A pulp molding product ring cutting device

Abstract

The present invention provides a pulp molded product circular cutting device, which belongs to the technical field of pulp molded product production, and includes a base, a cutting assembly, an elastic stretching assembly, a limiting plate, a first drive assembly, and a second drive assembly. A holding seat is fixedly provided on the upper portion of the base, and a top plate is fixedly provided on the upper edge of the base through a plurality of columns. The cutting assembly is arranged above the holding seat, and the first drive assembly is installed on the side wall of the top plate. One end of the elastic stretching assembly is connected to the cutting assembly, and the other end is connected to the first drive assembly, so as to provide elastic tension to the cutting assembly. Compared with the prior art, the embodiment of the present invention can conveniently adjust the rotation trajectory of the cutting assembly, so that effective circular cutting and deburring can be performed on pulp molded products with both square and circular structures, and has the advantages of strong adaptability and good circular cutting effect.

Description

Technical Field

[0001] The invention belongs to the technical field of pulp molded product production, in particular to a pulp molded product ring cutting device. Background Art

[0002] At present, pulp molded products need to go through a trimming process after hot pressing, drying and shaping to remove the rough and irregular edges on the outer edges of the products to achieve exquisite size and appearance requirements.

[0003] In the patent documents with publication numbers CN220882404U and CN218534740U, the removal of burrs on the edges of pulp molded products is achieved by utilizing a drive mechanism to drive a cutter to rotate around the pulp molded product, and the cutter is used to cut off the burrs around the pulp molded product. However, the rotation trajectory of the cutter is only circular, so it can only be adapted to pulp molded products with a circular structure for circular cutting and deburring. When the pulp molded product that needs to be deburred by circular cutting has a square structure, the above-mentioned prior art is obviously not applicable. Therefore, the existing equipment for circular cutting and deburring of pulp molded products has low adaptability and is in urgent need of improvement. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide a pulp molding product ring cutting device.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A pulp molding product ring cutting device comprises a base, a cutting component, an elastic stretching component, a limiting plate, a first driving component and a second driving component.

[0007] A holding seat is fixedly arranged on the upper part of the base, and a top plate is fixedly arranged on the upper edge of the base through a plurality of columns.

[0008] The cutting assembly is arranged above the containing seat, the first driving assembly is installed on the side wall of the top plate, one end of the elastic stretching assembly is connected to the cutting assembly, and the other end is connected to the first driving assembly, for providing elastic tension to the cutting assembly.

[0009] The limiting plates are provided with four groups, and the four groups of limiting plates are arranged at the bottom of the top plate, and the four groups of limiting plates can form a circular structure or a square structure.

[0010] The second driving assembly is installed on the side wall of the top plate, and is used to drive the four groups of the limiting plates to switch between the circular structure and the square structure.

[0011] When the pulp molded product to be cut in an annular shape is a circular component, the second driving assembly drives the four groups of the limiting plates to form a circular structure, so as to limit the rotation trajectory of the cutting assembly to a circle, thereby performing an annular cutting on the pulp molded product of the circular component.

[0012] When the pulp molded product to be circularly cut is a square component, the second driving assembly drives the four groups of the limiting plates to form a square structure to limit the rotation trajectory of the cutting assembly to a square, thereby circularly cutting the pulp molded product of the square component.

[0013] As a further improvement of the present invention: the first driving assembly includes a rotating shaft, a motor and a pull rod,

[0014] The rotating shaft is rotatably mounted on the bottom wall of the top plate, the motor is fixedly mounted on the upper part of the top plate, and is used to drive the rotating shaft to rotate, the pull rod is fixedly mounted on the side wall of the rotating shaft and is perpendicular to the rotating shaft, the cutting assembly includes a supporting column and a cutter, the supporting column is vertically distributed, the supporting column is arranged on the side of the rotating shaft, and the cutter is mounted on the lower end of the supporting column.

[0015] The elastic stretching assembly includes an extension rod, a stretching sleeve and a second elastic member.

