A cutting mechanism for a multi-column packaging machine
The servo motor-driven cutting mechanism utilizes the stud length difference design to achieve a V-shaped cutting sequence, solving the problems of stress concentration and high energy consumption in traditional cutting technology, and improving cutting quality and equipment life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 上海欧朔智能包装科技有限公司
- Filing Date
- 2025-07-11
- Publication Date
- 2026-07-03
Smart Images

Figure CN224448431U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging equipment, specifically to a cutting mechanism for a multi-row packaging machine. Background Technology
[0002] Traditional cutting techniques generally employ a uniform-height cutting blade structure, resulting in the entire tangent line being stressed simultaneously during the cutting process, leading to excessive instantaneous impact force. This design not only causes stress concentration in the material but also requires the equipment to provide greater driving force and a more robust mechanical structure, increasing energy consumption and equipment load. In practical applications, traditional cutting processes often suffer from defects such as unstable cutting quality, edge deformation, high noise, and significant vibration, especially when processing thicker or harder materials. Furthermore, concentrated stress accelerates blade wear, and frequent impact loads lead to accelerated fatigue of mechanical components, increasing maintenance frequency and costs, and reducing production efficiency. For fragile materials and precision machining, traditional cutting methods are even more inadequate to meet high-precision requirements, urgently requiring an innovative solution that can distribute cutting force, reduce instantaneous energy consumption, improve cutting quality, and extend equipment life.
[0003] To address the aforementioned issues, we have made a series of improvements. Utility Model Content
[0004] The purpose of this invention is to provide a cutting mechanism for a multi-row packaging machine to overcome the aforementioned shortcomings and deficiencies of the prior art.
[0005] A cutting mechanism for a multi-row packaging machine includes: a servo motor, a synchronous belt, a rotating shaft, a coupling, a fixing bar, an eccentric shaft, a retaining ring, a swing arm, a fixing block, a fixing plate, a fixing seat, a cutting drive system, a cutting mechanism, a guide groove, and a cooling system. The servo motor is connected to the synchronous belt, the synchronous belt is connected to the rotating shaft, couplings are provided at both ends of the rotating shaft, the couplings are connected to the fixing bar via shafts, the couplings are connected to the eccentric shaft, the eccentric shaft is connected to the retaining ring, the eccentric shaft is connected to one end of the swing arm, the other end of the swing arm is connected to the fixing block, the fixing block is connected to the fixing plate, the fixing plate is connected to the fixing seat, the fixing seat is connected to the cutting drive system, the cutting drive system is connected to the cutting mechanism, both ends of the guide groove are connected to the fixing seat, and the cooling system is connected to the guide groove.
[0006] Furthermore, the cutting drive system includes: a bearing, a guide shaft, and a linear bearing. One end of the guide shaft is connected to the swing arm via the bearing, and the other end of the guide shaft is connected to the cutting mechanism. The guide shaft is housed within the linear bearing, and the linear bearing is housed within a fixed base.
[0007] Furthermore, the cutting mechanism includes: a cutting die, a die cutter, a die cutter fixing seat, a cutting punch, a cutting punch fixing plate, a punch, a punch fixing block, a floating joint, a first stud, a second stud, and a third stud. The cutting die is connected to the die cutter. The cutting die is connected to the fixing plate via the die cutter fixing seat. The cutting punch fixing plate is connected to the guide shaft. The cutting punch is connected to the die cutter. The cutting punch is connected to the punch fixing block. The punch fixing block is connected to the floating joint. The floating joint is connected to the first stud, the second stud, and the third stud. There are multiple first studs, second studs, and third studs. The first stud is located on both sides of the second stud, and the second stud is located on both sides of the third stud. The length of the first stud is greater than that of the second stud, and the length of the second stud is greater than that of the third stud.
[0008] Furthermore, the cooling system includes: a cooling air pipe fixing block and a cooling air pipe, wherein the cooling air pipe is connected to a fixing plate through the cooling air pipe fixing block.
[0009] The beneficial effects of this utility model are:
[0010] This invention changes the order of the cutter and the strip by using the length difference of the studs, thereby reducing the stress on the moving blade fixing plate and avoiding the greater force required for all cutters to cut at the same time. Attached image description:
[0011] Figure 1 This is a schematic diagram of the structure of this utility model.
[0012] Figure 2 This is a partial structural diagram of the cutting mechanism.
[0013] Figure 3 This is a top view of the cutting mechanism.
[0014] Figure 4 This is a schematic diagram of the cutter drive system.
[0015] Figure label:
[0016] Servo motor 100, synchronous belt 200, rotating shaft 300, coupling 400, fixing bar 500, eccentric shaft 600, retaining ring 700, swing arm 800, fixing block 900, fixing plate 1000, fixing seat 1100, cutter transmission system 1200, bearing 1201, guide shaft 1202 and linear bearing 1203.
