Longitudinal paving machine for producing ultra-wide and large-breadth plates

Abstract

The invention discloses a longitudinal paving machine for producing ultra-wide and large-breadth plates. The longitudinal paving machine comprises a rack, and a feeding structure, a discharging structure, a material dispersing structure and a paving structure are arranged on the rack; the feeding structure comprises a storage bin, the storage bin is composed of a discharging belt, the front side and the rear side of the discharging belt and bin plates on the side away from the conveying tail end of the discharging belt, and the discharging structure is located at the position, close to the tail end of the discharging belt, of the bin plates. The unloading structure comprises an unloading harrow group; the unloading harrow group comprises a plurality of unloading harrows; the paving structure is located under the material dispersing structure and comprises a longitudinal paving harrow set, and the longitudinal paving harrow set is an array disc type paving harrow set which is sparse and dense at intervals. According to the invention, the size of the original paving structure is widened, the production of ultra-large width plates is realized, and the production efficiency of the plates is improved; the feeding mode of reciprocating rotation is designed from the feeding position and used for feeding wood shavings into the stock bin, the feeding effect is improved, then discharging, scattering and paving are conducted, and the production effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of artificial board production equipment, in particular to a longitudinal laying machine for super-wide large-format board production. BACKGROUND

[0002] A laying machine is used in the production process of shaving board to lay shavings and then send them to subsequent hot pressing processes; among them, the existing shaving laying structure is generally a small-width small-format board production equipment, that is, it is mostly used for the production of 4-foot and 8-foot board; in order to improve production efficiency, the width of the small-format board can be increased, that is, large-width board is produced to improve the production efficiency by several times; however, there is no suitable laying equipment for the production of large-width board, and there is room for improvement. SUMMARY

[0003] The purpose of the present application is to solve the problems in the prior art, and to provide a longitudinal laying machine for super-wide large-format board production, which can ensure the structural strength and improve the production efficiency.

[0004] To achieve the above purpose, the longitudinal laying machine for super-wide large-format board production adopts the following technical scheme: A longitudinal laying machine for super-wide large-format board production, comprising a rack, the rack is provided with a feeding structure, a discharging structure, a bulk material structure and a laying structure; wherein, The feeding structure comprises a storage bin, the storage bin is composed of a discharging belt and bin plates on both sides of the discharging belt and a side away from the discharging belt conveying end, and the discharging structure is located at the bin plate close to the discharging belt end; The discharging structure comprises a discharging rake group, the discharging rake group comprises a plurality of discharging rakes, and the lower end of the discharging structure faces the front end of the bulk material structure; The laying structure is located directly below the bulk material structure, and the laying structure comprises a longitudinal laying rake group, which is an array of sparse and dense disc-type laying rakes.

[0005] The longitudinal laying machine for super-wide large-format board production further improves in that the feeding structure comprises a feeding part for feeding the shaving material into the storage bin, the feeding part comprises a feeding belt conveyor, one end of the feeding belt conveyor is rotatably connected to the rack, the other end is located above the middle part of the storage bin, and the end of the feeding belt conveyor rotatably connected to the rack is provided with a feeding port above.

[0006] The longitudinal laying machine for super-wide large-format board production further improves in that the rack is provided with a bin sweeping rake group, and the bin sweeping rake group is located between the feeding part and the storage bin.

[0007] The further improvement of the longitudinal paving machine for the production of super-wide large-format panel material is that the storage bin is provided with a supplementary material position rotary switch and a full bin stop material rotary switch, and the two rotary switches are each provided with two groups and are distributed on the bin plates on the front and rear sides of the discharging belt in the storage bin.

[0008] The further improvement of the longitudinal paving machine for the production of super-wide large-format panel material is that the discharging rake comprises a discharging rake roller, a plurality of discharging pieces are arranged along the length direction of the discharging rake roller, and the discharging piece comprises a circumferentially designed discharging end for fluctuating and throwing the shavings upward.

[0009] The further improvement of the longitudinal paving machine for the production of super-wide large-format panel material is that the bulk material structure is a three-pronged wing spiral bulk material rake group.

[0010] The further improvement of the longitudinal paving machine for the production of super-wide large-format panel material is that the paving structure is arranged on an adjusting frame, and the adjusting frame is vertically and slidingly connected to the rack.

[0011] The further improvement of the longitudinal paving machine for the production of super-wide large-format panel material is that the rack further comprises a group blank production line, and a dynamic shavings scale is arranged at the group blank production line.

