Spiral roller and log barking machine with same

Abstract

The utility model relates to the field of wood processing equipment. A spiral roller and a log barking machine with the spiral roller are characterized in that the spiral roller comprises a roller body, a plurality of barking cutter teeth are arranged on the surface of the roller body, the plurality of barking cutter teeth are distributed in multiple rows and multiple columns, and the plurality of barking cutter teeth located in the same column are arranged at equal intervals in the circumferential direction of the roller body; every two adjacent rows of peeling cutter teeth are arranged in a staggered mode in the axis direction of the roller body, the multiple peeling cutter teeth located in the same row are arranged in a spiral line shape in the axis direction of the roller body, the log peeling machine comprises a rack, a peeling groove, a bark conveyor and a power driving mechanism, and the peeling groove, the bark conveyor and the power driving mechanism are arranged on the rack. The peeling groove and the bark conveyor are oppositely arranged up and down, a spiral roller is arranged in the peeling groove, and the power driving mechanism drives a roller body to rotate. According to the log peeling machine, the peeling efficiency and the peeling cleanliness of logs can be improved, the rollers are not prone to being stuck and burst, and the service life is long.

Description

Technical Field

[0001] This utility model relates to the field of wood processing equipment, specifically to a spiral roller and a log peeling machine having the same. Background Technology

[0002] In recent years, with the rapid development of the paper and pulp industries, a large number of large-diameter logs that do not meet the requirements for wood processing are being phased out and sent to wood chip processing plants to be processed into small wood chips. These chips are then supplied to paper mills to be processed into wood pulp for papermaking. The logs must be thoroughly debarked and cut into chips to meet the pulping process requirements of paper mills. However, due to differences in log species, diameters, and lengths (e.g., large-diameter logs from pine, acacia, poplar, rubber trees, paper mulberry, camphor, and horse mangrove), and the varying shapes and curvatures of the logs, the debarking operation of wood peeling machines becomes difficult. Specifically, the peeling rollers used in wood peeling machines are currently made by bending and rolling steel plates into a roller shape and then welding them with straight seams to meet the large-diameter design requirements (φ600~φ1400mm). However, during the bending and rolling of the steel plate along its length, certain stress-induced micro-scratches are generated on the surface of the roller. Furthermore, the blades used for peeling the logs are straight in a continuous row. The stripping rollers are arranged in a linear array on their surface. During the process of tumbling and stripping logs, these rollers are subjected to prolonged vertical impacts from large-diameter logs. Under this unbalanced, concentrated impact, the linearly arranged blades transfer all the impact force to the rollers, concentrating it along a straight line. This can easily cause the rollers to burst, and any existing stress-related damage will extend and deepen in the same direction due to the concentrated impact, eventually leading to the entire stripping roller bursting along its length and rendering the wood stripping machine unusable. Furthermore, shorter logs and logs with high curvature are prone to jamming in the middle of the stripping machine's trough and roller due to the linearly arranged blades. This causes the impact on the stripping roller to become highly concentrated and form a straight line, with a sudden increase in impact force. This intensifies the vibration of the wood stripping machine, further increasing the risk of the stripping roller bursting and tearing the machine frame. All these problems negatively impact the equipment's lifespan and operational efficiency. Summary of the Invention

[0003] The purpose of this utility model is to provide a spiral roller and a log peeling machine having the same, which can not only improve the peeling efficiency and cleanliness of logs, but also effectively solve problems such as excessive impact load on the roller, easy jamming and cracking of the roller, and short service life of the roller.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A spiral roller includes a roller body. The surface of the roller body is provided with a plurality of peeling teeth. The plurality of peeling teeth are distributed in multiple rows and columns. The plurality of peeling teeth in the same column are arranged at equal intervals along the circumference of the roller body. The peeling teeth in adjacent columns are staggered in the axial direction of the roller body. The plurality of peeling teeth in the same row are arranged in a spiral shape along the axial direction of the roller body.

