A type of through-type door frame saw

Abstract

This application relates to the technical field of woodworking saws, specifically to a through-type door frame saw, including a frame with a certain length in the axial direction and a control system. A feeding system, a sawing system and a unloading system are sequentially arranged on the frame. The feeding system includes a worktable arranged in the transverse direction, a fixed support located on one side of the worktable, a width clamping mechanism located on the other side of the worktable, and a pushing mechanism. The pushing mechanism includes a pushing unit and a pushing drive unit located above the worktable. Under the drive of the pushing drive unit, the pushing unit can move back and forth along the worktable.

Description

Technical Field

[0001] This application relates to the technical field of woodworking saws, specifically to a through-type door frame saw. Background Technology

[0002] It is known that door frames need to be sawed along their length before the slots are machined to obtain a predetermined splicing end face, such as a flat splicing end face or a 45° beveled splicing end face. Existing technology uses a door frame saw to complete the sawing process. The door frame panel is placed on a worktable, and the sawing system or worktable is moved laterally to cut both ends of the door frame panel along its length.

[0003] For example, a sawing machine described in Chinese invention patent application CN113650099A, entitled "CNC Door Leaf Square Saw," includes a frame assembly, a worktable assembly, and a cutting assembly. The frame assembly includes a base, on which a crossbeam is mounted. The worktable assembly includes a work platform for placing and fixing door leaf workpieces, which is positioned on the base and below the crossbeam. The cutting assembly is movably mounted on the crossbeam and includes a first transverse sawing mechanism, a second transverse sawing mechanism, and a longitudinal sawing mechanism. The crossbeam also includes a clearance structure, which includes a first transverse cutting beam positioned along the moving direction of the first transverse sawing mechanism. One end of the first transverse cutting beam is located outside the vertical projection of the worktable, and the first transverse sawing mechanism is movably mounted on the first transverse cutting beam.

[0004] Therefore, after the existing door frame saw completes the sawing of the door frame, the door frame panel needs to be transferred to the next process by means of transportation, and cannot be paralleled with the subsequent process. This affects the production efficiency and increases the labor intensity. Utility Model Content

[0005] This application relates to a through-type door frame saw, which avoids the cumbersome operation of transferring the sawn part to the next process step, as required by existing door frame saws. It can directly operate in parallel with the next process step, improving production efficiency and reducing labor intensity. The specific technical solution adopted is as follows:

[0006] A through-type door saw includes a frame with a certain length in the axial direction and a control system. A feeding system, a sawing system and a unloading system are sequentially arranged on the frame. The feeding system includes a worktable arranged in the transverse direction, a fixed support located on one side of the worktable, a width clamping mechanism located on the other side of the worktable, and a pushing mechanism. The pushing mechanism includes a pushing unit and a pushing drive unit located above the worktable. Under the drive of the pushing drive unit, the pushing unit can move back and forth along the worktable.

[0007] Preferably, the pusher drive unit is a servo-driven rack and pinion transmission mechanism, wherein the rack and track of the pusher drive unit are arranged axially and located on one side of the worktable, and the pusher unit is mounted on the sliding seat of the pusher drive unit.

[0008] Preferably, the pushing unit includes a connecting arm connected to the sliding seat and a push plate mounted through the connecting arm.

[0009] Preferably, the push plate is mounted on the connecting arm via an adjusting cylinder, which can extend and retract longitudinally to adjust the height of the push plate.

[0010] Preferably, a limit switch is provided at the front end of the push plate.

[0011] Preferably, the feeding system further includes a pressure roller mechanism, which includes a plurality of pressure rollers spaced apart along the axial direction and a lifting drive that drives the plurality of pressure rollers to lift or lower, wherein the lifting drive is a planar linkage mechanism.

[0012] Preferably, the lifting drive includes a first link arranged laterally, a plurality of second links hinged to the frame, a third link arranged laterally, and a linkage mechanism drive. The plurality of second links are parallel to each other and spaced apart axially. The two ends of the second links are respectively hinged to the first link and the third link. The linkage mechanism drive is connected to the third link and can drive the third link to move axially.