[0017] The components include a cutting mechanism 1300, a cutting die 1301, a die cutter 1302, a die cutter fixing seat 1303, a cutting punch 1304, a cutting punch fixing plate 1305, a punch cutter 1306, a punch fixing block 1307, a floating joint 1308, a first stud 1309, a second stud 1310, and a third stud 1311.
[0018] Guide groove 1400, cooling system 1500, cooling air pipe fixing block 1501 and cooling air pipe 1502. Detailed Implementation
[0019] The present invention will be further described below with reference to specific embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.
[0020] Example 1
[0021] Figure 1 This is a schematic diagram of the structure of this utility model. Figure 2 This is a partial structural diagram of the cutting mechanism. Figure 3 This is a top view of the cutting mechanism. Figure 4 This is a schematic diagram of the cutter drive system.
[0022] like Figure 1 As shown, a cutting mechanism for a multi-row packaging machine includes: a servo motor 100, a synchronous belt 200, a rotating shaft 300, a coupling 400, a fixing bar 500, an eccentric shaft 600, a retaining ring 700, a swing arm 800, a fixing block 900, a fixing plate 1000, a fixing seat 1100, a cutter transmission system 1200, a cutter mechanism 1300, a guide groove 1400, and a cooling system 1500. The servo motor 100 is connected to the synchronous belt 200, which is connected to the rotating shaft 300. Couplings 400 are provided at both ends of the rotating shaft 300, and the couplings 400 are connected to the fixing plate 1100 via shafts. The fixed bar 500 is connected, the coupling 400 is connected to the eccentric shaft 600, the eccentric shaft 600 is connected to the retaining ring 700, the eccentric shaft 600 is connected to one end of the swing arm 800, the other end of the swing arm 800 is connected to the fixed block 900, the fixed block 900 is connected to the fixed plate 1000, the fixed plate 1000 is connected to the fixed seat 1100, the fixed seat 1100 is connected to the cutter transmission system 1200, the cutter transmission system 1200 is connected to the cutter mechanism 1300, the guide groove 1400 is connected to the fixed seat 1100 at both ends, and the cooling system 1500 is connected to the guide groove 1400.
[0023] like Figure 4 As shown, the cutter transmission system 1200 includes: a bearing 1201, a guide shaft 1202 and a linear bearing 1203. One end of the guide shaft 1202 is connected to the swing arm 800 through the bearing 1201, and the other end of the guide shaft 1202 is connected to the cutter mechanism 1300. The guide shaft 1202 is located inside the linear bearing 1203, and the linear bearing 1203 is located inside the fixed seat 1100.
[0024] like Figure 2 and Figure 3As shown, the cutting mechanism 1300 includes: a cutting die 1301, a die cutter 1302, a die cutter fixing seat 1303, a cutting punch 1304, a cutting punch fixing plate 1305, a punch 1306, a punch fixing block 1307, a floating joint 1308, a first stud 1309, a second stud 1310, and a third stud 1311. The cutting die 1301 is connected to the die cutter 1302. The cutting die 1301 is connected to the fixing plate 1300 via the die cutter fixing seat 1303. The cutting punch fixing plate 1305 is connected to the guide shaft 1202. The cutting punch 1304 is connected to the die cutter 1306. 06 Connection: The cutting punch 1304 is connected to the punch fixing block 1307, the punch fixing block 1307 is connected to the floating joint 1308, and the floating joint 1308 is connected to the first stud 1309, the second stud 1310, and the third stud 1311. There are multiple first studs 1309, second studs 1310, and third studs 1311. The first stud 1309 is located on both sides of the second stud 1310, and the second stud 1310 is located on both sides of the third stud 1311. The length of the first stud 1309 is greater than that of the second stud 1310, and the length of the second stud 1310 is greater than that of the third stud 1311.
[0025] The cooling system 1500 includes a cooling air pipe fixing block 1501 and a cooling air pipe 1502, wherein the cooling air pipe 1502 is connected to the fixing plate 1000 through the cooling air pipe fixing block 1501.
