Plastic packaging bag corner cutting device

Abstract

The utility model relates to the technical field of packaging bags, in particular to a plastic packaging bag corner cutting device which comprises a workbench, a supporting column arranged on the top of the workbench, a top plate arranged on the top of the supporting column, a power assembly and a switching mechanism. The mounting disc is arranged at the bottom of the power assembly, switching sliding rails are arranged on the outer side of the mounting disc, the four switching sliding rails are annularly arranged around the mounting disc, and the inner side of each switching sliding rail is used for containing different cutters; and the switching mechanism is arranged on the mounting disc. Through the arrangement of the switching mechanism, different cutters are controlled to slide on the switching slide rail and are clamped on the mounting disc through the insertion blocks, so that the different cutters are integrated on the same mounting disc, the cutter replacement process can be greatly simplified, an operator can quickly switch the cutters through simple sliding actions, and the cutter replacement efficiency is improved. And meanwhile, an operator can adjust a machining strategy more flexibly so as to adapt to different production requirements.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to a corner cutting device for plastic packaging bags. Background Art

[0002] Packaging bags refer to bags used to package various supplies, which make it convenient to transport and store goods during the production and circulation process. They are widely used in daily life and industrial production. The commodity nature of packaging itself is becoming more and more significant. It has become a special product that is no longer dependent on commodity production. It is a widely used product that all commodities cannot do without.

[0003] Chinese patent publication number CN212171466U discloses a device for cutting corners of plastic packaging bags, comprising a storage box, a placement box fixedly connected to the top of the storage box, a circular hole formed in the bottom of the placement box, a hydraulic cylinder provided at the top of the inner cavity of the placement box, a cutter provided at the output end of the hydraulic cylinder, and slides movably connected to the tops of both sides of the inner cavity of the storage box. The utility model opens the placement box and arranges the packaging bags that need to be cut and places them therein. By turning the placement box with a handle, the corner that needs to be cut is aligned with the gap between the two fixed plates. The placement box is pushed to activate the hydraulic cylinder to cut the corners of the packaging bags, thereby achieving the purpose of simple operation and simultaneous corner cutting of multiple packaging bags. After cutting is completed, the placement box is pulled out and rotated to cut other corners. At the same time, the waste generated by cutting enters the inner cavity of the storage box through the receiving hole for centralized processing.

[0004] However, the above-mentioned disclosed solutions have the following shortcomings: the existing plastic packaging bag corner cutting device needs to replace the tool when cutting different types of corners for different packaging bags, and the tool needs to be disassembled and reinstalled when replacing the tool, which is complicated and tedious, thereby affecting production efficiency. Utility Model Content

[0005] The utility model aims to solve the problem in the background technology that the cutting tool cannot be quickly replaced, and proposes a plastic packaging bag corner cutting device.

[0006] The technical solution of the utility model is: a plastic packaging bag corner cutting device, comprising a workbench, a support column arranged on the top of the workbench, and a top plate arranged on the top of the support column; and further comprising:

[0007] A power assembly is provided on the top plate and is used to provide power for the device;

[0008] The mounting plate is arranged at the bottom of the power assembly. A switching slide is arranged on the outside of the mounting plate. Four switching slides are arranged in a ring around the mounting plate. The inner side of each switching slide is used to place a different tool. The tool is moved from the top of the mounting plate to the bottom by moving the switching slide to switch the tool to be used.

[0009] And a switching mechanism, which is arranged on the mounting plate and is used to switch different knives to perform different styles of corner cutting on plastic bags, and to install and fix the knives that need to be used.

[0010] Preferably, the power assembly includes a cylinder and a hydraulic rod;

[0011] The cylinder is arranged on the top of the top plate, and the hydraulic rod is arranged on the output end of the cylinder.

