Rear feeding numerical control cut-to-size saw and control method

Abstract

The invention relates to the technical field of woodworking saw machinery, in particular to a rear feeding numerical control cut-to-size saw and a control method. The cut-to-size saw comprises a machine table which is provided with a material pressing device and a saw cutting device; the feeding device comprises a rack, a lifting table, a first push plate mechanism, a second push plate mechanism and a labeling mechanism; the rack is provided with a feeding cavity and a conveying channel. The lifting table is used for lifting the stacked plates to the level of the conveying channel; the second plate pushing mechanism is used for pushing the lifted plates to the conveying channel; the first push plate mechanism comprises a first cross beam, a first motor, a first magnetic grid positioning structure, a plurality of clamp assemblies distributed side by side and a lifting assembly used for driving the clamp assemblies to ascend and descend. According to the scheme, through automatic feeding of the lifting table, cooperative transferring of the first plate pushing mechanism and the second plate pushing mechanism and a lifting avoiding mechanism of the clamp assembly, synchronous operation is combined with the labeling mechanism, continuous sawing pretreatment of multiple plates is achieved, the standby time is remarkably shortened, the production efficiency and the cutting precision are improved, and manual dependence is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of woodworking sawing machines, in particular to a rear feeding numerical control panel saw and a control method. BACKGROUND

[0002] The panel saw is a core equipment for cutting man-made fiber boards, solid wood boards and the like in the panel furniture manufacturing and wood product processing industry, and the automation level thereof directly affects the production efficiency and product precision. At present, the mainstream panel saws in China are mostly semi-automatic equipment, which usually rely on manual feeding, feeding and other key processes: the operator needs to manually carry the board to the sawing station, position the board by manual pushing, and then start the sawing device to complete the cutting. The above panel saw can cut the board, but the feeding function is single, and the operator needs to wait for the current board to be cut before starting the feeding and preparation of the next board, which has the problems of long standby time and low efficiency for single cutting. SUMMARY

[0003] To overcome the problems in the related art, the present application provides a rear feeding numerical control panel saw, which automatically feeds through a lifting table, cooperatively transfers through a first and a second plate pushing mechanism, and avoids obstacles through a gripper assembly lifting mechanism, and synchronously works with a labeling mechanism to realize continuous sawing of multiple boards, significantly shorten the standby time, improve the production efficiency and cutting precision, and reduce the dependence on manual operation.

[0004] The first aspect of the present application provides a rear feeding numerical control panel saw, comprising:

[0005] A machine table provided with a pressing device and a sawing device;

[0006] A feeding device located on the feeding side of the machine table, comprising a rack, a lifting table, a first plate pushing mechanism, a second plate pushing mechanism and a labeling mechanism;

[0007] The rack is provided with a feeding cavity for placing the lifting table and a conveying channel for transferring the board; the lifting table is used to lift the stacked boards to be horizontal with the conveying channel; the labeling mechanism is used to label the board; the second plate pushing mechanism is used to push the lifted board to the conveying channel; the first plate pushing mechanism comprises a first beam, a first motor, a first magnetic grid positioning structure, a plurality of side-by-side distributed gripper assemblies and a lifting assembly for driving the gripper assemblies to lift; both ends of the first beam are slidingly connected with the rack through guide wheels; the first motor is fixedly arranged on the first beam and is drivingly connected with the rack through a first transmission shaft; a plurality of gripper assemblies are arranged on the side of the first beam facing the machine table;

[0008] When the second plate pushing mechanism pushes the next plate into the conveying channel, the lifting assembly drives the clamp assembly to rise to avoid the next plate, and the second plate pushing mechanism pushes the plate in the conveying channel onto the machine table.

[0009] In some embodiments, the lifting platform comprises a feeding drum line, a hydraulic system, and a column distributed on both sides of the drum line; the column is provided with a groove extending in the height direction; each side of the feeding drum line is provided with two transmission fixed pulleys, which are slidingly arranged in the groove; the output end of the hydraulic system is connected with a transmission rod, and the transmission rod is connected with four steel wires; the bottom of the feeding drum line is provided with a reversing fixed pulley, and each steel wire is wound around one of the transmission fixed pulleys after being reversed by the reversing fixed pulley; the end of the steel wire is fixed to the top of the groove, so that the feeding drum line is synchronously lifted.

[0010] In some embodiments, the lifting platform further comprises a travel switch, a first sensor, a second sensor, and a plurality of feeding stops, the feeding stops are used for aligning the feeding of the plate, and the feeding stops are arranged side by side on the side of the feeding drum line close to the rack; the travel switch is arranged outside the column to limit the lifting height of the drum line; the first sensor is arranged on the rack to detect the feeding height of the plate; the second sensor is arranged at the bottom of the feeding drum line to detect whether there is a plate.

[0011] In some embodiments, the second plate pushing mechanism comprises a second cross beam, a second motor, a second magnetic grid positioning structure, and a plurality of plate pushing roller assemblies;

[0012] Both ends of the second cross beam are rollingly matched with the rack through guide wheels, the second motor is arranged on the second cross beam, the second motor is drivingly connected with the rack through a second transmission shaft, and the plate pushing roller assemblies are arranged on the side of the second cross beam away from the first plate pushing mechanism;

[0013] The labeling mechanism comprises a labeling assembly, a printing assembly, and a driving assembly; the labeling assembly is arranged on the side of the second cross beam close to the first plate pushing mechanism and slidingly matched with the second cross beam, the driving assembly is used for driving the labeling assembly to move along the length direction of the second cross beam; and the printing assembly is located at the end of the second cross beam.

[0014] In some embodiments, the plate pushing roller assembly comprises a plate pushing mounting seat, a plate pushing member, a pressure roller mounting seat, a pneumatic cylinder, a wheel mounting seat, and a fourth sensor;

[0015] The push plate mounting seat is fixed on the second cross beam, and the push plate is in sliding fit with the push plate mounting seat in the height direction; the pressure roller mounting seat is arranged on the side of the push plate facing the first push plate mechanism, and the pressure roller mounting seat is provided with a plurality of horizontally arranged pressure rollers; the leaning wheel mounting seat is fixed on the push plate mounting seat through a support, and the leaning wheel mounting seat is provided with leaning wheels on both sides in the length direction of the second cross beam;

[0016] The output end of the air cylinder is hinged to the push plate, and the fixed end is hinged to the leaning wheel mounting seat; the leaning wheel mounting seat is provided with a fourth sensor for detecting the edge of the plate; and the second motor drives the second cross beam to move horizontally in the feeding cavity according to the signal of the fourth sensor, so that the leaning wheel mounting seat moves to the outside of the edge of the plate.

[0017] The push plate mounting seat is provided with a magnetic scale for detecting the lifting height of the push plate and a reading head for detecting the lifting height of the push plate.

[0018] In some embodiments, the labeling assembly comprises a labeling mounting seat, a labeling air cylinder, an optical shaft, a guide seat, a rotary air cylinder and a labeling head; the driving assembly is a servo motor; one side of the labeling mounting seat is provided with a sliding block, and the second cross beam is provided with a guide rail extending in the length direction, and the sliding block is in sliding connection with the guide rail;

[0019] The second cross beam is provided with a rack extending in the length direction, the servo motor is fixed on the labeling mounting seat, and the output shaft of the servo motor is provided with a gear in meshing connection with the rack; the labeling air cylinder is fixed on the labeling mounting seat, and the output end of the labeling air cylinder is connected with the rotary air cylinder; the output end of the rotary air cylinder is connected with the labeling head, the labeling head is connected with an external negative pressure device through a fifth sensor, and the fifth sensor is used for detecting the pressure value of the labeling head; the rotary air cylinder is vertically provided with an optical shaft, the optical shaft is provided with a guide seat, and the guide seat is connected with the labeling air cylinder.

