CN111230666A

CN111230666A - Displacement preventer for sander

Info

Publication number: CN111230666A
Application number: CN202010034029.7A
Authority: CN
Inventors: 黄贺飞; 王春阳; 高硕�; 贾绍龙
Original assignee: Jinyu Tiantan Tangshan Wood Technology Co Ltd
Current assignee: Jinyu Tiantan Tangshan Wood Technology Co Ltd
Priority date: 2020-01-13
Filing date: 2020-01-13
Publication date: 2020-06-05
Anticipated expiration: 2040-01-13
Also published as: CN111230666B

Abstract

The invention relates to a displacement prevention device of a sanding machine, which belongs to the technical field of sanding machines, and is positioned in two frames of the sanding machine, prevents the displacement of an abrasive belt of the sanding machine in the movement process and is positioned at the side end of the abrasive belt. The cylinder and the limiting plate can limit the displacement of the abrasive belt, so that the abrasive belt is prevented from outwards displacing in the operation process; the vertical plate increases the volume and the area, is in contact with the two frames, ensures that the abrasive belt cannot fly out after being separated from the abrasive belt roller, and improves the safety.

Description

Displacement preventer for sander

Technical Field

The invention relates to the technical field of sanding machines, in particular to a displacement prevention device of a sanding machine, which can prevent a sanding belt from being displaced and falling off a sanding belt roller and has a protection effect.

Background

The sander uses abrasive belt to sand the rough surface of the workpiece to make it smooth, and is widely used in the industries of wood products, artificial stone products, metal products, plastic and rubber products, etc.

Referring to fig. 1, fig. 1 is a schematic diagram of a conventional structure of a sanding machine, and a sanding belt of the sanding machine may have a problem of coming off in a running process; and no means for preventing displacement of the sanding belt is arranged on the sanding machine.

The above prior art solutions have the following drawbacks: 1. the protective device with a simple structure has poor protective effect, the problem of abrasive belt separation still exists, the abrasive belt is separated in the operation process, and the abrasive belt can be pumped to workers, so that the danger is high; 2. the abrasive band can produce the displacement at the operation in-process, if the displacement is great, will reduce greatly to the dull polish effect of machined part, unqualified work piece can appear, has reduced work efficiency.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a displacement prevention device of a sanding machine, which can prevent a sanding belt from displacing and has a protection function.

The above object of the present invention is achieved by the following technical solutions: the anti-displacement device of the sander is positioned in two frames of the sander, the sanding belt is driven by two sanding belt rollers to perform sanding work, the sanding belt of the sander is prevented from displacing in the movement process and is positioned at the side ends of the sanding belt, the anti-displacement device comprises two vertical plates for preventing the sanding belt from being taken off the sanding belt rollers, a lifting assembly and a control assembly for limiting the displacement of the sanding belt, the vertical plates are respectively positioned at the two side ends of the sanding belt and are movably connected with the two end heads of the sanding belt rollers, the two side edges of the vertical plates are respectively contacted with the inner side surfaces of the two frames, the lifting assembly and the control assembly are positioned between the vertical plates and the sanding belt, the lifting assembly is fixed on the vertical plates, the control assembly is movably connected with the lifting assembly, and the control assembly is.

By adopting the technical scheme, the vertical plate has the function of preventing the abrasive belt from being separated, the control assembly limits the abrasive belt, and the lifting assembly drives the control assembly to move up and down to adjust the relative position of the control assembly to the abrasive belt, so that the displacement of the abrasive belt is better limited at a proper position.

The vertical plates are provided with connecting holes, fixing pieces fixed in the connecting holes are arranged in the connecting holes, the center parts of the fixing pieces are provided with through holes, and two ends of the abrasive belt roller are respectively inserted into the through holes of the two vertical plates and rotate in the through holes.

By adopting the technical scheme, the movable connection between the vertical plate and the abrasive belt roller is realized, and the vertical plate cannot be influenced by the rotation of the abrasive belt roller.

The present invention in a preferred example may be further configured to: the vertical plate is internally provided with a sliding chute, and the cross section of the sliding chute is in a convex shape.

Through adopting above-mentioned technical scheme, the setting of spout can make lifting unit remove along the spout.

The present invention in a preferred example may be further configured to: the lifting assembly comprises a motor and a lead screw connected with the motor, and the motor is fixedly connected to the vertical plate.

