High-applicability abrasive paper mouth grinding mechanism convenient for grinding abrasive paper with different thicknesses

Abstract

The utility model discloses a highly applicable abrasive paper grinding mechanism convenient for grinding abrasive paper with different thicknesses, which relates to the technical field of abrasive paper grinding and comprises a base, a group of lifting devices are arranged above the base, an upper grinding device is arranged below the lifting devices, and a lower grinding device is arranged on the front side of the base. A feeding mechanism is arranged on the front side of the base and used for clamping, feeding and grinding abrasive paper, the feeding mechanism comprises a clamping unit and a pushing unit, an operator can safely clamp and fix the abrasive paper at the position far away from the upper grinding device and the lower grinding device through the arranged clamping unit and the arranged pushing unit, and then the abrasive paper can be ground at the position far away from the upper grinding device and the lower grinding device. And then the whole mechanism is pushed by a handle to feed the front end of the abrasive paper between the belts of the upper opening grinding device and the lower opening grinding device for opening grinding. The hand of an operator is prevented from directly getting close to or making contact with a ground opening belt rotating at a high speed, and the potential safety hazard that the hand of the operator is prone to making contact with the belt to cause injury during manual feeding is avoided.

Description

Technical Field

[0001] This utility model relates to the field of sandpaper grinding technology, specifically a highly applicable sandpaper grinding mechanism that facilitates grinding sandpaper of different thicknesses. Background Technology

[0002] Sandpaper is a material used for grinding. It can be used to grind surfaces such as metal and wood to make the surface of the object being ground smooth and clean.

[0003] According to the patent titled "A Sandpaper Grinding Machine Capable of Grinding Sandpaper of Different Thicknesses" (Patent Publication No.: CN213054178U, Patent Publication Date: 2021-04-27), the machine includes a worktable, an upper grinding device, and a lower grinding device. The upper grinding device includes an upper pulley and an upper belt, with the upper pulley rotatably connected to the worktable and the upper belt sleeved around the two upper pulleys. The lower grinding device includes a lower pulley and a lower belt, with the lower pulley rotatably connected to the worktable and the lower belt sleeved around the two lower pulleys. The machine also includes a support plate and a cylinder. One end of the support plate is fixedly connected to the worktable, and the cylinder is horizontally slidably connected to the upper side of the support plate. The lower end of the cylinder's piston rod passes through the support plate and is rotatably connected to the upper pulley. During use, the cylinder can be used to move the upper pulley vertically according to the thickness of the sandpaper to be ground, thereby adjusting the distance between the lower surface of the upper belt and the upper surface of the lower belt to a suitable size, improving the applicability of the sandpaper grinding machine.

[0004] Based on the aforementioned existing technology, the existing high-applicability sandpaper grinding mechanism for sanding different thicknesses still has the following problems: the existing high-applicability sandpaper grinding mechanism for sanding different thicknesses usually requires manual placement of the sandpaper between two belts for grinding. However, when feeding manually, the person's hand is likely to come into contact with the belt, which may cause injury. Therefore, this utility model provides a high-applicability sandpaper grinding mechanism for sanding different thicknesses. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a highly applicable sandpaper grinding mechanism that is easy to grind sandpaper of different thicknesses. It solves the following problems that existing highly applicable sandpaper grinding mechanisms that are easy to grind sandpaper of different thicknesses usually require manual placement of sandpaper between two belts for grinding. However, when feeding manually, the operator's hands are likely to come into contact with the belts, which may cause injury to the operator.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a highly applicable sandpaper grinding mechanism for grinding sandpaper of different thicknesses, comprising a base, a lifting device above the base, an upper grinding device below the lifting device, a lower grinding device on the front side of the base, and a feeding mechanism on the front side of the base for clamping and feeding the sandpaper for grinding; the feeding mechanism includes:

[0007] A clamping unit is located on the front side of the base and is used to move the pushing unit;

[0008] The pushing unit is located above the clamping unit and includes a lower clamping plate. Fixed posts are fixedly installed at the four top corners of the lower clamping plate. An upper clamping plate is slidably installed on the surface of the fixed posts. The upper clamping plate moves down to cooperate with the lower clamping plate to clamp the sandpaper. The clamping unit allows one end of the sandpaper to enter between the belts of the upper and lower grinding devices for grinding.

[0009] Preferably, the clamping unit further includes a fixed rod fixedly installed on the upper surface of the fixed column, and a rotating shaft is rotatably installed on the inner side of the fixed rod, and cams are fixedly installed on both ends of the rotating shaft, and a pull rod is fixedly installed on the middle surface of the rotating shaft.

[0010] Preferably, a spring is installed on the surface of the fixing column, and the spring is installed between the lower clamping plate and the upper clamping plate, so that the upper clamping plate is pushed to reset by the spring force itself.

[0011] Preferably, rubber pads are fixedly installed above the lower clamping plate and below the upper clamping plate, and the friction force for clamping sandpaper is achieved by the cooperation of the lower clamping plate and the upper clamping plate through the rubber pads.