[0026] The innovation of this utility model lies in fixing the concave die 1302, connecting the convex die 1306 to the floating joint 1308, and then to studs of different lengths and convex die fixing blocks 1307. In this embodiment, there are two sets of first studs 1309, two in each set, with a length of 10mm; two sets of second studs 1310, two in each set, with a length of 9mm; and one set of third studs 1311, four in each set, with a length of 8.5mm. The final effect is that the ends are the longest and gradually taper towards the middle, with the middle being the shortest. By using studs with this length design, the cutter does not cut all the left and right strips simultaneously, presenting a V-shaped cutting direction. This allows the rounded corner cutters to cut in sequence, with the ends cutting before the middle, reducing the stress on the moving blade fixing plate and avoiding the greater force required for all cutters to cut simultaneously. In actual production design, it is not necessary to concern oneself with the specific number and length of the studs, as long as the ends are longer than the middle, presenting a V-shaped cutting direction, the logic of this utility model is satisfied. The specific principle is as follows: The essence of the V-shaped cutting structure is to create an ordered cutting sequence, distributing the cutting force along a specific direction and order, rather than having it occur simultaneously. The difference in stud length determines the cutting time difference; the length difference between adjacent studs should be moderate to ensure a smooth transition. The total height difference between the two ends and the center determines the depth of the V-shape, affecting the degree of cutting force dispersion. This structure maintains a decreasing trend from the edge to the center, preserving the overall V-shaped cutting direction and ensuring the sequential dispersion of cutting force. Essentially, it creates a time difference through height differences, thereby achieving force dispersion. Regardless of the specific numerical values, as long as the V-shaped distribution principle of high ends and low middle is followed, the purpose of reducing instantaneous stress can be achieved.
[0027] This invention changes the order of the cutter and the strip by using the length difference of the studs, thereby reducing the stress on the moving blade fixing plate and avoiding the greater force required for all cutters to cut at the same time.
[0028] The specific embodiments of this utility model have been described above, but this utility model is not limited thereto. Various changes can be made to this utility model as long as they do not depart from its spirit.
Claims
1. A cut-off mechanism of a multi-column packaging machine, characterized in that, include: The system comprises a servo motor (100), a synchronous belt (200), a rotating shaft (300), a coupling (400), a fixing bar (500), an eccentric shaft (600), a retaining ring (700), a swing arm (800), a fixing block (900), a fixing plate (1000), a fixing seat (1100), a cutter transmission system (1200), a cutter mechanism (1300), a guide groove (1400), and a cooling system (1500). The servo motor (100) is connected to the synchronous belt (200), and the synchronous belt (200) is connected to the rotating shaft (300). Couplings (400) are provided at both ends of the rotating shaft (300), and the couplings (400) are connected to the fixing bar (500) via shafts. (400) is connected to the eccentric shaft (600), the eccentric shaft (600) is connected to the retaining ring (700), the eccentric shaft (600) is connected to one end of the swing arm (800), the other end of the swing arm (800) is connected to the fixed block (900), the fixed block (900) is connected to the fixed plate (1000), the fixed plate (1000) is connected to the fixed seat (1100), the fixed seat (1100) is connected to the cutter transmission system (1200), the cutter transmission system (1200) is connected to the cutter mechanism (1300), both ends of the guide groove (1400) are connected to the fixed seat (1100), and the cooling system (1500) is connected to the guide groove (1400).
2. A cut-off mechanism for a multi-column packaging machine according to claim 1, characterized in that The cutting drive system (1200) includes: a bearing (1201), a guide shaft (1202), and a linear bearing (1203). One end of the guide shaft (1202) is connected to the swing arm (800) through the bearing (1201), and the other end of the guide shaft (1202) is connected to the cutting mechanism (1300). The guide shaft (1202) is located inside the linear bearing (1203), and the linear bearing (1203) is located inside the fixed base (1100).
3. A cut-off mechanism for a multi-column packaging machine according to claim 2, characterized in that The cutting mechanism (1300) includes: a cutting die (1301), a die cutter (1302), a die cutter fixing seat (1303), a cutting punch (1304), a cutting punch fixing plate (1305), a punch cutter (1306), a punch fixing block (1307), a floating joint (1308), a first stud (1309), a second stud (1310), and a third stud (1311). The cutting die (1301) is connected to the die cutter (1302). The cutting die (1301) is connected to the fixing plate (1000) through the die cutter fixing seat (1303). The cutting punch fixing plate (1305) is connected to the guide shaft (1202). The cutting punch (1304) is connected to the punch cutter (1306). The cutter punch (1304) is connected to the punch fixing block (1307), the punch fixing block (1307) is connected to the floating joint (1308), and the floating joint (1308) is connected to the first stud (1309), the second stud (1310), and the third stud (1311). There are multiple first studs (1309), second studs (1310), and third studs (1311). The first stud (1309) is located on both sides of the second stud (1310), and the second stud (1310) is located on both sides of the third stud (1311). The length of the first stud (1309) is greater than that of the second stud (1310), and the length of the second stud (1310) is greater than that of the third stud (1311).
4. A cut-off mechanism for a multi-column packaging machine according to claim 1, characterized in that The cooling system (1500) includes a cooling air pipe fixing block (1501) and a cooling air pipe (1502), wherein the cooling air pipe (1502) is connected to the fixing plate (1000) through the cooling air pipe fixing block (1501).