[0012] Preferably, the switching mechanism includes an insertion rod, a connecting plate, a mounting tube and a cutter;

[0013] The insertion rod is slidably arranged at the end of the switching slide rail, the connecting plate is arranged at the bottom of the mounting plate, a slide groove 1 is arranged on the connecting plate, the mounting tube is slidably arranged on the switching slide rail, the tool is arranged at the bottom of the mounting tube, a sliding ring is slidably arranged on the outer side of the mounting tube, a spring 2 is arranged on the inner side of the mounting tube, a connecting rod 2 is arranged at the end of the spring 2 away from the mounting tube, an end of the connecting rod 2 close to the spring 2 is connected to the inner side of the sliding ring, a rotating rod is rotatably arranged at the end of the connecting rod 2 away from the spring 2, an insert is rotatably arranged at the end of the rotating rod away from the connecting rod 2, and a mounting groove is arranged inside the mounting plate.

[0014] Preferably, it further comprises a clamping assembly, the clamping assembly comprising a clamping plate, a fixed shaft, a spring 1 and a fixed plate;

[0015] The fixed shaft is set on the top of the workbench, the splint is slidably set on the outside of the fixed shaft, the spring is set on the top of the splint, the fixed plate is set on the top of the fixed shaft, and a connecting rod 1 is slidably set on the end of the fixed plate away from the fixed shaft, a pull block is set on the top of the connecting rod 1, and the bottom of the connecting rod 1 is fixedly connected to the top of the splint.

[0016] Preferably, it further comprises a cleaning mechanism, which comprises a connecting frame and a cleaning assembly;

[0017] The connecting frame is arranged on the outside of the hydraulic rod;

[0018] The cleaning component is arranged at one end of the connecting frame away from the hydraulic rod and is used for blowing off and collecting the edges and corners cut off from the plastic bags.

[0019] Preferably, the cleaning assembly includes a fixed tube, an air bag, an extrusion plate and an air blow tube;

[0020] The extrusion plate is arranged at the end of the connecting frame away from the hydraulic rod, the fixed tube is arranged on the top plate, the airbag is arranged on the inner side of the fixed tube, the side of the fixed tube is provided with a slide groove, the blowing tube is arranged on the top of the airbag, and the end of the blowing tube away from the airbag is provided with a fixed block.

[0021] Compared with the prior art, the present invention has the following beneficial technical effects:

[0022] 1. Through the setting of the switching mechanism, different tools are controlled to slide on the switching slide and clamped on the mounting plate through the insert block. In this way, different tools are integrated on the same mounting plate, which can greatly simplify the tool replacement process and improve operational efficiency. The operator can quickly switch tools through a simple sliding action, significantly reducing the tool change time. At the same time, the operator can more flexibly adjust the processing strategy to adapt to different production environments and requirements.

[0023] 2. Through the setting of the cleaning mechanism, the cylinder can drive the airbag to continuously stretch and contract when working. During the contraction process, airflow can be generated to blow away and collect the packaging waste on the surface of the workbench. In this way, the packaging waste can be automatically disposed of without manual cleaning, thereby saving the time of cleaning the waste and improving production efficiency. Moreover, the waste cleaning can be completed without stopping the machine, reducing the downtime caused by cleaning the waste, and keeping the workbench clean and tidy, which helps the operator to better observe and monitor the processing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a structural diagram of an embodiment of the utility model;

[0025] Figure 2 is a structural diagram of the switching mechanism;

[0026] Figure 3 Schematic diagram of the bottom structure of the switching mechanism;

[0027] Figure 4 Schematic diagram of the internal structure of the switching mechanism;

[0028] Figure 5 for Figure 4 An enlarged schematic diagram of

[0029] Figure 6 It is a structural diagram of the cleaning mechanism.

[0030] 1. Workbench; 2. Support column; 3. Top plate; 401. Clamp; 402. Fixed shaft; 403. Spring 1; 404. Fixed plate; 405. Connecting rod 1; 406. Pull block; 501. Cylinder; 502. Hydraulic rod; 503. Switching slide rail; 504. Insert rod; 505. Mounting plate; 506. Connecting plate; 507. Mounting tube; 508. Tool; 509. Sliding ring; 510. Slide groove 1; 511. Spring 2; 512. Mounting groove; 513. Connecting rod 2; 514. Rotating rod; 515. Insert block; 601. Connecting frame; 602. Fixed tube; 603. Extrusion plate; 604. Air bag; 605. Blowing tube; 606. Fixed block. DETAILED DESCRIPTION

[0031] Example 1

[0032] like Figure 1-Figure 5 As shown, the present invention proposes a plastic packaging bag corner cutting device, comprising a workbench 1, a support column 2 arranged on the top of the workbench 1, a top plate 3 arranged on the top of the support column 2, a power component and a switching mechanism:

[0033] The power assembly is arranged on the top plate 3 and is used to provide power for the device;

[0034] The mounting plate 505 is provided at the bottom of the power assembly. A switching rail 503 is provided on the outside of the mounting plate 505. Four switching rails 503 are arranged in a ring around the mounting plate 505. The inner side of each switching rail 503 is used to place a different tool 508. The tool 508 to be used is moved from the top of the mounting plate 505 to the bottom by moving the switching rail 503.

