PET-PP tape hot melt bundling device
Patent Information
- Application Number
- CN202522431285.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-17
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-17
AI Technical Summary
Existing strapping cutting mechanisms have a short service life and are prone to damage, leading to increased maintenance costs.
The system uses a cam mechanism to drive the pressure belt cutting mechanism and hot knife for automatic cutting and welding, replacing the traditional double roller extrusion method. Combined with the belt feeding mechanism, it improves the stability of the equipment.
It has increased the service life of the equipment, reduced maintenance costs, and improved work efficiency and bundling accuracy.
Smart Images

Figure CN224929290U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automatic packaging technology, specifically to a PET-PP tape hot melt strapping device. Background Technology
[0002] Packaging strapping, also known as bundling strapping, is made primarily from polyethylene and polypropylene resin, though some are made from nylon and polyester. It is produced through extrusion and unidirectional stretching, followed by bluing. Besides being used for sealing and bundling corrugated boxes, hot-rolled steel coils, and cold-rolled steel coils, it is also used in steel structure companies to package pipes. Furthermore, it can be used in fully automated packaging, photovoltaic module bundling, and new energy battery module bundling.
[0003] The strapping needs to be cut during production and subsequent processes. Currently, the market mainly uses a double roller surface hard extrusion positioning and cutting mechanism, which has a shortened service life and is prone to damage, causing instability in the mechanical mechanism, resulting in damage to the strapping consumables and thus increasing maintenance costs. Summary of the Invention
[0004] The purpose of this invention is to provide a PET-PP tape hot melt strapping device to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a PET-PP tape hot melt strapping device, comprising a frame, a cam mechanism, a tape pressing and cutting mechanism, a hot knife, and a tape feeding mechanism. The cam mechanism includes a first cam, a second cam, and a third cam. The tape pressing and cutting mechanism includes a left pressing knife, a right pressing knife, and a cutter. The cam mechanism drives the tape pressing and cutting mechanism to press and cut the PET-PP tape. The hot knife welds the PET-PP tape pressed by the tape pressing and cutting mechanism. The belt feeding mechanism includes a belt feeding servo motor, a belt feeding pulley, a pressure roller, and a pressure cylinder. The belt feeding pulley is mounted on the drive end of the belt feeding servo motor. The pressure roller is rotatably connected to the belt feeding pulley. The pressure cylinder drives the pressure roller to make close contact with the belt feeding pulley. The top of the frame is provided with a belt feeding port, and the bottom of the frame is provided with a secondary belt feeding port and a belt outlet.
[0006] Preferably, the cam mechanism further includes a cam servo motor and a camshaft, wherein the first cam, the second cam, and the third cam are mounted on the camshaft, and the camshaft is connected to the cam motor via a transmission belt.
[0007] Preferably, the first cam is driven to connect to the left pressure knife, the second cam is driven to connect to the cutter, and the third cam is driven to connect to the right pressure knife.
[0008] Preferably, the hot knife is located below the cutter.
[0009] Preferably, the bottom end of the hot knife is provided with a pull plate.
[0010] Preferably, the secondary feed port is connected to a feed pipe, which extends to the left side of the left cutter.
[0011] Preferably, a guide block is provided on one side of the cutter.
[0012] Preferably, the clamping wheel is mounted on one end of the clamping shaft, and the other end of the clamping shaft is hinged to the frame.
[0013] Preferably, the clamping shaft is provided with a spring.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, by setting a cam mechanism to drive the pressure tape cutting mechanism and the friction welding mechanism, can automatically cut and weld the PET-PP tape used for bundling, replacing the existing manual welding and cutting methods, and improving work efficiency; Compared with the traditional double-sided wheel extrusion welding method, this utility model can improve the service life of the equipment, and its stable operation makes it less likely to damage the packaging materials, thus saving maintenance costs. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the servo motor of this utility model; Figure 3 This is a schematic diagram of the pressure cam of this utility model. Detailed Implementation
[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. 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.
[0017] Please see Figures 1 to 3This utility model provides a technical solution: a PET-PP tape hot melt strapping device, including a frame 1, a cam mechanism 2, a tape pressing and cutting mechanism 3, a hot knife 4, and a tape receiving and feeding mechanism 5. The cam mechanism 2 includes a first cam 21, a second cam 22, and a third cam 23. The tape pressing and cutting mechanism 3 includes a left pressing knife 31, a right pressing knife 32, and a cutter 33. The cam mechanism drives the tape pressing and cutting mechanism to press and cut the PET-PP tape. The hot knife 4 welds the PET-PP tape pressed by the tape pressing and cutting mechanism. The belt feeding mechanism 5 includes a belt feeding servo motor 51, a belt feeding pulley 52, a pressing wheel 53, and a pressing cylinder 54. The belt feeding pulley 52 is installed on the drive end of the belt feeding servo motor 51. The pressing wheel 53 is rotatably connected to the belt feeding pulley 52. The pressing cylinder 54 drives the pressing wheel 53 to press against the belt feeding pulley 52. The top of the frame 1 is provided with a feeding port 11, and the bottom of the frame 1 is provided with a secondary feeding port 12 and a discharging port 13.
