CN211540701U - Polishing machine for polishing grooves - Google Patents
Polishing machine for polishing grooves Download PDFInfo
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- CN211540701U CN211540701U CN201922128992.7U CN201922128992U CN211540701U CN 211540701 U CN211540701 U CN 211540701U CN 201922128992 U CN201922128992 U CN 201922128992U CN 211540701 U CN211540701 U CN 211540701U
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- abrasive belt
- polishing
- grinder
- frame
- driving
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Abstract
The utility model discloses a polishing machine for polishing a groove, which comprises a frame; the grinding component is arranged on the frame and comprises an abrasive belt and a driver, and the driver is connected with the abrasive belt and used for driving the abrasive belt to rotate; the pressing component comprises a pressing wheel, a pressing mechanism and a pressing mechanism, wherein the pressing wheel is provided with an arc end for pressing and holding the abrasive belt; and the operating rod is rotatably arranged on the rack, is connected with the pressing wheel and is used for driving the arc end to press and hold the abrasive belt and form an arc-shaped grinding surface. The curved polishing surface is attached to the curved inner wall of the bending part of the U-shaped groove, so that the curved polishing surface is in surface contact with the curved inner wall, the polishing area of the curved inner wall is increased, polishing of the whole curved inner wall is achieved, and smoothness and flatness of the chair back are guaranteed.
Description
Technical Field
The utility model relates to a mechanical technical field of polishing, concretely relates to buffing machine for polishing recess.
Background
The horizontal belt type polishing machine is one of belt type friction machines, and the object is polished through the rotation of an abrasive belt. In the use process of the existing horizontal belt type polishing machine, the abrasive belt is tightly pressed on the surface of a furniture product with a flat plate model through a square pressing plate, and the furniture product is polished.
Referring to fig. 1, in the existing furniture product, for example, the shape of the chair back is complex, the chair back is provided with a groove 4 such as a U-shaped groove, the inner wall 40 of the bent portion of the U-shaped groove is arc-shaped, the abrasive belt is pressed and held on the arc-shaped inner wall 40 by a traditional square pressure plate, and the shape of the polishing surface of the abrasive belt pressed and held on the arc-shaped inner wall 40 is square, so that the polishing surface of the abrasive belt is in point contact with the arc-shaped inner wall 40, the contact area is small, the whole arc-shaped inner wall 40 cannot be polished, and the smoothness and the flatness of the chair back cannot be ensured.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide a buffing machine for polishing recess, the circular arc terminal surface through the pinch roller impresses the abrasive band on the arc inner wall at the crooked position of recess, presses the shape of the face of polishing of holding the abrasive band on the arc inner wall to be the arc, consequently the abrasive band is with the face contact of curved inner wall to realize that the abrasive band can polish whole curved inner wall, guarantee the smoothness and the roughness of the back of the chair.
In order to achieve the above purpose, the utility model adopts the technical proposal that:
a grinder for grinding a recess, comprising:
a frame;
the grinding assembly is arranged on the frame and comprises a grinding belt and a driver, and the driver is connected with the grinding belt and is used for driving the grinding belt to rotate;
a hold down assembly, comprising:
-a pressure wheel having a circular end for pressing against the sanding belt;
an operating lever, which is rotatably arranged on the frame, is connected with the press wheel and is used for driving the arc end to press and hold the abrasive belt and form an arc-shaped grinding surface.
On the basis of the technical scheme, the pinch roller is semicircular, and the operating rod is connected with the circle center of the pinch roller.
On the basis of the technical scheme, the polishing machine further comprises a working platform, the working platform is located below the machine frame, and an accommodating space for accommodating a groove is formed between the working platform and the abrasive belt.
On the basis of the technical scheme, the bottom end of the working platform is provided with the supporting base, two sliding rails are arranged on two sides of the supporting base respectively, and two sides of the working platform are arranged on the two sliding rails in a sliding mode respectively.
On the basis of the technical scheme, the polishing machine further comprises a height adjusting device, and the height adjusting device is connected with the working platform and used for adjusting the distance between the working platform and the abrasive belt.
