Wood chip sieve

Abstract

The utility model discloses a wood chip screen which comprises a bottom frame and a screening body arranged over the bottom frame, the bottom frame and the screening body are movably connected through a shaking connecting piece, and the screening body is in transmission connection with a driving device and is driven by the driving device to shake. The screening device is characterized in that a plurality of detachable screen assemblies are arranged in a cavity of the screening body, the sizes of meshes of the screen assemblies can be independently adjusted, the cavity of the screening body is divided into an upper layer and a lower layer through the screen assemblies, one end of the upper layer is communicated with a feeding part, and the other end of the upper layer is communicated with a sundry outlet part; the end, close to the impurity outlet part, of the lower layer communicates with the screened material outlet part. The screen assembly can be detached, the screening body can be cleaned or maintained, and simplicity and practicability are achieved; meanwhile, the screen mesh assembly can adjust the size of the meshes, so that the size of the meshes formed by the transverse mesh wires and the longitudinal mesh wires is adjusted, and the application range of the wood chip screen is wider.

Description

TECHNICAL FIELD

[0001] The utility model relates to timber processing equipment technical field, specifically a kind of wood chip sieve. BACKGROUND

[0002] In the production process of shaving board, raw timber is cut into wood chips by chipper, and then the wood chips are removed from metal impurities by magnet equipment, and then the wood chips need to be screened to remove large-sized impurities, and the wood chips of qualified quality and size are screened.

[0003] The existing wood chip screening machine can effectively screen wood chips, but the existing wood chip screening machine still has some deficiencies, for example, the screen of the existing wood chip screening machine is not detachable, and it is integrated with the wood chip screening machine, which is not convenient for maintenance and cleaning, and the size of the screen mesh of the existing wood chip screening machine cannot be adjusted, which cannot be adjusted according to the size of the wood chips to be screened, greatly limiting the use range of the wood chip screening machine, and adjusting the size of the screen mesh also facilitates the cleaning of the material.

[0004] Therefore, a wood chip sieve is needed. SUMMARY

[0005] The utility model aims at providing a kind of wood chip sieve to solve the problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A wood chip sieve, comprising a chassis and a screening body arranged directly above the chassis, the chassis and the screening body are movably connected through a rocking connecting piece, the screening body is drivingly connected to a driving device and is driven to rock by the driving device, characterized in that: a plurality of detachable screen assembly are arranged in the cavity of the screening body, the plurality of screen assemblies can independently adjust the size of the mesh, the screen assembly divides the cavity of the screening body into an upper layer and a lower layer, one end of the upper layer is communicated with a feeding part, and the other end is communicated with a impurity outlet part, the lower layer is communicated with a screening outlet part near the impurity outlet part end.

[0008] Preferably, the screen assembly has three, the three screen assemblies are detachably arranged in the cavity of the screening body in horizontal height flush, the mesh size of the screen assembly near the feeding part is larger than that near the impurity outlet part, and the mesh size of the screen assembly in the middle is between the mesh size of the screen assembly near the feeding part and the mesh size near the impurity outlet part.

[0009] Preferably, the screen assembly comprises a transverse screen and a longitudinal screen which are combined with each other, a plurality of transverse wires are formed in the transverse screen and a plurality of longitudinal wires are formed in the longitudinal screen, the transverse wires and the longitudinal wires are combined with each other in a vertical manner.

[0010] Preferably, the transverse screen comprises a first square frame, one side frame of the first square frame is hollow and a plurality of first mesh distance adjusting inclined holes are formed in the top surface of the first square frame, the plurality of first mesh distance adjusting inclined holes respectively extend from one end of the top surface to the other end of the top surface at a variable distance between the first mesh distance adjusting inclined holes, one end of the transverse wire forms a vertical extension which is movably arranged in the first mesh distance adjusting inclined hole, the vertical extension is movably connected to the first electric adjusting device and is driven by the first electric adjusting device to adjust the position of the vertical extension in the first mesh distance adjusting inclined hole.

[0011] Preferably, the longitudinal screen comprises a second square frame, the second square frame is hollow and a plurality of second mesh distance adjusting inclined holes are formed in the top surface of the second square frame, the plurality of second mesh distance adjusting inclined holes respectively extend from one end of the top surface to the other end of the top surface at a variable distance between the second mesh distance adjusting inclined holes, one end of the longitudinal wire forms a vertical extension which is movably arranged in the second mesh distance adjusting inclined hole, the vertical extension is movably connected to the second electric adjusting device and is driven by the second electric adjusting device to adjust the position of the vertical extension in the second mesh distance adjusting inclined hole, correspondingly, an assembly hole is formed in the other side frame of the first square frame which is perpendicular to the side frame in which the first mesh distance adjusting inclined hole is formed, and the longitudinal screen is combined with each other by the longitudinal wire passing through the assembly hole and is arranged in the transverse screen.

