Self-adaptive adjusting network chain structure for rotary cutter
Through the design of adaptive adjustment structure and shaft seat assembly, the instability problem of the rotary knife packaging machine mesh chain structure when adjusting the rotary knife position is solved, and the stable meshing of the transmission chain and the adaptability of the equipment are achieved.
Patent Information
- Application Number
- CN202422275719.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-09-18
AI Technical Summary
When adjusting the position of the rotary knife packaging machine, the mesh chain structure affects the feeding, resulting in unstable appearance of the packaging product and machine operation.
Adaptive adjustment structure is adopted, including adjusting the swing rod, adjusting the sprocket and adjusting the spring. By adjusting the spring tension, the tension of the transmission chain is maintained, and the tool seat distance is fine-tuned with the shaft seat assembly to ensure transmission stability and adaptability.
The stable engagement of the transmission chain when the rotary knife assembly is adjusted is achieved, which improves the stability and packaging effect of the equipment, and enhances the adaptability and versatility of the equipment.
Smart Images
Figure CN223267211U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of packaging equipment, in particular to a self-adapting adjustment network chain structure for a rotary knife. Background Art
[0002] The rotary blade packaging machine is a highly efficient and precise automated packaging device designed for rapid cutting and sealing of various film, paper, and other packaging materials. Utilizing advanced rotary blade technology, this machine continuously cuts materials, significantly improving production efficiency. However, the rotary blade packaging machine utilizes a mesh chain structure to assist in feeding. However, current mesh chains are often fixed to the rotary blade. Adjusting the position of the rotary blade, such as adjusting its height, requires the mesh chain to follow. This movement can affect feeding, which in turn affects the appearance of the packaged product and the stability of the machine's operation. The user experience needs to be improved. Utility Model Content
[0003] Based on the above-mentioned problems in the prior art, the utility model provides an adaptive adjustment mesh chain structure for a rotating knife, comprising a rotating knife assembly and a mesh chain assembly installed on a support seat, the rotating knife assembly is provided with a first synchronous sprocket that is transmission-connected to the driving structure, a second synchronous sprocket is fixedly provided on the driving shaft of the mesh chain assembly, the first synchronous sprocket and the second synchronous sprocket are meshed and sleeved with the same transmission chain, and an adaptive adjustment structure is also provided on the support seat, the adaptive adjustment structure comprises an adjustment rocker, one end of the adjustment rocker is rotatably installed on the support seat, the other end of the adjustment rocker is rotatably installed with an adjustment sprocket, the adjustment sprocket is meshed with the transmission chain, the end of the adjustment rocker equipped with the adjustment sprocket is also rotatably connected to one end of an adjustment spring, the other end of the adjustment spring is rotatably connected to the support seat, and the adjustment spring is in a stretched state.
[0004] Wherein, two sets of adaptive adjustment structures are provided on the support seat, and the two sets of adaptive adjustment structures are symmetrically installed on both sides of the transmission chain with the central axis of the transmission chain as the symmetrical center line.
[0005] Among them, the support seat is a gantry, and the rotating knife assembly includes a mounting plate fixedly mounted on the inner side of the gantry, a lower knife shaft is rotatably mounted on the lower part of the mounting plate, a lower knife seat is fixedly mounted on the lower knife shaft, and a lower blade is inlaid on the upper surface of the lower knife seat; an upper knife shaft is rotatably mounted on the mounting plate above the lower knife shaft, an upper knife seat is fixedly mounted on the upper knife shaft, and an upper blade is inlaid on the lower surface of the upper knife seat; a first synchronous gear is fixedly mounted on one end of the lower knife shaft, and a second synchronous gear is fixedly mounted on one end of the upper knife shaft, the first synchronous gear and the second synchronous gear are meshed with each other, and the first synchronous gear is then connected to the drive structure through a gear box, and the first synchronous sprocket is fixedly mounted to the lower knife shaft.
[0006] The upper portion of the mounting plate is provided with a slide groove extending up and down, and a slider is installed in the slide groove for sliding up and down, and the upper cutter shaft is rotatably installed on the slider; an axle seat assembly is installed at the corresponding position of the bottom of the slide groove, and the axle seat assembly includes a lower axle seat and an upper axle seat, and the lower axle seat and the mounting plate are fixedly connected, the upper axle seat and the slider are fixedly connected, and the upper surface of the lower axle seat is horizontally installed with a lower adjustment block, and the lower surface of the upper axle seat is fixedly installed with an upper adjustment block, and the upper surface of the upper axle seat is provided with an axle groove matching the upper cutter shaft, and the upper surface of the lower adjustment block and the lower surface of the upper adjustment block are upper and lower inclined surfaces that cooperate with each other, and one end of the lower adjustment block is rotatably installed with an adjusting bolt, which is threadedly connected to the lower axle seat.