[0016] One end of the stretching sleeve is fixedly connected to the supporting column, and the other end is sleeved on the outside of the pull rod and telescopically cooperates with the pull rod. The extension rod is fixedly arranged on the side wall of the stretching sleeve. One end of the second elastic member is connected to one end of the pull rod located inside the stretching sleeve, and the other end is connected to the inner wall of the stretching sleeve, which is used to provide elastic pulling force to the stretching sleeve, so that the extension rod is in close contact with the four groups of limit plates.

[0017] As a further improvement of the present invention: a rotating sleeve is rotatably sleeved on the outside of the extension rod.

[0018] As a further improvement of the present invention: a rotating wheel is fixedly arranged outside the rotating shaft, a plurality of first oblique tooth pieces are hingedly arranged on the circumferential side wall of the rotating wheel, and the plurality of first oblique tooth pieces are distributed at intervals along the circumferential side wall of the rotating wheel.

[0019] One side of each group of the first oblique tooth plates is connected to the rotating wheel through a group of third elastic members, and the third elastic members are used to provide elastic support for the first oblique tooth plates.

[0020] The output end of the motor is provided with a driving gear, and the driving gear can be unidirectionally meshed with a plurality of the first helical gear plates.

[0021] As a further improvement of the present invention: a socket is provided at the bottom of the support column, a lifting rod is movably inserted into the socket, and the lower end of the lifting rod extends below the support column and is fixedly connected to the cutter.

[0022] A first elastic member is also disposed inside the insertion hole, and the first elastic member is used to provide elastic support for the lifting rod.

[0023] As a further improvement of the present invention: the lifting rod and the insertion hole are both square structures.

[0024] As a further improvement scheme of the present invention: the four groups of limiting plates have the same structure, all of which are plates with a flat structure on one side and an arc structure on the other side. The four groups of limiting plates are rotatably arranged at the bottom of the top plate, and the second driving assembly is used to drive the four groups of limiting plates to rotate 180° respectively.

[0025] As a further improvement of the present invention: the second driving assembly includes a rotating rod, a transmission gear, a ring plate, a second helical tooth plate, a fourth elastic member and an outer gear ring,

[0026] The rotating rods are provided with four groups, one end of each of the rotating rods is fixedly connected to a group of the limiting plates, and the other end is rotatably connected to the bottom of the top plate. A group of the transmission gears is fixedly arranged on the outside of each group of the rotating rods, the ring plate is rotatably mounted on the bottom of the top plate, the outer gear ring is fixedly arranged on the outer wall of the ring plate and is synchronously meshed with the four groups of transmission gears.

[0027] The second beveled tooth plates are provided with a plurality of groups, and the plurality of second beveled tooth plates are hingedly arranged on the inner wall of the ring plate and distributed along the inner wall of the ring plate at intervals. One side of each group of the second beveled tooth plates is connected to the inner wall of the ring plate through a group of the fourth elastic members, and the fourth elastic members are used to provide elastic support for the second beveled tooth plates. The driving gear is arranged on the inner side of the ring plate and can be unidirectionally meshed with the plurality of the second beveled tooth plates.

[0028] As a further improvement of the present invention: the first elastic member, the second elastic member, the third elastic member and the fourth elastic member are springs or metal springs.

[0029] As a further improvement of the present invention: the cutting assembly and the elastic stretching assembly are each provided with two groups, and the two groups of the cutting assembly and the two groups of the elastic stretching assembly are symmetrically distributed about the rotation axis.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] In the embodiment of the present invention, when it is necessary to perform a circular cutting process on a pulp molded product to remove burrs and protrusions around the pulp molded product, the pulp molded product to be circularly cut can be placed on the upper part of the holding seat. At this time, if the pulp molded product to be circularly cut is a circular component, the second driving component is used to drive the four groups of limiting plates to form a circular structure. After the four groups of limiting plates form a circular structure, the first driving component drives the cutting component to rotate through the elastic stretching component. The four groups of limiting plates forming a circular structure can limit the rotation trajectory of the cutting component to a circle, so that the cutting component can rotate around the periphery of the pulp molded product of the circular component, and then the pulp molded product of the circular component can be circularly cut to remove burrs. If the pulp molded product to be circularly cut is a circular component, the first driving component drives the four groups of limiting plates to form a circular structure. If the pulp molded product is a square component, the second driving component is used to drive the four groups of limiting plates to form a square structure. When the four groups of limiting plates form the square structure, the first driving component drives the cutting component to rotate through the elastic stretching component. The four groups of limiting plates forming the square structure can limit the rotation trajectory of the cutting component to a square, so that the cutting component can rotate around the periphery of the pulp molded product of the square component, and then perform circular cutting and deburring treatment on the pulp molded product of the square component. Compared with the prior art, the rotation trajectory of the cutting component can be conveniently adjusted, so that effective circular cutting and deburring can be performed on pulp molded products with square structures and circular structures, and it has the advantages of strong adaptability and good circular cutting effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A schematic diagram of the structure of a pulp molding product ring cutting equipment Figure 1 ;

