Adjustable narrow-band type sander

Abstract

The utility model relates to an adjustable narrow band type sander which comprises a sander body, a working head assembly and a locking device, and the sander body is rotationally connected with the working head assembly through the locking device; the working head assembly is provided with a locking bolt mounting hole; the locking device comprises a locking bolt, a limiting piece and a locking knob, and the limiting piece is fixedly installed in the machine body and provided with an arc-shaped limiting sliding groove; the locking bolt penetrates through the arc-shaped limiting sliding groove, the end, provided with the step face, of the locking bolt abuts against the limiting piece, and the other end of the locking bolt penetrates through the locking bolt installation hole to be connected with the locking rotary knob. According to the utility model, the narrow-band sander can be quickly adjusted through the locking device; when adjustment is needed, only the locking knob needs to be unscrewed, the working head assembly is rotated, the locking bolt moves along the arc-shaped limiting sliding groove of the limiting piece along with rotation of the working head assembly and is adjusted to the needed position, the locking knob is screwed, other extra tools are not needed in the whole adjustment process, and adjustment is rapid, convenient and efficient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of electric tools, and particularly relates to an adjustable narrow-belt sander. BACKGROUND

[0002] A narrow-belt sander is a kind of high-efficiency mechanical equipment, which is widely used in the fields of wood processing, furniture manufacturing, floor renovation, etc. It has become an indispensable sanding equipment in modern industrial production due to its precise sanding effect and high work efficiency.

[0003] The narrow-belt sander mainly works by relying on the sand belt inside it. The sand belt is a narrow and long piece of sandpaper connected to the main shaft of the machine, which performs sanding treatment on materials such as wood through high-speed rotation and pressure. Its working principle is simple and effective, and by adjusting the tightness and speed of the sand belt, it can meet the sanding needs of different materials and different thicknesses.

[0004] The narrow-belt sander has high work efficiency and can complete a large amount of sanding work in a short time, greatly improving production efficiency. Due to its unique sand belt design, the narrow-belt sander can maintain high precision during sanding, ensuring product quality. The narrow-belt sander is suitable for sanding a variety of materials such as wood, furniture, and floor, and has a wide range of applications. The machine structure is simple and easy to operate, and only needs to adjust the appropriate pressure and speed to work. The narrow-belt sander is widely used in various industries due to its high efficiency, precision, and easy operation.

[0005] The utility model discloses a multifunctional sander. Including sanding machine body, sanding machine body is provided with handrail subassembly, handrail subassembly includes connecting block, left handrail spare, right handrail spare, first bolt, second bolt and bolt cap, connecting block sets up on the back lateral wall of sanding machine body and is integrated into one piece, is seted up with first through -hole on connecting block, the outside one end of left handrail spare and the outside one end of right handrail spare are seted up with threaded hole, the inside one end of left handrail spare is seted up with second through -hole, the inside one end of right handrail spare is seted up with third through -hole, the outside one end of left handrail spare and the outside one end of right handrail spare are closely matched with the cooperation of first bolt and threaded hole, second bolt is in order through second through -hole, first through -hole and third through -hole and is connected with bolt cap with the threaded connection. The utility model discloses through adding handrail subassembly on the sander, provides additional stress part, so that the operator can apply force to the sander at multiple points, reduce the intensity of the force, but it can only adjust the working angle by adjusting the angle of the hand directly, cannot adjust the working angle of the sander, when using, the operator needs to adjust the holding angle constantly, cannot satisfy the operation demand of different angles, greatly reduce the work efficiency. Even if the few sanders that can adjust the angle, also need to disassemble and reassemble the sander with the aid of other tools to realize the angle adjustment, the operation is complex, and the adjustment is slow, when lacking external tools, cannot adjust, poor convenience, low efficiency. SUMMARY

[0006] The utility model provides a kind of adjustable narrowband sander, can quickly and conveniently adjust the working angle of narrowband sander, satisfy different operation needs, and in the operation process, without again with additional tool, the working angle of narrowband sander can be adjusted by its structure.

