阅读说明：本技术 一种mdf生产用高性能磨片 (High-performance grinding disc for MDF production ) 是由 刘剑英 郭亚辉 李东红 于 2021-09-07 设计创作，主要内容包括：本发明公开了一种MDF生产用高性能磨片,涉及热磨领域,包括作为磨盘的盘体、作为限位轴而固定在所述盘体内的支柱、转动套接在所述支柱外部的套筒、固定连接在所述套筒外部并遮盖在盘体上方的盖板；所述套筒的底部固定有多个磨杆,所述盖板、所述套筒内设置有相连通的通道；本发明的有益效果为：本发明中,(1)设置了主道支道等结构,实现了负压出料,能有效提升出料的效率,提升出料质量；(2)设置了盖板和套筒之间的连通通道结构,利用凹槽和槽腔的连通实现送气,调节热磨温度和热磨盘体内的压强差,使物料的出料更加便于控制；本发明通过负压控气实现对MDF纤维板原材料的高效热磨。(The invention discloses a high-performance grinding disc for MDF production, which relates to the field of hot grinding and comprises a disc body serving as a grinding disc, a supporting column serving as a limiting shaft and fixed in the disc body, a sleeve rotatably sleeved outside the supporting column, and a cover plate fixedly connected to the outside of the sleeve and covering the upper part of the disc body; a plurality of grinding rods are fixed at the bottom of the sleeve, and communicated channels are arranged in the cover plate and the sleeve; the invention has the beneficial effects that: in the invention, (1) the structures such as the main branch channel are arranged, so that negative pressure discharging is realized, the discharging efficiency can be effectively improved, and the discharging quality is improved; (2) a communicating channel structure between the cover plate and the sleeve is arranged, air supply is realized by the communication between the groove and the groove cavity, and the temperature of the hot grinding and the pressure difference in the hot grinding disc body are adjusted, so that the discharge of materials is more convenient to control; the invention realizes the high-efficiency hot grinding of the MDF fiberboard raw material by negative pressure gas control.)

1. The high-performance grinding disc for MDF production is characterized by comprising a disc body (1) serving as a grinding disc, a supporting column (2) serving as a limiting shaft and fixed in the disc body (1), a sleeve (3) rotatably sleeved outside the supporting column (2), and a cover plate (4) fixedly connected to the outside of the sleeve (3) and covering the disc body (1); a plurality of grinding rods (43) are fixed at the bottom of the sleeve (3), and communicated channels are arranged in the cover plate (4) and the sleeve (3).

2. The high-performance grinding plate for MDF production according to claim 1, wherein a main channel (42) for guiding material is arranged in the cover plate (4), a plurality of branch channels (421) communicated with the main channel (42) are arranged at the bottom of the cover plate (4), and the grinding rods (43) are fixed between the adjacent branch channels (421).

3. A high performance abrasive disc for MDF production according to claim 1, characterized in that the pillars (2) are provided with a plurality of grooves (21) in an annular array on the outer wall, the sleeve (3) is provided with grooves (32) adapted to the grooves (21), and the sleeve (3) is provided with barrel cavities (31) communicating with the grooves (32).

4. A high-performance grinding chip for MDF production according to claim 3, characterized in that the bottom end face of the sleeve (3) is located above the bottom of the groove (21).

5. A high-performance grinding plate for MDF production according to claim 3, characterized in that the wall of the barrel chamber (31) is provided with through holes (33) communicating with the groove chambers (32).

6. A high performance abrasive disc for MDF production according to claim 1, characterized in that the bottom of the pillar (2) is provided with a base (22) in an arc transition with the bottom surface of the disc body (1).

7. A high performance abrasive disc for MDF production according to claim 1, characterized in that the bottom of the cover plate (4) is provided with a cartridge (41) that engages with the disc (1).

8. A high-performance grinding chip for MDF production according to claim 1, characterized in that said disc body (1) is of an open-topped box-like structure.

