A wood pulverizing device

By setting up an air-blocking mechanism and a stacked baffle structure at the feed hood of the wood powder mill, the combination of wind power and mechanical structure is used to prevent wood blocks from flying out, thus solving the safety hazards during the crushing of wood powder and achieving a safe and efficient feeding process.

CN224573858UActive Publication Date: 2026-07-31BAOJI WANGSEN NEW MATERIALS & SHEETS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
BAOJI WANGSEN NEW MATERIALS & SHEETS CO LTD
Filing Date
2025-07-02
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing vertical wood powder machines often cause wood blocks to fly upwards during the pulverization process, posing a safety hazard to operators.

Method used

An air-blocking mechanism is installed at the feed hood of the wood powder machine. A strong wind is blown in by a fan to form an air barrier. Combined with movable stacked baffles and mechanical structures, the wood blocks are prevented from flying out. At the same time, the wood is guided smoothly into the crushing device by an inclined guide seat.

Benefits of technology

It effectively prevents wood blocks from flying out of the feed inlet, improves the safety of operators, reduces the safety hazards caused by flying debris, and ensures smooth feeding.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a wood crushing device, including a wood powder mill body and a feeding hood. The feeding hood is bolted to the top of the wood powder mill body. It also includes a wind-blocking mechanism, which includes an inclined liner plate, a fan, a toothed frame, and a stacked baffle. By setting the wind-blocking mechanism at the feeding hood above the wood powder mill body, the inclined liner plate of the wind-blocking mechanism, together with the fan, blows strong wind into the feeding hood, forming a wind barrier that effectively blocks wood blocks flying upwards during wood crushing. At the same time, a stacked baffle is movably installed on the toothed frame at the end of the inclined liner plate. When wood is fed, the secondary section of the stacked baffle can be flipped backward to allow passage. When wood blocks fly out, the secondary section can block the impact. The main section can also be rotated at the bolt shaft to adjust the angle, enhancing the interception effect. The wind force and mechanical structure work together to effectively prevent wood blocks from flying out of the feed inlet.
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Description

Technical Field

[0001] This utility model relates to the field of wood crushing technology, and in particular to a wood crushing device. Background Technology

[0002] Wood products are products made from wood as raw material and processed into various forms. Currently, most household or office wood products are composed of wood planks. During furniture manufacturing, wood waste and scraps need to be crushed to produce wood chips for use in furniture making. One type of vertical wood powder mill uses a motor-driven rotor to rotate at high speed, causing hammer blades to impact the wood, branches, and other materials entering the crushing chamber. Simultaneously, the shearing and impact forces between the material and the hammer blades, the material and the inner wall of the machine casing, and between the material and the hammer blades, combined with the grinding effect, gradually crush the material to the required fineness. The crushed material is then discharged through an exhaust system, achieving highly efficient crushing.

[0003] In existing vertical wood powder mills, wood is fed into the inlet via a conveyor system. As the wood enters the mill, some broken pieces tend to fly upwards. Although some mills have hanging rubber baffles to prevent this, these simple baffles are often pushed inwards during feeding, causing debris to fly out and fall onto the upturned operators, affecting their safety. Therefore, we propose a wood powdering device. Utility Model Content

[0004] The main objective of this invention is to provide a wood crushing device. By installing a wind-blocking mechanism at the feed hood above the wood powder mill body, the inclined liner of the wind-blocking mechanism, in conjunction with a fan, blows strong air into the feed hood, forming a wind barrier that effectively blocks wood chunks flying upwards during crushing. Simultaneously, a movably mounted stacked baffle on the toothed frame at the end of the inclined liner allows the secondary baffle to tilt backwards to allow wood to pass during feeding, and to block impacts when wood chunks fly outwards. The main baffle can also be rotated at the bolt to adjust its angle, enhancing the interception effect. The wind force and mechanical structure work together harmoniously. The combined structure effectively prevents wood blocks from flying out of the feed inlet. The inclined guides welded to the guard plates on both sides of the feed hood guide the wood smoothly into the feed hood, while simultaneously providing external protection for the guard plates and inclined guides, reducing the area of ​​wood block splashing. The U-shaped perforated plate of the stacked baffle is connected to the toothed frame via bolts and flange nuts, allowing for flexible rotation. It combines buffering and adaptive adjustment capabilities when intercepting wood blocks, ensuring smooth feeding and, through the combined action of multiple components, comprehensively enhancing the safety of operators and reducing the safety hazards caused by flying debris. This effectively solves the problems in the background technology.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A wood crushing device includes a wood powder mill body and a feeding hood. The feeding hood is bolted to the top of the wood powder mill body. The device also includes a wind-cutting mechanism, which comprises an inclined liner, a fan, a toothed frame, and stacked baffles. An inclined liner is installed on the top plate of the feeding hood near its opening, and a fan is bolted to the upper surface of the inclined liner. A wind window is provided on the surface of the inclined liner to guide the fan's airflow into the lower cavity of the feeding hood. A toothed frame is welded to the end of the inclined liner away from the feeding hood. Stacked baffles are movably installed between the tooth grooves of the toothed frame. The stacked baffles include a U-shaped perforated plate, a main section plate, an I-shaped adhesive plate, and a secondary section plate. The main section plate is fixed below the U-shaped perforated plate, and the secondary section plate is bonded to the bottom of the main section plate via the I-shaped adhesive plate. Protective plates are symmetrically welded to the side seats of the feeding hood on both sides of the inclined liner.

