Uniform cutting device for cat food packaging bag processing
By designing clamping and transmission components, and combining a lateral lead screw and induction sensors, the problem of inaccurate positioning during the cutting of cat food packaging bags was solved, achieving both convenience and accuracy in cutting, and improving production efficiency and product quality.
Patent Information
- Application Number
- CN202520290657.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-02-24
AI Technical Summary
In existing technologies, cat food packaging bags are prone to inaccurate cutting positions due to edge curling or rolling during the cutting process, resulting in miscuts and defective products, which affects production efficiency and costs.
The packaging bag is clamped by clamping and transmission components, and the packaging bag is tightened by the upper and lower position plates on the horizontal lead screw. Then, the cutting cylinder drives the blade to cut, and the extrusion roller group ensures the packaging bag moves forward. The cutting position is controlled by the induction sensor to achieve accurate cutting.
This technology enables convenient and accurate cutting of packaging bags, reduces accidental cutting, and improves production efficiency and product quality.
Smart Images

Figure CN223763941U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging bag processing technology, specifically a uniform cutting device for processing cat food packaging bags. Background Technology
[0002] With the development of technology, mechanized bag making machines have gradually become a necessary product in the packaging bag manufacturing industry. When dividing continuous packaging bags into individual bags, a bag cutting device is required.
[0003] While current cutting methods can cut cat food packaging bags, in industrial production, the bags are typically rolled up on conveyor rollers. After being transported to the cutting table, the edges of the bags sometimes curl up or fold over. Because it's an assembly line operation, this frequently leads to miscuts, resulting in many defective products, wasted costs, and reduced production efficiency. Existing technology CN202321513428.7 describes a uniform cutting device for processing cat food packaging bags, which uses two sets of conveyor belts to transport the bags and clamps one end of the bag with a limiting roller and a conveyor roller for cutting. However, this cutting method has a problem: when the cutter moves upwards, it can cause the bag on one side of the conveyor belt to continue feeding, leading to offset of the cutting area and inaccurate cutting position.
[0004] To address these issues, we provide a uniform cutting device for processing cat food packaging bags. Utility Model Content
[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a uniform cutting device for processing cat food packaging bags to solve the technical problem that the two sides are not completely fixed when cutting the packaging bag.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0007] A uniform cutting device for processing cat food packaging bags includes a main frame, on which a clamping component, an extrusion roller assembly, a cutting component, and a transmission component are mounted; the extrusion roller assembly includes an upper extrusion roller and a lower extrusion roller, and multiple sets of the upper and lower extrusion rollers are arranged to extrude the packaging bag.
[0008] The cutting component includes a support plate and a cutting cylinder, with the cylinder body of the cutting cylinder connected to the support plate; a cutting tool is installed on the output end of the cutting cylinder, and the cutting tool is suitable for cutting packaging bags;
[0009] The transmission component includes a transverse lead screw, a nut seat mounted on the transverse lead screw, a frame plate mounted on the nut seat, a transmission cylinder mounted on the frame plate, an upper position plate mounted on the bottom of the transmission cylinder; a lower position plate mounted inside the frame plate, and a sensing sensor mounted inside the lower position plate, the sensing sensor being suitable for sensing packaging bags.
[0010] When the clamping device and the transmission cylinder clamp the packaging bag simultaneously, the cutting cylinder cuts the packaging bag.
[0011] In a further technical solution, the extrusion roller assembly includes two sets of side plates, and the lower extrusion roller and the upper extrusion roller are installed between the two sets of side plates and rotate; and a drive motor is installed on the outer side of one set of side plates, the output end of the drive motor is connected to a set of lower extrusion rollers located on the outer side, and a transmission wheel is installed on the outer side of each lower extrusion roller, and the transmission is connected to the transmission wheel by a transmission belt.
[0012] In a further technical solution, the clamping component includes a fixed bracket, and a clamping cylinder is mounted on the fixed bracket; an upper clamping plate and a lower clamping plate are separately mounted on the upper and lower parts of the fixed bracket; the bottom of the lower clamping plate and the fixed bracket are both fixedly connected to the main frame.
[0013] The output end of the clamping cylinder passes downward through the fixed bracket and is connected to the upper clamping plate.
[0014] In a further technical solution, the upper clamping plate is provided with ear plates at both ends and has connecting holes. A guide rod is installed in the connecting holes, and a connecting spring is installed on the guide rod. One end of the connecting spring is fixedly connected to the fixed bracket, and the other end of the connecting spring is fixedly connected to the ear plate. The top of the guide rod passes through the fixed bracket and is fitted with a limit ring.
[0015] In a further technical solution, two sets of transverse lead screws are provided and located at the bottom of the support plate, and the longitudinal length of the cutter along the cutting direction is greater than the distance between the two sets of transmission cylinders.
