Disposable lunch box trimming device

Abstract

The present invention relates to the technical field of edge trimming devices, and discloses a disposable lunch box edge trimming device, including a limiting adsorption mechanism and an elastic pressure cutting mechanism. The disposable lunch box edge trimming device uses the adsorption capacity of gas to enable the box cutting to complete the installation and positioning operation, and can perform a resistance-type limiting effect on the corner structure of the lunch box, thereby preventing the occurrence of excessive cutting by the cutting head. In addition, the device can provide elastic buffering pressure to the cutting head, so that the cutting head can adapt to excessive cutting of special-shaped corners, so as to increase its cutting range for corners of different shapes, and due to the existence of elastic pressure, it can effectively prevent the occurrence of insufficient cutting distance of the cutting head.

Description

Technical Field

[0001] The invention relates to the technical field of edge trimming devices, in particular to an edge trimming device for a disposable lunch box. Background Art

[0002] Disposable fast food boxes have shifted from foam boxes to environmentally friendly boxes. The original foam boxes were eliminated because they were not resistant to high temperatures and the production process caused damage to the environment. They were replaced by plastic boxes, paper boxes, wooden boxes, degradable boxes, etc. Among them, plastic has the characteristics of low toxicity, high melting point, strong plasticity, simple production and relatively low cost, so it has become the mainstream material for making disposable fast food boxes. At present, most disposable lunch boxes (round lunch boxes) are not trimmed during processing, but are directly put into use after processing. Therefore, the rough edges of disposable lunch boxes often cut the user's fingers, thereby reducing the safety of disposable lunch boxes.

[0003] To this end, the Chinese patent with publication number "CN113927801B" announced "Disposable lunch box trimming device and disposable lunch box processing method", whose main structure includes a processing table, an intermittent mechanism, a second connecting member, a vertical rod, a rubber suction cup, a mounting plate, a cylinder, a first mounting disc, a driving mechanism and a trimming mechanism. The above device can adjust the distance between the corresponding arc cutters according to the actual size of the disposable lunch box to be trimmed, thereby improving the practicality of the trimming device.

[0004] When the disposable lunch box trimming device is trimming, since the distance between the arc cutter and the disposable lunch box is fixed, the disposable lunch box trimming device can only trim the lunch box with rounded corners, and it requires the distance between the lunch box and the arc cutter to be maintained at the corresponding cutting position, which requires accurate positioning, otherwise it will cause inaccurate trimming area, thereby affecting the quality of the lunch box after trimming. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a disposable lunch box edge cutting device, which utilizes the adsorption capacity of gas to enable the box cutter to complete the installation and positioning operations, and can perform a resistance-type limiting effect on the corner structure of the lunch box, thereby preventing the cutting head from over-cutting. In addition, the device can provide elastic buffering pressure to the cutting head, so that the cutting head can adapt to the over-cutting of special-shaped corners, so as to increase its cutting range for corners of different shapes, and due to the presence of elastic pressure, it can effectively prevent the cutting head from cutting insufficiently, thereby solving the above-mentioned technical problems.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a disposable lunch box trimming device, comprising a top fixed base plate, a driving motor fixedly mounted on the bottom of the top fixed base plate through a motor fixing seat, a rotor fixing plate fixedly mounted on the rotor end of the driving motor, and a fixed connecting sleeve fixedly mounted on the bottom of the top fixed base plate and located on one side of the driving motor, and also comprising a limited adsorption mechanism, the interior of which is provided with a suction cup shell capable of penetrating into the interior of the lunch box and utilizing gas suction to fix the lunch box by adsorption, a longitudinal hollow shell located at the top of the suction cup shell and capable of rotating with the rotor of the driving motor and driving the suction cup shell to rotate, and a limited cutting plate capable of axial displacement along the longitudinal hollow shell and capable of contacting the open end of the lunch box; and an elastic pressure cutting mechanism, the interior of which is provided with a cutting head capable of contacting the circumferential surface of the limited cutting plate and capable of cutting the material at the corners of the lunch box, a No. 2 coil spring capable of exerting elastic pressure on the cutting head toward the limited cutting plate, and a transverse threaded rod capable of changing the elastic strength of the No. 2 coil spring.