[0007] Among them, one end of the lower shaft seat is provided with upper and lower guide grooves, the upper adjustment block is provided with a guide block inserted into the upper and lower guide grooves, the side walls of the upper and lower guide grooves are provided with limiting bolts, and the guide block is provided with limiting strip holes matching the limiting bolts.
[0008] The top of the mounting plate is fixedly connected with a fixing plate, the fixing plate is installed with a pressing block bolt through a threaded connection, and the bottom of the pressing block bolt is rotatably installed with a pressing block.
[0009] Wherein, the top of the support seat is installed with an upper and lower adjustment screw rod through a threaded connection, and the top of the upper and lower adjustment screw rod is rotatably connected to the fixed plate.
[0010] Among them, the mesh chain assembly includes a mounting frame fixedly mounted on the support seat, the driving shaft is rotatably mounted on the mounting frame, and several groups of passive sprockets are also rotatably mounted on the mounting frame, each group of passive sprockets includes two passive sprockets and are symmetrically mounted on the two ends of the mounting frame, a mesh chain sprocket is fixedly mounted on each end of the driving shaft, all the passive sprockets and mesh chain sprockets at the same end are sleeved with the same closed-loop mesh chain, several chain rods are fixedly connected between the two closed-loop mesh chains, all the chain rods are divided into several groups and the chain rods in each group are evenly arranged, and a mesh chain gap matching the rotating knife assembly is formed between each group of chain rods.
[0011] The utility model has the beneficial effects:
[0012] 1. An adaptive adjustment structure is set up. By adjusting the coordination of the swing arm, the sprocket and the spring, the transmission chain is tightened by the tension of the spring. Even when the position of the rotary knife assembly is adjusted according to actual needs, the transmission chain can maintain sufficient tension under the tension, ensuring stable engagement and transmission, thereby improving the stability of the equipment and the packaging effect.
[0013] 2. A shaft seat assembly is provided. By turning the adjusting bolt, the distance between the lower knife seat and the upper knife seat can be fine-tuned. It can be adjusted according to the requirements of different materials to improve the adaptability and versatility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The present invention is a three-dimensional structural diagram of an adaptive adjustment network chain structure for a rotary knife.
[0015] Figure 2 yes Figure 1 Enlarged view of point A.
[0016] Figure 3 The present invention is a schematic diagram of the three-dimensional structure of the self-adaptive adjustment network chain structure for a rotary knife from another angle.
[0017] Figure 4 It is a three-dimensional structural diagram of an adaptive adjustment mesh chain structure for a rotary knife, with the mesh chain components hidden.
[0018] Figure 5 It is a three-dimensional structural diagram of the shaft seat assembly.
[0019] Figure 6 It is a schematic diagram of the exploded three-dimensional structure of the shaft seat assembly.
[0020] Figure 7 It is a three-dimensional structural diagram of the network chain component.
[0021] Figure 8 This is a three-dimensional structural diagram of the network chain component from another angle
[0022] Figure 9 It is a partial structural diagram of the rotary knife assembly.
[0023] Figure 10 yes Figure 9 Zoom in on point B. DETAILED DESCRIPTION
[0024] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
[0025] As attached Figure 1-10The self-adaptive adjustment mesh chain structure for a rotating knife shown in the figure comprises a rotating knife assembly 2 and a mesh chain assembly 3 mounted on a support base 1, wherein the support base 1 is a gantry frame, and the rotating knife assembly 2 comprises a mounting plate 4 fixedly mounted on the inner side of the columns on both sides of the gantry frame, a mounting plate 4 is mounted on each side column, and the lower parts of the two mounting plates 4 are rotatably mounted with the same lower knife shaft 5 through bearings, a lower knife seat 6 is fixedly mounted on the lower knife shaft 5, and a lower blade 7 is inlaid on the upper surface of the lower knife seat 6; the mounting plate 4 is provided with a slide groove 8 extending up and down above the lower knife shaft 5, and a slider 9 is mounted in the slide groove 8 to slide up and down , the same upper cutter shaft 10 is installed on the sliders 9 on both sides through bearings, and an upper cutter seat 11 is fixedly installed on the upper cutter shaft 10, and an upper blade 12 is inlaid on the lower surface of the upper cutter seat 11; a first synchronous gear 13 is fixedly installed on one end of the lower cutter shaft 5, and a second synchronous gear 14 is fixedly installed on one end of the upper cutter shaft 10. The first synchronous gear 13 and the second synchronous gear 14 are engaged with each other, and the first synchronous gear 13 is then connected to a drive motor serving as a drive structure 16 through a worm gear box 15. A first synchronous sprocket 17 is fixedly provided at the other end of the lower cutter shaft 5 relative to the first synchronous gear 13.
