Wood chipping and screening device

Abstract

The utility model relates to a screening device, belongs to the technical field of wood production, in particular to a wood chipping and screening device which comprises a supporting frame and a screening assembly, a chipping machine is fixedly connected to the supporting frame, and the screening assembly comprises a fixing rod, a sliding frame, a screen and a fixing box. According to the device, the screening assembly is matched with the sliding plates through the fixing rods, the sliding frames, the screen, the fixing boxes, the first springs and the sliding plates, the two sliding plates are pushed to move in the direction away from the sliding frames, and when the sliding plates do not abut against the screen any more, the screen can be pulled out of the sliding frames to be replaced, so that the practicability of the device is higher; according to the vibration assembly, a double-shaft motor, a rotating column, a rotating disc, a connecting rod, a fixing block and a second spring are matched, the double-shaft motor is used for driving the rotating disc to rotate periodically, the connecting rod and the fixing block meet periodically, a sliding frame and a screen are driven to move up and down periodically, and therefore the vibration effect is achieved, and the screening speed is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of wood production, in particular to a wood chip screening device. Background Art

[0002] Wood has a wide range of uses and is often used in papermaking, textiles, artificial boards, etc. as raw material for paper, cloth, and artificial boards.

[0003] Chinese patent publication number CN218342359U discloses a wood chip screening device, including a chipper, which is installed above one side of a frame, a feeding conveyor belt is provided at the front feed port of the chipper, and the conveyor belt is installed above the other side of the frame, and a screen frame is hinged on the lower side of the discharge port of the chipper, and a mesh is laid flat in the screen frame. The screen frame is supported on a supporting frame through a bracket, and the inner end of the supporting frame is connected to the end of the frame through a hinge seat; it has a simple structure, a reasonable design, and a novel and unique idea. The wood chips processed by the chipper flow onto the vibrating mesh to screen and filter the wood chips and sawdust. At the same time, the supporting frame can be pushed, pulled and tilted by a telescopic member to make the wood chips on the separated mesh and the wood chips screened and falling onto the inclined flow plate flow more smoothly.

[0004] In the above technical solution, the vibration generated by the chipper is used to drive the mesh to vibrate. Since the chipper and the carrier are both installed on the frame, and the frame is installed on the ground, the vibration transmission effect is general. When the wood is cut, the chipper stops working, and the wood chips on the mesh are not screened, workers still need to operate manually, which is more cumbersome.

[0005] Based on this, the utility model proposes a wood chip screening device. Utility Model Content

[0006] In order to solve the above technical problems, the utility model proposes a wood chip screening device, which can realize the replacement of different types of screens through a screening component and accelerate the screening speed of the screen through a vibration component, thereby improving the practicality of the device.

[0007] The technical solution for achieving the purpose of the utility model is: a wood chip screening device, comprising a support frame, a conveyor belt is provided on the support frame, a chipper is fixedly connected to the support frame, a screening assembly and a vibration assembly are provided on the support frame, the screening assembly comprises a rotating rod, a fixed rod, a sliding frame, a screen and a fixed box, two of the rotating rods are hinged on the support frame, four of the fixed rods are respectively fixedly connected to the two rotating rods, the sliding frame is slidably connected to the four fixed rods, the screen is slidably connected in the sliding frame, the fixed box is fixedly connected to the four fixed rods, the vibration assembly comprises a turntable, a connecting rod and a fixed block, the two turntables are respectively provided on the two rotating rods, the two connecting rods are respectively fixedly connected to the two turntables, and the two fixed blocks are fixedly connected to the sliding frame.

[0008] Preferably, the support frame is provided with a rotating block and an electric telescopic rod, the two rotating blocks are hinged to the support frame, one end of the two electric telescopic rods are respectively fixedly connected to the two rotating blocks, and the other ends of the two electric telescopic rods are respectively hinged to the two rotating rods.

[0009] Preferably, the screening assembly further comprises a spring 1 and a sliding plate, the two sliding plates are slidably connected to the sliding frame, and the two ends of the two springs 1 are fixedly connected to the sliding frame and the two sliding plates respectively.

[0010] Preferably, the vibration assembly further includes a dual-axis motor and a rotating column, the dual-axis motor is fixedly connected to the fixed box, the two rotating columns are fixedly connected to the output shafts of the dual-axis motor, and the two turntables are respectively fixedly connected to the two rotating columns.

[0011] Preferably, the vibration assembly further includes a second spring, and two ends of a plurality of the second springs are respectively fixedly connected to the sliding frame and the fixed box.

[0012] Preferably, a fixing plate is provided on the support frame, the two fixing plates are fixedly connected to the two rotating rods respectively, and the two rotating columns are rotatably connected to the two fixing plates respectively.