[0012] The further improvement of the longitudinal paving machine for the production of super-wide large-format panel material is that the further improvement of the longitudinal paving machine for the production of super-wide large-format panel material further comprises a bending prevention middle suspension, and the bending prevention middle suspension is vertically arranged and used for connecting the bulk material structure and the paving rake group.

[0013] The further improvement of the longitudinal paving machine for the production of super-wide large-format panel material is that the discharging size of the storage bin, the discharging structure and the paving structure is more than eight feet.

[0014] Compared with the prior art, the beneficial effects of the longitudinal paving machine for the production of super-wide large-format panel material are that: The longitudinal paving machine for the production of super-wide large-format panel material of the present application widens the original paving structure size, realizes the production of super-large wide-format panel material, improves the production efficiency of the panel material, improves the feeding effect by designing a reciprocating feeding mode for feeding the shavings into the bin, guarantees the production effect by discharging, spreading and paving, guarantees the effective work of the long shaft structure by additionally arranging the bending prevention suspension, and improves the service life. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the present application will be described in detail below in combination with the drawings and detailed embodiments. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them: Figure 1 is a structural schematic view of the present application; Figure 2 is a side structural schematic view of Figure 1 ; Figure 3 is a top structural schematic view of Figure 1 .

[0016] In the figure: 1 feeding port, 2 feeding belt conveyor, 3 storage hopper, 4 hopper sweeping rake group, 5 full hopper stopping feeding rotary switch, 6 supplementary material position rotary switch, 7 discharging rake group, 8 bulk material structure, 9 paving structure, 10 guide structure, 11 group blank production line, 12 dynamic shaving scale, 13 anti-bending middle suspension, 14 adjusting frame. DETAILED DESCRIPTION

[0017] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0018] In the following description, many specific details are set forth in order to provide a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the concept of the present application, therefore the present application is not limited to the specific embodiments disclosed below.

[0019] Secondly, the present application is described in detail in combination with the schematic view, in the detailed description of the embodiments of the present application, for the convenience of description, the cross-sectional view of the device structure will be partially enlarged without general proportion, and the schematic view is only an example, which should not limit the scope of protection of the present application herein. In addition, the three-dimensional spatial dimensions of length, width and depth should be included in actual production.

[0020] In order to make the purposes, technical solutions and advantages of the present application more clear, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

[0021] As shown in Figures 1 to 3 , a longitudinal paving machine for ultra-wide large-format panel production, comprising a rack, the rack is provided with a feeding structure, a discharging structure, a bulk material structure and a paving structure; specifically, wherein, The feeding structure comprises a storage hopper 3, which is composed of a discharging belt and hopper plates on both sides of the discharging belt before and after and on the side away from the discharging belt conveying end, and the discharging structure is located at the hopper plate close to the discharging belt end; the discharging belt is horizontally fixedly installed on the rack, and the rack is provided with front and rear hopper plates and left hopper plate in the direction shown in the figure, and the right side of the discharging belt is used for discharging; when discharging, the discharging structure installed on the rack is matched.

[0022] The unloading structure includes an unloading rake assembly 7, which comprises several unloading rakes. The lower end of the unloading structure faces the front end of the bulk material structure 8. The several unloading rakes are arranged at an angle at the front end of the unloading belt. Each unloading rake includes an unloading rake roller, which has several unloading blades spaced along its length. Each unloading blade includes a circumferentially designed material-pushing end, which is used to oscillate and scatter the wood shavings upwards. The material-pushing end cannot push downwards, otherwise the wood shavings will be pressed tightly onto the belt, hindering the material discharge. Adjacent components of the unloading rake assembly do not overlap, cross, or contact each other. The rotation direction pushes the material upwards, and the upward force can counteract the gravitational deformation of the rake roller.

[0023] The bulk material handling structure is a three-pronged spiral scraper assembly, which is mounted on the frame. The three-pronged spiral scraper assembly is an existing structure.

[0024] The paving structure 9 is located directly below the bulk material structure. The paving structure includes a longitudinal paving rake assembly, which is an array of disc-shaped paving rake assemblies with varying density. The array of disc-shaped paving rake assemblies with varying density is also an existing structure.

[0025] Furthermore, the feeding structure also includes a feeding section for feeding wood shavings into the storage silo. The feeding section includes a feeding belt conveyor 2, one end of which is rotatably connected to the frame, and the other end is located above the middle of the storage silo. An inlet 1 is located above the end of the feeding belt conveyor rotatably connected to the frame. Specifically, the feeding belt conveyor can be installed within a housing structure. One end of the housing structure has an inlet, and the other end has an outlet. The outlet faces the storage silo. The lower part of the housing at the inlet end is rotatably connected to the frame. The rotatable connection can be, but is not limited to, motor-driven reciprocating rotation.