[0012] Preferably, the inner edges of the first square frame and the second square frame are provided with scales, and the scales are marked with scale values, so that the size of the mesh hole can be accurately displayed through the scales and the scale values.

[0013] Preferably, the screen body is provided with a mounting rail, and a mounting hole which communicates the inside and the outside of the screen body is formed in the top surface of the mounting rail, and the screen assembly is clamped through the mounting hole.

[0014] Compared with the prior art, the screen assembly and the screen body of the utility model are detachably arranged, the screen assembly can be detached and the screen body can be cleaned or repaired, which is simple and practical.

[0015] 1、The screen assembly and the screen body of the utility model are detachably arranged, the screen assembly can be detached and the screen body can be cleaned or repaired, which is simple and practical.

[0016] 2、The screen assembly of the utility model is provided with multiple, preferably three, three screen assemblies can independently adjust the size of the mesh, so that screen assemblies with different mesh sizes can be simultaneously arranged, for example, the mesh size of the screen assembly closer to the feeding side is larger, facilitating rapid screening and preventing blockage due to a large amount of feeding. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a perspective structural schematic view of the first visual angle of the utility model;

[0018] Figure 2 It is a top view of the utility model;

[0019] Figure 3 It is a perspective structural schematic view of the second visual angle of the utility model without installing the screen assembly;

[0020] Figure 4 It is a perspective structural schematic view of the third visual angle of the screen assembly;

[0021] Figure 5 It is a perspective structural schematic view of the fourth visual angle of the horizontal screen;

[0022] Figure 6 It is a perspective structural schematic view of the fifth visual angle of the horizontal screen;

[0023] Figure 7 It is Figure 6 It is a partial enlarged view of A;

[0024] Figure 8 It is a perspective structural schematic view of the sixth visual angle of the vertical screen.

[0025] In the figure: 1 - underframe; 2 - screening body; 21 - feeding part; 22 - sundry outlet part; 23 - screening outlet part; 24 - mounting rail; 25 - mounting hole; 3 - rocking connecting piece; 4 - driving device; 5 - screen assembly; 51 - horizontal screen; 511 - first square box; 512 - first mesh distance adjusting inclined hole; 513 - horizontal wire; 514 - first electric adjusting device; 515 - assembling hole; 52 - vertical screen; 521 - second square box; 522 - second mesh distance adjusting inclined hole; 523 - vertical wire; 524 - second electric adjusting device. DETAILED DESCRIPTION

[0026] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] As Figure 1 and Figure 2 The utility model discloses a wood chip sieve, which is used for screening wood chips after iron removal in the production process of shaving board, so as to select wood chips with qualified size and quality for the next process. Specifically, the wood chip sieve comprises a chassis 1 and a screening body 2 arranged above the chassis 1. The screening body 2 is a hollow cavity with an open top. Further, the chassis 1 and the screening body 2 are movably connected through a rocking connecting piece 3. Specifically, the lower end of the rocking connecting piece 3 is rotatably connected to the chassis 1, and the upper end of the rocking connecting piece 3 is rotatably connected to the screening body 2, so that the screening body 2 can rock relative to the chassis 1. Further, the screening body 2 is drivingly connected to a driving device 4 and is driven to rock by the driving device 4. The driving device 4 is fixedly installed on the chassis 1. The driving device 4 adopts a swing vibration mechanism on the market. When the driving device 4 is started, the wood chips can slightly move to the discharge direction.

[0028] Further, the cavity of the screening body 2 is provided with several detachable screen assemblies 5, the sizes of the meshes of the several screen assemblies 5 can be adjusted independently, specifically, the screen assemblies 5 are three, the three screen assemblies 5 are detachably arranged in the cavity of the screening body 2 in sequence and horizontally and in the same height, so that the screen assemblies 5 divide the cavity of the screening body 2 into an upper layer and a lower layer, further, the upper layer is communicated with the feeding part 21 at one end and communicated with the impurity outlet part 22 at the other end, the lower layer is communicated with the screened material outlet part 23 near the impurity outlet part 22, the horizontal heights of the three screen assemblies 5 are basically flush with the sliding surface of the impurity outlet part 22 which slides the impurities out, preferably, the mesh size of the screen assembly 5 near the feeding part 21 is larger than the mesh size near the impurity outlet part 22, the mesh size of the screen assembly 5 in the middle is between the mesh size of the screen assembly 5 near the feeding part 21 and the mesh size near the impurity outlet part 22, it is easy to know that the mesh size of the screen assembly 5 is gradually reduced from the feeding side to the discharging side, such a setting is to prevent the occurrence of material blocking at the feeding part, since the feeding part 21 is continuously fed, if the screening is too slow, the wood chips (material) will accumulate more and more, and the accumulation of the wood chips will affect the screening, therefore, the mesh size of the screen assembly 5 near the feeding part 21 is set to be relatively large, so that the wood chips can be quickly screened out and discharged, of course, the mesh size of the screen assembly 5 near the feeding part 21 also needs to meet the size requirement of the screening.

