Wood chip screening machine for medium-density fiberboard processing

Abstract

The utility model discloses a medium density fiberboard processing wood chip screening machine which comprises a base, the base is connected with a screening assembly used for screening raw materials for medium density fiberboard processing wood chips, and the screening assembly comprises a screening piece which is installed on the base and used for screening out impurities in raw material mixtures, the screening part comprises a rotating cylinder rotationally connected to the right end of the upper side of the base, a filtering cylinder used for filtering impurities is installed on the left side of the rotating cylinder, and a recycling box used for receiving the impurities is placed on the portion, corresponding to the lower side of the filtering cylinder, of the upper side of the base. According to the wood chip screening machine for medium-density fiberboard processing, the air cylinder assembly is matched with the push plate, materials retained in the rotating cylinder and the filter cylinder are guided out, the material recovery rate is increased, and the water pump, the three-way valve, the corrugated pipe, the water spraying ring, the branch pipe and the water spraying strip are matched with one another, so that the inner wall and the outer surface of the filter cylinder are cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to middle density fiberboard processing technical field, concretely to a kind of middle density fiberboard processing wood chip screening machine. BACKGROUND

[0002] In the middle density fiberboard processing process, the wood chip screening machine is needed to screen the wood chip, according to the authorized announcement No.CN214975529U, a kind of middle density fiberboard processing wood chip screening machine, including base, the base has two, two the base is connected by splash-proof cover, the splash-proof cover one end is fixedly installed with feed port, the splash-proof cover upper surface is fixedly installed with driving motor, realize the function of convenient screening, and single structure, easy to operate, convenient to use, as described above patent, most of the wood chip screening machine for middle density fiberboard processing is difficult to clean and dredge the residues in the filter cylinder inner and outer surface and filter hole after use, increase subsequent processing steps, while affecting subsequent filtration operation. SUMMARY

[0003] In view of the deficiencies of the prior art, the utility model provides a kind of middle density fiberboard processing wood chip screening machine, solve the problem that most of the device is difficult to clean and dredge the residues in the filter end inner and outer surface, affect subsequent filtration etc.

[0004] To achieve the above object, the utility model is realized by the following technical scheme: a kind of middle density fiberboard processing wood chip screening machine, including base, the base is connected with the screening assembly for the raw material screening of middle density fiberboard processing wood chip, the screening assembly includes:

[0005] Screening element, install on base for impurity in raw material mixture is screened out, the screening element includes rotating cylinder connected on the right side of the upper side of base, the rotating cylinder left side is installed with the filter cylinder for filtering impurity, the upper side of base is placed with the recovery box for receiving impurity corresponding to the lower side of filter cylinder, the base is connected with motor for providing power for rotating cylinder rotation, the upper side of base is close to filter cylinder and is equipped with water spraying strip for spraying cleaning;

[0006] Cleaning element, install on base for cleaning impurities in filter cylinder, the cleaning element includes cylinder assembly horizontally arranged on the left end of the upper side of base, the cylinder assembly right side elongated end is installed with the push plate for stripping material in filter cylinder inner wall, the base is connected with water supply element for filter cylinder inner wall cleaning and water supply of water spraying strip.

[0007] Preferably, the screening element further comprises a gear ring assembly for assisting the motor to drive the rotating cylinder, the gear ring assembly is meshed with each other by the inner gear and the gear ring, the inner gear of the gear ring assembly is coaxially fixedly connected with the motor output end, the inner ring of the gear ring assembly is coaxially fixedly connected with the rotating cylinder, and the upper side of the base is provided with a slot matched with the rotating cylinder and the filter cylinder respectively.

[0008] Preferably, the screening element further comprises a vibrating element for filtering the filter cylinder, the vibrating element comprises two groups of cams in rotating connection with the base and fixedly connected with the motor output end, the upper side of the two groups of cams is matched with a moving frame in sliding connection with the base, the upper side of the moving frame is provided with a spring assembly connected with the base and used for providing vibration, and the top of the moving frame is provided with an anti-dropping block.

[0009] Preferably, the edge of the push plate is matched with the inner wall of the filter cylinder, the middle part of the push plate is provided with a circular groove for guiding the material, and the cleaning element further comprises a feeding pipe mounted on the base and used for connecting with the external feeding element, and the feeding pipe is matched with the circular groove.

