A packaging material cutting device
By coordinating the rotating rod, cutting blade, positioning pin, and positioning hole, and combining the design of a servo motor and hydraulic telescopic rod, the problem of poor material adaptability of existing devices is solved, enabling rapid switching of cutting blade angle and precise material fixation, thereby improving cutting efficiency and finished product quality.
Patent Information
- Application Number
- CN202521997545.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-17
AI Technical Summary
Existing cutting devices are not adaptable to different materials, and the blade assembly needs to be changed during cutting, which is time-consuming and labor-intensive, affecting work efficiency.
The cutting angle can be quickly switched by the cooperation of the rotating rod, the cutting blade, the positioning pin and the positioning hole. Combined with the linkage design of the pressure plate driven by the servo motor and the hydraulic telescopic rod, the material is accurately fixed and the cutting process is stable.
It enables rapid switching of cutting blade angles, adapts to the cutting needs of various materials, improves the equipment's multi-category production adaptability, reduces frequent operation interruptions, and ensures cutting accuracy and finished product qualification rate.
Smart Images

Figure CN224675005U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging material processing technology, specifically a packaging material cutting device. Background Technology
[0002] In the field of commodity production and distribution, packaging materials are widely used, covering various types such as paper, plastic, and cloth. Different commodities have significant differences in the size and shape requirements of packaging materials. In order to meet the needs of standardized and efficient packaging, it is necessary to use specialized cutting equipment to precisely process packaging materials to adapt to the packaging specifications of various commodities.
[0003] Existing cutting devices can perform batch cutting of packaging materials, improving cutting efficiency and reducing the labor intensity of manual operation to some extent. However, these devices have poor adaptability to different materials, requiring the replacement of blade sets when cutting different materials, which is time-consuming, labor-intensive, and slows down work efficiency. Therefore, we provide a packaging material cutting device to solve these problems. Utility Model Content
[0004] Technical problem solved: This utility model proposes a packaging material cutting device, which solves the problems of long time consumption and frequent operation interruption in traditional devices by cooperating with the rotating rod, cutting blade, positioning column and positioning hole.
[0005] Technical Solution: To achieve the above objectives, this utility model provides the following technical solution: a packaging material cutting device, including a cutting pad, a cutting mechanism above the cutting pad, the cutting mechanism including a connecting plate, positioning holes, and a rhomboid groove, two mutually symmetrical sliding frames fixedly connected to the lower surface of the connecting plate, longitudinal grooves opened on the side of the two sliding frames that are close to each other, a hydraulic telescopic rod fixedly installed in the middle part of the lower surface of the connecting plate, a first lifting plate fixedly connected to the output end of the hydraulic telescopic rod, two mutually symmetrical sliding plates fixedly connected to the lower surface of the first lifting plate, a rotating hole opened on the lower part of the side of the two sliding plates that are close to each other, a rotating rod rotatably connected to the two rotating holes, and four equidistant concentric cutting blades fixedly installed on the outer surface of the rotating rod; An elastic element is fixedly connected to the rear side wall of the prismatic groove, and a prismatic slider is fixedly connected to the front end of the elastic element. A pull-out plate is fixedly connected to the front of the prismatic slider, and four equidistant and concentric positioning posts are fixedly connected to the back of the pull-out plate.
[0006] Furthermore, a support frame is fixedly installed on the lower surface of the cutting pad, and the outer surfaces of the two slide plates are slidably connected to the inner sidewall of the longitudinal slide groove. The positioning hole is opened on the front of the front slide plate.
[0007] Furthermore, the prismatic groove is formed at the front end of the rotating rod, and the outer surface of the prismatic slider is slidably connected to the inner sidewall of the prismatic groove.
[0008] Furthermore, the four positioning posts are respectively aligned with the four cutting blades front and back, and when the four positioning posts and the four cutting blades are fixed, they are all located directly above, directly below, directly to the left, and directly to the right of the central axis of the rotating rod, respectively, and the rear ends of the four positioning posts are respectively inserted into the positioning holes.
[0009] Furthermore, a material positioning mechanism is provided above the cutting mechanism. The material positioning mechanism includes a connecting frame and a second lifting plate. The lower surface of the connecting frame is fixedly connected to the upper surface of the connecting plate. The upper surface of the connecting frame is provided with two sets of mutually symmetrical guide holes.
[0010] Furthermore, the two sets of guide holes are located on the left and right sides of the cutting mechanism, respectively. A servo motor is fixedly installed on the upper surface of the connecting frame, and a threaded rod is fixedly installed at the output end of the servo motor. A limit block is fixedly connected to the top end of the threaded rod, and a threaded hole is opened on the upper surface of the second lifting plate.
