Binding belt cutting mechanism of packing machine

Abstract

The utility model discloses a bundling belt cutting mechanism of a packing machine, which comprises a tool apron assembly, a cutting mechanism and a cutting mechanism, the hot melting cutter assembly is arranged on one side of the cutter holder assembly, is matched with the cutter holder assembly and is used for carrying out hot melting cutting on the cable tie; the gland assembly is arranged on one side of the tool apron assembly and used for fixing a ribbon between the tool apron assembly and the gland assembly; according to the bundling belt cutting mechanism of the packing machine, shearing force between the tool apron and the front tool is not needed to cut off the bundling belt, the bundling belt is cut off through the cutter arranged on the heating piece, the heating piece firstly conducts hot melting on the bundling belt, the bundling belt is easily cut off, when the heating piece retreats, the cutter is driven to cut off the hot-melted bundling belt, the stress of the cutter is small, and therefore the bundling belt can be cut off easily. Therefore, the device is not easy to damage.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a strapping cutting mechanism for a packing machine. Background Technology

[0002] A strapping machine, also known as a bundling machine or strapping machine, is a machine that uses strapping tape to wrap around products or packages, then tightens it and connects the ends by heat fusion or using buckles. Its function is to ensure the strapping tape adheres tightly to the surface of the bundled goods, preventing them from scattering during transportation and storage, while also ensuring neat and aesthetically pleasing bundling. Strapping machines can be categorized by strapping material into PP strapping machines, PET strapping machines, and steel strapping machines; and by performance into four main categories: manual strapping machines, semi-automatic strapping machines, automatic strapping machines, and fully automatic unmanned strapping machines. Manual strapping machines require manual operation to complete the entire process. Semi-automatic strapping machines require manual insertion of the strapping tape before the machine completes the strapping process. Automatic strapping machines do not require manual strapping; they complete the strapping process after being triggered. Triggering methods include manual, continuous, ball switch, and foot switch; simply pressing the switch automatically completes the strapping, making it convenient and fast. Fully automatic strapping machines require neither manual strapping nor triggering; simply setting the appropriate parameters completes the entire strapping process. Currently, the cutting mechanism of existing packaging machines typically uses heat to melt the cable tie, and then the blade holder rises to generate shearing force between the blade and the cable tie, thereby cutting the cable tie. This cutting method cuts the unmelted part of the cable tie. Because the cable tie is relatively hard, the shearing force is large, which increases the wear on the blade and greatly shortens the service life of the blade. The specific technical solution is disclosed in patent CN105000207A. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing a strapping machine strap cutting mechanism that can effectively cut straps and has a long cutter life.

[0004] The purpose of this utility model is achieved in the following way: A strapping machine cable tie cutting mechanism, comprising:

[0005] The knife holder assembly is used to securely hold cable ties.

[0006] A hot melt cutter assembly is located on one side of the cutter holder assembly and cooperates with the cutter holder assembly to perform hot melt cutting of cable ties;

[0007] A pressure cap assembly is disposed on one side of the blade holder assembly and is used to fix the cable tie between the blade holder assembly and the pressure cap assembly;

[0008] The tool holder assembly includes:

[0009] The tool holder lifting seat is connected to the tool holder lifting drive mechanism;

[0010] The tool holder is located at the top of the tool holder lifting seat;

[0011] A front cutter is located on the side of the cable tie feeder of the cutter holder, and the front cutter has a cable tie feeder opening;

[0012] The rear cutter is located on the side of the cable tie outlet of the cutter holder;

[0013] The hot melt cutting blade assembly includes:

[0014] A hot melt cutter moving slide is located on one side of the cutter holder lifting seat and is connected to the hot melt cutter moving drive mechanism;

[0015] A heating element is located at the top of the hot melt cutter moving slide and faces the cutter holder.

[0016] A cutter is located at the front end of the heating element, near the side of the front cutter.

[0017] In this invention, the cable tie enters through the inlet on the front cutter. Under the action of the cutter holder lifting seat and the pressure cap assembly, the cable tie is fixed. After being heated and melted by the heating plate, the cable tie is cut by the cutter on the heating plate. Since the cable tie is easy to cut after being heated and melted, the damage to the cutter is small. Furthermore, the cable tie is cut simultaneously during the retraction of the heating plate, thus improving the cutting efficiency.

[0018] As an optional solution to the technical solution of this utility model, the tool holder assembly further includes:

[0019] A front cutter holder is used to connect the front cutter to the cutter holder lifting seat;

[0020] The rear cutter holder is used to connect the rear cutter to the cutter holder lifting seat.

[0021] In this invention, the front cutter holder, the rear cutter holder, and the cutter holder lifting seat are an integrated structure, and only one cutter holder lifting drive mechanism is needed to complete the lifting process of the cutter holder assembly.