[0010] Preferably, the water supply element comprises a water pump mounted on the base and used for pumping water, a three-way valve for controlling water flow is mounted on the water pumping end of the upper side of the water pump, a corrugated pipe is mounted on the right side of the three-way valve, a water spraying ring for spraying and cleaning the inner wall of the filter cylinder and supplied with water by the corrugated pipe is arranged on the right edge of the push plate, and a branch pipe fixedly connected with the water spraying strip is arranged on the upper side of the three-way valve.

[0011] Preferably, the water pumping pipe is mounted on the water pumping end of the lower side of the water pump, a plurality of first water spraying holes are arranged on the right side of the water spraying ring, a plurality of second water spraying holes are arranged on the bottom of the water spraying strip, and a cleaning groove is arranged on the side of the base close to the water spraying strip.

[0012] The utility model provides a kind of wood chip screening machine for medium density fiberboard processing.Compared with prior art, it has the following beneficial effects:

[0013] (1), the wood chip screening machine for medium density fiberboard processing, by setting cleaning element in device, let cylinder assembly and push plate cooperate, guide out treatment to the material retained in rotating cylinder and filter cylinder, improve material recovery rate, let water pump, three-way valve, corrugated pipe, water spraying ring, branch pipe, water spraying strip cooperate with each other, realize the cleaning treatment to the inner wall and outer surface of filter cylinder, and have the dredging of the retained material in filter hole in filter cylinder, and the influence of subsequent filtration operation caused by retention.

[0014] (2), the medium density fiberboard processing wood chip screening machine, through setting vibration piece in the device, in the motor operation process, cam rotates with motor output end, cam and moving frame, spring assembly cooperation, spring in spring assembly reciprocating, reciprocating spring provides power for base vibration, promotes material screening in filter cartridge, improves the screening efficiency of device, and promotes water shake off after subsequent filter cartridge is cleaned by water. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the sectional view of the utility model;

[0016] Figure 2 It is the enlarged view of the vibration piece of the utility model;

[0017] Figure 3 It is the enlarged view of the gear ring assembly of the utility model;

[0018] Figure 4 It is the enlarged view of the cleaning piece of the utility model;

[0019] Figure 5 It is the perspective view of the utility model.

[0020] In the drawing: 1, base; 2, screening piece; 21, motor; 22, gear ring assembly; 23, rotating cylinder; 24, filter cartridge; 25, recycling box; 26, vibration piece; 261, cam; 262, moving frame; 263, anti-drop block; 264, spring assembly; 27, water spraying strip; 3, cleaning piece; 31, cylinder assembly; 32, push plate; 33, feed pipe; 34, water supply piece; 341, water pump; 342, three-way valve; 343, corrugated pipe; 344, water spraying ring; 345, branch pipe. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor are within the protection scope of the utility model.

[0022] Reference Figures 1-5 The utility model provides the following two technical schemes:

[0023] The first embodiment is a wood chip screening machine for processing medium-density fiberboard, which comprises a base 1 connected with a screening assembly for screening raw materials for processing wood chips of medium-density fiberboard. The screening assembly comprises a screening element 2 installed on the base 1 for screening impurities in the raw material mixture. The screening element 2 comprises a rotating cylinder 23 rotatably connected to the right upper side of the base 1. A filter cylinder 24 for filtering impurities is installed on the left side of the rotating cylinder 23. A recovery box 25 for receiving impurities is placed on the upper side of the base 1 corresponding to the lower side of the filter cylinder 24. An electric motor 21 is connected to the base 1 for providing power for the rotation of the rotating cylinder 23. A water spraying strip 27 for spraying cleaning is provided on the upper side of the base 1 near the filter cylinder 24.

[0024] A cleaning element 3 is installed on the base 1 for cleaning the impurities retained inside and outside the filter cylinder 24. The cleaning element 3 comprises a gas cylinder assembly 31 horizontally arranged on the left upper side of the base 1. A push plate 32 for stripping the material on the inner wall of the filter cylinder 24 is installed on the right elongated end of the gas cylinder assembly 31. A water supply element 34 is connected to the base 1 for cleaning the inner wall of the filter cylinder 24 and supplying water to the water spraying strip 27. The screening element 2 further comprises a gear and ring assembly 22 for assisting the electric motor 21 to drive the rotating cylinder 23. The inner gear and ring of the gear and ring assembly 22 are meshed with each other. The inner gear of the gear and ring assembly 22 is coaxially fixedly connected to the output end of the electric motor 21. The inner ring of the gear and ring assembly 22 is coaxially fixedly connected to the rotating cylinder 23. The upper side of the base 1 is provided with a slot respectively matching with the rotating cylinder 23 and the filter cylinder 24. A discharging slot is provided between the filter cylinder 24 and the recovery box 25 on the base 1 and is in communication with the slot.

