Packaging corner cutting device facilitating negative pressure material collection

Abstract

The application relates to the technical field of packaging cutting equipment, and particularly discloses packaging corner cutting equipment convenient for negative pressure material collection, which aims at solving the problem of poor cutting mode in the prior art; the packaging corner cutting equipment comprises a material receiving plate, a negative pressure material suction port is arranged at the upper end of the material receiving plate, a material suction mechanism for sucking away waste materials is connected to the lower end of the negative pressure material suction port, a second cutting knife and a first cutting knife are arranged above the material receiving plate, a cutting driving mechanism for driving the second cutting knife and the first cutting knife to be obliquely cut is arranged, the application is designed according to the existing situation, the disadvantages of the existing vertical cutting are solved, an oblique cutting structure is constructed, the cutting damper of the cutting knife edge is greatly reduced, the service life of the equipment is effectively prolonged, the cutting power is derived from the power of material feeding, a new power source does not need to be configured, and the cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of packaging cutting equipment technology, and in particular to packaging corner cutting equipment that facilitates negative pressure material collection. Background Technology

[0002] Sanitary napkins are absorbent materials, primarily made of cotton, non-woven fabric, pulp, or a composite of these materials, forming a polymer and polymer composite paper. Sanitary napkins consist of three layers: the top layer, the absorbent core, and the bottom layer. During the manufacturing process, sanitary napkins need to be packaged. After packaging, the corners of the packaging bag need to be cut. Current cutting methods involve a vertically downward-moving cutter to cut the packaging bag. This vertical cutting method damages the blade, requiring re-sharpening or replacement after thousands of cuts. Changing the vertical cutting to a beveled cut would significantly reduce cutting resistance and extend the lifespan of the components.

[0003] Based on this, we now offer packaging corner cutting equipment that facilitates negative pressure material collection, which can eliminate the drawbacks of existing devices. Summary of the Invention

[0004] The purpose of this invention is to provide a packaging edge cutting device that facilitates negative pressure material collection, thus solving the problem of poor cutting methods in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A packaging corner cutting device that facilitates negative pressure material collection includes a receiving plate with a negative pressure suction port at the upper end and a suction mechanism for removing waste material at the lower end of the suction port. A second cutting blade and a first cutting blade are provided above the receiving plate, and the second cutting blade and the first cutting blade are connected to a cutting drive mechanism for driving them to make up-and-down oblique cuts.

[0007] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0008] In one alternative: the cutting ends of the first and second cutting blades are beveled.

[0009] In one alternative embodiment: the cutting drive mechanism includes a vertically arranged vertical guide column, the lower end of which is connected to a horizontal frame assembly on the outer side of the receiving plate. Two vertical sliders are slidably arranged on the vertical guide column. The vertical sliders are connected to the first cutting blade through a horizontal moving component. The other side of the vertical sliders is connected to a rack and pinion linkage. The two rack and pinion linkages are connected to a vertical drive component for driving the relative movement of the two components.

[0010] In one alternative embodiment: the vertical drive component includes a vertical rack vertically disposed at the other end of a rack and pinion linkage, the vertical racks on the two rack and pinion linkages being staggered, a second gear meshing between the two vertical racks, the second gear being connected to a first gear via a transmission shaft, the transmission shaft being rotatably mounted on a bearing bracket, the lower end of the bearing bracket being connected to a horizontal frame assembly on the outer side of the receiving plate, a horizontal rack meshing on the lower side of the first gear, the horizontal rack being connected to a horizontal trigger unit via a triangular bracket.

[0011] In one alternative: the horizontal triggering unit includes a triggering push plate, and the triggering push plate has two horizontal guide rods on the side facing the receiving plate. The horizontal guide rods are slidably disposed with the guide sleeve at the lower end of the receiving plate, and the outer side of the horizontal guide rods has a connection area for connecting with the tripod.

[0012] In one alternative embodiment: a vertical reset unit is provided between the vertical slider and the vertical guide post. The vertical reset unit includes a reset block disposed on the outside of the vertical guide post, and the reset block is connected to the vertical slider by a second spring.

