Automatic wood chip screening and collecting device

Abstract

The utility model relates to the technical field of papermaking production, and discloses an automatic wood chip screening and collecting device which comprises an operation box, a screen drum arranged in the operation box, a stirring component arranged in the screen drum, a driving component arranged in the operation box and used for driving the screen drum and the stirring component and a supporting assembly. The supporting assembly is located at the end, away from the driving component, of the screen drum and used for supporting the screen drum, the screen drum and the stirring component move in the opposite directions through the driving component, then wood chips in the screen drum collide and rub with each other, agglomerated mud attached to the surfaces of the wood chips is collided, and therefore the mud is broken and separated from the surfaces of the wood chips. Mud particles and dust are filtered out through the screen holes, mud attached to the surfaces of wood chips is separated from the wood chips, the mud mixed into the wood chips is effectively reduced, the influence of the mud on products subsequently processed by the wood chips is reduced, and the product performance and the product quality of the products subsequently processed by the wood chips are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paper production, in particular to an automatic screening and collecting device for wood chips. Background Art

[0002] During the wood processing process, if wood chips enter the processing link directly without screening, more waste and pollutants may be generated.

[0003] Patent publication number CN217888644U discloses an automatic screening and collecting device for wood chips, which drives the screening mechanism to vibrate through a vibration mechanism, thereby automatically screening out fine wood chips and broken wood residues in the wood chips in the screening mechanism, and the screening mechanism is inclined on the supporting mechanism, which is conducive to screening the wood chips.

[0004] Since trees grow in an environment with a lot of soil, mud will adhere to the surface of the wood chips during the process of being cut from the trees, transported or stored. The mud attached to the surface of the wood chips cannot be removed by vibration, so the wood chips with mud on the surface will remain in the processed products during the subsequent processing, causing the products to be easily affected by moisture and affecting the product's performance. Utility Model Content

[0005] In view of the problem that the above-mentioned vibration screening cannot remove the mud attached to the surface of the wood chips, thus affecting the performance of the products processed from the wood chips, the present utility model is proposed.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: an automatic screening and collecting device for wood chips, comprising a work box and a door panel arranged at the opening of the work box, a screen cylinder arranged in the work box, a stirring component arranged in the screen cylinder, and a driving component arranged in the work box for driving the screen cylinder and the stirring component;

[0007] It also includes a support assembly, which is arranged in the working box and located at an end of the screen cylinder away from the driving component, and is used to support the screen cylinder.

[0008] As a preferred solution of the automatic screening and collecting device for wood chips of the utility model, the driving component includes a mounting shaft, one end of the mounting shaft passes through the working box, a sleeve is arranged at one end of the mounting shaft, a gear is arranged at one end of the sleeve, a bevel gear 1 is arranged at the end of the sleeve away from the gear, a transverse axis is arranged at one end of the mounting shaft away from the sleeve, bevel gear 2 is arranged at both ends of the transverse axis, and bevel gear 3 is arranged at one end of the mounting shaft away from the transverse axis and the sleeve.

[0009] As a preferred solution of the automatic screening and collecting device for wood chips described in the utility model, wherein: the driving component also includes a limit plate, the limit plate is located at the end of the installation shaft away from the sleeve, the gear and the bevel gear three, a limit portion is provided at one end of the limit plate, a rack is provided on the limit portion, an eccentric wheel is provided at one end of the rack, the rack is hinged to the eccentric part of the eccentric wheel, a center axis is provided on a side of the eccentric wheel away from the rack, a fixed seat is provided on the inner wall of the work box, the center axis is rotatably provided on the fixed seat, a motor is provided on the outer wall of the work box, and the motor output shaft is coaxially connected to the center axis.

[0010] As a preferred solution of the automatic wood chip screening and collecting device of the utility model, a fixing frame is arranged in the middle area of ​​the shaft sleeve, one end of the screen drum is connected to the fixing frame, and a screen hole array is arranged on the side wall of the screen drum.

[0011] As a preferred solution of the automatic screening and collecting device for wood chips of the utility model, the stirring component includes a rotating disk, the rotating disk is connected to the bevel gear three, at least three stirring rollers are arranged on a side of the rotating disk away from the bevel gear three, a plurality of stirring blades are arranged on the outside of the stirring roller, and an array of anti-blocking grooves are arranged on the end of the stirring blade away from the stirring roller.

[0012] As a preferred solution of the automatic wood chip screening and collection device of the utility model, the support assembly includes a poor arc block, a groove is opened in the poor arc block, a plurality of rollers are arranged in the groove, and the plurality of rollers are in contact with the outer side wall of the screen cylinder.