[0026] The frame is equipped with a hopper sweeping rake group 4, which is located between the loading section and the storage hopper.

[0027] Furthermore, the storage silo is equipped with a replenishment level rotary switch 6 and a full-silo stop rotary switch 5. Two sets of each rotary switch are provided, distributed on the front and rear sides of the silo's unloading conveyor belt. The full-silo stop rotary switch can be replaced with a pressure switch. When the silo is nearly full, the shavings press against the pressure plate in front of the switch, triggering a signal to shut down the material preparation process and the oscillating feeding conveyor belt. A rotary replenishment switch is installed on the front side wall of the silo. When there is material in the silo, the switch does not rotate; when there is a shortage, the switch rotates, transmitting a signal to the material preparation process. Due to the silo's excessive width, to prevent signal errors, it is preferable to have one set of replenishment level rotary switches and one set of full-silo stop rotary switches on each side of the silo.

[0028] Furthermore, the paving structure is laid on the adjusting frame 14, which is vertically slidably connected to the machine frame. The sliding connection method can be, but is not limited to, existing structural forms such as telescopic cylinders and screw drives. To ensure the sliding problem, a guide structure 10 can also be provided on the machine frame. The guide structure can be, but is not limited to, rods, clamps, linear guides, etc.

[0029] The lower part of the frame is also equipped with a billet assembly line 11, and a dynamic shaving scale 12 is also installed at the billet assembly line. The billet assembly line is used to receive shavings from the pavement structure and form billets.

[0030] Furthermore, the overall structure also includes a bending-resistant central suspension, which is vertically arranged to connect the bulk material structure and the paving rake assembly. There can be two sets of the bending-resistant central suspension; one set is connected at one end to the bulk material structure, and the other set is connected at the other end to the paving rake assembly. Specifically, it connects to the rake rollers of the bulk material rake assembly and the paving rake assembly. In this case, the other end of the suspension is connected to the frame. The bending-resistant central suspension includes a connecting rod and a connecting bearing. The rake roller is connected to the inner side of the bearing, and the outer side of the bearing is fixedly connected to the connecting rod and then to the frame. The connection to the frame is detachable, facilitating adjustment to accommodate the adjustment frame. That is, the connecting rod can have multiple connecting holes for subsequent adjustment. Alternatively, when the rake rollers of the bulk material rake assembly and the paving rake assembly are on the same vertical line, only one set of the bending-resistant central suspension can be provided, connecting the bulk material rake roller and the paving rake roller. Specifically, it includes two sets of bearings and a connecting rod structure. The connecting rod structure is telescopically adjustable to accommodate the adjustment frame. The specific choice can be made based on the actual structure.

[0031] Specifically, the discharge dimensions of the storage silos, unloading structures, and paving structures are eight feet or larger. This is used to achieve the production and preparation of ultra-wide sheet materials.

[0032] The working principle of this invention is as follows: After mixing with adhesive, the oriented wood shavings enter the feeding conveyor belt through the inlet and are conveyed into the storage hopper. Because the conveyor belt runs horizontally back and forth, the hopper receives material from both the left and right sides, resulting in minimal peaks and troughs in the width of the discharge cross-section. When the wood shavings accumulate to a certain height in the hopper, a sweeping rake group moving from front to back flattens the shavings, ensuring a flat discharge cross-section. A pressure-type full-hopper stop switch is installed at the tail of the hopper. When the hopper is about to be full, the pressure plate in front of the wood shavings squeeze switch triggers a signal to stop the material flow. The material preparation process and the oscillating belt conveyor are as follows: A rotary replenishment switch is installed on the front side wall of the hopper. When there is material in the hopper, the switch does not rotate; when there is a shortage of material, the switch rotates and the signal is transmitted to the material preparation process. Due to the excessive width of the hopper, to prevent signal errors, a set of replenishment level rotary switches and a full hopper stop rotary switch should be installed on both sides of the hopper. When the unloading belt runs, the wood shavings reach the unloading rake group and are lifted upward by the rake teeth, causing the wood shavings to be thrown up and fall from above the rake group. The wood shavings fall on the bulk material rake group, which is set horizontally and rotates at high speed, causing the wood shavings to be stretched and scattered backward. After the wood shavings are dispersed, they fall into a horizontal rake array of discs with varying density in both length and width directions. Adjacent discs are of different sizes, and their outer edges are equipped with continuous serrations and intermittent hooks to pull and guide shavings into the gaps between the discs. The disc gaps are divided into two or more specifications according to the shaving shape: the gap between the first five sets of rakes is equal to the minimum width of the shavings, the gap between the middle five sets of rakes is equal to the maximum width of the shavings, and the gap between the last five sets of rakes is equal to a multiple of the width of the shavings. The design of varying spacing ensures that all shavings fall into the disc gaps, at which point the long strip direction of the shavings is forcibly changed to the longitudinal direction. The shavings fall onto the billet assembly line, and continuous production presents a longitudinal effect. The drive transmission design of the longitudinal laying machine is a synchronous belt structure, with a synchronous belt tensioning device added to the frame, which is quiet and precise. In order to adjust the height distance between the longitudinal rake group and the billet, a lifting adjustment device is designed on the longitudinal rake group frame, which is not limited to manual screw adjustment, electric lifting adjustment, etc.; and guide devices are designed at the four corners, which are not limited to clamping plates, linear guide rails, linear bearings, etc.