[0013] In one alternative: the horizontal moving component includes a horizontal guide sleeve disposed on the side of the vertical slider, two horizontal displacement rods are horizontally slidably disposed on the horizontal guide sleeve, the ends of the horizontal displacement rods are connected to a first cutting blade or a second cutting blade through a cutting connecting plate, the other end of the horizontal displacement rods is provided with a connecting end block, the connecting end block is connected to the horizontal guide sleeve through a first spring, the outer end of the connecting end block is provided with a horizontally disposed pressing rod, the outer end of the pressing rod is rotatably provided with a pressing wheel, and a guide component is provided between the upper and lower pressing wheels to guide them to be horizontally offset.

[0014] In one alternative: the guide is a guide frame, the outer side of the guide frame is connected to the middle position of the vertical guide post through a positioning side rod, the guide frame is a parallelogram structure, and the pressure wheel is in pressure contact with the inclined surfaces at the upper and lower ends of the guide frame.

[0015] In one alternative: the suction mechanism includes a suction pipe connected to the lower port of the negative pressure suction port, the lower end of the suction pipe being horizontally connected to a horizontal pipe, one end of the horizontal pipe being provided with an air blowing pipe for blowing air, the diameter of the air blowing pipe being smaller than the diameter of the horizontal pipe, and the inner end of the air blowing pipe extending to the lower port of the suction pipe.

[0016] In one alternative embodiment: a clamping unit is further provided on one side of the first and second cutting blades to press the corners of the packaging bag. The clamping unit presses the corners of the packaging bag, making cutting more convenient. The clamping unit includes a cutting link connected to a vertical slider. The end of the cutting link extends toward the surface of the first cutting blade. A floating sleeve is provided at the end of the cutting link. A floating rod with a rectangular cross-section is slidably mounted on the floating sleeve. A cutting positioning strip for pressing the corners of the packaging bag is provided at the end of the floating rod. An elastic layer is provided at the clamping end of the cutting positioning strip. A floating spring is provided between the cutting positioning strip and the floating sleeve.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] This invention addresses existing needs and the drawbacks of existing vertical cutting by constructing a beveled cutting structure. This significantly reduces the cutting damping of the cutting blade, effectively improving the service life of the equipment. Furthermore, the cutting power here originates from the power triggered by the feeding, eliminating the need for a new power source and helping to reduce costs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention.

[0020] Figure 2 This is a schematic diagram of the structure on the other side of the present invention.

[0021] Figure 3 This is a schematic diagram of the horizontal pipe and air blowing pipe structure of the present invention.

[0022] Figure 4 This is a schematic diagram of the horizontal guide sleeve structure of the present invention.

[0023] Figure 5 This is a schematic diagram of the first spring structure of the present invention.

[0024] Figure 6 This is a schematic diagram of the guide frame structure of the present invention.

[0025] Figure 7 This is a schematic diagram of the optimized structure of the present invention.

[0026] Figure label annotation: First cutting blade 100, Second cutting blade 101;

[0027] Material receiving plate 200, negative pressure suction port 201, trigger push plate 202, air blowing pipe 203, air blowing fan 204, suction pipe 205, horizontal pipe 206, horizontal guide rod 207;

[0028] Cutting plate 301, vertical rack 302, rack connecting rod 303, horizontal displacement rod 304, horizontal guide sleeve 305, vertical slider 306, first spring 307, connecting end block 308, pressing rod 309, pressing wheel 310, guide frame 312, positioning side rod 313, first gear 314, second gear 315, horizontal rack 316, tripod 317, vertical guide column 318, reset block 319, second spring 320;

[0029] Cutting positioning strip 501, floating spring 502, floating slide bar 503, floating slide sleeve 504, cutting connecting rod 505. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] like Figures 1-7 As shown, this embodiment of the invention provides a packaging corner cutting device that facilitates negative pressure material collection, including a receiving plate 200. The upper end of the receiving plate 200 is provided with a negative pressure suction port 201. The lower end of the negative pressure suction port 201 is connected to a suction mechanism for sucking up waste material. A second cutting blade 101 and a first cutting blade 100 are provided above the receiving plate 200. The second cutting blade 101 and the first cutting blade 100 are connected to a cutting drive mechanism for driving them to make oblique cuts up and down. The cutting drive mechanism can drive the first cutting blade 100 and the second cutting blade 101 to move relative to each other to complete the oblique cutting of the packaging corner.