[0033] Figure 2 A schematic diagram of the structure of a pulp molding product ring cutting equipment Figure 2 ;

[0034] Figure 3 It is a schematic diagram of the distribution of four groups of limit plates in a pulp molding product ring cutting equipment;

[0035] Figure 4 for Figure 1 A magnified schematic diagram of the middle A area;

[0036] Figure 5 for Figure 2 A magnified schematic diagram of the middle B area;

[0037] Figure 6 for Figure 3 Enlarged schematic diagram of the middle C area;

[0038] Figure 7 for Figure 3 The enlarged schematic diagram of the D area in the middle;

[0039] In the figure: 10-base, 101-holding seat, 102-column, 103-top plate, 20-cutting assembly, 201-support column, 202-lifting rod, 203-first elastic member, 204-cutter, 30-elastic stretching assembly, 301-extension rod, 302-stretching sleeve, 303-second elastic member, 304-rotating sleeve, 40-limiting plate, 50-first driving assembly, 501-rotating wheel, 502-rotating shaft, 503-motor, 504-driving gear, 505-pull rod, 506-first oblique tooth piece, 507-third elastic member, 60-second driving assembly, 601-rotating rod, 602-transmission gear, 603-ring plate, 604-second oblique tooth piece, 605-fourth elastic member, 606-outer gear ring. DETAILED DESCRIPTION

[0040] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0041] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0042] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] See also Figure 1 , Figure 2 as well as Figure 3The present embodiment provides a pulp molded product circular cutting device, including a base 10, a cutting assembly 20, an elastic stretching assembly 30, a limiting block 40, a first driving assembly 50 and a second driving assembly 60. A holding seat 101 is fixedly provided on the upper portion of the base 10, and a top plate 103 is fixedly provided on the upper edge of the base 10 through a plurality of columns 102. The cutting assembly 20 is arranged above the holding seat 101, and the first driving assembly 50 is installed on the side wall of the top plate 103. One end of the elastic stretching assembly 30 is connected to the cutting assembly 20, and the other end is connected to the first driving assembly 50, so as to provide elastic tension to the cutting assembly 20. The limiting block 40 is provided with four groups, and the four groups of limiting blocks 40 are arranged on the top plate 103. At the bottom, the four groups of the limiting plates 40 can form a circular structure or a square structure. The second driving assembly 60 is installed on the side wall of the top plate 103, and is used to drive the four groups of the limiting plates 40 to switch between the circular structure and the square structure. When the pulp molded product that needs to be cut is a circular component, the second driving assembly 60 drives the four groups of the limiting plates 40 to form a circular structure to limit the rotation trajectory of the cutting assembly 20 to a circle, and then performs ring cutting on the pulp molded product of the circular component. When the pulp molded product that needs to be cut is a square component, the second driving assembly 60 drives the four groups of the limiting plates 40 to form a square structure to limit the rotation trajectory of the cutting assembly 20 to a square, and then performs ring cutting on the pulp molded product of the square component.