[0013] Preferably, the linkage mechanism is driven by a telescopic cylinder fixedly mounted on the frame.

[0014] Preferably, the pressing roller is mounted on the lifting drive via a synchronous anti-vibration component, which is a spring-coupled double crank connecting rod mechanism.

[0015] Preferably, the pressure roller mechanism is located between the pushing unit and the pushing drive unit, and the pushing unit and the pushing drive unit are connected by a connecting arm, and the connecting arm has a bent structure to avoid the pressure roller mechanism.

[0016] Preferably, the through-type door frame saw further includes a waste discharge system, which includes a first inclined plate arranged longitudinally and a second inclined plate located below the first inclined plate. The first inclined plate is located between the loading system and the unloading system, and the second inclined plate is inclined from one side of the frame to the other side.

[0017] Preferably, the waste discharge system further includes an ejection unit, which is capable of being ejected or retracted laterally, and the ejection unit is provided with a follower roller.

[0018] The through-type door frame saw using the technical solution of this application can avoid the cumbersome operation of transferring the saw to the next process after cutting, which is present in the existing door frame saw. It can be directly connected to the next process, which improves production efficiency and reduces labor intensity. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide further explanation of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0020] Figure 1 This is a schematic diagram of a through-type door frame saw provided in an embodiment of this application.

[0021] Figure 2 This is a schematic diagram of a feeding system provided in an embodiment of this application.

[0022] Figure 3 This is a schematic diagram of a feeding unit provided in an embodiment of this application.

[0023] Figure 4 This is a schematic diagram of a pressure roller mechanism provided in an embodiment of this application.

[0024] Figure 5 This is a schematic diagram of a sawing system provided in an embodiment of this application.

[0025] Figure 6 This is a schematic diagram of a waste discharge system provided in an embodiment of this application.

[0026] Figure 7 This is a schematic diagram of a push-out unit provided in an embodiment of this application.

[0027] In the attached diagrams: 10. Frame; 20. Feeding system; 21. Workbench; 22. Fixed support; 23. Width clamping mechanism; 24. Pushing mechanism; 241. Pushing unit; 2411. Connecting arm; 2412. Push plate; 2413. Adjusting cylinder; 2414. Limit switch; 242. Pushing drive unit; 25. Pressure roller mechanism; 251. Pressure roller; 252. Lifting drive; 2521. First connecting rod; 2522. Second connecting rod; 2523. Third connecting rod. 2524. Linkage mechanism drive; 253. Synchronous anti-vibration component; 30. Sawing system; 31. Gantry frame; 32. Servo head; 33. Saw blade; 34. Lower support mechanism; 40. Feeding system; 50. Waste discharge system; 51. First inclined plate; 52. Second inclined plate; 53. Push-out unit; 531. Transverse support; 532. Transverse push-out track; 533. Transverse push-out cylinder; 534. Push-out plate; 54. Follower roller; x: Axial; y: Transverse; z: Longitudinal. Detailed Implementation

[0028] The technical solutions in this application are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] Reference Figures 1-7 The illustrated through-type door frame saw includes a frame 10 having a certain length in the axial direction x. The frame 10 is a prior art frame structure. A feeding system 20, a sawing system 30, a unloading system 40, and a waste removal system 50 are arranged on the frame 10 according to the production sequence. The through-type door frame saw also includes electrical connections to the feeding system 20, sawing system 30, unloading system 40, and waste removal system 50 to control the operation of each system. The control system is any of the prior art, such as a PLC control cabinet.

[0030] The feeding system 20 includes a worktable 21 arranged along the axial x, a fixed support 22 located on one side of the worktable 21, a width clamping mechanism 23 located on the other side of the worktable 21, and a pushing mechanism 24.