[0032] The cutting ends of the first cutting blade 100 and the second cutting blade 101 are beveled, which makes it easier to simulate scissors cutting the material from one side during cutting.

[0033] The cutting drive mechanism includes a vertically arranged vertical guide column 318. The lower end of the vertical guide column 318 is connected to the horizontal frame assembly outside the receiving plate 200. Two vertical sliders 306 are slidably arranged on the vertical guide column 318. The vertical sliders 306 are connected to the first cutting blade 100 through a horizontal moving part. The other side of the vertical sliders 306 is connected to a rack and pinion 303. The two rack and pinion 303 are connected to a vertical drive member for driving the two sliders to move relative to each other. The vertical drive member drives the two vertical sliders 306 to move closer or further away, thereby providing power for the vertical cutting of the first cutting blade 100 and the second cutting blade 101.

[0034] The vertical drive component includes a vertical rack 302 vertically disposed at the other end of the rack connecting rod 303. The vertical racks 302 on the two rack connecting rods 303 are staggered, and a second gear 315 meshes between the two vertical racks 302. The second gear 315 is connected to a first gear 314 via a transmission shaft. The transmission shaft is rotatably mounted on a bearing bracket, and the lower end of the bearing bracket is connected to a horizontal frame assembly on the outer side of the receiving plate 200. A horizontal rack 316 meshes on the lower side of the first gear 314. 316 is connected to the horizontal triggering unit via the tripod 317. When the packaging bag displacement seat moves to the receiving plate 200, the horizontal triggering unit will receive a thrust, thereby driving the tripod 317 and the horizontal rack 316 to move laterally. The horizontal rack 316 drives the first gear 314 to rotate. The first gear 314 drives the second gear 315 to rotate via the transmission shaft. The second gear 315 matches the vertical rack 302 and drives the two rack connecting rods 303 to move up and down, thereby providing vertical power for cutting.

[0035] The horizontal triggering unit includes a triggering push plate 202. The triggering push plate 202 has two horizontal guide rods 207 on the side facing the receiving plate 200. The horizontal guide rods 207 are slidably disposed with the guide sleeve at the lower end of the receiving plate 200. The outer side of the horizontal guide rods 207 has a connection area connected to the tripod 317. When the packaging bag displacement seat moves to the position of the receiving plate 200, the packaging bag to be cut moves to the gap between the first cutting blade 100 and the second cutting blade 101. The triggering push plate 202 is pushed and will drive the tripod 317 and the horizontal rack 316 to move, thereby triggering the vertical drive to move so that the first cutting blade 100 and the second cutting blade 101 can obtain cutting power.

[0036] A vertical reset unit is provided between the vertical slider 306 and the vertical guide post 318. The vertical reset unit includes a reset block 319 disposed outside the vertical guide post 318. The reset block 319 is connected to the vertical slider 306 by a second spring 320. Under the traction of the second spring 320, the first cutting blade 100 and the second cutting blade 101 will quickly separate.

[0037] The horizontal moving component includes a horizontal guide sleeve 305 disposed on the side of the vertical slider 306. Two horizontal displacement rods 304 are horizontally slidably disposed on the horizontal guide sleeve 305. The ends of the horizontal displacement rods 304 are connected to the first cutting blade 100 or the second cutting blade 101 through the cutting connecting plate 301. The other end of the horizontal displacement rods 304 is provided with a connecting end block 308. The connecting end block 308 is connected to the horizontal guide sleeve 305 through a first spring 307. The outer end of the connecting end block 308 is provided with a horizontally disposed pressing rod 309. The outer end of the pressing rod 309 is rotatably provided with a pressing wheel 310. A guide member is provided between the upper and lower pressing wheels 310 to guide them to be horizontally offset. Under the action of the guide member, the pressing wheel 310 drives the connecting end block 308 to move horizontally through the pressing rod 309. The connecting end block 308 drives the first cutting blade 100 and the second cutting blade 101 to move horizontally through the horizontal displacement rods 304 and the cutting connecting plate 301, providing displacement for oblique cutting.

[0038] The guide is a guide frame 312. The outer side of the guide frame 312 is connected to the middle position of the vertical guide post 318 through the positioning side rod 313. The guide frame 312 has a parallelogram structure. The pressure roller 310 is in contact with the inclined surfaces at the upper and lower ends of the guide frame 312. When the two pressure rollers 310 are close together, under the guidance of the inclined surfaces, the two pressure rollers 310 will move in a staggered manner on the horizontal plane to provide oblique cutting power.

