A cardboard warping pretreatment cutting device and cutting method

Abstract

The present invention discloses a cardboard warping pretreatment cutting device and a cutting method, which relate to the field of cardboard processing technology, and include a shell, a conveyor belt is fixedly arranged at the bottom of the inner side of the shell, a driving mechanism is arranged at the top of the inner side of the shell, a hot pressing mechanism is arranged at the bottom of the driving mechanism, and a cutting mechanism is arranged at the outer side of the driving mechanism, a supporting mechanism is arranged at the inner side of the conveyor belt, and a blocking and positioning mechanism is arranged at the rear side of the top of the supporting mechanism; the blocking and positioning mechanism blocks the warped cardboard, and the driving mechanism drives the hot pressing mechanism and the cutting mechanism to move downward synchronously. The present invention can complete the hot pressing and leveling and positioning of the warped cardboard before cutting, so as to ensure the subsequent cutting accuracy and reduce the defective rate. At the same time, the cardboard after cutting does not need to be sprayed with steam and hot pressed, which simplifies the processing steps and saves manpower.

Description

Technical Field

[0001] The invention relates to the technical field of cardboard processing, and in particular to a cardboard warping pretreatment cutting device and a cutting method. Background Art

[0002] Honeycomb cardboard is one of the common cardboards for making packaging boxes. It is light in weight, high in strength and has good cushioning and impact absorption properties. In addition, due to its lightweight, durable and environmentally friendly characteristics, it is suitable for various packaging needs.

[0003] The invention patent with authorization announcement number CN 118124198 B discloses a cardboard cutting device for packaging box making, which belongs to the field of cardboard cutting for packaging box making, and includes a conveying platform composed of a conveying surface and a fixed part, a gantry is mounted on the upper end of the fixed part of the conveying platform, a cutting unit is arranged below the horizontal section of the gantry, and a fixing unit for fixing the honeycomb cardboard is arranged on the conveying platform.

[0004] However, after actual application by technicians in this field, it was found that the above device still has some shortcomings. The most obvious one is that when the processed cardboard is bent, the above device cannot effectively position the bent cardboard, which results in a significant reduction in cutting accuracy during subsequent cutting, thereby increasing the defective rate.

[0005] In addition, in order to avoid the situation where the cardboard is not square enough and the compressive strength is not stable enough after being bent and warped after being made into cartons, the cut cardboard needs to be additionally treated with steam spraying and hot pressing. During this process, the cardboard needs to be transferred many times, which is cumbersome and labor-intensive.

[0006] Therefore, it is necessary to invent a cardboard warping pretreatment cutting device and a cutting method to solve the above problems. Summary of the invention

[0007] The object of the present invention is to provide a cardboard warping pretreatment cutting device and a cutting method, which are provided with a driving mechanism, a hot pressing mechanism, a cutting mechanism, a supporting mechanism and a blocking and positioning mechanism, so that the blocking and positioning mechanism is used to block the warped cardboard, and the driving mechanism is used to drive the hot pressing mechanism and the cutting mechanism to move downward synchronously. After the hot pressing mechanism is lowered, the warped cardboard is hot-pressed, flattened and positioned in cooperation with the blocking and positioning mechanism, and is blocked by the supporting mechanism. The cutting mechanism cuts and opens holes in the warped cardboard after the supporting mechanism is blocked, and then the supporting mechanism outputs the cutting waste inside the cutting mechanism to avoid the cutting waste residue, and the subsequent driving mechanism moves up and resets During the process, the driving mechanism drives the blocking and positioning mechanism to release the blocking of the warped cardboard, and then outputs the cut cardboard after the hot pressing mechanism releases the pressing, so as to solve the problem proposed in the above background technology that when the processed cardboard is warped, the above device cannot effectively position the warped cardboard, which leads to a significant reduction in cutting accuracy during subsequent cutting, thereby increasing the defective rate. In addition, in order to avoid the situation where the warped cardboard is not square enough and the compressive strength is not stable enough after being made into a carton, the cut cardboard needs to be additionally steamed and hot-pressed. In this process, the cardboard needs to be transferred multiple times, which is cumbersome to operate and too labor-intensive.