[0006] Furthermore, the spacing between two adjacent peeling blades in the same row is set to 100-160 mm, the projection portions of two adjacent peeling blades in the same row overlap in the axial direction of the roller body, and the spacing between the same side ends of the projection is set to 2-20 mm.

[0007] Furthermore, the peeling blade teeth located in the same column are provided with 3 to 6 teeth.

[0008] Furthermore, the tips of the peeling blade teeth are wavy and rounded.

[0009] Furthermore, the peeling teeth are divided into multiple rows of first teeth and multiple rows of second teeth. Each row of the multiple rows of first teeth is set on the surface of the roller body by a reinforcing ring. The spacing between two adjacent rows of first teeth is set to 600-3000 mm. The multiple rows of second teeth are located on the surface of the roller body.

[0010] Furthermore, the length of the reinforcing ring is set to 15-120 mm, and the thickness of the reinforcing ring is set to 8-40 mm.

[0011] This utility model also provides a log peeling machine, including a frame, a peeling groove, a bark conveyor, and a power drive mechanism. The peeling groove, bark conveyor, and power drive mechanism are mounted on the frame. The peeling groove and bark conveyor are arranged vertically opposite each other. The peeling groove is equipped with a spiral roller. The two ends of the roller body are mounted on the frame through bearing seats. The roller body is inclined. The power drive mechanism is used to drive the roller body to rotate.

[0012] Furthermore, the height difference between the two ends of the roller body is set to 100-400mm.

[0013] Furthermore, the power drive mechanism includes a motor, a transmission belt, a reduction gearbox, and a cross-slider coupling. The output end of the motor is connected to the input end of the reduction gearbox via the transmission belt, and the output end of the reduction gearbox is connected to the end of the roller body via the cross-slider coupling.

[0014] The beneficial effects of this utility model are:

[0015] 1. The peeling blade teeth of this utility model are arranged in a spiral pattern, and the relative positions of multiple peeling blade teeth are strictly controlled so that the impact force will not be concentrated in the straight line of the roller body during the process of peeling the logs and receiving impact force. This also avoids stress damage from extending and deepening in the straight line of the roller body, effectively preventing the roller body from cracking and being damaged, and improving the service life of the roller.

[0016] 2. When this roller is configured in a trough-type wood peeling machine, it can achieve maximum effectiveness for peeling large-diameter logs that are short or have a large curvature. Because the peeling blades are arranged in a spiral pattern, the logs are less likely to get stuck in the trough-type wood peeling machine, avoiding situations such as roller body cracking, increased equipment vibration, and tearing of the machine frame. This effectively improves the service life of the equipment, as well as the peeling efficiency and cleanliness of the logs, thereby improving the production line's production efficiency and quality. Attached Figure Description

[0017] Figure 1 This is a perspective view of the spiral roller of this utility model.

[0018] Figure 2 This is a front view of the spiral roller of this utility model.

[0019] Figure 3 yes Figure 2 Enlarged diagram of point A in the middle.

[0020] Figure 4 This is a side view of the spiral roller of this utility model.

[0021] Figure 5 This is a three-dimensional view of the second cutting tooth assembled on the reinforcing ring.

[0022] Figure 6 This is a 3D view of a log peeling machine with a spiral roller.

[0023] Figure 7 This is an exploded perspective view of a log peeling machine with a spiral roller.

[0024] Figure 8 This is a side view of a log peeling machine with spiral rollers. Detailed Implementation

[0025] The technical solutions in the embodiments of this utility model will now be described with reference to the accompanying drawings.

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, a spiral roller includes a roller body 1. The surface of the roller body 1 is provided with a plurality of peeling teeth 2. The plurality of peeling teeth 2 are distributed in multiple rows and columns. The plurality of peeling teeth 2 located in the same column are arranged at equal intervals along the circumferential direction of the roller body 1. The peeling teeth 2 in two adjacent columns are staggered in the axial direction of the roller body 1. The plurality of peeling teeth 2 located in the same row are arranged in a spiral shape along the axial direction of the roller body 1.