[0039] The suction mechanism includes a suction pipe 205 connected to the lower end of the negative pressure suction port 201. The lower end of the suction pipe 205 is horizontally connected to a horizontal pipe 206. One end of the horizontal pipe 206 is provided with an air blowing pipe 203 for blowing air. The diameter of the air blowing pipe 203 is smaller than the diameter of the horizontal pipe 206. The inner end of the air blowing pipe 203 extends to the lower end of the suction pipe 205. The other end of the horizontal pipe 206 is connected to a collection box for collecting waste. When the air blowing fan 204 is working, air enters the horizontal pipe 206 along the air blowing pipe 203. When the gas is ejected at high speed at the lower end of the suction pipe 205, a negative pressure is formed at the lower end of the suction pipe 205, thereby providing power for the suction force generated at the upper end of the negative pressure suction port 201.

[0040] Figure 7As shown, the first cutting blade 100 and the second cutting blade 101 are also provided with a pressing unit on one side to press the corners of the packaging bag. The pressing unit presses the corners of the packaging bag, making cutting more convenient. The pressing unit includes a cutting link 505 connected to the vertical slider 306. The end of the cutting link 505 extends toward the surface of the first cutting blade 100. A floating sleeve 504 is provided at the end of the cutting link 505. A floating slide rod 503 with a rectangular cross-section is slidably mounted on the floating sleeve 504. The floating slide bar 503 has a cutting positioning strip 501 at its end for pressing the corners of the packaging bag. The pressing end of the cutting positioning strip 501 has an elastic layer. A floating spring 502 is provided between the cutting positioning strip 501 and the floating slide sleeve 504. When the horizontal trigger unit is working, the vertical slider 306 will drive the two cutting positioning strips 501 to move closer together in advance, thereby pressing the corners of the packaging bag first. During the cutting process, the floating slide sleeve 504 slides outside the floating slide bar 503, thereby making the cutting more stable.

[0041] Working principle: When the fixed packaging bag moves to the receiving plate 200 position along with the packaging bag displacement seat, the push plate 202 is pushed, which drives the tripod 317 and the horizontal rack 316 to move, thereby triggering the vertical drive to move, so that the first cutting blade 100 and the second cutting blade 101 can obtain cutting power. The horizontal rack 316 drives the first gear 314 to rotate, and the first gear 314 drives the second gear 315 to rotate through the transmission shaft. The second gear 315 matches the vertical rack 302, driving the two rack connecting rods 303 to move up and down, thereby providing vertical power for cutting. The vertical drive drives the two vertical sliders 306 to move closer or further away, thereby... The first cutting blade 100 and the second cutting blade 101 are powered for vertical cutting. When the first cutting blade 100 and the second cutting blade 101 are cutting vertically, the pressure roller 310 is guided by the guide frame 312. Under the guidance of the inclined plane, the two pressure rollers 310 will move in a staggered manner on the horizontal plane. This makes the first cutting blade 100 and the second cutting blade 101 move horizontally while moving vertically, thereby completing the oblique cutting action. In addition, since the cutting ends of the first cutting blade 100 and the second cutting blade 101 are both inclined, and in conjunction with the oblique cutting action, the whole cutting process is similar to scissor cutting, which effectively reduces the cutting resistance and greatly improves the life of the blade.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A packaging corner cutting device for easy negative pressure material collection, comprising a receiving plate (200), wherein a negative pressure suction port (201) is provided at the upper end of the receiving plate (200), characterized in that: The lower end of the negative pressure suction port (201) is connected to a suction mechanism for sucking away waste material. A second cutting blade (101) and a first cutting blade (100) are provided above the receiving plate (200). The second cutting blade (101) and the first cutting blade (100) are connected to a cutting drive mechanism for driving them to cut obliquely up and down. The cutting drive mechanism includes a vertically arranged vertical guide column (318), the lower end of which is connected to the horizontal frame assembly outside the receiving plate (200). Two vertical sliders (306) are slidably arranged on the vertical guide column (318). The two vertical sliders (306) are respectively connected to the first cutting blade (100) and the second cutting blade (101) through horizontal moving parts. The other side of the vertical slider (306) is connected to a rack and pinion rod (303). The two rack and pinion rods (303) are connected to a vertical drive member for driving the relative movement of the two. The vertical drive unit includes a vertical rack (302) vertically disposed at the other end of the rack and pinion (303). The vertical racks (302) on the two rack and pinion (303) are staggered. A second gear (315) meshes between the two vertical racks (302). The second gear (315) is connected to the first gear (314) through a transmission shaft. The transmission shaft is rotatably disposed on a bearing bracket. The lower end of the bearing bracket is connected to a horizontal frame assembly on the outer side of the receiving plate (200). A horizontal rack (316) meshes on the lower side of the first gear (314). The horizontal rack (316) is connected to the horizontal trigger unit through a triangular bracket (317). The horizontal moving component includes a horizontal guide sleeve (305) disposed on the side of the vertical slider (306). Two horizontal displacement rods (304) are horizontally slidably disposed on the horizontal guide sleeve (305). The ends of the horizontal displacement rods (304) are connected to the first cutting blade (100) or the second cutting blade (101) through the cutting connecting plate (301). The other end of the horizontal displacement rods (304) is provided with a connecting end block (308). The connecting end block (308) is connected to the horizontal guide sleeve (305) through a first spring (307). The outer end of the connecting end block (308) is provided with a horizontally disposed pressing rod (309). The outer end of the pressing rod (309) is rotatably provided with a pressing wheel (310). A guide component is provided between the upper and lower pressing wheels (310) to guide them to be horizontally offset. The guide is a guide frame (312). The outer side of the guide frame (312) is connected to the middle position of the vertical guide column (318) through the positioning side rod (313). The guide frame (312) has a parallelogram structure. The pressure wheel (310) is in contact with the inclined surfaces at the upper and lower ends of the guide frame (312).