[0022] As an optional solution to the technical solution of this utility model, the front cutter holder and / or rear cutter holder includes:

[0023] A cutting blade sliding chamber for the vertical movement of the front and / or rear cutting blades;

[0024] A spring is disposed between the bottom of the front cutter and / or the rear cutter and the bottom wall of the cutter sliding chamber;

[0025] A thick adjusting screw is used to connect to the threaded hole on the top wall of the front cutter holder and / or the rear cutter holder.

[0026] This design aims to ensure that, during the clamping and securing process of the cable tie, the front and / or rear cutters, under the action of spring return, make the cable tie more tightly pressed against the capping assembly.

[0027] As an optional solution to the technical solution of this utility model, the capping assembly includes:

[0028] A capping moving seat is located on the knife holder lifting seat and is connected to the capping moving drive mechanism;

[0029] A pressure cap, located on top of the pressure cap movable seat, is used to secure the cable tie between the knife holder assembly and the pressure cap.

[0030] The pressure cap moving seat moves the pressure cap to complete the clamping of the cable ties and then retracts, making it easy for the cable ties to pop out smoothly after packaging.

[0031] As an optional solution to the technical solution of this utility model, the knife holder lifting drive mechanism, the hot melt cutting knife moving drive mechanism, and the pressure cap moving drive mechanism are linear slide mechanisms, screw moving mechanisms, or hydraulic cylinder drive mechanisms.

[0032] The beneficial effects of this utility model are:

[0033] (1) The strapping machine of this utility model does not require the shearing force between the blade holder and the front blade to cut the strapping. Instead, it relies on the cutter set on the heating plate to cut the strapping. Since the heating plate heats and melts the strapping first, the strapping is easy to cut. When the heating plate moves backward, it drives the cutter to cut the heat-melted strapping. The cutter is subjected to less force and is therefore less likely to be damaged.

[0034] (2) In this utility model, the front cutter holder, the rear cutter holder and the cutter holder lifting seat are integrated into one structure. Only one cutter holder lifting drive mechanism is needed to make the cutter holder assembly complete the lifting process. This is simpler than the existing technology that uses three cam structures to make the cutter holder assembly complete the lifting process.

[0035] (3) The front cutter and / or the rear cutter are connected to the front cutter holder and / or the rear cutter holder spring through springs. During the process of pressing the cable tie, under the action of spring reset, the front cutter and / or the rear cutter will press the cable tie more tightly against the cover assembly.

[0036] (4) The capping assembly includes a capping moving seat and a capping on top of the capping moving seat. The capping moving seat moves the capping and exits after completing the clamping of the cable tie, so that the cable tie can be easily ejected after packaging. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments 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.

[0038] Figure 1 This is a schematic diagram of the strapping cutting mechanism of the packaging machine of this utility model;

[0039] Figure 2 This is a schematic diagram of the structure of the tool holder assembly in this utility model;

[0040] Figure 3 This is a schematic diagram of the hot melt cutting blade assembly in this utility model;

[0041] Figure 4 This is a schematic diagram of the structure of the pressure cap assembly in this utility model;

[0042] Figure 5 This is a partial cross-sectional view of the rear tool holder in the tool holder assembly of this utility model.

[0043] Figure label:

[0044] 100-Tool holder assembly; 101-Tool holder lifting seat; 102-Tool holder; 103-Front cutter; 104-Rear cutter; 105-Belt inlet; 106-Front cutter holder; 107-Rear cutter holder; 108-Cutter sliding chamber; 109-Spring; 110-Adjusting screw with thickened core; 111-Threaded hole;

[0045] 200-Hot melt cutter assembly; 201-Hot melt cutter sliding block; 202-Heating element; 203-Cutter;

[0046] 300 - Cap assembly; 301 - Cap moving seat; 302 - Cap. Detailed Implementation

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0048] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0049] In the description of the embodiments, unless otherwise expressly specified and limited, the terms "set," "connect," etc., should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or a connection through an intermediate medium, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] like Figure 1 As shown, a cable tie cutting mechanism for a strapping machine includes: a blade holder assembly 100, a hot melt cutter assembly 200, and a pressure cap assembly 300, wherein: the blade holder assembly 100 is used to fix and place the cable tie; the hot melt cutter assembly 200 is disposed on one side of the blade holder assembly 100 and cooperates with the blade holder assembly 100 to perform hot melt cutting on the cable tie; the pressure cap assembly 300 is disposed on one side of the blade holder assembly 100 and is used to fix the cable tie between the blade holder assembly 100 and the pressure cap assembly 300;

[0051] Specifically, such as Figure 2 As shown, the knife holder assembly 100 includes: a knife holder lifting seat 101, a knife holder 102, a front cutter 103, and a rear cutter 104, wherein: the knife holder lifting seat 101 is connected to the knife holder lifting drive mechanism; the knife holder 102 is located on the top of the knife holder lifting seat 101; the front cutter 103 is located on the side of the knife holder 102 where the cable tie enters, and the front cutter 103 has a cable tie inlet 105; the rear cutter 104 is located on the side of the knife holder 102 where the cable tie exits; the cable tie head enters from the cable tie inlet 105, exits from the rear cutter 104, passes through the conveyor belt of the packaging machine, and the cable tie head re-enters the knife holder from the cable tie inlet 105, where the front cutter 103, the rear cutter 104, and the capping assembly 300 fix and press the cable tie tightly.