[0011] Furthermore, the inner wall of the threaded hole is threadedly connected to the outer wall of the threaded rod, and two sets of mutually symmetrical lifting rods are fixedly connected to the lower surface of the second lifting plate. The bottom ends of the two sets of lifting rods pass through two sets of mutually symmetrical guide holes and are fixedly connected to pressure plates.
[0012] Beneficial effects: Compared with the prior art, this packaging material cutting device has the following beneficial effects: I. This packaging material cutting device, through the cooperative structure of the rotating rod, cutting blade, positioning pin, and positioning hole, achieves rapid switching of the cutting blade angle. There is no need to replace the entire blade assembly; simply pull out the pull plate to disengage the positioning pin from the positioning hole, and rotate the rotating rod to change the cutting blade at different angles. It is suitable for cutting various packaging materials such as rigid plastics and flexible fabrics. The switching process is simple and easy to operate, solving the problems of time-consuming blade assembly replacement and frequent operation interruptions in traditional devices, and significantly improving the equipment's adaptability to multi-category production.
[0013] Second, this packaging material cutting device achieves precise fixing of materials during the cutting process through the linkage design of the pressure plate driven by the servo motor and the hydraulic telescopic rod. The servo motor controls the pressure of the pressure plate through the threaded rod, which can be flexibly adjusted according to the material thickness to ensure that the material can be firmly fixed from thin paper to thick cardboard. This effectively avoids the displacement of materials due to cutting force, solves the problems of rough edges and dimensional deviations that are easy to occur when cutting with traditional devices, and greatly improves the finished product qualification rate. Attached Figure Description
[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.
[0015] Figure 1 This is a three-dimensional front view structural diagram of the present invention; Figure 2 This is a three-dimensional front view exploded view of the present invention; Figure 3 This is a three-dimensional structural exploded view of the cutting mechanism of this utility model; Figure 4 This is a three-dimensional structural exploded view of the material positioning mechanism of this utility model; Figure 5 This utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.
[0016] In the diagram: 1. Cutting mat; 2. Support frame; 3. Cutting mechanism; 301. Connecting plate; 302. Sliding frame; 303. Longitudinal groove; 304. Hydraulic telescopic rod; 305. First lifting plate; 306. Slide plate; 307. Rotating hole; 308. Rotating rod; 309. Cutting blade; 310. Positioning hole; 311. Prismatic groove; 312. Elastic element; 313. Prismatic slider; 314. Pull-out plate; 315. Positioning post; 4. Material positioning mechanism; 401. Connecting frame; 402. Guide hole; 403. Servo motor; 404. Threaded rod; 405. Limiting block; 406. Second lifting plate; 407. Threaded hole; 408. Lifting rod; 409. Pressure plate. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] The servo motor 403 and hydraulic telescopic rod 304 in this utility model are common electrical and hydraulic devices in the prior art. This application will not elaborate on their models or internal structures.
[0019] like Figure 1-5As shown, this utility model provides a technical solution: a packaging material cutting device, including a cutting pad 1, a cutting mechanism 3 above the cutting pad 1, the cutting mechanism 3 including a connecting plate 301, positioning holes 310, and a rhomboid groove 311, two mutually symmetrical sliding frames 302 are fixedly connected to the lower surface of the connecting plate 301, and longitudinal grooves 303 are opened on the side of the two sliding frames 302 that are close to each other, a hydraulic telescopic rod 304 is fixedly installed in the middle part of the lower surface of the connecting plate 301, a first lifting plate 305 is fixedly connected to the output end of the hydraulic telescopic rod 304, two mutually symmetrical sliding plates 306 are fixedly connected to the lower surface of the first lifting plate 305, a rotating hole 307 is opened on the lower part of the side of the two sliding plates 306 that are close to each other, a rotating rod 308 is rotatably connected to the two rotating holes 307, and four equidistant concentric cutting blades 309 are fixedly installed on the outer surface of the rotating rod 308, and the rhomboid groove 311. An elastic element 312 is fixedly connected to the rear side wall of the cutting pad 1. A prismatic slider 313 is fixedly connected to the front end of the elastic element 312. A pull-out plate 314 is fixedly connected to the front of the prismatic slider 313. Four equidistant and concentric positioning posts 315 are fixedly connected to the back of the pull-out plate 314. A support frame 2 is fixedly installed on the lower surface of the cutting pad 1. The outer surfaces of the two sliding plates 306 are slidably connected to the inner side wall of the longitudinal slide groove 303. A positioning hole 310 is opened on the front of the front sliding plate 306. A prismatic slide groove 311 is opened at the front end of the rotating rod 308. The outer surface of the prismatic slider 313 is slidably connected to the inner side wall of the prismatic slide groove 311. The four positioning posts 315 are respectively aligned with the four cutting blades 309. When the four positioning posts 315 and the four cutting blades 309 are fixed, they are all located directly above, directly below, directly to the left, and directly to the right of the central axis of the rotating rod 308. The rear ends of the four positioning posts 315 are respectively inserted into the interior of the positioning hole 310.
