Wood conveying and screening device

Abstract

The utility model relates to the technical field of wood processing, and particularly discloses a wood conveying and screening device which comprises a rack. The conveying barrels are sequentially arranged on the rack in the vertical direction, a feeding hopper is arranged at one end of the conveying barrel located on the topmost portion, a discharging hopper is arranged at the end, away from the feeding hopper, of each conveying barrel, and a plurality of screening holes are communicated between the vertically adjacent conveying barrels; and the driving mechanism comprises a power piece arranged on one side of the rack, spiral rollers arranged in the conveying barrels respectively and transmission pieces arranged between the power piece and the spiral rollers. The problems that due to the fact that wood screening and conveying are relatively independent, the occupied space of machining equipment is large, and the equipment installation and maintenance cost is increased are solved.

Description

Technical Field

[0001] This application relates to the technical field of wood processing, and specifically discloses a wood transportation and screening device. Background Art

[0002] Wood has a wide range of uses and is often used in papermaking, textile, artificial board, etc. as raw materials for paper, cloth, and artificial board. In the process of processing wood chips by a chipper that processes wood into wood chips, due to different wood varieties, their wood qualities are also different. The wood textures are sparse or dense. The wood with a sparse texture is soft, and the wood with a dense texture is hard. Different sizes of wood chips and sawdust of different sizes will appear during the chip cutting process of wood with different hardnesses. Thus, sawdust is mixed in the processed wood chips and needs to be separated.

[0003] In the production process of wood, after the wood is sliced, it needs to be transported to the next processing station for the next processing process. In the current production and processing system, the screening and transportation of wood are relatively independent. In the wood processing site, screening equipment for screening wood and transportation equipment for transporting wood need to be installed separately, which not only causes the processing equipment to occupy a large space but also increases the equipment installation and maintenance costs. Therefore, in view of this, the inventor provides a wood transportation and screening device to solve the above problems. Summary of the Utility Model

[0004] The purpose of the present utility model is to solve the problem that in the traditional wood production process, the screening and transportation of wood are relatively independent, resulting in a large space occupied by processing equipment and an increase in equipment installation and maintenance costs.

[0005] To achieve the above purpose, the basic scheme of the present utility model provides a wood transportation and screening device, including:

[0006] A frame;

[0007] A number of conveying cylinders are arranged on the frame in sequence along the vertical direction. One end of the conveying cylinder at the topmost position is provided with a feed hopper, and each end of the conveying cylinder away from the feed hopper is provided with a discharge hopper. A number of screening holes are communicated between the vertically adjacent conveying cylinders;

[0008] A driving mechanism, including a power component arranged on one side of the frame, spiral rollers respectively arranged in each conveying cylinder, and a transmission component arranged between the power component and the spiral rollers.

[0009] Further, in two vertically adjacent conveying cylinders, the screening holes are arranged on the inner bottom surface of the upper conveying cylinder, and the top of the lower conveying cylinder is provided with an opening communicated with the screening holes.

[0010] Further, guide plates are symmetrically arranged between the edge of the screening holes at the bottom of the upper conveying cylinder and the open end at the top of the lower conveying cylinder.

[0011] Further, a support cylinder covering the conveying cylinder is also provided on the frame, and the guide plate is arranged between the inner wall of the support cylinder and the opening.

[0012] Further, the discharge hoppers of each conveying cylinder are arranged in sequence along the axial direction of the conveying cylinder, and the horizontal distance between the discharge hopper and the feed hopper decreases successively from top to bottom.

[0013] Further, the transmission member includes a plurality of belt transmission mechanisms respectively arranged between two adjacent conveying cylinders.

[0014] Further, partitions are provided on one side of the conveying cylinder close to the power member, and a partition cavity for installing the belt transmission mechanism is formed between the partition and the inner wall of the conveying cylinder.