Technical Field

The invention relates to the field of hot grinding, in particular to a high-performance grinding plate for MDF production.

Background

Medium Density Fiberboard (abbreviated as MDF for short) having a full english name. The medium-density fibre board is made up of wood or plant fibres through mechanical separation and chemical treatment, addition of adhesive and water-proofing agent, and high-temp and-pressure shaping. The medium density fiberboard has a more uniform structure than natural wood, avoids the problems of decay, worm damage and the like, and has small expansibility and convenient processing. Because the surface of the medium-density fiber board is flat, various decorative surfaces are easy to stick, and the finished furniture is more beautiful. The board is superior to shaving board in bending strength and impact strength.

After the raw materials are selected, the raw materials are cooked, subjected to fiber separation by a hot grinding method, and subjected to waterproof, drying and hot pressing to form the fiberboard, so that the fiberboard is obtained. In the hot grinding process, selected fiber materials are ground, mainly by means of mutual friction of the fiber materials among grinding discs instead of by means of the action of the grinding discs. But the material and structure of the grinding disc can also affect the friction degree and heating effect of the fiber materials, and factors such as the roughness, the inclined structure, the heat resistance and the like of the grinding disc can affect the hot grinding effect of the fiber board.

There is therefore a continuing need for improvements in the refiner plates and the like that participate in the hot refining in order to obtain better hot-refined fiber boards.

Disclosure of Invention

The invention aims to solve the problem that in the prior art, the thermal grinding effect is poor due to the fact that the structural material of a grinding plate of an MDF fiberboard is not appropriate, and provides a high-performance grinding plate for MDF production.

In order to achieve the purpose, the invention adopts the following technical scheme:

a high-performance abrasive disc for MDF production comprises a disc body serving as an abrasive disc, a supporting column serving as a limiting shaft and fixed in the disc body, a sleeve rotatably sleeved outside the supporting column, and a cover plate fixedly connected outside the sleeve and covering the disc body; the bottom of the sleeve is fixed with a plurality of grinding rods, and the cover plate and the sleeve are internally provided with communicated channels.

Preferably, a main channel for guiding materials is arranged in the cover plate, a plurality of branch channels communicated with the main channel are arranged at the bottom of the cover plate, and the grinding rod is fixed between the adjacent branch channels.

Preferably, the outer wall of the strut is provided with a plurality of grooves in an annular array, the sleeve is internally provided with a groove cavity matched with the grooves, and the sleeve is internally provided with a barrel cavity communicated with the groove cavity.

Preferably, the bottom end face of the sleeve is located above the groove bottom of the groove.

Preferably, a through hole communicated with the groove cavity is formed in the cavity wall of the cylinder cavity.

Preferably, the bottom of the support column is provided with a base in arc transition with the bottom surface of the tray body.

Preferably, the bottom of the cover plate is provided with a clamping cylinder clamped with the disc body.

Preferably, the tray body is of a box-packed structure with an open top.

The invention has the beneficial effects that: in the invention, (1) the structures such as the main branch channel are arranged, so that negative pressure discharging is realized, the discharging efficiency can be effectively improved, and the discharging quality is improved; (2) a communicating channel structure between the cover plate and the sleeve is arranged, air supply is realized by the communication between the groove and the groove cavity, and the temperature of the hot grinding and the pressure difference in the hot grinding disc body are adjusted, so that the discharge of materials is more convenient to control; the invention realizes the high-efficiency hot grinding of the MDF fiberboard raw material by negative pressure gas control.

Drawings

FIG. 1 is a block diagram of a refiner plate according to the invention;

FIG. 2 is a front view of a refiner plate according to the present invention;

fig. 3 is a partially enlarged view of a portion a in fig. 2.