[0008] To achieve the above-mentioned object, the present invention provides the following technical solutions: a cardboard warping pretreatment cutting device, comprising a shell, a conveyor belt is fixedly arranged at the bottom of the inner side of the shell, a driving mechanism is arranged at the top of the inner side of the shell, a hot pressing mechanism is arranged at the bottom of the driving mechanism and a cutting mechanism is arranged at the outer side of the driving mechanism, a supporting mechanism is arranged at the inner side of the conveyor belt, and a blocking and positioning mechanism is arranged at the rear side of the top of the supporting mechanism;

[0009] The blocking and positioning mechanism blocks the warped paperboard, the driving mechanism drives the hot pressing mechanism and the cutting mechanism to move downward synchronously, and after the hot pressing mechanism descends, it performs hot pressing, flattening and positioning on the warped paperboard in cooperation with the blocking and positioning mechanism, the cutting mechanism cuts holes in the warped paperboard, the supporting mechanism outputs the cutting waste inside the cutting mechanism, and the driving mechanism drives the blocking and positioning mechanism to release the blocking of the warped paperboard.

[0010] Preferably, the driving mechanism comprises a reciprocating screw, a driving motor, an outer sleeve, a first return spring and an inner sleeve;

[0011] The reciprocating screw passes through the top of the outer shell and is rotatably connected to the outer shell through a bearing. The driving motor is fixedly arranged on the top of the outer shell and is transmission-connected to the reciprocating screw. The outer sleeve, the first return spring and the inner sleeve are sequentially sleeved on the outside of the reciprocating screw from top to bottom. The outer sleeve is transmission-connected to the reciprocating screw. The first return spring is fixedly connected between the outer sleeve and the inner sleeve. The inner sleeve is slidably connected to the reciprocating screw and is slidably nested in the inner side of the outer sleeve along the vertical direction.

[0012] Preferably, the hot pressing mechanism comprises a hot pressing box, air holes and an avoidance channel;

[0013] The hot press box body is fixedly arranged at the bottom end of the inner sleeve, a plurality of air holes are arranged, and the plurality of air holes are evenly opened at the bottom of the hot press box body, two avoidance channels are arranged, and the two avoidance channels are respectively opened at both sides of the top of the hot press box body, and a steam input pipe is fixedly penetrated on the front side of the top of the hot press box body.

[0014] Preferably, the cutting mechanism comprises an outer sleeve plate, an extension plate, a first magnetic plate and two sets of cutting components;

[0015] The outer sleeve plate is fixedly sleeved and arranged at the middle part of the outer side of the outer sleeve, the extension plate is fixedly arranged at the middle part of the rear side of the outer sleeve plate, and the first magnetic plate is fixedly arranged at the rear end of the extension plate.

[0016] Preferably, any group of the cutting components comprises a threaded barrel, a one-way screw, a cylindrical cutter and two air inlet channels;

[0017] The threaded barrel passes through the bottom of the outer sleeve plate and is rotatably connected to the outer sleeve plate through a bearing. The one-way screw is threadedly connected to the inner side of the threaded barrel and fixedly connected to the inner wall of the outer sleeve. The cylindrical tool is fixedly arranged at the bottom end of the threaded barrel. The two air inlet channels are opened at the top front side and the bottom back side of the cylindrical tool.

[0018] Preferably, the support mechanism comprises a support plate, an outer sleeve and an air inlet pipe;

[0019] The support plate is fixedly arranged on the inner side of the conveyor belt, the outer sleeve is fixedly penetrated at the bottom of the support plate, and the air inlet pipe is fixedly penetrated at the rear side of the support plate.

[0020] Preferably, the blocking and positioning mechanism comprises a mounting frame, a sliding rod, a second magnetic plate, a U-shaped positioning frame and a second return spring;

[0021] The mounting frame is fixedly arranged on the top of the conveyor belt, the sliding rod slides through the mounting frame, the second magnetic plate is fixedly arranged on the top of the sliding rod, the U-shaped positioning frame is fixedly arranged on the bottom of the sliding rod, and the second return spring is fixedly connected between the mounting frame and the U-shaped positioning frame.

[0022] The present invention also discloses a cardboard warping pretreatment cutting method, which is implemented using the cardboard warping pretreatment cutting device mentioned above, and the method specifically comprises the following steps:

[0023] S1, the conveyor belt conveys the warped cardboard backwards until the warped cardboard moves to above the support plate, at which time the U-shaped positioning frame blocks the warped cardboard, and the warped cardboard is located inside the U-shaped positioning frame;

[0024] S2, start the driving motor, after the driving motor is started, the reciprocating screw is driven to rotate, and the reciprocating screw drives the outer sleeve to descend when rotating, and the inner sleeve is driven to descend through the first return spring when the outer sleeve descends, and the extension plate, the first magnetic plate and the threaded tube are driven to descend through the outer plate, and the hot press box is driven to descend synchronously when the inner sleeve descends. During the descent of the hot press box, the steam input pipe continuously inputs steam into the hot press box, and the steam is sprayed toward the bent paper board through multiple air holes;