[0029] To realize the adjustment of the mesh size of the screen assembly 5, the utility model is further optimized, preferably, as shown in Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8As shown, the screen assembly 5 includes a transverse screen 51 and a longitudinal screen 52 assembled together. The transverse screen 51 has multiple movable transverse wires 513, and the longitudinal screen 52 has multiple movable longitudinal wires 523. The transverse wires 513 and longitudinal wires 523 are assembled together vertically and staggered. Specifically, the transverse screen 51 includes a first square frame 511. One side of the first square frame 511 is hollow, and multiple first mesh spacing adjustment oblique holes 512 are formed on the top surface. These holes extend from one end of the top surface with varying distances between them to the other end. This variation is linear, ensuring that adjacent first mesh spacings... The distance between the adjusting oblique holes 512 is equal at corresponding positions; furthermore, one end of the transverse mesh wire 513 forms a vertical extension, and the vertical extension is movably installed in the first mesh spacing adjusting oblique hole 512. Preferably, the vertical extension is slidably inserted into the first mesh spacing adjusting oblique hole 512. The vertical extension is movably connected to the first electric adjusting device 514 and is driven by the first electric adjusting device 514 to adjust the position of the vertical extension in the first mesh spacing adjusting oblique hole 512. Specifically, the first mesh spacing adjusting oblique hole 512 is connected to the adjusting motor and the clamping mechanism threaded to the adjusting motor spindle. The clamping mechanism clamps all the vertical extensions at once, and the control motor can drive the clamping mechanism to push the vertical extensions to slide in unison, thereby achieving the adjustment effect.

[0030] Similar to the transverse screen 51 described above, such as Figure 8 As shown, the longitudinal screen 52 includes a second square frame 521. Unlike the transverse screen 51 described above, the second square frame 521 is a cuboid. The other structures are similar to those of the transverse screen 51 described above. Specifically, the second square frame 521 is hollow and has a plurality of second mesh spacing adjustment inclined holes 522 formed on its top surface. The plurality of second mesh spacing adjustment inclined holes 522 extend from one end of the top surface to the other end of the top surface with varying distances between the second mesh spacing adjustment inclined holes 522. One end of the longitudinal mesh wire 523 forms a vertical extension, and the vertical extension is movably installed in the second mesh spacing adjustment inclined hole 522. The vertical extension is movably connected to a second electric adjustment device 524 and is driven by the second electric adjustment device 524 to adjust the position of the vertical extension in the second mesh spacing adjustment inclined hole 522.

[0031] To combine the transverse screen 51 and the longitudinal screen 52 into a whole, the transverse wires 513 and the longitudinal wires 523 are interlaced to form square screen holes, specifically, as follows: Figure 6 and Figure 8As shown, the assembly hole 515 is formed on the other frame vertical to the frame where the first pitch adjusting inclined hole 512 is formed in the first frame body 511, and the assembly hole 515 is an elongated through hole, and a sliding groove is formed on the frame opposite to the frame where the assembly hole 515 is formed, and the longitudinal screen 52 is combined and installed into the transverse screen 51 through the assembly hole 515 by the longitudinal screen wire 523, and the free end of the longitudinal screen wire 523 is clamped into the sliding groove and can slide in the sliding groove, and since the spatial positions of the longitudinal screen wire 523 and the transverse screen wire 513 are staggered after assembly, and the longitudinal screen wire 523 and the transverse screen wire 513 are perpendicular to each other in the length direction (spatially vertical), the longitudinal screen wire 523 and the transverse screen wire 513 form a plurality of rectangular screen holes.

[0032] Further optimization, the inner edges of the first frame body 511 and the second frame body 521 are provided with scales, and the scales are marked with scale values, and the scale value takes the screen wire in the middle of the longitudinal screen wire 523 or the transverse screen wire 513 as the zero value, and the size of the screen hole is accurately displayed through the scale and the scale value, and the size of the screen hole is accurately adjusted by the first electric adjusting device 514 and the second electric adjusting device 524.

