High-sealing rotary wood chip blanking device and using method

Abstract

The high-sealing rotary wood chip discharger comprises a discharging box, an inner cavity of the discharging box is of a cylindrical structure, a rotating shaft is arranged on the side wall of the inner cavity of the discharging box in a penetrating mode along the axis, a feeding port and a discharging port are formed in the positions, above and below the rotating shaft, of the discharging box, and one end of the rotating shaft is connected with a driving motor; a plurality of main keel plates are distributed and fixedly connected to the outer wall of the rotating shaft in the circumferential direction, a material passing cavity is formed between every two adjacent main keel plates, auxiliary keel plates are installed on the side walls of the main keel plates in the axial direction and detachably provided with scraping pieces, the scraping pieces extend in the axial direction, and the length of the scraping pieces is larger than the axial length of the feeding opening. The end, extending in the radial direction, of each scraper is attached to the inner wall of the discharging box. The wood chip discharging device has the effect of stably outputting wood chips after sealing and buffering.

Description

Technical Field

[0001] The present invention belongs to the field of wood processing, and relates to a high-sealing rotary sawdust feeder and a using method thereof. Background Art

[0002] Sawdust refers to the sawdust and planer shavings left during wood processing. It is mainly used as fuel and lightweight bone filler, or re-compounded into artificial boards such as medium density fiberboard; it can also be used as a raw material for papermaking.

[0003] In a wood processing factory, after wood is crushed by a crusher, powdery sawdust particles are obtained. An induced draft fan uses air flow to transport the above-mentioned powdery sawdust to a scraping machine or for a collection process. During the process of blowing sawdust by the induced draft fan, a large amount of sawdust will spread widely under impact, increasing the difficulty of collection. Even the scattered sawdust can cause the machine to jam. Therefore, a device is needed to smoothly output the scattered sawdust after sealed buffering for the next processing procedure.

[0004] Existing feeding devices usually only use some structures or materials with buffering effects for the shape of the feeding port of the device or the material of the device, and cannot effectively output the scattered sawdust smoothly. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a feeder that can smoothly output sawdust after sealed buffering.

[0006] The present invention is realized through the following technical solutions. A high-sealing rotary sawdust feeder is provided, which includes a feeding box. The inner cavity of the feeding box is of a cylindrical structure. A rotating shaft penetrates through the side wall of the inner cavity of the feeding box along the axis. The feeding box is provided with a feeding port and a discharging port above and below the rotating shaft. One end of the rotating shaft is connected to a driving motor. A plurality of main keel plates are fixedly connected to the outer wall of the rotating shaft along the circumferential direction. A material passing cavity is formed between adjacent main keel plates. Auxiliary keel plates are installed on the side walls of the main keel plates along the axial direction. The auxiliary keel plates are detachably installed with scraping blades. The scraping blades extend along the axial direction and the length is greater than the axial length of the feeding port. One end of the scraping blade extending along the radial direction is in contact with the inner wall of the feeding box.

[0007] In this solution, a plurality of main keel plates are circumferentially arranged on the outer wall of the rotating shaft. Through the material passing cavity formed between the main keel plates, a large amount of falling sawdust can be separated and buffered. By installing auxiliary keel plates on the main keel plates, and the auxiliary keel plates are detachably fixedly connected with scraping blades, it is convenient to adjust and replace the scraping blades. The longitudinal length of the scraping blade is greater than the longitudinal length of the feeding port, and the top of the scraping blade is in contact with and sealed to the inner wall of the feeding box, so that the material passing cavity forms a closed space to prevent sawdust from flying and falling smoothly.

[0008] As an optimization, 6 main keel plates are evenly distributed along the circumferential direction of the rotating shaft. In this optimization scheme, if the number of main keel plates is too small, the space of the material passing cavity formed is too large, and the smooth buffering transition of scattered wood chips cannot be achieved. If the number of main keel plates is too large, very few wood chips fall into the material passing cavity, which will reduce the operation efficiency.

[0009] As an optimization, a groove is formed at one end of the secondary keel plate far away from the rotating shaft, and the scraping blade is installed in the groove and fixedly connected to the secondary keel plate through bolts. In this optimization scheme, the scraping blade is detachably fixed to the secondary keel plate through bolts. The scraping blade is located in the groove, and it has a protective effect on the scraping blade during rotation.

[0010] As an optimization, a number of vertical long holes are formed in the side wall of the secondary keel plate along the axial direction. The main keel plate is connected to the secondary keel plate through bolts passing through the long holes, and the secondary keel plate is slidably connected to the bolts through the long holes. In this optimization scheme, the secondary keel plate can slide radially through the long holes, which is convenient for adjustment.

