EPE board hole opening equipment

Abstract

The utility model discloses a hole-opening device for pearl cotton board, and relates to the technical field of pearl cotton board processing. The hole-opening device for pearl cotton board comprises a frame, a rotating assembly, a driving member and a plurality of scrapers. The frame is provided with a hole-opening device, and the hole-opening device comprises an electric heating ring for opening holes. The frame is provided with a material-dropping hole for dropping waste materials, and the material-dropping hole is aligned with the electric heating ring. The rotating assembly has a rotatable rotating part, and the driving member is installed on the rotating part. The rotating part drives the driving member to rotate. The plurality of scrapers are all driven and connected to the driving member, and the driving member drives the scraper to move closer to or away from the electric heating ring. The driving member is used to make the scraper move toward the electric heating ring after the electric heating ring completes the hole-opening work and fits the outer surface of the electric heating ring, and the driving member and the scraper are driven to rotate together by the rotating part to scrape off the debris on the surface of the electric heating ring.

Description

Technical Field

[0001] The utility model relates to the technical field of pearl cotton board processing, in particular to a hole-making device for a pearl cotton board. Background Art

[0002] Pearl cotton foam board is also called pearl cotton board. Pearl cotton foam board is made of EPE pearl cotton material. The width and thickness of the pearl cotton foam board can be freely processed and customized, and the processability is excellent. At the same time, the pearl cotton board can be opened at the corresponding position through the opening equipment according to the needs.

[0003] Some existing pearl cotton boards are opened with holes through electric heating rings. The electric heating rings open holes in the pearl cotton boards through high temperature. When the electric heating rings heat and punch holes, part of the pearl cotton may melt and adhere to the heating rings. When the pearl cotton adhered to the electric heating rings accumulates too much, it will affect the subsequent stamping process, reduce the hole opening efficiency, and also cause the quality of the opened holes to decline. Utility Model Content

[0004] The main purpose of the utility model is to provide a hole-opening device for an EPE board, which is intended to regularly clean the EPE adhering to the electric heating ring to avoid affecting the hole-opening process.

[0005] In order to achieve the above-mentioned purpose, the hole-opening device of the pearl cotton board proposed in the utility model comprises:

[0006] A frame, wherein a hole-opening device is provided on the frame, and the hole-opening device comprises an electric heating ring for opening a hole, and a material-dropping hole for dropping waste is provided on the frame, and the material-dropping hole is aligned with the electric heating ring;

[0007] A rotating assembly, wherein the rotating assembly has a rotating portion that can be rotatably arranged:

[0008] A driving member, wherein the driving member is mounted on the rotating part, and the rotating part drives the driving member to rotate:

[0009] A plurality of scrapers are provided, and the plurality of scrapers are all driven and connected to the driving member, and the driving member drives the scrapers to move toward or away from the electric heating ring.

[0010] Preferably, an arc-shaped groove is formed on one side of the scraper plate facing the electric heating ring, so that when the scraper plate is in contact with the electric heating ring of the hole-opening device, it can be sleeved on the outer peripheral side of the electric heating ring.

[0011] Preferably, the rotating assembly comprises:

[0012] Auxiliary box, the auxiliary box is attached to the driving member, and the auxiliary box is used to support the driving member:

[0013] A first motor is disposed in the auxiliary box, the first motor is drivingly connected to the driving member, and the first motor drives the driving member to rotate so as to drive the plurality of scrapers to rotate.

[0014] Preferably, the driving member comprises:

[0015] An electric push rod is drivingly connected to the first motor, and a connecting plate is drivingly connected to the electric push rod, and the plurality of scrapers are arranged on a side of the connecting plate facing the electric heating ring, so that when the electric push rod drives the connecting plate to move toward the electric heating ring, the plurality of scrapers are driven to move toward the electric heating ring.

[0016] Preferably, the blanking hole is for the connecting plate to pass through, and the connecting plate is slidably connected in the blanking hole, so that when the connecting plate moves toward the electric heating ring, the scraper is driven to approach the electric heating ring.

[0017] Preferably, a second motor is provided on the lower surface of the frame, and the second motor is driven and connected to a connecting shaft. The rotating assembly is provided on the outer peripheral side of the connecting shaft to drive the rotating assembly to rotate when the connecting shaft rotates, thereby adjusting the scraper position.

[0018] Preferably, a collecting box for collecting waste is provided on the lower side of the frame, and the collecting box is located on a side of the drop hole away from the connecting shaft.

