be matched. Instead, when the roller rotates, the point on the roller and the point on the workpiece are in contact, and then the displacement of the point on the roller is consistent with the displacement of the point on the workpiece. This is the complete matching. For example, the workpiece is a horizontal rotating mold tray, the diameter of the roller is 15 cm, the diameter of the mold tray is 198 cm, when the rotation speed of the roller is 580 rpm and the rotation speed of the mold tray is 16 rpm, the friction or resistance between the roller and the mold tray can be reduced as much as possible. At the same time, the matching of the rotation speed of the roller and the rotation speed of the workpiece not only can reduce the friction, but also can prolong the service life of the polishing part.

[0015] Further, the abrasive cloth is detachably fixed on the support, the support is provided with a roller, and the roller is used to drive the abrasive cloth to rotate, so as to polish the workpiece.

[0016] The abrasive cloth rolls with the roller, so that the abrasive cloth rolls and polishes the workpiece at the same time. If the workpiece is horizontally rotated, the position of the workpiece changes in the horizontal direction, and the position of the abrasive cloth changes in the vertical direction. The combination of the position changes of the workpiece and the abrasive cloth can improve the edge polishing effect.

[0017] Further, the support is supported and fixed by a support column. When the support column is removed, the support is folded, and the abrasive cloth can be detached from the support for replacement.

[0018] The split design facilitates replacement of the abrasive cloth.

[0019] When the support column supports, the support can fix the position of the abrasive cloth. When the support column is removed, the support loses the fulcrum and cannot be fixed, so the abrasive cloth cannot be fixed and can be directly removed from the support.

[0020] Further, a dust recovery system is also included, which includes a suction pump and a recovery channel. The suction pump is located on one side of the polishing mechanism and is used to suck the dust generated during polishing. The dust is recovered and concentrated through the recovery channel for treatment.

[0021] Further, the outlet of the recovery channel is upwardly inclined and is located below the polishing position of the abrasive cloth. The abrasive cloth polishes the workpiece to be polished from top to bottom, so that the dust generated enters the recovery channel from top to bottom.

[0022] The upward inclination of the recovery channel outlet can prevent dust from floating, and the direction of the sand cloth for grinding the edge of the molded tray is from top to bottom, so that the generated dust can basically enter the recovery channel from top to bottom and be sucked by the suction pump, thereby improving the dust recovery efficiency and reducing the damage of dust to the operator's body.

[0023] Further, the grinding part is provided with a swing arm for adjusting the position of the grinding part to match the irregularly shaped workpiece.

[0024] For example, when the workpiece is a molded tray, which is a polygon with edges, the grinding part is used to grind the edge. When the molded tray rotates from the edge to the corner to align with the grinding part, the distance between the grinding part and the center of the molded tray will inevitably increase, so the grinding part cannot remain in place without moving backward, and must be appropriately moved backward to truly match the corner position of the molded tray and grind the edge of the molded tray. At this time, the grinding part needs to be provided with a swing arm to allow the grinding part to move within a certain sector to adjust the distance between the grinding part and the center of the molded tray (the center of the molded tray is fixed).

[0025] It can be seen that the design of the swing arm can make the grinding part applicable to various irregularly shaped workpieces and various situations where the distance between the grinding part and the center of the molded tray changes, thereby widening the application range of the grinding part.

[0026] Further, the swing arm can make the grinding part move forward and backward in the horizontal plane.

[0027] For example, when the workpiece is a molded tray, which is a polygon with edges, if there is no swing arm structure, the distance between the grinding part and the center of the molded tray remains unchanged when the molded tray rotates. When the edge of the molded tray is ground, the edge position of the molded tray and the position of the grinding part collide together, resulting in a part of the molded tray unable to continue to be ground. Therefore, when the grinding part grinds the edge, a swing arm is needed to change the distance between the grinding part and the center of the molded tray to keep the grinding part at a proper distance from the edge position, so that the grinding work can continue.

[0028] Further, the grinding part pushes the sand cloth close to the workpiece by the cylinder piston, and pushes the pressing piece close to the upper surface of the workpiece.

