Ring type long wood flaking machine

Abstract

The utility model discloses a ring type long wood flaking machine. The device comprises a leaf chain conveyor, a transition frame and a cutting chamber, a heavy pressure device is arranged at the top of the transition frame, a side pressure device is arranged beside the transition frame, the heavy pressure device comprises a heavy pressure driving mechanism and a side pressure driving mechanism which is connected with the heavy pressure driving mechanism and extends into the transition frame, and the side pressure device comprises a side pressure driving mechanism and a side pressure assembly which is driven by the side pressure driving mechanism and can move in the radial direction relative to the rotary cutter ring; through movement of the side pressing assembly, logs can be stacked to the cutting position of the rotary cutter ring, and then the raw materials are pressed through the heavy pressing component. The device has the advantages that the special effect of stacking and compacting logs is achieved, raw materials are not moved in the cutting process, and the wood shavings are good in shape. The raw materials in the cutting chamber are ensured to be completely cut, meanwhile, the safety of equipment is ensured, the cutting time is effectively shortened, the whole cutting period is also correspondingly shortened, the productivity is increased, and the cost performance of the equipment is improved.

Description

Technical Field

[0001] This invention relates to a particleboard industrial production equipment, specifically a ring-type long material particleboard chipper. Background Technology

[0002] The ring-type long timber chipper is a shaving equipment used in the particleboard industry. Raw materials enter the cutting chamber of the long timber chipper through the feeding system. As the slide advances, the raw materials are shaved into shavings by the flying knives mounted on the high-speed rotating cutter ring. The shavings are discharged from the bottom of the slide. Traditional ring-type long timber chippers use a plate chain conveyor for feeding when cutting small-diameter timber, branches, and wood cores. The logs are placed on the plate chain conveyor and enter the cutting chamber. Under the combined action of side pressure and heavy pressure, the raw materials are compressed, the slide advances, and the logs in the cutting chamber are shaved into shavings by the flying knives mounted on the cutter ring.

[0003] Among them, the existing ring-type long material chipper has a side pressure device including a side pressure arm fixedly installed on the transition frame, a side pressure component set on the side pressure arm, and an aluminum block installed on the front end face of the side pressure component to ensure the safe operation of the blade ring (the aluminum block can be cut by the blade ring in a small amount). When in use, the long material is pressed and positioned by the heavy pressure of the lower pressure device and the side pressure of the side pressure device. At this time, the cutting chamber is moved laterally by the slide and the flying knife installed on the high-speed rotating blade ring is cut into shavings. The traditional structure usually has the following problems: (1) The side pressure component is fixed. At the same time, due to the feeding of the plate conveyor, it cannot play the role of material handling and the filling rate is not high. When the heavy pressure is applied, some raw materials are only pressed down by the heavy pressure but do not touch the side pressure, resulting in the side pressure failing to play its role. The side pressure component is useless; (2) Since the side pressure component is fixed and the blade ring cutting stroke is fixed each time, it will cause a waste of cutting time and an increase in energy consumption in the materialless area; (3) The side pressure arm of the side pressure device is installed on the transition frame, making equipment maintenance inconvenient. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a ring-type long material chipper that not only ensures that the raw material does not move during the cutting process and produces good shavings, but also effectively shortens the cutting time, increases production capacity, and is easy to maintain.

[0005] To solve the above-mentioned technical problems, the present invention provides a ring-type long timber chipper, comprising a plate chain conveyor for conveying logs, a transition frame connected to the plate chain conveyor, and a cutting chamber connected to the transition frame and driven by a slide. The cutting chamber can move laterally relative to the feeding direction under the drive of the slide, so that the logs entering the cutting chamber are shaving by a rotating blade ring. A heavy-duty device is provided at the top of the transition frame, and a side-pressure device is provided on the side of the transition frame. The heavy-duty device includes a heavy-duty drive mechanism and a heavy-duty component connected to the heavy-duty drive mechanism and extending into the transition frame to press down the logs entering the cutting chamber through the transition frame. The side-pressure device includes a side-pressure drive mechanism and a side-pressure component driven by the side-pressure drive mechanism and capable of moving radially relative to the rotating blade ring. The movement of the side-pressure component can accumulate the logs towards the cutting area of ​​the rotating blade ring, and then the heavy-duty component can compress the raw material.