[0025] S3, when the outer sleeve descends to a first threshold, the hot press box is attached to the top of the bent paperboard and flattens it. During the flattening process, the bent paperboard moves inside the U-shaped positioning frame under pressure and completes positioning. At this time, due to the obstruction of the support plate, the flattened hot press box cannot continue to descend. Subsequently, as the outer sleeve continues to descend, the first return spring is continuously compressed, and at the same time, the outer sleeve continues to drive the threaded barrel to descend through the outer sleeve plate. During the descent of the threaded barrel, it continues to rotate driven by the one-way screw, and the threaded barrel drives the cylindrical cutter to rotate synchronously when it rotates;

[0026] S4, when the outer sleeve descends to a second threshold, the bottom teeth of the cylindrical cutter contact the flattened cardboard and start cutting. Subsequently, as the cylindrical cutter continues to rotate and move downward, the cylindrical cutter cuts a positioning circular hole on the cardboard, and the circular waste generated by the cutting remains inside the cylindrical cutter;

[0027] S5, when the outer sleeve descends to a third threshold, the outer sleeve moves to the bottom of the reciprocating thread on the outer side of the reciprocating screw, the first magnetic plate is attached to the top of the second magnetic plate and adsorbed, and the cylindrical tool enters the inner side of the outer sleeve, and the airflow input into the inner side of the outer sleeve by the air inlet pipe enters the inner side of the cylindrical tool through the air inlet channel, and then the circular waste inside the cylindrical tool is pushed out from the bottom opening of the cylindrical tool, and then as the reciprocating screw continues to rotate, the outer sleeve moves up and resets;

[0028] S6, when the outer sleeve moves upward, the compressed first return spring is gradually restored, and at the same time, the first magnetic plate is driven upward through the outer sleeve plate and the extension plate, and when the first magnetic plate moves upward, the second magnetic plate is driven upward synchronously, and when the second magnetic plate moves upward, the U-shaped positioning frame is driven upward through the sliding rod, and at the same time, the second return spring is continuously compressed;

[0029] S7, when the upward movement distance of the outer sleeve reaches the fourth threshold, the compressed first return spring is restored, and as the outer sleeve continues to move upward, the outer sleeve drives the inner sleeve to move upward through the first return spring, and the inner sleeve drives the hot press box to release the pressure on the paperboard when moving upward, and then the paperboard is output under the drive of the conveyor belt;

[0030] S8, when the upward movement distance of the outer sleeve reaches the fifth threshold value, the second reset spring is compressed to the extreme value, and then as the first magnetic plate continues to move upward, the second magnetic plate is separated from the bottom of the first magnetic plate, and then the compressed second reset spring drives the U-shaped positioning frame to move downward and reset. During the resetting process of the U-shaped positioning frame, the second magnetic plate is synchronously reset by the sliding rod;

[0031] S9, when the upward movement distance of the outer sleeve reaches the sixth threshold, the outer sleeve arrives at the initial position, that is, the top of the reciprocating thread on the outside of the reciprocating screw, and then as the reciprocating screw continues to rotate, the outer sleeve moves down again.

[0032] Technical effects and advantages of the present invention:

[0033] The present invention is provided with a driving mechanism, a hot pressing mechanism, a cutting mechanism, a supporting mechanism and a blocking and positioning mechanism, so that the blocking and positioning mechanism is used to block the warped cardboard, and the driving mechanism is used to drive the hot pressing mechanism and the cutting mechanism to move downward synchronously. After the hot pressing mechanism is lowered, the hot pressing mechanism cooperates with the blocking and positioning mechanism to perform hot pressing, flattening and positioning on the warped cardboard, and the supporting mechanism is blocked at the same time. The cutting mechanism cuts and opens holes in the warped cardboard after the supporting mechanism is blocked, and then the supporting mechanism outputs the cutting waste inside the cutting mechanism to avoid residual cutting waste. In the subsequent upward resetting process of the driving mechanism, the driving mechanism drives the blocking and positioning mechanism to release the blocking of the warped cardboard, and then outputs the cut cardboard after the hot pressing mechanism releases the pressing. Compared with the same type of device in the prior art, the present invention can complete the hot pressing, flattening and positioning of the warped cardboard before cutting begins, so as to ensure the subsequent cutting accuracy and reduce the defective rate. At the same time, the cardboard after cutting does not need to be subjected to steam spraying and hot pressing treatment, which simplifies the processing steps and saves manpower. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the present invention;

[0036] Figure 3 It is a schematic cross-sectional structure diagram of the driving mechanism, the hot pressing mechanism and the cutting mechanism of the present invention;

[0037] Figure 4 It is a schematic cross-sectional structural diagram of the support mechanism of the present invention;

[0038] Figure 5 It is a schematic diagram of the structure of the blocking and positioning mechanism of the present invention.

