Feeding and discharging equipment for bamboo processing

Abstract

The utility model relates to the technical field of bamboo wood processing, and discloses a feeding and discharging device for bamboo wood processing, which comprises a processing box, a controller is arranged on the front side of the processing box, a feeding port is arranged on one side of the processing box, and a discharging port is arranged on the other side of the processing box. An electric guide rail is started, a sliding seat slides on the electric guide rail, the sliding seat drives a first U-shaped connecting plate to move through a connecting column, meanwhile, a sliding block on a first guide rod between fixing plates moves along with the connecting column, a motor at the top of the first U-shaped connecting plate is started to drive a gear to rotate, and the gear is meshed with a rack; the rack drives the movable plate to slide in a movable opening of the first U-shaped connecting plate, vertical guide wheels between connecting transverse plates on the movable plate and transverse guide wheels between connecting vertical plates at the bottom of the first U-shaped connecting plate jointly guide the bamboo materials, and the effect that it is ensured that the bamboo materials are kept at the correct position in the feeding process is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of bamboo and wood processing, in particular to a material feeding and discharging device for bamboo and wood processing. Background Art

[0002] Bamboo and wood materials are primarily made from bamboo and wood. They boast rapid growth, high strength, environmental friendliness, and aesthetic appeal, offering broad application prospects in architecture, furniture, and handicrafts. As people prioritize environmental protection and sustainable development, the use of bamboo and wood materials is expected to expand.

[0003] In the field of bamboo and wood processing, the efficiency and accuracy of feeding and unloading equipment are crucial. Traditional bamboo and wood processing feeding and unloading equipment often has several problems during use. First, it is difficult to ensure that the bamboo and wood materials are correctly positioned during feeding, which leads to deviations during processing and affects product quality and processing efficiency. Furthermore, during discharge, the lack of effective cleaning measures allows debris and dust generated during processing to easily remain on the surface and sides of the bamboo and wood materials. This not only affects the appearance of the product but can also adversely affect subsequent processing steps or use. Utility Model Content

[0004] The purpose of the utility model is to provide a material feeding and discharging device for bamboo and wood processing, so as to facilitate the guidance and cleaning of bamboo and wood materials.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a material feeding and discharging equipment for bamboo and wood processing, comprising a processing box, a controller is provided on the front of the processing box, a material feeding port is provided on one side of the processing box, a material discharging port is provided on the other side of the processing box, conveying components are respectively provided on both sides of the processing box, and auxiliary components are provided on the top of the conveying component.

[0006] Preferably, the conveying assembly includes: a base, which is symmetrically fixedly installed on both sides of the processing box; a motor, which is fixedly installed on the outside of the base; and a conveying shaft, which is symmetrically and movably arranged inside the base.

[0007] Preferably, the two ends of the conveying shaft are respectively movable through the inner side of the base and extend to the outer side of the base, and are rotatably connected to the base through bearings. A fixed sleeve at one end of the conveying shaft is provided with a pulley, and the pulleys are connected by belt transmission. The output end of the motor is connected to one end of one of the conveying shafts, and a fixed sleeve on the outer wall of the conveying shaft is provided with a conveying roller, and the outer wall of the conveying roller is transmission-connected to the conveyor belt.

[0008] The output end of the motor is connected to one of the conveyor shafts. Through the transmission action of the pulley and belt, multiple conveyor shafts rotate synchronously, ensuring that the conveyor belt runs at a uniform speed and improving the stability and reliability of transportation.

[0009] Preferably, the auxiliary components include: a guide component, which is arranged on the top of the conveying component; and a cleaning component, which is arranged on the top of another conveying component.

[0010] Preferably, the guide component includes: a fixing frame 1, fixedly installed on the top of the base; a protective frame, fixedly installed on one side of the fixing frame 1; and a fixing plate, symmetrically fixedly installed on the other side of the fixing frame 1.