[0020] Select a suitable cutting blade 309 based on the material properties, pull the pull plate 314 forward, causing the prismatic slider 313 to move forward along the prismatic groove 311, disengaging the positioning pin 315 from the positioning hole 310. Then, rotate the rotating rod 308, adjusting the angle of the cutting blade 309 through the rotation of the rotating hole 307. Once the target cutting blade 309 is aligned with the cutting position, release the pull plate 314, and the elastic element 312 resets, pushing the positioning pin 315 into the corresponding positioning hole 310, thus locking the angle of the cutting blade 309. After confirming the material is securely fixed and the angle of the cutting blade 309 is adjusted, activate the hydraulic telescopic rod 304, pushing its output end... The first lifting plate 305 moves downward, and the slide plate 306 slides down synchronously along the longitudinal groove 303 of the sliding frame 302, causing the rotating rod 308 to drive the cutting blade 309 to press vertically against the material surface. After the cutting blade 309 completes the cutting, the hydraulic telescopic rod 304 retracts, causing the cutting blade 309 to return to its original position. Then, the servo motor 403 reverses to raise the pressure plate 409, completing a single cutting cycle. It meets the cutting needs of various packaging materials such as hard plastics and flexible fabrics. The switching process is simple and easy to operate, solving the problems of long time-consuming blade replacement and frequent operation interruptions in traditional devices, and significantly improving the equipment's adaptability to multi-category production.
[0021] A material positioning mechanism 4 is provided above the cutting mechanism 3. The material positioning mechanism 4 includes a connecting frame 401 and a second lifting plate 406. The lower surface of the connecting frame 401 is fixedly connected to the upper surface of the connecting plate 301. The upper surface of the connecting frame 401 has two sets of symmetrical guide holes 402, which are located on the left and right sides of the cutting mechanism 3, respectively. A servo motor 403 is fixedly installed on the upper surface of the connecting frame 401. A threaded rod 404 is fixedly installed at the output end of the servo motor 403. A limit block 405 is fixedly connected to the top end of the threaded rod 404. A threaded hole 407 is provided on the upper surface of the second lifting plate 406. The inner wall of the threaded hole 407 is threadedly connected to the outer wall of the threaded rod 404. Two sets of symmetrical lifting rods 408 are fixedly connected to the lower surface of the second lifting plate 406. The bottom ends of the two sets of lifting rods 408 pass through the two sets of symmetrical guide holes 402 and are fixedly connected to a pressure plate 409.
[0022] By laying the packaging material to be cut flat on the cutting mat 1, the servo motor 403 in the material positioning mechanism 4 is activated first. Its output end drives the threaded rod 404 to rotate. Through the threaded engagement of the threaded hole 407 and the threaded rod 404, the second lifting plate 406 descends vertically along the guide hole 402, so that the pressure plate 409 at the bottom of the lifting rod 408 presses the material surface, providing a stable foundation for subsequent cutting. This effectively avoids material displacement due to cutting force, solves the problem of burrs and dimensional deviations that are easy to occur when cutting with traditional devices, and greatly improves the finished product qualification rate.
[0023] Working principle: In use, the packaging material to be cut is first laid flat on the cutting mat 1. The servo motor 403 in the material positioning mechanism 4 is activated first, and its output end drives the threaded rod 404 to rotate. Through the threaded engagement of the threaded hole 407 and the threaded engagement of the threaded rod 404, the second lifting plate 406 descends vertically along the guide hole 402, so that the pressure plate 409 at the bottom of the lifting rod 408 presses the material surface, providing a stable foundation for subsequent cutting. With the material in a fixed state, the appropriate angle of the cutting blade 309 is selected according to the material characteristics, and the pull plate 314 is pulled forward, which drives the prismatic slider 313 to move forward along the prismatic groove 311, so that the positioning post 315 disengages from the positioning hole 310. At this time, the rotating rod 308 is rotated, and the rotation hole 307 is rotated. The rotation of the cutting blade 309 is used to adjust its angle. When the target cutting blade 309 is aligned with the cutting position, the pull plate 314 is released, the elastic element 312 resets and pushes the positioning pin 315 into the corresponding positioning hole 310, thus locking the angle of the cutting blade 309. After confirming that the material is firmly fixed and the angle of the cutting blade 309 is adjusted, the hydraulic telescopic rod 304 is activated. Its output end pushes the first lifting plate 305 downward, and the slide plate 306 slides down synchronously along the longitudinal groove 303 of the sliding frame 302, so that the rotating rod 308 drives the cutting blade 309 to press vertically against the material surface. After the cutting blade 309 completes the cutting, the hydraulic telescopic rod 304 retracts and drives the cutting blade 309 to reset. Then, the servo motor 403 reverses to raise the pressure plate 409, completing a single cutting cycle.