[0019] Preferably, a guide assembly for guiding the sliding direction of the waste is provided on the outer peripheral side of the connecting shaft, and the connecting shaft drives the guide assembly and the rotating assembly to rotate so that one of the guide assembly and the rotating assembly is aligned with the drop hole.

[0020] Preferably, the guide assembly includes a support plate, a telescopic member and an inclined block, the support plate is arranged on the connecting shaft, the telescopic member is arranged on the support plate, and the telescopic member extends toward the frame, the inclined block is arranged at one end of the telescopic member extending toward the frame, so that the telescopic member drives the inclined block to move toward or away from the frame, and the inclined block is provided with an inclined surface, which is used to guide the waste to slide toward the collection box.

[0021] Preferably, the inclined surface is arranged toward a side away from the second motor, and the inclined surface is inclined toward a side away from the frame to guide the waste to slide into the collection box.

[0022] In the technical solution provided by the utility model, the rotating part drives the driving member to rotate, and the plurality of scrapers are all driven and connected to the driving member, and the driving member drives the scrapers to move toward or away from the electric heating ring. After the electric heating ring completes the hole opening work, the scrapers are moved toward the electric heating ring and fit the outer surface of the electric heating ring through the driving member, and the driving member and the scrapers are driven to rotate together through the rotating part to scrape off debris on the surface of the electric heating ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model 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 some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0024] Figure 1 A three-dimensional schematic diagram of an embodiment of a hole-opening device for an EPE board provided by the utility model;

[0025] Figure 2 for Figure 1 A cross-sectional schematic diagram of the hole-opening device of the pearl cotton board;

[0026] Figure 3 for Figure 2 A schematic diagram of the connection structure between the rotating assembly and the driving member;

[0027] Figure 4 for Figure 2 Schematic diagram of the connection structure between the connecting shaft and the guide assembly.

[0028] Description of Figure Numbers:

[0029] 1. Frame; 2. Hole-opening device; 3. Rotating assembly; 31. Auxiliary box; 32. First motor; 4. Driving member; 41. Electric push rod; 42. Connecting plate; 5. Scraper; 6. Second motor; 7. Connecting shaft; 8. Guide assembly; 81. Support plate; 82. Telescopic member; 83. Inclined block; 9. Blanking hole.

[0030] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0034] The utility model provides a hole-opening device for pearl cotton board. Figures 1 to 4 This is an embodiment of the hole-opening device for the pearl cotton board provided by the utility model.

[0035] Please also read Figures 1 to 3 The hole-opening device of the pearl cotton board includes a frame 1, a rotating component 3, a driving member 4 and a plurality of scrapers 5. The frame 1 is provided with a hole-opening device 2, and the hole-opening device 2 includes an electric heating ring for opening holes. The frame 1 is provided with a blanking hole 9 for dropping waste materials, and the blanking hole 9 is aligned with the electric heating ring. The rotating component 3 has a rotatable rotating part, and the driving member 4 is installed on the rotating part. The rotating part drives the driving member 4 to rotate. The plurality of scrapers 5 are all driven and connected to the driving member 4, and the driving member 4 drives the scrapers 5 to move closer to or away from the electric heating ring.

[0036] There are many types of hole-opening equipment for pearl cotton boards. However, when the hole-opening equipment opens holes in the pearl cotton board, some debris will be attached to the tool to a certain extent. As the tool moves, some debris will also fall off the tool. However, the equipment for opening holes through electric heating rings is different. The electric heating rings are opened by high-temperature melting, which causes part of the melted pearl cotton board to adhere to the electric heating rings to form debris, and these debris are difficult to separate from the electric heating rings by themselves. The accumulation of these debris will cause the hole-opening efficiency and quality of the electric heating rings to decrease. Therefore, it is necessary to set up a structure for cleaning the debris on the electric heating rings.

[0037] After the electric heating ring completes the hole opening work on the pearl cotton board, the driving part 4 is started, driving the scraper 5 to move toward the electric heating ring until the scraper 5 is in contact with the electric heating ring and then the driving part 4 is closed. At this time, the rotating component 3 is started, and the rotating component 3 drives the driving part 4 to rotate, and the scraper 5 rotates through the driving part 4. The scraper 5 scrapes off the debris on the surface of the electric heating ring while rotating, so that the electric heating ring will not be affected by the debris attached to the surface of the electric heating ring when performing the next hole opening work, thereby improving the hole opening efficiency and quality of the hole opening equipment.