2. The packaging corner cutting device for facilitating negative pressure material collection according to claim 1, characterized in that, The cutting ends of the first cutting blade (100) and the second cutting blade (101) are beveled.

3. The packaging corner cutting device for facilitating negative pressure material collection according to claim 1, characterized in that, The horizontal triggering unit includes a triggering push plate (202). The triggering push plate (202) has two horizontal guide rods (207) on the side facing the receiving plate (200). The horizontal guide rods (207) are slidably disposed with the guide sleeve at the lower end of the receiving plate (200). The outer side of the horizontal guide rods (207) is provided with a connection area for connecting with the tripod (317).

4. The packaging corner cutting device for facilitating negative pressure material collection according to claim 1, characterized in that, A vertical reset unit is provided between the vertical slider (306) and the vertical guide post (318). The vertical reset unit includes a reset block (319) disposed on the outside of the vertical guide post (318). The reset block (319) is connected to the vertical slider (306) by a second spring (320).

5. The packaging corner cutting device for facilitating negative pressure material collection according to claim 1, characterized in that, The suction mechanism includes a suction pipe (205) connected to the lower port of the negative pressure suction port (201). The lower end of the suction pipe (205) is horizontally connected to a horizontal pipe (206). One end of the horizontal pipe (206) is provided with an air blowing pipe (203) for blowing air. The diameter of the air blowing pipe (203) is smaller than the diameter of the horizontal pipe (206). The inner end of the air blowing pipe (203) extends to the lower port of the suction pipe (205).

6. The packaging corner cutting device for facilitating negative pressure material collection according to claim 1, characterized in that, The first cutting blade (100) and the second cutting blade (101) are also provided with a pressing unit on one side to press the corners of the packaging bag. The pressing unit presses the corners of the packaging bag, making cutting more convenient. The pressing unit includes a cutting link (505) connected to the vertical slider (306). The end of the cutting link (505) extends toward the surface of the first cutting blade (100). The end of the cutting link (505) is provided with a floating sleeve (504). A floating slide rod (503) with a rectangular cross section is slidably mounted on the floating sleeve (504). The end of the floating slide rod (503) is provided with a cutting positioning strip (501) to press the corners of the packaging bag. The pressing end of the cutting positioning strip (501) is provided with an elastic layer. A floating spring (502) is provided between the cutting positioning strip (501) and the floating sleeve (504).

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