[0024] In the description of this utility model, it should be understood that the terms "left", "right", "up", "down", "top", "bottom", "front", "back", "inner", "outer", "back", "middle", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] However, the above description is only a specific embodiment of this utility model and should not be construed as limiting the scope of implementation of this utility model. Therefore, any substitution of equivalent components or equivalent changes and modifications made in accordance with the scope of protection of this utility model should still fall within the scope of the claims of this utility model.
Claims
1. A packaging material cutting device, comprising a cutting mat (1), characterized in that: A cutting mechanism (3) is provided above the cutting pad (1). The cutting mechanism (3) includes a connecting plate (301), a positioning hole (310), and a prismatic groove (311). Two mutually symmetrical sliding frames (302) are fixedly connected to the lower surface of the connecting plate (301). Longitudinal grooves (303) are provided on the side of the two sliding frames (302) that are close to each other. A hydraulic telescopic rod (304) is fixedly installed in the middle part of the lower surface of the connecting plate (301). A first lifting plate (305) is fixedly connected to the output end of the hydraulic telescopic rod (304). Two mutually symmetrical sliding plates (306) are fixedly connected to the lower surface of the first lifting plate (305). Rotating holes (307) are provided on the lower part of the side of the two sliding plates (306) that are close to each other. Rotating rods (308) are rotatably connected to the two rotating holes (307). Four equidistant and concentric cutting blades (309) are fixedly installed on the outer surface of the rotating rods (308). An elastic element (312) is fixedly connected to the rear side wall of the prismatic groove (311), and a prismatic slider (313) is fixedly connected to the front end of the elastic element (312). A pull-out plate (314) is fixedly connected to the front of the prismatic slider (313), and four equidistant and concentric positioning posts (315) are fixedly connected to the back of the pull-out plate (314).
2. The packaging material cutting device according to claim 1, characterized in that: The lower surface of the cutting pad (1) is fixedly installed with a support frame (2), and the outer surfaces of the two sliding plates (306) are slidably connected to the inner sidewall of the longitudinal slide groove (303). The positioning hole (310) is opened on the front of the front sliding plate (306).
3. The packaging material cutting device according to claim 2, characterized in that: The prismatic groove (311) is located at the front end of the rotating rod (308), and the outer surface of the prismatic slider (313) is slidably connected to the inner sidewall of the prismatic groove (311).
4. The packaging material cutting device according to claim 3, characterized in that: The four positioning posts (315) are aligned with the four cutting blades (309) respectively, and when the four positioning posts (315) and the four cutting blades (309) are fixed, they are located directly above, directly below, directly to the left and directly to the right of the central axis of the rotating rod (308). The rear ends of the four positioning posts (315) are respectively inserted into the interior of the positioning holes (310).
5. A packaging material cutting device according to claim 4, characterized in that: A material positioning mechanism (4) is provided above the cutting mechanism (3). The material positioning mechanism (4) includes a connecting frame (401) and a second lifting plate (406). The lower surface of the connecting frame (401) is fixedly connected to the upper surface of the connecting plate (301). Two sets of mutually symmetrical guide holes (402) are opened on the upper surface of the connecting frame (401).
6. A packaging material cutting device according to claim 5, characterized in that: The two sets of guide holes (402) are located on the left and right sides of the cutting mechanism (3), respectively. A servo motor (403) is fixedly installed on the upper surface of the connecting frame (401). A threaded rod (404) is fixedly installed at the output end of the servo motor (403). A limit block (405) is fixedly connected to the top end of the threaded rod (404). A threaded hole (407) is opened on the upper surface of the second lifting plate (406).
7. A packaging material cutting device according to claim 6, characterized in that: The inner wall of the threaded hole (407) is threadedly connected to the outer wall of the threaded rod (404). The lower surface of the second lifting plate (406) is fixedly connected with two sets of mutually symmetrical lifting rods (408). The bottom ends of the two sets of lifting rods (408) pass through two sets of mutually symmetrical guide holes (402) respectively, and are fixedly connected with pressure plates (409).