[0038] The driving member 4 drives the scraper 5 toward the electric heating ring, so that the scraper 5 can scrape the electric heating rings at different heights, and then the scraper 5 can clean the electric heating rings that have completed the processing task and returned to the initial position. At the same time, it also ensures that the scraper 5 can stay away from the electric heating ring after completing the cleaning work to avoid affecting the processing process of the electric heating ring.

[0039] The pearl cotton board is fixed on the frame 1 for processing, and the electric heating ring is also used to perform hole processing on the pearl cotton board in the frame 1. After the hole processing is completed, the electric heating ring is easy to collide with the frame 1. Therefore, a blanking hole 9 is opened on the frame 1 so that the electric heating ring will not collide with the frame 1 when the processing is completed. At the same time, the waste formed during the hole opening can fall off directly, so that the staff does not need to perform waste separation work and can separate the waste from the finished product.

[0040] Therefore, in the technical solution provided by the utility model, the rotating part drives the driving member 4 to rotate, and the plurality of scrapers 5 are all driven and connected to the driving member 4, and the driving member 4 drives the scrapers 5 to move toward or away from the electric heating ring, and the scrapers 5 are moved toward the electric heating ring and fit against the outer surface of the electric heating ring after the electric heating ring completes the hole opening work through the driving member 4, and the driving member 4 and the scrapers 5 are driven to rotate together through the rotating part to scrape off the debris on the surface of the electric heating ring.

[0041] In order to make the scraper 5 clean the debris on the surface of the electric heating ring during the rotation, it is necessary to make the shape of the scraper 5 match the outer surface of the electric heating ring. The scraper 5 is provided with an arc groove on one side facing the electric heating ring, so that when the scraper 5 is in contact with the electric heating ring of the hole-opening device 2, it is sleeved on the outer peripheral side of the electric heating ring. When the outer shape of the electric heating ring is an arc shape, the cross-section of the electric heating ring is circular. Therefore, an arc groove that can fit with the outer surface of the electric heating ring is provided on the scraper 5, so that the scraper 5 can fit more closely with the outer surface of the electric heating ring during the rotation, thereby more thoroughly scraping off the debris attached to the scraper 5. When the electric heating ring opens a hole, the part that contacts the pearl cotton board is the arc surface on the lower side and the arc surfaces on the inner and outer sides. Therefore, the arc groove needs to be able to wrap the arc surface on the lower side of the electric heating ring and the arc surfaces on the inner and outer sides to the inside when designing, so that the scraper 5 can comprehensively clean up the debris attached to the electric heating ring.

[0042] The rotating assembly 3 needs to drive the driving member 4 to rotate, and the driving member 4 drives the scraper 5 to rotate together, so the structure of the rotating assembly 3 needs to be able to drive other parts to rotate.

[0043] Specifically, in an embodiment of the utility model, the rotating assembly 3 includes an auxiliary box 31 and a first motor 32. The auxiliary box 31 is fitted with the driving member 4. The auxiliary box 31 is used to support the driving member 4. The first motor 32 is arranged in the auxiliary box 31. The first motor 32 drives the driving member 4 to rotate, thereby driving the multiple scrapers 5 to rotate.

[0044] The first motor 32 is the rotating part, and the first motor 32 is connected to the driving member 4 through the output shaft, and the driving member 4 is driven to rotate through the output shaft, so that the scraper 5 rotates. At the same time, the auxiliary box 31 protects the first motor 32 and supports the driving member 4 to prevent the driving member 4 from shaking during the rotation, causing the output shaft of the first motor 32 to be damaged by the continuous shaking, so that the first motor 32 cannot be used. After the first motor 32 is started, the output shaft drives the driving member 4 to rotate on the auxiliary box 31, and the driving member 4 drives the scraper 5 to rotate together to perform the scraping work.

[0045] The driving member 4 will continuously rub against the auxiliary box 31 during the rotation process. The friction will affect the rotation speed of the driving member 4 and will also accelerate the damage of the auxiliary box 31 or the driving member 4. Therefore, a component or structure can be added between the auxiliary box 31 and the driving member 4 to reduce the impact of friction. For example, a plurality of rolling grooves are opened on the auxiliary box 31, and balls are connected to the inside of the rolling grooves. When the driving member 4 rotates, the balls are driven to rotate in the rolling grooves, thereby reducing the friction force on the opposite side of the auxiliary box 31 and the driving member 4.

