CN108838802B

CN108838802B - Woodwork grinding device

Info

Publication number: CN108838802B
Application number: CN201810598923.XA
Authority: CN
Inventors: 朱培钢
Original assignee: Jiangsu Jinding Construction Group Co ltd
Current assignee: Jiangsu Jinding Construction Group Co ltd
Priority date: 2018-06-12
Filing date: 2018-06-12
Publication date: 2023-11-21
Anticipated expiration: 2038-06-12
Also published as: CN108838802A

Abstract

The application belongs to the technical field of wood processing, and particularly discloses a woodwork polishing device which comprises a base, a push block, a clamping unit and a plurality of polishing units, wherein the push block is connected to the base in a sliding manner, and racks are respectively fixed on the left side and the right side of the push block; the polishing unit comprises a transmission shaft, a rotating shaft and a polishing roller; a first gear meshed with the rack is fixed on the transmission shaft, and a second gear is fixed on the rotation shaft; the polishing roller is internally provided with a cavity, the surface of the polishing roller is provided with a plurality of through holes, wedge-shaped polishing blocks are connected to the through holes in a sliding manner, and reset springs are connected to the polishing blocks; the sanding block is fixed with a clamping strip, and the sanding roller is provided with a groove; the clamping unit comprises a frame, a clamping table and a wedge block, and the inclined surface of the wedge block faces one side of the movement direction of the wood to be polished; a sliding groove is formed in the frame, a sliding block is fixed on the wedge block, and a compression spring is connected between the sliding block and the sliding groove; a stay wire is connected between the wedge block and the push block. The device can be used for polishing two symmetrical cutting surfaces of wood simultaneously, and efficiency is improved.

Description

Woodwork grinding device

Technical Field

The application belongs to the technical field of wood processing, and particularly relates to a woodwork polishing device.

Background

Along with the progress of scientific technology, development of new materials and deepening of wood processing technology, woodworking machines are rapidly developed in the aspects of product variety and specification, quantity, dynamic and static performance, precision, mechanization, automation, safety, new technology application and the like, and enter a new stage in the aspects of modernization, automation, electromechanical instrument integration and continuous production.

During wood processing, wood is usually cut, so that the size of the wood meets the actual requirement, burrs are usually generated in the wood cutting process, and the quality of products is affected by the burrs, so that the wood needs to be polished after cutting. Polishing is carried out by using a polishing machine, the polishing machine is mainly divided into a handheld polishing machine and a desk-top polishing machine, the handheld polishing machine is used, the labor intensity of workers is high, and a large-scale wood processing factory is generally mainly provided with the desk-top polishing machine. If two symmetrical cutting surfaces of wood are polished by using the existing table type polishing machine, a clamping or adsorbing mode is generally adopted, one plane is polished firstly, and then the other plane is polished, so that the efficiency is low.

Disclosure of Invention

The application aims to provide a woodwork polishing device which can polish two symmetrical cutting surfaces of wood simultaneously and improves efficiency.

In order to achieve the above purpose, the basic scheme of the application is as follows: the wooden product polishing device comprises a base, a pushing block for pushing the wood, a clamping unit and a plurality of polishing units positioned at the left side and the right side of the pushing block, wherein the pushing block is connected to the base in a sliding manner, and racks are respectively fixed at the left side and the right side of the pushing block; the polishing unit comprises a transmission shaft, a rotating shaft and a polishing roller fixed on the rotating shaft, and the transmission shaft and the rotating shaft are both rotationally connected to the base; a first gear meshed with the rack is fixed on the transmission shaft, and a second gear meshed with the first gear is fixed on the rotation shaft; the polishing roller is internally provided with a cavity, the surface of the polishing roller is provided with a plurality of through holes, wedge-shaped polishing blocks are connected to the through holes in a sliding manner, the inclined surfaces of the polishing blocks face to one side of the wood to be polished in the moving direction, and the polishing blocks are connected with reset springs; the sanding block is fixedly provided with a clamping strip, and the sanding roller is provided with a groove which is in sliding connection with the clamping strip; the clamping unit comprises a frame, a clamping table with the upper surface positioned on the same horizontal plane with the upper surface of the pushing block, and a wedge block positioned above the clamping table, wherein the inclined surface of the wedge block faces to one side of the movement direction of wood to be polished; the pushing block is provided with a clamping groove which can be clamped with the clamping table; a sliding groove is formed in the frame, a sliding block which is connected in the sliding groove in a sliding way is fixed on the wedge block, and a pressure spring is connected between the sliding block and the sliding groove; and a stay wire is connected between the wedge block and the push block, and the stay wire can apply upward acting force to the wedge block.