[0045] When it is necessary to perform circular cutting on the pulp molded product to remove burrs and protrusions around the pulp molded product, the pulp molded product to be circular cut can be placed on the upper part of the holding seat 101. At this time, if the pulp molded product to be circular cut is a circular component, the second driving component 60 is used to drive the four groups of limiting plates 40 to form a circular structure. When the four groups of limiting plates 40 form a circular structure, the first driving component 50 drives the cutting component 20 to rotate through the elastic stretching component 30. The four groups of limiting plates 40 forming a circular structure can limit the rotation trajectory of the cutting component 20 to a circle, so that the cutting component 20 can surround the pulp mold of the circular component. The four groups of limiting plates 40 are used to form a square structure. After the four groups of limiting plates 40 form a square structure, the first driving component 50 drives the cutting component 20 to rotate through the elastic stretching component 30. The four groups of limiting plates 40 forming a square structure can limit the rotation trajectory of the cutting component 20 to a square, so that the cutting component 20 can rotate around the periphery of the pulp molded product of the square component, and then the pulp molded product of the square component can be cut and deburred.

[0046] See also Figure 1, Figure 2 , Figure 4 as well as Figure 5 In one embodiment, the first driving assembly 50 includes a rotating shaft 502, a motor 503 and a pull rod 505. The rotating shaft 502 is rotatably mounted on the bottom wall of the top plate 103. The motor 503 is fixedly mounted on the upper part of the top plate 103 to drive the rotating shaft 502 to rotate. The pull rod 505 is fixedly mounted on the side wall of the rotating shaft 502 and is perpendicular to the rotating shaft 502. The cutting assembly 20 includes a supporting column 201 and a cutter 204. The supporting column 201 is vertically distributed. The supporting column 201 is arranged on the side of the rotating shaft 502. The cutter 204 is mounted on the lower end of the supporting column 201. The elastic stretching assembly 30 includes an extension rod 301, a stretching sleeve 302 and a second elastic member 303. One end of the stretching sleeve 302 is fixedly connected to the support column 201, and the other end is sleeved on the outside of the pull rod 505 and telescopically cooperates with the pull rod 505. The extension rod 301 is fixedly arranged on the side wall of the stretching sleeve 302. One end of the second elastic member 303 is connected to one end of the pull rod 505 located inside the stretching sleeve 302, and the other end is connected to the inner wall of the stretching sleeve 302, which is used to provide elastic tension to the stretching sleeve 302, so that the extension rod 301 is in close contact with the four groups of limiting plates 40.

[0047] When the pulp molded product to be ring-cut is a circular component, the second driving assembly 60 is used to drive the four groups of limiting plates 40 to form a circular structure. After the four groups of limiting plates 40 form a circular structure, the elastic tension of the second elastic member 303 on the stretching sleeve 302 enables the extension rod 301 to be tightly attached to the outer wall of the circular structure formed by the four groups of limiting plates 40. Then, the motor 503 is used to drive the rotating shaft 502 to rotate, and then the pull rod 505 is driven to rotate. When the pull rod 505 rotates, it drives the support column 201 and the cutting The cutter 204 rotates, and at this time, the four groups of limiting blocks 40 limit the rotation trajectory of the cutter 204 to a circle, thereby performing a circular cutting and deburring process on the pulp molded product whose upper part of the holding seat 101 is a circular component; when the pulp molded product to be circularly cut is a square component, the second driving assembly 60 is used to drive the four groups of limiting blocks 40 to form a square structure. When the four groups of limiting blocks 40 form a square structure, the elastic tension of the second elastic member 303 on the stretching sleeve 302 enables the extension rod 301 to be in contact with the square structure formed by the four groups of limiting blocks 40. The outer wall of the structure is tightly attached, and then the motor 503 is used to drive the rotating shaft 502 to rotate, and then the pull rod 505 is driven to rotate. When the pull rod 505 rotates, the supporting column 201 and the cutter 204 are driven to rotate through the stretching sleeve 302. At this time, the four groups of limiting plates 40 limit the rotation trajectory of the cutter 204 to a square, and then the pulp molded product with a square component on the upper part of the holding seat 101 is subjected to circular cutting and deburring. After the four groups of limiting plates 40 are surrounded by a square structure, the rotating shaft 502 can drive the extension rod 301 to slide against the outer wall of the square structure. When When the extension rod 301 slides along one of the outer walls of the square structure, the stretching sleeve 302 adaptively expands and contracts compared to the pull rod 505 under the pull of the second elastic member 303, and the cutter 204 translates along a side wall of the pulp molded product to cut off the burrs on the side wall of the pulp molded product. When the extension rod 301 slides from one outer wall of the square structure to another adjacent outer wall, the cutter 204 can transition from one side wall of the pulp molded product to another adjacent side wall, thereby cutting off the burrs on the other side wall of the pulp molded product.