[0013] As a preferred solution of the automatic screening and collecting device for wood chips described in the utility model, wherein: a water inlet trough is opened at the bottom of one side of the working box, a dust removal component is arranged at the water inlet trough, the dust removal component includes a water box, a box cover arranged at the opening of the water box, the water box and the box cover form a water inlet cavity, the water box has a water inlet interface at one end away from the box cover, a water pump is connected to the end of the water inlet interface away from the water box, the water inlet interface is connected to the inside of the water inlet cavity, a plurality of water outlet holes are arranged in an array on the box cover, the water outlet holes are connected to the inside of the water inlet cavity, and the cross-sectional area of ​​the water outlet holes gradually decreases along the water flow direction.

[0014] Beneficial effects of the utility model:

[0015] 1. The driving component makes the screen drum and the stirring component move in opposite directions, so that the wood chips inside the screen drum collide and rub against each other, so that the mud attached to the surface of the wood chips is impacted, broken and separated from the surface of the wood chips, and the mud particles and dust are filtered out by the screen holes, so that the mud attached to the surface of the wood chips is separated from the wood chips, which effectively reduces the mud mixed in the wood chips, reduces the impact of the mud on the products processed from the wood chips, and improves the product performance and product quality of the products processed from the wood chips;

[0016] 2. By setting a dust removal component on the working box and using the dust removal component to inject water into the bottom of the water tank, the dust raised when screening the mud can be absorbed by the water body, thereby achieving the effect of dust removal, preventing the separated dust from adhering to the surface of the wood chips again, and further improving the screening effect of the wood chips. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0018] Figure 1 It is a schematic diagram of the overall structure of the automatic wood chip screening and collecting device of the utility model.

[0019] Figure 2 It is a structural schematic diagram of the support assembly of the automatic wood chip screening and collection device of the utility model.

[0020] Figure 3 It is a partial half-section structural schematic diagram of the automatic wood chip screening and collecting device of the utility model.

[0021] Figure 4 This utility model is a wood chip automatic screening and collecting device Figure 3 Schematic diagram of the structure enlarged at point A in the middle.

[0022] Figure 5 It is a structural schematic diagram of a half-section view of the screen cylinder of the automatic screening and collecting device for wood chips of the utility model.

[0023] Figure 6 This utility model is a wood chip automatic screening and collecting device Figure 5 Schematic diagram of the enlarged structure at point B.

[0024] Figure 7 It is a structural schematic diagram of the stirring component of the automatic wood chip screening and collecting device of the utility model.

[0025] Figure 8It is a structural schematic diagram of the dust removal component of the automatic wood chip screening and collection device of the utility model.

[0026] Description of reference numerals:

[0027] 1. Operation box; 11. Screen drum; 111. Fixed frame; 12. Fixed seat; 13. Dust removal assembly; 14. Water box; 15. Box cover; 151. Water outlet; 16. Water inlet interface;

[0028] 2. stirring component; 21. rotating disk; 22. stirring roller; 23. stirring blade; 24. anti-blocking groove;

[0029] 3. Driving component; 31. Mounting shaft; 32. Gear; 33. Bevel gear 1; 34. Horizontal shaft; 35. Bevel gear 2; 36. Bevel gear 3; 37. Limiting plate; 371. Limiting part; 372. Rack; 373. Eccentric wheel;

[0030] 4. Support assembly; 41. Inferior arc block; 42. Roller. DETAILED DESCRIPTION

[0031] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0032] Example 1

[0033] Reference Figure 1-7 , which is the first embodiment of the utility model, provides an automatic screening and collecting device for wood chips, the automatic screening and collecting device for wood chips comprises a work box 1 and a door panel arranged at the opening of the work box 1, a screen drum 11 arranged in the work box 1, a stirring component 2 arranged in the screen drum 11, and a driving component 3 arranged in the work box 1 for driving the screen drum 11 and the stirring component 2;

[0034] It also includes a support assembly 4 , which is disposed in the working box 1 and is located at one end of the screen drum 11 away from the driving component 3 , and is used to support the screen drum 11 .

