A seasoning packet dividing mechanism
By introducing adjustable limit components and staggered feeding methods into the slitting equipment, the problem of adapting traditional equipment to packaging materials of different specifications has been solved, achieving high-precision and high-efficiency slitting results and improving the flexibility and stability of the production line.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SICHUAN MEIWEIYUAN FOOD CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-06-16
Smart Images

Figure CN224360264U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of food packaging equipment technology, and in particular to a seasoning packet cutting mechanism. Background Technology
[0002] In the production process of food, condiments, and other industries, the packaging and cutting of seasoning packets is an extremely important step. With the increasing diversification of market demand, the requirements for the specifications of seasoning packet packaging materials are also becoming more and more diverse, including various dimensions such as width, thickness, and diameter.
[0003] Taking common slitting equipment as an example, its structure is relatively fixed. In terms of positioning, it often uses fixed-interval positioning components. When dealing with packaging materials of varying widths, it is difficult to accurately fix the material position, causing the packaging material to easily shift during the slitting process, severely affecting slitting accuracy. Regarding slitting position adjustment, traditional equipment lacks a flexible adjustment mechanism, unable to adapt to the slitting needs of different packaging materials, such as slitting wide materials into narrow strips of different numbers, or adapting to slitting materials of different thicknesses. This results in material waste and uneven slitting. Furthermore, its feed channel size is fixed. When packaging materials of different widths pass through, excessively narrow materials tend to wobble in the channel, while excessively wide materials may jam or even deform, greatly affecting the continuity and stability of the slitting process.
[0004] Chinese patent document CN202420304961 discloses a bottom material slitting device, which attempts to solve some problems in the slitting process. It adjusts the cutting width of the bottom material by sliding the spacing between the cutting blades, which are sleeved on the outside of an adjusting rod. However, the overall adjustable range of this device is limited, and its adaptability to other specifications such as roll diameter and thickness of packaging materials is poor. When dealing with packaging materials of different roll diameters, its feeding and receiving mechanisms cannot be automatically adjusted, still requiring frequent manual intervention. For materials with large thickness differences, it is difficult to ensure the matching of pressure and speed during the slitting process, easily leading to unstable slitting quality and failing to fully meet the slitting needs of diverse packaging materials. Utility Model Content
[0005] In view of this, the present invention provides a seasoning packet cutting mechanism to solve the problem that traditional technology, due to its fixed structure and lack of adjustable adaptability design, is unable to meet the cutting needs of packaging materials of different specifications.
[0006] This utility model embodiment provides a seasoning packet cutting mechanism, including: a frame; a feeding section disposed at one end of the frame and including a first feeding roller for mounting packaging materials; a cutting section disposed at the other end of the frame and including a cutting head that can move laterally along the frame; and a conveying section disposed between the feeding section and the cutting section, including at least one set of conveying components for conveying the packaging materials to the cutting section for cutting; wherein, the first feeding roller is further provided with limiting components for limiting the position of the packaging materials and adapting to different sizes of the packaging materials, and each conveyed packaging material is limited in position and adapted to different sizes of the packaging materials by a set of the limiting components.
[0007] Preferably, the limiting assembly includes a bushing, a limiting sleeve, and a mounting sleeve that can rotate based on the bushing via a bearing;
[0008] The limiting sleeve and the mounting sleeve are disposed on the bushing at intervals, and there is an installation space for packaging materials between the limiting sleeve and the mounting sleeve;
[0009] The simultaneous installation and cutting of multiple packaging materials is achieved through multiple sets of limiting components.
[0010] Preferably, the installation space is provided on the installation sleeve, and the installation sleeve is further provided with a limiting plate at the end away from the limiting sleeve;
[0011] The limiting sleeve is fastened to the bushing by a limiting screw.
[0012] Preferably, the feeding section further includes a second feeding roller spaced apart from the first feeding roller;
[0013] When the first feeding roller and the second feeding roller are used simultaneously, the packaging materials on the first feeding roller and the second feeding roller are arranged in an alternating manner by the limiting component.