[0039] In the figure: 1. outer shell; 2. conveyor belt; 3. driving mechanism; 31. reciprocating screw; 32. driving motor; 33. outer sleeve; 34. first return spring; 35. inner sleeve; 4. hot pressing mechanism; 41. hot pressing box; 42. air hole; 43. avoidance channel; 5. cutting mechanism; 51. outer plate; 52. extension plate; 53. first magnetic plate; 54. threaded barrel; 55. one-way screw; 56. cylindrical tool; 57. air inlet channel; 6. supporting mechanism; 61. supporting plate; 62. outer sleeve; 63. air inlet pipe; 7. blocking positioning mechanism; 71. mounting frame; 72. sliding rod; 73. second magnetic plate; 74. U-shaped positioning frame; 75. second return spring. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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.

[0041] The present invention provides Figure 1-Figure 5 A cardboard warping pretreatment and cutting device shown in the figure comprises a shell 1, a conveyor belt 2 is fixedly arranged at the bottom of the inner side of the shell 1, a driving mechanism 3 is arranged at the top of the inner side of the shell 1, a hot pressing mechanism 4 is arranged at the bottom of the driving mechanism 3, and a cutting mechanism 5 is arranged at the outer side of the driving mechanism 3, a supporting mechanism 6 is arranged at the inner side of the conveyor belt 2, and a blocking and positioning mechanism 7 is arranged at the rear side of the top of the supporting mechanism 6;

[0042] The blocking and positioning mechanism 7 blocks the warped cardboard, the driving mechanism 3 drives the hot pressing mechanism 4 and the cutting mechanism 5 to move downward synchronously, and after the hot pressing mechanism 4 descends, it performs hot pressing, flattening and positioning on the warped cardboard in cooperation with the blocking and positioning mechanism 7, the cutting mechanism 5 cuts and opens holes in the warped cardboard, the supporting mechanism 6 outputs the cutting waste inside the cutting mechanism 5, and the driving mechanism 3 drives the blocking and positioning mechanism 7 to release the blocking of the warped cardboard.

[0043] like Figure 3As shown, the driving mechanism 3 includes a reciprocating screw 31, a driving motor 32, an outer sleeve 33, a first return spring 34 and an inner sleeve 35, wherein the reciprocating screw 31 passes through the top of the outer shell 1 and is rotatably connected to the outer shell 1 through a bearing, the driving motor 32 is fixedly arranged on the top of the outer shell 1 and is transmission-connected to the reciprocating screw 31, the outer sleeve 33, the first return spring 34 and the inner sleeve 35 are sequentially sleeved on the outside of the reciprocating screw 31 from top to bottom, the outer sleeve 33 is transmission-connected to the reciprocating screw 31, the first return spring 34 is fixedly connected between the outer sleeve 33 and the inner sleeve 35, the inner sleeve 35 is slidably connected to the reciprocating screw 31 and is slidably nested in the inner side of the outer sleeve 33 along the vertical direction.

[0044] By setting the above structure, the driving motor 32 can drive the reciprocating screw 31 to rotate after it is started. When the reciprocating screw 31 rotates, it drives the outer sleeve 33 to descend. When the outer sleeve 33 descends, the inner sleeve 35 is driven to descend through the first return spring 34. When the inner sleeve 35 cannot continue to descend, the first return spring 34 is continuously compressed as the outer sleeve 33 continues to descend.

[0045] like Figure 3 As shown, the hot pressing mechanism 4 includes a hot pressing box 41, an air hole 42 and an avoidance channel 43, wherein the hot pressing box 41 is fixedly arranged at the bottom end of the inner sleeve 35, a plurality of the air holes 42 are arranged, and the plurality of the air holes 42 are evenly opened at the bottom of the hot pressing box 41, and two avoidance channels 43 are arranged, and the two avoidance channels 43 are respectively opened on both sides of the top of the hot pressing box 41, and a steam input pipe is fixedly penetrated on the front side of the top of the hot pressing box 41.

[0046] By setting the above structure, when the inner sleeve 35 descends, the hot pressing box 41 is driven to descend synchronously. During the descending process of the hot pressing box 41, the steam input pipe continuously inputs steam into the hot pressing box 41, and the steam is sprayed toward the bent paperboard through multiple air holes 42. Then, the hot pressing box 41 is attached to the top of the bent paperboard and flattens it.