[0033] When the size of the screen hole is adjusted to be small, the edges of the transverse screen 51 and the longitudinal screen 52 will generate a wider screen hole (a screen hole not meeting the size requirement) composed of the longitudinal screen wire 523 and the transverse screen wire 513, and therefore, some baffles need to be placed at the edges to block these holes, and these holes are not used for screening during screening. Figure 5 As shown, the baffles are elastic plates, which are installed between the transverse screen wire 513 on the edge and the frame, and the movement of the transverse screen wire 513 on the edge can drive the elastic plate to extend and move, so as to block the holes in real time.

[0034] In order to realize the quick installation and disassembly of the screen assembly 5, the mounting rail 24 is formed in the screening body 2, and the mounting hole 25 which communicates the inside and outside of the screening body 2 is formed in the screening body 2 and located at the top surface position of the mounting rail 24, and the specific installation mode is that the screen assembly 5 is placed into the opening at the top of the screening body 2, and one end of the screen assembly 5 is clamped to the mounting hole 25, and the other end of the screen assembly 5 is placed on the mounting rail 24, and the disassembly process is opposite, so that the screen assembly 5 is simple and efficient in disassembly and assembly.

[0035] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A wood chip sieve, comprising a base frame (1) and a screening body (2) disposed directly above the base frame (1), wherein the base frame (1) and the screening body (2) are movably connected by a rocking connector (3), and the screening body (2) is driven to a drive device (4) and is driven to rock by the drive device (4), characterized in that: The cavity of the screening body (2) is provided with several detachable screen assemblies (5). The size of the mesh of each screen assembly (5) can be adjusted independently. The screen assembly (5) divides the cavity of the screening body (2) into an upper layer and a lower layer. One end of the upper layer is connected to the feed section (21), and the other end is connected to the waste material outlet section (22). The end of the lower layer near the waste material outlet section (22) is connected to the screen material outlet section (23).

2. The wood chip sieve according to claim 1, characterized in that: The screen assembly (5) has three parts, which are detachably and horizontally aligned in the cavity of the screening body (2). The mesh size of the screen assembly (5) near the feed section (21) is larger than that of the screen assembly (5) near the waste material outlet (22). The mesh size of the middle screen assembly (5) is between that of the screen assembly (5) near the feed section (21) and the screen assembly (5) near the waste material outlet (22).

3. A wood chip sieve according to claim 1 or 2, characterized in that: The screen assembly (5) includes a transverse screen (51) and a longitudinal screen (52) that are assembled together. The transverse screen (51) has multiple movable transverse wires (513), and the longitudinal screen (52) has multiple movable longitudinal wires (523). The transverse wires (513) and the longitudinal wires (523) are assembled together in a staggered and perpendicular manner.

4. A wood chip sieve according to claim 3, characterized in that: The transverse screen (51) includes a first square frame (511), one side of which is hollow and a plurality of first mesh spacing adjustment oblique holes (512) are formed on the top surface. The plurality of first mesh spacing adjustment oblique holes (512) extend from one end of the top surface to the other end of the top surface with varying distances between the first mesh spacing adjustment oblique holes (512). One end of the transverse mesh wire (513) forms a vertical extension and the vertical extension is movably installed in the first mesh spacing adjustment oblique hole (512). The vertical extension is movably connected to a first electric adjustment device (514) and is driven by the first electric adjustment device (514) to adjust the position of the vertical extension in the first mesh spacing adjustment oblique hole (512).

5. A wood chip sieve according to claim 4, characterized in that: The longitudinal screen (52) includes a second square frame (521), which is hollow and has a plurality of second mesh spacing adjustment oblique holes (522) formed on its top surface. The plurality of second mesh spacing adjustment oblique holes (522) extend from one end of the top surface to the other end with varying distances between them. One end of the longitudinal wire (523) forms a vertical extension portion, which is movably installed into the second mesh spacing adjustment oblique hole (522). The vertical extension is connected to the second electric adjustment device (524) and driven by the second electric adjustment device (524) to adjust the position of the vertical extension in the second mesh spacing adjustment oblique hole (522). Correspondingly, an assembly hole (515) is formed on the other side of the first frame (511) perpendicular to the side of the frame where the first mesh spacing adjustment oblique hole (512) is formed. The longitudinal screen (52) is assembled and installed into the transverse screen (51) by passing longitudinal wires (523) through the assembly hole (515).

6. A wood chip sieve according to claim 5, characterized in that: The inner edges of the first square frame (511) and the second square frame (521) are provided with scales, and the scales are marked with scale values. The size of the mesh is accurately displayed by the scales and scale values.

7. A wood chip sieve according to any one of claims 4 to 5, or 1 or 2, characterized in that: An installation rail (24) is formed in the screening body (2). At the same time, an installation hole (25) is formed in the screening body (2) and located on the top surface of the installation rail (24), which connects the inside and outside of the screening body (2). The screen assembly (5) is installed through the installation hole (25).

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