The working principle of the basic scheme is as follows: when the cutting surface of the wood is polished, the wood is placed on the pushing block, so that the cutting surface to be polished is opposite to the polishing roller. The driving ejector pad moves to clamping bench one side, and the ejector pad drives timber and moves ahead simultaneously, and in this in-process, rack drive first gear on the ejector pad rotates, and first gear passes through the second gear and drives pivot and epaxial grinding roller rotation, and the grinding roller rotates, and the inclined plane of the grinding piece that is close to timber one side is towards the direction of timber motion. In the process that the pushing block pushes wood to enter the position between the polishing units on two sides, the wood can be in contact with the inclined plane of the polishing block, the wood applies acting force to the inclined plane of the polishing block, so that the polishing block slides towards one side of the cavity along the groove, the polishing block extrudes the reset spring, the polishing block can be tightly attached to the surface of a wood cutting surface under the acting force of the reset spring, and the polishing block polishes the cutting surface of the wood along with the polishing roller in the process of rotating together. When the pushing block drives the timber to move to the wedge block, the timber applies acting force to the wedge block, so that the wedge block moves upwards along the sliding groove, and the pressure spring is compressed. When the clamping groove on the push block is clamped on the clamping table, the lower surface of the left side of the wood is positioned on the clamping table, and the lower surface of the wedge block is pressed on the upper surface of the left side of the wood. The push block is driven to move in the opposite direction, and the stay wire is gradually tensioned. When the push block moves to a fixed position, the wood is completely separated from the push block, and under the action of the pulling force of the pull wire, the wedge block moves upwards to be gradually far away from the wood, and under the action of the gravity of the wood, the wedge block falls from the clamping table and is separated from the clamping table due to the fact that the acting force exerted by the wedge block is not generated.

The beneficial effect of this basic scheme lies in:

1. the polishing units are arranged on two opposite sides of the pushing block, and can polish two opposite cutting surfaces of wood simultaneously in the process of wood movement, so that polishing efficiency is effectively improved.

2. When the pushing block pushes wood to move, the pushing block can drive the grinding roller to rotate through the rack, the first gear and the second gear, so that the grinding roller can effectively grind a cutting surface of the wood, namely in the application, the wood can be simultaneously driven to move and the grinding roller to rotate by utilizing one power source, and the cost of the device is saved, and meanwhile, the structure of the device is effectively simplified. And the direction of the rotation of the polishing roller is opposite to the advancing direction of the wood, so that the polishing block on the polishing roller can polish the wood better.

3. According to the application, wood is not directly polished through the surface of the polishing roller, but the polishing block is utilized, the polishing block is arranged in a sliding manner and is connected with the reset spring, and under the action of the reset spring, the polishing block can be tightly attached to the cutting surface of the wood, so that the polishing block can be used for effectively polishing the wood. The position of the polishing block can be adjusted, even if the size of the wood to be polished slightly changes, the polishing block can polish the wood, and the application range of the device is improved.

4. The polishing blocks are arranged into wedges, and when the wood is in contact with the wedges, the wood can enable the polishing blocks to move to one side of the cavity along the grooves, so that the polishing blocks are prevented from interfering the movement of the wood.

