A device for pre-grooving core material of vacuum insulation board

Abstract

The technical problem to be solved by the present invention is to provide a device for pre-grooving the core material of a vacuum insulation panel, which can make grooves in advance on the internal core material, solve the current situation that the barrier film is damaged by stretching, and improve the service life of the special-shaped vacuum insulation panel. The device includes an endless conveyor belt, a support platform, a bracket, a driving roller, and a guide roller. A grooving device is arranged on the support platform. When the device is in use, the distance between the multiple cutting components is first adjusted according to actual needs to determine the distance between the multiple grooves, and then the spacing between the first circular cutter and the second circular cutter is adjusted by the limit device to determine the groove width of each groove, and then the height of the grooving device is adjusted by the first height adjustable device to determine the groove depth of each groove, and then the power is turned on, and the driving device is started to perform the grooving operation. The operation is simple and suitable for promotion in the field of core material grooving of vacuum insulation panels.

Description

Technical Field

[0001] The invention relates to the field of core material grooving of vacuum insulation panels, and in particular to a device for pre-grooving core materials of vacuum insulation panels. Background Art

[0002] With the development of vacuum insulation panels (VIP), more and more special-shaped vacuum insulation panels are being used. The so-called special-shaped vacuum insulation panel is a hollow insulation panel with grooves on the surface. The function of the grooves is to make room for copper pipes or other components. To make such vacuum insulation panels, the method currently adopted in the industry is to use a groove pressing mold to press out grooves with depth, width and spacing that meet customer requirements on the finished hollow insulation panel. After the vacuum insulation panel is evacuated, the barrier film and the internal core material are tightly pressed together by atmospheric pressure, and the grooves are pressed out, which is equivalent to flattening the core material of this part and stretching the barrier film to form the grooves. The stretching of the local barrier film destroys its structure and even causes the barrier layer to break, greatly reducing the barrier performance of the barrier film, thereby greatly reducing the service life of the vacuum insulation panel. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a device for pre-grooving the core material of a vacuum insulation panel, which can groove the internal core material in advance, solve the current situation that the barrier film is damaged by stretching, and increase the service life of the special-shaped vacuum insulation panel.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a device for pre-grooving the core material of a vacuum insulation board comprises an endless conveyor belt, a support platform, a bracket, a driving roller, and a guide roller. The driving roller and the guide roller are fixed to the two ends of the support platform through a bracket. The endless conveyor belt passes around the driving roller, the guide roller, and the driving roller in sequence. The support platform is fixed on the bracket. The support platform is located between the upper endless conveyor belt and the lower endless conveyor belt. The upper surface of the support platform is in sliding contact with the lower surface of the upper endless conveyor belt. The width of the support platform is large. The width of the endless conveyor belt is determined by the support platform, and a slotting device is arranged on the support platform, and the slotting device includes an inverted U-shaped bracket, a first movable plate, and a second movable plate. The inverted U-shaped bracket includes a first cross bar, a first vertical bar, and a second vertical bar. The two ends of the first cross bar are respectively fixedly connected to the upper end of the first vertical bar and the upper end of the second vertical bar. The endless conveyor belt is located between the first vertical bar and the second vertical bar. The first movable plate is fixed to the lower end of the first vertical bar and the two are perpendicular to each other. The second movable plate is fixed to the lower end of the second vertical bar and the two are perpendicular to each other. The first movable plate and the second movable plate are connected by a first The height-adjustable device is fixed on the supporting platform, the first movable plate and the second movable plate are respectively located on both sides of the endless conveyor belt, a rotating shaft is arranged between the first vertical rod and the second vertical rod, a driving device is arranged on the outer side of the first vertical rod, the driving device is connected to an external power supply, the driving device is fixed on the first movable plate through a fixing device, one end of the rotating shaft passes through the first vertical rod and is fixedly connected to the output shaft of the driving device, the other end of the rotating shaft is fixed to the second vertical rod through a bearing, the rotating shaft is connected to the first vertical rod through a bearing, and a plurality of cutting components are arranged on the rotating shaft, Each cutting assembly includes a first circular cutter and a second circular cutter, the spacing between the first circular cutter and the second circular cutter is greater than zero, the radii of the first circular cutter and the second circular cutter are equal, the surface centers of the first circular cutter and the second circular cutter are both provided with through holes, the diameter of the through holes matches the diameter of the rotating shaft, the first circular cutter and the second circular cutter are respectively sleeved on the rotating shaft, the first circular cutter and the second circular cutter are respectively fixed on the rotating shaft by limiting devices, and there is a gap between the first circular cutter and the second circular cutter and the upper endless conveyor belt.