[0011] As an optimization, a stop block is fixedly connected to the side wall of the main keel plate. The stop block is located between the secondary keel plate and the rotating shaft, and the stop block is connected to the secondary keel plate through a spring. In this optimization scheme, by setting a spring between the secondary keel plate and the stop block, the secondary keel plate always slides radially, so that the scraping blade always keeps a sealed state with the inner wall of the feeding box.

[0012] As an optimization, a number of inner holes are formed in the end of the secondary keel plate close to the rotating shaft along the axial direction inward. The spring is adapted to the inner holes and installed in the inner holes. The length of the spring is greater than the length of the inner holes, and one end of the spring is fixedly connected to the stop block. In this optimization scheme, by placing the spring in the inner holes of the secondary keel plate, the stability of the spring is maintained during rotation.

[0013] As an optimization, a bracket is fixedly connected to the bottom of the feeding box, and the driving motor is fixedly connected to the bracket. In this optimization scheme, by setting the bracket, the device is stably placed.

[0014] The present invention also provides a use method of a high-sealing rotating wood chip feeder: (a) During operation, turn on the driving motor, drive the rotating shaft to rotate through the driving motor, and the main keel plates, secondary keel plates and scraping blades fixedly connected to the rotating shaft rotate with the shaft. The falling wood chips fall into the material passing cavity through the feeding port of the feeding box and fall out of the discharging port of the feeding box for collection through rotation.

[0015] (b) During the working process, the top of the scraping blade fits with the inner wall of the feeding box. Through the elastic force provided by the spring, the secondary keel plate slides radially, and the scraping blade fixedly connected to the secondary keel plate always keeps a fitting state with the inner wall of the feeding box.

[0016] The beneficial effects of the present invention are as follows: Through the material passing cavity formed between the main keel plates, a large amount of falling wood chips can be separated and buffered during rotation. One end of the scraping blade extending radially fits against the inner wall of the blanking box, providing sealing performance, so that the material passing cavity and the blanking box form a closed space, enabling the wood chips to fall smoothly. The spring connected to the auxiliary keel plate provides radial elastic force, keeping the scraping blade always in contact with the inner wall of the blanking box to maintain high sealing performance, thereby achieving the effect of sealing and buffering the scattered wood chips and smoothly outputting them. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic diagram of the internal structure of the present invention in the forward direction; Figure 2 is a schematic diagram of the internal structure of the present invention in the left direction; Figure 3 is Figure 1 an enlarged internal view of part A of As shown in the figure: 1, blanking box; 2, rotating shaft; 3, driving motor; 4, main keel plate; 5, auxiliary keel plate; 6, scraping blade; 7, spring; 8, stop block; 9, bracket. DETAILED DESCRIPTION OF THE INVENTION

[0018] To clearly illustrate the technical features of this solution, the following describes this solution through specific embodiments.

[0019] As Figures 1 to 3 shown, a high-sealing rotary wood chip blanking device of the present invention includes a blanking box 1. The inner cavity of the blanking box is a cylindrical structure. A rotating shaft 2 is axially penetrated through the side wall of the inner cavity of the blanking box. The blanking box is provided with a feed port and a discharge port above and below the rotating shaft. One end of the rotating shaft is connected to a driving motor 3. A plurality of main keel plates 4 are circumferentially distributed and fixedly connected to the outer wall of the rotating shaft. A material passing cavity is formed between adjacent main keel plates. Specifically, the blanking box 1 is a horizontally placed cylindrical structure. The rotating shaft 2 is installed at the axial centers of both ends of the blanking box through bearing seats. One end of the rotating shaft is fixedly connected to the output end of the driving motor 3. Six main keel plates 4 are welded to the outer wall of the rotating shaft along the circumferential direction. The main keel plates extend longitudinally to both ends of the inner wall of the blanking box, forming a separation and buffer area for the wood chips through the material passing cavity.

[0020] The side wall of the main keel plate is axially installed with a secondary keel plate 5. The secondary keel plate is detachably installed with a scraping blade 6. The scraping blade extends axially and its length is greater than the axial length of the feed port. One end of the scraping blade extending radially fits against the inner wall of the blanking box. Specifically, two vertical long holes are axially formed in the side wall of the secondary keel plate. Bolts passing through the long holes connect the main keel plate and the secondary keel plate. The secondary keel plate is slidably connected to the main keel plate through the long holes and can slide radially through the long holes. A stop block 8 is fixedly connected to the side wall of the main keel plate. The stop block is located between the secondary keel plate and the rotating shaft. Two inner holes are axially formed inward at one end of the secondary keel plate close to the rotating shaft. Springs 7 are fitted and passed through the inner holes. The length of the springs is greater than the length of the inner holes. One end of the springs is fixedly welded to the stop block. A groove is formed inward at the end of the secondary keel plate far from the rotating shaft. The scraping blade 6 is installed in the groove and is fixedly connected to the secondary keel plate through bolts. The springs provide a radial elastic force to the secondary keel plate, so that the scraping blade always fits against the inner wall of the blanking box to maintain high tightness, so that the separated flying wood chips can fall and output smoothly in a closed space.