[0007] Furthermore, a clamping plate is welded to the upper end of the inclined liner plate, and the U-shaped plate of the clamping plate is clamped to the top plate of the feed hood. The clamping plate and the feed hood are locked together by vertically screwed bolts.

[0008] By adopting the above technical solution, after the inclined liner plate is welded with the clamping plate, the clamping plate can be clamped at the top plate of the feed hood. Then, the bolts are screwed down from the clamping plate through the double-plate body of the clamping plate and the top plate of the feed hood, thereby firmly locking the clamping plate at the feed hood to complete the installation.

[0009] Furthermore, a U-shaped through-hole plate is fitted between the tooth grooves of the tooth frame below the inclined liner, and a rotating hole for inserting the bolt shaft is opened through the U-shaped through-hole plate and the tooth frame. A flange nut is screwed onto the end shaft of the bolt shaft that passes through the tooth frame.

[0010] By adopting the above technical solution, the tooth groove of the gear frame can be inserted into the U-shaped through-hole plate. Then, after the rotating holes of the gear frame and the U-shaped through-hole plate pass through the bolt shaft, the flange nut is screwed on to lock them, so that the U-shaped through-hole plate can rotate at the bolt shaft inside the gear frame.

[0011] Furthermore, a rectangular groove is provided at the lower plate of the U-shaped through-hole plate, and a main section plate is welded into the rectangular groove of the U-shaped through-hole plate.

[0012] By adopting the above technical solution, the U-shaped through-hole plate can be used to securely weld the main section plate by clamping it with a rectangular groove.

[0013] Furthermore, the main section plate is inserted and bonded in a groove on one side of the I-shaped adhesive plate, and a secondary section plate is inserted and bonded in a groove on the other side of the I-shaped adhesive plate.

[0014] By adopting the above technical solution, the main section plate and the secondary section plate can be inserted and bonded into the grooves on both sides of the I-shaped adhesive plate, so that the secondary section plate can change its angle below the main section plate with the help of the I-shaped adhesive plate.

[0015] Furthermore, an inclined guide seat is obliquely welded between the double-group seat plate of the guard plate and the inlet seat plate of the feed hood seat, and the plate body of the inclined guide seat is a U-shaped inclined plate body.

[0016] By adopting the above technical solution, after welding the inclined guide seat between the two sets of seat plates of the guard plate, it is convenient for the inclined guide seat to guide the pre-treated wood of appropriate size into the feed hood seat and fall into the wood powder machine body for crushing.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model features an air-blocking mechanism installed at the feed hood above the wood powder mill body. The inclined liner of the air-blocking mechanism, in conjunction with a fan, blows strong air into the feed hood, forming an air barrier that effectively blocks wood blocks flying upwards during wood pulverization. Simultaneously, a stacked baffle is movably installed on the toothed frame at the end of the inclined liner. When wood is being fed, the secondary baffle can be flipped backward to allow passage, while when wood blocks fly out, the secondary baffle can block the impact. The main baffle can also be rotated at the bolt shaft to adjust the angle, enhancing the interception effect. The wind force and mechanical structure work together to effectively prevent wood blocks from flying out of the feed inlet.

[0019] Furthermore, the inclined guide seats welded to the guard plates on both sides of the feed hood can guide the wood to slide smoothly into the feed hood, while forming an outer protection for the guard plates and inclined guide seats, reducing the range of wood block splashing. The U-shaped through-hole plate of the stacked baffle is connected to the toothed frame through the bolt shaft and flange nut, which can rotate flexibly. When intercepting wood blocks, it has both buffering and self-adjusting capabilities, which not only ensures smooth feeding, but also comprehensively improves the safety protection of operators through the combined action of multiple components, reducing the safety hazards caused by waste splashing. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of a wood crushing device according to the present invention.

[0021] Figure 2 This is a schematic diagram showing the disassembled feed hood and air cut-off mechanism of a wood crushing device according to the present invention.

[0022] Figure 3 This is an exploded view of the air-cutting mechanism of a wood crushing device according to this utility model.