[0005] Furthermore, a pressure strip is arranged between the first circular cutter and the second circular cutter, the length of the pressure strip is greater than three times the diameter of the first circular cutter, the length direction of the pressure strip is the same as the length direction of the endless conveyor belt, the width of the pressure strip is smaller than the distance between the first circular cutter and the second circular cutter, a connecting rod is fixedly arranged on the upper surface of the pressure strip, the lower end of the connecting rod is fixed on the upper surface of the pressure strip and the two are perpendicular to each other, the upper end of the connecting rod is fixed to the first cross bar through a horizontally adjustable device, and the distance between the connecting rod and the first circular cutter or the second circular cutter is greater than zero.

[0006] Furthermore, the horizontally adjustable device includes a rectangular sleeve arranged on the first cross bar, the rectangular sleeve matches the first cross bar, the rectangular sleeve is sleeved on the first cross bar, the rectangular sleeve slides freely along the length direction of the first cross bar, the upper side wall surface of the rectangular sleeve is provided with a first threaded through hole running through from top to bottom, a first tightening screw is provided in the first threaded through hole, the first tightening screw matches the first threaded through hole, the lower end of the first tightening screw extends into the first threaded through hole, the upper end of the first tightening screw is provided with a first knob for rotating the first tightening screw, a fixing rod is provided on the rear side wall surface of the rectangular sleeve, one end of the fixing rod is fixed to the rear side wall surface of the rectangular sleeve, and the other end of the fixing rod is fixedly connected to the upper end of the connecting rod through a second height adjustable device.

[0007] Furthermore, the second height-adjustable device includes a circular ring, the inner diameter of which matches the diameter of the connecting rod, the circular ring is sleeved on the connecting rod, and the connecting rod can slide up and down along the inner wall of the circular ring, the rear end of the fixing rod is fixed on the outer wall of the circular ring, and a second threaded through hole is provided on the side wall surface of the circular ring, the second threaded through hole and the fixing rod are located on both sides of the central axis of the circular ring, a second tightening screw is provided in the second threaded through hole, the second tightening screw matches the second threaded through hole, one end of the second tightening screw extends into the second threaded through hole, and the other end of the second tightening screw is provided with a second knob for rotating the second tightening screw.

[0008] Furthermore, a core material limiting baffle is arranged above the endless conveyor belt, and the core material limiting baffle is located on one side of the endless conveyor belt, and there is a gap between the lower end surface of the core material limiting baffle and the upper surface of the upper endless conveyor belt, and the front end of the core material limiting baffle extends to the front end of the endless conveyor belt, and the rear end of the core material limiting baffle extends to the rear end of the pressure strip, and the core material limiting baffle is fixed to the support platform by a plurality of L-shaped fixing frames, each L-shaped fixing frame includes a first fixed cross bar and a first fixed vertical bar, one end of the first fixed cross bar is fixed to the upper end of the first fixed vertical bar and the two are perpendicular to each other, the other end of the first fixed cross bar is fixed to the outer surface of the core material limiting baffle, and the lower end of the first fixed vertical bar is fixed to the upper surface of the support platform, and there is a gap between the first fixed vertical bar and the endless conveyor belt.

[0009] Furthermore, the first height-adjustable device includes a first screw rod, a second screw rod, a first sprocket, a second sprocket, and an endless chain. A third threaded through hole is provided on the surface of the first movable plate. The spacing between the third threaded through hole and the first vertical rod is greater than zero. The third threaded through hole matches the first screw rod. The lower end of the first screw rod passes through the third threaded through hole and is fixed to the supporting platform by a bearing. The upper end of the first screw rod extends above the first cross bar. The first sprocket is sleeved on the first screw rod. The first sprocket is located above the first cross bar. A third knob for rotating the first screw rod is provided at the upper end, a fourth threaded through hole is provided on the surface of the second movable plate, the spacing between the fourth threaded through hole and the second vertical rod is greater than zero, the fourth threaded through hole matches the second screw rod, the lower end of the second screw rod passes through the fourth threaded through hole and is fixed to the supporting platform by a bearing, the second screw rod and the first screw rod are both located on the same side of the first cross bar, the second sprocket is sleeved on the second screw rod, the height of the second sprocket is equal to the height of the first sprocket, and the headless chain passes around the first sprocket, the second sprocket and the first sprocket in turn.