[0013] Compared with the prior art, the present invention has the following significant advantages:

[0014] First, in the present invention, the screening assembly cooperates with the rotating rod, the fixed rod, the sliding frame, the screen, the fixed box, the spring and the sliding plate to push the two sliding plates to move away from the sliding frame. When the sliding plates no longer press against the screen, the screen can be pulled out of the sliding frame for replacement, making the device more practical.

[0015] Second: In the utility model, the vibration component cooperates with a dual-axis motor, a rotating column, a turntable, a connecting rod, a fixed block and a spring. The dual-axis motor drives the turntable to rotate periodically, so that the connecting rod and the fixed block meet periodically, driving the sliding frame and the screen to move up and down periodically, thereby achieving a vibration effect and accelerating the screening speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0018] Figure 2 It is a three-dimensional structural diagram of the screening component in the utility model;

[0019] Figure 3 It is a structural diagram of the screening assembly in the utility model;

[0020] Figure 4 yes Figure 3 Schematic diagram of the structure from another perspective.

[0021] Description of reference numerals:

[0022] 1. Support frame; 2. Conveyor belt; 3. Chipper; 4. Screening assembly; 41. Rotating rod; 42. Fixed rod; 43. Sliding frame; 44. Screen; 45. Fixed box; 46. Spring 1; 47. Sliding plate; 5. Vibrating assembly; 51. Dual-axis motor; 52. Rotating column; 53. Turntable; 54. Connecting rod; 55. Fixed block; 56. Spring 2; 6. Rotating block; 7. Electric telescopic rod; 8. Fixed plate. DETAILED DESCRIPTION

[0023] The following is a detailed description of the present invention, clearly and completely describing the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] The present invention provides a wood chip screening device through improvement. The technical solution of the present invention is:

[0025] like Figure 1-Figure 4As shown, a wood chip screening device includes a support frame 1, a conveyor belt 2 is provided on the support frame 1, a chipper 3 is fixedly connected to the support frame 1, a screening component 4 and a vibration component 5 are provided on the support frame 1, the screening component 4 includes a rotating rod 41, a fixed rod 42, a sliding frame 43, a screen 44 and a fixed box 45, two rotating rods 41 are hinged on the support frame 1, the two rotating rods 41 are symmetrical with the conveyor belt 2, four fixed rods 42 are fixedly connected to the two rotating rods 41, each rotating rod 41 has two fixed rods 42, and the sliding frame 43 is slidably connected to the four On the fixed rod 42, the cross-section of the sliding frame 43 is "U"-shaped, the screen 44 is slidably connected to the sliding frame 43, the fixed box 45 is fixedly connected to the four fixed rods 42, the vibration assembly 5 includes a turntable 53, a connecting rod 54 and a fixed block 55, the two turntables 53 are respectively provided on the two rotating rods 41, the two connecting rods 54 are respectively fixedly connected to the two turntables 53, and the side where the connecting rod 54 contacts the fixed block 55 is arc-shaped to reduce the wear caused when the two meet. The two fixed blocks 55 are fixedly connected to the sliding frame 43, and the cross-section of the fixed block 55 is triangular.

[0026] Further, such as Figure 1-Figure 4 As shown, a rotating block 6 and an electric telescopic rod 7 are provided on the support frame 1. The two rotating blocks 6 are hinged on the support frame 1. One end of the two electric telescopic rods 7 is fixedly connected to the two rotating blocks 6 respectively, and the other ends of the two electric telescopic rods 7 are hinged to the two rotating rods 41 respectively. The two electric telescopic rods 7 are symmetrical with the sliding frame 43 as the axis, and the contraction of the electric telescopic rods 7 is used to realize the unloading of wood chips and debris.

[0027] Further, such as Figure 1-Figure 3 As shown, the screening assembly 4 also includes a spring 46 and a sliding plate 47. The two sliding plates 47 are slidably connected to the sliding frame 43. The cross-section of the sliding plate 47 is "L"-shaped. The two ends of the two springs 46 are fixedly connected to the sliding frame 43 and the two sliding plates 47 respectively.

[0028] Further, such as Figure 4 As shown, the vibration assembly 5 also includes a dual-axis motor 51 and a rotating column 52. The dual-axis motor 51 is fixed to the fixed box 45 by bolts, and the two rotating columns 52 are fixed to the output shaft of the dual-axis motor 51 by bolts. The two turntables 53 are respectively fixedly connected to the two rotating columns 52, and the two turntables 53 are symmetrical with the dual-axis motor 51 as the axis.