[0006] The side pressure drive mechanism has a pressure sensor for detecting the magnitude of the pushing pressure, and the forward stroke of the side pressure assembly is controlled by the magnitude of the pushing pressure detected by the pressure sensor.

[0007] The side pressure drive mechanism is a hydraulic cylinder, and the pressure sensor is installed on the hydraulic pipeline of the hydraulic cylinder.

[0008] The hydraulic system of the hydraulic cylinder is equipped with a safety valve.

[0009] The side pressure drive mechanism is equipped with a displacement sensor for detecting the movement position of the side pressure component, and the slide can travel the required distance according to the position of the side pressure component.

[0010] The side pressure assembly includes a sliding connecting seat and a side pressure block mounted on the front end of the sliding connecting seat, wherein an aluminum block extending into the cutting chamber is mounted on the front end surface of the side pressure block.

[0011] The aluminum block has an arc-shaped structure that bulges in the direction of material feeding.

[0012] The side-pressure device also includes a fixed base, and the sliding connecting base is located above the fixed base and connects the side-pressure drive mechanism between the fixed base and the sliding connecting base.

[0013] The top of the fixed seat is provided with a side plate, and two pairs of positioning sleeves are installed on the side plate. A guide shaft is installed between each pair of positioning sleeves. At least one pair of sliding sleeves are fixedly installed at the bottom of the sliding connecting seat, and each pair of sliding sleeves is installed on one of the guide shafts.

[0014] The advantages of this invention are:

[0015] (1) By setting a side pressure component that can move radially relative to the rotating blade ring in the cutting chamber by the side pressure drive mechanism, the logs can be piled up towards the cutting point of the rotating blade ring by the movement of the side pressure block in the side pressure component, and then the raw material is pressed by the heavy pressure component. This ingenious structural design achieves the special effect of the logs being piled up tightly and compacted, ensuring that the raw material does not move during the cutting process and the shavings have a good shape.

[0016] (2) The pressure sensor can detect the pushing pressure of the side pressure device and thus control the forward stroke of the side pressure component. A displacement sensor is set on the side pressure drive mechanism to detect the side pressure movement distance. The slide can travel the required distance according to the position of the side pressure block. This ensures that the log is always in a tightly compacted state, ensuring that the raw material in the cutting chamber is completely cut, while also ensuring the safety of the equipment. In particular, the side pressure device can advance the side pressure drive mechanism a different distance each time according to the raw material in the cutting chamber. The cutting stroke of the blade ring changes accordingly, effectively shortening the cutting time and the entire cutting cycle. This increases the production capacity and improves the cost-effectiveness of the equipment. This solves the problem that, in the traditional case, the side pressure component is fixed and the cutting stroke of the blade ring is fixed each time, which would cause wasted cutting time and increased energy consumption in the material-free area.

[0017] (3) A safety valve is installed on the hydraulic system of the hydraulic cylinder to ensure that the side pressure component has no displacement when it is stationary, thus ensuring the safety of the equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the ring-type long material slicer of this utility model;

[0019] Figure 2 This is a side view of the ring-type long material slicer of this utility model.

[0020] Figure 3 This is a schematic diagram of the main structure of the side pressure device in this utility model;

[0021] Figure 4 This is a side view of the side pressure device in this utility model.

[0022] Figure 5 This is a top view of the side pressure device in this utility model. Detailed Implementation

[0023] The ring-type long material planer of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Example 1