[0007] Preferably, the limiting adsorption mechanism comprises a longitudinal hollow shell and a limiting cutting plate, the top of the longitudinal hollow shell is provided with a No. 1 fixing plate which is an integral structure with the No. 1 longitudinal component and fixedly connected to the bottom end of the rotor fixing plate, the interior of the longitudinal hollow shell is provided with a No. 1 longitudinal component movable cavity, the circumferential surface of the longitudinal hollow shell is provided with a plurality of movable guide grooves which connect the external space and the circumferential surface of the No. 1 longitudinal component movable cavity, the longitudinal hollow shell is provided with an inner limiting movable plate which can move axially along the No. 1 longitudinal component movable cavity, located inside the No. 1 longitudinal component movable cavity, a plurality of limiting slide bars which penetrate the movable guide groove and can move axially along the movable guide groove are installed on the side of the inner limiting movable plate, the No. 1 longitudinal component movable cavity is provided with a No. 1 coil spring at the bottom of the inner limiting movable plate, the bottom end of the No. 1 coil spring is fixed to the bottom solid end of the No. 1 longitudinal component movable cavity, the top is fixed to the bottom end surface of the inner limiting movable plate, and when the rod body of the limiting slide bar contacts the bottom of the movable guide groove, the No. 1 coil spring is in a tension state.

[0008] Preferably, the bottom of the longitudinal hollow shell is provided with a suction cup shell with an integral structure therewith, the interior of the suction cup shell is provided with a gas adsorption chamber, the upper surface of the suction cup shell is provided with a No. 1 gas flow hole connecting the external space and the gas adsorption chamber, the upper surface of the suction cup shell is provided with an exhaust passage with an integral structure therewith, the interior of the exhaust passage is provided with a No. 2 gas flow hole with an open end at the top and an air valve installed inside, and the bottom connecting the gas adsorption chamber is provided, and the bottom center of the suction cup shell is provided with a plurality of ventilation holes connecting the space below it and the bottom end of the gas adsorption chamber, the bottom surface of the suction cup shell is provided with an annular sealing gasket installed on the periphery of the ventilation hole, the plate body of the limiting cutting plate is provided with a No. 1 component perforation which is placed on the periphery of the exhaust passage, the center of the limiting cutting plate is provided with a sleeve sliding hole which is placed on the periphery of the longitudinal hollow shell, and the limiting cutting plate is fixedly connected to the end of the limiting sliding rod on the inner circumferential surface of the sleeve sliding hole.

[0009] Preferably, the structural shape of the cross section of the movable cavity of the No. 1 longitudinal component is consistent with the structural shape of the cross section of the inner limit movable plate, both are polygonal structures, and the structural dimensions of the cross section of the movable cavity of the No. 1 longitudinal component match the structural dimensions of the cross section of the inner limit movable plate.

[0010] Preferably, the elastic pressure type cutting mechanism comprises a transverse hollow shaft fixedly installed in a fixed connecting sleeve, a transverse component movable cavity is arranged inside the transverse hollow shaft, a No. 2 component through-hole connecting the external space and one end of the transverse component movable cavity is arranged at the end of the transverse hollow shaft pointing to the axial center line of the longitudinal hollow shell, an internal threaded hole connecting the external space and the other end of the transverse component movable cavity is arranged at the other end of the transverse hollow shaft, and a No. 1 movable plate and a No. 2 movable plate which can move axially along the transverse component movable cavity are arranged inside the transverse component movable cavity A movable plate, a No. 2 coil spring in a compressed state is arranged between the No. 1 movable plate and the No. 2 movable plate, a transverse telescopic rod penetrating the No. 2 component through-hole is fixedly installed on the end face of the No. 1 movable plate facing the No. 2 component through-hole, a cutting head is fixedly installed on the end of the transverse telescopic rod, and the No. 2 movable plate is provided with a component mounting groove of an inner concave structure on the end face facing the internal threaded hole, a transverse threaded rod is installed in the internal threaded hole through a threaded structure, one end of the transverse threaded rod is installed in the component mounting groove through a bearing, and a rotating cap is fixedly installed on the other end.

[0011] Preferably, the structural shape of the perforated cross section of the second component is consistent with the structural shape of the cross section of the transverse telescopic rod, both are polygonal structures, and the structural dimensions of the perforated cross section of the second component match the structural dimensions of the cross section of the transverse telescopic rod.

[0012] Preferably, the thread structure includes an internal thread structure arranged in the internal thread hole and an external thread structure arranged on the rod body of the transverse threaded rod, and the internal thread structure matches the external thread structure.

[0013] Preferably, it also includes an adsorption strength control mechanism, which is internally provided with a valve plate capable of producing a flow-blocking effect on the gas entering the No. 1 gas flow hole and a No. 3 coil spring that produces an upward elastic pressure on the valve plate.