[0014] Preferably, the material conveying section includes a first material conveying assembly and a second material conveying assembly arranged at intervals on the frame;
[0015] The first feeding component is used to receive the packaging material, and the second feeding component is used to output the packaging material.
[0016] Preferably, the first feeding assembly includes a first feeding roller and a second feeding roller driven by a first drive motor;
[0017] A feeding space for the packaging material is provided between the first feeding roller and the second feeding roller.
[0018] Preferably, the second material conveying assembly includes a first discharge roller and a second discharge roller driven by a second motor;
[0019] A discharge space for the packaging material is provided between the first discharge roller and the second discharge roller.
[0020] Preferably, the cutting section is located at the discharge end of the frame;
[0021] The slitting section includes a slide rail and a slitting head that moves on the slide rail via a sliding block.
[0022] Preferably, the frame is further provided with a discharge trough plate at the discharge end, and the discharge trough plate is provided with a plurality of installation slots at intervals;
[0023] Some of the mounting grooves are also provided with limiting rods, and a discharge channel for the packaging material is formed between two of the limiting rods;
[0024] The installation groove is fitted with limiting rods at different intervals to accommodate packaging materials of different sizes for discharge.
[0025] Preferably, the front end of the discharge trough plate is further provided with a cutting plate, and the cutting plate is provided with a cutting groove.
[0026] The seasoning packet cutting mechanism provided by this utility model has the following beneficial effects:
[0027] This invention addresses the shortcomings of traditional equipment, such as fixed structures and lack of adjustable adaptability. The seasoning packet slitting mechanism utilizes an innovative design with multiple adjustable limiting components, a movable slitting head, and an adjustable discharge channel to effectively solve the problem of slitting packaging materials of different specifications. The limiting components, employing bushings, limiting sleeves, and limiting screws, allow for quick adjustment of the spacing to accommodate materials of varying widths, preventing misalignment. Multiple limiting components, combined with staggered feeding by dual feeding rollers, enable simultaneous slitting of multiple material specifications, reducing the frequency of component replacement. The sliding rail and sliding block structure of the slitting section allows the slitting head to flexibly adjust its slitting position to meet diverse slitting needs. The mounting slot and limiting rod of the discharge chute plate allow for adjustment of the discharge channel width as needed, ensuring smooth discharge of materials of varying widths. Therefore, this mechanism significantly improves slitting accuracy and production efficiency, reduces maintenance costs, and greatly enhances the equipment's adaptability to diverse packaging materials. Attached Figure Description
[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and these are all within the protection scope of this utility model.
[0029] Figure 1 This is a schematic diagram of a seasoning packet cutting mechanism;
[0030] Figure 2 This is a structural diagram of the material conveying section;
[0031] Figure 3 This is a schematic diagram of the structure of the first feed roller;
[0032] Figure 4 This is a schematic diagram of the slitting section;
[0033] Figure 5 This is a schematic diagram of the cross-sectional structure of the first feed roller;
[0034] Parts and component numbers in the diagram:
[0035] 100-Frame, 110-Discharge end, 120-Discharge trough plate, 121-Mounting groove, 122-Limit rod, 123-Discharge channel, 130-Slitting plate, 131-Slitting groove;
[0036] 210-First feed roller, 220-Second feed roller, 230-Limiting assembly, 231-Bushing, 232-Limiting sleeve, 233-Mounting sleeve, 234-Mounting space, 235-Limiting plate, 236-Limiting screw, 237-Bearing, 240-End limiting sleeve;
[0037] 300 - Sliding section, 310 - Slide rail, 320 - Sliding block, 330 - Sliding head;
[0038] 410-First feeding assembly, 411-First drive motor, 412-First feeding roller, 413-Second feeding roller, 420-Second feeding assembly, 421-Second motor, 422-First discharge roller, 423-Second discharge roller, 430-Tensioning assembly, 431-Tensioning rod, 432-Rotating seat;
[0039] 500 - Packaging materials. Detailed Implementation
[0040] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, in this document, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. Unless otherwise specified, embodiments of the present invention and the various features thereof can be combined with each other, all within the protection scope of the present invention.