[0010] Furthermore, the driving device is a driving motor.

[0011] Furthermore, the fixing device includes a support plate arranged outside the first movable plate, one end of the support plate is fixed to the first movable plate, the upper surface of the support plate and the upper surface of the first movable plate are located in the same plane, and the drive motor is fixed to the upper surface of the support plate.

[0012] Furthermore, the limiting device includes an external thread arranged on the side wall of the rotating shaft, a first clamping nut is arranged on the right side of the first circular cutter or the second circular cutter, and the internal thread of the first clamping nut matches the external thread, and a second clamping nut is arranged on the left side of the first circular cutter or the second circular cutter, and the internal thread of the second clamping nut matches the external thread.

[0013] Furthermore, the multiple L-shaped fixing frames are evenly distributed on the outer surface of the core material limiting baffle.

[0014] The beneficial effect of the present invention is that when the device for pre-grooving the core material of the vacuum insulation panel is used, the distance between the multiple cutting components is first adjusted according to actual needs to determine the distance between the multiple grooves, and then the spacing between the first circular cutter and the second circular cutter is adjusted by the limiting device to determine the groove width of each groove, and then the height of the groove device is adjusted by the first height adjustable device to determine the groove depth of each groove. Further, the groove device includes an inverted U-shaped bracket, a first movable plate, and a second movable plate. The inverted U-shaped bracket includes a first cross bar, a first vertical bar, and a second vertical bar. The two ends of the first cross bar are respectively fixedly connected to the upper ends of the first vertical bar and the second vertical bar. The endless conveyor belt is located between the first vertical bar and the second vertical bar. The first movable plate is fixed to the lower end of the first vertical bar and the two are perpendicular to each other. The second movable plate is fixed to the lower end of the second vertical bar and the two are perpendicular to each other. The first movable plate and the second movable plate are fixed to the supporting platform by the first height adjustable device. The first movable plate and the second movable plate are respectively positioned at The cam is an axially coupled machine which is configured to engage the first and second guide wheels, and the cam is configured to engage the second guide wheel, the cam being an axially coupled machine having a first end and a second end. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0016] Figure 1 It is a structural schematic diagram of a device for pre-grooving a core material of a vacuum insulation panel according to the present invention;

[0017] Figure 2 yes Figure 1 A partial enlarged view of middle A;

[0018] Figure 3 yes Figure 1 A partial enlarged view of B in the middle;