[0011] Preferably, sliding openings are respectively provided on both sides of the fixing frame, an electric guide rail is fixedly installed inside the protective frame, a sliding seat is provided on the outer wall sliding sleeve of the electric guide rail, a guide rod 1 is fixedly installed between the fixing plates, a sliding block is provided on the outer wall sliding sleeve of the guide rod 1, connecting columns are respectively fixedly installed on the inner sides of the sliding block and the inner sides of the sliding seat, the other end of the connecting column movably passes through the sliding opening, and is slidably connected to the fixing frame 1 through the sliding opening, a U-shaped connecting plate 1 is fixedly installed between the connecting columns, a motor is fixedly installed on the top of the U-shaped connecting plate 1, and the output end of the motor A gear is provided through a movable shaft, and the gear is movably connected to the U-shaped connecting plate through a movable shaft. A movable opening is symmetrically opened on the surface of the U-shaped connecting plate. The outer wall of the gear is symmetrically meshed with a rack. A movable plate is fixedly installed on the bottom of the rack. The movable plate passes through the movable opening and is slidingly connected to the U-shaped connecting plate through the movable opening. A connecting horizontal plate is symmetrically fixedly installed on the opposite side of the movable plate, and a vertical guide wheel is movably provided between the connecting horizontal plates. A connecting vertical plate is symmetrically fixedly installed on the bottom of the U-shaped connecting plate, and a horizontal guide wheel is movably provided between the connecting vertical plates.

[0012] The arrangement of the guide rod and the sliding block ensures the smoothness and linearity of the movement of the U-shaped connecting plate, avoids shaking or deviation, and ensures the accuracy of the guidance.

[0013] Preferably, the cleaning component includes: a second fixing frame fixedly mounted on the top of another base.

[0014] Preferably, the top equidistant sliding sleeve of the fixed frame two is provided with a guide rod two, the top of the guide rod two is fixedly installed with a limiting square plate, the outer wall sleeve of the guide rod two located in the middle is provided with a spring two, one end of the spring two is fixedly connected to the limiting square plate, and the other end of the spring two is fixedly connected to the fixed frame two, the bottom end of the guide rod two is fixedly installed with a U-shaped connecting plate two, and the bottom of the U-shaped connecting plate two is fixedly installed with a cleaning brush one, the sliding sleeves on both sides of the U-shaped connecting plate two are symmetrically provided with guide rods three, one end of the guide rod three is fixedly installed with a cleaning brush two, and the other end of the guide rod three is fixedly installed with a limiting circular plate, the outer wall sleeve of the guide rod three is provided with a spring one, one end of the spring one is fixedly connected to the U-shaped connecting plate two, and the other end of the spring one is fixedly connected to the limiting circular plate.

[0015] The setting of the spring 2 enables the cleaning brush 1 to automatically adjust its height according to the thickness of the bamboo or wood material.

[0016] The utility model provides a feeding and discharging device for bamboo and wood processing, which has the following beneficial effects:

[0017] (1) The utility model is started by an electric guide rail, and the slide slides on the electric guide rail. The slide drives the U-shaped connecting plate to move through the connecting column. At the same time, the sliding block on the guide rod between the fixed parts also moves with the connecting column. The motor at the top of the U-shaped connecting plate is started, driving the gear to rotate. The gear engages with the rack, so that the rack drives the moving plate to slide in the movable opening of the U-shaped connecting plate. The vertical guide wheels between the connecting horizontal plates on the moving plate and the horizontal guide wheels between the connecting vertical plates at the bottom of the U-shaped connecting plate jointly guide the bamboo and wood materials, thereby ensuring that the bamboo and wood materials maintain the correct position during the feeding process.

[0018] (2) The utility model pulls the limiting square plate upward according to the size of the bamboo or wood, and the limiting square plate drives the U-shaped connecting plate 2 and the cleaning brush 1 to move upward through the guide rod 2, and the spring 2 located on the middle guide rod 2 makes the cleaning brush 1 at the bottom of the U-shaped connecting plate 2 always in contact with the surface of the bamboo or wood material. The limiting circular plate is pulled to both sides, and the limiting circular plate drives the cleaning brush 2 to move outward, and the spring 1 on the guide rod 3 on both sides of the U-shaped connecting plate 2 also makes the cleaning brush 2 always in contact with the side of the bamboo or wood material, so as to facilitate the cleaning of the bamboo or wood material discharged after processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a structural view of the conveying component of the utility model;

[0021] Figure 3 This is a cross-sectional view of the guide component structure of the utility model;

[0022] Figure 4 This is a structural view of the cleaning components of the utility model.