[0031] Specifically, the worktable 21 is a single or multiple assembled flat plates screwed onto the frame 10, the surface of which forms the operating surface of the worktable 21 and is suitable for placing door frame panels. The worktable 21 has a certain length in the axial x direction.

[0032] A fixed support 22 is screwed onto the frame 10 on one side of the workbench 21. The fixed support 22 can be any structure in the prior art, such as a support plate with a certain length in the axial x direction.

[0033] On the other side of the workbench 21, opposite to the fixed support plate 22, a width clamping mechanism 23 is screwed onto the frame 10. The width clamping mechanism 23 can be any structure in the prior art, such as a combination of multiple support plates and cylinders spaced 60 degrees laterally. Preferably, rollers are installed on the support surface of the support plate to allow the door frame plate to be fed smoothly.

[0034] The pushing mechanism 24 includes a pushing unit 241 and a pushing drive unit 242 located above the worktable 21. Driven by the pushing drive unit 242, the pushing unit 241 can move back and forth along the worktable 21, that is, it can move back and forth between the starting position and the ending position of the worktable 21. Thus, the pushing mechanism 24 can push the first end face and the second end face of the door frame panel to the sawing system 30 in sequence. The unloading system 40 will then transfer the sawn door frame panel to the next process, so as to achieve the effect of parallel production with the next process, improve production efficiency, and reduce labor intensity.

[0035] Specifically, the pusher drive unit 242 is a servo-driven gear rack transmission mechanism. The rack and track of the pusher drive unit 242 are arranged along the axial x and located on one side of the worktable 21. They are screwed onto the frame 10. The sliding seat of the pusher drive unit 242 is screwed to the pusher unit 241.

[0036] The pushing unit 241 includes a connecting arm 2411 screwed onto a sliding seat and a push plate 2412 mounted via the connecting arm 2411. Preferably, the connecting arm 2411 is inverted U-shape, thus giving it a certain height. An adjusting cylinder 2413 is screwed onto the connecting arm 2411. The adjusting cylinder 2413 can be positioned along the longitudinal direction z. The push plate 2412 is screwed onto the telescopic end of the adjusting cylinder 2413, allowing the adjusting cylinder 2413 to adjust the height of the push plate 2412 to accommodate door frame panels of different thicknesses.

[0037] In addition, a limit switch 2414 is screwed onto the front end of the push plate 2412.

[0038] In addition, for the purpose of stabilizing feeding and sawing, the feeding system 20 also includes a pressure roller mechanism 25. The pressure roller mechanism 25 includes a plurality of pressure rollers 251 spaced apart along the axial x-axis and a lifting drive 252 for driving the plurality of pressure rollers 251 to lift or lower. The lifting drive 252 is a planar linkage mechanism.

[0039] In this embodiment, the lifting drive 252 includes a first link 2521 arranged along the axial direction x, a plurality of second links 2522 hinged and mounted on the frame 10, a third link 2523 arranged laterally, and a linkage mechanism drive 2524. The plurality of second links 2522 are parallel to each other and spaced laterally. The two ends of the second links 2522 are hinged to the first link 2521 and the third link 2523, respectively. The linkage mechanism drive 2524 is connected to the third link 2523 and can drive the third link 2523 to move along the axial direction x. The linkage mechanism drive 2524 is a telescopic cylinder fixedly mounted on the frame 10.

[0040] When the worktable 21 is long, the lifting drive 252 includes a combination of multiple third links 2523 and linkage mechanism drive 2524 to maintain the synchronous and stable lifting of multiple pressing rollers 251, and to provide a stable and consistent pressing force when pressing down. For example, one third link 2523 is hinged to four second links 2522 and controls six pressing rollers 251 accordingly. Two synchronous cylinders are connected to each end of the third link 2523. Both synchronous cylinders can extend and retract in the same direction laterally, and these two synchronous cylinders constitute the linkage mechanism drive 2524. Arranging two sets of combinations of one third link 2523 and two synchronous cylinders along the axial x can control the lifting of 12 pressing rollers 251 and ensure the synchronous and stable lifting action, as well as the stable and consistent pressing force.