5. After the wood is polished, the wood is separated from the pushing block under the combined action of the wedge block and the clamping table; with the push block gradually reset, under the action of the pull wire, the wedge block moves upwards and gradually moves away from the wood, and under the action of the gravity of the wood, the wedge block falls from the clamping table, so that the wedge block is automatically separated from the clamping table. In the process, the wood is automatically unloaded, and workers are not required to operate, so that the labor cost is effectively reduced.

Further, the device also comprises a driving unit for pushing the pushing block to reciprocate, wherein the driving unit is a hydraulic cylinder, and a piston rod of the hydraulic cylinder is fixedly connected with the pushing block. The hydraulic cylinder has wide sources, and the pushing block is pushed to reciprocate by the hydraulic cylinder, so that the operation is simple.

Further, the clamping unit further comprises an adjusting roller defining a force transmission direction of the stay wire. The adjusting roller is arranged, and can change the force transmission direction of the stay wire to the wedge block, so that the upward acting force of the stay wire to the wedge block can be ensured.

Further, the limiting block used for limiting the wood to be polished is arranged on the pushing block. The limiting block has limiting effect on the wood, so that the wood is prevented from shifting randomly in the polishing process.

Further, a strip-shaped groove is formed in the base, and a protrusion which is connected in the strip-shaped groove in a sliding mode is fixed on the pushing block. The arrangement of the strip-shaped groove and the bulge limits the movement of the push block, so that the push block can only slide along the strip-shaped groove, and the push block is prevented from deflecting in the movement process.

Drawings

FIG. 1 is a front cross-sectional view of an embodiment of a wood product polishing device of the present application;

FIG. 2 is a right side cross-sectional view of an embodiment of a wood product polishing device of the present application;

fig. 3 is a cross-sectional view of the grinding roll of fig. 1.

Detailed Description

The following is a further detailed description of the embodiments:

reference numerals of fig. 1 to 3 of the specification include: base 10, bar groove 11, push block 20, protruding 21, rack 22, stopper 23, centre gripping groove 24, transmission shaft 30, first gear 31, grinding roller 40, through-hole 41, second gear 42, pivot 43, reset spring 44, grinding block 45, card strip 451, timber 50, frame 60, pressure spring 61, spout 62, voussoir 70, centre gripping platform 80, dancer roll 90, act as go-between 91.

As shown in fig. 1 and 2, a polishing device for wood products includes a base 10, a push block 20, a clamping unit, and a driving unit for driving the push block 20 to reciprocate, in this embodiment, the driving unit is a hydraulic cylinder, and a piston rod of the hydraulic cylinder is fixedly connected with the push block 20 (the hydraulic cylinder is not shown in the figure). The push block 20 is provided with a plurality of polishing units on both left and right sides, and the wood 50 to be polished can be positioned between the polishing units on both left and right sides. The push block 20 is used for pushing the wood 50 to be polished to move forwards, a limiting block 23 used for limiting the wood 50 to be polished is fixed on the upper surface of the left side of the push block 20, and racks 22 are respectively fixed on the left side and the right side of the push block 20. The base 10 is provided with a bar-shaped groove 11, the push block 20 is welded with a protrusion 21 which is connected in the bar-shaped groove 11 in a sliding way, and the push block 20 is connected on the base 10 in a sliding way through the protrusion 21 and the bar-shaped groove 11.