[0007] The utility model provides a kind of adjustable narrowband sander, including body main part, working head subassembly and locking device, the body main part is rotatedly connected with working head subassembly by locking device;The working head subassembly is equipped with locking bolt mounting hole;The locking device includes locking bolt, limit sheet, locking knob, the limit sheet is fixedly installed in body main part, and it is equipped with arc limit sliding slot;The locking bolt passes through arc limit sliding slot, and the end with step surface is opposite to limit sheet, the other end passes through locking bolt mounting hole and is connected with the locking knob located in the outside of working head subassembly.

[0008] Preferably, the head of the body main part is provided with a front end cover, the front end cover is internally provided with an arc-shaped guide limiting slot, the limit sheet is fixedly installed above the arc-shaped guide limiting slot, and the end of the locking bolt with the step surface is installed in the arc-shaped guide limiting slot. The arc-shaped guide limiting slot limits the end of the locking bolt with the step surface, so that the locking bolt is more stable when moving.

[0009] Preferably, the front end cover is provided with a working head mounting groove, the working head assembly is provided with a front end cover fixing groove, and the working head mounting groove and the front end cover fixing groove are matched and mounted.

[0010] Preferably, the working head mounting groove is provided with two symmetrically arranged cylindrical pin holes, and a cylindrical pin is arranged in the cylindrical pin hole; the front end cover fixing groove is provided with a cylindrical pin ring groove, the cylindrical pin ring groove is provided with two notch grooves matched with the cylindrical pin holes, and the cylindrical pin is inserted into the cylindrical pin ring groove and abuts against the front end cover fixing groove. By inserting the cylindrical pin into the cylindrical pin ring groove and abutting against the front end cover fixing groove, the working head assembly can be more stably mounted in the fuselage main body, and the two notch grooves matched with the cylindrical pin holes can quickly realize the mounting and dismounting of the working head assembly.

[0011] Preferably, the working head assembly comprises a movable support and a working head, and the working head assembly mounting groove is arranged in the movable support.

[0012] Preferably, the fuselage main body is provided with a first alignment part, the working head assembly is provided with a second alignment part matched with the first alignment part, and the cylindrical pin is located in the notch groove when the first alignment part and the second alignment part are aligned. By marking the first alignment part and the second alignment part, the working head assembly can be quickly mounted and dismounted.

[0013] Preferably, the limiting sheet is fixedly arranged in the fuselage main body by a screw.

[0014] Preferably, sandpaper is arranged in the working head assembly.

[0015] The utility model has the following technical effects:

[0016] 1. The locking device is used for realizing the quick adjustment of the narrow belt type sander, the limiting sheet is used for guiding the movement track of the locking bolt, the angle of the working head assembly is adjusted, the locking knob located outside the working head assembly is matched with the locking bolt to tightly lock or loosen the working head assembly, and no additional tool is needed in the operation process. When adjustment is needed, only the locking knob needs to be loosened, the working head assembly is rotated, the locking bolt moves along the arc-shaped limiting sliding groove of the limiting sheet following the rotation of the working head assembly, the working head assembly is adjusted to the position needed, and then the locking knob is tightened, so that the whole adjustment process does not need to be matched with other additional tools. The angle of the working head assembly can be quickly and conveniently adjusted through the self-locking device, that is, the locking knob is loosened when the angle is adjusted, the working head assembly is rotated and adjusted to the angle needed, then the locking knob is tightened, the operation is simple, and the efficiency is high.

[0017] 2. The cylindrical pin is inserted into the cylindrical pin ring groove, so that the working head assembly can be more stably mounted in the fuselage main body, and the two notch grooves matched with the cylindrical pin holes can quickly realize the mounting and dismounting of the working head assembly. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is an exploded view of the adjustable narrow belt sander;

[0019] Figure 2 is a structural schematic view of the adjustable narrow belt sander;

[0020] Figure 3 is a partially assembled structural schematic view of the adjustable narrow belt sander;

[0021] Figure 4 is a structural schematic view of the movable support of the adjustable narrow belt sander;

[0022] Figure 5 is a structural schematic view of the front end cover of the adjustable narrow belt sander.

[0023] In the figure: 1, main body of the machine; 2, working head assembly; 21, movable support; 22, support rod; 3, locking bolt mounting hole; 4, locking bolt; 5, limiting piece; 6, locking knob; 7, arc-shaped limiting sliding groove; 8, front end cover; 9, arc-shaped guiding limiting groove; 10, working head assembly mounting groove; 11, front end cover fixing groove; 12, cylindrical pin hole; 13, cylindrical pin; 14, cylindrical pin ring groove; 15, notch groove; 16, first alignment part; 17, second alignment part; 18, screw; 19, sandpaper; 20, driving wheel. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application is specifically described below in combination with the drawings.