Through adopting above-mentioned technical scheme, the motor is connected through the shaft coupling with the lead screw, and motor drive lead screw rotates.

The present invention in a preferred example may be further configured to: the vertical plate is provided with two supporting tables for holding the lead screw, and the supporting tables are provided with threaded holes for inserting the lead screw conveniently.

Through adopting above-mentioned technical scheme, the brace table has the effect of bracketing, and the both ends of lead screw are pegged graft respectively with two brace tables and can be at the screw hole internal rotation, and the brace table can play the effect of fixed stay to the lead screw.

The present invention in a preferred example may be further configured to: the control assembly comprises a base, a double-piston cylinder, two limiting plates and a gas storage tank, wherein the two limiting plates and the gas storage tank are arranged oppositely, the base is arranged on the vertical plate, a threaded hole for inserting a lead screw is formed in the center of the base, a convex-shaped sliding block matched with the sliding groove in use is arranged at the bottom of the base, the control assembly can slide on the vertical plate through the lifting assembly, the double-piston cylinder is located on the base and connected with the gas storage tank through a gas pipe, piston rods at two ends of the double-piston cylinder are respectively connected with the two limiting plates and used for adjusting the distance between the two limiting plates in a telescopic mode, and the.

Through adopting above-mentioned technical scheme, the base is located between two brace tables, distance between two limiting plates of two piston cylinder's flexible control, long-time high-speed in operation, the abrasive band can produce the removal forward or backward on the abrasive band roller, two limiting plates not only can be controlled to the cylinder, it is individual still to have the effect that blocks, after the cylinder is touch in the abrasive band, just can not outwards remove again, the abrasive band can be guaranteed to two limiting plates and moves on same straight line, supplementary completion cylinder is to the limiting displacement in abrasive band, the screw hole of base is inserted to the lead screw, make control assembly suit on the lead screw and follow the rotation of lead screw and remove, position between adjustment cylinder and two limiting plates and the abrasive band.

The present invention in a preferred example may be further configured to: the limiting plate is provided with a long plate and a short plate, the long plate and the short plate are fixedly connected and are L-shaped, the abrasive belt is positioned between the two short plates, and the tail end of the long plate is connected with a piston rod of the double-piston cylinder.

Through adopting above-mentioned technical scheme, the activity space of the piston rod of double-piston cylinder has been increased in the setting of long board and short slab, makes double-piston cylinder when the shrink, and the limiting plate can not influence double-piston cylinder's shrink.

The present invention in a preferred example may be further configured to: two sides of the vertical plate are respectively provided with a connecting plate, and the connecting plates are respectively contacted with the inner side surfaces of the two racks.

Through adopting above-mentioned technical scheme, the connecting plate has increased the volume and the area of riser to contact with the frame of both sides, outwards deviate from when the abrasive band, the effect of blockking of riser, the abrasive band can not run to the outside of equipment, can not contact the staff, has improved the security.

The connecting plate and the vertical plate can be of an integral structure or a split structure.

The present invention in a preferred example may be further configured to: the central control system controls the opening and closing of the valve, the valve controls the expansion and contraction of the double-piston cylinder, and the double-piston cylinder drives the two limiting plates to be close to and far away from each other.

By adopting the technical scheme, when the distance between the two limiting plates is adjusted, the central control system opens/closes the signal transmission valve, the opening/closing of the valve controls the extension/contraction of the double-piston cylinder, and the double-piston cylinder drives the two limiting plates to be far away from/close to each other.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the cylinder and the limiting plate of the control assembly can limit the displacement of the abrasive belt, the abrasive belt is prevented from outwards displacing in the operation process, the cylinder and the limiting plate supplement each other, the lifting assembly can adjust the upper position and the lower position of the cylinder and the limiting plate, the control assembly can better complete the work of preventing the displacement of the abrasive belt, the normal operation of the abrasive belt is guaranteed, and the working efficiency is improved.

2. The vertical plate increases the volume and area, can contact with the frames on the two sides of the abrasive belt, does not leave a gap through the abrasive belt, ensures that the abrasive belt does not fly out after being separated from the abrasive belt roller, and greatly improves the safety of the use of equipment.

Drawings

Fig. 1 is a schematic view of a prior art sander.

Fig. 2 is a schematic structural diagram (one) of the present invention.

Fig. 3 is a schematic structural diagram (two) of the present invention.