[0048] See also Figure 4 In one embodiment, a rotating sleeve 304 is rotatably sleeved on the outside of the extension rod 301. Through the setting of the rotating sleeve 304, the rotating sleeve 304 on the outside of the extension rod 301 can be tightly attached to the outer wall of the circular structure or square structure surrounded by the four groups of limiting plates 40 under the pulling action of the second elastic member 303, so that when the extension rod 301 slides along the outer wall of the circular structure or square structure surrounded by the four groups of limiting plates 40, the rotating sleeve 304 can rotate adaptively, thereby reducing the friction between the extension rod 301 and the outer wall of the circular structure or square structure surrounded by the four groups of limiting plates 40, and improving the stability of the cutter 204 during movement.

[0049] See also Figure 2 , Figure 3 as well as Figure 7 In one embodiment, a rotating wheel 501 is fixedly provided on the outside of the rotating shaft 502, and a plurality of first oblique tooth pieces 506 are hingedly provided on the circumferential side wall of the rotating wheel 501, and the plurality of first oblique tooth pieces 506 are distributed at intervals along the circumferential side wall of the rotating wheel 501, and one side of each group of the first oblique tooth pieces 506 is connected to the rotating wheel 501 through a group of third elastic members 507, and the third elastic members 507 are used to provide elastic support for the first oblique tooth pieces 506, and a driving gear 504 is provided at the output end of the motor 503, and the driving gear 504 can be unidirectionally meshed with the plurality of the first oblique tooth pieces 506.

[0050] When the pulp molded product to be ring-cut is placed on the upper part of the holding seat 101, the motor 503 drives the driving gear 504 to rotate in the forward direction, and then the driving gear 504 and the first bevel gear pieces 506 are meshed to drive the rotating shaft 502 to rotate. When the rotating shaft 502 rotates, the pull rod 505 and the stretching sleeve 302 drive the supporting column 201 to rotate around the rotating shaft 502, thereby providing rotational power to the cutter 204, and cooperating with the deformation of the four sets of limit plates 40 to achieve the ring cutting and deburring processing of the pulp molded product of the circular component or the square component.

[0051] See also Figure 5 In one embodiment, a socket is provided at the bottom of the support column 201, and a lifting rod 202 is movably inserted into the socket. The lower end of the lifting rod 202 extends to the bottom of the support column 201 and is fixedly connected to the cutter 204. A first elastic member 203 is also provided inside the socket, and the first elastic member 203 is used to provide elastic support for the lifting rod 202.

[0052] When placing the pulp molded product to be ring-cut on the upper part of the receiving seat 101, the staff can lift the lifting rod 202 to move the lifting rod 202 toward the inside of the socket, thereby driving the first elastic member 203 to be compressed, and then place the pulp molded product to be ring-cut on the upper part of the receiving seat 101, and then release the lifting rod 202. Under the support of the first elastic member 203, the lifting rod 202 can be driven downward, thereby driving the cutter 204 to move downward, and the cutter 204 acts on the edge of the pulp molded product.

[0053] See also Figure 5In one embodiment, the lifting rod 202 is a square structure, and correspondingly, the socket is also a square structure. Through the telescopic cooperation between the lifting rod 202 and the socket of the square structure, during the rotation of the supporting column 201 around the rotating shaft 502, the lifting rod 202 can be effectively prevented from rotating relative to the supporting column 201, thereby preventing the cutter 204 from rotating relative to the pulp molded product, thereby improving the cutting effect of the cutter 204 on the burrs of the pulp molded product.

[0054] See also Figure 3 In one embodiment, the four groups of limiting plates 40 have the same structure, and are plates with a planar structure on one side and an arc-shaped structure on the other side. The four groups of limiting plates 40 are rotatably arranged at the bottom of the top plate 103, and the second driving assembly 60 is used to drive the four groups of limiting plates 40 to rotate 180° respectively.