[0025] As Figures 1 to 5As shown, an adjustable narrow belt sander, including machine body 1, working head assembly 2 and locking device, the machine body 1 and working head assembly 2 are connected through the locking device; The working head assembly 2 is provided with locking bolt mounting hole 3; The locking device includes locking bolt 4, limiting piece 5, locking knob 6, the limiting piece 5 is fixedly installed in the machine body 1, which is provided with arc limiting sliding groove 7; The locking bolt 4 passes through the arc limiting sliding groove 7, and the end with a step surface is abutted with the limiting piece 5, and the other end passes through the locking bolt mounting hole 3 and is connected with the locking knob 6 located outside the working head assembly 2. The locking device realizes the rapid adjustment of the narrow belt sander; The locking device realizes the rapid adjustment of the narrow belt sander, the limiting piece 5 guides the movement track of the locking bolt 4, realizes the adjustment of the angle of the working head assembly 2, and the locking knob 6 located outside the working head assembly 2 is matched with the locking bolt 4 to tighten and loosen the working head assembly 2, without the aid of additional tools during operation. When adjustment is needed, only the locking knob 6 is loosened, the working head assembly 2 is rotated, the locking bolt 4 will follow the rotation of the working head assembly 2 and move along the arc limiting sliding groove 7 of the limiting piece 5, and the locking knob 6 is tightened after adjustment to the required position. When adjusting the angle, loosen the locking knob 6, rotate the working head assembly 2 to the required angle, and tighten the locking knob 6. The whole adjustment process does not need to use other additional tools, and the adjustment is quick, convenient and efficient.

[0026] The head of the machine body 1 is provided with a front end cover 8, the front end cover 8 is provided with an arc-shaped guiding limiting groove 9, the limiting piece 5 is fixedly installed above the arc-shaped guiding limiting groove 9, and the end with a step surface of the locking bolt 4 is installed in the arc-shaped guiding limiting groove 9. The end with a step surface of the locking bolt 4 is limited by the arc-shaped guiding limiting groove 9, so that the locking bolt 4 is more stable during movement.

[0027] The front end cover 8 is provided with a working head assembly mounting groove 10, and the working head assembly 2 is provided with a front end cover fixing groove 11, and the working head assembly mounting groove 10 is installed in the front end cover fixing groove 11.

[0028] The working head assembly mounting groove 10 is provided with two symmetrical cylindrical pin holes 12, and the cylindrical pin 13 is installed in the cylindrical pin hole 12; The front end cover fixing groove 11 is provided with a cylindrical pin ring groove 14, the cylindrical pin ring groove 14 is provided with two notched grooves 15 matched with the cylindrical pin hole 12, and the cylindrical pin 13 is inserted into the cylindrical pin ring groove 14 and abuts against the front end cover fixing groove 11. The working head assembly 2 can be more stably installed in the machine body 1 by inserting the cylindrical pin 13 into the cylindrical pin ring groove 14, and the working head assembly 2 can be quickly installed and removed through the two notched grooves 15 matched with the cylindrical pin hole 12.

[0029] The working head assembly 2 comprises a movable support 21 and a supporting rod 22, and the front end cover fixing groove 11 is arranged in the movable support 21.

[0030] The main body is provided with a first alignment part 16, and the working head assembly 2 is provided with a second alignment part 17 matched with the first alignment part 16, and when the first alignment part 16 is aligned with the second alignment part 17, the cylindrical pin 13 is located in the notch groove 15. Marking is conducted through the first alignment part 16 and the second alignment part 17, so as to facilitate quick installation and disassembly.

[0031] The limiting sheet 5 is fixedly installed in the main body 1 through a screw 18.

[0032] The sandpaper 19 is installed in the working head assembly 2.

[0033] The use method of the adjustable narrow-belt sander is as follows:

[0034] When adjustment is needed, the locking knob 6 is first loosened, and then the working head assembly 2 is rotated, and the locking bolt 4 will move along the arc-shaped limiting sliding groove 7 of the limiting sheet 5 following the rotation of the working head assembly 2. When the position needed is adjusted, the locking knob 6 is tightened, and in the adjustment process, the cylindrical pin 13 is always located in the cylindrical pin ring groove 14 and abuts against the front end cover fixing groove 11, so that the working head assembly 2 is stably and firmly installed in the main body 1. Without the aid of external tools, the angle adjustment can be realized through the structure itself.