Fig. 4 is a front view of the present invention.

Fig. 5 is a schematic view of an installation structure of the vertical plate, the control assembly and the lifting assembly.

Fig. 6 is a schematic structural view of the control assembly and the lifting assembly of the present invention.

Fig. 7 is a schematic structural view of the vertical plate and the connecting plate of the present invention.

In the figure, 1, a frame, 2, an abrasive belt, 3, a vertical plate, 31, a sliding groove, 311, a first sliding groove, 312, a second sliding groove, 32, a connecting plate, 33, a slot, 4, a lifting assembly, 41, a motor, 42, a screw rod, 5, a control assembly, 51, a base, 511, a sliding block, 5111, a first sliding block, 5112, a second sliding block, 52, a double-piston cylinder, 53, a limiting plate, 531, a long plate, 532, a short plate, 6 and a protection plate.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 2, the displacement preventing device for a sanding machine disclosed by the invention is positioned in two frames 1 of the sanding machine, a sanding belt is driven by two sanding belt rollers to perform sanding work, the sanding belt 2 of the sanding machine is prevented from being displaced in the moving process and is positioned at the side end of the sanding belt 2, the displacement preventing device comprises two vertical plates 3 for preventing the sanding belt 2 from falling off the sanding belt rollers, two lifting unit 4 and two control assembly 5 of restriction abrasive band 2 displacement, riser 3 is located the both ends end of abrasive band 2 respectively and with the both ends swing joint of abrasive band roller, two sides of riser 3 contact with the medial surface of two frames 1 respectively, refer to fig. 3 and 4, lifting unit 4 and control assembly 5 are located between riser 3 and abrasive band 2, lifting unit 4 is fixed on riser 3, control assembly 5 and lifting unit 4 swing joint, control assembly 5 is through the motion adjustment of lifting unit 4 and the relative position of abrasive band 2.

Referring to fig. 5 and 7, a sliding groove 31 is formed in the vertical plate 3, and the cross section of the sliding groove 31 is convex.

Referring to fig. 5 and 6, the lifting assembly 4 includes a motor 41 and a screw 42 connected to the motor 41, and the motor 41 is fixedly connected to the vertical plate 3.

Referring to fig. 5 and 6, two support tables for holding the screw rod 42 are arranged on the vertical plate 3, and threaded holes for inserting the screw rod 42 are formed in the support tables.

Referring to fig. 5 and 6, the control assembly 5 includes a base 51, a double-piston cylinder 52, two limiting plates 53 and an air storage tank which are arranged oppositely, the base 51 is arranged on the vertical plate 3, and a threaded hole for inserting the lead screw 42 is formed in the center of the base 51, a convex slider 511 which is used in cooperation with the chute 31 is arranged at the bottom of the base 51, the number of the sliders 511 needs to be matched with the number of the control assembly 5, the double-piston cylinder 52 is arranged on the base 51 and connected with the air storage tank through an air pipe, piston rods at two ends of the double-piston cylinder 52 are respectively connected with the two limiting plates 53 and telescopically adjust the distance between the two limiting plates 53, and the abrasive belt 2 is.

The number of the sliding grooves 31 on the vertical plate 3 can be equal to that of the sliding blocks 511, and can also be larger than that of the sliding blocks 511, so that when the displacement preventing device is increased, the control assembly 5 and the lifting assembly 4 are also increased, the vertical plate 3 does not need to be grooved again, and the increased sliding blocks 511 of the control assembly 5 can be directly slid into the sliding grooves 31.

The sliding chute 31 can be located on the vertical plate 3, two ends of the sliding chute 31 extend outwards to two ends of the vertical plate 3, or located on the connecting plate 32, two ends of the sliding chute 31 extend outwards to two ends of the connecting plate 32.

Referring to fig. 6, the sliding groove 31 has a first sliding groove 311 and a second sliding groove 312, the first sliding groove 311 is located on the vertical plate 3, the second sliding groove 312 is located on the connecting plate 32, in order to facilitate the installation of the control assembly 5 and the vertical plate 3, a transverse slot 33 is inwardly opened on the vertical plate 3, two ends of the second sliding groove 312 extend outwards to open the upper end surface and the lower end surface of the connecting plate 32, and two ends of the first sliding groove 311 extend outwards to communicate with the slot 33.

