Feeding mechanism of high-speed strapping machine

Abstract

The utility model relates to the technical field of strapping equipment, in particular to a feeding mechanism of a high-speed strapping machine. A feeding mechanism of a high-speed strapping machine comprises a machine frame, a strap feeding track and a welding mechanism, the strap feeding track and the welding mechanism are arranged on the machine frame, a strap clamp is arranged on the welding mechanism, and a feeding channel formed by two clamping plates in a clearance fit mode is arranged between a discharging port of the strap feeding track and the welding mechanism. A feeding wheel set and a forward and reverse traction wheel set are sequentially arranged in the machine frame in the feeding direction of the belt feeding track, notches are formed in the positions, on the feeding wheel set and the forward and reverse traction wheel set, of the belt conveying track respectively, and the feeding wheel set and the forward and reverse traction wheel set each comprise a driving wheel and a driven wheel. The welding mechanism is further provided with a main motor for driving the ribbon clamp to be opened and closed, and a secondary tensioning pressing wheel and a linkage mechanism which is in linkage with the main motor and drives the secondary tensioning pressing wheel to be close to a driving wheel of the forward and reverse traction wheel set are installed in the machine frame.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of feeding mechanism of high-speed strapping machine. BACKGROUND

[0002] In the current flourishing of packaging industry, as the key equipment of product packaging link, the performance of strapping machine directly affects the packaging efficiency and quality. However, the existing feeding mechanism of strapping machine has many problems to be solved.

[0003] From the aspect of strapping tensioning action, the traditional feeding mechanism usually adopts multiple independent power devices and complex mechanical structure to realize the clamping and tensioning of strapping. This design makes the lack of effective coordination between actions, and the response speed is slow. For example, in the process of strapping clamping and secondary tensioning, multiple motors are often needed to start in turn, which not only increases the energy consumption of the equipment, but also prolongs the entire strapping cycle. Moreover, due to the difficulty in ensuring the coordination between actions, the strapping is unevenly stressed during tensioning, resulting in insecure strapping and the possibility of product scattering during subsequent transportation or handling. This not only increases the packaging cost, but also may affect the sales image of the product. SUMMARY

[0004] The utility model aims to provide a technical solution to solve the above problems.

[0005] A kind of feeding mechanism of high-speed strapping machine, including rack and the feeding track and the welding mechanism of setting on rack, welding mechanism is equipped with strapping clamp, the discharge port of feeding track and welding mechanism between is equipped with the feeding channel by the gap cooperation of two clamping plates, rack is sequentially equipped with feeding wheel group, positive and negative traction wheel group along the feeding direction of feeding track, feeding track is equipped with notch at feeding wheel group, positive and negative traction wheel group place respectively, feeding wheel group, positive and negative traction wheel group all include driving wheel, driven wheel;

[0006] Welding mechanism is also equipped with the main motor that drives strapping clamp opening and closing, and the secondary tensioning compression wheel and the linkage mechanism that is linked with main motor and drives secondary tensioning compression wheel to approach the driving wheel of positive and negative traction wheel group are installed in rack.

[0007] Further, the driving wheel block is coaxially fixedly connected on the rotating shaft of main motor, the convex block is arranged on the end face edge of driving wheel block, the linkage mechanism includes rocker, pull rod and compression wheel frame, the middle part of rocker is connected with rack shaft, one end of rocker is rotatably installed with the roller in contact with the end face edge of driving wheel block, the pull rod is hinged to the other end of rocker, one end of compression wheel frame is hinged to rack, the pull rod is hinged to the other end of compression wheel frame, the secondary tensioning compression wheel is rotatably installed in the middle part of compression wheel frame, the traction spring connecting rack and the middle part of compression wheel frame is further arranged on the other side of compression wheel frame.

[0008] Furthermore, the frame is also equipped with a take-up slot to accommodate excess cable ties. The feed track is also equipped with a take-up notch that connects to the take-up slot between the feed wheel set and the forward and reverse traction wheel set. A baffle covering the take-up notch and an opening and closing motor for driving the baffle to open and close are provided at the take-up notch.

[0009] Furthermore, a material full sensor is installed inside the take-up trough.

[0010] Furthermore, an inspection port is provided at the take-up notch on the take-up groove, and a cover plate is hinged to the take-up groove at the inspection port.

[0011] Furthermore, feed sensors are installed on the feed track near the feed wheel assembly and the forward and reverse traction wheel assembly, respectively.