[0035] The switching mechanism is provided on the mounting plate 505 and is used to switch between different cutting tools 508 to perform different styles of corner cutting on the plastic bag, and to install and fix the cutting tools 508 to be used.

[0036] The power assembly includes a cylinder 501 and a hydraulic rod 502 ; the cylinder 501 is arranged on the top of the top plate 3 , and the hydraulic rod 502 is arranged at the output end of the cylinder 501 .

[0037] The switching mechanism includes an insertion rod 504, a connecting plate 506, a mounting tube 507 and a tool 508; the insertion rod 504 is slidably arranged at the end of the switching slide rail 503, the connecting plate 506 is arranged at the bottom of the mounting plate 505, and the connecting plate 506 is fixedly connected to the end of the four switching slide rails 503 away from the insertion rod 504, and an empty slot is provided on the connecting plate 506, and the empty slot and the bottom of the mounting tube 507 can be matched and connected, so that the mounting tube 507 can be installed in the center position of the mounting plate 505 for work, and a slide groove 510 is provided on the connecting plate 506, and the end of the slide groove 510 is connected to the end of the switching slide rail 503, and the mounting tube 5 07 is slidably arranged on the switching slide rail 503, and the tool 508 is arranged at the bottom of the mounting tube 507. A sliding ring 509 is slidably arranged on the outer side of the mounting tube 507. A through hole is provided on the sliding ring 509. The diameter of the through hole is the same as that of the insertion rod 504. Therefore, the mounting tube 507 can be fixed to one end of the switching slide rail 503 located at the top of the mounting plate 505 through the insertion rod 504, thereby fixing the other three unnecessary tools 508 on the top of the mounting plate 505 to avoid affecting the angle cutting work. A spring 2 511 is provided on the inner side of the mounting tube 507, and a connecting rod 2 513 is provided on the end of the spring 2 511 away from the mounting tube 507. The end of the second connecting rod 513 close to the second spring 511 is connected to the inner side of the sliding ring 509, and the end of the second connecting rod 513 away from the second spring 511 is rotatably provided with a rotating rod 514, and the end of the rotating rod 514 away from the second connecting rod 513 is rotatably provided with an insert block 515, and the insert block 515 is slidably connected to the end of the mounting tube 507. The interior of the mounting plate 505 is provided with a mounting groove 512, and the mounting groove 512 is located at the end surface of the insert block 515. The mounting groove 512 and the insert block 515 can be matched and connected. After selecting the tool 508 to be used, the insert rod 504 on the mounting tube 507 of the tool 508 is pulled out, and the mounting tube 507 can be moved at this time. 507, move the mounting tube 507 to the connecting disk 506, and then move the sliding ring 509 downward. At this time, the spring 2 511 is in a compressed state, and the sliding ring 509 drives the connecting rod 2 513 to move. The connecting rod 2 513 drives the two plug blocks 515 to move toward each other through the rotating rod 514, so that the two plug blocks 515 retract. Then, the end of the mounting tube 507 and the connecting disk 506 are matched and installed together. After the installation is completed, the sliding ring 509 is released. At this time, the connecting rod returns to its original position under the action of the spring 2 511, thereby driving the plug block 515 to be stuck in the mounting groove 512 on the mounting disk 505, thereby fixing the position of the tool 508.