[0023] In the figure: 1 processing box, 2 controller, 3 conveying assembly, 4 auxiliary components;

[0024] 311 base, 312 motor, 313 conveyor shaft, 314 pulley, 315 belt, 316 conveyor roller, 317 conveyor belt;

[0025] 41 guide component, 411 fixing frame 1, 412 protection frame, 413 electric guide rail, 414 slide, 415 fixing plate, 416 guide rod 1, 417 sliding block, 418 connecting column, 419 U-shaped connecting plate 1, 4111 motor, 4112 gear, 4113 rack, 4114 moving plate, 4115 connecting horizontal plate, 4116 vertical guide wheel, 4117 connecting vertical plate, 4118 horizontal guide wheel;

[0026] 42 cleaning parts, 421 fixing frame 2, 422 guide rod 2, 423 limiting square plate, 424 U-shaped connecting plate 2, 425 cleaning brush 1, 426 guide rod 3, 427 cleaning brush 2, 428 limiting circular plate, 429 spring 1, 4211 spring 2. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0028] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0029] Example 1:

[0030] The preferred embodiment of the feeding and discharging equipment for bamboo and wood processing provided by the utility model is as follows Figure 1-4The figure shows: a feeding and discharging equipment for bamboo and wood processing, comprising a processing box 1, a controller 2 is provided on the front of the processing box 1, a feeding port is provided on one side of the processing box 1, and a discharging port is provided on the other side of the processing box 1, a conveying assembly 3 is provided on both sides of the processing box 1, and an auxiliary component 4 is provided on the top of the conveying assembly 3, and the conveying assembly 3 comprises: a base 311, symmetrically fixedly mounted on both sides of the processing box 1; a motor 312, fixedly mounted on the outside of the base 311; a conveying shaft 313, symmetrically and movably arranged inside the base 311; both ends of the conveying shaft 313 are movably passed through the inner side of the base 311 and extend to the outside of the base 311, and are rotatably connected to the base 311 through bearings, one end of the conveying shaft 313 is fixedly sleeved with a pulley 314, and the pulleys 314 are connected by a belt 315 for transmission, the output end of the motor 312 is connected to one end of one of the conveying shafts 313, the outer wall of the conveying shaft 313 is fixedly sleeved with a conveying roller 316, and the outer wall of the conveying roller 316 is transmission-connected with a conveyor belt 317.

[0031] Furthermore, in the embodiment, the motor 312 is started to drive one of the conveying shafts 313 to rotate, and the pulley 314 at one end of the conveying shaft 313 rotates accordingly. The other conveying shaft 313 is rotated synchronously through the transmission action of the belt 315. The conveying roller 316 on the conveying shaft 313 drives the conveyor belt 317 to operate, and the bamboo and wood materials are conveyed from the feed port into the processing box 1 for processing. After the processing is completed, it is output from the discharge port and discharged again through another conveying component 3.

[0032] Example 2:

[0033] On the basis of embodiment 1, the preferred embodiment of the feeding and discharging equipment for bamboo and wood processing provided by the present invention is as follows: Figure 1-4As shown: the auxiliary component 4 includes: a guide component 41, which is arranged at the top of the conveying component 3; a cleaning component 42, which is arranged at the top of another conveying component 3; the guide component 41 includes: a fixing frame 411, which is fixedly installed on the top of the base 311; a protective frame 412, which is fixedly installed on one side of the fixing frame 411; a fixing plate 415, which is symmetrically fixedly installed on the other side of the fixing frame 411; sliding openings are respectively provided on both sides of the fixing frame 411, and an electric guide rail 413 is fixedly installed inside the protective frame 412. The outer wall sliding sleeve of the electric guide rail 413 is provided with a sliding seat 414, and a guide rod 416 is fixedly installed between the fixing plates 415. The outer wall sliding sleeve of the guide rod 416 is provided with a sliding block 417, and the inner side of the sliding block 417 and the inner side of the sliding seat 414 are respectively fixedly installed with a connecting column 418, and the other end of the connecting column 418 movably passes through the sliding opening and is slidably connected to the fixing frame 411 through the sliding opening. A U-shaped connecting plate 419 is fixedly installed between the connecting columns 418, and a motor 4111 is fixedly installed on the top of the U-shaped connecting plate 419. The output end of the motor 4111 is provided with a gear 4112 through a movable shaft. The gear 4112 is movably connected to the U-shaped connecting plate 419 through a movable shaft. A movable opening is symmetrically opened on the surface of the U-shaped connecting plate 419, and a rack 4113 is symmetrically meshed and connected to the outer wall of the gear 4112. A movable plate 4114 is fixedly installed at the bottom of the rack 4113. The movable plate 4114 passes through the movable opening and is slidably connected to the U-shaped connecting plate 419 through the movable opening. A connecting horizontal plate 4115 is symmetrically fixedly installed on the opposite side of the movable plate 4114, and a vertical guide wheel 4116 is movably provided between the connecting horizontal plates 4115. A connecting vertical plate 4117 is symmetrically fixedly installed at the bottom of the U-shaped connecting plate 419, and a horizontal guide wheel 4118 is movably provided between the connecting vertical plates 4117.

[0034] Furthermore, in the embodiment, the electric guide rail 413 in the protective frame 412 is started, and the slide 414 slides on the electric guide rail 413. The slide 414 drives the U-shaped connecting plate 419 to move through the connecting column 418. At the same time, the sliding block 417 on the guide rod 416 between the fixed plates 415 also moves with the connecting column 418 to ensure the stability of the movement of the U-shaped connecting plate 419. The motor 4111 at the top of the U-shaped connecting plate 419 is started, driving the gear 4112 to rotate. The gear 4112 engages with the rack 4113, so that the rack 4113 drives the movable plate 4114 to slide in the movable mouth of the U-shaped connecting plate 419. The vertical guide wheels 4116 between the connecting horizontal plates 4115 on the movable plate 4114 and the horizontal guide wheels 4118 between the connecting vertical plates 4117 at the bottom of the U-shaped connecting plate 419 jointly guide the bamboo and wood materials to ensure that the bamboo and wood materials maintain the correct position during the transportation process.

[0035] Example 3:

[0036] On the basis of the first and second embodiments, the preferred embodiment of the feeding and discharging equipment for bamboo and wood processing provided by the present invention is as follows: Figure 1-4 As shown: the cleaning component 42 includes: a second fixing frame 421, which is fixedly mounted on the top of another base 311; a second guide rod 422 is provided on the top of the second fixing frame 421, and a limited square plate 423 is fixedly mounted on the top of the second guide rod 422. A second spring 4211 is provided on the outer wall of the second guide rod 422 in the middle, and one end of the second spring 4211 is fixedly connected to the limited square plate 423, and the other end of the second spring 4211 is fixedly connected to the second fixing frame 421. The bottom end of the second guide rod 422 is fixedly mounted with a U-shaped Connecting plate 2 424, a cleaning brush 1 425 is fixedly installed at the bottom of the U-shaped connecting plate 2 424, and guide rods 3 426 are provided on both sides of the symmetrical sliding sleeve, one end of the guide rod 3 426 is fixedly installed with a cleaning brush 2 427, and the other end of the guide rod 3 426 is fixedly installed with a limiting circular plate 428, and the outer wall sleeve of the guide rod 3 426 is provided with a spring 1 429, one end of the spring 1 429 is fixedly connected to the U-shaped connecting plate 2 424, and the other end of the spring 1 429 is fixedly connected to the limiting circular plate 428.