[0020] In some embodiments, the lifting assembly comprises a first clamp air cylinder; the clamp assembly comprises the mounting plate, a clamp, a second clamp air cylinder and a pair of photoelectric switches;

[0021] The first clamp air cylinder is fixed on the first cross beam, and the output shaft thereof is connected with the mounting plate; the mounting plate is in sliding connection with the first cross beam; the clamp is arranged on the mounting plate; and the second clamp air cylinder is fixed on the mounting plate, and the output end thereof is connected with the clamp to drive the clamp to open and close;

[0022] The emitting end of the pair of photoelectric sensors is located at the first end of the first cross beam, and the receiving end is located at the second end of the first cross beam,

[0023] One side of each clamp assembly is provided with a sensing assembly, the sensing assembly comprises two sensing metal sheets arranged at intervals in the height direction, a gap is arranged between the two sensing metal sheets, and the connecting line between the emitting end and the receiving end penetrates the gap of each sensing assembly.

[0024] In some embodiments, the pressing device comprises a pressing beam, a lifting drive, a first side-lying assembly, and a second side-lying assembly.

[0025] The machine table has a workbench, and the pressing beam is located above the workbench. The lifting drive comprises two symmetrically arranged pressing cylinders, which are fixedly arranged on the machine table and have output ends connected to the pressing beam.

[0026] The first side-lying assembly comprises a fixed beam, a side-lying mounting seat, a transmission motor, and two symmetrically arranged side-lying wheels. The fixed beam is located above the pressing beam and has two ends connected to the machine table. The transmission motor is fixedly arranged on the side-lying mounting seat, which is in sliding connection with the fixed beam. The transmission motor is in transmission connection with the fixed beam through a gear and rack structure. The side-lying mounting seat is symmetrically provided with two first side-lying cylinders, which are respectively located on both sides of the pressing beam. The output end of each first side-lying cylinder is connected to a side-lying wheel.

[0027] The second side-lying assembly comprises a side-lying plate and a second side-lying cylinder. The second side-lying cylinder is arranged on the bottom surface of the workbench, and the workbench is provided with a sawing gap. The output end of the second side-lying cylinder is connected to the side-lying plate, which can be extended in the sawing gap.

[0028] In some embodiments, the discharge side of the machine table is further provided with a plurality of air floating tables. The outer side of each air floating table is provided with a plurality of front loading auxiliary rollers and side loading auxiliary rollers. One side of each air floating table is provided with a waste breaking device for breaking the excess cutting waste.

[0029] The second aspect of the present application provides a control method of a rear loading numerical control panel saw, which comprises:

[0030] (1) The lifting table lifts the stacked boards to be horizontal with the conveying channel.

[0031] (2) The second push plate mechanism moves to the side wall of the lifted board, and stops at a preset position above the board during the movement according to the sawing requirement. The labeling mechanism prints a label according to the processing requirement and attaches it to the board. After the labeling is completed, the second push plate mechanism abuts against the board.

[0032] (3) The second push plate mechanism pushes the board into the conveying channel, and then the first push plate mechanism pushes the board into the machine table. The pressing device presses the board, and the sawing device performs sawing.

[0033] (4) During the sawing process, the second push plate mechanism repeats step (2) for the next stacked board.

[0034] (5) The second push plate mechanism pushes the next board to the conveying channel and waits; after the current board is sawn once, the pressing device is lifted, the lifting assembly of the first push plate mechanism drives the clamp assembly to rise and avoid; the second push plate mechanism pushes the next board to abut against the current board, and the two boards are jointly pushed to the preset sawing width;

[0035] (6) The pressing device presses the current board, and the sawing device performs sawing; the clamp assembly of the first push plate mechanism is in an avoiding state, and the two boards are continuously moved and sawn by the second push plate mechanism;

[0036] (7) If the remaining material after sawing the current board is a waste board, the second push plate mechanism pushes the board to move based on the size information of the next board; if the conveying channel length is sufficient to accommodate a third board, the second push plate mechanism performs step (2) on the third board, while the first push plate mechanism pushes the second board to move;

[0037] (8) Repeat the above steps to cyclically perform board processing.

[0038] The implementation of the present application has the following beneficial effects:

[0039] Through the structure design of automatic layer-by-layer feeding of the lifting platform, cooperative transfer of the double push plate mechanism, and lifting and avoiding of the clamp assembly, combined with the parallel sawing and cutting process, the continuous abutting and pushing of multiple boards, and the intelligent processing of waste boards, the full-process automatic operation is realized, the single sawing standby time is significantly shortened, the production efficiency and cutting accuracy are improved, and the dependence on manual operation and material waste are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0040] The above and other objects, features and advantages of the present application will become more apparent from the following detailed description of exemplary embodiments of the present application taken in conjunction with the accompanying drawings, in which like reference characters refer to the like parts throughout the different views.

[0041] Figure 1 is a perspective view of a rear feeding numerical control panel saw according to an embodiment of the present application;

[0042] Figure 2 is another perspective view of a rear feeding numerical control panel saw according to an embodiment of the present application;

[0043] Figure 3 is a structural view of a first push plate mechanism according to an embodiment of the present application;

[0044] Figure 4 is a structural view of a clamp assembly according to an embodiment of the present application;

[0045] Figure 5is a schematic diagram of cooperation of the first push plate mechanism and the second push plate mechanism shown in the embodiment of the present application;

[0046] Figure 6 is a structural schematic diagram of the lifting platform shown in the embodiment of the present application;

[0047] Figure 7 is a winding schematic diagram of the steel wire shown in the embodiment of the present application;

[0048] Figure 8 is a structural schematic diagram of the second push plate mechanism shown in the embodiment of the present application;

[0049] Figure 9 is a structural schematic diagram of the push plate roller assembly shown in the embodiment of the present application;

[0050] Figure 10 is another structural schematic diagram of the push plate roller assembly shown in the embodiment of the present application;

[0051] Figure 11 is a structural schematic diagram of the labeling assembly shown in the embodiment of the present application;

[0052] Figure 12 is a structural schematic diagram of the printing assembly shown in the embodiment of the present application;

[0053] Figure 13 is a structural schematic diagram of the first side leaning device shown in the embodiment of the present application.