[0026] The network chain assembly 3 includes a mounting frame 18 fixedly mounted on the support base 1, a driving shaft 19 is rotatably mounted on the lower part of the mounting frame 18, a second synchronous sprocket 20 is fixedly provided on the driving shaft 19, and four groups of passive sprockets 21 are also rotatably mounted on the mounting frame 18, each group of passive sprockets 21 includes two passive sprockets 21 and are symmetrically mounted to the two ends of the mounting frame 18, a network chain sprocket 22 is fixedly mounted on each end of the driving shaft 19, all the passive sprockets 21 and the network chain sprocket 22 at the same end are sleeved with the same closed-loop network chain 23, a number of chain rods 24 are fixedly connected between the two closed-loop network chains 23, all the chain rods 24 are divided into two groups and the chain rods 24 in each group are evenly arranged, and a network chain gap 25 that matches the rotary knife assembly 2 is formed between the two groups of chain rods 24.
[0027] The first synchronous sprocket 17 and the second synchronous sprocket 20 are meshed with the same transmission chain 26. Two groups of adaptive adjustment structures are also provided on the support seat 1. The two groups of adaptive adjustment structures are symmetrically installed on both sides of the transmission chain 26 with the central axis of the transmission chain 26 as the symmetrical center line. Each group of adaptive adjustment structures includes an adjusting rocker 27. One end of the adjusting rocker 27 is rotatably installed on the support seat 1, and the other end of the adjusting rocker 27 is rotatably installed with an adjusting sprocket 28. The adjusting sprocket 28 is meshed with the transmission chain 26. The end of the adjusting rocker 27 on which the adjusting sprocket 28 is installed is also rotatably connected to one end of the adjusting spring 29. The other end of the adjusting spring 29 is rotatably connected to the support seat 1, and the adjusting spring 29 is in a stretched state.
[0028] The cam 32 is fixed to the upper and lower surfaces of the cam 32 so as to be fixed on the cam 32 and the lower surface of the cam 32 is fixed on the cam 32. The top of the support seat 1 is provided with an upper and lower adjusting screw 43, and the top of the upper and lower adjusting screw 43 is rotatably connected to the fixed plate 40, and the rotating knife assembly 2 is driven up and down by rotating the upper and lower adjusting screw 43.
[0029] The mesh chain structure provided in this embodiment can be used as part of a packaging production line, and can be used in conjunction with other structures of the production line to package products. Its main function is to seal the packaging film. First, according to the actual packaging needs of the product, the rotating knife assembly 2 is adjusted to a suitable position by adjusting the screw 43 up and down. During the adjustment process, the adaptive adjustment structure automatically controls the tension of the transmission chain 26 under the action of the adjustment spring 29, so that the mesh chain assembly 3 does not need to move up and down with the rotating knife assembly 2, thereby ensuring the stability of the equipment and the packaging effect; then loosen the pressure block bolt 41, and use the adjustment bolt 36 to adjust the distance between the upper knife seat 11 and the lower knife seat 6 according to the needs to adapt to the corresponding packaging film, and then tighten the pressure block bolt 41 to press and fix the slider 9 before the sealing work can be carried out.
[0030] Other structures on the production line transport the packaging film and the corresponding products to the sealing station. The drive motor starts and drives the upper knife shaft 10, the lower knife shaft 5 and the active shaft 19 of the mesh chain structure to rotate. The mesh chain structure rotates and pulls the packaging film under the drive of the active shaft 19. The upper knife seat 11 and the lower knife seat 6 rotate at the same time and separate from each other. During this period, the packaging film is pulled a certain distance and bagged. After one rotation, the upper knife seat 11 and the lower knife seat 6 approach again, and the upper blade 12 and the lower blade 7 are used to seal and cut the packaging film. Then the upper knife seat 11 and the lower knife seat 6 rotate and separate again, and the next sealing is performed.
[0031] The above-described embodiment merely represents one embodiment of the present invention. While the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.
Claims
1. An adaptive adjustment mesh chain structure for a rotary knife, comprising a rotary knife assembly (2) and a mesh chain assembly (3) mounted on a support seat (1), characterized in that: The rotary knife assembly (2) is provided with a first synchronous sprocket (17) which is transmission-connected to the driving structure (16); a second synchronous sprocket (20) is fixedly provided on the driving shaft (19) of the mesh chain assembly (3); the first synchronous sprocket (17) and the second synchronous sprocket (20) are meshedly sleeved with the same transmission chain (26); an adaptive adjustment structure is also provided on the support seat (1); the adaptive adjustment structure comprises an adjustment rocker (27); one end of the adjustment rocker (27) is rotationally mounted on the support seat (1); the other end of the adjustment rocker (27) is rotationally mounted with an adjustment sprocket (28); the adjustment sprocket (28) and the transmission chain (26) are meshed; one end of the adjustment rocker (27) which is mounted with the adjustment sprocket (28) is also rotationally connected to one end of an adjustment spring (29); the other end of the adjustment spring (29) is rotationally connected to the support seat (1); the adjustment spring (29) is in a stretched state.