On the basis of the above technical solution, the height adjusting device includes:
the top end of the telescopic rod is connected with the working platform;
and the output end of the cylinder is connected with the bottom end of the telescopic rod and used for driving the telescopic rod to stretch.
On the basis of the technical scheme, the operating rod is connected to the rack through a connecting rod, and the connecting rod is horizontally and transversely arranged on the rack.
On the basis of the technical scheme, the operating rod is connected with the connecting rod through the rotating sleeve.
On the basis of the above technical solution, the driver includes:
the driving roller is arranged at one end of the rack;
the driven roller is arranged at the other end of the rack; the abrasive belt is arranged between the driving roller and the driven roller;
and the output end of the motor is connected with the driving roller and is used for driving the driving roller to rotate so as to enable the abrasive belt to rotate between the driving roller and the driven roller.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a pinch roller for polishing machine of recess is convex, when the U type groove of the back of the chair of polishing, the hand action bars drives the pinch roller and moves to the direction that is close to the abrasive band, the pinch roller is pressed the abrasive band and is held on the inner wall in U type groove, the shape of pressing the abrasive band of holding at the opening position in U type groove is the arc surface, be surface contact with the inner wall at the opening position in U type groove, the shape of pressing the abrasive band of holding at the crooked position in U type groove is the arc, curved polishing surface is laminated with the curved inner wall at the crooked position in U type groove mutually, realize curved polishing surface and the surface contact of curved inner wall, increase the area of polishing to curved inner wall, thereby realize polishing to whole curved inner wall, guarantee the smoothness and the roughness of the back of the chair.
Drawings
FIG. 1 is a schematic structural view of a chair back with a U-shaped slot;
fig. 2 is a schematic view of a polishing machine for polishing a groove according to an embodiment of the present invention;
fig. 3 is a schematic structural view of the hold-down assembly.
In the figure: 1-a frame, 2-a grinding assembly, 20-a sanding belt, 21-a driver, 210-a driving roller, 211-a driven roller, 3-a pressing assembly, 30-an operating rod, 31-a pressing wheel, 32-a connecting rod, 4-a groove, 40-an inner wall, 5-a working platform, 50-a base, 51-a sliding rail and 6-a height adjusting device.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, an embodiment of the present invention provides a polishing machine for polishing a groove, taking polishing a chair back with a groove 4 as an example, where the groove 4 is U-shaped, and referring to fig. 2, the polishing machine includes a frame 1, a polishing assembly 2 and a pressing assembly 3, the polishing assembly 2 is disposed on the frame 1, the polishing assembly 2 includes an abrasive belt 20 and a driver 21, the driver 21 is connected to the abrasive belt 20 and is used for driving the abrasive belt 20 to rotate, and the chair back with the U-shaped groove is polished by the rotation of the abrasive belt 20; the pressing component 3 comprises a pressing wheel 31 and an operating rod 30, wherein the pressing wheel 31 is arc-shaped and is provided with an arc end 310 for pressing and holding the abrasive belt 20; an operating rod 30 is rotatably disposed on the frame 1, connected to the pressing wheel 31, and used for driving the arc end 310 to press the sanding belt 20 and form an arc-shaped sanding surface. When a U-shaped groove of a chair back is polished, the hand-press operating rod 30 drives the press wheel 31 to move towards the direction close to the abrasive belt 20, the abrasive belt 20 is pressed and held on the inner wall of the U-shaped groove by the press wheel 31, the shape of the polishing surface of the abrasive belt 20 pressed and held at the opening part of the U-shaped groove is an arc surface and is in surface contact with the inner wall of the opening part of the U-shaped groove, the polishing surface of the abrasive belt 20 pressed and held at the bending part of the U-shaped groove is an arc, the arc-shaped polishing surface is attached to the arc-shaped inner wall 40 of the bending part of the U-shaped groove, the surface contact between the arc-shaped polishing surface and the arc-shaped inner wall 40 is realized, the polishing area of the arc-shaped inner wall 40 is increased, the polishing of the whole arc-shaped inner.