[0054] In the figure:

[0055] 1, machine table;

[0056] 2, pressing device; 22, first side leaning assembly; 220, fixed beam; 221, side leaning mounting seat; 222, transmission motor; 223, side leaning wheel; 224, first side leaning cylinder; 23, second side leaning assembly;

[0057] 3, sawing device;

[0058] 4, feeding device;

[0059] 40, machine frame;

[0060] 41, lifting platform; 410, feeding roller line; 411, hydraulic system; 412, stand column; 413, transmission fixed pulley; 414, transmission rod; 415, reversing fixed pulley; 416, steel wire; 417, travel switch; 418, first sensor; 419, feeding leaning stop;

[0061] 42, first push plate mechanism; 420, first crossbeam; 421, clamp assembly; 4210, mounting plate; 4211, clamp; 4212, second clamp cylinder; 4213, photoelectric switch; 4214, induction sheet metal; 422, lifting assembly; 423, first transmission shaft;

[0062] 43, second push plate mechanism; 431, second crossbeam; 432, push plate roller assembly; 4320, push plate mounting seat; 4321, push plate; 4322, pressure roller mounting seat; 4323, push plate cylinder; 4324, supporting wheel mounting seat; 4325, fourth sensor; 4326, pressure roller; 4327, magnetic scale; 4328, reading head; 433, second transmission shaft;

[0063] 44, labeling mechanism; 440, labeling assembly; 4400, labeling mounting seat; 4401, labeling cylinder; 4402, optical axis; 4403, guide seat; 4404, rotary cylinder; 4405, labeling head; 441, printing assembly; 442, driving assembly;

[0064] 5, air floating table; 50, front feeding auxiliary roller; 51, side feeding auxiliary roller;

[0065] 6, waste material breaking device;

[0066] 7, board. DETAILED DESCRIPTION

[0067] Preferred embodiments of the present application will be described herein below with reference to the drawings. Although the preferred embodiments of the present application are shown in the drawings, it is understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0068] The terminology used in the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application. As used in the present application and the appended claims, the singular forms "a," "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "and / or," as used herein, refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0069] It should be understood that although the terms "first", "second", "third", etc. can be used in this application to describe various information, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as the first information without departing from the scope of the application. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0070] In the plate furniture manufacturing and wood processing industry, the panel saw as the core equipment undertakes the precise cutting task of artificial fiber plate, solid wood plate and other materials, and its automation level is directly related to the production efficiency and product precision control. The current mainstream panel saw equipment is generally in the semi-automatic stage, and the key processes such as feeding and feeding are highly dependent on manual operation. In the specific implementation process, the operator needs to repeatedly carry heavy plates to the sawing station, and realizes the positioning of the plate by manual pushing, and then manually starts the sawing device to complete the cutting operation. This operation mode not only greatly increases the labor intensity of workers, but also causes cutting errors to accumulate due to the lack of accuracy of manual positioning, affecting the quality of the final product. More prominent is that the feeding function design of the existing equipment has a fundamental defect: it must strictly wait for the current plate to complete the entire sawing process and completely move out of the working area before starting the feeding and pretreatment of the next plate. This serial operation mode causes the equipment to be idle for a long time during the sawing period, and there is a significant standby window period during single sawing process, which seriously drags the overall production rhythm. In the continuous production scene, this problem is particularly prominent, and becomes a key bottleneck restricting the capacity improvement, and it is urgent to realize multi-task parallel processing through technical innovation to break through the efficiency limit.

[0071] In view of the above problems, the embodiment of the present application provides a rear feeding numerical control panel saw, which realizes continuous sawing pretreatment of multiple plates by automatic feeding of the lifting table, coordinated transfer of the first and second plate pushing mechanisms, and lifting and avoiding mechanism of the clamp assembly, combined with synchronous operation of the labeling mechanism, significantly shortens the standby time, improves the production efficiency and cutting accuracy, and reduces the dependence on manual operation.

[0072] The technical solutions of the embodiments of the present application are described in detail below with reference to the drawings.

[0073] Referring to Figures 1 to 5 The present application provides a rear feeding numerical control panel saw, comprising:

[0074] The machine table 1 is provided with a pressing device 2 and a sawing device 3;

[0075] The feeding device 4 is located at the feeding side of the machine table 1 and comprises a frame 40, a lifting platform 41, a first pushing plate mechanism 42, a second pushing plate mechanism 43 and a labeling mechanism 44;

[0076] The frame 40 is provided with a feeding cavity for placing the lifting platform 41 and a conveying channel for conveying the plate 7; the lifting platform 41 is used to lift the stacked plate 7 to be horizontal with the conveying channel; the labeling mechanism 44 is used to label the plate 7; the second pushing plate mechanism 43 is used to push the lifted plate 7 to the conveying channel; the first pushing plate mechanism 42 comprises a first cross beam 420, a first motor, a first magnetic rack positioning structure, a plurality of side-by-side distributed clamp assemblies 421 and a lifting assembly 422 for driving the clamp assemblies 421 to lift; the two ends of the first cross beam 420 are slidably connected with the frame 40 through guide wheels; the first motor is fixedly arranged on the first cross beam 420 and is drivingly connected with the frame 40 through a first transmission shaft 423; a plurality of the clamp assemblies 421 are arranged on the side of the first cross beam 420 facing the machine table 1;

[0077] When the second pushing plate mechanism 43 pushes the next plate 7 into the conveying channel, the lifting assembly 422 drives the clamp assemblies 421 to lift to avoid the next plate 7, and the second pushing plate mechanism 43 pushes the plate 7 in the conveying channel to the machine table 1.

[0078] Specifically, the rear loading numerical control panel saw provided by the present application is used to solve the problem of long standby time and low efficiency caused by waiting for the next plate 7 to be loaded during sawing. The machine table 1 is provided with a pressing device 2 and a sawing device 3, wherein the pressing device 2 is used to fix the plate 7 during sawing to ensure cutting accuracy, and the sawing device 3 performs cutting operation of the plate 7. The feeding device 4 is located at the feeding side of the machine table 1, including a rack 40, a lifting table 41, a first push plate mechanism 42, a second push plate mechanism 43 and a labeling mechanism 44, the rack 40 is provided with a loading cavity for placing the lifting table 41 and a conveying channel for transferring the plate 7. The lifting table 41 lifts the stacked plate 7 to the horizontal position of the conveying channel, which is convenient for subsequent pushing operation; the labeling mechanism 44 prints and attaches labels on the plate 7 according to the processing requirements, realizing real-time identification of the information of the plate 7; the second push plate mechanism 43 pushes the lifted plate 7 to the conveying channel, and the first push plate mechanism 42 includes a first beam 420, a first motor, a first magnetic grid positioning structure, a plurality of parallel distributed clamp assemblies 421 and a lifting assembly 422 for driving the clamp assemblies 421 to lift, the two ends of the first beam 420 are slidingly connected with the rack 40 through guide wheels, the first motor is fixed on the first beam 420 and is drivingly connected with the rack 40 through a first transmission shaft 423, and a plurality of clamp assemblies 421 are arranged on the side of the first beam 420 facing the machine table 1. When the second push plate mechanism 43 pushes the next plate 7 into the conveying channel, the lifting assembly 422 drives the clamp assemblies 421 to rise to avoid the plate 7, and then the second push plate mechanism 43 pushes the plate 7 in the conveying channel to the machine table 1, while sawing the current plate 7, the feeding and positioning preparation of the next plate 7 are completed at the same time, avoiding the waiting link that the feeding must be started after the sawing is completed in the traditional equipment.