[0019] Explanation of marks in the figure: endless conveyor belt 1, supporting platform 2, bracket 3, driving roller 4, guide roller 5, first movable plate 6, second movable plate 7, inverted U-shaped bracket 8, first cross bar 801, first vertical bar 801, second vertical bar 803, rotating shaft 9, first circular cutter 10, second circular cutter 11, pressure strip 12, connecting rod 13, rectangular sleeve 14, fixing rod 15, first tightening screw 16, first knob 17, circular collar 18, second tightening screw 19, second knob 20, core material limiting baffle 21, L-shaped fixing frame 22, first fixed cross bar 2201, first fixed vertical bar 2202, first screw rod 23, second screw rod 24, first sprocket 25, second chain 26, endless chain 27, third knob 28, driving device 29, support plate 30, first clamping nut 31. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] like Figure 1 , 2As shown in , 3, a device for pre-grooving the core material of a vacuum insulation board comprises an endless conveyor belt 1, a support platform 2, a bracket 3, a driving roller 4, and a guide roller 5. The driving roller 4 and the guide roller 5 are fixed to the two ends of the support platform 2 through brackets. The endless conveyor belt 1 passes around the driving roller 4, the guide roller 5, and the driving roller 4 in sequence. The support platform 2 is fixed on the bracket 3. The support platform 2 is located between the upper endless conveyor belt 1 and the lower endless conveyor belt 1. The upper surface of the support platform 2 is in sliding contact with the lower surface of the upper endless conveyor belt 1. The width of the support platform 2 is greater than the width of the endless conveyor belt 1. The support platform 2 is provided with a groove. The grooving device comprises an inverted U-shaped bracket 83, a first movable plate 6, and a second movable plate 7. The inverted U-shaped bracket 83 comprises a first cross bar 801, a first vertical bar 802, and a second vertical bar 803. The two ends of the first cross bar 801 are respectively fixedly connected to the upper end of the first vertical bar 802 and the upper end of the second vertical bar 803. The endless conveyor belt 1 is located between the first vertical bar 802 and the second vertical bar 803. The first movable plate 6 is fixed to the lower end of the first vertical bar 802 and the two are perpendicular to each other. The second movable plate 7 is fixed to the lower end of the second vertical bar 803 and the two are perpendicular to each other. The first movable plate 6 and the second movable plate 7 are fixed to the lower end of the second vertical bar 803 through a first height adjustable device. On the supporting platform 2, the first movable plate 6 and the second movable plate 7 are respectively located on both sides of the endless conveyor belt 1, a rotating shaft 9 is arranged between the first vertical rod 802 and the second vertical rod 803, a driving device 29 is arranged on the outer side of the first vertical rod 802, the driving device 29 is connected to an external power supply, the driving device 29 is fixed to the first movable plate 6 by a fixing device, one end of the rotating shaft 9 passes through the first vertical rod 802 and is fixedly connected to the output shaft of the driving device 29, the other end of the rotating shaft 9 is fixed to the second vertical rod 803 by a bearing, the rotating shaft 9 is connected to the first vertical rod 802 by a bearing, a plurality of cutting components are arranged on the rotating shaft 9, each cutting component The cutting assembly includes a first circular cutter 10 and a second circular cutter 11, the spacing between the first circular cutter 10 and the second circular cutter 11 is greater than zero, the radii of the first circular cutter 10 and the second circular cutter 11 are equal, and the surface centers of the first circular cutter 10 and the second circular cutter 11 are both provided with through holes, the diameter of the through holes matches the diameter of the rotating shaft 9, the first circular cutter 10 and the second circular cutter 11 are respectively sleeved on the rotating shaft 9, the first circular cutter 10 and the second circular cutter 11 are respectively fixed on the rotating shaft 9 by limiting devices, and there is a gap between the first circular cutter 10 and the second circular cutter 11 and the upper endless conveyor belt 1.When the device for pre-grooving the core material of the vacuum insulation panel is used, the distance between the multiple cutting components is first adjusted according to actual needs to determine the distance between the multiple grooves, and then the spacing between the first circular cutter 10 and the second circular cutter 11 is adjusted by the limit device to determine the groove width of each groove, and then the height of the groove device is adjusted by the first height adjustable device to determine the groove depth of each groove. Furthermore, the groove device includes an inverted U-shaped bracket 8, a first movable plate 6, and a second movable plate 7. The inverted U-shaped bracket 8 includes a first cross bar 801, a first vertical bar 802, and a second vertical bar 803. The first movable plate 6 and the second movable plate 7 are fixed to the support platform 2 through a first height-adjustable device. ... A rotating shaft 9 is arranged between the first vertical rod 802 and the second vertical rod 803, a driving device 29 is arranged on the outer side of the first vertical rod 802, the driving device 29 is connected to an external power supply, the driving device 29 is fixed to the first movable plate 6 by a fixing device, one end of the rotating shaft 9 passes through the first vertical rod 802 and is fixedly connected to the output shaft of the driving device 29, the other end of the rotating shaft 9 is fixed to the second vertical rod 803 by a bearing, the rotating shaft 9 is connected to the first vertical rod 802 by a bearing, a plurality of cutting components are arranged on the rotating shaft 9, each cutting component includes a first circular cutter 1 0 and a second circular cutter 11, the spacing between the first circular cutter 10 and the second circular cutter 11 is greater than zero, the radii of the first circular cutter 10 and the second circular cutter 11 are equal, the surface centers of the first circular cutter 10 and the second circular cutter 11 are provided with through holes, the diameter of the through holes matches the diameter of the rotating shaft 9, the first circular cutter 10 and the second circular cutter 11 are respectively sleeved on the rotating shaft 9, and the depth of the first circular cutter 10 and the second circular cutter 11 cutting the core material can be adjusted by adjusting the height of the first movable plate 6 and the second movable plate 7 through the first height adjustable device.