[0029] Further, the cylinder piston is located at the bottom of the grinding part; when the cylinder piston is opened, the cylinder piston pushes the grinding part upward to enter the working state; when the cylinder piston is closed, the grinding part goes down to the home position.

[0030] When a workpiece is polished, the cylinder piston is closed, the polishing part is lowered to the original position, and the space is provided for replacing the new workpiece, when the new unpolished workpiece is replaced, the cylinder piston is started, and the cylinder piston pushes the polishing part to go up, so that the polishing part enters the working state.

[0031] The utility model has the following beneficial effects:

[0032] (1) a new automatic polishing part is designed, and automatic polishing of the workpiece can be realized;

[0033] (2) the sand cloth rolls longitudinally along with the roller, and the edge polishing effect is effectively improved;

[0034] (3) by designing the roller shaft on the polishing part, the position of the workpiece is stabilized in the edge polishing process through the roller shaft, so that the workpiece is not hindered in the movement process, and the quality and efficiency of edge polishing are improved;

[0035] (4) the swing arm and the cylinder piston are arranged on the polishing part, so that the polishing part can move forward, backward, upward and downward, the position cooperation with the workpiece is better, and the polishing part is suitable for various irregular-shaped workpieces and realizes high automation;

[0036] (5) the dust generated in the edge polishing process can be recycled as much as possible, dust dispersion is prevented, and the damage of dust to the health of the operator is reduced;

[0037] (7) the labor cost is reduced, the polishing efficiency is improved, and the utility model is green and environment-friendly. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a structural schematic view of the polishing part and the die pressing tray combination;

[0039] Figure 2 It is a structural schematic view of the polishing part;

[0040] Figure 3 It is a structural schematic view of the polishing part (with a dust collection pipeline);

[0041] Figure 4 It is a structural schematic view (side view) of the polishing part;

[0042] Figure 5 It is an explosion view of the polishing part;

[0043] Figure 6 It is a schematic view of the swing arm swing process of the polishing part. DETAILED DESCRIPTION

[0044] The utility model will be further described in detail in combination with the drawings and embodiments, and it should be pointed out that the following embodiments are intended to facilitate the understanding of the utility model and do not have any limiting effect on the utility model.

[0045] Example 1: Structure of the grinding component

[0046] The grinding component 1 provided in this embodiment, such as Figures 1-6 As shown, it includes an abrasive cloth 2 and a pressing component 3; the pressing component 3 is used to fix the workpiece to be polished, and the abrasive cloth 2 is used for automatic polishing of the workpiece. During the polishing process, even if the workpiece to be polished is stationary, it may move during the polishing process, which is undesirable in automatic polishing. Therefore, a pressing component is needed to press it down and keep it fixed so as to facilitate automatic polishing.

[0047] The pressing component 3 can be a pressing rod or a roller 4. The shape of the pressing rod and the roller 4 can be consistent. The difference is that the pressing plate remains stationary, while the roller 4 will continue to rotate. When the workpiece is stationary, the pressing rod is used to press and fix it. When the workpiece is moving, the roller 4 is used to press and keep the roller rotating. If the workpiece is not stationary but undergoes regular movement, including horizontal rotation, vertical rotation, vertical reciprocating motion, or horizontal reciprocating motion, etc., it is not possible to simply rely on the fixed pressing rod for pressing. Otherwise, it will cause huge friction between the pressing rod and the workpiece due to one being stationary and the other moving, which will hinder the movement of the workpiece. Therefore, the roller 4 must be used to press it. Since the roller 4 itself is also continuously rotating, it can help stabilize the position of the workpiece and ensure that it is not obstructed during the movement of the workpiece, thereby improving the quality and efficiency of grinding.

