CN221641228U - Wood fiber grinding device for plate processing - Google Patents

Abstract

The utility model discloses a wood fiber grinding device for plate processing, belonging to the technical field of plate processing equipment. It solves the defects of poor grinding effect and incomplete grinding in the prior art wood fiber production hot mill and other grinding devices. It mainly includes a shell, a feed port and a rotating hole are respectively provided at both ends of the shell, a static grinding disc is fixedly installed in the shell near the feed port, a center hole is provided in the static grinding disc, a driving shaft is rotatably installed in the rotating hole, a dynamic grinding disc matched with the static grinding disc is fixedly installed at one end of the driving shaft, an external dynamic grinding disc is fixedly installed on the circumferential surface of the dynamic grinding disc, and the working surface of the external dynamic grinding disc is conical, the shell includes a side plate and a shell detachably connected to the side plate, a conical surface is provided on the inner wall of the shell, and the external static grinding disc is fixedly installed on the outer side of the external dynamic grinding disc; a first discharge port is provided on the lower side of the side plate.

Description

Wood fiber grinding device for board processing

Technical Field

The utility model belongs to the technical field of plate processing equipment, and in particular relates to a wood fiber grinding device for plate processing.

Background Art

Fiberboard is a man-made board that uses wood fiber in its production. Wood fiber, as a raw material, needs to be ground using grinding devices such as a hot mill during production. For example, patent publication number CN112372782B is titled a protected medium-density fiberboard hot mill. When grinding the raw material, the above patent only grinds the raw material once through the relative rotation of the moving grinding disc and the static grinding disc. The raw material is discharged after passing between the moving grinding disc and the static grinding disc. The grinding process is prone to poor grinding effect and incomplete grinding, which affects the quality of the wood fiber.

Summary of the invention

The utility model aims to provide a wood fiber grinding device for plate processing, so as to overcome the defects of poor grinding effect and incomplete grinding in the prior art wood fiber production hot grinder and other grinding devices.

The utility model is implemented by adopting the following technical scheme: a wood fiber grinding device for plate processing, comprising an outer shell, a feed port and a rotating hole are respectively provided at two ends of the outer shell, a static grinding disc is fixedly installed in the outer shell on the side close to the feed port, the static grinding disc has a center hole, a driving shaft is rotatably installed in the rotating hole of the outer shell, a dynamic grinding disc matched with the static grinding disc is fixedly installed at one end of the driving shaft, an external dynamic grinding disc is fixedly installed on the circumferential surface of the dynamic grinding disc, and the working surface of the external dynamic grinding disc is conical, the outer shell comprises a side plate and a shell body detachably connected to the side plate, a conical conical surface is provided on the inner wall of the shell, and the external static grinding disc is fixedly installed on the outer side of the external dynamic grinding disc; a first discharge port is provided on the lower side of the side plate.

Furthermore, an annular mounting groove is provided on the conical surface, and the outer static grinding plate is installed in the annular mounting groove.

Furthermore, the shell has a plurality of mounting holes connected to the annular mounting groove spaced apart in the circumferential direction, the outer static grinding plate has a plurality of threaded holes spaced apart in the circumferential direction, and a first fastening bolt is installed between the mounting holes of the annular mounting groove and the threaded holes of the outer static grinding plate.

Furthermore, an annular mounting plate is provided on one side of the circumferential surface of the movable grinding disc, an annular fixing seat is provided on the inner side of the external movable grinding plate, a plurality of countersunk holes are provided on the inner side surface of the annular fixing seat at intervals along the circumferential direction, a plurality of threaded holes are provided on the inner side surface of the external movable grinding plate at intervals along the circumferential direction, a second fastening bolt is installed between the countersunk holes of the annular fixing seat and the threaded holes of the external movable grinding plate, a plurality of fixing holes are provided on the annular mounting plate at intervals along the circumferential direction, a plurality of threaded holes are provided on the side surface of the annular fixing seat relative to the annular fixing plate at intervals along the circumferential direction, and a third fastening bolt is installed between the fixing holes of the annular mounting plate and the threaded holes on the annular fixing seat.