[0055] When the pulp molding product to be cut is a circular component, the four groups of limiting blocks 40 have one side of an arc structure facing outward and one side of a plane structure facing inward, thereby forming a circular structure (such as Figure 3 As shown), the elastic pulling force provided by the second elastic member 303 to the stretching sleeve 302 makes the extension rod 301 stick to the outer wall of the circular structure, so that when the motor 503 drives the driving gear 504 to rotate in the forward direction and then drives the cutter 204 to rotate through the rotating shaft 502, the extension rod 301 slides along the outer wall of the circular structure, thereby limiting the rotation trajectory of the cutter 204 to a circle, and then performing a circular cutting and deburring process on the pulp molded product of the circular component; when the pulp molded product to be circularly cut is a circular component, the second driving assembly 60 drives the four groups of limiting plates 40 to rotate 180° respectively, so that the four groups of limiting plates 40 with one side of the arc structure face the inner side, and the one side of the planar structure faces the outer side, thereby forming a square structure, and the second elastic member The elastic pulling force provided by the stretching sleeve 302 by 303 makes the extension rod 301 stick to the outer wall of the square structure. In this way, when the motor 503 drives the driving gear 504 to rotate in the forward direction and then drives the cutter 204 to rotate through the rotating shaft 502, the extension rod 301 slides along the outer wall of the square structure, thereby limiting the rotation trajectory of the cutter 204 to a square, and then performing circular cutting and deburring processing on the pulp molded product of the square component; when it is necessary to perform circular cutting on the pulp molded product of the circular component again, the second driving component 60 can be used to drive the four groups of limiting plates 40 to rotate 180° respectively, so that the side of the four groups of limiting plates 40 with an arc structure is facing the outer direction again, and the side with a planar structure is facing the inner direction again, so as to form a circular structure again.

[0056] See also Figure 3 , Figure 4 as well as Figure 6In one embodiment, the second driving assembly 60 includes a rotating rod 601, a transmission gear 602, a ring plate 603, a second oblique tooth plate 604, a fourth elastic member 605 and an outer gear ring 606. The rotating rod 601 is provided with four groups, one end of the four groups of rotating rods 601 is fixedly connected to a group of the limiting plates 40 respectively, and the other end is rotatably connected to the bottom of the top plate 103. A group of the transmission gear 602 is fixedly arranged on the outside of each group of the rotating rods 601. The ring plate 603 is rotatably mounted on the bottom of the top plate 103. The outer gear ring 606 is fixedly arranged on the ring plate 6 03 outer wall and synchronously meshed with four groups of transmission gears 602, a plurality of second bevel gear pieces 604 are provided, a plurality of second bevel gear pieces 604 are hingedly arranged on the inner wall of the ring plate 603 and spaced apart along the inner wall of the ring plate 603, one side of each group of second bevel gear pieces 604 is connected to the inner wall of the ring plate 603 through a group of fourth elastic members 605, the fourth elastic members 605 are used to provide elastic support for the second bevel gear pieces 604, the driving gear 504 is arranged on the inner side of the ring plate 603 and can be unidirectionally meshed with a plurality of second bevel gear pieces 604.

[0057] When it is necessary to transform the circular structure surrounded by the four groups of limiting plates 40 into a square structure, or to transform the square structure surrounded by the four groups of limiting plates 40 into a circular structure, the motor 503 can be used to drive the driving gear 504 to rotate in the opposite direction in advance, and the meshing action of the driving gear 504 and a plurality of second beveled teeth 604 can drive the ring plate 603 to rotate. When the ring plate 603 rotates, the meshing action of the outer gear ring 606 and the four groups of transmission gears 602 drives the four groups of limiting plates 40 to rotate. When the four groups of limiting plates 40 rotate 180°, the shape conversion can be completed. Then the motor 503 drives the driving gear 504 to rotate in the forward direction, and the meshing action of the driving gear 504 and a plurality of first beveled teeth 506 drives the rotating shaft 502, the pull rod 505, the stretching sleeve 302, the support column 201, the lifting rod 202 and the cutter 204 to rotate, so as to perform circular cutting and deburring on the pulp molded product.