[0016] The frame panels are C-shaped, with two sets facing each other towards the opening.
[0017] In a further technical solution, a transverse motor is installed on the side of the transverse lead screw away from the extrusion roller assembly, and the output end of the transverse motor is coaxially arranged with the transverse lead screw.
[0018] A receiving cavity is provided on the main frame between the two sets of horizontal lead screws, and a storage box is placed in the receiving cavity to store the cut packaging bags.
[0019] In a further technical solution, support columns are provided at the four corners of the bottom of the main frame; and an installation port is provided at one end of the clamping member, in which a bearing roller is installed, the bearing roller being suitable for bearing bundles of packaging bags; and two sets of steering rollers are provided at the top of the installation port, with both ends of the steering rollers connected to the main frame.
[0020] Compared with existing technologies, it has the following advantages:
[0021] This invention uses clamping and transmission components to clamp a section of packaging bag. The packaging bag is clamped by upper and lower position plates that move along a horizontal lead screw, tautning the bag. A cutting cylinder then drives a cutter to cut the bag, resulting in convenient and accurate cutting. The extrusion roller assembly ensures the bag moves forward under pressure. A drive motor drives the lower extrusion roller to rotate and advance until the bag is positioned at the lower position plate. When the lower position plate detects an obstruction via a sensor, it activates the transmission cylinder to clamp downwards. The upper and lower position plates clamp one end of the bag, and the horizontal motor is activated, moving the nut seat along the horizontal lead screw to tighten the bag. Attached Figure Description
[0022] Figure 1 This is a front view of the uniform cutting device for processing cat food packaging bags according to this utility model.
[0023] Figure 2 Top view schematic diagram of the uniform cutting device for processing cat food packaging bags according to this utility model. Figure 1 ;
[0024] Figure 3 Top view schematic diagram of the uniform cutting device for processing cat food packaging bags according to this utility model. Figure 2 ;
[0025] Figure 4 This is a schematic diagram of the clamping component structure of this utility model;
[0026] Figure 5 This is a schematic diagram of the external transmission belt on the side plate of this utility model;
[0027] Figure 6 This is a schematic diagram of the lower extrusion roller structure of this utility model;
[0028] Figure 7 This is a schematic diagram of the cutting component structure in this utility model;
[0029] Figure 8 This is a side view of the uniform cutting device for processing cat food packaging bags in this utility model;
[0030] Figure 9Top view of the uniform cutting device for processing cat food packaging bags according to this utility model. Figure 3 ;
[0031] Figure 10 This is a front structural diagram of the uniform cutting device for processing cat food packaging bags according to this utility model.
[0032] In the picture:
[0033] 1. Main frame; 11. Support column; 12. Bearing roller; 13. Guide roller;
[0034] 2. Clamping component; 21. Fixed bracket; 22. Clamping cylinder; 23. Upper clamping plate; 24. Lower clamping plate; 25. Ear plate; 26. Guide rod; 27. Connecting spring; 28. Limiting ring;
[0035] 3. Extrusion roller assembly; 31. Upper extrusion roller; 32. Lower extrusion roller; 33. Side plate; 34. Drive motor; 35. Transmission wheel; 36. Transmission belt;
[0036] 4. Cutting parts; 41. Support plate; 42. Cutting cylinder; 43. Cutting tool;
[0037] 5. Transmission components; 51. Transverse lead screw; 52. Nut seat; 53. Frame plate; 54. Transmission cylinder; 55. Upper position plate; 56. Lower position plate; 57. Sensor; 58. Transverse motor;
[0038] 6. Storage box;
[0039] 100. Packaging bags. Detailed Implementation
[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.
[0041] Example 1
[0042] Please see Figure 1-8 This invention provides a technical solution to address the problem of incomplete fixation on both sides when cutting packaging bags. A uniform cutting device for processing cat food packaging bags includes a main frame 1, on which clamping components 2, a set of extrusion rollers 3, a cutting component 4, and a transmission component 5 are mounted. The extrusion rollers 3 include an upper extrusion roller 31 and a lower extrusion roller 32, with multiple sets of upper and lower extrusion rollers 31 and 32 suitable for extruding the packaging bag 100.
[0043] like Figure 7 As shown, the cutting component 4 includes a support plate 41 and a cutting cylinder 42. The cylinder body of the cutting cylinder 42 is connected to the support plate 41. A cutting tool 43 is installed on the output end of the cutting cylinder 42. The cutting tool 43 is suitable for cutting the packaging bag 100. Vertical guide grooves are provided on the support plate at both ends of the cutting tool for vertical directional sliding of the cutting tool.