[0012] Preferably, the pushing unit includes a mounting base fixedly installed on the front side of the base, a fixing frame fixedly installed on the top of the mounting base, a set of sliding columns fixedly installed inside the fixing frame, and a sliding block slidably installed on the sliding columns, and the lower clamping plate fixedly installed on the sliding block.

[0013] Preferably, a handle is fixedly installed on the front side of the sliding block for pushing and pulling the sliding block to move, and a reinforcing rib is fixedly installed at the lower right angle of the mounting base to improve the support strength of the mounting base.

[0014] This invention provides a highly applicable sandpaper grinding mechanism that facilitates sanding sandpaper of different thicknesses. Compared with the prior art, it has the following advantages:

[0015] 1. This highly adaptable sandpaper grinding mechanism, which facilitates grinding sandpaper of varying thicknesses, utilizes a clamping and pushing unit. Operators can first securely clamp and fix the sandpaper away from the upper and lower grinding devices. Then, by using the handle, they can push the entire mechanism to feed the front end of the sandpaper between the belts of the upper and lower grinding devices for grinding. This avoids direct contact between the operator's hands and the high-speed grinding belts, eliminating the safety hazard of hand contact with the belts during manual feeding.

[0016] 2. This highly adaptable sandpaper grinding mechanism, which facilitates grinding sandpaper of different thicknesses, has rubber pads fixedly installed on the contact surfaces of the lower and upper clamping plates. These rubber pads provide a high-friction contact surface, effectively preventing the sandpaper from slipping or falling off during the pushing and grinding process, ensuring reliable feeding and grinding quality. Attached Figure Description

[0017] Figure 1 This is a right-side perspective view of the structure of this utility model;

[0018] Figure 2 This is a rear-view perspective structural diagram of the present invention;

[0019] Figure 3 This is a three-dimensional structural diagram of the feeding mechanism of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the push unit of this utility model.

[0021] In the diagram: 1-Base, 2-Feeding mechanism, 21-Clamping unit, 211-Lower clamping plate, 212-Fixing column, 213-Upper clamping plate, 214-Fixing rod, 215-Spring, 216-Rotating shaft, 217-Cam, 218-Pull rod, 219-Rubber pad, 22-Pushing unit, 221-Mounting seat, 222-Fixing frame, 223-Sliding column, 224-Sliding block, 225-Handle, 226-Reinforcing rib, 3-Lifting device, 4-Upper grinding device, 5-Lower grinding device. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 This utility model provides a technical solution:

[0024] A highly applicable sandpaper grinding mechanism for grinding sandpaper of different thicknesses includes a base 1, a lifting device 3 above the base 1, an upper grinding device 4 below the lifting device 3, a lower grinding device 5 on the front side of the base 1, and a feeding mechanism 2 on the front side of the base 1 for clamping and feeding the sandpaper for grinding. The feeding mechanism 2 includes:

[0025] The clamping unit 21 is disposed on the front side of the base 1 and is used to move the pushing unit 22;

[0026] The pushing unit 22 is located above the clamping unit 21 and includes a lower clamping plate 211. Fixing posts 212 are fixedly installed at the four corners of the top of the lower clamping plate 211. An upper clamping plate 213 is slidably installed on the surface of the fixing posts 212. The upper clamping plate 213 moves down to cooperate with the lower clamping plate 211 to clamp the sandpaper. The clamping unit 21 allows one end of the sandpaper to enter between the belts of the upper grinding device 4 and the lower grinding device 5 for grinding.

[0027] In this embodiment, the clamping unit 21 further includes a fixing rod 214 fixedly installed on the upper surface of the fixing post 212, and a rotating shaft 216 is rotatably installed on the inner side of the fixing rod 214. Cams 217 are fixedly installed on both ends of the rotating shaft 216, and a pull rod 218 is fixedly installed on the middle surface of the rotating shaft 216.

[0028] The lever-type pull rod design converts manual pressing into mechanical lever action, reducing the intensity of operation. A single pull of the pull rod can synchronously drive the cams on both sides through the rotating shaft, ensuring that the upper clamping plate 213 is pressed down in a balanced manner and preventing the sandpaper from tilting.

[0029] In this embodiment, a spring 215 is installed on the surface of the fixing column 212, and the spring 215 is installed between the lower clamping plate 211 and the upper clamping plate 213. The upper clamping plate 213 is reset by the elastic force of the spring 215 itself.

[0030] A spring 215 is installed on the surface of the fixed column 212, located between the lower clamping plate 211 and the upper clamping plate 213. Pushing the upper clamping plate 213 to reset it, the spring automatically rebounds after the pull rod is released, thus improving operating efficiency.

[0031] In this embodiment, rubber pads 219 are fixedly installed above the lower clamping plate 211 and below the upper clamping plate 213. The friction force for clamping sandpaper is achieved by the cooperation of the lower clamping plate 211 and the upper clamping plate 213 through the rubber pads 219.