[0014] Preferably, the adsorption intensity control mechanism includes a longitudinal hollow column, the bottom of the longitudinal hollow column is provided with a bottom fixed port which is an integral structure with it and fixedly mounted on the upper surface of the suction cup shell, the interior of the longitudinal hollow column is provided with a No. 2 longitudinal component active cavity, the interior of the bottom fixed port is provided with a No. 3 gas flow hole which connects the bottom end of the No. 2 longitudinal component active cavity and the No. 1 gas flow hole, the top of the longitudinal hollow column is provided with a No. 4 gas flow hole which connects the space above it and the top of the No. 2 longitudinal component active cavity, the longitudinal hollow column is provided with a valve plate which can move axially along the No. 2 longitudinal component active cavity inside the No. 2 longitudinal component active cavity, the bottom of the valve plate is installed with a No. 3 coil spring in a compressed state, the circumferential surface of the valve plate is provided with a plurality of concave structures and gas flow grooves for upward and downward flow of gas, the upper end surface of the valve plate is provided with an annular embedding groove, and the valve plate is embedded with an annular sealing ring inside the annular embedding groove.

[0015] Preferably, the depth of the annular embedded groove is smaller than the thickness of the annular sealing ring, the structural radius of the inner circumferential surface of the annular sealing ring is larger than the structural radius of the No. 4 gas flow hole, and the structural radius of the outer circumferential surface of the annular sealing ring is smaller than the distance between the gas flow groove and the axial centerline of the valve plate.

[0016] Compared with the prior art, the present invention provides a disposable lunch box trimming device, which has the following beneficial effects:

[0017] 1. The gas adsorption capacity is used to enable the box cutter to complete the installation and positioning operation, and the corner structure of the lunch box can be limited by a resistance-type effect, thereby preventing the cutting head from overcutting. In addition, the device can provide elastic buffer pressure to the cutting head, so that the cutting head can adapt to the overcutting of special-shaped corners, so as to increase its cutting range for corners of different shapes, and due to the existence of elastic pressure, it can effectively prevent the cutting head from cutting insufficient distance;

[0018] 2. By setting a limited adsorption mechanism, insert the lunch box suction cup shell into the lunch box, and make the annular sealing gasket contact the bottom surface of the lunch box, the limited cutting plate abuts against the end surface of the opening end of the lunch box, and the cutting part of the lunch box needs to coincide with the edge of the limited cutting plate, and then turn on the vacuum pump to extract the gas inside the gas adsorption chamber, forming a gas suction force to tightly adsorb and fix the lunch box, thereby realizing the adsorption fixation of the lunch box. Since the maximum cutting depth of the cutting head can only abut against the side of the limited cutting plate, the cutting limit function of the lunch box is realized;

[0019] 3. By setting up an elastic pressure cutting mechanism, the cutting head will cut the scraps located outside the limited cutting plate. Start the drive motor. At this time, the suction cup shell will drive the lunch box and the limited cutting plate to rotate, and the cutting head can perform relative sliding cutting on the scraps located outside the limited cutting plate. At the same time, the cutting head can move laterally to adapt to different edge structure shapes and increase the cutting range of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a stereogram of the present invention in the positive direction;

[0021] Figure 2 It is a reverse perspective view of the present invention;

[0022] Figure 3 It is a three-dimensional cross-sectional view of the present invention from the right side viewing angle;

[0023] Figure 4 It is a three-dimensional cross-sectional view of the present invention at the main viewing angle;

[0024] Figure 5 It is a three-dimensional cross-sectional view of the limited position adsorption mechanism in the present invention;

[0025] Figure 6 It is a three-dimensional combination diagram of the limiting cutting plate, the limiting sliding rod and the inner limiting moving plate in the present invention;

[0026] Figure 7 It is a three-dimensional cross-sectional view of the elastic pressure type cutting mechanism of the present invention;

[0027] Figure 8 It is a three-dimensional cross-sectional view of the adsorption intensity control mechanism in the present invention.