[0047] like Figure 3As shown, the cutting mechanism 5 includes an outer sleeve plate 51, an extension plate 52, a first magnetic plate 53 and two groups of cutting components, and any group of the cutting components includes a threaded barrel 54, a one-way screw 55, a cylindrical cutter 56 and two air inlet channels 57, wherein the outer sleeve plate 51 is fixedly sleeved and arranged in the middle part of the outer side of the outer sleeve 33, the extension plate 52 is fixedly arranged in the middle part of the rear side of the outer sleeve plate 51, the first magnetic plate 53 is fixedly arranged at the rear end of the extension plate 52, the threaded barrel 54 passes through the bottom of the outer sleeve plate 51 and is rotatably connected to the outer sleeve plate 51 through a bearing, the one-way screw 55 is threadedly connected to the inner side of the threaded barrel 54 and fixedly connected to the inner wall of the outer shell 1, the cylindrical cutter 56 is fixedly arranged at the bottom end of the threaded barrel 54, and the two air inlet channels 57 are opened at the top of the front side and the bottom of the back side of the cylindrical cutter 56.

[0048] By setting the above structure, when the outer sleeve plate 51 descends, the extension plate 52, the first magnetic plate 53 and the threaded barrel 54 are driven to descend synchronously. During the descending process, the threaded barrel 54 continues to rotate driven by the one-way screw 55. When the threaded barrel 54 rotates, it drives the cylindrical cutter 56 to rotate synchronously until the bottom teeth of the cylindrical cutter 56 contact the leveled cardboard and start cutting. Subsequently, as the cylindrical cutter 56 continues to rotate and move downward, the cylindrical cutter 56 cuts a positioning circular hole on the cardboard, and the circular waste generated by cutting remains on the inner side of the cylindrical cutter 56.

[0049] like Figure 4 As shown, the support mechanism 6 includes a support plate 61, an outer sleeve 62 and an air intake pipe 63, wherein the support plate 61 is fixedly arranged on the inner side of the conveyor belt 2, the outer sleeve 62 is fixedly arranged through the bottom of the support plate 61, and the air intake pipe 63 is fixedly arranged through the rear side of the support plate 61.

[0050] By setting the above structure, when the cylindrical tool 56 enters the inner side of the outer sleeve 62, the air flow input into the inner side of the outer sleeve 62 by the air inlet pipe 63 enters the cylindrical tool 56 through the air inlet channel 57, and then the circular waste inside the cylindrical tool 56 is pushed out from the bottom opening of the cylindrical tool 56, thereby avoiding waste residue affecting subsequent cutting.

[0051] like Figure 5 As shown, the blocking positioning mechanism 7 includes a mounting frame 71, a sliding rod 72, a second magnetic plate 73, a U-shaped positioning frame 74 and a second return spring 75, wherein the mounting frame 71 is fixedly arranged on the top of the conveyor belt 2, the sliding rod 72 slides through the mounting frame 71, the second magnetic plate 73 is fixedly arranged on the top of the sliding rod 72, the U-shaped positioning frame 74 is fixedly arranged on the bottom end of the sliding rod 72, and the second return spring 75 is fixedly connected between the mounting frame 71 and the U-shaped positioning frame 74.

[0052] By setting the above structure, when the first magnetic plate 53 moves up, it drives the second magnetic plate 73 to move up synchronously. When the second magnetic plate 73 moves up, the U-shaped positioning frame 74 is driven to move up through the sliding rod 72, and the second reset spring 75 is continuously compressed to release the obstruction to the cardboard. After the second reset spring 75 is compressed to the extreme value, as the first magnetic plate 53 continues to move up, the second magnetic plate 73 is detached from the bottom of the first magnetic plate 53, and then the compressed second reset spring 75 drives the U-shaped positioning frame 74 to move down and reset. During the resetting process of the U-shaped positioning frame 74, the second magnetic plate 73 is driven to reset synchronously through the sliding rod 72.

[0053] The present invention also discloses a cardboard warping pretreatment cutting method, which is implemented using the cardboard warping pretreatment cutting device mentioned above, and the method specifically comprises the following steps:

[0054] S1, the conveyor belt 2 conveys the warped paperboard backwards until the warped paperboard moves to above the support plate 61, at which time the U-shaped positioning frame 74 blocks the warped paperboard, and the warped paperboard is located inside the U-shaped positioning frame 74;