[0048] The rotation speed of roller 4 needs to match the moving speed of the workpiece. For example, if the workpiece is rotating horizontally, then the rotation speed of roller 4 should match the rotation speed of the workpiece. The rotation speed of roller 4 also has a very important impact on the grinding effect. Once friction or resistance occurs between roller 4 and the workpiece, the grinding effect will be very uneven. Therefore, the rotation speed of roller 4 must match the rotation speed of the workpiece. Matching rotation speed here does not mean that the rotation speed of roller 4 and the rotation speed of the workpiece are the same. In fact, the rolling diameter of roller 4 is small, while the rotation diameter of the workpiece may be relatively much larger, so the same rotation speed will not match. Instead, when roller 4 rotates, the displacement of a point on roller 4 after contact with a point on the workpiece must be consistent with the displacement of the point on the workpiece. This is a perfect match. For example, if the workpiece is a horizontally rotating molding tray 5... Figure 1 The diameter of roller 4 is 15cm, and the diameter of molding tray 5 is 198cm. When the rotation speed of roller 4 is 580rpm and the rotation speed of molding tray 5 is 16rpm, the friction or resistance between roller 4 and molding tray 5 can be minimized. At the same time, matching the rotation speed of roller 4 with the rotation speed of workpiece can not only reduce friction, but also extend the service life of grinding component 1.

[0049] As Figure 4 , the abrasive cloth 2 is detachably fixed on the support 6, the support 6 is provided with a roller 7, the roller 7 is used to drive the abrasive cloth 2 to rotate, so as to polish the workpiece. The abrasive cloth 2 rolls with the roller 7, so as to realize rolling and polishing the workpiece at the same time. If the workpiece is continuously horizontally rotated, it is equivalent to that the position of the workpiece changes in the horizontal direction, and the position of the abrasive cloth 2 changes in the vertical direction. The combination of the multiple position changes can improve the edge polishing effect. The support 6 is supported and fixed by the support column 8. When the support column 8 is removed, the support 6 is folded, and the abrasive cloth 2 can be removed and replaced from the support 6. When the support column 8 is supported, the support 6 can fix the position of the abrasive cloth 2. When the support column 8 is removed, the support 6 loses the fulcrum and cannot be fixed, so the abrasive cloth 2 cannot be fixed any more, and can be directly removed from the support 6.

[0050] As Figures 2-3 , the polishing part 1 further comprises a dust recovery system 9, the dust recovery system 9 comprises a suction pump 10 and a recovery channel 11. The suction pump 10 is located on one side of the polishing mechanism 1, and is used to suck the dust generated during polishing. The dust is collected and treated through the recovery channel 11. The outlet 12 of the recovery channel 11 is upwardly inclined and located below the polishing position of the abrasive cloth 2. The direction of polishing the workpiece by the abrasive cloth 2 is from top to bottom, so that the generated dust enters the recovery channel 11 from top to bottom. The outlet 12 of the recovery channel 11 is upwardly inclined, which can prevent the dust from floating. For example, when the abrasive cloth 2 polishes the edge of the mold tray 5, the direction is from top to bottom, so that the generated dust can basically enter the recovery channel 11 from top to bottom, and is sucked by the suction pump 10, thereby improving the dust recovery efficiency. This design reduces the damage of dust to the operator's body.

[0051] As Figures 1-6, the polishing component 1 is provided with a swing arm 13, including a fixed end 19 and a moving end 20, for adjusting the position of the polishing component, so that the polishing component matches the irregularly shaped workpiece. For example, the workpiece is a molded tray 5, which is a polygon with edges 15. When the molded tray 5 is rotated from the edge 14 to the corner 15 to align with the polishing component 1, the distance between the polishing component 1 and the center of the molded tray 5 will inevitably increase, so the polishing component 1 cannot remain in place without moving backward, and must be appropriately moved backward at this time to truly match the position of the corner 15 of the molded tray 5, so as to edge the corner 15 of the molded tray 5. At this time, the swing arm 13 needs to be provided on the polishing component 1, so that the polishing component 1 can be moved within a certain sector to adjust the distance between the polishing component 1 and the center of the molded tray 5 (the center of the molded tray 5 is fixed). It can be seen that the design of the swing arm 13 enables the polishing component 1 to be applicable to various irregularly shaped workpieces and applicable to various situations where the distance between the polishing component 1 and the center of the molded tray 5 changes, thereby widening the application range of the polishing component 1.