[0046] The driving component 4 is used to drive the scraper 5 to move toward or away from the electric heating ring, so that the scraper 5 can fit the electric heating ring to clean the debris on the electric heating ring. At the same time, the scraper 5 can be moved away from the electric heating ring to avoid hindering the processing process of the electric heating ring. Therefore, the structure of the driving component 4 needs to be able to drive other objects to move toward another object.

[0047] Specifically, in an embodiment of the utility model, the driving member 4 includes an electric push rod 41, which is drivingly connected to the first motor 32, and a connecting plate 42 is drivingly connected to the electric push rod 41, and the plurality of scrapers 5 are all arranged on the side of the connecting plate 42 facing the electric heating ring, so that when the electric push rod 41 drives the connecting plate 42 to move toward the electric heating ring, the plurality of scrapers 5 are driven to move toward the electric heating ring.

[0048] When it is necessary to drive the scraper 5 towards or away from the electric heating ring, the electric push rod 41 is started. The electric push rod 41 drives the connecting plate 42 to move towards or away from the electric heating ring through the output shaft. At the same time, the connecting plate 42 drives multiple scrapers 5 on the connecting plate 42 to move towards or away from the electric heating ring, so that the scraper 5 can be in contact with the electric heating ring for cleaning, or can be away from the electric heating ring.

[0049] The size of the holes required to be opened on the pearl cotton board varies according to needs, so the size of the electric heating ring needs to be designed according to the size of the required holes. Therefore, the specific distribution of the scraper 5 on the connecting plate 42 needs to be adapted according to the size of the electric heating ring, so that the scraper 5 and the arc groove on the scraper 5 can be completely aligned with the electric heating ring, so that the scraper 5 can fit the outer surface of the electric heating ring after moving toward the electric heating ring.

[0050] Furthermore, the blanking hole 9 is for the connecting plate 42 to pass through, and the connecting plate 42 is slidably connected in the blanking hole 9, so that when the connecting plate 42 moves toward the electric heating ring, the scraper 5 is driven to approach the electric heating ring.

[0051] The electric heating ring will return to its initial position after completing all processing tasks. At this time, the electric heating ring is located inside the frame 1, so the scraper 5 needs to enter the frame 1 to clean the electric heating ring. At the same time, the connecting plate 42 also needs to enter the frame 1 together with the scraper 5. Therefore, when the connecting plate 42 is driven by the driving member 4 to drive the scraper 5 toward the electric heating ring, it must be able to pass through the blanking hole 9 aligned with the electric heating ring, so that the connecting plate 42 can drive the scraper 5 to enter the frame 1 to clean the electric heating ring, and it will not be blocked by the frame 1 and blocked outside the frame 1, thereby causing the scraper 5 to be unable to contact the electric heating ring to clean the electric heating ring.

[0052] See also Figure 4The waste generated after the electric heating ring is processed will fall to the outside of the frame 1 through the blanking hole 9 and detach from the pearl cotton board. There are connecting plates 42 and scrapers 5 below the blanking hole 9. The waste will fall onto the connecting plate 42 or cover the scrapers 5. When covering the scrapers 5, the scrapers 5 cannot contact the electric heating ring, making it impossible for the scrapers 5 to perform cleaning work. Therefore, it is very troublesome for the staff to manually clean it in time. Therefore, it is necessary to avoid the waste from falling on the connecting plate 42 or covering the scrapers 5.

[0053] Specifically, in an embodiment of the utility model, a second motor 6 is provided on the lower surface of the frame 1, and the second motor 6 is driven and connected to a connecting shaft 7. The rotating component 3 is provided on the outer peripheral side of the connecting shaft 7 to drive the rotating component 3 to rotate when the connecting shaft 7 rotates, thereby adjusting the position of the scraper 5.

[0054] After the hole-punching equipment is started, the electric heating ring begins to punch holes in the pearl cotton board. At this time, the second motor 6 is started, and the second motor 6 drives the connecting shaft 7 to rotate through the output shaft, and drives the rotating component 3 to rotate through the connecting shaft 7. The rotating part on the rotating component 3 drives the driving member 4 to rotate around the connecting shaft 7, so that the connecting plate 42 drives the scraper 5 to rotate with the driving member 4, thereby changing the positions of the connecting plate 42 and the scraper 5, so that the connecting plate 42 and the scraper 5 are no longer aligned with the blanking hole 9. At this time, the waste material after the electric heating ring processing is completed can fall directly to the ground. At the same time, the second motor 6 is started again and drives the connecting plate 42 and the scraper 5 to rotate in the opposite direction and move back to the initial position, so as to align with the blanking hole 9, which is convenient for cleaning the electric heating ring.