[0055] S2, start the driving motor 32, after the driving motor 32 is started, the reciprocating screw 31 is driven to rotate, and the reciprocating screw 31 drives the outer sleeve 33 to descend when rotating, and the inner sleeve 35 is driven to descend through the first return spring 34 when the outer sleeve 33 descends, and the extension plate 52, the first magnetic plate 53 and the threaded tube 54 are driven to descend through the outer sleeve plate 51, and the hot press box 41 is driven to descend synchronously when the inner sleeve 35 descends. During the descent of the hot press box 41, the steam input pipe continuously inputs steam into the hot press box 41, and the steam is sprayed toward the bent paper board through the multiple air holes 42;

[0056] S3, when the outer sleeve 33 descends to a first threshold, the hot pressing box 41 is attached to the top of the bent paperboard and flattens it. During the flattening process, the bent paperboard moves inside the U-shaped positioning frame 74 under pressure and completes positioning. At this time, due to the obstruction of the support plate 61, the flattened hot pressing box 41 cannot continue to descend. Subsequently, as the outer sleeve 33 continues to descend, the first return spring 34 is continuously compressed, and at the same time, the outer sleeve 33 continues to drive the threaded barrel 54 to descend through the outer sleeve plate 51. During the descent of the threaded barrel 54, it continues to rotate driven by the one-way screw 55. When the threaded barrel 54 rotates, it drives the cylindrical cutter 56 to rotate synchronously.

[0057] S4, when the outer sleeve 33 descends to a second threshold, the bottom teeth of the cylindrical cutter 56 contact the flattened paperboard and start cutting. Subsequently, as the cylindrical cutter 56 continues to rotate and move downward, the cylindrical cutter 56 cuts a positioning circular hole on the paperboard, and the circular waste generated by the cutting remains inside the cylindrical cutter 56;

[0058] S5, when the outer sleeve 33 descends to a third threshold, the outer sleeve 33 moves to the bottom of the reciprocating thread on the outer side of the reciprocating screw 31, and the first magnetic plate 53 is attached to the top of the second magnetic plate 73 and adsorbed. At this time, the cylindrical cutter 56 enters the inner side of the outer sleeve 62, and the airflow input into the inner side of the outer sleeve 62 by the air inlet pipe 63 enters the inner side of the cylindrical cutter 56 through the air inlet channel 57, and then the circular waste inside the cylindrical cutter 56 is pushed out from the bottom opening of the cylindrical cutter 56. Subsequently, as the reciprocating screw 31 continues to rotate, the outer sleeve 33 moves up and resets.

[0059] S6, when the outer sleeve 33 moves upward, the compressed first return spring 34 is gradually restored, and at the same time, the first magnetic plate 53 is moved upward through the outer sleeve plate 51 and the extension plate 52. When the first magnetic plate 53 moves upward, the second magnetic plate 73 is moved upward synchronously. When the second magnetic plate 73 moves upward, the U-shaped positioning frame 74 is moved upward through the sliding rod 72, and the second return spring 75 is continuously compressed.

[0060] S7, when the upward movement distance of the outer sleeve 33 reaches the fourth threshold, the compressed first return spring 34 is restored, and as the outer sleeve 33 continues to move upward, the outer sleeve 33 drives the inner sleeve 35 to move upward through the first return spring 34, and when the inner sleeve 35 moves upward, the hot press box 41 is driven to release the pressure on the paperboard, and then the paperboard is output under the drive of the conveyor belt 2;

[0061] S8, when the upward movement distance of the outer sleeve 33 reaches the fifth threshold value, the second reset spring 75 is compressed to the extreme value, and then as the first magnetic plate 53 continues to move upward, the second magnetic plate 73 is separated from the bottom of the first magnetic plate 53, and then the compressed second reset spring 75 drives the U-shaped positioning frame 74 to move downward and reset. During the resetting process of the U-shaped positioning frame 74, the second magnetic plate 73 is synchronously reset by the sliding rod 72;

[0062] S9, when the upward movement distance of the outer sleeve 33 reaches the sixth threshold, the outer sleeve 33 arrives at the initial position, that is, the top of the reciprocating thread on the outside of the reciprocating screw 31, and then as the reciprocating screw 31 continues to rotate, the outer sleeve 33 moves down again.

[0063] It should also be noted that the first threshold, the second threshold and the third threshold increase in sequence, and the fourth threshold, the fifth threshold and the sixth threshold increase in sequence. At the same time, the first threshold, the second threshold, the third threshold, the fourth threshold, the fifth threshold and the sixth threshold are recorded for the convenience of accurately describing the actual working conditions of the scheme;

[0064] When the solution of the present application is actually produced, according to the actual specifications of the reciprocating screw 31, the first threshold value, the second threshold value, the third threshold value, the fourth threshold value, the fifth threshold value and the sixth threshold value are all specific values.