[0041] Example 1
[0042] Please see Figure 1 This utility model provides a seasoning packet cutting mechanism. In the food packaging field, food packaging bags or seasoning packets are usually rolled into rollers for easy storage and transportation. When these packaging materials are needed, workers cut them to meet specific food packaging requirements. However, since different types of food require different sizes of packaging bags or seasoning packets, precise adjustments to the corresponding parts of the equipment are required during the cutting process. Unfortunately, current cutting equipment on the market often has a fixed structure and lacks sufficient flexibility, making it difficult to adapt to the cutting needs of various packaging materials. Therefore, for the food packaging industry, developing a cutting device that can be flexibly adjusted according to the needs of different packaging materials is particularly important.
[0043] Therefore, this embodiment provides an adjustable cutting mechanism, which achieves precise cutting of packaging materials of different sizes by setting multiple adjustable and replaceable components.
[0044] Please see Figure 1In this embodiment, the slitting mechanism includes a frame 100, a slitting section, a conveying section, and a feeding section; the feeding section is disposed at one end of the frame 100 and includes a first feeding roller 210 for mounting packaging materials; the slitting section is disposed at the other end of the frame 100 and includes a slitting head 330 that can move laterally along the frame 100; the conveying section is disposed between the feeding section and the slitting section and includes at least one set of conveying components for conveying the packaging materials to the slitting section for slitting; wherein, the first feeding roller 210 is further provided with a limiting component 230 for limiting the position of the packaging materials and adapting to different packaging material sizes, and each conveyed packaging material is limited in position and adapted to different packaging material sizes by a set of the limiting components 230.
[0045] In use, packaging material 500 is mounted on the first feeding roller 210, and its position and quantity are adjusted by the limiting component 230 to ensure that the packaging material 500 enters the conveying section in the correct posture. The conveying component in the conveying section smoothly transports the packaging material 500 to the slitting section according to the preset speed and tension. When the packaging material 500 is transported to the preset position, the slitting head 330 moves laterally to precisely cut the packaging material 500 according to the required size, dividing it into several independent seasoning packets or packaging bags. Since the position and cutting parameters of the slitting head 330 can be flexibly adjusted according to actual needs, this mechanism can adapt to various specifications of packaging material 500.
[0046] Furthermore, during the installation of the packaging material 500, the limiting component 230 first needs to be installed on the first feed roller 210. This process includes accurately placing the limiting component 230 in the appropriate position and ensuring it is securely fixed. The next step is to adjust the position of the limiting component 230 to accommodate different sizes of packaging material 500. After these preparations are completed, the packaging material 500 can be installed on the adjusted limiting component 230. In this way, it can be ensured that the packaging material 500 can be correctly installed and can adapt to various packaging size requirements, thereby achieving the installation and adaptation of packaging materials 500 of different sizes.
[0047] Further, please see Figure 3 and Figure 5The limiting component 230 includes a bushing 231, a limiting sleeve 232, and a mounting sleeve 233 that can rotate based on the bushing 231 via a bearing 237; the limiting sleeve 232 and the mounting sleeve 233 are arranged at intervals on the bushing 231, and an installation space 234 for the packaging material 500 is provided between the limiting sleeve 232 and the mounting sleeve 233; wherein, multiple sets of the limiting components 230 are used to achieve simultaneous installation and cutting of multiple packaging materials 500.
[0048] The installation space 234 is provided on the installation sleeve 233, and the installation sleeve 233 is also provided with a limiting plate 235 at the end away from the limiting sleeve 232; the limiting sleeve 232 is fastened to the bushing 231 by a limiting screw 236.