Reference numbers in the figures: 1 tray body, 2 pillars, 21 grooves, 22 bases, 3 sleeves, 31 barrel cavities, 32 groove cavities, 33 through holes, 4 cover plates, 41 clamping barrels, 42 main channels, 421 branch channels, 43 grinding rods and 44 positioning plates.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to specific embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, the grinding disc of the invention comprises a disc body 1 as a grinding disc, a strut 2 as a limiting shaft fixed in the disc body 1, a sleeve 3 rotatably sleeved outside the strut 2, and a cover plate 4 fixedly connected outside the sleeve 3 and covering the disc body 1; a plurality of grinding rods 43 are fixed at the bottom of the sleeve 3, and communicated channels are arranged in the cover plate 4 and the sleeve 3.

The grinding disc structure is arranged, so that air supply and negative pressure adsorption are realized by utilizing a communication channel structure between the cover plate 4 and the sleeve 3 while hot grinding is performed; on the basis, the grinding rod 43 at the bottom of the cover plate 4 and the materials in the disc body 1 are ground in a friction mode, hot air can be supplied through the communication channel, and the temperature of the thermal grinding in the disc body 1 is controlled; secondly, set up like this and can discharge sleeve 3 with the tiny particle material who polishes when polishing, make the requirement of discharging more compound.

Referring to fig. 2 and 3, in particular, the channel structure is as follows: a main channel 42 for guiding materials is arranged in the cover plate 4, a plurality of branch channels 421 communicated with the main channel 42 are arranged at the bottom of the cover plate 4, and the grinding rods 43 are fixed between the adjacent branch channels 421. When the grinding disc works, the grinding rod 43 grinds materials, and under the condition of hot grinding, the ground small-particle materials enter the main channel 42 through the branch channel 421 and then enter the groove cavity 32 and the barrel cavity 31, namely are discharged from the top of the sleeve 3; the discharge is the negative pressure generated by the hot grinding by using the channel, namely the pressure inside the disc body 1 is higher, the pressure in the branch channel 421 and the main channel 42 is lower, and the hot air is introduced, so that the materials tend to be discharged into the branch channel 421 and further discharged.

The outer wall of the strut 2 is provided with a plurality of grooves 21 in an annular array, a groove cavity 32 matched with the grooves 21 is formed in the sleeve 3, and a sleeve cavity 31 communicated with the groove cavity 32 is formed in the sleeve 3. The communication channel has the advantages that hot gas can be fed into the disc body 1 through the channel, so that the temperature of the materials in the disc body 1 can be controlled conveniently; meanwhile, the communicating structure can also control air supply so as to control the pressure intensity in the disc body 1.

The bottom end surface of the sleeve 3 is located above the groove bottom of the groove 21. This is arranged to ensure that the air supply passage is in communication with the interior of the tray body 1.

The wall of the cylinder cavity 31 is provided with a through hole 33 communicated with the groove cavity 32. This is arranged to complement the infrastructure of the functional structure.

The bottom of the pillar 2 is provided with a base 22 which is in arc transition with the bottom surface of the tray body 1. The smoothness of the friction of the material is improved.

A clamping cylinder 41 clamped with the disc body 1 is arranged at the bottom of the cover plate 4.

The tray body 1 is of a box-packed structure with an opening at the top.

The working principle is as follows: in the polishing process, the disc body 1 is heated, the cover plate 4 is rotated, the grinding rod 43 and materials in the disc body 1 are subjected to friction polishing, the polished materials are output through the top tube opening of the sleeve 3, when the materials are not discharged, the air is supplied to the groove 21 through the top tube opening of the sleeve 3, and the materials are further conveyed out through the increase of negative pressure difference.

Exemplary embodiments of the proposed solution of the present disclosure have been described in detail above with reference to preferred embodiments, however, it will be understood by those skilled in the art that many variations and modifications may be made to the specific embodiments described above, and that many combinations of the various technical features and structures presented in the present disclosure may be made without departing from the concept of the present disclosure, without departing from the scope of the present disclosure, which is defined by the appended claims.