[0038] The clamping assembly includes a clamping plate 401, a fixed shaft 402, a spring 403 and a fixed plate 404; the fixed shaft 402 is arranged on the top of the workbench 1, the clamping plate 401 is slidably arranged on the outside of the fixed shaft 402, the spring 403 is arranged on the top of the clamping plate 401, and the fixed plate 404 is arranged on the top of the fixed shaft 402. The fixing plate 404 is slidably provided with a connecting rod 405 at one end away from the fixed shaft 402, and a pulling block 406 is provided on the top of the connecting rod 405. The bottom of the connecting rod 405 is fixedly connected to the top of the clamping plate 401, and the connecting rod 405 is pulled up by the pulling block 406. The connecting rod 405 drives the clamping plate 401 to be pulled up. At this time, the spring 403 contracts, and then the packaging bag is placed under the clamping plate 401, and the pulling block 406 is released. Under the action of the spring 403, the clamping plate 401 clamps the side of the packaging bag, thereby facilitating the angle cutting work.

[0039] Example 2

[0040] like Figure 6 As shown, the present invention proposes a plastic packaging bag corner cutting device. Compared with the first embodiment, this embodiment introduces the structure of the cleaning mechanism in detail.

[0041] The cleaning mechanism includes a connecting frame 601 and a cleaning assembly; the connecting frame 601 is arranged on the outside of the hydraulic rod 502; the cleaning assembly is arranged at the end of the connecting frame 601 away from the hydraulic rod 502, and is used to blow off and collect the edges and corners cut off from the plastic bag. The cleaning assembly includes a fixed tube 602, an air bag 604, an extrusion plate 603 and an air blowing pipe 605; the extrusion plate 603 is arranged at the end of the connecting frame 601 away from the hydraulic rod 502, the fixed tube 602 is arranged on the top plate 3, the air bag 604 is arranged on the inside of the fixed tube 602 and is located at the top, the bottom of the fixed tube 602 is connected to the top of the extrusion plate 603, the side of the fixed tube 602 is provided with a slide groove, the air blowing pipe 605 is arranged at the top of the air bag 604, and the end of the air blowing pipe 605 away from the air bag 604 is provided with a fixed block 6 06. The movement of the cylinder 501 drives the hydraulic rod 502 to move. When the hydraulic rod 502 moves downward, the air bag 604 is stretched. Then the hydraulic rod 502 drives the cutter 508 to cut the corner of the packaging bag. After the corner cutting is completed, the cylinder 501 drives the hydraulic rod 502 to return. During the return process, the extrusion plate 603 will continue to squeeze the air bag 604 to generate airflow, and the airflow is blown out through the air pipe 605. The end of the air pipe 605 away from the air bag 604 points to the cutting corner, so the cut packaging waste can be blown away to avoid affecting the subsequent cutting work.

[0042] In summary, when the present invention is used, the connecting rod 1 405 is pulled up by the pulling block 406, and the connecting rod 1 405 drives the splint 401 to be pulled up. At this time, the spring 1 403 contracts, and then the packaging bag is placed under the splint 401, and the pulling block 406 is released. Under the action of the spring 1 403, the splint 401 clamps the side of the packaging bag, and then the tool 508 to be used is selected, and the insertion rod 504 on the mounting tube 507 of the tool 508 is pulled out. At this time, the mounting tube 507 can be moved, and the mounting tube 507 is moved to the connecting disk 506, and then the sliding ring 509 is moved downward. At this time, the spring 2 511 is in a compressed state, and the sliding ring 509 drives the connecting rod 2 513 to move, and the connecting rod 2 513 drives the two plug blocks 515 to move toward each other through the rotating rod 514, so that the two plug blocks 515 are retracted, and then the end of the mounting tube 507 is matched with the connecting disk 506 for installation. After the installation is completed, the sliding ring 509 is released. At this time, the connecting rod returns to its original position under the action of spring 2 511, thereby driving the insert block 515 to be stuck in the installation groove 512 on the installation plate 505, thereby fixing the position of the tool 508. Then the cylinder 501 is started, and the cylinder 501 drives the hydraulic rod 502 to move downward. The hydraulic rod 502 drives the installation plate 505 to move downward, and the installation plate 505 drives the tool 508 to move downward, thereby cutting the plastic packaging bag. At the same time, the hydraulic rod 502 drives the connecting frame 601 to move downward, and the connecting frame 601 stretches the air bag 604 through the extrusion plate 603. After the cutting work is completed, the cylinder 501 drives the hydraulic rod 502 to return. During the return process, the hydraulic rod 502 drives the extrusion plate 603 through the connecting frame 601 to continuously squeeze the air bag 604, thereby generating airflow, which is blown out through the air blow pipe 605, so that the cut packaging waste can be blown away.