[0037] Furthermore, in the embodiment, by pulling the limiting square plate 423 upward according to the size of the bamboo and wood, the limiting square plate 423 drives the U-shaped connecting plate 2 424 and the cleaning brush 1 425 to move upward through the guide rod 2 422, and the spring 2 4211 located on the middle guide rod 2 422 makes the cleaning brush 1 425 at the bottom of the U-shaped connecting plate 2 424 always in contact with the surface of the bamboo and wood material, and the limiting circular plate 428 is pulled to both sides, and the limiting circular plate 428 drives the cleaning brush 2 427 to move outward, and the spring 1 429 on the guide rod 3 426 on both sides of the U-shaped connecting plate 2 424 also makes the cleaning brush 2 427 always in contact with the side of the bamboo and wood material, so as to facilitate the cleaning of the bamboo and wood material discharged after processing.

[0038] When in use, the motor 312 is started, driving one of the conveying shafts 313 to rotate, and the pulley 314 at one end of the conveying shaft 313 rotates accordingly, and the other conveying shaft 313 is rotated synchronously through the transmission action of the belt 315. The conveying roller 316 on the conveying shaft 313 drives the conveyor belt 317 to operate, and the bamboo and wood materials are conveyed from the feed port into the processing box 1 for processing. After the processing is completed, the bamboo and wood materials are output from the discharge port and discharged again through another conveying component 3. During the feeding process, the motor in the protective frame 412 The guide rail 413 is started, and the slide 414 slides on the electric guide rail 413. The slide 414 drives the U-shaped connecting plate 419 to move through the connecting column 418. At the same time, the sliding block 417 on the guide rod 416 between the fixed plates 415 also moves with the connecting column 418 to ensure the stability of the movement of the U-shaped connecting plate 419. The motor 4111 on the top of the U-shaped connecting plate 419 is started, driving the gear 4112 to rotate. The gear 4112 is engaged with the rack 4113, so that the rack 4113 drives the moving plate 419. The bamboo and wood materials are guided by the vertical guide wheels 4116 between the connecting horizontal plates 4115 on the movable plate 4114 and the horizontal guide wheels 4118 between the connecting vertical plates 4117 at the bottom of the U-shaped connecting plate 419 to ensure that the bamboo and wood materials maintain the correct position during the conveying process. In the process of discharging, the limiting square plate 423 is pulled upward according to the size of the bamboo and wood. The limiting square plate 423 drives the U-shaped connecting plate 424 and the cleaning plate 426 through the guide rod 422. The cleaning brush 1 425 moves upward, and the spring 2 4211 on the guide rod 2 422 in the middle makes the cleaning brush 1 425 at the bottom of the U-shaped connecting plate 2 424 always in contact with the surface of the bamboo material, pulling the limiting circular plate 428 to both sides. The limiting circular plate 428 drives the cleaning brush 2 427 to move outward, and the spring 1 429 on the guide rod 3 426 on both sides of the U-shaped connecting plate 2 424 makes the cleaning brush 2 427 always in contact with the side of the bamboo material, so as to facilitate the cleaning of the bamboo material discharged after processing.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A material feeding and discharging device for bamboo and wood processing, comprising a processing box (1), characterized in that: A controller (2) is provided on the front of the processing box (1), a feed port is provided on one side of the processing box (1), and a discharge port is provided on the other side of the processing box (1), and conveying components (3) are provided on both sides of the processing box (1), and an auxiliary component (4) is provided on the top of the conveying component (3).

2. The feeding and discharging equipment for bamboo and wood processing according to claim 1, characterized in that: The conveying assembly (3) comprises: A base (311) is symmetrically fixedly mounted on both sides of the processing box (1); A motor (312) is fixedly mounted on the outside of the base (311); The conveying shaft (313) is symmetrically and movably arranged inside the base (311).

3. The feeding and discharging equipment for bamboo and wood processing according to claim 2, characterized in that: The two ends of the conveying shaft (313) are respectively movable through the inner side of the base (311) and extend to the outer side of the base (311), and are rotatably connected to the base (311) through bearings. One end of the conveying shaft (313) is fixedly sleeved with a pulley (314), and the pulleys (314) are connected to each other through a belt (315). The output end of the motor (312) is connected to one end of one of the conveying shafts (313). The outer wall of the conveying shaft (313) is fixedly sleeved with a conveying roller (316), and the outer wall of the conveying roller (316) is connected to a conveyor belt (317).