[0041] The clamping rollers 251 are mounted on the lifting drive 252 via a synchronous anti-vibration component 253, specifically on the first connecting rod 2521. The synchronous anti-vibration component 253 is a spring-coupled double-crank connecting rod mechanism. The synchronous anti-vibration component 253 ensures synchronous clamping between the clamping rollers 251, while avoiding the impact of vibrations that may occur during the feeding process on the clamping effect.

[0042] Preferably, the pressure roller mechanism 25 is positioned between the pushing unit 241 and the pushing drive unit 242. The pushing unit 241 and the pushing drive unit 242 are connected by a connecting arm 2411, and the connecting arm 2411 has a bent structure to avoid the pressure roller mechanism 25.

[0043] The sawing system 30 is a prior art technology, including, for example, a gantry frame 31, a servo head 32, and a saw blade assembly 33. For sawing a door frame panel with a 90° vertical end face, only one set of servo head 32 and saw blade assembly 33 is needed to complete the sawing of both end faces. For sawing a door frame panel with a 45° bevel, one set of servo head 32 and saw blade assembly 33 can also be used, as the saw blade angle is changed via a cylinder during the door frame panel feeding process, specifically from a 45° bevel to a -45° bevel. However, for production efficiency, it is preferable to use a combination of two sets of servo head 32 and saw blade assembly 33. One set of saw blade assembly 33 has a 45° bevel angle, and the other has a -45° bevel angle; the two sets operate sequentially, quickly completing the bevel sawing of both end faces of the door frame panel.

[0044] Specifically, the sawing system 30 of this embodiment includes a lower support mechanism 34, which includes a support rod arranged in the transverse direction y, a support cylinder screwed onto the frame 10 and capable of driving the support rod to rise and fall. The support mechanism 34 is located between the loading system 20 and the unloading system 40, and the lower support mechanism 34 ensures the stability of the cutting action.

[0045] The feeding system 40 is of the prior art, and includes, for example, a roller conveyor.

[0046] The waste discharge system 50 includes a first inclined plate 51 arranged longitudinally at 70° and a second inclined plate 52 located below the first inclined plate 51. The first inclined plate 51 is located between the loading system 20 and the unloading system 40 and between the sawing system 30. Preferably, there are two first inclined plates 51: one first inclined plate 51 is located between the lower support mechanism 34 and the loading system 20, with the guide inclined surface facing the loading system 20; the other first inclined plate 51 is located between the lower support mechanism 34 and the unloading system 40, with the guide inclined surface facing the unloading system 40. The two first inclined plates 51 are respectively screwed onto both sides of the support rod.

[0047] The second inclined plate 52 tilts from one side of the frame 10 to the other side, and the second inclined plate 52 can catch the end waste falling from the first inclined plate 51.

[0048] The waste discharge system 50 also includes an ejection unit 53 to handle end waste that is too long to fall through the gap between the lower support mechanism 34 and the feeding system 20 or the unloading system 40. The ejection unit 53 can eject or retract in the lateral direction y.

[0049] Specifically, the ejection unit 53 includes a transverse support 531 that spans the feeding mechanism 40 along the transverse y direction, a transverse ejection track 532 screwed onto the transverse support 531, a transverse ejection cylinder 533 screwed onto the frame 10, an ejection plate 534 screwed onto the telescopic end of the transverse ejection cylinder 533, and a slider connected to the ejection plate 534 and capable of sliding along the transverse y ejection track 532.

[0050] Additionally, a follower roller 54 is provided on the ejection unit 53. The axle of the follower roller 54 is vertically oriented 80 and installed on both sides of the ejection plate 534. After the ejection unit 53 is ejected, the follower roller 54 moves in the opposite direction and rests against the side of the door frame plate, which can play a role in lateral clamping.