[0023] Figure 4 This is an exploded view of the stacked baffle of a wood crushing device according to this utility model.

[0024] In the diagram: 1. Wood powder machine body; 2. Feed hood; 3. Air cut-off mechanism; 4. Clamping plate; 5. Inclined liner plate; 6. Fan; 7. Gear frame; 8. Stacking baffle; 9. Bolt shaft; 10. Flange nut; 11. U-shaped through-hole plate; 12. Main cut-off plate; 13. I-shaped rubber plate; 14. Secondary cut-off plate; 15. Guard plate; 16. Inclined guide seat. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-4 As shown, a wood pulverizing device includes a wood powder mill body 1 and a feeding hood 2. The feeding hood 2 is bolted to the top of the wood powder mill body 1. The device also includes a wind-cutting mechanism 3, which comprises an inclined liner plate 5, a fan 6, a gear frame 7, and a stacked baffle plate 8. An inclined liner plate 5 is installed on the top plate of the feeding hood 2 near its opening, and the fan 6 is bolted to the upper surface of the inclined liner plate 5. The surface of the inclined liner plate 5 has openings for guiding the airflow from the fan 6 into the feeding hood. The air vent of the lower cover cavity of seat 2, and the inclined plate 5 is welded to the end of the inclined plate body away from the feed cover seat 2. The tooth frame 7 is movably installed between the tooth grooves of the tooth frame 7. The stacked baffle 8 includes a U-shaped through plate 11, a main section plate 12, an I-shaped rubber plate 13 and a secondary section plate 14. The main section plate 12 is fixed below the U-shaped through plate 11, and the secondary section plate 14 is glued to the lower part of the main section plate 12 through the I-shaped rubber plate 13. The side seats of the feed cover seat 2 on both sides of the inclined plate 5 are symmetrically welded with protective plates 15.

[0027] The inclined liner plate 5 is welded with a clamping plate 4 at its upper end, and the U-shaped plate of the clamping plate 4 is clamped at the top plate of the feed hood 2. The clamping plate 4 and the feed hood 2 are locked together by vertically screwed bolts.

[0028] By adopting the above technical solution, after the inclined liner plate 5 is welded with the clamping plate 4, the clamping plate 4 can be clamped at the top plate of the feed hood 2. Then, the bolts are screwed down from above the clamping plate 4 through the double plate body of the clamping plate 4 and the top plate of the feed hood 2, thereby firmly locking the clamping plate 4 at the feed hood 2 to complete the installation.

[0029] Among them, a U-shaped through-hole plate 11 is fitted between the tooth grooves of the tooth frame 7 below the inclined liner plate 5, and a rotating hole for inserting the bolt shaft 9 is opened through the U-shaped through-hole plate 11 and the tooth frame 7. A flange nut 10 is screwed onto the end shaft of the bolt shaft 9 that passes through the tooth frame 7.

[0030] By adopting the above technical solution, the tooth groove of the gear frame 7 can be inserted into the U-shaped through plate 11. Then, the rotating holes of the gear frame 7 and the U-shaped through plate 11 pass through the bolt shaft 9 and are locked by screwing on the flange nut 10, so that the U-shaped through plate 11 can rotate at the bolt shaft 9 inside the gear frame 7.

[0031] The lower plate of the U-shaped through-hole plate 11 is provided with a rectangular groove, and a main section plate 12 is inserted and welded into the rectangular groove of the U-shaped through-hole plate 11.

[0032] By adopting the above technical solution, the U-shaped through-hole plate 11 can be used to securely weld the main section plate 12 by clamping it with a rectangular groove.

[0033] The main section plate 12 is inserted and bonded in a groove on one side of the I-shaped adhesive plate 13, and a secondary section plate 14 is inserted and bonded in a groove on the other side of the I-shaped adhesive plate 13.

[0034] By adopting the above technical solution, the main section plate 12 and the secondary section plate 14 can be inserted and bonded into the grooves on both sides of the I-shaped adhesive plate 13, so that the secondary section plate 14 can change its angle below the main section plate 12 with the help of the I-shaped adhesive plate 13.

[0035] Among them, an inclined guide seat 16 is inclinedly welded between the double-group seat plate of the guard plate 15 and the inlet seat plate of the feed hood seat 2, and the plate body of the inclined guide seat 16 is a U-shaped inclined plate body.

[0036] By adopting the above technical solution, after welding the inclined guide seat 16 between the two sets of seat plates of the guard plate 15, it is convenient for the inclined guide seat 16 to guide the pre-treated wood of appropriate size into the feed hood seat 2 and fall into the wood powder machine body 1 for crushing.