[0012] Compared with the prior art, the beneficial effects achieved by this application are as follows: This utility model adopts a linkage mechanism, which realizes that while the main motor drives the cable clip to open and close, it simultaneously completes the adjustment of the position of the secondary tensioning pressure roller. Compared with the traditional strapping machine feeding mechanism, no additional power device or complicated operation process is required to achieve secondary tensioning of the cable tie, which greatly simplifies the operation logic of the equipment. At the same time, due to the better coordination of the tensioning action, the cable tie is subjected to more uniform force during the strapping process, which greatly improves the quality and stability of strapping, reduces problems such as product scattering caused by loose strapping, and reduces the packaging defect rate.

[0013] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0017] Figure 3 This is another structural schematic diagram of the present invention.

[0018] Figure 4 This is a schematic diagram of the linkage mechanism in this utility model. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Please see Figures 1 to 4 A feeding mechanism for a high-speed strapping machine includes a frame 1 and a feeding track 2 and a welding mechanism 4 mounted on the frame 1. The welding mechanism 4 is provided with strap clamps 5. A feeding channel 6 composed of two clamps with a gap fit is provided between the outlet of the feeding track 2 and the welding mechanism 4. The frame 1 is provided with a feeding wheel set 7 and a forward and reverse traction wheel set 8 in sequence along the feeding direction of the feeding track 2. The feeding track is provided with notches at the feeding wheel set 7 and the forward and reverse traction wheel set 8 respectively. The feeding wheel set 7 and the forward and reverse traction wheel set 8 both include a driving wheel and a driven wheel.

[0021] The welding mechanism 4 is also equipped with a main motor 9 that drives the cable tie clamp 5 to open and close. The frame 1 houses a secondary tensioning roller 10 and a linkage mechanism 11 that is linked to the main motor 9 and drives the secondary tensioning roller 10 to approach the drive wheel of the forward and reverse traction wheel set 8. This utility model uses the linkage mechanism 11, which allows the main motor 9 to simultaneously adjust the position of the secondary tensioning roller 10 while driving the cable tie clamp 5 to open and close. Compared with traditional strapping machine feeding mechanisms, no additional power unit or complex operating procedures are required to achieve secondary tensioning of the cable ties, greatly simplifying the equipment's operating logic. Simultaneously, due to better coordination of the tensioning action, the cable ties are subjected to more even force during strapping, significantly improving the quality and stability of strapping, reducing problems such as product scattering due to insecure strapping, and lowering the rate of defective packaging.

[0022] In addition, the transmission mechanism between the main motor 9 and the cable clip in this application can refer to the hot-pressing cutting component in the applicant's Chinese utility model patent CN219173866U "A Cable Clip Transmission Structure" (publication date 2023.06.13). The main motor 9 (fourth motor) drives the cam to lift the cable clip 5 (hot-pressing plate) to open and then close to clamp the cable clip. The specific structure will not be described in detail here.

[0023] Furthermore, a drive wheel block 12 is coaxially fixedly connected to the shaft of the main motor 9. A protrusion 13 is provided on the end face edge of the drive wheel block 12. The linkage mechanism 11 includes a rocker arm 14, a pull rod 15, and a pressure roller frame 16. The middle part of the rocker arm 14 is connected to the frame 1 shaft. One end of the rocker arm 14 is rotatably mounted with a roller 17 that contacts the end face edge of the drive wheel block 12. The pull rod 15 is hinged to the other end of the rocker arm 14. One end of the pressure roller frame 16 is hinged to the frame 1, and the pull rod 15 is hinged to the other end of the pressure roller frame 16. A secondary tensioning pressure roller 10 is rotatably mounted in the middle of the pressure roller frame 16. A traction spring 18 connecting the frame 1 and the middle of the pressure roller frame 16 is also provided on the pressure roller frame 16 opposite to the pull rod 15. Specifically, the drive wheels of the feed wheel group 7 and the forward and reverse traction wheel group 8 are driven to rotate by motors. The protrusion 13 periodically contacts the roller 17 rotatably mounted on one end of the rocker arm 14. When the two come into contact, due to the pushing action of the protrusion 13, the rocker arm 14 will swing with its middle part connected to the frame 1 as the fulcrum. This swing is transmitted to the pressure roller frame 16 through the tie rod 15 hinged to it. One end of the pressure roller frame 16 is hinged to the frame 1, and the other end is hinged to the tie rod 15. Driven by the tie rod 15, the pressure roller frame 16 rotates around its hinge point with the frame 1, so that the secondary tensioning pressure roller 10 installed in the middle of the pressure roller frame 16 can accurately approach the drive wheel of the forward and reverse traction wheel set 8.

[0024] Furthermore, the frame 1 is also equipped with a take-up groove 19 to accommodate excess cable ties. The feed track 2 is also provided with a take-up notch connecting the take-up groove 19 between the feed roller set 7 and the forward and reverse traction roller set 8. A baffle 20 covering the take-up notch and an opening and closing motor 21 driving the baffle 20 to open and close are provided at the take-up notch. The feed roller set 7 and the forward and reverse traction roller set 8 work together to transport the cable ties from the feed track 2 to the welding mechanism 4. When excess cable ties need to be processed, the opening and closing motor 21 drives the baffle 20 to open, and the cable ties enter the take-up groove 19 through the take-up notch.