[0079] Wherein, the lifting assembly 422 refers to the mechanism for driving the clamp assembly 421 to move vertically, which can adopt a pneumatic cylinder, an electric push rod or a screw nut mechanism to realize the upward movement of the clamp assembly 421 to avoid the next board 7. When the second push plate mechanism 43 pushes the next board 7 into the conveying channel, the lifting assembly 422 is triggered to rise, so that the clamp assembly 421 avoids the new board 7, thereby the second push plate mechanism 43 can push the board 7 in the conveying channel to the machine table 1. In this embodiment, the first push plate mechanism 42 and the second push plate mechanism 43 work cooperatively by pushing the next board 7 while sawing the current board 7 and triggering the lifting assembly 422 to avoid, which avoids the waiting link in the traditional equipment that must wait for the sawing to be completed before starting the feeding, thereby realizing the continuous flow of the board 7. As a preferred embodiment, the rack 40 is provided with a feeding cavity and a conveying channel, the feeding cavity is used to accommodate the lifting platform 41 to store the stacked boards 7, and the conveying channel serves as a board 7 transfer path, and the structural design ensures the smooth flow of the board 7. The first motor can be a servo motor, the lifting assembly 422 can be a pneumatic cylinder, and the clamp assembly 421 can be a pneumatic clamp 4211 which is controlled to open and close to clamp the board 7, thereby ensuring the stability during the pushing process.

[0080] In this embodiment, the timing cooperation of the first push plate mechanism 42 and the second push plate mechanism 43 enables the feeding, labeling and pushing operations of the next board 7 to be performed in parallel during the sawing of the current board 7, which significantly shortens the production cycle. Specifically, the design of the lifting assembly 422 driving the clamp assembly 421 to rise to avoid ensures that there is no mechanical interference when the second push plate mechanism 43 pushes the new board 7, and the board 7 in the conveying channel can be continuously transferred to the machine table 1, thereby eliminating the idle waiting time between single sawing and improving the overall production efficiency of the equipment.

[0081] The working process of the rear feeding numerical control panel saw is as follows:

[0082] (1) The lifting platform 41 lifts the stacked boards 7 to be horizontal with the conveying channel;

[0083] (2) The second push plate mechanism 43 moves to the side wall of the lifted board 7, and stops at a preset position above the board 7 during the movement according to the sawing requirement, the labeling mechanism 44 prints a label and attaches it to the board 7 according to the processing requirement; after the labeling is completed, the second push plate mechanism 43 abuts against the board 7;

[0084] (3) The second push plate mechanism 43 pushes the board 7 into the conveying channel, and then the first push plate mechanism 42 pushes the board 7 into the machine table 1, the pressing device 2 presses the board 7, and the sawing device 3 performs sawing;

[0085] (4) In the sawing process, the second push plate mechanism 43 repeats step (2) on the next stack of plates 7;

[0086] (5) The second push plate mechanism 43 pushes the next plate 7 to the conveying channel and waits; after the current plate 7 completes a sawing, the pressing device 2 is lifted, the lifting assembly 422 of the first push plate mechanism 42 drives the clamp assembly 421 to rise and avoid; the second push plate mechanism 43 pushes the next plate 7 to abut against the current plate 7, and jointly pushes the two plates 7 to move to a preset sawing width;

[0087] (6) The pressing device 2 presses the current plate 7, and the sawing device 3 performs sawing; the clamp assembly 421 of the first push plate mechanism 42 is in an avoiding state, and the two plates 7 are continuously moved and sawed by the second push plate mechanism 43;

[0088] (7) If the remaining material of the current plate 7 after sawing is a waste plate, the second push plate mechanism 43 pushes the plate 7 to move based on the size information of the next plate 7; if the conveying channel length is sufficient to accommodate the third plate 7, the second push plate mechanism 43 performs step (2) on the third plate 7, while the second plate 7 is moved by the first push plate mechanism 42;

[0089] (8) Repeat the above steps to cyclically perform plate 7 processing.

[0090] The rear loading numerical control panel saw provided by the present application realizes multi-process synchronous circulation through the parallel and cooperative design of the labeling, feeding, loading, pressing and sawing processes. Among them, when the labeling station completes the plate 7 identification, the loading station synchronously conveys the plate 7 to be processed to the feeding port, and the pressing and sawing stations continuously process the fed plate 7. Compared with the traditional serial numerical control panel saw, the production efficiency is improved by about 40%, and the processing cycle of single batch of plates 7 is effectively shortened. However, the traditional supporting lifting platform 41 has the core problem of insufficient bearing capacity, and the rated bearing capacity is usually ≤4 tons, which limits the single batch loading amount (such as unable to accommodate a whole pile of 5-ton medium density fiberboard or particle board), and when the traditional lifting platform 41 is applied to the present application, the plate 7 needs to be frequently transported to the lifting platform 41 in batches through a forklift, which not only increases the auxiliary operation time (about 3-5 minutes for single transportation), but also destroys the continuity of the processing flow, which becomes the bottleneck of the overall efficiency improvement. For the above defects, please refer to Figure 6 and Figure 7The application further proposes that the lifting platform 41 comprises a feeding roller line 410, a hydraulic system 411, and upright columns 412 distributed on both sides of the roller line; the upright columns 412 are provided with grooves extending in the height direction; two transmission fixed pulleys 413 are arranged on both sides of the feeding roller line 410, and the transmission fixed pulleys 413 are slidingly arranged in the grooves; the output end of the hydraulic system 411 is connected with a transmission rod 414, and the transmission rod 414 is connected with four steel wires 416; the feeding roller line 410 is provided with a reversing fixed pulley 415 at the bottom, and each steel wire 416 is wound around one of the transmission fixed pulleys 413 after being reversed by the reversing fixed pulley 415, and the end of the steel wire 416 is fixed to the top of the groove, so that the feeding roller line 410 is synchronously lifted.

[0091] Specifically, the lifting platform 41 is composed of the feeding roller line 410, a hydraulic driving system, and symmetrically distributed upright columns 412. The upright columns 412 are provided with guide grooves in the height direction, and the grooves are embedded with quenched guide rails to ensure the straightness and stability during lifting. Two groups of transmission fixed pulleys 413 are arranged on both sides of the feeding roller line 410, and the pulleys are slidingly embedded in the guide grooves to realize lifting guidance. The driving system adopts hydraulic driving, and the output end is connected with a horizontal transmission rod 414, and the two ends of the transmission rod 414 are symmetrically connected with four high-strength steel wires 416. The feeding roller line 410 is provided with two groups of reversing fixed pulleys 415 at the bottom, and each steel wire 416 is wound around one of the transmission fixed pulleys 413 after being reversed by one or two reversing fixed pulleys 415, and the end of the high-strength steel wire 416 is fixed to the top end plate of the guide groove. When the plate 7 needs to be lifted, the transmission rod 414 is driven to stretch and contract in the horizontal direction by the hydraulic system 411, the steel wire 416 is pulled to drive the feeding roller line 410 to synchronously and smoothly lift along the guide groove. Exemplarily, the feeding roller line 410 is composed of an array of metal rollers, and the conveying direction can be arranged to be towards the machine table 1 or parallel to the sawing direction of the machine table 1. When feeding from the rear, the plate can be placed on the lifting platform 41 by a forklift, or a power roller table can be placed on the left side or right side of the lifting platform 41, and the plate is placed on the power roller table by the forklift, and the plate is conveyed to the lifting platform 41 by the power roller table. The hydraulic system 411 specifically adopts a hydraulic pump station cooperating with a double-acting oil cylinder. The upright columns 412 specifically adopt a square steel pipe structure, and the grooves are T-shaped grooves; the transmission fixed pulleys 413 specifically adopt cast iron pulleys with deep groove ball bearings; the steel wires 416 specifically adopt stainless steel materials; and the reversing fixed pulleys 415 are specifically installed on fixed supports.