[0035] When installation is conducted, the locking bolt 4 is passed through the arc-shaped limiting sliding groove 7 of the limiting sheet 5, and the end with a step surface of the locking bolt 4 abuts against the limiting sheet 5. The limiting sheet 5 is fixed above the arc-shaped guiding limiting groove 9 through the screw 18, the end with a step surface of the locking bolt 4 is installed in the arc-shaped guiding limiting groove 9, the cylindrical pin 13 is installed in the cylindrical pin hole 12, the second alignment part 17 of the working head assembly 2 is aligned with the first alignment part 16 of the main body 1 for installation, at this time, the cylindrical pin 13 is clamped in the notch groove 15 of the front end cover fixing groove 11, the other end of the locking bolt 4 is passed through the locking bolt installation hole 3, the locking knob 6 is screwed into the locking bolt 4, the working head assembly 2 is slightly rotated, the locking knob 6 is tightened, the sandpaper 19 is installed in the working head assembly 2, and the installation is completed.

[0036] When disassembly is conducted, the locking knob 6 is loosened, the working head assembly 2 is rotated so that the second alignment part 17 of the working head assembly 2 is aligned with the first alignment part 16 of the main body 1, the locking knob 6 and the sandpaper 19 are removed, the supporting rod 22 is directly removed, the limiting sheet 5 and the locking bolt 4 are gradually removed, and the disassembly is completed.

[0037] The above-described embodiments are merely preferred modes of the present application, and are not intended to limit the scope of the present application, and various modifications and improvements to the technical solutions of the present application made by those of ordinary skill in the art without departing from the design spirit of the present application shall fall within the protection scope of the present application as defined by the claims.

Claims

1. An adjustable narrow belt sander characterized by: The utility model provides a kind of machine body, working head assembly and locking device, the machine body is rotatably connected with working head assembly by locking device;The working head assembly is equipped with locking bolt mounting hole;The locking device includes locking bolt, limit sheet, locking knob, the limit sheet is fixedly installed in machine body, and it is equipped with arc-shaped limit sliding slot;The locking bolt passes through arc-shaped limit sliding slot, and the end with step surface is resisted with limit sheet, and the other end passes through locking bolt mounting hole and is connected with the locking knob located outside working head assembly.

2. An adjustable narrow belt sander as claimed in claim 1 wherein: The head of the machine body is equipped with front end cover, the front end cover is equipped with arc-shaped guide limit slot, the limit sheet is fixedly installed above arc-shaped guide limit slot, and the end of the locking bolt with step surface is installed in arc-shaped guide limit slot.

3. An adjustable narrow belt sander as claimed in claim 2 wherein: The front end cover is equipped with working head assembly installation groove, and the working head assembly is equipped with front end cover fixed groove, and the working head assembly installation groove and front end cover fixed groove are matched and installed.

4. An adjustable narrow belt sander as claimed in claim 3 wherein: The working head assembly installation groove is equipped with two symmetrical cylindrical pin holes, and the cylindrical pin is installed in the cylindrical pin hole;The front end cover fixed groove is equipped with cylindrical pin ring groove, and the cylindrical pin ring groove is equipped with two notched grooves matched with the cylindrical pin hole, and the cylindrical pin is inserted into the cylindrical pin ring groove and resisted with front end cover fixed groove.

5. An adjustable narrow belt sander as claimed in claim 4 wherein: The working head assembly includes movable support and support rod, and the front end cover fixed groove is arranged in the movable support.

6. An adjustable narrow belt sander as claimed in claim 4 wherein: The machine body is equipped with first alignment part, and the working head assembly is equipped with second alignment part matched with the first alignment part, and when the first alignment part and the second alignment part are aligned, the cylindrical pin is located in the notched groove.

7. An adjustable narrow belt sander as defined in claim 1, wherein: The limit sheet is fixedly installed in the machine body by screw.

8. An adjustable narrow belt sander as defined in claim 1, wherein: The working head assembly is installed with sandpaper.

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