[0029] Further, such as Figure 1-Figure 4 As shown, the vibration assembly 5 further includes a second spring 56 , and two ends of a plurality of second springs 56 are fixedly connected to the sliding frame 43 and the fixed box 45 , respectively. The second springs 56 are distributed in a linear array on the sliding frame 43 .

[0030] Further, such as Figure 1-Figure 3As shown, a fixed plate 8 is provided on the support frame 1, and the two fixed plates 8 are fixedly connected to the two rotating rods 41 respectively. The spacing between the two fixed rods 42 located on the same rotating rod 41 is equal to the length of the fixed plate 8, and the two rotating columns 52 are rotatably connected to the two fixed plates 8 respectively.

[0031] The specific working method is as follows: the wood is placed on the conveyor belt 2, which transports the wood to the chipper 3 for chipping. After chipping, the wood chips fall onto the screen 44, and the dual-axis motor 51 is started. Its output shaft drives the rotating column 52 to rotate, and the turntable 53 rotates accordingly, and the connecting rod 54 on it also starts to rotate. When the connecting rod 54 meets the fixed block 55, it pushes the fixed block 55 to move up, driving the sliding frame 43 and the screen 44 to move up. As the connecting rod 54 rotates, the fixed block 55 continues to move up. When the connecting rod 54 falls off the fixed block 55, the fixed block 55 moves up. Finally, due to the action of the second spring 56, the sliding frame 43 will be pulled down and reset. Since the connecting rod 54 is in periodic motion, the fixed block 55 will be driven to move periodically, and the screen 44 will also move up and down periodically, thereby achieving a vibration effect and accelerating the screening speed. When different types of screens 44 need to be replaced, the two sliding plates 47 are pushed to move away from the sliding frame 43. When the sliding plates 47 no longer resist the screen 44, the screen 44 can be pulled out of the sliding frame 43 for replacement, making the device more practical.

[0032] The technical means disclosed in the present invention are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacements of the above technical features. Matters not covered in the present invention belong to the common knowledge of those skilled in the art.

Claims

1. A wood chip screening device, comprising a support frame (1), a conveyor belt (2) provided on the support frame (1), and a chipper (3) fixedly connected to the support frame (1), characterized in that: A screening assembly (4) and a vibration assembly (5) are provided on the support frame (1). The screening assembly (4) comprises a rotating rod (41), a fixed rod (42), a sliding frame (43), a screen (44) and a fixed box (45). The two rotating rods (41) are hinged on the support frame (1). The four fixed rods (42) are respectively fixedly connected to the two rotating rods (41). The sliding frame (43) is slidably connected to the four fixed rods (42). The screen (44) is slidably connected in the sliding frame (43). The fixed box (45) is fixedly connected to the four fixed rods (42). The vibration assembly (5) comprises a turntable (53), a connecting rod (54) and a fixed block (55). The two turntables (53) are respectively provided on the two rotating rods (41). The two connecting rods (54) are respectively fixedly connected to the two turntables (53). The two fixed blocks (55) are fixedly connected to the sliding frame (43).

2. A wood chip screening device according to claim 1, characterized in that: The support frame (1) is provided with a rotating block (6) and an electric telescopic rod (7), the two rotating blocks (6) are hinged to the support frame (1), one end of the two electric telescopic rods (7) are respectively fixedly connected to the two rotating blocks (6), and the other ends of the two electric telescopic rods (7) are respectively hinged to the two rotating rods (41).

3. A wood chip screening device according to claim 1, characterized in that: The screening assembly (4) further comprises a spring (46) and a sliding plate (47), wherein the two sliding plates (47) are slidably connected to the sliding frame (43), and the two ends of the two springs (46) are fixedly connected to the sliding frame (43) and the two sliding plates (47), respectively.

4. A wood chip screening device according to claim 1, characterized in that: The vibration assembly (5) further comprises a dual-axis motor (51) and a rotating column (52), wherein the dual-axis motor (51) is fixedly connected to the fixed box (45), the two rotating columns (52) are fixedly connected to the output shafts of the dual-axis motor (51), and the two rotating disks (53) are respectively fixedly connected to the two rotating columns (52).

5. The wood chip screening device according to claim 1, characterized in that: The vibration assembly (5) further comprises a second spring (56), and two ends of a plurality of the second springs (56) are respectively fixedly connected to the sliding frame (43) and the fixed box (45).

6. A wood chip screening device according to claim 4, characterized in that: A fixing plate (8) is provided on the support frame (1), the two fixing plates (8) are respectively fixedly connected to the two rotating rods (41), and the two rotating columns (52) are respectively rotatably connected to the two fixing plates (8).

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