Furthermore, a pad is arranged between the annular fixing seat and the outer movable grinding disc, and a fixing hole for the bolt to pass through is provided on the pad.

Furthermore, an annular positioning groove is provided on the inner side surface of the side plate, a positioning rod is fixedly installed on the side of the movable grinding disc opposite to the side plate, and one end of the positioning rod is inserted into the annular positioning groove and moves along the annular positioning groove.

Furthermore, the conical surface of the shell is provided with a second discharge port on the upper side of the outer movable grinding plate, and a baffle is installed at the second discharge port by means of bolts.

Furthermore, the feed port of the shell is equipped with a sleeve connected to the center hole of the static grinding disc.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model can perform secondary grinding on the material in the shell by fixing the outer moving grinding plate on the circumferential surface of the moving grinding disc and fixing the outer static grinding plate on the conical surface. Compared with the hot grinding machine in the prior art, the grinding effect is better and more thorough, and the quality of the produced wood fiber is better.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic structural diagram of the utility model.

In the figure: 1. shell; 2. side plate; 3. static grinding disc; 4. center hole; 5. drive shaft; 6. dynamic grinding disc; 7. external dynamic grinding plate; 8. conical surface; 9. external static grinding plate; 10. first discharge port; 11. annular mounting groove; 12. first fastening bolt; 13. annular mounting plate; 14. annular fixing seat; 15. second fastening bolt; 16. third fastening bolt; 17. pad; 18. annular positioning groove; 19. positioning rod; 20. baffle; 21. sleeve; 22. second discharge port.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

A wood fiber grinding device for plate processing comprises a shell, a feed port and a rotating hole are respectively provided at two ends of the shell, a static grinding disc 3 is fixedly installed in the shell near the feed port, the static grinding disc 3 has a center hole 4, a driving shaft 5 is rotatably installed in the rotating hole of the shell, a dynamic grinding disc 6 matched with the static grinding disc 3 is fixedly installed at one end of the driving shaft 5, an external dynamic grinding disc 7 is fixedly installed on the circumferential surface of the dynamic grinding disc 6, and the working surface of the external dynamic grinding disc 7 is conical, the shell comprises a side plate 2 and a shell 1 detachably connected to the side plate 2, a conical surface 8 is provided on the inner wall of the shell 1, and an external static grinding disc 9 is fixedly installed on the outer side of the external dynamic grinding disc 7; a first discharge port 10 is provided on the lower side of the side plate 2. A sleeve 21 connected to the center hole 4 of the static grinding disc 3 is installed at the feed port of the shell.

The sleeve 21 of the utility model can be connected to a screw feeder, and the material entering the sleeve 21 is transported to the central hole 4 of the static grinding disc 3, and a grinding gap is formed between the dynamic grinding disc 6 and the static grinding disc 3. One end of the driving shaft 5 is connected to a motor, and the motor drives the driving shaft 5 to rotate, and the driving shaft 5 drives the dynamic grinding disc 6 to rotate. The moving grinding disc 6 grinds the material during its rotation relative to the static grinding disc 3. Compared with the grinding structure of the hot mill in the prior art, the present invention has an outer moving grinding disc 7 fixedly installed on the circumferential surface of the moving grinding disc 6 and an outer static grinding disc 9 fixedly installed on the conical surface 8, so that the material in the shell 1 can be grinded for the second time. The material ground out from between the moving grinding disc 6 and the static grinding disc 3 slides between the outer moving grinding disc 7 and the outer static grinding disc 9. The moving grinding disc 6 drives the outer moving grinding disc 7 to rotate while rotating. The outer moving grinding disc 7 rotates relative to the outer static grinding disc 9 and grinds the material squeezed into it for the second time. The material after the second grinding slides from the conical surface 8 to the first discharge port 10, and then slides out of the shell 1. The shell 1 and the side plate 2 of the present invention are detachably connected by bolts. The moving grinding disc 6 of the present invention is fixedly installed with bolts on one side relative to the static grinding disc 3, and the static grinding disc 3 is fixedly installed with bolts on one side relative to the moving grinding disc 6. The rotating hole is opened on the side plate 2 at one end of the shell 1 where the feed port is opened.