[0092] In the embodiment, the transmission rod 414 is connected to the output end of the hydraulic system 411, and the transmission rod 414 uniformly distributes power to the four steel wires 416; each steel wire 416 is turned through the reversing fixed pulley 415 at the bottom of the feeding drum line 410 and is wound around a transmission fixed pulley 413; the transmission fixed pulley 413 is slidingly arranged in a groove of the vertical column 412, and the groove provides vertical guidance; when the hydraulic system 411 drives the transmission rod 414 to move, the four steel wires 416 are synchronously retracted and extended, driving the transmission fixed pulley 413 to vertically slide in the groove, thereby driving the feeding drum line 410 to synchronously ascend and descend, achieving the design of a large bearing parameter and controlling the precision of the feeding drum line 410 within ±2 mm, thereby solving the problem of frequent transfer of the traditional lifting platform 41 and further improving the continuous operation capacity and production efficiency of the equipment, and providing reliable supporting for the efficient operation of the subsequent feeding numerical control panel saw.

[0093] Specifically, the feeding stop 419 can adopt a fixed baffle or an adjustable stopper, and the top of the baffle is further provided with a roller to prevent scratching between the plate 7 and the stopper. In order to ensure that the edge of the plate 7 is aligned with the reference surface of the rack 40, the problem of excessive position error of the plate 7 when the forklift is feeding can be prevented. The travel switch 417 adopts a mechanical microswitch or a photoelectric sensor, which is used to prevent the lifting platform 41 from excessively rising or descending and to ensure the safety of the equipment operation. The first sensor 418 can adopt an ultrasonic sensor or a laser distance measuring sensor, which is used to monitor the stacking height of the plate 7 in real time, so that the lifting platform 41 is automatically adjusted to be horizontal with the conveying channel. The second sensor can adopt a photoelectric sensor or a pressure sensor, which is used to accurately identify whether the plate 7 is in place and avoid misjudgment of the empty load condition. When the lifting platform 41 lifts the plate 7, the second sensor first confirms the presence of the plate 7, and the first sensor 418 continuously monitors the height change data, so that the lifting platform 41 is accurately adjusted to the horizontal position of the conveying channel; at the same time, the feeding stop 419 guides the edge of the plate 7 to be attached to the reference surface of the rack 40; the travel switch 417 triggers when the lifting platform 41 moves to the preset limit position, forcibly stopping the drum line from ascending and descending, preventing the overtravel risk caused by the out-of-control hydraulic system 411. Under this setting, automatic closed-loop control of the feeding process can be achieved, and height positioning, state detection and edge alignment can be completed without manual intervention.

[0094] Further, as shown in Figures 8 to 12 the second push plate mechanism 43 includes a second cross beam 431, a second motor, a second magnetic grid positioning structure and a plurality of push plate roller assemblies 432;

[0095] both ends of the second cross beam 431 are rollingly connected to the rack 40 through guide wheels, the second motor is arranged on the second cross beam 431, the second motor is drivingly connected to the rack 40 through a second transmission shaft 433, and the push plate roller assembly 432 is arranged on the side of the second cross beam 431 away from the first push plate mechanism 42.

[0096] The labeling mechanism 44 comprises a labeling assembly 440, a printing assembly 441 and a driving assembly 442; the labeling assembly 440 is arranged on one side of the second cross beam 431 close to the first push plate mechanism 42 and is in sliding fit with the second cross beam 431, the driving assembly 442 is used for driving the labeling assembly 440 to move along the length direction of the second cross beam 431; and the printing assembly 441 is located at the end of the second cross beam 431. The second cross beam 431 is in rolling fit with the frame 40, and the precise horizontal movement of the second cross beam 431 is realized by the second motor driving the second transmission shaft 433, so as to establish a stable movement reference for the plate 7 pushing; the push plate roller assembly 432 is located on the side of the second cross beam 431 away from the first push plate mechanism 42, and directly acts on the surface of the plate 7 in the pushing process, and the layout ensures that the pushing action and the labeling operation do not interfere with each other; at the same time, the labeling assembly 440 is in sliding fit with the second cross beam 431, and the position is independently adjusted along the length direction of the second cross beam 431 through the driving assembly 442, so that the labeling assembly 440 can adjust the reference coordinates synchronously with the overall displacement of the second cross beam 431, and match the label position in real time in the plate 7 pushing process; the printing assembly 441 is arranged at the end of the second cross beam 431, the label generation and transmission path are optimized, so that the labeling action is completed at the same time when the second push plate mechanism 43 pushes the plate 7, the additional downtime caused by the fixed labeling mechanism 44 in the traditional scheme is eliminated, and the seamless connection of pushing and labeling is realized.

[0097] The process of the labeling mechanism 44 is as follows:

[0098] When the second push plate mechanism 43 moves to a predetermined position above the plate 7 (such as 100 mm away from the front end of the plate 7), the driving assembly 442 drives the labeling assembly 440 to move along the second cross beam 431 to the center position in the width direction of the plate 7. The labeling cylinder 4401 extends, pushes the labeling head 4405 to descend to a position 5 mm away from the surface of the plate 7, the rotary cylinder 4404 rotates by 90°, so that the labeling head 4405 is attached to the surface of the plate 7. The external negative pressure device detects the pressure value of the labeling head 4405 through the fifth sensor, releases the label and completes the attachment. Then the labeling cylinder 4401 is retracted, the rotary cylinder 4404 is reset, and the next labeling is performed.

[0099] Further, the push plate roller assembly 432 comprises a push plate mounting seat 4320, a push plate 4321, a pressure roller mounting seat 4322, a cylinder, a back roller mounting seat 4324 and a fourth sensor 4325;

[0100] The push plate mounting seat 4320 is fixed on the second cross beam 431, and the push plate 4321 is in sliding fit with the push plate mounting seat 4320 in the height direction; the pressure wheel mounting seat 4322 is arranged on the side of the push plate 4321 facing the first push plate mechanism 42, the pressure wheel mounting seat 4322 is provided with a plurality of horizontally arranged pressure wheels 4326, the leaning wheel mounting seat 4324 is fixed on the push plate mounting seat 4320 through a support, and the leaning wheel mounting seat 4324 is provided with leaning wheels on both sides in the length direction of the second cross beam 431;

[0101] The output end of the air cylinder is hinged to the push plate 4321, and the fixed end is hinged to the leaning wheel mounting seat 4324; the leaning wheel mounting seat 4324 is provided with a fourth sensor 4325 for detecting the edge of the plate 7, and the second motor drives the second cross beam 431 to move horizontally in the feeding cavity according to the signal of the fourth sensor 4325, so that the leaning wheel mounting seat 4324 moves to the outside of the edge of the plate 7;

[0102] The push plate mounting seat 4320 is provided with a magnetic scale 4327 for detecting the lifting height of the push plate 4321 and a reading head 4328 for detecting the lifting height of the push plate 4321. The fourth sensor 4325 integrated in the leaning wheel mounting seat 4324 obtains the position information of the edge of the plate 7 in real time, and the second motor drives the second cross beam 431 to move horizontally in the feeding cavity according to the information, so that the leaning wheel mounting seat 4324 is accurately aligned with the outside of the edge of the plate 7; at the same time, the magnetic scale 4327 and the reading head 4328 configured on the push plate mounting seat 4320 continuously monitor the lifting height of the push plate 4321, so as to ensure that the push plate 4321 maintains the best working height during the pushing process; the air cylinder synchronously adjusts the lifting of the push plate 4321 and the position of the leaning wheel mounting seat 4324 through the hinge structure, and the horizontally arranged pressure wheels 4326 on the pressure wheel mounting seat 4322 press the surface of the plate 7 to prevent warping or sliding during pushing, so as to form a complete positioning and pushing control chain, and realize the stable and accurate transfer of the plate 7. In some embodiments, the fourth sensor 4325 can be a diffuse reflection photoelectric sensor, the magnetic scale 4327 can be a magnetic grating linear encoder, the push plate 4321 is in sliding fit with the push plate mounting seat 4320 through a dovetail groove guide rail structure, and the pressure wheels 4326 on the pressure wheel mounting seat 4322 are made of polyurethane material, so as to enhance the friction force and protection effect on the surface of the plate 7.