[0065] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cardboard warping pretreatment and cutting device, characterized in that: It comprises a shell (1), a conveyor belt (2) is fixedly arranged at the bottom of the inner side of the shell (1), a driving mechanism (3) is arranged at the top of the inner side of the shell (1), a hot pressing mechanism (4) is arranged at the bottom of the driving mechanism (3), and a cutting mechanism (5) is arranged outside the driving mechanism (3), a supporting mechanism (6) is arranged inside the conveyor belt (2), and a blocking positioning mechanism (7) is arranged at the rear side of the top of the supporting mechanism (6); The blocking and positioning mechanism (7) blocks the warped paperboard, the driving mechanism (3) drives the hot pressing mechanism (4) and the cutting mechanism (5) to move downward synchronously, and after the hot pressing mechanism (4) is lowered, the hot pressing mechanism (4) performs hot pressing, leveling and positioning on the warped paperboard in cooperation with the blocking and positioning mechanism (7), the cutting mechanism (5) cuts and opens holes in the warped paperboard, the supporting mechanism (6) outputs the cutting waste inside the cutting mechanism (5), and the driving mechanism (3) drives the blocking and positioning mechanism (7) to release the blocking of the warped paperboard; The hot pressing mechanism (4) comprises a hot pressing box (41), air holes (42) and an avoidance channel (43); The hot press box (41) is fixedly arranged at the bottom end of the inner sleeve (35), a plurality of air holes (42) are arranged, and the plurality of air holes (42) are evenly arranged at the bottom of the hot press box (41), two avoidance channels (43) are arranged, and the two avoidance channels (43) are respectively arranged at two sides of the top of the hot press box (41), and a steam input pipe is fixedly arranged and penetrated through the front side of the top of the hot press box (41); The cutting mechanism (5) comprises an outer sleeve plate (51), an extension plate (52), a first magnetic plate (53) and two sets of cutting components; The outer sleeve plate (51) is fixedly sleeved and arranged at the middle part of the outer side of the outer sleeve (33); the extension plate (52) is fixedly arranged at the middle part of the rear side of the outer sleeve plate (51); and the first magnetic plate (53) is fixedly arranged at the rear end of the extension plate (52); Any group of the cutting components comprises a threaded barrel (54), a one-way screw (55), a cylindrical cutter (56) and two air inlet channels (57); The threaded barrel (54) passes through the bottom of the outer sleeve (51) and is rotatably connected to the outer sleeve (51) via a bearing; the one-way screw (55) is threadedly connected to the inner side of the threaded barrel (54) and fixedly connected to the inner wall of the outer shell (1); the cylindrical tool (56) is fixedly arranged at the bottom end of the threaded barrel (54); and the two air inlet passages (57) are provided at the top of the front side and the bottom of the back side of the cylindrical tool (56); The support mechanism (6) comprises a support plate (61), an outer sleeve (62) and an air intake pipe (63); The support plate (61) is fixedly arranged on the inner side of the conveyor belt (2), the outer sleeve (62) is fixedly arranged through the bottom of the support plate (61), and the air intake pipe (63) is fixedly arranged through the rear side of the support plate (61); The blocking positioning mechanism (7) comprises a mounting frame (71), a sliding rod (72), a second magnetic plate (73), a U-shaped positioning frame (74) and a second return spring (75); The mounting frame (71) is fixedly arranged on the top of the conveyor belt (2), the sliding rod (72) slides through the mounting frame (71), the second magnetic plate (73) is fixedly arranged on the top of the sliding rod (72), the U-shaped positioning frame (74) is fixedly arranged on the bottom of the sliding rod (72), and the second return spring (75) is fixedly connected between the mounting frame (71) and the U-shaped positioning frame (74).

2. The cardboard warping pretreatment and cutting device according to claim 1, characterized in that: The driving mechanism (3) comprises a reciprocating screw (31), a driving motor (32), an outer sleeve (33), a first return spring (34) and an inner sleeve (35); The reciprocating screw (31) passes through the top of the outer shell (1) and is rotationally connected to the outer shell (1) via a bearing. The driving motor (32) is fixedly arranged on the top of the outer shell (1) and is transmission-connected to the reciprocating screw (31). The outer sleeve (33), the first return spring (34) and the inner sleeve (35) are sequentially sleeved and arranged on the outside of the reciprocating screw (31) from top to bottom. The outer sleeve (33) is transmission-connected to the reciprocating screw (31). The first return spring (34) is fixedly connected between the outer sleeve (33) and the inner sleeve (35). The inner sleeve (35) is slidably connected to the reciprocating screw (31) and is slidably nested and arranged on the inside of the outer sleeve (33) in a vertical direction.