[0049] In use, the bushing 231 is first installed on the first feeding roller 210; the length of the bushing 231 can be adjusted as needed; for example, when installing only one packaging material 500, it is first installed using a longer bushing 231, which restricts the position of the bushing 231 on which the mounting sleeve 233 is installed; then, a pair of bearings 237 are disposed at both ends of the bushing 231, and the mounting sleeve 233 is then disposed on the pair of bearings 237, allowing the mounting sleeve 233 to rotate; then the packaging material 500 is installed... The packaging material 500 is installed in the mounting space 234 on the mounting sleeve 233, with one end restricted by a limiting block; then the limiting sleeve 232 is installed on the bushing 231 and fixed on the bushing 231 by the limiting screw 236, and there is a gap between the limiting sleeve 232 and the mounting sleeve 233, so that the packaging material 500 can rotate without being restricted by the limiting sleeve 232 and the limiting block, so that the packaging material 500 can rotate based on the bearing 237 and perform normal feeding operations during the cutting operation.
[0050] Furthermore, the end of the first feeding rod is also provided with an end limiting sleeve 240 to restrict the movement of the bushing 231, the mounting sleeve 233 and the limiting sleeve 232.
[0051] Please see Figure 1 and Figure 2 Furthermore, the feeding unit also includes a second feeding roller 220 spaced apart from the first feeding roller 210; when the first feeding roller 210 and the second feeding roller 220 are used simultaneously, the packaging material 500 on the first feeding roller 210 and the second feeding roller 220 is arranged in an alternating manner by the limiting component 230.
[0052] Furthermore, if multiple packaging materials 500 can be set up and cut simultaneously, but since each packaging material 500 requires a set of limiting components 230, the installation of the packaging materials 500 on the first feeding roller 210 would be restricted. Therefore, a second feeding roller 220 can also be set up. In use, the packaging materials 500 on the first feeding roller 210 and the second feeding roller 220 are staggered, so that they enter the conveying section alternately and are cut. This can effectively improve the efficiency of the cutting operation and reduce the frequency of adjustment of the limiting components 230 due to an excessive number of packaging materials 500. This staggered feeding method can not only optimize the workload distribution of the conveying section, but also reduce the possibility of jamming or misalignment during equipment operation. In addition, in actual operation, users can flexibly adjust the quantity and type of packaging materials 500 on the first feeding roller 210 and the second feeding roller 220 according to specific production needs, thereby further improving the adaptability and flexibility of the production line. This design also facilitates subsequent maintenance and component replacement, ensuring long-term stable operation.
[0053] Further, please see Figure 2 The material conveying section includes a first material conveying component 410 and a second material conveying component 420 arranged at intervals on the frame 100; the first material conveying component 410 is used to receive the packaging material 500, and the second material conveying component 420 is used to output the packaging material 500.
[0054] The first feeding assembly 410 includes a first feeding roller 412 and a second feeding roller 413 driven by a first drive motor 411; a feeding space for the packaging material 500 is provided between the first feeding roller 412 and the second feeding roller 413.
[0055] The second feeding assembly 420 includes a first discharge roller 422 and a second discharge roller 423 driven by a second motor 421; a discharge space for the packaging material 500 is provided between the first discharge roller 422 and the second discharge roller 423.
[0056] In use, the packaging material 500 is guided from the first feeding roller 210 or the second feeding roller 220 into the feeding space of the first conveying assembly 410. The first drive motor 411 drives the first feeding pressure roller 412 and the second feeding pressure roller 413 to rotate, thereby achieving stable conveying of the packaging material 500. During conveying, the gap between the first feeding pressure roller 412 and the second feeding pressure roller 413 can be adjusted according to the thickness of the packaging material 500 to ensure the accuracy and stability of the conveying. Subsequently, the packaging material 500 is transferred to the second conveying assembly 420, where the first discharge pressure roller 422 and the second discharge pressure roller 423 work together under the drive of the second motor 421 to smoothly output the material to the next process. This design not only effectively avoids material deviation or slippage during conveying but also significantly improves overall production efficiency while reducing the need for manual intervention, ensuring the continuity and reliability of the production line.