The polishing unit comprises a transmission shaft 30, a rotating shaft 43 and a polishing roller 40 with a cavity formed in the polishing unit, wherein the transmission shaft 30 and the rotating shaft 43 are both rotatably connected to the base 10, and the upper part of the rotating shaft 43 is positioned in the cavity of the polishing roller 40 and fixedly connected with the polishing roller 40. The transmission shaft 30 is welded with a first gear 31 meshed with the rack 22, the rotation shaft 43 is welded with a second gear 42 meshed with the first gear 31, when the push block 20 slides forwards, the rack 22 on the push block 20 drives the first gear 31 to rotate, and the first gear 31 drives the rotation shaft 43 and the polishing roller 40 on the rotation shaft 43 to rotate through the second gear 42. Referring to fig. 3, the surface of the grinding roller 40 is provided with a plurality of through holes 41 uniformly distributed along the circumferential direction of the grinding roller 40, a wedge-shaped grinding block 45 with one side positioned in the cavity is slidably connected to the through holes 41, the inclined surface of the grinding block 45 faces to one side of the movement direction of the wood 50 to be ground, and the grinding block 45 is used for grinding the cutting surface of the wood 50. A return spring 44 is connected between the grinding block 45 and the rotating shaft 43. The upper and lower surfaces of the polishing block 45 are respectively fixed with a clamping strip 451 pointing to the rotation center of the polishing roller 40, the polishing roller 40 is provided with a groove in sliding connection with the clamping strips 451, and the polishing block 45 can only slide along the fixed direction under the limiting action of the clamping strips 451 and the grooves.

The clamping unit comprises a frame 60, an adjustment roller 90, a clamping table 80 and a wedge 70 located above the clamping table 80, the wedge 70 in this embodiment being made of iron and having a certain weight. The lower surface of the wedge 70 is opposite to the upper surface of the clamping table 80, the inclined surface of the wedge 70 faces to one side of the movement direction of the wood 50 to be polished, the clamping table 80 is positioned on one side of the movement direction of the wood 50 to be polished, and the upper surface of the clamping table 80 and the upper surface of the push block 20 are positioned on the same horizontal plane. The middle part of one side of the push block 20 facing the clamping table 80 is provided with a clamping groove 24 which can be matched with the clamping table 80, and when the clamping groove 24 is clamped on the clamping table 80, the lower surface of the left side of the wood 50 can be positioned on the clamping table 80. The frame 60 is provided with sliding grooves 62 distributed along the height direction, the wedge 70 is fixedly provided with sliding blocks which are connected in the sliding grooves 62 in a sliding manner, and a pressure spring 61 is connected between the sliding blocks and the sliding grooves 62. Under the action of the compression spring 61, the wedge 70 is located at the lowermost part of the chute 62, and the lower surface of the wedge 70 is located between the upper and lower surfaces of the wood 50 to be polished. A pull wire 91 is connected between the wedge block 70 and the push block 20, the pull wire 91 is in contact with an adjusting roller 90, and the adjusting roller 90 is used for tensioning and adjusting the pull wire 91 and enabling the pull wire 91 to apply upward acting force to the wedge block 70. When the push block 20 approaches to one side of the clamping table 80, the pull wire 91 is not tensioned, and the pull wire cannot apply force to the wedge block; when the push block 20 is far from the side of the clamping table 80 (when the distance between the push block 20 and the clamping table 80 is at least one length of wood to be polished), the pull wire 91 is pulled tightly, and the pull wire 91 can apply an upward force to the wedge 70.

