Tongue-and-groove cutting device for polyurethane insulation board

Abstract

The utility model provides a tongue-and-groove cutting device for a polyurethane insulation board, and belongs to the technical field of polyurethane insulation board production. Comprising cutting mechanisms arranged on the two sides of a polyurethane heat preservation plate conveying belt correspondingly, and the cutting mechanisms are used for cutting triangular rabbets in the edges of polyurethane heat preservation plates; each cutting mechanism comprises an upper cutting unit and a lower cutting unit, and each cutting unit comprises a circular cutting piece. The included angle between the central axes of the two cutting blades in each cutting mechanism ranges from 60 degrees to 120 degrees. And the cutting blades are tangent to the central surface of the polyurethane insulation board to be cut. At least two groups of cutting mechanisms are arranged on the conveying belt, the cutting mechanisms can cut triangular rabbets at the left edge and the right edge of the polyurethane insulation board, and triangular rabbet edges can be directly cut while longitudinal cutting of the polyurethane insulation board is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of polyurethane thermal insulation board production, and particularly relates to a tongue and groove cutting device for polyurethane thermal insulation boards. Background Art

[0002] Due to its very low thermal conductivity, polyurethane insulation boards are widely used in building exterior walls and other fields such as central air conditioning and cold storage rooms.

[0003] Installation of polyurethane insulation panels requires assembling multiple panels together and gluing the seams. However, current polyurethane insulation panels have straight edges, resulting in a small bonding area between panels and limited bond strength. This can lead to widening seams during outdoor use, reducing insulation performance. If tongue-and-groove design could be incorporated into the edges of polyurethane insulation panels, the bonding area between panels could be increased, thereby enhancing bond strength.

[0004] Therefore, a device capable of processing a tongue and groove at the edge of a polyurethane insulation board is needed. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a tongue and groove cutting device for a polyurethane insulation board in view of the deficiencies in the prior art.

[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0007] A tongue-and-groove cutting device for a polyurethane insulation board comprises cutting mechanisms respectively arranged on both sides of a polyurethane insulation board conveyor belt, wherein the cutting mechanisms are used to cut a triangular tongue-and-groove at the edge of the polyurethane insulation board;

[0008] Each group of the cutting mechanisms includes two groups of cutting units, upper and lower, and each group of the cutting units includes a circular cutting blade;

[0009] The included angle between the central axes of the two cutting blades in each group of the cutting mechanism is 60°-120°;

[0010] The cutting blades are all tangent to the central surface of the polyurethane insulation board to be cut.

[0011] Furthermore, the included angles between the central axes of the two cutting blades in each group of the cutting mechanisms and the horizontal plane are equal.

[0012] Furthermore, the two cutting units in each group of the cutting mechanisms are staggered front to back.

[0013] Furthermore, the cutting mechanism is also provided in the middle of the conveyor belt.

[0014] Furthermore, portal frames spanning the conveyor belt are provided on the upper and lower sides of the conveyor belt, the upper cutting unit is fixedly provided on the lower side of the upper portal frame, and the lower cutting unit is fixedly provided on the upper side of the lower portal frame.

[0015] Furthermore, each group of the cutting units also includes a motor for driving the cutting blade and a motor bracket for fixing the motor.

[0016] Furthermore, the motor bracket is fixedly connected to the portal frame.

[0017] Furthermore, limit blocks are provided on the left and right sides of the conveyor belt, and the limit blocks are used to limit the polyurethane insulation board to be cut to an accurate cutting position.

[0018] Furthermore, the connecting line between the two opposite limit blocks on the left and right sides is perpendicular to the conveyor belt; a rotatably connected limit roller is also provided between the two opposite limit blocks, and the limit roller is used to prevent the polyurethane insulation board from warping.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The utility model is provided with cutting mechanisms on the left and right sides of the conveyor belt, which can cut triangular tongue-and-groove edges on the left and right edges of the polyurethane insulation board. Therefore, the utility model can complete the tongue-and-groove processing during the production process of the polyurethane insulation board, and has high production efficiency. The cutting mechanism of the utility model can also be simultaneously provided in the middle of the conveyor belt, so that the triangular tongue-and-groove edges can be directly cut while achieving longitudinal cutting of the polyurethane insulation board.

[0021] The utility model provides a limit block on the upstream conveyor belt of the cutting mechanism. The limit block can provide a limit for both sides of the polyurethane insulation board to be cut, and can accurately fix the polyurethane insulation board in the cutting position. At the same time, a limit roller is also provided between the two opposing limit blocks. The limit roller can prevent the polyurethane insulation board from tilting, thereby improving cutting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention will be described in further detail below with reference to the accompanying drawings.

[0023] Figure 1 : A schematic structural diagram of the cutting mechanism of the utility model;

[0024] Figure 2 : One of the structural diagrams of the utility model;

[0025] Figure 3 : The second structural diagram of the utility model;

[0026] Among them: 1-cutting mechanism, 11-cutting unit, 111-cutting blade, 112-motor, 113-motor bracket, 2-conveyor belt, 21-door frame, 22-limiting block, 23-limiting roller, 3-polyurethane insulation board. DETAILED DESCRIPTION

[0027] To better understand the present invention, the following examples and accompanying drawings further illustrate the present invention. However, the present invention is not limited to the following examples. In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details.