The conical surface 8 is provided with an annular mounting groove 11 , and the outer static grinding plate 9 is mounted in the annular mounting groove 11 .

The utility model can facilitate the installation of the external static grinding plate 9 by providing the annular installation groove 11. The external static grinding plate 9 can be divided into multiple sections at equal intervals. During installation, it is only necessary to install multiple arc segments into the installation grooves respectively, and multiple arc segments are spliced into the external static grinding plate 9.

The shell 1 is provided with a plurality of mounting holes connected to the annular mounting groove 11 at intervals along the circumferential direction, the outer static grinding plate 9 is provided with a plurality of threaded holes at intervals along the circumferential direction, and a first fastening bolt 12 is installed between the mounting holes of the annular mounting groove 11 and the threaded holes of the outer static grinding plate 9.

The utility model realizes the relative fixation between the outer static grinding plate 9 and the housing 1 through the first fastening bolt 12, and is convenient for assembly and disassembly.

An annular mounting plate 13 is provided on one side of the circumferential surface of the movable grinding disc 6, and an annular fixing seat 14 is provided on the inner side of the external movable grinding plate 7. The inner side surface of the annular fixing seat 14 is provided with a plurality of countersunk holes at intervals along the circumferential direction, and the inner side surface of the external movable grinding plate 7 is provided with a plurality of threaded holes at intervals along the circumferential direction. A second fastening bolt 15 is installed between the countersunk holes of the annular fixing seat 14 and the threaded holes of the external movable grinding plate 7. The annular mounting plate 13 is provided with a plurality of fixing holes at intervals along the circumferential direction, and the annular fixing seat 14 is provided with a plurality of threaded holes at intervals along the circumferential direction on the side surface relative to the annular fixing plate, and a third fastening bolt 16 is installed between the fixing holes of the annular mounting plate 13 and the threaded holes on the annular fixing seat 14.

The utility model realizes relative fixation between the annular fixing seat 14 and the external movable grinding plate 7 by the second fastening bolt 15, and realizes relative fixation between the annular fixing seat 14 and the annular mounting plate 13 by the third fastening bolt 16, and is convenient for disassembly and assembly. The external movable grinding plate 7 can also be divided into multiple sections at equal intervals. During installation, it is only necessary to install multiple arc segments on the annular fixing seat 14 respectively, and multiple arc segments are spliced into the external movable grinding plate 7.

A backing plate 17 is arranged between the annular fixing seat 14 and the outer movable grinding disc 6 , and a fixing hole for the bolt to pass through is provided on the backing plate 17 .

The utility model provides a backing plate 17 , and the gap between the outer movable grinding plate 7 and the outer static grinding plate 9 can be adjusted by replacing the backing plate 17 with different thicknesses.

The conical surface 8 is connected to the first discharge port 10 .

The utility model can make discharging more convenient by connecting the conical surface 8 to the first discharging port 10 .

An annular positioning groove 18 is provided on the inner side surface of the side plate 2 , and a positioning rod 19 is fixedly installed on the side of the movable grinding disc 6 opposite to the side plate 2 , and one end of the positioning rod 19 is inserted into the annular positioning groove 18 and moves along the annular positioning groove 18 .

The utility model provides an annular positioning groove 18 and a positioning rod 19, one end of the positioning rod 19 is inserted into the annular positioning groove 18, the positioning rod 19 can be configured as a rod or a plate, and the positioning rod 19 can radially position the movable grinding disc 6 to avoid radial displacement of the movable grinding disc 6 relative to the housing.

The conical surface 8 of the housing 1 is provided with a second discharge port 22 on the upper side of the outer movable grinding plate 7, and the second discharge port 22 is provided with a baffle 20 by means of bolts.