[0057] Further, please see Figure 1 and Figure 4 The slitting section is located at the discharge end 110 of the frame 100; the slitting section includes a slide rail 310 and a slitting head 330 that moves on the slide rail 310 via a sliding block 320.
[0058] The frame 100 is also provided with a discharge trough plate 120 at the discharge end 110. The discharge trough plate 120 is provided with a plurality of installation slots 121 at intervals. Some of the installation slots 121 are also provided with limiting rods 122, and a discharge channel 123 of the packaging material 500 is formed between two pairs of limiting rods 122. The installation slots 121 are equipped with limiting rods 122 at different intervals to accommodate the discharge of packaging materials 500 of different sizes.
[0059] The front end of the discharge trough plate 120 is also provided with a cutting plate 130, and the cutting plate 130 is provided with a cutting groove 131.
[0060] In use, the dimensions of the discharge channel 123 are adjusted according to the dimensions of the packaging material 500 to match the width of the packaging material 500. When adjusting the width of the discharge channel 123, a limiting rod 122 is installed in the mounting groove 121, such that the limiting rod 122 and the side of the discharge trough plate 120 and / or the width between two limiting rods 122 are adapted to the width of the packaging material 500. Then, the packaging material 500 is discharged. Furthermore, sensors 140 are spaced apart at the bottom of the discharge trough plate 120 to detect the packaging material 500. The discharge position is set to 0 to control the device to stop or start the feeding operation; when the sensor 140 detects the packaging material 500 to the preset detection position of the sensor 140, the feeding stops, and the slitting head 330 moves on the slide rail 310 based on the sliding block 320, so that the slitting head 330 cuts the packaging material 500; during the cutting, the bottom of the slitting head 330 contacts the cutting groove 131 of the slitting plate 130; after the cutting is completed, the feeding is restarted, and this cutting action is repeated to realize the continuous cutting operation of the packaging material 500.
[0061] Furthermore, the movement of the sliding head on the slide rail 310 is based on the principle of a rodless cylinder. Efficient linear motion is achieved through the cooperation of the slide rail 310 and the sliding block 320. The rodless cylinder uses air pressure to drive the piston, which reciprocates as air alternately enters the left and right chambers within the cylinder. The piston's movement transmits power to the sliding block 320 via magnetic coupling or mechanical transmission. The slide rail 310 provides guidance and support for the sliding block 320, ensuring its smooth sliding in a predetermined direction, reducing friction and wobbling during movement, and simultaneously sharing the load pressure. This allows the sliding block to accurately and stably complete linear displacement under the drive of the rodless cylinder, meeting the high-precision operation requirements of the device in automated production, material handling, and other scenarios.
[0062] During the slitting process, the slitting head 330 can adjust its moving speed and force as needed to ensure slitting accuracy and stability. Furthermore, the design of the slide rail 310 ensures the smooth operation of the slitting head 330, avoiding cutting errors caused by vibration or offset. To improve the applicability of the equipment, the slitting head 330 is also equipped with a replaceable blade assembly, allowing users to select the appropriate blade type according to different packaging materials 500, thereby further optimizing the slitting effect. Simultaneously, the slitting groove 131 on the slitting plate 130 is specially treated to effectively reduce friction between the blade and the slitting plate 130, extending the service life of the equipment.
[0063] Further, please see Figure 1 and Figure 2A tensioning assembly 430 is also provided between the first feeding assembly 410 and the second feeding assembly 420. The tensioning assembly 430 includes a rotating base 432 disposed on both sides of the frame 100 and a tensioning rod 431 that can rotate based on the frame 100.
[0064] In use, by rotating the tension rod 431, the tension rod 431 comes into contact with the packaging material 500 under a certain pressure, and the packaging material 500 is compressed; this increases the tension of the packaging material 500 during the conveying process, thereby avoiding the impact on cutting accuracy due to material looseness or excessive tightness. The design of the rotating base 432 allows the tension rod 431 to be flexibly adjusted in angle and position according to actual needs, ensuring that the packaging material 500 maintains a uniform tension distribution throughout the entire conveying process.