[0027] In this embodiment, the peeling blade teeth 2 of this utility model are arranged in a spiral pattern, and the relative positions of multiple peeling blade teeth 2 are strictly controlled so that when the roller is peeling the log and is subjected to impact force, the impact force will not be concentrated in the straight line of the roller body 1, and the hidden stress will be prevented from extending and deepening in the straight line direction of the roller body 1, effectively preventing the roller body 1 from cracking and being damaged, and improving the service life of the roller.

[0028] This roller configuration is a relatively optimal choice for use in trough-type wood peeling machines. It can maximize the peeling effect on large-diameter logs that are short or have a large curvature. Because the peeling blade teeth 2 are arranged in a spiral pattern, the logs are less likely to get stuck in the trough-type wood peeling machine, avoiding the roller body from cracking and the equipment from vibrating more. This effectively improves the service life of the equipment, as well as the peeling efficiency and cleanliness of the logs, thereby improving the production line's efficiency and quality.

[0029] The spacing between two adjacent peeling blade teeth 2 located in the same row is set to 100-160mm. The projection portions of two adjacent peeling blade teeth 2 located in the same row overlap in the axial direction of the roller body 1, and the spacing between the same side ends of the projection is set to 2-20mm.

[0030] The peeling blade teeth 2 located in the same column have 3 to 6 teeth.

[0031] It should be noted that, based on the position control of the peeling blade 2 on the surface of the drum body 1, when the peeling blade 2 of this drum peels the log, the longitudinal and transverse parts of the log can be subjected to equal impact force, maintaining a balanced impact speed. This can reduce the damage to the log caused by uneven force, speed up the peeling speed of the log, improve production efficiency, and effectively prevent short or large-diameter logs with large curvature from being stuck horizontally during the peeling process. This also prevents the drum body 1 from bursting, and also prevents the peeling blade 2 from excessively damaging the log due to the log staying in the same position for too long, ensuring that the peeled log has good finished product quality.

[0032] The peeling blade teeth 2 have wavy, rounded tips. These wavy, rounded teeth strike the surface of the log to achieve the peeling effect, effectively reducing damage to the log and ensuring good finished product quality.

[0033] The multiple peeling teeth 2 are divided into multiple rows of first teeth 2a and multiple rows of second teeth 2b. Each row of the multiple rows of first teeth 2a is set on the surface of the drum body 1 by a reinforcing ring 3. The spacing between two adjacent rows of first teeth 2a is set to 600-3000mm. The multiple rows of second teeth 2b are located on the surface of the drum body 1. The reinforcing ring 3 can enhance the circumferential strength of the drum body 1. By reasonably controlling the distribution position of the reinforcing ring 3 on the drum body 1, the drum body 1 can have good impact resistance while significantly increasing its length and diameter, stably performing log peeling operations, and achieving the goal of simultaneously peeling more logs.

[0034] The length of the reinforcing ring 3 is set to 15-120mm, and the thickness of the reinforcing ring 3 is set to 8-40mm. Reinforcing rings 3 of appropriate length and thickness are selected based on the diameter, curvature, hardness, and length of the log to enhance the circumferential strength of the roller body 1, prevent the roller body 1 from cracking, and improve the service life of the roller.

[0035] like Figure 6 , Figure 7 and Figure 8 As shown, this utility model also provides a log peeling machine, including a frame 4, a peeling groove 5, a bark conveyor 6, and a power drive mechanism 7. The peeling groove 5, the bark conveyor 6, and the power drive mechanism 7 are mounted on the frame 4. The peeling groove 5 and the bark conveyor 6 are arranged vertically opposite each other. The peeling groove 5 is provided with a spiral roller. The two ends of the roller body 1 are mounted on the frame 4 through bearing seats 8. The roller body 1 is inclined. The power drive mechanism 7 is used to drive the roller body 1 to rotate.