[0058] In one embodiment, the first elastic member 203, the second elastic member 303, the third elastic member 507 and the fourth elastic member 605 may be springs or metal springs, which is not limited here.

[0059] See also Figure 1 as well as Figure 2In one embodiment, the cutting assembly 20 and the elastic stretching assembly 30 are each provided with two groups, and the two groups of the cutting assembly 20 and the two groups of the elastic stretching assembly 30 are symmetrically distributed about the rotating shaft 502. When the pulp molded product is subjected to circular cutting and deburring, the two groups of the cutting assembly 20 and the two groups of the elastic stretching assembly 30 are provided, so that the motor 503 only needs to drive the rotating shaft 502 to rotate 180° to complete the entire circular cutting operation, thereby improving the circular cutting and deburring efficiency of the pulp molded product.

[0060] In the embodiment of the present invention, when it is necessary to perform a ring cutting process on a pulp molded product to remove burrs and protrusions around the pulp molded product, the pulp molded product to be ring cut can be placed on the upper part of the holding seat 101. At this time, if the pulp molded product to be ring cut is a circular component, the second driving component 60 is used to drive the four groups of limiting plates 40 to form a circular structure. After the four groups of limiting plates 40 form a circular structure, the first driving component 50 drives the cutting component 20 to rotate through the elastic stretching component 30. The four groups of limiting plates 40 forming a circular structure can limit the rotation trajectory of the cutting component 20 to a circle, so that the cutting component 20 can rotate around the periphery of the pulp molded product of the circular component, and then the pulp molded product of the circular component can be ring cut to remove burrs. If the pulp molded product to be ring cut is a circular component, the second driving component 60 is used to drive the four groups of limiting plates 40 to form a circular structure. If the pulp molded product to be cut is a square component, the second driving component 60 is used to drive the four groups of limiting plates 40 to form a square structure. When the four groups of limiting plates 40 form a square structure, the first driving component 50 drives the cutting component 20 to rotate through the elastic stretching component 30. The four groups of limiting plates 40 forming a square structure can limit the rotation trajectory of the cutting component 20 to a square, so that the cutting component 20 can rotate around the periphery of the pulp molded product of the square component, and then perform a circular cutting and deburring process on the pulp molded product of the square component. Compared with the prior art, the rotation trajectory of the cutting component 20 can be conveniently adjusted, so as to effectively perform a circular cutting and deburring process on the pulp molded products with circular structures or square structures, and has the advantages of strong adaptability and good circular cutting effect.

[0061] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. A pulp molding product ring cutting device, characterized in that: It includes a base, a cutting component, an elastic stretching component, a limiting plate, a first driving component and a second driving component. A holding seat is fixedly arranged on the upper part of the base, and a top plate is fixedly arranged on the upper edge of the base through a plurality of columns. The cutting assembly is arranged above the containing seat, the first driving assembly is installed on the side wall of the top plate, one end of the elastic stretching assembly is connected to the cutting assembly, and the other end is connected to the first driving assembly, for providing elastic tension to the cutting assembly. The limiting plates are provided with four groups, and the four groups of limiting plates are arranged at the bottom of the top plate, and the four groups of limiting plates can form a circular structure or a square structure. The second driving assembly is installed on the side wall of the top plate, and is used to drive the four groups of the limiting plates to switch between the circular structure and the square structure. When the pulp molded product to be cut in an annular shape is a circular component, the second driving assembly drives the four groups of the limiting plates to form a circular structure, so as to limit the rotation trajectory of the cutting assembly to a circle, thereby performing an annular cutting on the pulp molded product of the circular component. When the pulp molded product to be circularly cut is a square component, the second driving assembly drives the four groups of the limiting plates to form a square structure to limit the rotation trajectory of the cutting assembly to a square, thereby circularly cutting the pulp molded product of the square component.