[0065] In addition, the tensioning assembly 430 is equipped with a locking element. Once the tensioning rod 431 is adjusted to the appropriate position, it can be fixed by the locking element to prevent accidental displacement during operation. This design not only improves the stability of equipment operation but also significantly reduces material waste and slitting quality problems caused by uneven tension. Meanwhile, the surface of the tensioning rod 431 undergoes special treatment, exhibiting high wear resistance and corrosion resistance to meet the long-term use requirements of different working environments.
[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A seasoning packet cutting mechanism, characterized in that, include: Rack (100); The feeding section is located at one end of the frame (100) and includes a first feeding roller (210) for mounting packaging material (500). The slitting section is located at the other end of the frame (100) and includes a slitting head (330) that can move laterally along the frame (100). A feeding section is disposed between the feeding section and the cutting section, and includes at least one feeding assembly for feeding the packaging material (500) to the cutting section for cutting; The first feeding roller (210) is also provided with a limiting component (230) for limiting the position of the packaging material (500) and adapting to different sizes of the packaging material (500). Each conveying packaging material (500) is limited in position and adapted to different sizes of the packaging material (500) by a set of the limiting components (230).
2. The seasoning packet cutting mechanism according to claim 1, characterized in that, The limiting assembly (230) includes a bushing (231), a limiting sleeve (232), and a mounting sleeve (233) that can rotate based on the bushing (231) via a bearing. The limiting sleeve (232) and the mounting sleeve (233) are disposed on the bushing (231) at intervals, and an installation space (234) for the packaging material (500) is provided between the limiting sleeve (232) and the mounting sleeve (233). The simultaneous installation and cutting of multiple packaging materials (500) is achieved by using multiple sets of limiting components (230).
3. The seasoning packet cutting mechanism according to claim 2, characterized in that, The installation space (234) is provided on the installation sleeve (233), and the installation sleeve (233) is also provided with a limiting plate (235) at the end away from the limiting sleeve (232). The limiting sleeve (232) is fastened to the bushing (231) by the limiting screw (236).
4. The seasoning packet cutting mechanism according to claim 1, characterized in that, The feeding section also includes a second feeding roller (220) that is spaced apart from the first feeding roller (210). When the first feed roller (210) and the second feed roller (220) are used simultaneously, the packaging material (500) on the first feed roller (210) and the second feed roller (220) is arranged in an alternating manner by the limiting component (230).
5. A seasoning packet cutting mechanism according to claim 1, characterized in that, The material conveying section includes a first material conveying assembly (410) and a second material conveying assembly (420) that are spaced apart on the frame (100). The first feeding assembly (410) is used to receive the packaging material (500), and the second feeding assembly (420) is used to output the packaging material (500).
6. A seasoning packet cutting mechanism according to claim 5, characterized in that, The first feeding assembly (410) includes a first feeding roller (412) and a second feeding roller (413) driven by a first drive motor (411). A feeding space for the packaging material (500) is provided between the first feeding roller (412) and the second feeding roller (413).
7. A seasoning packet cutting mechanism according to claim 5, characterized in that, The second material conveying assembly (420) includes a first discharge roller (422) and a second discharge roller (423) driven by a second motor (421). There is a discharge space for the packaging material (500) between the first discharge roller (422) and the second discharge roller (423).
8. A seasoning packet cutting mechanism according to claim 1, characterized in that, The slitting section is located at the discharge end (110) of the frame (100). The slitting section includes a slide rail (310) and a slitting head (330) that moves on the slide rail (310) via a sliding block (320).
9. A seasoning packet cutting mechanism according to claim 1, characterized in that, The frame (100) is also provided with a discharge trough plate (120) at the discharge end (110), and the discharge trough plate (120) is provided with a plurality of installation slots (121) at intervals. The mounting groove (121) is also provided with a limiting rod (122), and a discharge channel (123) for the packaging material (500) is formed between the two limiting rods (122). The installation groove (121) is equipped with limiting rods (122) at different intervals to accommodate packaging materials (500) of different sizes for discharge.