[0021] A support 9 is welded to the bottom of the blanking box. The driving motor is also bolted to the support.

[0022] The usage method of a high-tightness rotating wood chip blanking device in this embodiment is specifically as follows: During operation, the driving motor 3 is turned on. The rotating shaft 2 is driven to rotate by the driving motor. The main keel plate 4, the secondary keel plate 5 and the scraping blade 6 fixedly connected to the rotating shaft rotate with the shaft. The falling wood chips fall into the material passing cavity through the feed port of the blanking box 1 and fall out and are collected through the blanking port of the blanking box by rotation. During the operation process, one end of the scraping blade 6 extending radially fits against the inner wall of the blanking box. The springs 7 provide a radial elastic force, so that the secondary keel plate slides radially, and the scraping blade fixedly connected to the secondary keel plate always keeps in a fitting state with the inner wall of the blanking box 1.

[0023] Of course, the above description is not limited to the above examples. The technical features not described in the present invention can be realized by or adopt the prior art, and will not be elaborated here; the above embodiments and drawings are only used to illustrate the technical solutions of the present invention and are not a limitation to the present invention. The present invention has been described in detail with reference to the optimized embodiments. Those of ordinary skill in the art should understand that any changes, modifications, additions or substitutions made by those of ordinary skill in the art within the scope of the essence of the present invention do not depart from the purpose of the present invention and should also fall within the scope of the protection of the claims of the present invention.

Claims

1. A high-sealing rotary wood chip feeder, comprising a feeding box (1), characterized in that: The inner cavity of the blanking box is of a cylindrical structure. A rotating shaft (2) is axially penetrated through the side wall of the inner cavity of the blanking box. The blanking box is provided with a feed inlet and a discharge outlet above and below the rotating shaft. One end of the rotating shaft is connected with a driving motor (3). A plurality of main keel plates (4) are circumferentially and fixedly connected to the outer wall of the rotating shaft. A material passing cavity is formed between adjacent main keel plates. A secondary keel plate (5) is axially installed on the side wall of the main keel plate. A scraping blade (6) is detachably installed on the secondary keel plate. The scraping blade extends axially and its length is greater than the axial length of the feed inlet. One end of the scraping blade extending radially is in contact with the inner wall of the blanking box.

2. The high-sealing rotary sawdust feeder according to claim 1, wherein: Six main keel plates (4) are evenly distributed along the circumference of the rotating shaft (2).

3. The high-sealing rotary sawdust feeder according to claim 1, characterized in that: A groove is formed inward at one end of the secondary keel plate (5) away from the rotating shaft. The scraping blade (6) is installed in the groove and fixedly connected to the secondary keel plate through bolts.

4. A highly sealed rotary sawdust feeder according to claim 1, characterized in that: A plurality of vertical long holes are axially formed in the side wall of the secondary keel plate. The main keel plate is connected to the secondary keel plate through bolts passing through the long holes. The secondary keel plate is slidably connected to the bolts through the long holes.

5. The high-sealing rotary sawdust feeder according to claim 4, characterized in that: A stop block (8) is fixedly connected to the side wall of the main keel plate. The stop block is located between the secondary keel plate and the rotating shaft. The stop block is connected to the secondary keel plate through a spring (7).

6. The high-sealing rotary sawdust feeder according to claim 5, characterized in that: A plurality of inner holes are axially formed inward at one end of the secondary keel plate close to the rotating shaft. The spring is adapted to the inner holes and installed in the inner holes. The length of the spring is greater than the length of the inner holes. One end of the spring is fixedly connected to the stop block.

7. A highly sealed rotary sawdust feeder according to claim 1, characterized in that: A bracket (9) is fixedly connected to the bottom of the blanking box. The driving motor is fixedly connected to the bracket.

8. A method for using a highly sealed rotary sawdust feeder according to any one of claims 1 to 7, characterized in that It includes the following steps: (a) During operation, the driving motor (3) is turned on. The rotating shaft (2) is driven to rotate by the driving motor. The main keel plates, secondary keel plates and scraping blades fixedly connected to the rotating shaft rotate with the shaft. The falling wood chips fall into the material passing cavity through the feed inlet of the blanking box and are collected by falling out from the discharge outlet of the blanking box through rotation. (b) During the working process, the top of the scraping blade is in contact with the inner wall of the blanking box. Through the elastic force provided by the spring, the secondary keel plate slides radially, so that the scraping blade fixedly connected to the secondary keel plate always remains in contact with the inner wall of the blanking box.

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