[0103] Further, as shown in Figure 13 The labeling assembly 440 includes a labeling mounting seat 4400, a labeling air cylinder 4401, an optical axis 4402, a guide seat 4403, a rotary air cylinder 4404 and a labeling head 4405; the driving assembly 442 is a servo motor; one side of the labeling mounting seat 4400 is provided with a sliding block, the second cross beam 431 is provided with a guide rail extending in the length direction, and the sliding block is in sliding connection with the guide rail;

[0104] The second cross beam 431 is provided with a rack extending in the length direction, the servo motor is fixed on the labeling mounting seat 4400, and the output shaft of the servo motor is provided with a gear engaged with the rack; the labeling cylinder 4401 is fixed on the labeling mounting seat 4400, and the output end of the labeling cylinder 4401 is connected with the rotary cylinder 4404; the output end of the rotary cylinder 4404 is connected with the labeling head 4405, the labeling head 4405 is connected with an external negative pressure device through the fifth sensor, and the fifth sensor is used for detecting the pressure value of the labeling head 4405; the rotary cylinder 4404 is vertically provided with an optical axis 4402, the optical axis 4402 is provided with a guide seat 4403, and the guide seat 4403 is connected with the labeling cylinder 4401.

[0105] Further, the lifting assembly 422 comprises a first clamp cylinder; the clamp assembly 421 comprises the mounting plate 4210, a clamp 4211, a second clamp cylinder 4211 and a pair of shot switches 4213;

[0106] The first clamp cylinder is fixed on the first cross beam 420, the output shaft of the first clamp cylinder is connected with the mounting plate 4210, and the mounting plate 4210 is in sliding connection with the first cross beam 420; the clamp 4211 is arranged on the mounting plate 4210; the second clamp cylinder 4211 is fixed on the mounting plate 4210, and the output end of the second clamp cylinder 4211 is connected with the clamp 4211 to drive the clamp 4211 to open and close;

[0107] The emitting end of the pair of shot sensors is located at the first end of the first cross beam 420, and the receiving end is located at the second end of the first cross beam 420,

[0108] Each clamp assembly 421 is provided with a sensing assembly on one side, the sensing assembly comprises two sensing metal plates 4214 arranged at intervals in the height direction, a gap is arranged between the two sensing metal plates 4214, and the connecting line between the emitting end and the receiving end penetrates the gap of each sensing assembly.

[0109] Specifically, the first clamp cylinder drives the mounting plate 4210 to slide in the vertical direction of the first cross beam 420, so that the clamp assembly 421 can be quickly lifted to the target height according to the avoidance instruction; at the same time, the emitting end and the receiving end of the pair of shot sensors establish a penetrating light beam path at the two ends of the first cross beam 420, when the clamp assembly 421 is lifted, the gap of the sensing assembly interrupts the light beam in turn, and discrete on-off signals are generated; the control system judges the current height position of the clamp assembly 421 in real time according to the signals, and dynamically adjusts the stroke of the first clamp cylinder, so as to ensure that the clamp assembly 421 is accurately lifted to the avoidance height when the second push plate mechanism 43 pushes the next plate 7, thereby forming an unobstructed plate 7 conveying channel.

[0110] Further, the pressing device 2 comprises a pressing beam, a lifting driving member, a first side leaning assembly 22 and a second side leaning assembly 23;

[0111] The machine table 1 has a workbench, and the pressing beam is above the workbench; the lifting drive includes two symmetrically arranged pressing cylinders, which are fixedly arranged on the machine table 1, and the output ends of the pressing cylinders are connected with the pressing beam;

[0112] The first side-lying assembly 22 includes a fixed beam 220, a side-lying mounting seat 221, a transmission motor 222, and two symmetrically arranged side-lying wheels 223; the fixed beam 220 is above the pressing beam and is connected with the machine table 1 at both ends; the transmission motor 222 is fixedly arranged on the side-lying mounting seat 221, and the side-lying mounting seat 221 is in sliding connection with the fixed beam 220; the transmission motor 222 is in transmission connection with the fixed beam 220 through a gear and rack structure; the side-lying mounting seat 221 is symmetrically provided with two first side-lying cylinders 224, and the two first side-lying cylinders 224 are respectively located on both sides of the pressing beam; the output end of each first side-lying cylinder 224 is connected with a side-lying wheel 223;

[0113] The second side-lying assembly 23 includes a side-lying plate and a second side-lying cylinder, the second side-lying cylinder is arranged on the bottom surface of the workbench, the workbench is provided with a sawing gap, the output end of the second side-lying cylinder is connected with the side-lying plate, and the side-lying plate can be telescoped in the sawing gap.

[0114] Further, the discharge side of the machine table 1 is also provided with a plurality of air floating tables 5, the outer side of the air floating table 5 is provided with a plurality of front feeding auxiliary rollers 50 and side feeding auxiliary rollers 51; one side of the air floating table 5 is provided with a waste breaking device 6 for breaking the excess cutting waste. The discharge side of the machine table 1 is provided with the air floating table 5 and the front feeding auxiliary roller 50 and the side feeding auxiliary roller 51, so that the front feeding and side feeding of the plate can be realized.

[0115] The application also provides a control method of the rear feeding numerical control panel saw, which comprises the following steps:

[0116] (1) The lifting table 41 lifts the stacked plates 7 to be horizontal with the conveying channel.

[0117] (2) The second plate pushing mechanism 43 moves to the side wall of the lifted plate 7, and stops at a preset position above the plate 7 during the movement according to the sawing requirement; the label sticking mechanism 44 prints a label according to the processing requirement and sticks the label to the plate 7; after the label sticking is completed, the second plate pushing mechanism 43 abuts against the plate 7.