[0035] The driving component 3 includes a mounting shaft 31, one end of which passes through the working box 1, a sleeve arranged at one end of the mounting shaft 31, a gear 32 arranged at one end of the sleeve, a bevel gear 1 33 arranged at the end of the sleeve away from the gear 32, a transverse shaft 34 arranged at the end of the mounting shaft 31 away from the sleeve, bevel gears 2 35 arranged at both ends of the transverse shaft 34, and bevel gears 36 arranged at one end of the mounting shaft 31 away from the transverse shaft and the sleeve. The driving component 3 also includes a limit plate 37, which is located at one end of the mounting shaft 31 away from the sleeve, the gear and the bevel gear 3 36, and a limit portion 371 is arranged at one end of the limit plate 37. A rack 372 is placed on the limiting portion 371, and an eccentric wheel 373 is arranged at one end of the rack 372. The rack 372 and the eccentric wheel 373 are hinged at the eccentric portion. A central axis is arranged on a side of the eccentric wheel 373 away from the rack 372. A fixed seat 12 is arranged on the inner wall of the working box 1. The central axis is rotatably arranged on the fixed seat 12. A motor is arranged on the outer wall of the working box 1. The motor output shaft is coaxially connected to the central axis. A fixed frame 111 is arranged in the middle area of ​​the shaft sleeve. One end of the screen drum 11 is connected to the fixed frame 111. The side wall array of the screen drum 11 is provided with sieve holes, and the sieve holes are used to filter out mud particles separated from the wood chips.

[0036] The stirring component 2 includes a rotating disk 21, which is connected to the bevel gear three 36. At least three stirring rollers 22 are arranged on the side of the rotating disk 21 away from the bevel gear three 36. A plurality of stirring blades 23 are arranged on the outer side of the stirring roller 22. An array of anti-blocking grooves 24 are arranged on the end of the stirring blade 23 away from the stirring roller 22. The anti-blocking grooves 24 give way to the wood chips to a certain extent to avoid the accumulation and blockage of wood chips during the screening process. At the same time, the number of collisions between the wood chips and the contact area during the collision are increased, thereby improving the mud removal efficiency.

[0037] The support assembly 4 includes a minor arc block 41, in which a groove is opened, and a plurality of rollers 42 are arranged in the groove. The plurality of rollers 42 are in contact with the outer wall of the screen drum 11, and the rollers 42 are rotated to reduce the resistance of the screen drum 11 during rotation, and at the same time, support force is provided to the screen drum 11, thereby ensuring the stability of the screen drum 11 during rotation.

[0038] During use, first pull the handle to rotate the door panel, then place the wood chips to be screened in the screen drum 11, then close the door panel, start the motor, and turn on the water pump;

[0039] At this time, the motor output shaft will drive the eccentric wheel 373 to rotate, and the eccentric wheel 373 will be used to push the rack 372, so that the rack 372 drives the gear 32, and the limit plate 37 will always keep the rack 372 engaged with the gear 32, and then the gear 32 will drive the bevel gear 1 33 to rotate, so that the fixed frame 111 drives the screen drum 11 to rotate, and the supporting component will support the screen drum 11. At the same time, the bevel gear 1 33 will drive the bevel gear 2 35, and the bevel gear 2 35 will drive the bevel gear 3 36 to rotate, so that the bevel gear 3 36 drives the stirring component 2 to operate. At this time, the stirring blade 23 will continuously move the wood chips, increase the number of contacts between the wood chips, and improve the effect of removing mud. At this time, the stirring component 2 and the screen drum 11 move in opposite directions to further disturb the wood chips in the screen drum 11, and further improve the effect of removing mud.

[0040] After the eccentric wheel 373 rotates through the first half cycle, the second half cycle of the eccentric wheel 373 will pull the rack 372, so that the stirring component 2 and the screen drum 11 move in the opposite direction compared to before, so that the wood chips in the screen drum 11 are vibrated, thereby accelerating the removal rate of the mud attached to the wood chips.

[0041] Example 2

[0042] Reference Figure 8 , which is the second embodiment of the utility model, and this embodiment is different from the first embodiment in that:

[0043] A water inlet groove is provided at the bottom of one side of the work box 1, and a dust removal component 13 is provided at the water inlet groove. The dust removal component 13 includes a water box 14, a box cover 15 provided at the opening of the water box 14, and the water box 14 and the box cover 15 form a water inlet cavity. A water inlet interface 16 at one end of the water box 14 away from the box cover 15 is connected to a water pump at one end of the water inlet interface 16 away from the water box 14. The water pump is connected to the water tank and guides the water in the water tank to the water inlet interface 16, so that the water enters the water inlet cavity through the water inlet interface 16. The water inlet interface 16 is connected to the inside of the water inlet cavity. A plurality of water outlet holes 151 are arranged on the box cover 15. The water outlet holes 151 are connected to the inside of the water inlet cavity. The cross-sectional area of ​​the water outlet holes 151 gradually decreases along the flow direction of the water body, so that the water body is accelerated to a certain extent and sprayed out from the plurality of water outlet holes 151, thereby preventing mud particles from mixing with the water body to become mud and causing the water outlet holes 151 to be blocked. At the same time, the mud is also flushed, thereby keeping the inside of the working box 1 clean and preventing the wood chips from being contaminated by secondary dirt.