[0051] The working method of the through-type door frame saw in this embodiment is as follows: First, the door frame panel is placed on the workbench 21. The pushing mechanism 24 pushes the first end face of the door frame panel to the cutting position, and the sawing system 30 performs sawing. If the cut end waste is small, it falls through the gap between the first inclined plate 51 and the unloading system 40, and is guided into the waste basket by the second inclined plate 52. If the cut end waste is large, the ejection unit 53 ejects it laterally y-axis, pushing the end waste out from the side of the frame 10. The pushing mechanism 24 continues to push the door frame panel, while the follower roller 54 moves in the opposite direction to the side of the door frame panel for lateral clamping. After the second end face of the door frame panel reaches the cutting position, the sawing system 30 performs sawing. The end waste falls through the gap between the first inclined plate 51 and the loading system 20. The door frame panel then enters the next process under the conveying of the unloading system 40.

[0052] In this embodiment, the axial direction (x), the transverse direction (y), and the longitudinal direction (z) are all perpendicular to each other.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A through-type door frame saw, comprising a frame (10) having a certain length in the axial (x) direction and a control system, wherein a feeding system (20), a sawing system (30), and a unloading system (40) are sequentially arranged on the frame (10), characterized in that, The feeding system (20) includes a workbench (21) arranged in the horizontal direction, a fixed support (22) located on one side of the workbench (21), a width clamping mechanism (23) located on the other side of the workbench (21), and a pushing mechanism (24). The pushing mechanism (24) includes a pushing unit (241) located above the workbench (21) and a pushing drive unit (242). Under the drive of the pushing drive unit (242), the pushing unit (241) can move back and forth along the workbench (21).

2. The through-type door frame saw according to claim 1, characterized in that, The pusher drive unit (242) is a servo-driven gear rack transmission mechanism. The rack and track of the pusher drive unit (242) are arranged laterally and located on one side of the worktable (21). The pusher unit (241) is installed on the sliding seat of the pusher drive unit (242).

3. The through-type door frame saw according to claim 1, characterized in that, The pusher unit (241) includes a connecting arm (2411) connected to the sliding seat and a pusher plate (2412) mounted through the connecting arm (2411).

4. The through-type door frame saw according to claim 3, characterized in that, The push plate (2412) is mounted on the connecting arm (2411) by an adjusting cylinder (2413), which can extend and retract longitudinally (z) to adjust the height of the push plate (2412).

5. The through-type door frame saw according to claim 3, characterized in that, The front end of the push plate (2412) is provided with a limit switch (2414).

6. The through-type door frame saw according to claim 1, characterized in that, The feeding system (20) further includes a pressure roller mechanism (25), which includes a plurality of pressure rollers (251) spaced apart along the axial direction (x) and a lifting drive (252) that drives the plurality of pressure rollers (251) to lift or lower. The lifting drive (252) is a planar linkage mechanism.

7. The through-type door frame saw according to claim 6, characterized in that, The pressing roller (251) is mounted on the lifting drive (252) via a synchronous anti-vibration component (253), which is a spring-coupled double crank linkage mechanism.

8. The through-type door frame saw according to claim 6, characterized in that, The pressure roller mechanism (25) is located between the pushing unit (241) and the pushing drive unit (242). The pushing unit (241) and the pushing drive unit (242) are connected by a connecting arm (2411), and the connecting arm (2411) has a bent structure to avoid the pressure roller mechanism (25).

9. The through-type door frame saw according to claim 1, characterized in that, The through-type door frame saw also includes a waste discharge system (50), which includes a first inclined plate (51) arranged longitudinally and a second inclined plate (52) located below the first inclined plate (51). The first inclined plate (51) is located between the loading system (20) and the unloading system (40), and the second inclined plate (52) is inclined from one side of the frame (10) to the other side.

10. The through-type door frame saw according to claim 9, characterized in that, The waste discharge system (50) further includes an ejection unit (53), which can eject or retract in the transverse (y) direction, and is provided with a follower roller (54).

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