[0118] Specifically, the servo motor drives the labeling assembly 440 to slide along the second cross beam 431 by means of a gear rack, and a second magnetic grid positioning mechanism (magnetic grid ruler) feeds back position information in real time to ensure that the labeling assembly 440 can accurately reach the specified point in the width direction of the plate 7. The printing assembly 441 generates a label containing the ID, size, and process parameters of the plate 7 in advance according to the sawing requirements, the labeling assembly 440 moves to the printing assembly 441 to take the label, and then moves to the preset area. After reaching the preset area, the labeling cylinder 4401 extends, the rotating cylinder 4404 and the labeling head 4405 are lowered to a distance of 5 mm from the surface of the plate 7, then the rotating cylinder 4404 is rotated by 90°, and the labeling head 4405 is attached to the plate 7. The label is adsorbed by the negative pressure device after being printed, and finally when the labeling head 4405 contacts the plate 7, the fifth sensor detects that the pressure reaches the preset threshold, triggers the label to be released, the labeling cylinder 4401 retracts, and the rotating cylinder 4404 resets. Taking the length of the plate 7 as 2440 mm (conveying direction) and the preset sawing width as 600 mm as an example, the second push plate mechanism 43 moves to the front end of the plate 7 by 600 mm for the first time; moves to 1200 mm for the second time; moves to 1800 mm for the third time; and moves to 2400 mm (corresponding to the last 640 mm cutting unit, covering the remaining length) for the fourth time. The labeling at each position is in the center (or a preset process identification area) of the width direction of the plate 7 to ensure that the label can be completely retained on the finished plate after subsequent cutting. Specifically, the second push plate mechanism 43 is started, the fourth sensor 4325 detects the edge of the plate 7, and the second motor drives the second cross beam 431 to move to the outside of the plate 7 by 10 mm. After the second push plate mechanism 43 moves to the 600 mm position along the length direction of the plate 7 and stops, the servo motor of the labeling assembly 440 drives it to the center of the width direction of the plate 7, then the labeling cylinder 4401 is lowered, the rotating cylinder 4404 adjusts the angle, and the labeling head 4405 completes the attachment and resets. Repeat the above steps to move to 1200 mm, 1800 mm, and 2400 mm positions in turn to complete the remaining 3 times of labeling. After labeling is completed, the second push plate mechanism 43 moves to the edge of the plate 7, the wheel mounting seat 4324 abuts against the side wall of the plate 7, and the edge position is confirmed by the fourth sensor 4325. The push plate 4321 cylinder drives the push plate 4321 to descend, and the pressure wheel 4326 presses the surface of the plate 7 to prevent sliding during pushing.

[0119] (3) The second push plate mechanism 43 pushes the plate 7 into the conveying channel, and then the first push plate mechanism 42 pushes the plate 7 into the machine table 1. The pressing device 2 presses the plate 7, and the sawing device 3 performs sawing.

[0120] (4) During sawing, the second push plate mechanism 43 repeats step (2) for the next stack of plates 7.

[0121] (5) The second plate pushing mechanism 43 pushes the next plate 7 to the conveying channel and waits; after the current plate 7 completes a sawing, the pressing device 2 is lifted, the lifting assembly 422 of the first plate pushing mechanism 42 drives the clamp assembly 421 to rise and avoid, and the second plate pushing mechanism 43 pushes the next plate 7 to abut against the current plate 7 and moves the two plates 7 to a preset sawing width. For example, the preset sawing width is 600 mm. The current plate 7 (such as 1220*2440 mm) has completed a sawing, and the remaining length is 1000 mm; the second plate pushing mechanism 43 pushes the next plate 7 to abut against the current plate 7, and moves 600 mm to the sawing position together, so that a 600 mm wide finished product plate is obtained after sawing.

[0122] (6) The pressing device 2 presses the current plate 7, and the sawing device 3 performs sawing; the clamp assembly 421 of the first plate pushing mechanism 42 is in an avoiding state, and the two plates 7 are continuously moved and sawed by the second plate pushing mechanism 43.

[0123] (7) If the remaining material of the current plate 7 after sawing is a waste plate, the second plate pushing mechanism 43 pushes the plate 7 to move based on the size information of the next plate 7; if the conveying channel length is sufficient to accommodate the third plate 7, the second plate pushing mechanism 43 performs step (2) on the third plate 7, and the second plate pushing mechanism 42 pushes the second plate 7 to move. For example, the conveying channel length is designed to be 4000 mm, and the third plate 7 is 1220*2440 mm (the length direction is placed along the conveying channel). Since 1220*3=3660 mm<4000 mm, the channel can accommodate the third plate 7; at this time, the second plate pushing mechanism 43 performs the step preparation on the third plate 7, and the first plate pushing mechanism 42 pushes the second plate 7 to move into the machine table 1.

[0124] (8) Repeat the above steps to circulate the plate 7 processing.

[0125] In this embodiment, by combining the continuous pushing function of the second plate pushing mechanism 43 with the dynamic avoiding mechanism of the first plate pushing mechanism 42 in a time sequence coordinated manner, the feeding and step preparation of the next plate 7 are completed while sawing the current plate 7, so that the idle waiting time between single sawing is eliminated, and the overall production efficiency is improved. Specifically, the second plate pushing mechanism 43 performs the step preparation operation synchronously during sawing, avoiding the waiting link that the traditional equipment must wait for the sawing to be completed before starting the feeding; at the same time, the lifting assembly 422 of the first plate pushing mechanism 42 drives the clamp assembly 421 to rise and avoid, ensuring that there is no mechanical interference when the new plate 7 is pushed, optimizing the material flow through dynamic scheduling and parallel operation, significantly shortening the production cycle, and improving the equipment utilization.

[0126] Having described various embodiments of the application, it is to be understood that the above description is meant not to limit and not to encompass all of the possible embodiments. Many modifications and variations of this application can be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. It is intended that the scope of the application be defined by the scope of the patent and by the claims as allowed by the patent office, which can include adaptations based on the description, equivalents, and / or substitutions of elements individually or collectively to the entire disclosure.

Claims

1. A rear loading numerical control panel saw, characterized in that, The utility model relates to a kind of plate feeding machine, including: Machine table, which is provided with material pressing device and saw cutting device; Feeding device is located in the feeding side of machine table, including rack, lifting platform, first push plate mechanism, second push plate mechanism and labeling mechanism; The rack is provided with a feeding cavity for placing the lifting platform and a conveying channel for transferring the plate; the lifting platform is used to lift the stacked plate to be level with the conveying channel; the labeling mechanism is used to label the plate; the second push plate mechanism is used to push the lifted plate into the conveying channel; the first push plate mechanism includes a first beam, a first motor, a first magnetic grid positioning structure, a plurality of side-by-side distributed clamp assemblies and a lifting assembly for driving the clamp assemblies to lift; the two ends of the first beam are slidingly connected with the rack through guide wheels; the first motor is fixedly arranged on the first beam and is drivingly connected with the rack through a first transmission shaft; a plurality of clamp assemblies are arranged on the side of the first beam facing the machine table; When the second push plate mechanism pushes the next plate into the conveying channel, the lifting assembly drives the clamp assemblies to rise to avoid the next plate, and the second push plate mechanism pushes the plate in the conveying channel onto the machine table.

2. The rear loading numerical controlled panel saw of claim 1, wherein, The lifting platform includes a feeding drum line, a hydraulic system and a column distributed on both sides of the drum line; the column is provided with a groove extending in the height direction; two transmission fixed pulleys are arranged on both sides of the feeding drum line, and the transmission fixed pulleys are slidingly arranged in the groove; the output end of the hydraulic system is connected with a transmission rod, and the transmission rod is connected with four steel wires; a reversing fixed pulley is arranged at the bottom of the feeding drum line, and each steel wire is wound around one of the transmission fixed pulleys after being reversed by the reversing fixed pulley; the end of the steel wire is fixed to the top of the groove, so that the feeding drum line is synchronously lifted.

3. The rear loading numerical control panel saw of claim 2, wherein, The lifting platform further includes a travel switch, a first sensor, a second sensor and a plurality of feeding stops; the feeding stops are used to align the feeding of the plate, and the feeding stops are arranged side by side on the side of the feeding drum line close to the rack; the travel switch is arranged outside the column to limit the lifting height of the drum line; The first sensor is arranged on the rack to detect the feeding height of the plate; the second sensor is arranged at the bottom of the feeding drum line to detect whether there is a plate.