[0028] Among them: 1. Top fixed substrate; 2. Motor fixing seat; 3. Drive motor; 4. Rotor fixing plate; 5. Limiting adsorption mechanism; 51. Longitudinal hollow shell; 52. Suction cup shell; 53. Gas adsorption chamber; 54. Ventilation hole; 55. Annular sealing gasket; 56. No. 1 longitudinal component movable chamber; 57. No. 1 spiral spring; 58. No. 1 gas flow hole; 59. Moving guide groove; 510. No. 1 fixed plate; 511. Air extraction channel; 512. No. 2 gas flow hole; 513. Limiting cutting plate; 514. No. 1 component perforation; 515. Limiting slide rod; 516. Sliding hole; 517. Inner limit moving plate; 6. Elastic pressure cutting mechanism; 61 , transverse hollow shaft; 62, transverse component movable cavity; 63, internal threaded hole; 64, No. 2 component through-hole; 65, No. 1 movable plate; 66, No. 2 movable plate; 67, component mounting groove; 68, No. 2 spiral spring; 69, transverse threaded rod; 610, rotating cap; 611, transverse telescopic rod; 612, cutting head; 7, fixed connecting sleeve; 8, adsorption strength control mechanism; 81, longitudinal hollow column; 82, No. 2 longitudinal component movable cavity; 83, bottom fixed port; 84, No. 3 gas flow hole; 85, No. 4 gas flow hole; 86, valve plate; 87, No. 3 spiral spring; 88, gas flow groove; 89, annular sealing ring; 810, annular embedded groove. DETAILED DESCRIPTION

[0029] 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.

[0030] See also Figure 1 , Figure 2 , Figure 3 and Figure 4 The disposable lunch box trimming device includes a top fixed base plate 1, a driving motor 3 fixedly mounted on the bottom of the top fixed base plate 1 through a motor fixing seat 2, a rotor fixing plate 4 fixedly mounted on the rotor end of the driving motor 3, and a fixed connecting sleeve 7 fixedly mounted on the bottom of the top fixed base plate 1 and located on one side of the driving motor 3. The top fixed base plate 1 is fixedly mounted on the bottom of a fixed device or a ceiling, and the components below the top fixed base plate 1 are in a suspended state.

[0031] In order to realize the adsorption fixing and cutting limit function of the lunch box, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6, it is necessary to set up a limited suction mechanism 5, which is provided with a suction cup shell 52 that can penetrate into the lunch box and use gas suction to fix the lunch box by suction, a longitudinal hollow shell 51 located on the top of the suction cup shell 52 and can rotate with the rotor of the driving motor 3 and drive the suction cup shell 52 to rotate, and a limited cutting plate 513 that can be axially displaced along the longitudinal hollow shell 51 and can resist the open end of the lunch box. First, use a vacuum pump to connect the vacuum pipe of the vacuum pump with the valve core in the No. 2 gas flow hole 512, and then insert the lunch box suction cup shell 52 into the lunch box. Inside, the annular sealing gasket 55 contacts the bottom surface of the inside of the lunch box, and the limiting cutting plate 513 at this time is in contact with the open end face of the lunch box. It should be noted that the cutting part of the lunch box needs to coincide with the edge of the limiting cutting plate 513, and then the vacuum pump is turned on to extract the gas inside the gas adsorption chamber 53 to form a gas suction force, which tightly adsorbs and fixes the lunch box, thereby realizing the adsorption-type fixation of the lunch box. Since the maximum cutting depth of the cutting head 612 can only be in contact with the side of the limiting cutting plate 513, the cutting limit function of the lunch box is realized.