[0025] The edge of the push plate 32 matches with the inner wall of the filter cylinder 24. A circular groove for material introduction is provided in the middle of the push plate 32. The cleaning element 3 further comprises a feed pipe 33 installed on the base 1 for connecting with the external material supply element. The feed pipe 33 matches with the circular groove. The water supply element 34 comprises a water pump 341 installed on the base 1 for pumping water. A three-way valve 342 for controlling water flow is installed on the upper side of the water pump 341. A corrugated pipe 343 is installed on the right side of the three-way valve 342. A water spraying ring 344 for spraying cleaning of the inner wall of the filter cylinder 24 and supplied with water by the corrugated pipe 343 is provided on the right edge of the push plate 32. A branch pipe 345 fixedly connected with the water spraying strip 27 is provided on the upper side of the three-way valve 342. A water pumping pipe is installed on the lower side of the water pump 341. A plurality of first water spraying holes are provided on the right side of the water spraying ring 344. A plurality of second water spraying holes are provided on the bottom of the water spraying strip 27. A cleaning slot is provided on the side of the base 1 near the water spraying strip 27. A plurality of filter holes are provided on the inner side of the filter cylinder 24. The gas cylinder assembly 31 cooperates with the push plate 32 to discharge the retained material in the rotating cylinder 23 and the filter cylinder 24, thereby reducing the retention of material. The water pump 341, the three-way valve 342, the corrugated pipe 343, the water spraying ring 344, the branch pipe 345, and the water spraying strip 27 cooperate with each other to realize the cleaning of the inner wall and the outer surface of the filter cylinder 24 and to dredge the retained material in the filter holes of the filter cylinder 24.

[0026] The second embodiment has the main difference from the first embodiment as follows:

[0027] The screening member 2 further comprises a vibrating member 26 for filtering the auxiliary filtering cylinder 24, the vibrating member 26 comprises two groups of cams 261 rotatably connected with the base 1 and fixedly connected with the output end of the motor 21, the upper side of the two groups of cams 261 is attached with a moving frame 262 slidably connected with the base 1, the upper side of the moving frame 262 is installed with a spring assembly 264 connected with the base 1 and used for providing vibration, and the top of the moving frame 262 is installed with an anti-disengagement block 263;

[0028] During the operation of the motor 21, the cam 261 rotates with the output end of the motor 21, and the protruding end of the cam 261 passes through the moving frame 262 to push it upwards, the moving frame 262 that moves upwards compresses the springs in the spring assembly 264, and after the protruding end of the cam 261 is separated from the moving frame 262, the moving frame 262 is reset under the promotion of the springs in the spring assembly 264, the reciprocating springs in the spring assembly 264 provide power for the vibration of the base 1, thereby promoting the screening of the materials in the filtering cylinder 24, and after the subsequent filtering cylinder 24 is cleaned by water, the water is shaken off.

[0029] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art, and the model parameters of each electric appliance are not specifically limited, and conventional equipment can be used.

[0030] In use, the user introduces the wood flake mixture for medium density fiberboard processing into the filtering cylinder 24 through the feeding pipe 33 and the circular groove in the middle of the push plate 32, starts the motor 21, and the motor 21 drives the rotating cylinder 23 and the filtering cylinder 24 to rotate through the gear and ring assembly 22, at the same time, under the action of the gear and ring assembly 22, the cam 261 rotates and cooperates with the spring assembly 264 to drive the moving frame 262 and the anti-disengagement block 263 to reciprocate, and the spring assembly 264 reciprocates, the reciprocating spring assembly 264 drives the base 1 to vibrate, the filtering cylinder 24 cooperates with the vibrating base 1 to filter the mixture, and the filtered material falls into the recycling box 25, after the material is filtered, the position of the push plate 32 is adjusted through the cylinder assembly 31 to make the push plate 32 push the screened material in the filtering cylinder 24 and the rotating cylinder 23 out, when the filtering operation is completed, the water pump 341 is started, the water pump 341 draws water from the outside and sprays the water through the three-way valve 342, the corrugated pipe 343, and the water spraying ring 344, the position of the push plate 32 is adjusted to make the water spraying ring 344 spray water to clean the inner surface of the filtering cylinder 24 and the rotating cylinder 23, and then the push plate 32 and the water spraying ring 344 are reset, the three-way valve 342 is reversed, at this time, the water is sprayed through the branch pipe 345 and the water spraying strip 27, the water spraying strip 27 sprays water to clean the outer surface of the rotating filtering cylinder 24 and plays a dredging role.

