Tooth cutting device for core plate sawtooth splicing head

Abstract

The utility model relates to a tooth cutting device for a core plate sawtooth splicing head. The tooth cutting device effectively solves the problems that a notch of a plate sawtooth joint is poor in quality, and cutting equipment is poor in flexibility. According to the technical scheme, the cutting device comprises a cutting unit and a feeding unit, the cutting unit comprises a rack, a cutting wheel and a driving motor are installed on the rack, the driving motor drives the cutting wheel to rotate through a belt mechanism, the cutting wheel comprises a disc-shaped base body, cutting teeth are arranged on the outer wall of the base body, and the feeding unit is arranged on the base body. The shape of each cutting tooth is formed by sweeping a wedge-shaped cross section along an arc sweeping path, the sweeping direction is in the circumferential direction of the base body, and the span of the cutting teeth on the outer wall of the base body is smaller than 60 degrees; the feeding unit comprises a bearing plate, and the bearing plate can intermittently move in the axial direction of the cutting wheel; the tooth profile processing device is high in regular precision of processed tooth profiles, can process tooth sections with any length, and is more flexible and universal.

Description

Technical Field

[0001] The utility model relates to the field of gear cutting equipment, in particular to a gear cutting device for a core plate sawtooth splice. Background Art

[0002] Solid wood core board is widely used in the home improvement industry. It is made by splicing solid wood strips into the inner core, and then gluing a layer of veneer on each side. In order to increase the joint strength between the wood strips, the joints of the wood strips will be processed with interlocking serrations. The current tooth cutting equipment is generally divided into two categories, one is the pressure cutting type and the other is the wheel cutting type. The pressure cutting type, such as the invention patent with application number: CN202110762727.3, uses a serrated cutter to press and cut the board through shear force like scissors. This type of equipment requires greater pressure, and the board is easily deformed during pressure cutting, the incision quality is poor, and it is not suitable for thicker boards. The wheel cutting type is to stack multiple cutting wheels axially together to cut the board. The tooth segment processed by this type of equipment is fixed in length and has poor flexibility. Moreover, the cutting wheel needs to be fed radially when cutting so that the cutting wheel gradually cuts into the board to avoid edge collapse of the board or collapse of the cutting wheel. Summary of the invention

[0003] The utility model provides a core plate sawtooth joint cutting device, aiming to solve the problems of poor cutting quality of plate sawtooth joints and poor flexibility of cutting equipment.

[0004] The technical solution includes a cutting unit and a feeding unit. The cutting unit includes a frame on which a cutting wheel and a driving motor are mounted. The driving motor drives the cutting wheel to rotate through a belt mechanism. The cutting wheel includes a disc-shaped base body. The outer wall of the base body is provided with cutting teeth. The shape of the cutting teeth is a wedge-shaped cross-section swept along an arc-shaped sweeping path. The sweeping direction is along the circumference of the base body. The span of the cutting teeth on the outer wall of the base body is less than 60 degrees. The feeding unit includes a bearing plate, which can be intermittently moved along the axial direction of the cutting wheel.

[0005] A plurality of cutting teeth are evenly distributed on the circumference of the base body, and there is a gap between every two adjacent cutting teeth.

[0006] The height of the cutting teeth gradually increases from the head to the tail, and the cross section of the tail is a complete cutting tooth shape.

[0007] The feeding unit also includes a feeding driving member for driving the intermittent feeding of the carrier plate.

[0008] The feeding unit further comprises a guide rod located below the carrying plate, the guide rod is parallel to the axis of the cutting wheel, a guide block is fixed to the bottom of the carrying plate, and the guide block is slidably arranged on the guide rod.

[0009] The feeding unit also includes a clamping device, which includes a horizontal plate fixed on the bearing plate and higher than the bearing plate, and a vertical clamping bolt is screwed on the horizontal plate.

[0010] A first limiting plate is provided on one side of the bearing plate close to the feeding direction, and a second limiting plate perpendicular to the first limiting plate is provided on the frame.

[0011] The utility model has high precision in processing tooth profile regularity, is suitable for thicker plates, can process tooth segments of any length, is more flexible and universal, and can gradually cut into the plate with a small cutting amount without the need for radial feeding of the plate or the cutting wheel, thereby reducing cutting resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a top view of the utility model.

[0013] Figure 2 This is the right side view of the feed unit.

[0014] Figure 3 The front view of the cutting wheel.

[0015] Figure 4 A perspective view of a cutting wheel. DETAILED DESCRIPTION

[0016] In conjunction with the accompanying drawings, the utility model includes a cutting unit and a feeding unit. The cutting unit includes a frame 1, on which a cutting wheel 2 and a driving motor 3 are mounted. The driving motor 3 drives the cutting wheel 2 to rotate through a belt mechanism 4. The cutting wheel 2 includes a disc-shaped base 5, on the outer wall of the base 5, there are cutting teeth 6, the shape of the cutting teeth 6 is a wedge-shaped cross section swept along an arc-shaped sweeping path, the sweeping direction is along the circumferential direction of the base 5, the span of the cutting teeth 6 on the outer wall of the base 5 is less than 60 degrees, that is, the outer wall of the base 5 has a toothless part in the circumferential direction where the cutting teeth 6 are not distributed; the feeding unit includes a carrying plate 7, the carrying plate 7 can be intermittently moved along the axial direction of the cutting wheel 2, the plate to be processed is placed on the carrying plate 7, the processing end of the plate is close to the cutting wheel 2, when the cutting wheel 2 rotates, the cutting teeth 6 cut the end of the plate, during the period when the cutting teeth 6 are separated from the plate, the carrying plate 7 is fed, and the cutting teeth 6 cut the next tooth shape when they contact the plate again, and so on.

