Knife for cutting surface-coated PVC foam board

Abstract

The present invention discloses a tool for cutting surface plastic coated PVC foam board, comprising a fixed connecting plate, an angle adjustment plate, a pressing plate and a cutting blade, wherein the fixed connecting plate is connected to a stroke slider on a cutting machine through a connecting waist hole, the angle adjustment plate is movably connected to the fixed connecting plate through a hinge, the pressing plate is fixed to the outside of the angle adjustment plate, and a group of cutting blades are fixedly arranged between the angle adjustment plate and the pressing plate. As the cutting stroke proceeds, the angle of the cutting blade can be adaptively adjusted, and compared with a tool with a fixed blade angle, the problem of excessive shear resistance caused by continuous vertical angle cutting can be avoided, effectively ensuring cutting efficiency, and preventing the occurrence of edge bursting, thereby ensuring cutting quality; the tool has a simple structure, and can be mainly used for the explosion-proof edge cutting of foam materials with surface coatings, and the overall debugging process is convenient and has strong practicality.

Description

Technical Field

[0001] The invention belongs to the technical field of cutting tools, and in particular relates to a cutting tool for cutting a surface-plasticized PVC foam board. Background Art

[0002] Surface-coated PVC foam boards are used for thermal insulation. In order to facilitate transportation and use, surface-coated PVC foam boards of a certain thickness and width need to be cut to a fixed length during the production process, and then grooves are cut on both sides at equal distances, folded, and packaged.

[0003] At present, when the tool used for cutting the surface-coated PVC foam board is working, the cutting blade on it can only cut at a fixed angle. As the cutting stroke proceeds, the shear resistance at the cutting end of the blade is relatively large, and when acting on the foam material with a surface coating that is easy to deform, unfavorable conditions such as edge bursting often occur, which seriously affects the cutting effect, and the blade is also easy to wear. If the above problems are avoided by manually adjusting the cutting knife angle during the cutting process, it will seriously affect the production efficiency. Summary of the invention

[0004] In view of the above-mentioned problems, the present invention aims to provide a tool for cutting surface plastic-coated PVC foam boards, which has a simple structure and is easy to adjust. The cutting angle can be continuously and automatically adjusted during the cutting process to avoid situations such as edge bursting caused by excessive cutting resistance that affects the cutting quality.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] A tool for cutting surface plastic coated PVC foam board comprises a fixed connecting plate, an angle adjustment plate, a pressing plate and a cutting blade. The fixed connecting plate is connected to a travel slider on a cutting machine through a connecting waist hole, the angle adjustment plate is movably connected to the fixed connecting plate through a hinge, the pressing plate is fixed on the outside of the angle adjustment plate, and a group of cutting blades are fixedly arranged between the angle adjustment plate and the pressing plate.

[0007] Furthermore, two blade grooves adapted to the shape of the cutting blade are arranged in parallel on the angle adjustment plate, the cutting blade is placed in the blade grooves, and the depth of the blade grooves is less than the thickness of the cutting blade.

[0008] Furthermore, the pressing plate is fixed to the outer side of the angle adjustment plate by fastening bolts.

[0009] Furthermore, two limiting piles protruding from the front side of the fixed connecting plate are symmetrically arranged on the vertical plate of the fixed connecting plate and below the angle adjustment plate.

[0010] Furthermore, two movable grooves are symmetrically provided on the vertical plate of the fixed connecting plate and below the angle adjustment plate. Each limit pile is connected to the movable groove on the corresponding side. The diameter of the limit pile is larger than the width of the movable groove. A threaded column matching the diameter of the movable groove is integrally connected to the inner side of the limit pile. The limit pile is locked in place by a nut on the threaded column.