[0055] Furthermore, a collecting box for collecting waste is provided on the lower side of the frame 1 , and the collecting box is located on a side of the drop hole 9 away from the connecting shaft 7 .

[0056] The waste generated after the pearl cotton board is opened can be recycled and reused, so it is necessary to collect these wastes. Therefore, a collection box is set on the lower side of the frame 1 for collecting these wastes. At the same time, in order to avoid the position of the collection box hindering the movement of the rotating component 3, the collection box cannot be placed on the lower side of the blanking hole 9 and directly aligned with the blanking hole 9, so the collection box is placed on the side of the blanking hole 9 away from the connecting shaft 7.

[0057] The waste falls directly to the ground through the drop hole 9, and the staff needs to collect it later, which is troublesome. Therefore, a guide component 8 for guiding the sliding direction of the waste is provided on the outer peripheral side of the connecting shaft 7. The connecting shaft 7 drives the guide component 8 and the rotating component 3 to rotate so that one of the guide component 8 and the rotating component 3 is aligned with the drop hole 9. The falling waste is guided to slide toward the collection box by the guide component 8, so that the staff does not need to perform the collection work, which greatly improves the work efficiency and reduces the labor intensity of the staff. In addition, the guide component 8 and the rotating component 3 are both arranged on the outer peripheral side of the connecting shaft 7, so that when the connecting shaft 7 rotates, the guide component 8 and the rotating component 3 can be driven to rotate together, so that the guide component 8 and the rotating component 3 change positions with each other, so that the guide component 8 and the rotating component 3 can be aligned with the drop hole 9. When the electric heating ring is opening a hole, the guide component 8 and the drop hole 9 are aligned to guide the sliding direction of the waste. After the electric heating ring has completed the hole opening, the rotating component 3 is aligned with the drop hole 9 to clean up the debris on the electric heating ring.

[0058] The function of the guide assembly 8 is to guide the sliding direction of the waste. There are many structural compositions that can achieve this function. Specifically, in an embodiment of the utility model, the guide assembly 8 includes a support plate 81, a telescopic member 82 and an inclined block 83. The support plate 81 is arranged on the connecting shaft 7, the telescopic member 82 is arranged on the support plate 81, and the telescopic member 82 extends toward the frame 1. The inclined block 83 is arranged at one end of the telescopic member 82 extending toward the frame 1, so that the telescopic member 82 drives the inclined block 83 to move closer to or away from the frame 1. The inclined block 83 is provided with an inclined surface, and the inclined surface is used to guide the waste to slide toward the collection box.

[0059] The inclined block 83 guides the sliding direction of the waste through the inclined surface. In order to ensure that the waste can fall into the collection box, the lowest end of the inclined surface needs to be higher than the collection box so that the waste can fall into the collection box when it leaves the inclined surface. Therefore, the height of the inclined surface needs to be appropriately adjusted according to the height of the collection box.

[0060] The telescopic rod is a common structure that can be automatically raised or shortened. The simplest telescopic rod structure is a single cylinder. The cylinder is installed on the support plate 81. At the same time, the output shaft of the cylinder is connected to the inclined block 83. After the cylinder is started, the inclined block 83 is driven to rise or fall, thereby adjusting the height of the inclined block 83. By adjusting the height of the inclined block 83, the height of the inclined surface of the inclined block 83 is changed, and the lowest end of the inclined surface is higher than the collection box to ensure that every waste can fall into the collection box.

[0061] In order to ensure the normal rotation of the connecting shaft 7, the guide assembly 8 and the rotating assembly 3, the connecting shaft 7, the guide assembly 8 and the rotating assembly 3 are not in contact with the bottom surface, so the connecting shaft 7, the guide assembly 8 and the rotating assembly 3 are all selected in mid-air, so that the second motor 6 needs to bear the tension brought by the connecting shaft 7, the guide assembly 8 and the rotating assembly 3. In order to reduce the burden on the second motor 6, a supporting structure can be added between the bottom surfaces of the guide assembly 8, for example, a roller is added between the bottom surfaces of the guide assembly 8, and a roller is also added between the rotating assembly 3 and the ground to support the guide assembly 8 and the rotating assembly 3.