[0028] Example 1: See Figure 1-Figure 3 This embodiment provides a tongue-and-groove cutting device for polyurethane insulation boards. The device comprises a cutting mechanism 1 disposed on both sides of a polyurethane insulation board conveyor belt 2. The conveyor belt 2 is located at the exit of a furnace in a polyurethane insulation board production line and is used to transport uncut, semi-finished polyurethane insulation boards.

[0029] like Figure 1 As shown, the cutting mechanism 1 includes two groups of upper and lower cutting units 11 , each group of cutting units 11 includes a cutting blade 111 , a motor 112 for driving the cutting blade 111 to rotate, and a motor bracket 113 for fixing the motor 112 .

[0030] Each cutting blade 111 is circular; the central axes of the two cutting blades 111 in the cutting mechanism 1 form an angle θ, with a range of 60°≤θ≤120°; the central axes of the two cutting blades 111 form equal angles with the horizontal plane; and each cutting blade 111 is tangential to the central plane of the polyurethane insulation board 3 to be cut. Furthermore, to prevent the two cutting blades 111 in the cutting mechanism 1 from contacting each other, the two groups of cutting units 11 are staggered front and back. The two cutting blades 111 in the cutting mechanism 1 create a triangular tongue-and-groove at an angle of θ on the edge of the polyurethane insulation board.

[0031] like Figure 2 、 Figure 3 As shown, portal frames 21 are provided on the upper and lower parts across both sides of the conveyor belt 2, the upper cutting unit 11 is fixed to the upper portal frame 21 through a motor bracket 113, and the lower cutting unit 11 is fixed to the lower portal frame 21 through a motor bracket 113.

[0032] When the polyurethane insulation board needs to be cut longitudinally, a cutting mechanism 1 can be set in the middle of the polyurethane insulation board conveyor belt according to the number of cuts. Figure 2 、 Figure 3A cutting mechanism 1 is provided on both sides and the middle of the conveyor belt 2, which can divide the polyurethane insulation board 3 into two parts along the longitudinal direction, and a triangular tongue and groove is cut on the left and right edges of each part.

[0033] At the same time, limit blocks 22 are also provided on the left and right sides of the conveyor belt 2. The limit blocks 22 are located upstream of the cutting mechanism 1. The line connecting the two opposing limit blocks 22 on the left and right sides is perpendicular to the conveyor belt 2. The distance between the two opposing limit blocks 22 is consistent with the width of the polyurethane insulation board 3 to be cut. Therefore, the limit blocks 22 on both sides can limit the polyurethane insulation board 3 to the precise cutting position.

[0034] Furthermore, a rotatably connected limiting roller 23 is provided between the two limiting blocks 22 on the left and right sides. The top surface of the polyurethane insulation board 3 is in contact with the limiting roller 23, so the limiting roller 23 can provide a limit for the polyurethane insulation board 3 to prevent it from warping and affecting the cutting accuracy.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A tongue and groove cutting device for polyurethane insulation board, characterized in that: It includes cutting mechanisms respectively arranged on both sides of the polyurethane insulation board conveyor belt, and the cutting mechanisms are used to cut triangular tongue and groove on the edge of the polyurethane insulation board; Each group of the cutting mechanisms includes two groups of cutting units, upper and lower, and each group of the cutting units includes a circular cutting blade; The included angle between the central axes of the two cutting blades in each group of the cutting mechanism is 60°-120°; The cutting blades are all tangent to the central surface of the polyurethane insulation board to be cut.

2. The tongue and groove cutting device for polyurethane insulation board according to claim 1, characterized in that: The included angles between the central axes of the two cutting blades in each group of the cutting mechanisms and the horizontal plane are equal.

3. The tongue and groove cutting device for polyurethane insulation board according to claim 1, characterized in that: The two cutting units in each group of the cutting mechanisms are staggered front to back.

4. The tongue and groove cutting device for polyurethane insulation board according to claim 1, characterized in that: The cutting mechanism is also provided in the middle of the conveyor belt.

5. The tongue and groove cutting device for polyurethane insulation board according to claim 1, characterized in that: The upper and lower sides of the conveyor belt are both provided with portal frames spanning the conveyor belt, the upper cutting unit is fixedly arranged on the lower side of the upper portal frame, and the lower cutting unit is fixedly arranged on the upper side of the lower portal frame.

6. The tongue and groove cutting device for polyurethane insulation board according to claim 5, characterized in that: Each group of cutting units further includes a motor for driving the cutting blades and a motor bracket for fixing the motor.

7. The tongue and groove cutting device for polyurethane insulation board according to claim 6, characterized in that: The motor bracket is fixedly connected to the portal frame.

8. The tongue and groove cutting device for polyurethane insulation board according to claim 1, characterized in that: Limit blocks are also provided on the left and right sides of the conveyor belt, and the limit blocks are used to limit the polyurethane insulation board to be cut to an accurate cutting position.

9. The tongue and groove cutting device for polyurethane insulation board according to claim 8, characterized in that: The connecting line between the two opposite limit blocks on the left and right sides is perpendicular to the conveyor belt; a rotatably connected limit roller is also provided between the two opposite limit blocks, and the limit roller is used to prevent the polyurethane insulation board from tilting.

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