[0011] The beneficial effects of the present invention are:

[0012] 1. The present invention discloses a cutting tool for cutting a surface-plasticized PVC foam board, which can adaptively adjust the angle of the cutting blade as the cutting stroke proceeds. Compared with a cutting tool with a fixed blade angle, it can avoid the problem of excessive shear resistance caused by continuous vertical angle cutting, ensure the smooth cutting operation, prevent the occurrence of edge bursting, and ensure the cutting quality;

[0013] 2. The tool has a simple structure and can be mainly used for cutting the explosion-proof edges of foam materials with surface coatings. The overall debugging process is convenient and practical.

[0014] 3. The limit pile is adjustably connected in the movable groove, so that the deflection angle range of the angle adjustment plate can be adaptively adjusted according to actual conditions, and the practicality of the tool is further enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the front view of a cutting tool for cutting a surface-plasticized PVC foam board;

[0016] Figure 2 It is a schematic diagram of the front view of a cutter for cutting a surface-plasticized PVC foam board after removing a pressing plate;

[0017] Figure 3 A schematic diagram of the front view of the fixed connection plate and the angle adjustment plate in the connected state;

[0018] Figure 4 It is a schematic diagram of the front view of the fixed connecting plate;

[0019] Figure 5 A rear view schematic diagram of a fixed connecting plate;

[0020] Figure 6 It is a structural schematic diagram of a fixed connecting plate.

[0021] Among them, 1-fixed connecting plate, 2-angle adjustment plate, 3-pressing plate, 4-cutting blade, 5-connecting waist hole, 6-hinge, 7-blade slot, 8-fastening bolt, 9-limiting pile, 10-movable slot, 11-threaded column, 12-nut. DETAILED DESCRIPTION

[0022] In order to enable ordinary technicians in this field to better understand the technical solution of the present invention, the following Figure 1-6 The technical solution of the present invention is further described.

[0023] It should be noted that the embodiments provided in the present invention are only for effectively illustrating the technical features of the present invention, and the positioning words such as the left side, right side, upper end, and lower end are only for better describing the embodiments of the present invention and cannot be regarded as limiting the technical solution of the present invention.

[0024] When cutting foam materials with surface coating, in order to be able to change the cutting angle of the blade in real time as the cutting stroke proceeds, reduce the resistance of the shearing process, avoid the occurrence of adverse situations such as edge bursting, ensure the cutting quality while not affecting the cutting efficiency and even improve the work efficiency to a certain extent, the present embodiment discloses a tool for cutting surface plastic-coated PVC foam board, including a fixed connecting plate 1, an angle adjustment plate 2, a clamping plate 3 and a cutting blade 4. The fixed connecting plate 1 is connected to the stroke slider on the cutting machine through a connecting waist hole 5, driving the entire tool to perform a cycle of reciprocating cutting on the surface coating material. The angle adjustment plate 2 is movably connected to the fixed connecting plate 1 through a hinge 6. The clamping plate 3 is fixed to the outside of the angle adjustment plate 2. A group of cutting blades 4 are fixedly provided between the angle adjustment plate 2 and the clamping plate 3.

[0025] In order to improve the setting stability of the cutting blade 4 and avoid relative movement between the cutting blade 4 and the angle adjustment plate 2 during the cutting process, which affects the cutting accuracy and efficiency, two blade grooves 7 that are adapted to the shape of the cutting blade 4 are provided in parallel on the angle adjustment plate 2. The depth of the blade groove 7 is less than the thickness of the cutting blade 4. The clamping plate 3 can clamp the cutting blade 4 when it is fixed to the outside of the angle adjustment plate 2 by the fastening bolts 8 to prevent the cutting blade 4 from slipping out of the blade groove 6.