The utility model discloses a buffing machine's theory of use does:
the operating rod 30 is pressed downwards to drive the pressing wheel 31 to move towards the direction close to the abrasive belt 20, so that the pressing wheel 31 presses and holds the abrasive belt 20 on the inner wall of the U-shaped groove, the shape of the polishing surface of the abrasive belt 20 pressed and held at the bending part of the U-shaped groove is arc-shaped, the arc-shaped polishing surface is attached to the arc-shaped inner wall 40 of the bending part of the U-shaped groove, the abrasive belt 20 is driven to rotate through the driver 21, and the abrasive belt 20 rubs on the arc-shaped inner wall 40 to polish the U-shaped groove.
Further, as shown in FIG. 3, puck 31 is semi-circular in shape, and lever 30 is connected to the center of puck 31. The semicircular pressure wheel 31 can meet the requirement that the arc-shaped abrasive belt 20 pressed on the arc-shaped inner wall 40 is completely contacted with the arc-shaped inner wall 40, and the operating rod 30 is connected with the circle center of the pressure wheel 31, so that the structure of the semicircular pressure wheel 31 is more stable.
Further, the polishing machine further comprises a working platform 5, the working platform 5 is located below the machine frame 1, and an accommodating space for accommodating the groove 4 is formed between the working platform 5 and the abrasive belt 20. The utility model discloses a recess 4 is U type groove, when polishing the back of the chair in area U type groove, places the back of the chair in the accommodation space, presses abrasive band 20 through pinch roller 31 down to press abrasive band 20 to press and hold on the inner wall in U type groove and polish to U type groove.
Furthermore, a supporting base 50 is disposed at the bottom end of the working platform 5, two sliding rails 51 are disposed on two sides of the supporting base 50, and two sides of the working platform 5 are slidably disposed on the two sliding rails 51, respectively. When an operator uses the polishing machine to polish the chair back, the operator can manually push the working platform 5 forwards and backwards to enable the working platform 5 to move, so that the chair back with a certain length is polished.
Preferably, the polishing machine further comprises a height adjustment device 6, wherein the height adjustment device 6 is connected to the work platform 5 and is used for adjusting the distance between the work platform 5 and the sanding belt 20, moving the work platform 5 towards the sanding belt 20 to reduce the distance between the work platform 5 and the sanding belt 20 to prevent the sanding belt 20 from being pressed down too far, thereby affecting the rotation of the sanding belt 20, and moving the work platform 5 away from the sanding belt 20 to increase the distance between the work platform 5 and the sanding belt 20 for replacing the backrest of the chair to be polished. The height adjusting device 6 comprises a telescopic rod and a cylinder, and the top end of the telescopic rod is connected with the working platform 5; the output end of the cylinder is connected with the bottom end of the telescopic rod and used for driving the telescopic rod to stretch. The telescopic rod jacks up the working platform 5 to reduce the distance between the working platform 5 and the abrasive belt 20, and the telescopic rod retracts to jack down the working platform 5 to increase the distance between the working platform 5 and the abrasive belt 20.
Optionally, the operating rod 30 is connected to the frame 1 through a connecting rod 32, and the connecting rod 32 is horizontally arranged on the frame 1. Connecting rod 32 is horizontally disposed with abrasive belt 20 close to work platform 5, and operating rod 30 is connected to connecting rod 32 through a rotating sleeve, so that operating rod 30 can rotate around connecting rod 32, thereby realizing that pressing down of operating rod 30 drives pressing wheel 31 to move in a direction close to abrasive belt 20.
Optionally, the driver 21 includes a driving roller 210, a driven roller 211 and a motor, the driving roller 210 is disposed at one end of the frame 1; the driven roller 211 is arranged at the other end of the frame 1; the abrasive belt 20 is provided between the driving roller 210 and the driven roller 211; the motor output is connected to the drive roller 210 and is used to drive the drive roller 210 to rotate, so that the sanding belt 20 rotates between the drive roller 210 and the driven roller 211. A tension roller between the driving roller 210 and the driven roller 211 is used for tensioning the abrasive belt 20 so that the abrasive belt 20 is tightly attached to the inner wall of the U-shaped groove.