[0032] For the specific structure of the position-limiting adsorption mechanism 5, please refer to Figure 5 and Figure 6, including a longitudinal hollow shell 51 and a limiting cutting plate 513, the top of the longitudinal hollow shell 51 is provided with a No. 1 fixing plate 510 which is an integral structure with it and fixedly connected to the bottom end of the rotor fixing plate 4, the interior of the longitudinal hollow shell 51 is provided with a No. 1 longitudinal component movable cavity 56, the circumferential surface of the longitudinal hollow shell 51 is provided with a plurality of movable guide grooves 59 which communicate with the external space and the circumferential surface of the No. 1 longitudinal component movable cavity 56, the longitudinal hollow shell 51 is provided with an inner limiting movable plate 517 which can move axially along the No. 1 longitudinal component movable cavity 56 inside the No. 1 longitudinal component movable cavity 56, in order to prevent the component from rotating, it is necessary to The structural shape of the cross section of the movable cavity 56 of the No. 1 longitudinal component is consistent with the structural shape of the cross section of the inner limit movable plate 517, both of which are polygonal structures, and the structural dimensions of the cross section of the movable cavity 56 of the No. 1 longitudinal component match the structural dimensions of the cross section of the inner limit movable plate 517. A plurality of limit slide bars 515 that penetrate the movable guide grooves 59 and can move axially along the movable guide grooves 59 are installed on the side of the inner limit movable plate 517. The movable cavity 56 of the No. 1 longitudinal component is installed with a No. 1 coil spring 57 at the bottom of the inner limit movable plate 517. The bottom end of the No. 1 coil spring 57 is fixed to the bottom of the movable cavity 56 of the No. 1 longitudinal component. The center end and the top are fixed on the bottom end surface of the inner limit movable plate 517, and when the rod body of the limit sliding rod 515 abuts against the bottom of the movable guide groove 59, the No. 1 coil spring 57 is in a stretched state, and the bottom of the longitudinal hollow shell 51 is provided with a suction cup shell 52 with an integral structure therewith, and a gas adsorption chamber 53 is provided inside the suction cup shell 52, and a No. 1 gas flow hole 58 connecting the external space and the gas adsorption chamber 53 is provided on the upper surface of the suction cup shell 52, and an exhaust channel 511 with an integral structure therewith is provided on the upper surface of the suction cup shell 52, and a gas valve is installed inside the exhaust channel 511, and a gas valve is installed inside the gas exhaust channel 511. , a No. 2 gas flow hole 512 connected to the gas adsorption chamber 53 at the bottom, a plurality of air vents 54 connecting the space below and the bottom end of the gas adsorption chamber 53 are arranged at the bottom center of the suction cup shell 52, an annular sealing gasket 55 is installed on the bottom surface of the suction cup shell 52 at the periphery of the air vents 54, a No. 1 component through-hole 514 which is sleeved on the periphery of the exhaust channel 511 is arranged in the plate body of the limiting cutting plate 513, a sleeve sliding hole 516 which is sleeved on the periphery of the longitudinal hollow shell 51 is arranged in the center of the limiting cutting plate 513, and the limiting cutting plate 513 is fixedly connected to the end of the limiting sliding rod 515 at the inner circumference of the sleeve sliding hole 516.

[0033] For flexible cutting pressure, see Figure 1 , Figure 2 , Figure 3 and Figure 7, it is necessary to set up an elastic pressure cutting mechanism 6, which is internally provided with a cutting head 612 that can resist the circumferential surface of the limiting cutting plate 513 and can cut the material at the corners of the lunch box, a No. 2 coil spring 68 that can exert elastic pressure on the cutting head 612 toward the limiting cutting plate 513, and a transverse threaded rod 69 that can change the elastic strength of the No. 2 coil spring 68, press the cutting head 612 inward, and when the lunch box is fixed, release the pressing force on the cutting head 612. Under the action of the No. 2 coil spring 68, the cutting head 612 will cut the scraps located outside the limiting cutting plate 513, start the driving motor 3, at this time, the suction cup shell 52 will drive the lunch box and the limiting cutting plate 513 to rotate, and the cutting head 612 can perform a relatively sliding cutting work on the scraps located outside the limiting cutting plate 513. At the same time, the cutting head 612 can be displaced laterally, so as to adapt to different edge structure shapes and improve the cutting range of the equipment.

[0034] For the specific structure of the elastic pressure type cutting mechanism 6, please refer to Figure 7 , including a transverse hollow shaft 61 fixedly installed in the fixed connecting sleeve 7, a transverse component movable chamber 62 is arranged inside the transverse hollow shaft 61, a No. 2 component through-hole 64 connecting the external space and one end of the transverse component movable chamber 62 is arranged at the end of the transverse hollow shaft 61 pointing to the axial center line of the longitudinal hollow shell 51, and the other end of the transverse hollow shaft 61 is provided with an internal threaded hole 63 connecting the external space and the other end of the transverse component movable chamber 62, and the transverse hollow shaft 61 is provided with a No. 1 movable plate 65 and a No. 2 movable plate 66 which can move axially along the transverse component movable chamber 62 inside the transverse component movable chamber 62, and a No. 2 coil spring 68 in a compressed state is arranged between the No. 1 movable plate 65 and the No. 2 movable plate 66, and a transverse telescopic rod 611 penetrating the No. 2 component through-hole 64 is fixedly installed on the end face of the No. 1 movable plate 65 facing the No. 2 component through-hole 64. In order to prevent the components from being deformed, In order to prevent the rotation phenomenon, it is necessary to make the structural shape of the cross section of the No. 2 component through-hole 64 consistent with the structural shape of the cross section of the transverse telescopic rod 611, both of which are polygonal structures, and the structural dimensions of the cross section of the No. 2 component through-hole 64 match the structural dimensions of the cross section of the transverse telescopic rod 611, and a cutting head 612 is fixedly installed on the end of the transverse telescopic rod 611, and the No. 2 movable plate 66 is provided with a component mounting groove 67 of an inner concave structure on the end face facing the internal threaded hole 63, and a transverse threaded rod 69 is installed in the internal threaded hole 63 through a threaded structure. Specifically, the threaded structure includes an internal threaded structure arranged in the internal threaded hole 63 and an external threaded structure arranged on the rod body of the transverse threaded rod 69, and the internal threaded structure matches the external threaded structure, one end of the transverse threaded rod 69 is installed in the component mounting groove 67 through a bearing, and the other end is fixedly installed with a rotating cap 610.