[0022] In the above embodiment, in order to prevent the core material cut off during the grooving process from being wound around the first circular cutter 10 or the second circular cutter 11 or the rotating shaft 9, a pressure strip 12 is arranged between the first circular cutter 10 and the second circular cutter 11, and the length of the pressure strip 12 is greater than three times the diameter of the first circular cutter 10, and the length direction of the pressure strip 12 is the same as the length direction of the endless conveyor belt 1, and the width of the pressure strip 12 is less than the distance between the first circular cutter 10 and the second circular cutter 11, and a connecting rod 13 is fixedly arranged on the upper surface of the pressure strip 12, and the lower end of the connecting rod 13 is fixed on the upper surface of the pressure strip 12 and the two are perpendicular to each other, and the upper end of the connecting rod 13 is fixed on the first cross bar 801 through a horizontally adjustable device, and the distance between the connecting rod 13 and the first circular cutter 10 or the second circular cutter 11 is greater than zero. In this way, the core material cut off during the slotting process can be pressed down by the pressure strip 12, thereby preventing the core material cut off during the slotting process from being wound around the first circular cutter 10 or the second circular cutter 11 or the rotating shaft 9.

[0023] In addition, according to actual needs, when the spacing between multiple grooves is different, it is necessary to adjust the spacing between multiple cutting components, and the pressure strip 12 needs to be adjusted accordingly. For this purpose, a horizontally adjustable device is provided, and the horizontally adjustable device includes a rectangular sleeve 14 provided on the first cross bar 801, and the rectangular sleeve 14 matches the first cross bar 801. The rectangular sleeve 14 is sleeved on the first cross bar 801, and the rectangular sleeve 14 slides freely along the length direction of the first cross bar 801. The upper side wall surface of the rectangular sleeve 14 is provided with a first thread running through the upper and lower parts. Through hole, a first tightening screw 16 is arranged in the first threaded through hole, the first tightening screw 16 matches the first threaded through hole, the lower end of the first tightening screw 16 extends into the first threaded through hole, the upper end of the first tightening screw 16 is provided with a first knob 17 for rotating the first tightening screw 16, and a fixing rod 15 is arranged on the rear side wall surface of the rectangular sleeve 14, one end of the fixing rod 15 is fixed on the rear side wall surface of the rectangular sleeve 14, and the other end of the fixing rod 15 is fixedly connected to the upper end of the connecting rod 13 through a second height adjustable device.

[0024] Furthermore, in order to meet the requirements of vacuum insulation panels of different thicknesses, a second height adjustable device is provided, which includes a circular collar 18, the inner diameter of which matches the diameter of the connecting rod 13, the circular collar 18 is sleeved on the connecting rod 13, the connecting rod 13 can slide up and down along the inner side wall of the circular collar 18, the rear end of the fixing rod 15 is fixed on the outer side wall of the circular collar 18, the side wall surface of the circular collar 18 is provided with a second threaded through hole, the second threaded through hole and the fixing rod 15 are located on both sides of the central axis of the circular collar 18, a second jacking screw 19 is provided in the second threaded through hole, the second jacking screw 19 matches the second threaded through hole, one end of the second jacking screw 19 extends into the second threaded through hole, and the other end of the second jacking screw 19 is provided with a second knob 20 for rotating the second jacking screw 19. The height of the connecting rod 13 can be adjusted by loosening the second jacking screw 19, thereby adjusting the height of the pressure strip 12.

[0025] In order to ensure the regularity of the core material grooving, a core material limiting baffle 21 is arranged above the endless conveyor belt 1. The core material limiting baffle 21 is located on one side of the endless conveyor belt 1. There is a gap between the lower end surface of the core material limiting baffle 21 and the upper surface of the upper layer of the endless conveyor belt 1. The front end of the core material limiting baffle 21 extends to the front end of the endless conveyor belt 1, and the rear end of the core material limiting baffle 21 extends to the rear end of the pressure strip 12. The core material limiting baffle 21 is fixed on the support through a plurality of L-shaped fixing frames 22. On the supporting platform 2, each L-shaped fixing frame 22 includes a first fixing cross bar 2201 and a first fixing vertical bar 2202, one end of the first fixing cross bar 2201 is fixed to the upper end of the first fixing vertical bar 2202 and the two are perpendicular to each other, the other end of the first fixing cross bar 2201 is fixed to the outer surface of the core material limiting baffle 21, the lower end of the first fixing vertical bar 2202 is fixed to the upper surface of the supporting platform 2, and there is a gap between the first fixing vertical bar 2202 and the endless conveyor belt 1. The core material limiting baffle 21 can ensure the position of the core material.