[0032] Rubber pads 219 are fixedly installed on the contact surfaces of the lower clamping plate 211 and the upper clamping plate 213. The rubber pads 219 provide a high-friction contact surface, which effectively prevents the sandpaper from slipping or falling off during the pushing and grinding process, ensuring the reliability of feeding and the quality of grinding.

[0033] In this embodiment, the pushing unit 22 includes a mounting base 221 fixedly installed on the front side of the base 1. A fixing frame 222 is fixedly installed on the top of the mounting base 221, and a set of sliding columns 223 are fixedly installed inside the fixing frame 222. A sliding block 224 is slidably installed on the sliding column 223, and the lower clamping plate 211 is fixedly installed on the sliding block 224.

[0034] In this embodiment, a handle 225 is fixedly installed on the front side of the sliding block 224 for pushing and pulling the sliding block 224 to move, and a reinforcing rib 226 is fixedly installed at the lower right angle of the mounting base 221 to improve the support strength of the mounting base 221.

[0035] The reinforcing ribs 226 at the bottom of the pushing unit 22 further enhance the support strength of the mounting base 221, ensuring the stability of the entire feeding mechanism during repeated operations.

[0036] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0037] During operation, the sandpaper is first placed between the lower clamping plate 211 and the upper clamping plate 213. The user pulls the lever 218, which drives the rotating shaft 216 to rotate. The rotating shaft 216 drives the two cams 217 to rotate. The rotating cams 217 press the upper clamping plate 213, and the upper clamping plate 213 moves down to clamp the sandpaper.

[0038] Next, the user pushes the sliding block 224 to move by the handle 225, which moves the clamping unit 21. The clamping unit 21 moves the sandpaper between the upper grinding device 4 and the lower grinding device 5. The cylinder of the lifting device 3 moves the upper grinding device 4 down. The motors of the upper grinding device 4 and the lower grinding device 5 drive the internal pulley to rotate. The pulley drives the belt to perform grinding operation on the sandpaper.

[0039] Then, the pushing unit 22 pulls the clamping unit 21, and the rotating shaft 216 rotates in the opposite direction. The spring 215 pushes the upper clamping plate 213 upward through its own elastic force to release the sandpaper and take it out.

[0040] 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 process, method, article, or apparatus.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A highly applicable sandpaper grinding mechanism for sanding sandpaper of different thicknesses, comprising a base (1), a set of lifting devices (3) arranged above the base (1), an upper grinding device (4) arranged below the lifting devices (3), and a lower grinding device (5) arranged on the front side of the base (1), characterized in that: A feeding mechanism (2) is provided on the front side of the base (1) for feeding sandpaper for grinding. The feeding mechanism (2) includes: A clamping unit (21) is disposed on the front side of the base (1) and is used to move the pushing unit (22); The pushing unit (22) is located above the clamping unit (21) and includes a lower clamping plate (211). The four corners of the top of the lower clamping plate (211) are fixedly installed with fixing posts (212). An upper clamping plate (213) is slidably installed on the surface of the fixing posts (212). The upper clamping plate (213) moves down to cooperate with the lower clamping plate (211) to clamp the sandpaper. The clamping unit (21) allows one end of the sandpaper to enter between the belt of the upper grinding device (4) and the lower grinding device (5) for grinding.

2. The high utility sanding block mechanism for sanding different grits of sandpaper of claim 1, wherein: The clamping unit (21) further includes a fixed rod (214) fixedly installed on the upper surface of the fixed column (212), and a rotating shaft (216) is rotatably installed on the inner side of the fixed rod (214), and cams (217) are fixedly installed on both ends of the rotating shaft (216), and a pull rod (218) is fixedly installed on the middle surface of the rotating shaft (216).

3. The high utility sanding block mechanism that facilitates sanding of sand papers of different thicknesses as claimed in claim 1, wherein: A spring (215) is installed on the surface of the fixed column (212), and the spring (215) is installed between the lower clamping plate (211) and the upper clamping plate (213). The upper clamping plate (213) is pushed to reset by the elastic force of the spring (215).

4. The high utility sanding block mechanism for sanding different grits of sandpaper of claim 1, wherein: Rubber pads (219) are fixedly installed above the lower clamping plate (211) and below the upper clamping plate (213). The lower clamping plate (211) and the upper clamping plate (213) cooperate with each other through the rubber pads (219) to achieve the friction force for clamping sandpaper.

5. The high utility sanding block mechanism for sanding different grits of sandpaper of claim 1, wherein: The pushing unit (22) includes a mounting base (221) fixedly installed on the front side of the base (1). A fixing frame (222) is fixedly installed on the top of the mounting base (221), and a set of sliding columns (223) is fixedly installed inside the fixing frame (222). A sliding block (224) is slidably installed on the sliding column (223), and the lower clamping plate (211) is fixedly installed on the sliding block (224).

6. The high utility sanding block mechanism that facilitates sanding of sand papers of different thicknesses as claimed in claim 5 wherein: A handle (225) is fixedly installed on the front side of the sliding block (224) for pushing and pulling the sliding block (224) to move. A reinforcing rib (226) is fixedly installed at the lower right angle of the mounting base (221) to improve the support strength of the mounting base (221).

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