Referring to fig. 7, the slider 511 has a first slider 5111 cooperating with the first slide groove 311 and a second slider 5112 cooperating with the second slide groove 312.

During installation, the first sliding block 5111 is aligned to the first sliding groove 311, the second sliding block 5112 is aligned to the second sliding groove 312, the control assembly 5 is pushed downwards, the sliding blocks slide into the sliding grooves, and the supporting table limits the screw rod 42, so that the control assembly 5 cannot slide out of the vertical plate 3.

The slide groove 31 and the slider 511 may be provided as only one.

Referring to fig. 7, chute 31 has first spout 311 and second spout 312, first spout 311 is located riser 3, second spout 312 is located connecting plate 32, for the convenience of installation, the both ends that first spout 311 leads to extend outwards to the both ends head department of riser 3, the both ends of second spout 312 extend outwards to 1, the cylinder and the limiting plate of control assembly can restrict the displacement of abrasive band, prevent the outside displacement of abrasive band among the operation process, cylinder and limiting plate complement each other, the upper and lower position of cylinder and limiting plate can be adjusted to the lift subassembly, make the better completion of control assembly prevent the work of abrasive band displacement, the normal operation of abrasive band has been guaranteed, work efficiency is improved.

The vertical plate increases the volume and area, can contact with the frames on two sides of the abrasive belt, does not leave a gap through the abrasive belt, and does not fly out after the abrasive belt is separated from the abrasive belt roller, thereby greatly improving the safety of the use of equipment.

Referring to fig. 6, the limiting plate 53 has a long plate 531 and a short plate 532, the long plate 531 and the short plate 532 are fixedly connected and are L-shaped, the sanding belt 2 is located between the two short plates 532, and the end of the long plate 531 is connected with the piston rod of the double-piston cylinder 52.

Referring to fig. 2 and 5, two sides of the vertical plate 3 are respectively provided with a connecting plate 32, and the connecting plates 32 are respectively contacted with the inner side surfaces of the two racks 1.

The gas storage tank is an existing device for storing gas, and is connected with a cylinder through a gas pipe, a control valve is arranged on the gas pipe, a central control system controls the valve to be opened/closed, the control valve controls two piston rods of the double-piston cylinder 52 to stretch, and the double-piston cylinder 52 drives two limiting plates 53 to mutually approach and separate.

The sander comprises one or more groups of sanding mechanisms, and the displacement preventing device can be arranged according to the number of the sanding mechanisms.

Example one

When a group of abrasive belt sanding mechanisms are arranged on the sanding machine, two groups of anti-displacement devices are arranged and are respectively arranged at two side ends of the abrasive belt 2, the abrasive belt 2 is limited from two ends, the two groups of anti-displacement devices are arranged on the same side surface of the abrasive belt 2, the two groups of anti-displacement devices can also be respectively arranged on two different side surfaces of the abrasive belt 2, and the limiting work on the abrasive belt 2 is better completed.

Example two

When a group of abrasive belt sanding mechanisms are arranged on the sanding machine, four groups of displacement prevention devices are arranged, two groups of displacement prevention devices are arranged at one side end of the abrasive belt 2, the other two groups of displacement prevention devices are arranged at the other side end of the abrasive belt 2, and the two side surfaces of the abrasive belt 2 are limited, so that the limiting work of the abrasive belt 2 is better completed.

When the sander comprises a plurality of groups of abrasive belt sanding mechanisms, the displacement preventing device can also be provided with a plurality of groups.

The installation of the invention: firstly, the base 51 of the control component 5 slides into the sliding groove 31 through the sliding block 511, so that the vertical plate 3 is connected with the control component 5, the support table is welded on the vertical plate 3, the screw rod 42 and the motor 41 are connected through the coupler and are sequentially inserted into the support table below, the threaded hole of the base and the support table above from bottom to top, then the two limit plates 53 are connected with the double piston rods of the double-piston cylinder 52, then the vertical plate 3 is connected with the abrasive belt roller, so that the abrasive belt 2 is positioned between the two limit plates, and the installation can be completed.