[0026] According to actual needs, the first height adjustable device is preferably the following device, which includes a first screw rod 23, a second screw rod 24, a first sprocket 25, a second sprocket 26, and an endless chain 27. A third threaded through hole is provided on the surface of the first movable plate 6. The spacing between the third threaded through hole and the first vertical rod 802 is greater than zero. The third threaded through hole matches the first screw rod 23. The lower end of the first screw rod 23 passes through the third threaded through hole and is fixed to the support platform 2 by a bearing. The upper end of the first screw rod 23 extends to the top of the first cross bar 801. The first sprocket 25 is sleeved on the first screw rod 23. The first sprocket 25 is located above the first cross bar 801. The upper end of the first screw rod 23 is provided with a third knob 28 for rotating the first screw rod 23, and the surface of the second movable plate 7 is provided with a fourth threaded through hole, and the spacing between the fourth threaded through hole and the second vertical rod 803 is greater than zero, and the fourth threaded through hole matches the second screw rod 24, and the lower end of the second screw rod 24 passes through the fourth threaded through hole and is fixed on the supporting platform 2 by a bearing, and the second screw rod 24 and the first screw rod 23 are both located on the same side of the first cross bar 801, and the second sprocket 26 is sleeved on the second screw rod 24, and the height of the second sprocket 26 is equal to the height of the first sprocket 25, and the headless chain 27 passes around the first sprocket 25, the second sprocket 26, and the first sprocket 25 in turn.

[0027] The driving device 29 is a prior art, and preferably, the driving device 29 is a driving motor.

[0028] From the perspective of economy and practicality, the fixing device is preferably the following device, which includes a support plate 30 arranged on the outside of the first movable plate 6, one end of the support plate 30 is fixed on the first movable plate 6, the upper surface of the support plate 30 and the upper surface of the first movable plate 6 are located in the same plane, and the drive motor is fixed on the upper surface of the support plate 30.

[0029] From the perspective of simplicity and practicality, the limiting device is the following device, which includes an external thread set on the side wall of the rotating shaft 9, a first clamping nut 31 is set on the right side of the first circular cutter 10 or the second circular cutter 11, and the internal thread of the first clamping nut 31 matches the external thread, and a second clamping nut is set on the left side of the first circular cutter 10 or the second circular cutter 11, and the internal thread of the second clamping nut matches the external thread. The first circular cutter 10 or the second circular cutter 11 can be fixed on the rotating shaft 9 by the first clamping nut 31 and the second clamping nut.

[0030] From the perspective of uniform force, the multiple L-shaped fixing frames 22 are evenly distributed on the outer surface of the core material limiting baffle 21 .