[0017] The cutting teeth 6 are evenly distributed on the circumference of the base 5, with a gap between every two adjacent cutting teeth 6. After each cutting tooth 6 finishes cutting, the carrier plate 7 feeds in the gap section between the two cutting teeth 6. Multiple cutting teeth 6 can improve processing efficiency.

[0018] The height of the cutting tooth 6 gradually increases from the head to the tail, and the cross-section of the tail is a complete cutting tooth 6 shape. Such a shape of the cutting tooth 6 enables the cutting tooth 6 to gradually cut into the plate with a small cutting amount, reducing the cutting resistance, avoiding the edge collapse of the plate, and extending the life of the cutting tooth 6.

[0019] The feeding unit also includes a feeding drive 8 for driving the carrier plate 7 to feed intermittently; the feeding drive 8 can be a hydraulic cylinder, a pneumatic cylinder, an electric propulsion rod, a gear rack mechanism, a ratchet structure, etc., and its feeding time interval and each feeding distance are controlled by PLC.

[0020] The feeding unit also includes a guide rod 9 located below the carrier plate 7, the guide rod 9 is parallel to the axis of the cutting wheel 2, a guide block 10 is fixed to the bottom of the carrier plate 7, the guide block 10 is slidably penetrated on the guide rod 9, and guides the feeding of the carrier plate 7.

[0021] The feeding unit also includes a clamping device, which includes a horizontal plate 11 fixed on the supporting plate 7 and higher than the supporting plate 7. A vertical clamping bolt 12 is screwed on the horizontal plate 11. After the plate to be processed is placed on the supporting plate 7, the clamping bolt 12 is screwed downward to clamp the plate to prevent the plate from shifting during cutting.

[0022] A first limit plate 13 is provided on the side of the supporting plate 7 close to the feeding direction, and one side edge of the plate to be processed is positioned against the first limit plate 13. A second limit plate 14 perpendicular to the first limit plate 13 is provided on the frame 1, and the processing end of the plate to be processed is against the second limit plate 14 to prevent the plate from hitting the base 5.

[0023] When the utility model is in use, the plate to be processed is placed on the supporting plate 7, one side of the plate is against the first limiting plate 13, the processing end of the plate is against the second limiting plate 14, and then the clamping bolt 12 is tightened downward to clamp and fix the plate, and then the driving motor 3 of the cutting wheel 2 is started, the cutting wheel 2 starts to rotate, and at the same time, the feed driving part 8 is under the control of the PLC, and intermittently feeds the supporting plate 7 at a set time interval and feed amount. Each feeding occurs in the interval period between two cutting teeth 6, that is, after the previous cutting tooth 6 completes cutting, the supporting plate 7 is fed, and before the next cutting tooth 6 contacts the plate and starts cutting, the feeding is completed, and this cycle is repeated to continuously process the tooth shape at the end of the plate.

[0024] Compared with the pressing and cutting equipment, the tooth shape processed by the utility model is regular and accurate, and is suitable for thicker plates; compared with the multi-layer wheel type tooth cutting equipment, the utility model can process tooth segments of any length within the stroke of the feed unit, which is more flexible and universal. Moreover, the special shape of the cutting teeth 6 of the utility model can gradually cut into the plate with a small cutting amount without the need for radial feeding of the plate or the cutting wheel 2, thereby reducing the cutting resistance, thereby avoiding edge collapse of the plate and extending the life of the cutting teeth 6.

Claims

1. A core plate sawtooth splice cutting device, characterized in that: The invention comprises a cutting unit and a feeding unit. The cutting unit comprises a frame (1). A cutting wheel (2) and a driving motor (3) are mounted on the frame (1). The driving motor (3) drives the cutting wheel (2) to rotate via a belt mechanism (4). The cutting wheel (2) comprises a disc-shaped base (5). The outer wall of the base (5) is provided with cutting teeth (6). The cutting teeth (6) are shaped as a wedge-shaped cross section swept along an arc-shaped sweeping path. The sweeping direction is along the circumference of the base (5). The span of the cutting teeth (6) on the outer wall of the base (5) is less than 60 degrees. The feeding unit comprises a bearing plate (7). The bearing plate (7) can be intermittently moved along the axial direction of the cutting wheel (2).

2. A core plate serrated joint cutting device according to claim 1, characterized in that: A plurality of the cutting teeth (6) are evenly distributed on the circumference of the base body (5), and there is a gap between every two adjacent cutting teeth (6).

3. A core plate serrated splice cutting device according to claim 1, characterized in that: The height of the cutting tooth (6) gradually increases from the head to the tail, and the cross-section of the tail is in the shape of a complete cutting tooth (6).

4. A core plate serrated splice cutting device according to claim 1, characterized in that: The feeding unit further comprises a feeding driving member (8) for driving the carrier plate (7) to feed intermittently.

5. The core plate serrated splice cutting device according to claim 1, characterized in that: The feed unit further comprises a guide rod (9) located below the carrier plate (7), the guide rod (9) being parallel to the axis of the cutting wheel (2), and a guide block (10) being fixed to the bottom of the carrier plate (7), the guide block (10) being slidably disposed on the guide rod (9).

6. The core plate serrated splice cutting device according to claim 1, characterized in that: The feeding unit further comprises a clamping device, which comprises a horizontal plate (11) fixed on the supporting plate (7) and higher than the supporting plate (7), and a vertical clamping bolt (12) is screwed onto the horizontal plate (11).

7. The core plate serrated splice cutting device according to claim 1, characterized in that: A first limit plate (13) is provided on one side of the carrier plate (7) close to the feeding direction, and a second limit plate (14) perpendicular to the first limit plate (13) is provided on the frame (1).

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