The implementation principle of the invention is as follows: the abrasive belt roller drives the abrasive belt 2 to perform abrasive work on a workpiece, in the long-time running process of the abrasive belt roller, the abrasive belt 2 can generate displacement and move outwards on the abrasive belt roller, the control valve is closed according to the larger displacement, two piston rods of the double-piston cylinder 52 contract inwards, the two limiting plates 53 are close to each other, the displacement condition of the abrasive belt 2 can be reduced, the abrasive belt 2 can be ensured to touch the inner side of the double-piston cylinder 52 when moving outwards, the abrasive belt 2 cannot move outwards due to the limiting effect of the double-piston cylinder 52, meanwhile, the abrasive belt 2 can be prevented from being taken off from the abrasive belt roller due to the arrangement of the vertical plate 3 and the connecting plate 32, the abrasive belt 2 cannot fly outwards, and the normal running of the abrasive belt 2 is better ensured due to the arrangement of the displacement prevention devices arranged at the two ends of the; when abrasive belt 2 normally operates, the control valve is opened to control the double pistons of double-piston cylinder 52 to extend outwards, and two limiting plates 53 are far away from each other to reserve enough space for abrasive belt 2 to operate, so that normal operation of abrasive belt 2 is not affected.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a displacement device is prevented to grinder, is located two frames (1) of grinder, prevents the displacement of abrasive band (2) of grinder in the motion process and is located the side of abrasive band (2), its characterized in that: the abrasive belt roll lifting device comprises two vertical plates (3) for preventing an abrasive belt (2) from falling off an abrasive belt roll, a lifting assembly (4) and a control assembly (5) for limiting displacement of the abrasive belt (2), wherein the vertical plates (3) are respectively positioned at two side ends of the abrasive belt (2) and movably connected with two end heads of the abrasive belt roll, two side edges of each vertical plate (3) are respectively contacted with inner side surfaces of two frames (1), the lifting assembly (4) and the control assembly (5) are positioned between the vertical plates (3) and the abrasive belt (2), the lifting assembly (4) is fixed on the vertical plates (3), the control assembly (5) is movably connected with the lifting assembly (4), and the control assembly (5) is adjusted through movement of the lifting assembly (4) and relative positions of the abrasive belt (2).

2. The anti-displacement device of the sanding machine as claimed in claim 1, characterized in that: a sliding groove (31) is formed in the vertical plate (3) inwards, and the cross section of the sliding groove (31) is in a convex shape.

3. The anti-displacement device of the sanding machine as claimed in claim 1, characterized in that: the lifting assembly (4) comprises a motor (41) and a lead screw (42) connected with the motor (41), and the motor (41) is fixedly connected to the vertical plate (3).

4. The anti-displacement device of the sanding machine as claimed in claim 3, characterized in that: the vertical plate (3) is provided with two supporting tables for placing the screw rod (42), and the supporting tables are provided with threaded holes for conveniently inserting the screw rod (42).

5. The anti-displacement device of the sanding machine as claimed in claim 1, characterized in that: the control assembly (5) comprises a base (51), a double-piston cylinder (52), two limiting plates (53) and a gas storage tank, wherein the two limiting plates (53) and the gas storage tank are oppositely arranged, the base (51) is arranged on the vertical plate (3), a threaded hole for inserting the lead screw (42) is formed in the center position of the base (51), a convex-shaped sliding block (511) matched with the sliding groove (31) for use is arranged at the bottom of the base (51), the double-piston cylinder (52) is located on the base (51) and connected with the gas storage tank through a gas pipe, piston rods at two ends of the double-piston cylinder (52) are respectively connected with the two limiting plates (53) and are used for adjusting the distance between the two limiting plates (53) in a telescopic mode, and the abrasive belt (2.

6. The anti-displacement device of the sanding machine as claimed in claim 5, characterized in that: the limiting plate (53) is provided with a long plate (531) and a short plate (532), the long plate (531) and the short plate (532) are fixedly connected and are L-shaped, the abrasive belt (2) is positioned between the two short plates (532), and the tail end of the long plate (531) is connected with a piston rod of the double-piston cylinder (52).

7. The anti-displacement device of the sanding machine as claimed in claim 1, characterized in that: two sides of the vertical plate (3) are respectively provided with a connecting plate (32), and the connecting plates (32) are respectively contacted with the inner side surfaces of the two racks (1).

8. The anti-displacement device of the sanding machine as claimed in claim 1, characterized in that: the central control system controls the opening and closing of the valve, the valve controls the extension and retraction of the double-piston cylinder (52), and the double-piston cylinder (52) drives the two limiting plates (53) to mutually approach and depart from each other.