The specific implementation process is as follows: when it is necessary to polish the cut surface of the wood 50, the wood 50 is placed on the push block 20 so that one side surface of the wood 50 contacts the stopper 23 and the cut surface to be polished is opposite to the polishing roller 40. The hydraulic cylinder is operated, and the pushing block 20 is driven to move towards one side of the clamping table 80 by the hydraulic cylinder, so that the pushing block 20 drives the timber 50 to move forwards. In this process, the rack 22 on the push block 20 drives the first gear 31 to rotate, and the first gear 31 drives the rotating shaft 43 and the polishing roller 40 on the rotating shaft 43 to rotate through the second gear 42, and when the polishing roller 40 rotates, the inclined surface of the polishing block 45 near the side of the wood 50 faces the moving direction of the wood 50. In the process that the pushing block 20 pushes the wood 50 to enter the position between the polishing units on the left side and the right side, the wood 50 can be in contact with the inclined surface of the polishing block 45, the wood 50 applies acting force to the inclined surface of the polishing block 45, so that the polishing block 45 slides towards one side of the cavity along the groove, the polishing block 45 extrudes the reset spring 44, the polishing block 45 can be tightly attached to the surface of the cutting surface of the wood 50 under the acting force of the reset spring 44, and the polishing block 45 polishes the cutting surface of the wood 50 in the process that the polishing block 45 rotates along with the polishing roller 40. When the pushing block 20 drives the timber 50 to move to the wedge 70, the timber 50 applies a force to the wedge 70, so that the wedge 70 moves upwards along the sliding groove 62, and the compression spring 61 is compressed. When the clamping groove 24 on the push block 20 is engaged with the clamping table 80, the operation of the hydraulic cylinder is stopped, and at this time, the lower surface of the left side of the wood 50 is positioned on the clamping table 80, and the lower surface of the wedge 70 is pressed against the upper surface of the left side of the wood 50. The hydraulic cylinder is operated to drive the push block 20 to move in the opposite direction, and the stay wire 91 is gradually tensioned, so that the wood 50 does not move along with the push block 20, and the wood 50 is gradually separated from the push block 20 because the left side of the wood 50 is jointly fixed by the clamping table 80 and the wedge 70. When the push block 20 moves to the fixed position, the wood 50 is completely separated from the push block 20, the wedge 70 moves upwards and gradually away from the wood 50 under the action of the pulling force of the pull wire 91, and the wedge 70 falls off the clamping table 80 under the action of the gravity of the wood 50 due to the absence of the acting force exerted by the wedge 70, so that the wedge 70 is separated from the clamping table 80.

The foregoing is merely exemplary embodiments of the present application, and specific structures and features that are well known in the art are not described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present application, and these should also be considered as the scope of the present application, which does not affect the effect of the implementation of the present application and the utility of the patent. The protection scope of the present application is subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. A woodwork grinding device which is characterized in that: the wood pushing device comprises a base, a pushing block for pushing wood, a clamping unit and a plurality of polishing units positioned on the left side and the right side of the pushing block, wherein the pushing block is connected to the base in a sliding manner, and racks are respectively fixed on the left side and the right side of the pushing block; the polishing unit comprises a transmission shaft, a rotating shaft and a polishing roller fixed on the rotating shaft, and the transmission shaft and the rotating shaft are both rotationally connected to the base; a first gear meshed with the rack is fixed on the transmission shaft, and a second gear meshed with the first gear is fixed on the rotation shaft; the polishing roller is internally provided with a cavity, the surface of the polishing roller is provided with a plurality of through holes, wedge-shaped polishing blocks are connected to the through holes in a sliding manner, the inclined surfaces of the polishing blocks face to one side of the wood to be polished in the moving direction, and the polishing blocks are connected with reset springs; the sanding block is fixedly provided with a clamping strip, and the sanding roller is provided with a groove which is in sliding connection with the clamping strip; the clamping unit comprises a frame, a clamping table with the upper surface positioned on the same horizontal plane with the upper surface of the pushing block, and a wedge block positioned above the clamping table, wherein the inclined surface of the wedge block faces to one side of the movement direction of wood to be polished;

the pushing block is provided with a clamping groove which can be clamped with the clamping table; a sliding groove is formed in the frame, a sliding block which is connected in the sliding groove in a sliding way is fixed on the wedge block, and a pressure spring is connected between the sliding block and the sliding groove; a stay wire is connected between the wedge block and the push block, the stay wire can apply upward acting force to the wedge block, the push block comprises a driving unit for pushing the push block to reciprocate, the driving unit is a hydraulic cylinder, a piston rod of the hydraulic cylinder is fixedly connected with the push block,

the clamping unit further comprises an adjusting roller defining a force transmission direction of the stay wire.

2. A wood product grinding apparatus according to claim 1, wherein: the pushing block is provided with a limiting block for limiting the wood to be polished.

3. A wood product grinding apparatus according to claim 1, wherein: the base is provided with a strip-shaped groove, and the pushing block is fixedly provided with a protrusion which is in sliding connection with the strip-shaped groove.