3. A cardboard warping pretreatment and cutting method, characterized in that: The method is implemented using the cardboard warping pretreatment cutting device as claimed in claim 2, and specifically comprises the following steps: S1, the conveyor belt (2) conveys the warped paperboard backwards until the warped paperboard moves to above the support plate (61), at which time the U-shaped positioning frame (74) blocks the warped paperboard, and the warped paperboard is located inside the U-shaped positioning frame (74); S2, starting the driving motor (32), after which the driving motor (32) is started, drives the reciprocating screw (31) to rotate, and when the reciprocating screw (31) rotates, drives the outer sleeve (33) to descend, and when the outer sleeve (33) descends, drives the inner sleeve (35) to descend via the first return spring (34), and drives the extension plate (52), the first magnetic plate (53) and the threaded tube (54) to descend via the outer sleeve plate (51), and when the inner sleeve (35) descends, drives the hot press box (41) to descend synchronously, and when the hot press box (41) descends, the steam input pipe continuously inputs steam into the hot press box (41), and the steam is sprayed toward the warped paper board through the plurality of air holes (42); S3, when the outer sleeve (33) descends a distance that reaches a first threshold, the hot pressing box (41) is attached to the top of the bent paperboard and flattens it. During the flattening process, the bent paperboard moves inside the U-shaped positioning frame (74) under pressure and completes positioning. At this time, due to the obstruction of the support plate (61), the flattened hot pressing box (41) cannot continue to descend. Subsequently, as the outer sleeve (33) continues to descend, the first return spring (34) is continuously compressed. At the same time, the outer sleeve (33) continues to drive the threaded barrel (54) to descend through the outer sleeve plate (51). During the descent of the threaded barrel (54), it continues to rotate under the drive of the one-way screw (55). When the threaded barrel (54) rotates, it drives the cylindrical cutter (56) to rotate synchronously. S4, when the outer sleeve (33) descends to a second threshold, the bottom teeth of the cylindrical cutter (56) contact the flattened paperboard and start cutting, and subsequently, as the cylindrical cutter (56) continues to rotate and move downward, the cylindrical cutter (56) cuts a positioning circular hole on the paperboard, and the circular waste generated by the cutting remains inside the cylindrical cutter (56); S5, when the outer sleeve (33) descends a distance that reaches a third threshold, the outer sleeve (33) moves to the bottom end of the reciprocating thread on the outer side of the reciprocating screw (31), and the first magnetic plate (53) is attached to the top of the second magnetic plate (73) and adsorbed, and the cylindrical tool (56) enters the inner side of the outer sleeve (62), and the airflow input into the inner side of the outer sleeve (62) by the air inlet pipe (63) enters the inner side of the cylindrical tool (56) through the air inlet channel (57), and then the circular waste material inside the cylindrical tool (56) is pushed out from the bottom opening of the cylindrical tool (56), and then as the reciprocating screw (31) continues to rotate, the outer sleeve (33) moves upward and resets; S6, when the outer sleeve (33) moves upward, the compressed first return spring (34) is gradually restored, and at the same time, the first magnetic plate (53) is driven upward through the outer sleeve plate (51) and the extension plate (52), and when the first magnetic plate (53) moves upward, the second magnetic plate (73) is driven upward synchronously, and when the second magnetic plate (73) moves upward, the U-shaped positioning frame (74) is driven upward through the sliding rod (72), and at the same time, the second return spring (75) is continuously compressed; S7, when the upward movement distance of the outer sleeve (33) reaches a fourth threshold value, the compressed first return spring (34) is restored, and as the outer sleeve (33) continues to move upward, the outer sleeve (33) drives the inner sleeve (35) to move upward through the first return spring (34), and when the inner sleeve (35) moves upward, it drives the hot pressing box (41) to release the pressure on the paperboard, and then the paperboard is output under the drive of the conveyor belt (2); S8, when the upward movement distance of the outer sleeve (33) reaches the fifth threshold value, the second reset spring (75) is compressed to the extreme value, and then as the first magnetic plate (53) continues to move upward, the second magnetic plate (73) is separated from the bottom of the first magnetic plate (53), and then the compressed second reset spring (75) drives the U-shaped positioning frame (74) to move downward and reset, and during the resetting process of the U-shaped positioning frame (74), the second magnetic plate (73) is driven to reset synchronously through the sliding rod (72); S9, when the upward movement distance of the outer sleeve (33) reaches the sixth threshold value, the outer sleeve (33) reaches the initial position, that is, the topmost point of the reciprocating thread on the outer side of the reciprocating screw (31), and subsequently, as the reciprocating screw (31) continues to rotate, the outer sleeve (33) moves downward again.

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