[0052] As Figure 6 , the swing arm 13 enables the polishing component 1 to move forward and backward in the horizontal plane. For example, the workpiece is a molded tray 5, which is a polygon with edges 15. When the molded tray 5 is rotated, if there is no swing arm 13 structure, the distance between the polishing component 1 and the center of the molded tray 5 remains unchanged, so when the corner 15 of the molded tray 5 is turned to be edged, the position of the corner 15 of the molded tray 5 and the position of the polishing component 1 collide together, resulting in a part of the molded tray 5 being unable to continue to be edged. Therefore, when the polishing component 1 edges the corner, a swing arm 13 is needed to change the distance between the polishing component 1 and the center of the molded tray 5 at all times, so that the polishing component 1 and the corner 15 position maintain a proper distance, thereby continuing the edging work.

[0053] The polishing component 1 is pushed by the cylinder piston 16 to approach the workpiece, and the pressing piece 3 is pushed to adhere to the upper surface of the workpiece. The cylinder piston 16 is located at the bottom 17 of the polishing component 1; when the cylinder piston 16 is opened, the cylinder piston 16 pushes the polishing component 1 to go up, and enters the working state; when the cylinder piston 16 is closed, the polishing component 1 goes down to the home position. After a workpiece is polished, the cylinder piston 16 is closed, and the polishing component 1 goes down to the home position to provide space for replacing a new workpiece. When a new unpolished workpiece is replaced, the cylinder piston 16 is started, and the cylinder piston 16 pushes the polishing component 1 to go up, so that it enters the working state.

[0054] During the rotation of the molded tray 5, the working process of the swing arm 13 is as follows Figure 6As shown, when the die tray 5 is turned from the edge 14 (left) to the corner 15 (right), the swing arm 13 is horizontally turned outward by an angle of about 15 degrees 18, so as to move the polishing component 1 backward to match the corner 15 of the die tray 5. It can be seen that the design of the swing arm 13 can make the polishing component 1 suitable for die trays 5 of various irregular shapes, and suitable for various situations where the distance from the center of the die tray 5 needs to be changed.

[0055] Although the utility model discloses as above, but the utility model is not limited to this. Any person skilled in the art, without departing from the spirit and scope of the utility model, can make various changes and modifications, therefore the protection scope of the utility model should be with the range that the claim defines accurately.

Claims

1. A sharpening member characterized by, The application relates to a sanding device for sanding a workpiece, which comprises a sanding cloth and a pressing piece; the pressing piece is used for fixing a molded tray; the sanding cloth is used for automatically sanding the workpiece; the sanding device further comprises a dust recovery system, which comprises a suction pump and a recovery channel; the suction pump is arranged on one side of a sanding mechanism and is used for sucking dust generated during sanding; the dust is recovered and concentrated through the recovery channel; the outlet of the recovery channel is upwardly inclined and is arranged below the sanding position of the sanding cloth; the sanding cloth sands the molded tray to be sanded in a direction from top to bottom, so that the generated dust enters the recovery channel from top to bottom.

2. The abrasive member of claim 1, wherein, The pressing piece is a pressing rod or a roller; when the workpiece is static, the pressing rod is used for pressing and fixing; when the workpiece is moving, the roller is used for pressing and keeping the roller rotating.

3. The sharpening element of claim 1 wherein, The sanding cloth is detachably fixed on a support; the support is provided with a roller; the roller is used for driving the sanding cloth to rotate, so as to sand the workpiece.

4. The sharpening member of claim 3 wherein, The support is supported and fixed through a support column; when the support column is removed, the support is folded; the sanding cloth can be detached from the support and replaced.

5. The abrasive member of claim 1 wherein, The sanding part is provided with a swing arm, which is used for adjusting the position of the sanding part and matching the sanding part with an irregularly-shaped workpiece.

6. The abrasive member of claim 5 wherein, The swing arm can make the sanding part horizontally displace forward and backward.

7. The abrasive member of claim 1 wherein, The sanding part pushes the sanding cloth to approach the workpiece through a cylinder piston, and pushes the pressing piece to approach the upper surface of the workpiece.

8. The sharpening member of claim 7 wherein, The cylinder piston is arranged at the bottom of the sanding part; when the cylinder piston is opened, the cylinder piston pushes the sanding part to go up and enter a working state; when the cylinder piston is closed, the sanding part goes down and returns to the original position.

Images