[0037] It should be noted that this utility model is a wood crushing device. A wind-cutting mechanism 3 is installed at the feed hood 2 above the wood powder mill body 1. After the guard plate 15 with the inclined guide seat 16 is welded to the vertical seat plates on both sides and the seat plate at the feed inlet of the feed hood 3, the inclined liner plate 5 of the wind-cutting mechanism 3 is clamped at the top plate of the feed hood 2 by means of a clamping plate 4 and then locked with bolts. The surface of the inclined liner plate 5 is locked with a fan 6 by bolts. Under the guidance of professional electrical technicians, the fan 6 is wired and controlled according to the actual usage requirements of the wood powder mill body 1. Subsequently, the U-shaped through-hole plate 11 of the stacked baffle 8 is inserted into the tooth groove of the gear frame 7. The rotating holes of the gear frame 7 and the U-shaped through-hole plate 11 pass through the bolt shaft 9 and are locked by screwing on the flange nut 10, allowing the U-shaped through-hole plate 11 to rotate at the bolt shaft 9 inside the gear frame 7. When the worker prepares... When the prepared timber of a certain size is fed into the feed hood 2 by the conveying equipment, the timber slides into the feed hood 2 along the inclined guide seat 16. When the timber passes the stacked baffle 8, the secondary section plate 14 can flip back and change its angle at the I-shaped rubber plate 13. At the same time, the main section plate 12 of the stacked baffle 8 can rotate at the bolt shaft 9, so that the timber can be smoothly fed into the feed hood 2 from under the stacked baffle 8. When wood blocks fly out of the wood powder machine body 1, the fan 6 can blow air into the feed hood 2 at the inclined liner plate 5. Under the strong wind, the wood blocks are blocked, while some unblocked wood blocks will hit the secondary section plate 14, which can change its angle, and be blocked, thereby preventing the wood blocks from flying out of the feed hood 2 and endangering the operators. In addition, the guard plate 15, together with the inclined guide seat 16, can also simply protect the outside of the feed hood 2 and prevent wood blocks from flying out.

[0038] It should be noted that this utility model is a wood crushing device. All components in this utility model are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A wood crushing device, comprising a wood powder machine body (1) and a feeding cover seat (2), the feeding cover seat (2) is bolted at the top end of the wood powder machine body (1), characterized in that: It also includes a wind-cutting mechanism (3), which includes an inclined liner (5), a fan (6), a gear frame (7), and a stacked baffle (8). An inclined liner (5) is installed on the top plate of the feed hood (2) near its own opening, and the fan (6) is bolted to the upper surface of the inclined plate (5). The surface of the inclined liner (5) is provided with a wind window for guiding the air force of the fan (6) into the lower opening of the feed hood (2), and the inclined liner (5) is far away from the inclined plate of the feed hood (2). A toothed frame (7) is welded to the end. A stacked baffle (8) is movably installed between the tooth grooves of the toothed frame (7). The stacked baffle (8) includes a U-shaped through-hole plate (11), a main section plate (12), an I-shaped rubber plate (13), and a secondary section plate (14). The main section plate (12) is fixed below the U-shaped through-hole plate (11), and the secondary section plate (14) is bonded to the main section plate (12) through the I-shaped rubber plate (13). A protective plate (15) is symmetrically welded to the side seat plate of the feed hood seat (2) on both sides of the inclined liner plate (5).

2. A wood pulverizing device according to claim 1, characterized in that: The upper end of the inclined liner (5) is welded with a clamping plate (4), and the U-shaped plate of the clamping plate (4) is clamped at the top plate of the feed hood (2). The clamping plate (4) and the feed hood (2) are locked together by vertically screwed bolts.

3. A wood pulverizing device according to claim 1, characterized in that: A U-shaped through-hole plate (11) is fitted between the tooth grooves of the tooth frame (7) below the inclined liner plate (5), and a rotating hole for inserting the bolt shaft (9) is opened between the U-shaped through-hole plate (11) and the tooth frame (7). A flange nut (10) is screwed onto the end shaft of the bolt shaft (9) that passes through the tooth frame (7).

4. A wood pulverizing device according to claim 1, characterized in that: The lower plate of the U-shaped through-hole plate (11) is provided with a rectangular groove, and a main section plate (12) is inserted and welded into the rectangular groove of the U-shaped through-hole plate (11).

5. A wood pulverizing device according to claim 1, characterized in that: The main section plate (12) is inserted and bonded in a groove on one side of the I-shaped adhesive plate (13), and a secondary section plate (14) is inserted and bonded in a groove on the other side of the I-shaped adhesive plate (13).

6. A wood pulverizing apparatus according to claim 1, wherein: An inclined guide seat (16) is obliquely welded between the double-group seat plate of the guard plate (15) and the inlet seat plate of the feed hood seat (2), and the plate body of the inclined guide seat (16) is a U-shaped inclined plate body.