[0031] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0032] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A MDF chip screening machine comprising a base (1), characterized in that: The base (1) is connected with a screening assembly for screening raw materials for processing wood chips of medium density fiberboard, the screening assembly comprises: The screening element (2) is installed on the base (1) for screening impurities in the raw material mixture, the screening element (2) comprises a rotating cylinder (23) rotatably connected to the right upper side of the base (1), a filter cylinder (24) for filtering impurities is installed on the left side of the rotating cylinder (23), a recovery box (25) for receiving impurities is placed on the upper side of the base (1) corresponding to the lower side of the filter cylinder (24), a motor (21) for providing power for the rotation of the rotating cylinder (23) is connected to the base (1), and a water spraying strip (27) for spraying cleaning is arranged on the upper side of the base (1) close to the filter cylinder (24); The cleaning element (3) is installed on the base (1) for cleaning the impurities retained inside and outside the filter cylinder (24), the cleaning element (3) comprises a gas cylinder assembly (31) horizontally arranged on the left upper side of the base (1), a push plate (32) for stripping the material on the inner wall of the filter cylinder (24) is installed on the right elongated end of the gas cylinder assembly (31), and a water supply element (34) for cleaning the inner wall of the filter cylinder (24) and supplying water to the water spraying strip (27) is connected to the base (1).

2. A machine for processing wood chips for medium density fiberboard according to claim 1, characterized in that: The screening element (2) further comprises a gear and tooth ring assembly (22) for assisting the motor (21) to drive the rotating cylinder (23), the inner gear and the tooth ring of the gear and tooth ring assembly (22) are meshed with each other, the inner gear of the gear and tooth ring assembly (22) is coaxially fixedly connected with the output end of the motor (21), the inner ring of the gear and tooth ring assembly (22) is coaxially fixedly connected with the rotating cylinder (23), and the upper side of the base (1) is provided with a slot which is respectively matched with the rotating cylinder (23) and the filter cylinder (24), and a discharging groove which is in communication with the slot is arranged between the filter cylinder (24) and the recovery box (25) close to the base (1).

3. A machine for processing wood chips for medium density fiberboard according to claim 2, characterized in that: The screening element (2) further comprises a vibrating element (26) for assisting the filter cylinder (24) in filtering, the vibrating element (26) comprises two groups of cams (261) which are rotatably connected with the base (1) and fixedly connected with the output end of the motor (21), the upper side of the two groups of cams (261) is matched with a moving frame (262) which is slidingly connected with the base (1), the upper side of the moving frame (262) is installed with a spring assembly (264) which is connected with the base (1) and used for providing vibration, and the top of the moving frame (262) is installed with an anti-falling block (263).

4. A wood chip screening machine for processing medium density fiberboard according to claim 1, characterized in that: The edge of the push plate (32) is matched with the inner wall of the filter cylinder (24), the middle part of the push plate (32) is provided with a circular groove for guiding the material, and the cleaning element (3) further comprises a feeding pipe (33) which is installed on the base (1) and used for connecting with the external feeding element, and the feeding pipe (33) is matched with the circular groove.

5. A wood chip screening machine for processing medium density fiberboard according to claim 1, characterized in that: The water supply part (34) comprises a water pump (341) installed on the base (1) for pumping water, a three-way valve (342) for controlling water flow direction is installed on the upper water discharge end of the water pump (341), a bellows (343) is installed on the right side of the three-way valve (342), a water spraying ring (344) for spraying and cleaning the inner wall of the filter cylinder (24) and supplied with water by the bellows (343) is arranged on the right edge of the push plate (32), and a branch pipe (345) fixedly connected with the water spraying strip (27) is arranged on the upper side of the three-way valve (342).

6. A wood chip screening machine for processing medium density fibre board according to claim 5, characterized in that: A water pumping pipe is installed on the lower water pumping end of the water pump (341), a plurality of first water spraying holes are arranged on the right side of the water spraying ring (344), a plurality of second water spraying holes are arranged on the bottom of the water spraying strip (27), and a cleaning groove is arranged on the side of the base (1) close to the water spraying strip (27).

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