Claims

1. A device for pre-grooving a core material of a vacuum insulation panel, characterized in that: The invention comprises an endless conveyor belt (1), a support platform (2), a bracket (3), a driving roller (4), and a guide roller (5); the driving roller (4) and the guide roller (5) are fixed to the two ends of the support platform (2) by brackets; the endless conveyor belt (1) passes around the driving roller (4), the guide roller (5), and the driving roller (4) in sequence; the support platform (2) is fixed on the bracket (3); the support platform (2) is located between the upper layer of the endless conveyor belt (1) and the lower layer of the endless conveyor belt (1); the upper surface of the support platform (2) is in sliding contact with the lower surface of the upper layer of the endless conveyor belt (1); the width of the support platform (2) is greater than the width of the endless conveyor belt (1); and a slotting device is provided on the support platform (2). The slotting device comprises an inverted U-shaped bracket (8), a first movable plate (6), and a second movable plate (7); the inverted U-shaped bracket (8) comprises a first cross bar (801), a first vertical bar (802), and a second vertical bar (803); the two ends of the first cross bar (801) are respectively fixedly connected to the upper end of the first vertical bar (802) and the upper end of the second vertical bar (803); the endless conveyor belt (1) is located between the first vertical bar (802) and the second vertical bar (803); the first movable plate (6) is fixed to the lower end of the first vertical bar (802) and the two are perpendicular to each other; the second movable plate (7) is fixed to the lower end of the second vertical bar (803) and the two are perpendicular to each other; the first movable plate (6) and the second movable plate (7) are connected by the first A height-adjustable device is fixed on a supporting platform (2); the first movable plate (6) and the second movable plate (7) are respectively located on both sides of an endless conveyor belt (1); a rotating shaft (9) is arranged between the first vertical rod (802) and the second vertical rod (803); a driving device (29) is arranged on the outer side of the first vertical rod (802); the driving device (29) is connected to an external power supply; the driving device (29) is fixed to the first movable plate (6) through a fixing device; one end of the rotating shaft (9) passes through the first vertical rod (802) and is fixedly connected to an output shaft of the driving device (29); the other end of the rotating shaft (9) is fixed to the second vertical rod (803) through a bearing; a shaft (9) and the first vertical rod (802) are connected to each other. The rotating shaft (9) is connected by bearings, and a plurality of cutting assemblies are arranged on the rotating shaft (9), each cutting assembly comprises a first circular cutter (10) and a second circular cutter (11), the spacing between the first circular cutter (10) and the second circular cutter (11) is greater than zero, the radii of the first circular cutter (10) and the second circular cutter (11) are equal, the centers of the surfaces of the first circular cutter (10) and the second circular cutter (11) are both provided with through holes, the diameter of the through holes matches the diameter of the rotating shaft (9), the first circular cutter (10) and the second circular cutter (11) are respectively sleeved on the rotating shaft (9), and the first circular cutter (10) and the second circular cutter (11) are respectively fixed on the rotating shaft (9) by limiting devices,There is a gap between the first circular cutter (10) and the second circular cutter (11) and the upper endless conveyor belt (1); The first height-adjustable device comprises a first screw rod (23), a second screw rod (24), a first sprocket (25), a second sprocket (26), and an endless chain (27); a third threaded through hole is provided on the surface of the first movable plate (6); a spacing between the third threaded through hole and the first vertical rod (802) is greater than zero; the third threaded through hole matches the first screw rod (23); the lower end of the first screw rod (23) passes through the third threaded through hole and is fixed to the support platform (2) through a bearing; the upper end of the first screw rod (23) extends to above the first cross bar (801); the first sprocket (25) is sleeved on the first screw rod (23); the first sprocket (25) is located above the first cross bar (801); the upper end of the first screw rod (23) is provided with A third knob (28) is used to rotate the first screw rod (23); a fourth threaded through hole is provided on the surface of the second movable plate (7); a spacing between the fourth threaded through hole and the second vertical rod (803) is greater than zero; the fourth threaded through hole matches the second screw rod (24); the lower end of the second screw rod (24) passes through the fourth threaded through hole and is fixed to the support platform (2) through a bearing; the second screw rod (24) and the first screw rod (23) are both located on the same side of the first cross bar (801); the second sprocket (26) is sleeved on the second screw rod (24); the height of the second sprocket (26) is equal to the height of the first sprocket (25); and the endless chain (27) passes around the first sprocket (25), the second sprocket (26), and the first sprocket (25) in sequence.

2. The device for pre-grooving the core material of a vacuum insulation panel according to claim 1, characterized in that: A pressure strip (12) is arranged between the first circular cutter (10) and the second circular cutter (11); the length of the pressure strip (12) is greater than three times the diameter of the first circular cutter (10); the length direction of the pressure strip (12) is the same as the length direction of the endless conveyor belt (1); the width of the pressure strip (12) is less than the distance between the first circular cutter (10) and the second circular cutter (11); a connecting rod (13) is fixedly arranged on the upper surface of the pressure strip (12); the lower end of the connecting rod (13) is fixed on the upper surface of the pressure strip (12) and the two are perpendicular to each other; the upper end of the connecting rod (13) is fixed on the first cross bar (801) through a horizontally adjustable device; the distance between the connecting rod (13) and the first circular cutter (10) or the second circular cutter (11) is greater than zero.