[0044] The transmission component 5 includes a transverse lead screw 51, a nut seat 52 mounted on the transverse lead screw 51, a frame plate 53 mounted on the nut seat 52, a transmission cylinder 54 mounted on the frame plate 53, and an upper position plate 55 mounted on the bottom of the transmission cylinder 54; a lower position plate 56 is mounted inside the frame plate 53, and a sensing sensor 57 is mounted inside the lower position plate 56. The sensing sensor 57 is suitable for sensing the packaging bag 100. The sensing sensor can be a photoelectric sensor or an ultrasonic sensor. For example, the photoelectric sensor is the Omron EE-SPY401 miniature photoelectric switch photoelectric sensor or the Omron small ultrasonic sensor E4E2-TS50C1 / E4E2-TS50C2.
[0045] When clamping component 2 and transmission cylinder 54 simultaneously clamp the packaging bag 100, cutting cylinder 42 cuts the packaging bag 100. The transmission cylinder, cutting cylinder, and clamping cylinder are all connected to external air circuits and air sources to ensure effective operation. The actual length of the packaging bag can be controlled by adjusting the rotation time of the horizontal motor to control the travel distance of the nut seat.
[0046] Combination Figure 5 As shown, this embodiment uses three sets of upper and lower extrusion rollers. The lower extrusion roller is driven by an externally installed drive motor, which rotates the lower extrusion roller and moves the packaging bag forward.
[0047] like Figure 2 and 3 As shown, the extrusion roller assembly 3 includes two sets of side plates 33, and the lower extrusion roller 32 and the upper extrusion roller 31 are installed between the two sets of side plates 33 and rotate; and a drive motor 34 is installed on the outer side of one set of side plates 33, the output end of the drive motor 34 is connected to a set of lower extrusion rollers 32 located on the outer side, and a transmission wheel 35 is installed on the outer side of each lower extrusion roller 32, and is connected to the transmission wheel 35 for transmission by a transmission belt 36.
[0048] like Figure 4 As shown, the clamping component 2 includes a fixed bracket 21, and a clamping cylinder 22 is installed on the fixed bracket 21; an upper clamping plate 23 and a lower clamping plate 24 are respectively installed on the upper and lower parts of the fixed bracket 21; the bottom of the lower clamping plate 24 and the fixed bracket 21 are both fixedly connected to the main frame 1.
[0049] The output end of the clamping cylinder 22 passes downward through the fixed bracket 21 and connects to the upper clamping plate 23. Furthermore, the upper clamping plate 23 has ear plates 25 at both ends with connecting holes. A guide rod 26 is installed in the connecting holes, and a connecting spring 27 is installed on the guide rod 26. One end of the connecting spring 27 is fixedly connected to the fixed bracket 21, and the other end of the connecting spring 27 is fixedly connected to the ear plate 25. The top of the guide rod 26 passes through the fixed bracket 21 and is fitted with a limit ring 28.
[0050] like Figure 8 As shown, two sets of transverse lead screws 51 are provided and located at the bottom of the support plate 41, and the longitudinal length of the cutter 43 along the cutting direction is greater than the distance between the two sets of transmission cylinders 54; the frame plate 53 is C-shaped, and the two sets are arranged facing each other towards the opening. A transverse motor 58 is installed on the side of the transverse lead screw 51 away from the extrusion roller group 3, and the output end of the transverse motor 58 is coaxially arranged with the transverse lead screw 51;
[0051] A receiving cavity is provided on the main frame 1 between the two sets of transverse lead screws 51, and a storage box 6 is placed in the receiving cavity to store the cut packaging bags 100. A rotatable unloading door is provided on one side of the main frame, such as... Figure 6 As shown, the top is opened and closed by a latch, making it easy to remove the storage box inside the accommodating cavity.
[0052] In this embodiment, the packaging bag is clamped to a section by clamping components and transmission components. The bag is then tightened by upper and lower position plates that move along a transverse screw. A cutting cylinder drives a cutter to cut the bag, resulting in convenient and accurate cutting. Since the compression roller assembly ensures the bag moves forward under pressure, during initial installation, it needs to be manually pulled through the clamping components, compression roller assembly, and cutting component, and placed on the lower position plate. When the lower position plate senses an obstruction, it drives the transmission cylinder to clamp downwards. The upper and lower position plates clamp one end of the packaging bag, and the transverse motor is activated, moving the nut seat along the transverse screw to tighten the bag. Considering the potential for varying bag lengths, a limit plate can be installed on the main frame's storage box. This limit plate restricts the extreme positions of the two frame plates, ensuring the actual length of the pulled bag is controlled. Simultaneously, the clamping time of the clamping cylinder needs to be controlled.
[0053] Example 2
[0054] like Figure 9 and 10 As shown, another embodiment of this utility model is proposed. Based on embodiment 1, in order to solve the problem that the current equipment factory is a non-continuous operation type, bundled packaging bags that need to be hung are set on the equipment to realize feeding, so as to expand the application scope of this embodiment.