[0033] The adjacent components of the longitudinal rake assembly overlap but do not contact each other. The rotation direction is horizontal, throwing materials backward. Due to the gravity deformation of the paving, a vertical suspension device is required. In this embodiment, each longitudinal rake needs to be suspended at the center line using a set of suspension devices with built-in bearings 6216 (or other similar specifications), which are fastened to the frame above the longitudinal rake assembly and have the function of lifting and lowering adjustment to maintain the same height as the longitudinal rake assembly.

[0034] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the invention. In particular, as long as there is no structural conflict, the features in the disclosed embodiments can be combined with each other in any manner. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A longitudinal laying machine for the production of ultra-wide, large-format sheet materials, characterized in that, The machine includes a frame, on which are installed a feeding structure, a discharging structure, a bulk material handling structure, and a paving structure; among which, The feeding structure includes a storage bin, which consists of a feeding belt, the front and rear sides of the feeding belt, and a bin plate on the side away from the end of the feeding belt. The unloading structure is located on the bin plate near the end of the feeding belt. The unloading structure includes an unloading rake assembly, which includes several unloading rakes, with the lower end of the unloading structure facing the front end of the bulk material structure; The paving structure is located directly below the bulk material structure. The paving structure includes a longitudinal paving rake assembly, which is an array of disc-shaped paving rake assemblies with varying density.

2. A longitudinal laying machine for producing ultra-wide, large-format sheet materials according to claim 1, characterized in that, The feeding structure includes a feeding section for feeding wood shavings into the storage silo. The feeding section includes a feeding belt conveyor, one end of which is rotatably connected to the frame, and the other end is located above the middle of the storage silo. A feeding port is provided above the end of the feeding belt conveyor that is rotatably connected to the frame.

3. A longitudinal laying machine for producing ultra-wide, large-format sheet materials according to claim 2, characterized in that, The frame is equipped with a hopper sweeping rake assembly, which is located between the loading section and the storage hopper.

4. A longitudinal laying machine for producing ultra-wide, large-format sheet materials according to claim 1, characterized in that, The storage silo is equipped with a replenishment level rotary switch and a full silo stop rotary switch. There are two sets of each of the replenishment level rotary switch and the full silo stop rotary switch, which are distributed on the front and rear sides of the silo plate of the material conveyor belt inside the storage silo.

5. A longitudinal laying machine for producing ultra-wide, large-format sheet materials according to claim 1, characterized in that, The unloading rake includes an unloading rake roller, which has several unloading blades spaced apart along its length. Each unloading blade includes a circumferentially designed feeding end, which is used to oscillate and scatter the wood shavings upwards.

6. A longitudinal laying machine for producing ultra-wide, large-format sheet materials according to claim 1, characterized in that, The bulk material structure is a three-pronged spiral bulk material rake assembly.

7. A longitudinal laying machine for producing ultra-wide, large-format sheet materials according to claim 6, characterized in that, The paving structure is laid on the adjustment frame, which is vertically slidably connected to the machine frame.

8. A longitudinal laying machine for producing ultra-wide, large-format sheet materials according to claim 1, characterized in that, The lower part of the frame is also equipped with a billet assembly line, and a dynamic shaving scale is also installed at the billet assembly line.

9. A longitudinal laying machine for producing ultra-wide, large-format sheet materials according to claim 1, characterized in that, It also includes a central suspension for preventing bending, which is vertically installed and used to connect the bulk material structure and the paving rake assembly.

10. A longitudinal laying machine for the production of ultra-wide, large-format sheet materials according to claim 1, characterized in that, The discharge dimensions of the storage silo, unloading structure, and paving structure are eight feet or more.

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