The utility model provides the second discharge port 22 , so that the material in the shell 1 can be easily cleaned after the production is completed. During normal production, the second discharge port 22 is blocked by the baffle 20 to prevent the material from leaking out of the second discharge port 22 .

Claims (8)

1. A wood fiber grinding device for plate processing, comprising a shell, wherein a feed inlet and a rotating hole are respectively provided at two ends of the shell, a static grinding disc (3) is fixedly installed in the shell on a side close to the feed inlet, the static grinding disc (3) is provided with a center hole (4), a driving shaft (5) is rotatably installed in the rotating hole of the shell, and a dynamic grinding disc (6) matched with the static grinding disc (3) is fixedly installed at one end of the driving shaft (5), characterized in that an external dynamic grinding disc (7) is fixedly installed on the circumferential surface of the dynamic grinding disc (6), and the working surface of the external dynamic grinding disc (7) is conical, the shell comprises a side plate (2) and a shell (1) detachably connected to the side plate (2), a conical surface (8) is provided on the inner wall of the shell (1), and an external static grinding disc (9) is fixedly installed on the outer side of the external dynamic grinding disc (7); and a first discharge port (10) is provided on the lower side of the side plate (2). 2. The wood fiber grinding device for plate processing according to claim 1, characterized in that an annular mounting groove (11) is provided on the conical surface (8), and the outer static grinding plate (9) is installed in the annular mounting groove (11). 3. The wood fiber grinding device for plate processing according to claim 2 is characterized in that: the shell (1) is provided with a plurality of mounting holes connected to the annular mounting groove (11) at intervals along the circumferential direction, the outer static grinding plate (9) is provided with a plurality of threaded holes at intervals along the circumferential direction, and a first fastening bolt (12) is installed between the mounting hole of the annular mounting groove (11) and the threaded hole of the outer static grinding plate (9). 4. The wood fiber grinding device for plate processing according to claim 1 is characterized in that: an annular mounting plate (13) is provided on one side of the circumferential surface of the movable grinding disc (6), an annular fixing seat (14) is provided on the inner side of the external movable grinding plate (7), a plurality of countersunk holes are provided on the inner side surface of the annular fixing seat (14) at intervals along the circumferential direction, a plurality of threaded holes are provided on the inner side surface of the external movable grinding plate (7) at intervals along the circumferential direction, a second fastening bolt (15) is installed between the countersunk holes of the annular fixing seat (14) and the threaded holes of the external movable grinding plate (7), a plurality of fixing holes are provided on the annular mounting plate (13) at intervals along the circumferential direction, a plurality of threaded holes are provided on the side surface of the annular fixing seat (14) relative to the annular fixing plate at intervals along the circumferential direction, and a third fastening bolt (16) is installed between the fixing holes of the annular mounting plate (13) and the threaded holes on the annular fixing seat (14). 5. The wood fiber grinding device for plate processing according to claim 4, characterized in that a pad (17) is arranged between the annular fixing seat (14) and the outer movable grinding disc (6), and a fixing hole for the bolt to pass through is provided on the pad (17). 6. The wood fiber grinding device for plate processing according to claim 1 is characterized in that: an annular positioning groove (18) is provided on the inner side surface of the side plate (2), a positioning rod (19) is fixedly installed on the side of the movable grinding disc (6) opposite to the side plate (2), and one end of the positioning rod (19) is inserted into the annular positioning groove (18) and moves along the annular positioning groove (18). 7. The wood fiber grinding device for plate processing according to claim 1 is characterized in that: the conical surface (8) of the shell (1) opens a second discharge port (22) on the upper side of the outer movable grinding plate (7), and the second discharge port (22) is installed with a baffle (20) by bolts. 8. The wood fiber grinding device for plate processing according to claim 1, characterized in that: the feed port of the housing is provided with a sleeve (21) connected to the center hole (4) of the static grinding disc (3).