[0062] Furthermore, the inclined surface is arranged toward a side away from the second motor 6 , and the inclined surface is inclined toward a side away from the frame 1 , so as to guide the waste to slide into the collection box.

[0063] The inclined block 83 guides the sliding direction of the waste through the inclined surface, so the inclination direction of the inclined surface must be restricted so that the inclined surface is inclined toward the collection port of the collection box, so that the waste falling on the inclined surface of the inclined block 83 can slide along the inclination direction of the inclined surface into the collection box.

[0064] At the same time, there is no obstruction on the inclined block 83, so the waste falling on the inclined block 83 may move obliquely and move in a direction away from the collection box, thereby causing the waste to fall on the bottom surface near the collection box. Therefore, a limiting structure can be set on the inclined block 83 to prevent the waste from sliding toward the side of the collection box.

[0065] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the concept of the utility model, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A hole-opening device for pearl cotton board, characterized in that: include: A frame, wherein a hole-opening device is provided on the frame, and the hole-opening device comprises an electric heating ring for opening a hole, and a material-dropping hole for dropping waste is provided on the frame, and the material-dropping hole is aligned with the electric heating ring; A rotating assembly, wherein the rotating assembly has a rotating portion that can be rotatably arranged: A driving member, wherein the driving member is mounted on the rotating part, and the rotating part drives the driving member to rotate: A plurality of scrapers are provided, and the plurality of scrapers are all driven and connected to the driving member, and the driving member drives the scrapers to move toward or away from the electric heating ring.

2. The perforating device of the pearl cotton board as claimed in claim 1, characterized in that: The scraper is provided with an arc groove on one side facing the electric heating ring, so that when the scraper is in contact with the electric heating ring of the hole-opening device, the scraper is sleeved on the outer peripheral side of the electric heating ring.

3. The hole-opening device of the pearl cotton board according to claim 1, characterized in that: The rotating assembly comprises: Auxiliary box, the auxiliary box is attached to the driving member, and the auxiliary box is used to support the driving member: A first motor is disposed in the auxiliary box, the first motor is drivingly connected to the driving member, and the first motor drives the driving member to rotate so as to drive the plurality of scrapers to rotate.

4. The perforating device of the pearl cotton board as claimed in claim 3, characterized in that: The driving member comprises: An electric push rod is drivingly connected to the first motor, and a connecting plate is drivingly connected to the electric push rod, and the plurality of scrapers are arranged on a side of the connecting plate facing the electric heating ring, so that when the electric push rod drives the connecting plate to move toward the electric heating ring, the plurality of scrapers are driven to move toward the electric heating ring.

5. The hole-opening device for pearl cotton board as claimed in claim 4, characterized in that: The connection plate is passed through the blanking hole, and the connection plate is slidably connected in the blanking hole, so that when the connection plate moves toward the electric heating ring, the scraper is driven to approach the electric heating ring.

6. The hole-opening device for pearl cotton board as claimed in claim 5, characterized in that: A second motor is disposed on the lower surface of the frame, and the second motor is driven and connected to a connecting shaft. The rotating assembly is disposed on the outer peripheral side of the connecting shaft so as to drive the rotating assembly to rotate when the connecting shaft rotates, thereby adjusting the position of the scraper.

7. The hole-opening device for pearl cotton board according to claim 6, characterized in that: A collecting box for collecting waste is arranged on the lower side of the frame, and the collecting box is located on a side of the drop hole away from the connecting shaft.

8. The hole-opening device for pearl cotton board as claimed in claim 7, characterized in that: A guide assembly for guiding the sliding direction of the waste is arranged on the outer peripheral side of the connecting shaft, and the connecting shaft drives the guide assembly and the rotating assembly to rotate so that one of the guide assembly and the rotating assembly is aligned with the drop hole.

9. The perforating device for pearl cotton board as claimed in claim 8, characterized in that: The guide assembly includes a support plate, a telescopic member and an inclined block, the support plate is arranged on the connecting shaft, the telescopic member is arranged on the support plate, and the telescopic member extends toward the frame, the inclined block is arranged at one end of the telescopic member extending toward the frame, so that the telescopic member drives the inclined block to move toward or away from the frame, and the inclined block is provided with an inclined surface, which is used to guide the waste to slide toward the collection box.

10. The perforating device for pearl cotton board according to claim 9, characterized in that: The inclined surface is arranged toward a side away from the second motor, and the inclined surface is inclined toward a side away from the frame to guide the waste to slide into the collection box.

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