3. The device for pre-grooving the core material of a vacuum insulation panel according to claim 2, characterized in that: The horizontally adjustable device comprises a rectangular sleeve (14) arranged on the first cross bar (801), the rectangular sleeve (14) matches the first cross bar (801), the rectangular sleeve (14) is sleeved on the first cross bar (801), the rectangular sleeve (14) slides freely along the length direction of the first cross bar (801), the upper side wall surface of the rectangular sleeve (14) is provided with a first threaded through hole running through from top to bottom, a first tightening screw (16) is arranged in the first threaded through hole, and the first tightening screw (16) 6) matches with the first threaded through hole, the lower end of the first tightening screw (16) extends into the first threaded through hole, the upper end of the first tightening screw (16) is provided with a first knob (17) for rotating the first tightening screw (16), the rear side wall surface of the rectangular sleeve (14) is provided with a fixing rod (15), one end of the fixing rod (15) is fixed to the rear side wall surface of the rectangular sleeve (14), and the other end of the fixing rod (15) is fixedly connected to the upper end of the connecting rod (13) through a second height adjustable device.

4. The device for pre-grooving the core material of a vacuum insulation panel according to claim 3, characterized in that: The second height-adjustable device comprises a circular collar (18), the inner diameter of which matches the diameter of the connecting rod (13), the circular collar (18) being sleeved on the connecting rod (13), the connecting rod (13) being able to slide up and down along the inner wall of the circular collar (18), the rear end of the fixing rod (15) being fixed on the outer wall of the circular collar (18), the side wall surface of the circular collar (18) being provided with a second threaded through hole, the second threaded through hole and the fixing rod (15) being located on both sides of the central axis of the circular collar (18), a second tightening screw (19) being provided in the second threaded through hole, the second tightening screw (19) being matched with the second threaded through hole, one end of the second tightening screw (19) extending into the second threaded through hole, and the other end of the second tightening screw (19) being provided with a second knob (20) for rotating the second tightening screw (19).

5. The device for pre-grooving the core material of a vacuum insulation panel according to claim 4, characterized in that: A core material limiting baffle (21) is arranged above the endless conveyor belt (1); the core material limiting baffle (21) is located on one side of the endless conveyor belt (1); a gap exists between the lower end surface of the core material limiting baffle (21) and the upper surface of the upper layer of the endless conveyor belt (1); the front end of the core material limiting baffle (21) extends to the front end of the endless conveyor belt (1); the rear end of the core material limiting baffle (21) extends to the rear end of the pressure strip (12); the core material limiting baffle (21) is fixed on the support platform (2) via a plurality of L-shaped fixing frames (22). Each L-shaped fixing frame (22) comprises a first fixed cross bar (2201) and a first fixed vertical bar (2202), one end of the first fixed cross bar (2201) is fixed to the upper end of the first fixed vertical bar (2202) and the two are perpendicular to each other, the other end of the first fixed cross bar (2201) is fixed to the outer surface of the core material limiting baffle (21), the lower end of the first fixed vertical bar (2202) is fixed to the upper surface of the supporting platform (2), and there is a gap between the first fixed vertical bar (2202) and the endless conveyor belt (1).

6. The device for pre-grooving the core material of a vacuum insulation panel according to claim 5, characterized in that: The driving device (29) is a driving motor.

7. The device for pre-grooving the core material of a vacuum insulation panel according to claim 6, characterized in that: The fixing device comprises a support plate (30) arranged outside the first movable plate (6), one end of the support plate (30) is fixed on the first movable plate (6), the upper surface of the support plate (30) and the upper surface of the first movable plate (6) are located in the same plane, and the drive motor is fixed on the upper surface of the support plate (30).

8. The device for pre-grooving the core material of a vacuum insulation panel according to claim 7, characterized in that: The limiting device comprises an external thread arranged on the side wall of the rotating shaft (9); a first clamping nut (31) is arranged on the right side of the first circular cutter (10) or the second circular cutter (11); the internal thread of the first clamping nut (31) matches the external thread; a second clamping nut is arranged on the left side of the first circular cutter (10) or the second circular cutter (11); the internal thread of the second clamping nut matches the external thread.

9. The device for pre-grooving the core material of a vacuum insulation panel according to claim 8, characterized in that: The multiple L-shaped fixing frames (22) are evenly distributed on the outer surface of the core material limiting baffle (21).

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