[0036] The height difference between the two ends of the roller body 1 is set to 100-400mm.

[0037] The power drive mechanism 7 includes a motor 9, a transmission belt 10, a reduction gearbox 11, and a cross-slider coupling 12. The output end of the motor 9 is connected to the input end of the reduction gearbox 11 via the transmission belt 10, and the output end of the reduction gearbox 11 is connected to the end of the roller body 1 via the cross-slider coupling 12.

[0038] The working principle of the log peeling machine with a spiral roller is as follows: The log is placed in the peeling trough 5, and the power drive mechanism 7 drives the roller body 1 to rotate. The peeling blades 2 on the surface of the roller body 1 peel the log. The peeled bark falls onto the bark conveyor 6 under the action of gravity and is transported by the bark conveyor 6 for easy collection. It should be noted that the roller body 1 is set at an angle in this peeling machine. Under the rotation of the spiral roller, the log can move smoothly to the discharge port of the peeling trough 5 while being peeled stably. There is no need to manually remove the peeled log, so as to achieve the purpose of automated peeling and material collection.

Claims

1. A spiral drum comprising a drum body (1), characterized in that: The surface of the roller body (1) is provided with a plurality of peeling teeth (2), which are distributed in multiple rows and columns. The peeling teeth (2) in the same column are arranged at equal intervals along the circumferential direction of the roller body (1), and the peeling teeth (2) in two adjacent columns are staggered in the axial direction of the roller body (1). The peeling teeth (2) in the same row are arranged in a spiral shape along the axial direction of the roller body (1).

2. The spiral drum of claim 1, wherein: The spacing between two adjacent peeling blades (2) in the same row is set to 100-160 mm. The projection portions of two adjacent peeling blades (2) in the same row overlap in the axial direction of the roller body (1), and the spacing between the same side ends of the projection is set to 2-20 mm.

3. The spiral drum according to claim 1 or 2, characterized in that: The peeling blades (2) located in the same column have 3 to 6 teeth.

4. The spiral drum according to any one of claims 1 to 3, characterized in that: The teeth of the peeling knife (2) are wavy and rounded at the tip.

5. The spiral drum according to any one of claims 1 to 4, characterized in that: The peeling teeth (2) are divided into multiple rows of first teeth (2a) and multiple rows of second teeth (2b). Each row of the multiple rows of first teeth (2a) is set on the surface of the roller body (1) by a reinforcing ring (3). The spacing between two adjacent rows of first teeth (2a) is set to 600-3000 mm. The multiple rows of second teeth (2b) are located on the surface of the roller body (1).

6. The spiral drum of claim 5, wherein: The length of the reinforcing ring (3) is set to 15-120 mm, and the thickness of the reinforcing ring (3) is set to 8-40 mm.

7. A log peeling machine, comprising a frame (4), a peeling groove (5), a bark conveyor (6), and a power drive mechanism (7), wherein the peeling groove (5), the bark conveyor (6), and the power drive mechanism (7) are mounted on the frame (4), and the peeling groove (5) and the bark conveyor (6) are arranged vertically opposite each other, characterized in that: The peeling groove (5) is provided with any one of the spiral rollers as described in claims 1 to 6. The two ends of the roller body (1) are mounted on the frame (4) through bearing seats (8). The roller body (1) is inclined. The power drive mechanism (7) is used to drive the roller body (1) to rotate.

8. A log peeler according to claim 7, characterised in that: The height difference between the two ends of the roller body (1) is set to 100-400mm.

9. A log peeler according to claim 7, characterized in that: The power drive mechanism (7) includes a motor (9), a transmission belt (10), a gearbox (11), and a cross-slider coupling (12). The output end of the motor (9) is connected to the input end of the gearbox (11) via the transmission belt (10), and the output end of the gearbox (11) is connected to the end of the roller body (1) via the cross-slider coupling (12).

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