2. The self-adaptive adjustment network chain structure for a rotary knife according to claim 1, characterized in that: The support seat (1) is provided with two sets of self-adaptive adjustment structures, which are symmetrically installed on both sides of the transmission chain (26) with the central axis of the transmission chain (26) as the symmetrical center line.
3. The self-adaptive adjustment network chain structure for a rotary knife according to claim 2, characterized in that: The support seat (1) is a gantry frame, and the rotating knife assembly (2) includes a mounting plate (4) fixedly mounted on the inner side of the gantry frame, a lower knife shaft (5) is rotatably mounted on the lower portion of the mounting plate (4), a lower knife seat (6) is fixedly mounted on the lower knife shaft (5), and a lower blade (7) is embedded on the upper surface of the lower knife seat (6); an upper knife shaft (10) is rotatably mounted on the mounting plate (4) above the lower knife shaft (5), and an upper knife seat (11) is fixedly mounted on the upper knife shaft (10). ), an upper blade (12) is embedded on the lower surface of the upper blade seat (11); a first synchronous gear (13) is fixedly installed on one end of the lower blade shaft (5), and a second synchronous gear (14) is fixedly installed on one end of the upper blade shaft (10), the first synchronous gear (13) and the second synchronous gear (14) are meshed with each other, and the first synchronous gear (13) is connected to the driving structure (16) through a gear box, and the first synchronous sprocket (17) is fixedly installed on the lower blade shaft (5).
4. The self-adaptive adjustment network chain structure for a rotary knife according to claim 3, characterized in that: The upper portion of the mounting plate (4) is provided with a sliding groove (8) extending up and down, a slider (9) is installed in the sliding groove (8) to slide up and down, and the upper knife shaft (10) is rotatably installed on the slider (9); the mounting plate (4) is provided with an axle seat assembly (30) at the corresponding position of the bottom of the sliding groove (8), and the axle seat assembly (30) includes a lower axle seat (31) and an upper axle seat (32), the lower axle seat (31) and the mounting plate (4) are fixedly connected, the upper axle seat (32) and the slider (9) are fixedly connected, and the lower axle seat ( The upper surface of the upper shaft seat (31) is horizontally slidably mounted with a lower adjusting block (33), the lower surface of the upper shaft seat (32) is fixedly mounted with an upper adjusting block (34), the upper surface of the upper shaft seat (32) is provided with an axis groove (35) that matches the upper cutter shaft (10), the upper surface of the lower adjusting block (33) and the lower surface of the upper adjusting block (34) are upper and lower inclined surfaces that match each other, one end of the lower adjusting block (33) is rotatably mounted with an adjusting bolt (36), and the adjusting bolt (36) is threadedly connected to the lower shaft seat (31).
5. The self-adaptive adjustment network chain structure for a rotary knife according to claim 4, characterized in that: One end of the lower shaft seat (31) is provided with upper and lower guide grooves (37), the upper adjustment block (34) is provided with a guide block (38) that matches and is inserted into the upper and lower guide grooves (37), the side walls of the upper and lower guide grooves (37) are provided with limiting bolts, and the guide block (38) is provided with a limiting bar hole (39) that matches the limiting bolts.
6. The self-adaptive adjustment network chain structure for a rotary knife according to claim 5, characterized in that: The top of the mounting plate (4) is fixedly connected with a fixing plate (40), the fixing plate (40) is installed with a pressing block bolt (41) through a threaded connection, and the bottom of the pressing block bolt (41) is rotatably installed with a pressing block (42).
7. The self-adaptive adjustment network chain structure for a rotary knife according to claim 6, characterized in that: The top of the support seat (1) is provided with an upper and lower adjustment screw rod (43) through a threaded connection, and the top of the upper and lower adjustment screw rod (43) is rotatably connected to the fixing plate (40).
8. The self-adaptive adjustment network chain structure for a rotary knife according to claim 7, characterized in that: The mesh chain assembly (3) includes a mounting frame (18) fixedly mounted on the support seat (1), the mounting frame (18) is rotatably mounted with the driving shaft (19), and a plurality of passive sprockets (21) are also rotatably mounted on the mounting frame (18), a mesh chain sprocket (22) is fixedly mounted at both ends of the driving shaft (19) and each passive sprocket (21), all the mesh chain sprockets (22) at the same end are sleeved with the same closed-loop mesh chain (23), a plurality of chain rods (24) are fixedly connected between the two closed-loop mesh chains (23), all the chain rods (24) are divided into a plurality of groups, and the chain rods (24) in each group are evenly arranged, and a mesh chain gap (25) matching the rotary knife assembly (2) is formed between each group of chain rods (24).