[0035] To prevent damage to the lunch box caused by excessive gas suction, please refer to Figure 4 and Figure 8 , it is necessary to set up an adsorption strength control mechanism 8, which is internally provided with a valve plate 86 that can produce a flow-blocking effect on the gas entering the No. 1 gas flow hole 58 and a No. 3 coil spring 87 that produces an upward elastic pressure on the valve plate 86. During the air extraction process, when the gas pressure inside the suction cup shell 52 is greater than the elastic strength of the No. 3 coil spring 87, the valve plate 86 will move downward, and the outside air will pass through the No. 4 gas flow hole 85, the gap of the valve plate 86, the gas flow groove 88, the No. 2 longitudinal component active cavity 82, the No. 3 gas flow hole 84 and the No. 1 gas flow hole 58 in turn, and be replenished into the gas adsorption cavity 53 in time, thereby preventing the excessive gas suction from causing damage to the lunch box.

[0036] For the specific structure of the adsorption strength control mechanism 8, please refer to Figure 8 , including a longitudinal hollow column 81, the bottom of the longitudinal hollow column 81 is provided with a bottom fixed port 83 which is an integral structure with it and fixedly mounted on the upper surface of the suction cup shell 52, the interior of the longitudinal hollow column 81 is provided with a No. 2 longitudinal component active cavity 82, the interior of the bottom fixed port 83 is provided with a No. 3 gas flow hole 84 which connects the bottom end of the No. 2 longitudinal component active cavity 82 and the No. 1 gas flow hole 58, the top of the longitudinal hollow column 81 is provided with a No. 4 gas flow hole 85 which connects the space above it and the top of the No. 2 longitudinal component active cavity 82, the longitudinal hollow column 81 is provided with a valve plate 86 which can move axially along the No. 2 longitudinal component active cavity 82, and the valve A No. 3 coil spring 87 in a compressed state is installed at the bottom of the plate 86. The circumferential surface of the valve plate 86 is provided with a plurality of concave structures and gas flow grooves 88 for the upward and downward flow of gas. The upper end surface of the valve plate 86 is provided with an annular embedding groove 810. The valve plate 86 is embedded with an annular sealing ring 89 inside the annular embedding groove 810. In order to ensure the flow-blocking effect on the gas, it is necessary to make the depth of the annular embedding groove 810 smaller than the thickness of the annular sealing ring 89. The structural radius of the inner circumferential surface of the annular sealing ring 89 is larger than the structural radius of the No. 4 gas flow hole 85. The structural radius of the outer circumferential surface of the annular sealing ring 89 is smaller than the distance between the gas flow groove 88 and the axial center line of the valve plate 86.

[0037] The specific working principle of the present invention is to fix the top fixed base plate 1 on the bottom of the fixed device or ceiling, and make the components below the top fixed base plate 1 in a suspended state, press the cutting head 612 inward, use the vacuum pump, connect the vacuum pipe of the vacuum pump with the valve core in the second gas flow hole 512, and then insert the lunch box suction cup shell 52 into the lunch box, and make the annular sealing gasket 55 contact the bottom surface of the lunch box, and make the limiting cutting plate 513 at this time contact the open end face of the lunch box. It should be noted that the cutting part of the lunch box needs to coincide with the edge of the limiting cutting plate 513, and then turn on the vacuum pump to make the gas inside the gas adsorption chamber 53 be extracted, forming a gas suction force to tightly adsorb and fix the lunch box;

[0038] The driving motor 3 is started. At this time, the suction cup housing 52 drives the lunch box and the limiting cutting plate 513 to rotate, and the cutting head 612 can perform a relatively sliding removal operation on the scraps located at the periphery of the limiting cutting plate 513 .