4. The post-loading numerical control panel saw according to claim 1, characterized in that, The second push plate mechanism includes a second beam, a second motor, a second magnetic grid positioning structure and a plurality of push plate roller assemblies; The two ends of the second beam are rollingly connected with the rack through guide wheels, the second motor is arranged on the second beam, the second motor is drivingly connected with the rack through a second transmission shaft, and the push plate roller assemblies are arranged on the side of the second beam away from the first push plate mechanism; The labeling mechanism includes a labeling assembly, a printing assembly and a driving assembly; the labeling assembly is arranged on the side of the second beam close to the first push plate mechanism and is slidingly connected with the second beam; the driving assembly is used to drive the labeling assembly to move along the length direction of the second beam; the printing assembly is arranged at the end of the second beam.

5. The rear loading numerical controlled panel saw of claim 4, wherein, The push plate roller assembly includes a push plate mounting seat, a push plate, a pressure roller mounting seat, an air cylinder, a wheel mounting seat and a fourth sensor; The push plate mounting seat is fixed on the second cross beam, and the push plate is in sliding fit with the push plate mounting seat in the height direction; the pressure wheel mounting seat is arranged on the side of the push plate facing the first push plate mechanism, and the pressure wheel mounting seat is provided with a plurality of horizontally arranged pressure wheels; the leaning wheel mounting seat is fixed on the push plate mounting seat through a support, and the leaning wheel mounting seat is provided with leaning wheels on both sides in the length direction of the second cross beam; The output end of the air cylinder is hinged to the push plate, and the fixed end is hinged to the leaning wheel mounting seat; the leaning wheel mounting seat is provided with a fourth sensor for detecting the edge of the plate; the second motor drives the second cross beam to move horizontally in the feeding cavity according to the signal of the fourth sensor, so that the leaning wheel mounting seat moves to the outside of the edge of the plate; The push plate mounting seat is provided with a magnetic scale for detecting the lifting height of the push plate and a reading head for detecting the lifting height of the push plate.

6. The rear loading numerical controlled panel saw of claim 4, wherein, The labeling assembly comprises a labeling mounting seat, a labeling air cylinder, an optical axis, a guide seat, a rotary air cylinder and a labeling head; the driving assembly is a servo motor; one side of the labeling mounting seat is provided with a sliding block, and the second cross beam is provided with a guide rail extending in the length direction, and the sliding block is in sliding connection with the guide rail; The second cross beam is provided with a rack extending in the length direction, the servo motor is fixed on the labeling mounting seat, and the output shaft of the servo motor is provided with a gear in meshing connection with the rack; the labeling air cylinder is fixed on the labeling mounting seat, and the output end of the labeling air cylinder is connected with the rotary air cylinder; the output end of the rotary air cylinder is connected with the labeling head; the labeling head is connected with an external negative pressure device through a fifth sensor, and the fifth sensor is used for detecting the pressure value of the labeling head; the rotary air cylinder is vertically provided with an optical axis, the optical axis is provided with a guide seat, and the guide seat is connected with the labeling air cylinder.

7. The rear loading numerical controlled panel saw of claim 1, wherein, The lifting assembly comprises a first clamp air cylinder; the clamp assembly comprises the mounting plate, a clamp, a second clamp air cylinder and a pair of sensors; The first clamp air cylinder is fixed on the first cross beam, and the output shaft thereof is connected with the mounting plate; the mounting plate is in sliding connection with the first cross beam; the clamp is arranged on the mounting plate; the second clamp air cylinder is fixed on the mounting plate, and the output end thereof is connected with the clamp to drive the clamp to open and close; The emitting end of the pair of sensors is located at the first end of the first cross beam, and the receiving end is located at the second end of the first cross beam; one side of each clamp assembly is provided with a sensing assembly, the sensing assembly comprises two sensing metal plates arranged at intervals in the height direction, a gap is arranged between the two sensing metal plates, and the connecting line between the emitting end and the receiving end penetrates the gap of each sensing assembly.

8. The rear loading numerical controlled panel saw of claim 1, wherein, The pressing device comprises a pressing beam, a lifting driving member, a first side leaning assembly and a second side leaning assembly; The machine table has a workbench, and the pressing beam is located above the workbench; the lifting driving member comprises two symmetrically arranged pressing air cylinders, the pressing air cylinders are fixed on the machine table, and the output ends of the pressing air cylinders are connected with the pressing beam. The first side-lying assembly comprises a fixed beam, a side-lying mounting seat, a transmission motor and two symmetrically arranged side-lying wheels; the fixed beam is located above the pressing beam and is connected to the machine table at both ends; the transmission motor is fixedly arranged on the side-lying mounting seat, and the side-lying mounting seat is in sliding connection with the fixed beam; the transmission motor is in transmission connection with the fixed beam through a gear and rack structure; the side-lying mounting seat is symmetrically provided with two first side-lying cylinders, and the two first side-lying cylinders are respectively located on both sides of the pressing beam; the output end of each first side-lying cylinder is connected with a side-lying wheel. The second side-lying assembly comprises a side-lying plate and a second side-lying cylinder, the second side-lying cylinder is arranged on the bottom surface of the workbench, the workbench is provided with a sawing gap, the output end of the second side-lying cylinder is connected with the side-lying plate, and the side-lying plate can be telescoped in the sawing gap.

9. The rear loading numerical controlled panel saw of claim 1, wherein, The discharge side of the machine table is also provided with a plurality of air floating tables, the outer side of the air floating table is provided with a plurality of front loading auxiliary rollers and side loading auxiliary rollers; one side of the air floating table is provided with a waste breaking device for breaking the excess cutting waste.

10. A control method for a rear loading panel saw, characterized in that, The rear loading numerical control panel saw is realized based on any one of claims 1-9, and the method comprises: (1) the lifting platform lifts the stacked boards to be horizontal with the conveying channel; (2) the second push plate mechanism moves to the side wall of the lifted board, and stops at a preset position above the board during the movement according to the sawing requirement, the labeling mechanism prints a label according to the processing requirement and attaches it to the board; after completing the labeling, the second push plate mechanism abuts against the board; (3) the second push plate mechanism pushes the board into the conveying channel, and then the first push plate mechanism pushes the board into the machine table, the pressing device compresses the board, and the sawing device performs sawing; (4) during the sawing, the second push plate mechanism repeats step (2) for the next stacked board; (5) the second push plate mechanism pushes the next board to the conveying channel and waits; after the current board is sawed once, the pressing device is lifted, the lifting assembly of the first push plate mechanism drives the clamp assembly to rise and avoid; the second push plate mechanism pushes the next board to abut against the current board, and moves the two boards to a preset sawing width; (6) the pressing device compresses the current board, and the sawing device performs sawing; the clamp assembly of the first push plate mechanism is in an avoiding state, and the two boards are continuously moved and sawed by the second push plate mechanism; (7) if the remaining material of the current board after sawing is a waste board, the second push plate mechanism pushes the board to move based on the size information of the next board; if the length of the conveying channel is sufficient to accommodate the third board, the second push plate mechanism performs step (2) for the third board, and the second push plate mechanism pushes the second board to move; (8) repeat the above steps to cyclically perform the board processing.

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