[0018] Specifically, the cam mechanism 2 further includes a cam servo motor 24 and a camshaft 25. The first cam 21, the second cam 22 and the third cam 23 are mounted on the camshaft 25, and the camshaft 25 is connected to the cam motor 24 via a transmission belt 26.
[0019] Specifically, the first cam 21 drives and connects to the left pressure knife 31, the second cam 22 drives and connects to the cutter 32, and the third cam 23 drives and connects to the right pressure knife 33.
[0020] Specifically, the hot knife 4 is located below the cutter 32.
[0021] Specifically, the bottom end of the hot knife 4 is provided with a pull-down plate 6.
[0022] Specifically, the secondary feeding port 12 is connected to a feeding pipe 14, which extends to the left side of the left cutter. The PET-PP tape enters from the feeding port, exits from the exit port, and then enters again from the secondary feeding port, forming a circular shape with the strapping tape to secure the goods. The tape head re-enters and rests on the heat-sealing blade 4, which heats and fuses the tape head to the tape body.
[0023] Specifically, a guide block 7 is provided on one side of the cutter 32. The guide block 7 has a side opening facing the cutter, and the two ends of the side opening have bevels. The guide block mainly guides the strapping tape to be transported along a specific path, allowing the tape to pass smoothly and accurately through the feeding and receiving stages, avoiding tape deviation and twisting, ensuring smooth strapping action, improving strapping accuracy and quality, and allowing the tape to accurately reach the strapping position to complete the operation.
[0024] Specifically, the clamping roller 53 is mounted on one end of the clamping shaft 55, and the other end of the clamping shaft 55 is hinged to the frame 1. The clamping roller 53...
[0025] Specifically, a spring 56 is provided on the clamping shaft 55. The PET-PP strapping enters from the feed port 11 and wraps around the take-up pulley 52. The spring 56 can keep the strapping tightly closed.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A PET-PP tape hot-melt strapping device, characterized in that, The device includes a frame, a cam mechanism, a pressing and cutting mechanism, a hot-scaling knife, and a conveyor belt mechanism. The cam mechanism includes a first cam, a second cam, and a third cam. The pressing and cutting mechanism includes a left pressing knife, a right pressing knife, and a cutter. The cam mechanism drives the pressing and cutting mechanism to press and cut the PET-PP belt. The hot-scaling knife welds the PET-PP belt pressed by the pressing and cutting mechanism. The belt feeding mechanism includes a belt feeding servo motor, a belt feeding pulley, a pressure roller, and a pressure cylinder. The belt feeding pulley is mounted on the drive end of the belt feeding servo motor. The pressure roller is rotatably connected to the belt feeding pulley. The pressure cylinder drives the pressure roller to make close contact with the belt feeding pulley. The top of the frame is provided with a belt feeding port, and the bottom of the frame is provided with a secondary belt feeding port and a belt outlet.
2. The PET-PP tape hot-melt strapping device according to claim 1, characterized in that: The cam mechanism also includes a cam servo motor and a camshaft. The first cam, the second cam, and the third cam are mounted on the camshaft, and the camshaft is connected to the cam servo motor via a transmission belt.
3. The PET-PP tape hot-melt strapping device according to claim 2, characterized in that: The first cam drive is connected to the left pressure knife, the second cam drive is connected to the cutter, and the third cam drive is connected to the right pressure knife.
4. The PET-PP tape hot-melt strapping device according to claim 3, characterized in that: The hot knife is located below the cutter.
5. A PET-PP tape hot-melt strapping device according to claim 4, characterized in that: The bottom of the hot knife is equipped with a pull plate.
6. A PET-PP tape hot-melt strapping device according to claim 5, characterized in that: The secondary feed port is connected to a feed pipe, which extends to the left side of the left cutter.
7. A PET-PP tape hot-melt strapping device according to claim 6, characterized in that: A guide block is provided on one side of the cutter.
8. A PET-PP tape hot-melt strapping device according to claim 7, characterized in that: The clamping wheel is mounted on one end of the clamping shaft, and the other end of the clamping shaft is hinged to the frame.
9. A PET-PP tape hot-melt strapping device according to claim 8, characterized in that: A spring is provided on the clamping shaft.