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A disposable lunch box trimming device, comprising a top fixed base plate (1), a driving motor (3) fixedly mounted on the bottom of the top fixed base plate (1) via a motor fixing seat (2), a rotor fixing plate (4) fixedly mounted on the rotor end of the driving motor (3), and a fixed connecting sleeve (7) fixedly mounted on the bottom of the top fixed base plate (1) and located on one side of the driving motor (3), characterized in that: Also includes, A limited suction mechanism (5) is provided inside thereof with a suction cup shell (52) capable of penetrating into the interior of the lunch box and fixing the lunch box by suction using gas suction, a longitudinal hollow shell (51) located at the top of the suction cup shell (52) and capable of rotating along with the rotor of the driving motor (3) and driving the suction cup shell (52) to rotate, and a limited cutting plate (513) capable of axial displacement along the longitudinal hollow shell (51) and capable of abutting against the open end of the lunch box; and an elastic pressure-type cutting mechanism (6), which is provided with a cutting head (612) capable of contacting the circumferential surface of the limiting cutting plate (513) and capable of cutting the material at the corner of the lunch box, a No. 2 coil spring (68) capable of exerting elastic pressure on the cutting head (612) in the direction of the limiting cutting plate (513), and a transverse threaded rod (69) capable of changing the elastic strength of the No. 2 coil spring (68); The position-limiting adsorption mechanism (5) comprises a longitudinal hollow shell (51) and a position-limiting cutting plate (513); a first fixing plate (510) which is integrally formed with the longitudinal hollow shell (51) and fixedly connected to the bottom end of the rotor fixing plate (4) is disposed at the top end of the longitudinal hollow shell (51); a first longitudinal component movable cavity (56) is disposed inside the longitudinal hollow shell (51); a plurality of movable guide grooves (59) which communicate with the external space and the circumferential surface of the first longitudinal component movable cavity (56) are disposed on the circumferential surface of the longitudinal hollow shell (51); and a movable guide groove (59) which is capable of moving axially along the first longitudinal component movable cavity (56) is disposed inside the first longitudinal component movable cavity (56) of the longitudinal hollow shell (51). An inner limit movable plate (517), the side of the inner limit movable plate (517) is equipped with a plurality of limit slide bars (515) that penetrate the movable guide grooves (59) and can move axially along the movable guide grooves (59), the No. 1 longitudinal component movable cavity (56) is equipped with a No. 1 coil spring (57) at the bottom of the inner limit movable plate (517), the bottom end of the No. 1 coil spring (57) is fixed to the bottom solid end of the No. 1 longitudinal component movable cavity (56), and the top is fixed to the bottom end surface of the inner limit movable plate (517), and when the rod body of the limit slide bar (515) is in contact with the bottom of the movable guide groove (59), the No. 1 coil spring (57) is in a stretched state.

2. The disposable lunch box trimming device according to claim 1, characterized in that: The bottom of the longitudinal hollow shell (51) is provided with a suction cup shell (52) of an integral structure therewith, a gas adsorption chamber (53) is provided inside the suction cup shell (52), a first gas flow hole (58) communicating with the external space and the gas adsorption chamber (53) is provided on the upper surface of the suction cup shell (52), an exhaust channel (511) of an integral structure therewith is provided on the upper surface of the suction cup shell (52), a second gas flow hole (512) having an open top and an air valve installed therein and communicating with the gas adsorption chamber (53) at the bottom is provided inside the exhaust channel (511), and the bottom center of the suction cup shell (52) is provided with a second gas flow hole (512) having an open top and an air valve installed therein and communicating with the gas adsorption chamber (53) at the bottom. A plurality of vent holes (54) are provided to connect the space below and the bottom end of the gas adsorption chamber (53); an annular sealing gasket (55) is installed on the bottom surface of the suction cup shell (52) at the periphery of the vent holes (54); a first component through hole (514) is provided in the plate body of the limiting cutting plate (513) and is sleeved on the periphery of the exhaust channel (511); a sleeve sliding hole (516) is provided at the center of the limiting cutting plate (513) and is sleeved on the periphery of the longitudinal hollow shell (51); the limiting cutting plate (513) is fixedly connected to the end of the limiting sliding rod (515) at the inner circumference of the sleeve sliding hole (516).

3. The disposable lunch box trimming device according to claim 2, characterized in that: The structural shape of the cross section of the movable cavity (56) of the first longitudinal component is consistent with the structural shape of the cross section of the inner limit movable plate (517), both of which are polygonal structures, and the structural dimensions of the cross section of the movable cavity (56) of the first longitudinal component match the structural dimensions of the cross section of the inner limit movable plate (517).