[0044] During use, the water in the water tank is directed from the water inlet interface 16 to the water inlet cavity by a water pump. When the water fills the water filling cavity, the water is discharged through a plurality of water outlet holes 151, so that a layer of water is formed at the bottom of the working box 1. The water layer is used to absorb the mud particles at the screening point of the screen drum 11 and the dust flying in the working box 1, so as to prevent the dust from adhering to the surface of the wood chips again.

[0045] In addition, when water is discharged from the plurality of water outlet holes 151, the water is accelerated and sprayed out due to the reduction of the flow area of ​​the water along the water outlet holes 151, thereby preventing the mud or dust screened by the screen drum 11 from mixing with the water to become mud, thereby blocking the water outlet holes 151, thereby ensuring the normal operation of the water outlet holes 151.

[0046] The remaining structures are the same as those of Example 1.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. An automatic screening and collecting device for wood chips, comprising a work box (1) and a door panel arranged at the opening of the work box (1), characterized in that: A sieve drum (11) disposed in the operation box (1), a stirring component (2) disposed in the sieve drum (11), and a driving component (3) disposed in the operation box (1) for driving the sieve drum (11) and the stirring component (2); It also comprises a support assembly (4), wherein the support assembly (4) is arranged in the working box (1), and the support assembly (4) is located at an end of the screen drum (11) away from the driving component (3), and the support assembly (4) is used to support the screen drum (11).

2. The automatic screening and collecting device for wood chips according to claim 1 is characterized in that: The driving component (3) comprises a mounting shaft (31), one end of the mounting shaft (31) passes through the working box (1), a sleeve arranged at one end of the mounting shaft (31), a gear (32) arranged at one end of the sleeve, a bevel gear (33) arranged at an end of the sleeve away from the gear (32), a transverse axis (34) arranged at an end of the mounting shaft (31) away from the sleeve, bevel gears (35) arranged at both ends of the transverse axis (34), and bevel gears (36) arranged at one end of the mounting shaft (31) away from the transverse axis and the sleeve.

3. The automatic screening and collecting device for wood chips according to claim 2 is characterized in that: The driving component (3) also includes a limit plate (37), the limit plate (37) is located at one end of the installation shaft (31) away from the sleeve, the gear and the bevel gear three (36), one end of the limit plate (37) is provided with a limit portion (371), a rack (372) is provided on the limit portion (371), an eccentric wheel (373) is provided at one end of the rack (372), the rack (372) is hinged to the eccentric wheel (373) at an eccentric point, a central axis is provided on a side of the eccentric wheel (373) away from the rack (372), a fixed seat (12) is provided on the inner wall of the working box (1), the central axis is rotatably provided on the fixed seat (12), and a motor is provided on the outer wall of the working box (1), and the output shaft of the motor is coaxially connected with the central axis.

4. The automatic screening and collecting device for wood chips according to claim 2 is characterized in that: A fixing frame (111) is arranged in the middle area of ​​the shaft sleeve, one end of the sieve cylinder (11) is connected to the fixing frame (111), and a sieve hole array is arranged on the side wall of the sieve cylinder (11).

5. The automatic screening and collecting device for wood chips according to claim 2 is characterized in that: The stirring component (2) comprises a rotating disk (21), the rotating disk (21) being connected to the bevel gear three (36), at least three stirring rollers (22) being arranged on a side of the rotating disk (21) away from the bevel gear three (36), a plurality of stirring blades (23) being arranged on the outside of the stirring roller (22), and an array of anti-blocking grooves (24) being arranged on one end of the stirring blade (23) away from the stirring roller (22).

6. The automatic screening and collecting device for wood chips according to claim 1 is characterized in that: The support assembly (4) comprises a poor arc block (41), a groove is provided in the poor arc block (41), a plurality of rollers (42) are arranged in the groove, and the plurality of rollers (42) are in contact with the outer side wall of the screen drum (11).

7. The automatic screening and collecting device for wood chips according to claim 1 is characterized in that: A water inlet groove is provided at the bottom of one side of the operation box (1), and a dust removal component (13) is arranged at the water inlet groove. The dust removal component (13) comprises a water box (14), and a box cover (15) arranged at the opening of the water box (14). The water box (14) and the box cover (15) form a water inlet cavity. The water box (14) has a water inlet interface (16) at one end away from the box cover (15). The end of the water inlet interface (16) away from the water box (14) is connected to a water pump. The water inlet interface (16) is connected to the inside of the water inlet cavity. The box cover (15) is provided with a plurality of water outlet holes (151) in an array. The water outlet holes (151) are connected to the inside of the water inlet cavity. The cross-sectional area of ​​the water outlet holes (151) gradually decreases along the water flow direction.

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