[0055] The main frame 1 has support columns 11 at its four bottom corners; and an installation port is provided at one end of the clamping member 2, into which a bearing roller 12 is installed. The bearing roller 12 is suitable for supporting bundled packaging bags 100. Two sets of steering rollers 13 are provided at the top of the installation port, and the two ends of the steering rollers 13 are connected to the main frame 1. In actual installation, a forklift or other transport vehicle can be inserted into the installation port and installed in the installation port by inserting the bearing rollers; the steering rollers are provided with multiple sets of spaced-out drive abutting against the packaging bags, so that the packaging bags will turn when they move on the main frame.
[0056] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention.
Claims
1. A uniform cutting device for processing cat food packaging bags, characterized in that, The utility model provides a packaging bag cutting and extruding device, including main frame (1), install clamping part (2), extrusion roller group (3), cutting part (4) and transmission part (5) on main frame (1), extrusion roller group (3) includes upper extrusion roller (31) and lower extrusion roller (32), and upper extrusion roller (31) and lower extrusion roller (32) are set up multiple groups and are suitable for extruding packaging bag (100), Cutting part (4) includes support plate (41) and cutting cylinder (42), and the cylinder body of cutting cylinder (42) is connected with support plate (41), and the output end of cutting cylinder (42) is installed with cutter (43), and cutter (43) is suitable for cutting packaging bag (100), Transmission part (5) includes horizontal lead screw (51), and horizontal lead screw (51) is installed with nut seat (52), and nut seat (52) is installed with frame plate (53), and transmission cylinder (54) is installed on frame plate (53), and the bottom of transmission cylinder (54) is installed with upper position plate (55), and lower position plate (56) is installed in frame plate (53), and inductive sensor (57) is installed in lower position plate (56), and inductive sensor (57) is suitable for inducting packaging bag (100), When clamping part (2) and transmission cylinder (54) clamp packaging bag (100) simultaneously, cutting cylinder (42) cuts packaging bag (100).
2. The uniform cutting device for processing cat food packaging bags according to claim 1, characterized in that, Extrusion roller group (3) includes two groups of side plates (33), and lower extrusion roller (32) and upper extrusion roller (31) are installed between two groups of side plates (33) and rotate, and one group of side plates (33) is installed with drive motor (34) on the outside, and the output end of drive motor (34) is connected with one group of lower extrusion roller (32) on the outside, and transmission wheel (35) is installed on the outside of lower extrusion roller (32), and is connected on transmission wheel (35) through installing transmission belt (36).
3. The uniform cutting device for processing cat food packaging bags according to claim 2, characterized in that, Clamping part (2) includes fixed support (21), and clamping cylinder (22) is installed on fixed support (21), and upper clamping plate (23) and lower clamping plate (24) are separately installed on the top and bottom of fixed support (21), and the bottom of lower clamping plate (24) and fixed support (21) are fixedly connected with main frame (1), The output end of clamping cylinder (22) passes through fixed support (21) downward and is connected with upper clamping plate (23).
4. The uniform cutting device for processing cat food packaging bags according to claim 3, characterized in that, The both ends of upper clamping plate (23) are provided with lug plate (25) and are provided with connecting hole, and guide rod (26) is installed in connecting hole, and connecting spring (27) is installed on guide rod (26), and one end of connecting spring (27) is fixedly connected with fixed support (21), and the other end of connecting spring (27) is fixedly connected with lug plate (25), and the top of guide rod (26) passes through fixed support (21) and is installed with limiting ring (28).
5. The uniform cutting device for processing cat food packaging bags according to claim 2, characterized in that, Horizontal lead screw (51) is provided with two groups and is located at the bottom of support plate (41), and the longitudinal length of cutter (43) along cutting is greater than the interval of two groups of transmission cylinder (54), Frame plate (53) is in the shape of "C", and two groups of openings are provided towards each other.
6. The uniform cutting device for processing cat food packaging bags according to claim 5, characterized in that, The lateral motor (58) is coaxially arranged on the output end of the lateral motor (58) and the lateral screw rod (51). The main rack (1) is provided with a receiving cavity between the two groups of lateral screw rods (51), and a receiving box (6) is arranged in the receiving cavity.
7. The uniform cutting device for processing cat food packaging bags according to claim 2, characterized in that, The bottom of the main rack (1) is provided with support columns (11) at four corners; one end of the clamping part (2) is provided with a mounting port, and a bearing roller (12) is mounted in the mounting port. Two groups of deflection rollers (13) are arranged on the top of the mounting port, and the two ends of the deflection rollers (13) are connected with the main rack (1).
Citation Information
Patent Citations
Uniform cutting device for cat food packaging bag processing
CN220075750U