[0043] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A plastic packaging bag corner cutting device, comprising a workbench (1), a support column (2) arranged on the top of the workbench (1), and a top plate (3) arranged on the top of the support column (2); characterized in that: Also includes: A power assembly is provided on the top plate (3) and is used to provide power for the device; The mounting plate (505) is arranged at the bottom of the power assembly. A switching slide rail (503) is arranged on the outside of the mounting plate (505). Four switching slide rails (503) are arranged in a ring around the mounting plate (505). The inner side of each switching slide rail (503) is used to place a different tool (508). The tool (508) to be used is switched by moving the switching slide rail (503) to move the tool (508) from the top of the mounting plate (505) to the bottom. And a switching mechanism is provided on the mounting plate (505) for switching different cutting tools (508) to cut the plastic bag into different styles, and the cutting tool (508) to be used is installed and fixed.

2. The plastic packaging bag corner cutting device according to claim 1, characterized in that: The power assembly includes a cylinder (501) and a hydraulic rod (502); The cylinder (501) is arranged on the top of the top plate (3), and the hydraulic rod (502) is arranged at the output end of the cylinder (501).

3. The plastic packaging bag corner cutting device according to claim 1, characterized in that: The switching mechanism includes an inserting rod (504), a connecting plate (506), a mounting tube (507) and a cutting tool (508); The insert rod (504) is slidably arranged on the end of the switching slide rail (503), the connecting plate (506) is arranged at the bottom of the mounting plate (505), the connecting plate (506) is provided with a slide groove (510), the mounting tube (507) is slidably arranged on the switching slide rail (503), the tool (508) is arranged at the bottom of the mounting tube (507), the outer side of the mounting tube (507) is slidably provided with a sliding ring (509), and the inner side of the mounting tube (507) is provided with a spring (511). A second connecting rod (513) is provided at one end of the second spring (511) away from the mounting tube (507), and an end of the second connecting rod (513) close to the second spring (511) is connected to the inner side of the sliding ring (509). A rotating rod (514) is provided at one end of the second connecting rod (513) away from the second spring (511), and an insert (515) is provided at one end of the rotating rod (514) away from the second connecting rod (513). A mounting groove (512) is provided inside the mounting plate (505).

4. The plastic packaging bag corner cutting device according to claim 1, characterized in that: It also includes a clamping assembly, which includes a clamping plate (401), a fixed shaft (402), a spring (403) and a fixed plate (404); The fixed shaft (402) is arranged on the top of the workbench (1), the clamping plate (401) is slidably arranged on the outside of the fixed shaft (402), the spring (403) is arranged on the top of the clamping plate (401), the fixed plate (404) is arranged on the top of the fixed shaft (402), and the fixed plate (404) is slidably provided with a connecting rod (405) at one end away from the fixed shaft (402), the top of the connecting rod (405) is provided with a pulling block (406), and the bottom of the connecting rod (405) is fixedly connected to the top of the clamping plate (401).

5. The plastic packaging bag corner cutting device according to claim 2, characterized in that: Also included is a cleaning mechanism, which includes a connecting frame (601) and a cleaning assembly; The connecting frame (601) is arranged on the outside of the hydraulic rod (502); The cleaning component is arranged at one end of the connecting frame (601) away from the hydraulic rod (502) and is used to blow off and collect the edges and corners cut off from the plastic bags.

6. The plastic packaging bag corner cutting device according to claim 5, characterized in that: The cleaning assembly includes a fixed tube (602), an air bag (604), an extrusion plate (603) and an air blowing tube (605); The extrusion plate (603) is arranged at one end of the connecting frame (601) away from the hydraulic rod (502), the fixed tube (602) is arranged on the top plate (3), the air bag (604) is arranged on the inner side of the fixed tube (602), the side of the fixed tube (602) is provided with a slide groove, the blowing tube (605) is arranged on the top of the air bag (604), and the end of the blowing tube (605) away from the air bag (604) is provided with a fixing block (606).

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