[0015] The principle and effect of this solution are as follows:

[0016] In this utility model, by arranging a plurality of conveying cylinders and connecting them through screening holes between the conveying cylinders, and at the same time, the power member and the transmission member can drive each conveying roller to rotate to convey the wood chips in the conveying cylinder, so that the wood chips can be screened through the bottom of the conveying cylinder during the conveying process. Moreover, since the conveying roller continuously contacts the inner wall of the conveying cylinder during rotation, it can avoid the situation that the wood chips block the screening holes during the screening process. Compared with the prior art, this utility model can realize multi-stage segmented screening during the transportation of wood chips, so as to solve the problems that in the traditional wood production process, the screening and transportation of wood are relatively independent, resulting in large space occupation of processing equipment and increased costs of equipment installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0018] Figure 1 shows a schematic diagram of a wood transportation and screening device proposed in an embodiment of the present application;

[0019] Figure 2 shows a partial structural cross-sectional view of a wood transportation and screening device proposed in an embodiment of the present application;

[0020] Figure 3The sectional view of the conveying cylinder structure in a wood transportation and screening device proposed by an embodiment of the present application is shown. Detailed implementation manners

[0021] To further elaborate on the technical means and effects adopted by the present invention to achieve the predetermined invention purpose, the following, in conjunction with the accompanying drawings and preferred embodiments, details the specific implementation manners, structures, features and their effects of the present invention as follows.

[0022] The reference numerals in the accompanying drawings of the specification include: frame 1, feeding hopper 2, first conveying cylinder 3, support cylinder 4, first discharge hopper 5, second discharge hopper 6, servo motor 7, coupling 8, first conveying roller 9, screening holes 10, second conveying roller 11, second conveying cylinder 12, transmission belt 13, and diversion plate 14.

[0023] A wood transportation and screening device, as shown in the embodiments Figure 1 as follows: It includes a frame 1, a driving mechanism and a conveying cylinder arranged on the frame 1, etc., specifically as follows:

[0024] Frame 1: The frame 1 is formed by welding multiple channel steels and alloy plates together, serving as the support foundation of the entire device, and is fixed to the ground for wood processing through support feet, rivets, etc., and is located behind the chipper.

[0025] As Figure 2 and Figure 3 shown, multiple conveying cylinders can be arranged vertically from top to bottom along the frame 1. In this embodiment, taking two conveying cylinders as an example, for the convenience of understanding, they are respectively the first conveying cylinder 3 located above and the second conveying cylinder 12 located below. Considering the situation that the overall volume of the wood in the first conveying cylinder 3 is large during the wood screening process, while the second conveying cylinder 12 contains smaller wood and wood chips, the cross-section of the second conveying cylinder 12 is set to be smaller than that of the first conveying cylinder 3 to avoid excessive occupation of production space. A feeding hopper 2 is arranged on the left side of the top of the first conveying cylinder 3 to facilitate the wood after being chipped by the chipper to enter the first conveying cylinder 3. A first discharge hopper 5 is arranged on the right side of the bottom of the first conveying cylinder 3. The first conveying cylinder 3 and the second conveying cylinder 12 are connected through multiple screening holes arranged at the bottom of the first conveying cylinder 3 and an opening arranged at the bottom of the second conveying cylinder 12. A second discharge hopper 6 is arranged on the right side of the second conveying cylinder 12. Among them, the second discharge hopper 6 is located to the left of the first discharge hopper 5 to avoid the situation of discharge interference between the first discharge hopper 5 and the second discharge hopper 6.

[0026] To improve the installation strength of the second conveying cylinder 12, a support cylinder 4 fixed to the frame 1 is arranged outside the second conveying cylinder 12. The top of the support cylinder 4 is fixed to the outer wall of the first conveying cylinder 3, and the support cylinder 4 completely covers all the screening holes at the bottom of the first conveying cylinder 3. Guide plates 14 are symmetrically arranged between the end of the support cylinder 4 and the opening of the second conveying cylinder 12. This setting method not only facilitates the flow of wood in the first conveying cylinder 3 to the second conveying cylinder 12, but also can avoid mutual interference between the first conveying cylinder 3 and the second conveying cylinder 12.