[0024] The existing ring-type long timber chipper includes a plate chain conveyor 2 for conveying logs 1, a transition frame 3 connected to the plate chain conveyor, and a cutting chamber 5 (the cutting chamber is mounted on the slide) connected to the transition chamber and driven by a slide 4. The cutting chamber 5 can move laterally relative to the feeding direction under the drive of the slide, so that the logs entering the cutting chamber are shaving by a rotating cutter ring 6 (the rotating cutter ring is mounted on the slide, and the cutting chamber moves synchronously with the rotating cutter ring). This is the conventional structure and principle of a long timber chipper, and will not be described in detail in this embodiment. The present invention is an improvement on the above-mentioned ring-type long timber chipper. As shown in the figure, the present invention has a heavy-duty device 7 installed on the top of the transition frame 3. A side pressure device 8 is provided on the side of the transition frame 3. The heavy pressure device 7 includes a heavy pressure drive mechanism 9 and a heavy pressure component 10 that extends into the transition chamber and is connected to the heavy pressure drive mechanism. The heavy pressure drive mechanism drives the heavy pressure component 10 to move downward, thereby pressing down the logs that enter the cutting chamber through the transition frame. The side pressure device 5 includes a fixed base 17 fixedly installed on the side of the transition frame 3, a side pressure drive mechanism 11 as a power execution unit, and a side pressure assembly 12 driven by the side pressure drive mechanism that can move radially relative to the rotating blade ring. The side pressure assembly 12 includes a sliding connecting seat 14 located above the fixed base and a side pressure block 15 installed at the front end of the sliding connecting seat 14. The front end face of the side pressure block 15 ( Figure 5 The left side shown is defined as the backend. Figure 5 An aluminum block 16 (installed on one side of the side pressure block 15 and extending into the cutting chamber) is mounted on the right side (defined as the front end). The aluminum block 16 is an arc-shaped structure protruding in the pushing direction. The sliding connecting seat 14 is located above the fixed seat 17. The fixed end of the side pressure drive mechanism 11 is connected to the fixed seat, and the power execution end of the side pressure drive mechanism 11 is connected to the sliding connecting seat, thereby driving the sliding connecting seat to move back and forth. Thus, under the drive of the side pressure drive mechanism 11, the side pressure block 15 can drive the aluminum block 16 to rotate relative to the cutting tool in the cutting chamber. The ring moves radially, and the aluminum block 16 is moved by the side pressure block 15, which can accumulate the logs towards the cutting edge of the rotating blade ring and then the heavy pressure component 10 presses the raw material. In this embodiment, the side pressure drive mechanism 11 is a hydraulic cylinder. The hydraulic cylinder must have a corresponding hydraulic system. The telescopic rod of the hydraulic cylinder is the power execution end. A pressure sensor 13 is installed on the hydraulic pipeline of the hydraulic cylinder. The pressure sensor 13 can detect the magnitude of the pushing pressure (the magnitude of the pushing pressure is equivalent to knowing the amount of logs in the cutting chamber) and thus control the forward stroke of the side pressure component.

[0025] Furthermore, the side pressure drive mechanism 11 is equipped with a displacement sensor for detecting the moving position of the side pressure block. In this embodiment, the displacement sensor is a displacement sensor built into the hydraulic cylinder. The position of the aluminum block is accurately determined by detecting the extension length of the telescopic rod. The displacement sensor increases the precision control of the equipment operation. The slide 4 can travel the required distance according to the position of the aluminum block, ensuring that the raw material in the cutting chamber is completely cut, thereby ensuring the safety and stability of the equipment operation. At the same time, the hydraulic system of the hydraulic cylinder is equipped with a safety valve, which can ensure that the side pressure block has no displacement in the static state, further ensuring the safety of the equipment.

[0026] Furthermore, to further improve operational reliability, two side plates 18 can be provided on the top of the fixed base 17, and a pair of positioning sleeves 19 can be installed on each of the two side plates 18. A guide shaft 20 is installed between each pair of positioning sleeves 19. At least one pair of sliding sleeves 21 are fixedly installed on the bottom of the sliding connecting base 14 (when there is only one pair of sliding sleeves, one of them is fitted into the guide shaft). Figure 5 (As shown above) another one is mounted on another guide shaft ( Figure 5 As shown below), this guides the sliding connector 14, ensuring the accuracy of its movement. Example 2

[0027] The shaving method of the ring-type long material shaving machine in this embodiment includes the following steps:

[0028] A. Place log 1 on plate chain conveyor 2. After passing through transition frame 3, the log enters cutting chamber 5.

[0029] B. First, the side pressure drive mechanism 11 of the side pressure device 8 drives the side pressure component 12 to move, thereby causing the side pressure block 15 to move radially relative to the rotating blade ring in the cutting chamber to accumulate logs. Then, the heavy pressure drive mechanism of the heavy pressure device 7 drives the heavy pressure component 10 to press down, thereby pressing the logs that have entered the cutting chamber 5.