2. A pulp molding product ring cutting device according to claim 1, characterized in that: The first driving assembly includes a rotating shaft, a motor and a pull rod. The rotating shaft is rotatably mounted on the bottom wall of the top plate, the motor is fixedly mounted on the upper part of the top plate, and is used to drive the rotating shaft to rotate, the pull rod is fixedly mounted on the side wall of the rotating shaft and is perpendicular to the rotating shaft, the cutting assembly includes a supporting column and a cutter, the supporting column is vertically distributed, the supporting column is arranged on the side of the rotating shaft, and the cutter is mounted on the lower end of the supporting column. The elastic stretching assembly includes an extension rod, a stretching sleeve and a second elastic member. One end of the stretching sleeve is fixedly connected to the supporting column, and the other end is sleeved on the outside of the pull rod and telescopically cooperates with the pull rod. The extension rod is fixedly arranged on the side wall of the stretching sleeve. One end of the second elastic member is connected to one end of the pull rod located inside the stretching sleeve, and the other end is connected to the inner wall of the stretching sleeve, which is used to provide elastic pulling force to the stretching sleeve, so that the extension rod is in close contact with the four groups of limit plates.

3. A pulp molding product ring cutting device according to claim 2, characterized in that: A rotating sleeve is rotatably sleeved on the exterior of the extension rod.

4. A pulp molding product ring cutting device according to claim 2, characterized in that: A rotating wheel is fixedly arranged outside the rotating shaft, and a plurality of first oblique tooth pieces are hingedly arranged on the circumferential side wall of the rotating wheel, and the plurality of first oblique tooth pieces are distributed at intervals along the circumferential side wall of the rotating wheel. One side of each group of the first oblique tooth plates is connected to the rotating wheel through a group of third elastic members, and the third elastic members are used to provide elastic support for the first oblique tooth plates. The output end of the motor is provided with a driving gear, and the driving gear can be unidirectionally meshed with a plurality of the first helical gear plates.

5. A pulp molding product ring cutting device according to claim 4, characterized in that: The bottom of the support column is provided with a socket, and a lifting rod is movably inserted into the socket. The lower end of the lifting rod extends below the support column and is fixedly connected to the cutter. A first elastic member is also disposed inside the insertion hole, and the first elastic member is used to provide elastic support for the lifting rod.

6. A pulp molding product ring cutting device according to claim 5, characterized in that: The lifting rod and the insertion hole are both square structures.

7. The pulp molding product ring cutting device according to claim 5, characterized in that: The four groups of limiting plates have the same structure, all of which are plates with a flat structure on one side and an arc structure on the other side. The four groups of limiting plates are rotatably arranged at the bottom of the top plate, and the second driving component is used to drive the four groups of limiting plates to rotate 180° respectively.

8. The pulp molding product ring cutting device according to claim 7, characterized in that: The second driving assembly includes a rotating rod, a transmission gear, a ring plate, a second helical tooth plate, a fourth elastic member and an outer gear ring. The rotating rods are provided with four groups, one end of each of the rotating rods is fixedly connected to a group of the limiting plates, and the other end is rotatably connected to the bottom of the top plate. A group of the transmission gears is fixedly arranged on the outside of each group of the rotating rods, the ring plate is rotatably mounted on the bottom of the top plate, the outer gear ring is fixedly arranged on the outer wall of the ring plate and is synchronously meshed with the four groups of transmission gears. The second beveled tooth plates are provided with a plurality of groups, and the plurality of second beveled tooth plates are hingedly arranged on the inner wall of the ring plate and distributed along the inner wall of the ring plate at intervals. One side of each group of the second beveled tooth plates is connected to the inner wall of the ring plate through a group of the fourth elastic members, and the fourth elastic members are used to provide elastic support for the second beveled tooth plates. The driving gear is arranged on the inner side of the ring plate and can be unidirectionally meshed with the plurality of the second beveled tooth plates.

9. A pulp molding product ring cutting device according to claim 8, characterized in that: The first elastic member, the second elastic member, the third elastic member and the fourth elastic member are springs or metal springs.

10. The pulp molding product ring cutting device according to claim 2, characterized in that: The cutting components and the elastic stretching components are each provided with two groups, and the two groups of the cutting components and the two groups of the elastic stretching components are symmetrically distributed about the rotating axis.

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