4. The disposable lunch box edge trimming device according to claim 3, characterized in that: The elastic pressure type cutting mechanism (6) comprises a transverse hollow shaft (61) fixedly installed in a fixed connecting sleeve (7), the transverse hollow shaft (61) is provided with a transverse component movable chamber (62) inside, the transverse hollow shaft (61) is provided with a second component through hole (64) at the end pointing to the axial center line of the longitudinal hollow shell (51) for connecting the external space and one end of the transverse component movable chamber (62), the other end of the transverse hollow shaft (61) is provided with an internal threaded hole (63) for connecting the external space and the other end of the transverse component movable chamber (62), the transverse hollow shaft (61) is provided with a first movable plate (65) and a second movable plate (66) which can move axially along the transverse component movable chamber (62) inside the transverse component movable chamber (62), the A No. 2 coil spring (68) in a compressed state is placed between the No. 1 movable plate (65) and the No. 2 movable plate (66); a transverse telescopic rod (611) passing through the No. 2 component through-hole (64) is fixedly installed on the end face of the No. 1 movable plate (65) facing the No. 2 component through-hole (64); a cutting head (612) is fixedly installed on the end of the transverse telescopic rod (611); a component mounting groove (67) with an inner concave structure is provided on the end face of the No. 2 movable plate (66) facing the internal threaded hole (63); a transverse threaded rod (69) is installed in the internal threaded hole (63) through a threaded structure; one end of the transverse threaded rod (69) is installed inside the component mounting groove (67) through a bearing, and a rotating cap (610) is fixedly installed on the other end.

5. The disposable lunch box trimming device according to claim 4, characterized in that: The structural shape of the cross section of the through hole (64) of the second component is consistent with the structural shape of the cross section of the transverse telescopic rod (611), both of which are polygonal structures, and the structural dimensions of the cross section of the through hole (64) of the second component match the structural dimensions of the cross section of the transverse telescopic rod (611).

6. The disposable lunch box edge trimming device according to claim 5, characterized in that: The thread structure comprises an internal thread structure arranged in the internal thread hole (63) and an external thread structure arranged on the rod body of the transverse thread rod (69), and the internal thread structure matches the external thread structure.

7. The disposable lunch box trimming device according to any one of claims 2 to 6, characterized in that: It also includes an adsorption strength control mechanism (8), which is internally provided with a valve plate (86) capable of producing a flow-blocking effect on the gas entering the No. 1 gas flow hole (58) and a No. 3 coil spring (87) for producing an upward elastic pressure on the valve plate (86).

8. The disposable lunch box edge trimming device according to claim 7, characterized in that: The adsorption intensity control mechanism (8) comprises a longitudinal hollow column (81), the bottom of the longitudinal hollow column (81) is provided with a bottom fixed port (83) which is an integral structure with the longitudinal hollow column (81) and fixedly mounted on the upper surface of the suction cup shell (52), the interior of the longitudinal hollow column (81) is provided with a second longitudinal component active cavity (82), the interior of the bottom fixed port (83) is provided with a third gas flow hole (84) which connects the bottom end of the second longitudinal component active cavity (82) and the first gas flow hole (58), the top of the longitudinal hollow column (81) is provided with a fourth gas flow hole (84) which connects the space above the longitudinal hollow column (81) and the top of the second longitudinal component active cavity (82). The second longitudinal component movable cavity (82) is provided with a valve plate (86) which can move axially along the second longitudinal component movable cavity (82), and the bottom of the valve plate (86) is installed with a third coil spring (87) in a compressed state, and the circumferential surface of the valve plate (86) is provided with a plurality of concave structures and gas flow grooves (88) for upward and downward flow of gas, and the upper end surface of the valve plate (86) is provided with an annular embedding groove (810), and the valve plate (86) is embedded with an annular sealing ring (89) inside the annular embedding groove (810).

9. The disposable lunch box edge trimming device according to claim 8, characterized in that: The depth of the annular embedding groove (810) is smaller than the thickness of the annular sealing ring (89), the structural radius of the inner circumferential surface of the annular sealing ring (89) is larger than the structural radius of the fourth gas flow hole (85), and the structural radius of the outer circumferential surface of the annular sealing ring (89) is smaller than the distance between the axial center line of the gas flow groove (88) and the valve plate (86).

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