The present invention is not limited to the above embodiments, and for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered to be within the protection scope of the present invention. Those not described in detail in this specification are within the skill of the art.
Claims (9)
1. A grinder for grinding a recess, comprising:
a frame (1);
the grinding assembly (2) is arranged on the frame (1), the grinding assembly (2) comprises an abrasive belt (20) and a driver (21), and the driver (21) is connected with the abrasive belt (20) and is used for driving the abrasive belt (20) to rotate;
a compression assembly (3) comprising:
-a pressing wheel (31) having a circular-arc end (310) for pressing against the sanding belt (20);
-an operating lever (30) rotatably arranged on the frame (1), connected to the pressure wheel (31) and used for driving the circular arc end (310) to press the sanding belt (20) and form an arc-shaped sanding surface.
2. A grinder for grinding grooves as claimed in claim 1, characterised in that the pressure wheel (31) is semicircular in shape and the operating lever (30) is connected to the centre of the pressure wheel (31).
3. A grinder for grinding grooves as claimed in claim 1, characterised in that it further comprises a working platform (5), said working platform (5) being located below said machine frame (1), and a space for accommodating a groove (4) being formed between said working platform (5) and said sanding belt (20).
4. A grinder for grinding grooves as claimed in claim 3, characterised in that the bottom of the working platform (5) is provided with a support base (50), two slide rails (51) are respectively arranged on both sides of the support base (50), and two sides of the working platform (5) are respectively slidably arranged on the two slide rails (51).
5. A grinder for grinding grooves as claimed in claim 3, characterised in that it further comprises height adjustment means (6), said height adjustment means (6) being associated with said work platform (5) and being adapted to adjust the distance between said work platform (5) and said sanding belt (20).
6. A grinder for grinding grooves as claimed in claim 5, characterised in that the height adjustment means (6) comprises:
the top end of the telescopic rod is connected with the working platform (5);
and the output end of the cylinder is connected with the bottom end of the telescopic rod and used for driving the telescopic rod to stretch.
7. A grinder for grinding grooves as claimed in claim 1, characterised in that the operating lever (30) is connected to the machine frame (1) by means of a connecting rod (32), the connecting rod (32) being arranged horizontally across the machine frame (1).
8. A grinder for grinding grooves as claimed in claim 7, characterised in that the operating lever (30) is connected to the connecting rod (32) by a rotating sleeve.
9. A grinder for grinding grooves as claimed in claim 1, characterised in that the driver (21) comprises:
a drive roller (210) provided at one end of the frame (1);
a driven roller (211) provided at the other end of the frame (1); the abrasive belt (20) is arranged between the driving roller (210) and the driven roller (211);
and the output end of the motor is connected with the driving roller (210) and is used for driving the driving roller (210) to rotate so as to enable the abrasive belt (20) to rotate between the driving roller (210) and the driven roller (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922128992.7U CN211540701U (en) | 2019-11-29 | 2019-11-29 | Polishing machine for polishing grooves |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922128992.7U CN211540701U (en) | 2019-11-29 | 2019-11-29 | Polishing machine for polishing grooves |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211540701U true CN211540701U (en) | 2020-09-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922128992.7U Active CN211540701U (en) | 2019-11-29 | 2019-11-29 | Polishing machine for polishing grooves |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211540701U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070801A (en) * | 2021-03-31 | 2021-07-06 | 合肥江丰电子材料有限公司 | Automatic polishing device for U-shaped groove of target back plate and using method of automatic polishing device |
-
2019
- 2019-11-29 CN CN201922128992.7U patent/CN211540701U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113070801A (en) * | 2021-03-31 | 2021-07-06 | 合肥江丰电子材料有限公司 | Automatic polishing device for U-shaped groove of target back plate and using method of automatic polishing device |
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