[0030] C. The logs in the cutting chamber 5 are cut into shavings by the flying knife mounted on the rotating cutter ring 6, and the shavings are discharged from the lower part of the slide.

[0031] D. As the number of logs 1 gradually decreases after being shaving, the pressure sensor 13 detects the forward pressure of the side pressure drive mechanism 11. When the pressure setting value of the hydraulic system is reached, the side pressure component stops moving (i.e., it stops moving forward), thereby controlling the forward stroke of the side pressure block 15 (i.e., the stroke of the aluminum block). During this process, the displacement sensor obtains the moving distance of the side pressure block 15. The signals from the displacement sensor and the control signals from the slide are controlled by the PLC control system or a microcontroller (collectively referred to as the control unit). Therefore, when the control unit obtains the signal from the displacement sensor and calculates it, it issues a corresponding control command (moving distance) to the slide. The slide then moves the corresponding distance according to the position of the side pressure component. Thus, the side pressure component moves a different distance each time depending on the amount of logs in the cutting chamber, and the cutting stroke of the rotating blade ring changes accordingly.

[0032] Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. A ring-type long timber chipper, comprising a plate chain conveyor (2) for conveying logs (1), a transition frame (3) connected to the plate chain conveyor, and a cutting chamber (5) connected to the transition frame and driven by a slide (4), wherein the cutting chamber (5) can move laterally relative to the feeding direction under the drive of the slide so that a rotating blade ring (6) performs shavings operation on the logs entering the cutting chamber; characterized in that: The top of the transition frame (3) is provided with a heavy pressure device (7), the side of the transition frame (3) is provided with a side pressure device (8), the heavy pressure device (7) comprises a heavy pressure driving mechanism (9) and a heavy pressure component (10) connected with the heavy pressure driving mechanism and extending into the transition frame to press the logs entering the cutting chamber through the transition frame, the side pressure device (8) comprises a side pressure driving mechanism (11) and a side pressure assembly (12) driven by the side pressure driving mechanism and capable of moving radially relative to the rotary knife ring, through the movement of the side pressure assembly (12), the logs can be accumulated to the cutting position of the rotary knife ring and then pressed by the heavy pressure component (10).

2. A ring-type long-material flaker as claimed in claim 1, characterized in that: The side pressure driving mechanism (11) is provided with a pressure sensor (13) for detecting the pushing pressure, and the pushing pressure detected by the pressure sensor (13) controls the forward stroke of the side pressure assembly.

3. A ring-type long-material flaker as claimed in claim 2, characterized in that: The side pressure driving mechanism (11) is a hydraulic cylinder, and the hydraulic pipeline of the hydraulic cylinder is provided with the pressure sensor (13).

4. A ring-type long-material flaker as claimed in claim 3, characterized in that: A safety valve is arranged on the hydraulic system of the hydraulic cylinder.

5. A ring-type long-material chipper as claimed in claim 1, 2, 3 or 4, characterized in that: The side pressure driving mechanism (11) is provided with a displacement sensor for detecting the moving position of the side pressure assembly, and the sliding seat (4) can walk the required distance according to the position of the side pressure assembly.

6. A ring-type long material chipper as claimed in claim 1, 2, 3 or 5, characterized in that: The side pressure assembly (12) comprises a sliding connecting seat (14) and a side pressure block (15) installed at the front end of the sliding connecting seat (14), and the front end surface of the side pressure block (15) is provided with an aluminum block (16) extending into the cutting chamber.

7. A ring-type long-material flaker as claimed in claim 6, characterized in that: The aluminum block (16) is an arc structure protruding in the pushing direction.

8. A ring-type long-material flaker as claimed in claim 7, characterized in that: The side pressure device (8) further comprises a fixed seat (17), the sliding connecting seat (14) is located above the fixed seat (17) and the side pressure driving mechanism (11) is connected between the fixed seat and the sliding connecting seat.

9. A ring-type long-material flaker as claimed in claim 8, characterized in that: The top of the fixed seat (17) is provided with a side plate (18), the side plate (18) is provided with two pairs of positioning sleeves (19), one guide shaft (20) is arranged between each pair of positioning sleeves (19), and at least one pair of sliding sleeves (21) is fixedly installed at the bottom of the sliding connecting seat (14), and each pair of sliding sleeves (21) is arranged on one of the guide shafts.

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