[0025] Furthermore, a full sensor 22 is provided inside the take-up trough 19. The full sensor 22 monitors the condition inside the take-up trough 19 in real time. When it detects that the take-up trough 19 is almost full, it sends a signal to the feed wheel assembly 7 to stop feeding.

[0026] Furthermore, an inspection port is provided on the take-up groove 19 at the take-up notch, and a cover plate 23 is hinged to the take-up groove 19 at the inspection port. Specifically, the cover plate 23 is in a closed device and locked with a pin when the machine is running normally. When a jam or misalignment occurs, the pin is pulled out and the cover plate 23 is opened so that the cable tie can be pulled out from the inspection port.

[0027] Furthermore, feeding sensors 24 are respectively installed on the feed track 2 near the feeding wheel assembly 7 and the forward and reverse traction wheel assembly 8. Specifically, in use, the cable tie is first placed into the feed track 2, triggering the feeding sensor 24 near the feeding wheel assembly 7. The feeding wheel assembly 7 starts to transport the cable tie to the forward and reverse traction wheel assembly 8, triggering the feeding sensor 24 near the forward and reverse traction wheel assembly 8 again to achieve continuous automatic feeding. During the binding process, the main motor 9 drives the cable tie clamp 5 to clamp the front end of the cable tie, and drives the secondary tensioning roller 10 to work through the linkage mechanism 11. The forward and reverse traction wheel assembly 8 cooperates to complete the tensioning action of the cable tie. When there is excess cable tie that needs to be processed, the opening and closing motor 21 opens the baffle 20, and the cable tie enters the take-up groove 19. If the take-up groove 19 is almost full, the material full sensor 22 controls the feeding wheel assembly 7 to stop feeding. If jamming or misalignment occurs, the cover plate 23 on the take-up groove 19 can be opened for cleaning.

[0028] 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 feeding mechanism for a high-speed strapping machine, comprising a frame and a strapping track and a welding mechanism mounted on the frame, wherein a strapping clamp is provided at the welding mechanism, and a feeding channel consisting of two clamping plates with a clearance fit is provided between the outlet of the strapping track and the welding mechanism, characterized in that, Inside the frame, along the feeding direction of the feed track, there are sequentially arranged feeding wheel sets and forward and reverse traction wheel sets. The feed track has notches at the feeding wheel sets and forward and reverse traction wheel sets respectively. Both the feeding wheel sets and the forward and reverse traction wheel sets include a driving wheel and a driven wheel. The welding mechanism is also equipped with a main motor that drives the cable tie clamp to open and close. The frame is equipped with a secondary tensioning roller and a linkage mechanism that is linked with the main motor and drives the secondary tensioning roller to approach the drive wheel of the forward and reverse traction wheel set.

2. The feeding mechanism of a high-speed strapping machine according to claim 1, characterized in that, A drive wheel block is coaxially fixedly connected to the shaft of the main motor. A protrusion is provided on the end face edge of the drive wheel block. The linkage mechanism includes a rocker arm, a pull rod, and a pressure roller frame. The middle part of the rocker arm is connected to the frame shaft. A roller that contacts the end face edge of the drive wheel block is rotatably mounted on one end of the rocker arm. The pull rod is hinged to the other end of the rocker arm. One end of the pressure roller frame is hinged to the frame. The pull rod is hinged to the other end of the pressure roller frame. The secondary tensioning pressure roller is rotatably mounted in the middle of the pressure roller frame. A traction spring connecting the frame and the middle of the pressure roller frame is also provided on the opposite side of the pull rod on the pressure roller frame.

3. The feeding mechanism of a high-speed strapping machine according to claim 1 or 2, characterized in that, The frame is also equipped with a take-up slot to accommodate excess cable ties. The feed track is also equipped with a take-up notch that connects to the take-up slot between the feed wheel set and the forward and reverse traction wheel set. A baffle covering the take-up notch and an opening and closing motor that drives the baffle to open and close are provided at the take-up notch.

4. The feeding mechanism of a high-speed strapping machine according to claim 3, characterized in that, The take-up trough is equipped with a material full sensor.

5. The feeding mechanism of a high-speed strapping machine according to claim 3, characterized in that, An inspection port is provided at the tape take-up notch on the tape take-up groove, and a cover plate is hinged to the tape take-up groove at the inspection port.

6. The feeding mechanism of a high-speed strapping machine according to claim 1 or 2, characterized in that, Feed sensors are installed on the feed track near the feed wheel assembly and the forward and reverse traction wheel assembly, respectively.

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