[0027] The driving mechanism includes a power component arranged on one side of the frame 1, spiral rollers respectively arranged in each conveying cylinder, and a transmission component arranged between the power component and the spiral rollers. Among them, the power component can adopt a servo motor 7. The output shaft of the servo motor 7 is connected to a transmission main shaft through a coupling 8. The transmission main shaft extends into the first conveying cylinder 3. The spiral rollers include a first spiral roller rotatably connected in the first conveying cylinder 3 and a second spiral roller rotatably connected in the second conveying cylinder 12. The first spiral roller is connected to the transmission main shaft. The transmission component includes a belt transmission mechanism arranged between the first spiral roller and the second spiral roller. In this belt transmission mechanism, the driving pulley is coaxially connected to the first conveying roller 9, and the driven pulley is coaxially connected to the second conveying roller 11. A transmission belt 13 is tensioned between the driving pulley and the driven pulley.

[0028] Of course, in other embodiments, the number of conveying cylinders can be stacked in sequence along the vertical direction of the frame 1 according to the actual needs of screening the wood, so as to perform multi-level screening treatment on the wood.

[0029] During the implementation of this embodiment, the wood chipped by the chipper enters the first conveying cylinder 3 through the feed hopper 2. At the same time, the servo motor 7 drives the first conveying roller 9 and the second conveying roller 11 to rotate respectively through the belt transmission mechanism. The first conveying roller 9 drives the wood to move along the first conveying cylinder 3 and is discharged from the first discharge hopper 5. At the same time, during the moving process, the screening holes screen the smaller wood and wood chips. The smaller wood and wood chips enter the second screening holes through the screening holes and the guide plates 14, and are driven by the second conveying roller 11 to move along the second conveying cylinder 12 and are discharged from the second discharge hopper 6. Compared with the prior art, the utility model can realize multi-stage segmented screening during the transportation of wood chips, so as to solve the problems that in the traditional wood production process, the screening and transportation of wood are relatively independent, resulting in large space occupation of processing equipment and increased equipment installation and maintenance costs.

[0030] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments with equivalent changes within the scope of the technical solution of the present utility model by using the technical content disclosed above. However, as long as it does not depart from the content of the technical solution of the present utility model, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.

Claims

1. A wood transportation and screening device, characterized in that, Comprising: Frame; A number of conveying cylinders, which are arranged vertically on the frame in sequence. One end of the conveying cylinder at the topmost position is provided with a feed hopper, and discharge hoppers are provided at one ends of all the conveying cylinders away from the feed hopper. A number of screening holes are communicated between the vertically adjacent conveying cylinders; A driving mechanism, which includes a power member arranged on one side of the frame, spiral rollers respectively arranged in each conveying cylinder, and a transmission member arranged between the power member and the spiral rollers.

2. The wood transportation and screening device according to claim 1, characterized in that, Among two vertically adjacent conveying cylinders, the screening holes are arranged on the inner bottom surface of the conveying cylinder located above, and an opening communicated with the screening holes is arranged at the top of the conveying cylinder located below.

3. The wood transportation and screening device according to claim 2, characterized in that, Deflector plates are symmetrically arranged between the edge of the screening hole at the bottom of the conveying cylinder located above and the end of the opening at the top of the conveying cylinder located below.

4. The wood transportation and screening device according to claim 3, characterized in that, A support cylinder covering the conveying cylinder is further arranged on the frame, and the deflector plate is arranged between the inner wall of the support cylinder and the opening.

5. A wood transportation and screening device according to claim 1, characterized in that, The discharge hoppers of all the conveying cylinders are arranged in sequence along the axial direction of the conveying cylinders, and the horizontal distance between the discharge hopper and the feed hopper decreases sequentially from top to bottom.

6. The wood transportation and screening device according to claim 1, characterized in that, The transmission member includes a number of belt transmission mechanisms respectively arranged between two adjacent conveying cylinders.

7. The wood transportation and screening device according to claim 6, characterized in that, Partition plates are arranged on one side of the conveying cylinder close to the power member, and a partition cavity for installing the belt transmission mechanism is formed between the partition plate and the inner wall of the conveying cylinder.

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