[0026] Two limit piles 9 protruding from the front side of the fixed connecting plate 1 are symmetrically arranged on the vertical plate of the fixed connecting plate 1 and below the angle adjustment plate 2. When the tool is connected to the stroke slider of the cutting machine for cutting, it initially cuts in at a large angle, i.e., 90° vertically. At this time, the shear resistance is the largest. As the unidirectional stroke proceeds, the angle of the cutting blade 4 will be continuously adjusted and changed with the resistance, and will tend to gradually decrease. During the deflection of the blade, the angle of the angle adjustment plate 2 will naturally be driven to change relative to the fixed connecting plate 1. However, the angle adjustment plate 2 cannot rotate indefinitely, because excessive rotation will cause the cutting blade 4 to separate from the surface of the material and result in no cutting. After the limit piles 9 are set, the angle adjustment plate 2 will rotate a certain angle relative to the fixed connecting plate 1, and its lower end will be restricted by the limit piles 9 on the corresponding side, thereby ensuring that the unidirectional cutting work can be carried out smoothly and uninterruptedly. When the tool returns in the reverse direction along with the travel slider, the tool deflects in the opposite direction to complete the secondary low shear force cutting work. The cutting of coated materials can be efficiently completed through a reciprocating process. The blade angle is continuously adjusted with the shear force to avoid edge bursting, ensure the cutting effect, and improve the yield of finished products.

[0027] In order to be able to adaptively adjust the limiting angle of the limiting pile 9 to further improve the practicality of the tool, two movable grooves 10 are symmetrically provided on the vertical plate of the fixed connecting plate 1 and below the angle adjustment plate 2, each limiting pile 9 is connected to the movable groove 10 on the corresponding side, the length of the limiting pile 9 is larger than the width of the movable groove 10, and a threaded column 11 adapted to the caliber of the movable groove 10 is fixedly connected to the inner side of the limiting pile 9, and the limiting pile 9 is locked and positioned by a nut 12 on the threaded column 11. When the limiting pile 9 is located at the lower end of the movable groove 10, the maximum deflection angle range of the angle adjustment plate 2 relative to the vertical direction is [-x°, +x°]. When adjustment is required, the nut can be loosened to move the two limiting piles 9 to the same height position and then locked with the nut. At this time, the deflection angle range of the angle adjustment plate 2 relative to the vertical direction changes accordingly and becomes [-m°, +m°].

[0028] The above shows and describes the basic principles, main features and advantages of the present invention. However, the above is only a specific embodiment of the present invention, and the technical features of the present invention are not limited thereto. Any other implementation methods derived by any technician in the field without departing from the technical solution of the present invention should be included in the patent scope of the present invention.

Claims

1. A tool for cutting surface-coated PVC foam board, characterized in that: The invention comprises a fixed connection plate (1), an angle adjustment plate (2), a pressing plate (3) and a cutting blade (4); the fixed connection plate (1) is connected to a travel slider on a cutting machine via a connecting waist hole (5); the angle adjustment plate (2) is movably connected to the fixed connection plate (1) via a hinge (6); the pressing plate (3) is fixed to the outside of the angle adjustment plate (2); and a group of cutting blades (4) are fixedly provided between the angle adjustment plate (2) and the pressing plate (3); Two limit stakes (9) protruding from the front side of the fixed connecting plate (1) are symmetrically provided on the vertical plate of the fixed connecting plate (1) and below the angle adjustment plate (2); Two movable grooves (10) are symmetrically provided on the vertical plate of the fixed connection plate (1) and below the angle adjustment plate (2); each limiting pile (9) is connected to the movable groove (10) on the corresponding side; the diameter of the limiting pile (9) is larger than the width of the movable groove (10); a threaded column (11) adapted to the diameter of the movable groove (10) is integrally connected to the inner side of the limiting pile (9); the limiting pile (9) is locked and positioned by a nut (12) on the threaded column (11); Two blade grooves (7) adapted to the shape of the cutting blade (4) are arranged in parallel on the angle adjustment plate (2); the cutting blade (4) is placed in the blade grooves; the depth of the blade grooves (7) is less than the thickness of the cutting blade (4).

2. The cutter for cutting surface-plasticized PVC foam board according to claim 1, characterized in that: The clamping plate (3) is fixed to the outer side of the angle adjustment plate (2) by means of fastening bolts (8).

Images