4. The feeding and discharging equipment for bamboo and wood processing according to claim 1, characterized in that: The auxiliary component (4) comprises: A guide component (41) is provided on the top of the conveying assembly (3); A cleaning component (42) is arranged on top of another conveying component (3).

5. The feeding and discharging equipment for bamboo and wood processing according to claim 4, characterized in that: The guide component (41) comprises: A fixing frame (411) is fixedly mounted on the top of the base (311); A protective frame (412) is fixedly mounted on one side of the fixing frame (411); The fixing plate (415) is symmetrically fixedly mounted on the other side of the fixing frame (411).

6. The feeding and discharging equipment for bamboo and wood processing according to claim 5, characterized in that: Sliding openings are respectively provided on both sides of the fixing frame (411), an electric guide rail (413) is fixedly installed inside the protection frame (412), and a sliding seat (414) is provided on the outer wall sliding sleeve of the electric guide rail (413). A guide rod (416) is fixedly installed between the fixing plates (415), and a sliding block (417) is provided on the outer wall sliding sleeve of the guide rod (416). Connecting columns (418) are fixedly installed on the inner side of the sliding block (417) and the inner side of the sliding seat (414), respectively. The other end of the connecting column (418) is movable through the sliding opening and is slidably connected to the fixing frame (411) through the sliding opening. A U-shaped connecting plate (419) is fixedly installed between the connecting columns (418), and a motor (4111) is fixedly installed on the top of the U-shaped connecting plate (419). The output end of the motor (4111) is connected to the fixing frame (412) by a movable shaft. A gear (4112) is provided, and the gear (4112) is movably connected to the U-shaped connecting plate (419) through a movable shaft. The surface of the U-shaped connecting plate (419) is symmetrically provided with a movable opening. The outer wall of the gear (4112) is symmetrically meshed with a rack (4113). A movable plate (4114) is fixedly installed at the bottom of the rack (4113). The movable plate (4114) passes through the movable opening and is slidably connected to the U-shaped connecting plate (419) through the movable opening. A connecting horizontal plate (4115) is symmetrically fixedly installed on the opposite side of the movable plate (4114). A vertical guide wheel (4116) is movably provided between the connecting horizontal plates (4115). A connecting vertical plate (4117) is symmetrically fixedly installed at the bottom of the U-shaped connecting plate (419). A horizontal guide wheel (4118) is movably provided between the connecting vertical plates (4117).

7. The feeding and discharging equipment for bamboo and wood processing according to claim 4, characterized in that: The cleaning component (42) comprises: The second fixing frame (421) is fixedly mounted on the top of the other base (311).

8. The feeding and discharging equipment for bamboo and wood processing according to claim 7, characterized in that: The top of the second fixing frame (421) is equidistantly slidingly sleeved with a second guide rod (422), the top of the second guide rod (422) is fixedly installed with a limiting square plate (423), the outer wall sleeve of the second guide rod (422) in the middle is provided with a second spring (4211), one end of the second spring (4211) is fixedly connected to the limiting square plate (423), the other end of the second spring (4211) is fixedly connected to the second fixing frame (421), the bottom end of the second guide rod (422) is fixedly installed with a second U-shaped connecting plate (424), the bottom of the second U-shaped connecting plate (424) is fixedly installed with a second U-shaped connecting plate (424). A cleaning brush (425) is fixedly installed on the top of the U-shaped connecting plate (424), and a guide rod (426) is provided on both sides of the symmetrical sliding sleeve. A cleaning brush (427) is fixedly installed on one end of the guide rod (426), and a limiting circular plate (428) is fixedly installed on the other end of the guide rod (426). A spring (429) is provided on the outer wall of the guide rod (426), and one end of the spring (429) is fixedly connected to the U-shaped connecting plate (424), and the other end of the spring (429) is fixedly connected to the limiting circular plate (428).

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