[0052] like Figure 3 As shown, the hot melt cutter assembly 200 includes a hot melt cutter moving slide 201, a heating plate 202, and a cutter 203, wherein: the hot melt cutter moving slide 201 is located on one side of the cutter holder lifting seat 101 and is connected to the hot melt cutter moving drive mechanism; the heating plate 202 is located at the top of the hot melt cutter moving slide 201 and faces the cutter holder 102; the cutter 203 is located at the front end of the heating plate 202 near the front cutter 103.

[0053] After the cable ties are secured, the heating plate 202 moves forward under the action of the hot melt cutter moving slide 201. The cutter rises and delivers the lower layer of cable ties to the heating plate 202. After the heating plate 202 heats and melts the lower layer of cable ties, it moves backward under the action of the hot melt cutter moving slide 201. At the same time, the cutter 203 on the heating plate 202 cuts the lower layer of cable ties. Since the cable ties are easy to cut after being hot melted, the damage to the cutter 203 is small, and the cutting efficiency is improved.

[0054] As a further solution to this embodiment, such as Figure 2 As shown, the blade holder assembly 100 also includes a front cutter holder 106 and a rear cutter holder 107, wherein: the front cutter holder 106 is used to connect the front cutter 103 to the blade holder lifting seat 101; and the rear cutter holder 107 is used to connect the rear cutter 104 to the blade holder lifting seat 101.

[0055] In this embodiment, the front cutter holder 106, the rear cutter holder 107, and the cutter holder lifting seat 101 are an integral structure. Only one cutter holder lifting drive mechanism is needed to make the cutter holder assembly 100 complete the lifting process, which is simpler than the existing technology that uses a three-cam structure to make the cutter holder assembly complete the lifting process.

[0056] Specifically, such as Figure 2 , 5 As shown, the front cutter holder 106 and / or the rear cutter holder 107 include: a cutter sliding chamber 108, a spring 109, a thick-fitting adjusting screw 110, and a threaded hole 111. The cutter sliding chamber 108 accommodates the front cutter 103 and / or the rear cutter 104, and has an open upper end. During the up-and-down movement of the front cutter holder 106 and / or the rear cutter holder 107, the front cutter 103 and / or the rear cutter 104 can slide within the cutter sliding chamber 108. Spring 109 is located between the bottom of the front cutter 103 and / or the rear cutter 104 and the bottom wall of the cutter sliding chamber 108; Thickness adjustment screw 110 is connected to the threaded hole 111 on the top wall of the front cutter holder 106 and / or the rear cutter holder 107. According to the thickness of the cable tie, the distance between the nut of the thickness adjustment screw 110 and the top wall of the front cutter holder 106 and / or the rear cutter holder 107 is adjusted, thereby adjusting the distance between the front cutter 103 and / or the rear cutter 104 and the pressure cap 302.

[0057] During the process of clamping and fixing the cable tie, the spring 109 is compressed between the front cutter 103 and / or the rear cutter 104 and the front cutter holder 106 and / or the rear cutter holder 107. Under the action of spring return, the front cutter and / or the rear cutter make the cable tie more tightly pressed against the cover assembly.

[0058] As a further solution to this embodiment, such as Figure 2 , 4 As shown, the capping assembly 300 includes a capping moving seat 301 and a capping 302. The capping moving seat 301 is located on the knife holder lifting seat 101 and is connected to the capping moving drive mechanism. The capping 302 is located on top of the capping moving seat 301 and is used to fix the cable tie between the knife holder assembly 100 and the capping 301. The capping moving seat 301 drives the capping to move and exits after completing the clamping work of the cable tie, so that the cable tie can be easily ejected after packaging.

[0059] In addition, the knife holder lifting drive mechanism, the hot melt cutting knife moving drive mechanism, and the pressure cap moving drive mechanism in this embodiment can be adopted as a linear slide mechanism, a screw moving mechanism, or a hydraulic cylinder drive mechanism.

[0060] The cable tie cutting mechanism of this utility model does not require the shearing force between the knife holder and the front knife to cut the cable tie. Instead, it relies on the cutter 203 set on the heating plate 202 to cut the cable tie. Since the heating plate 202 first heat-melts the cable tie, the cable tie is easy to cut. When the heating plate 202 retracts, it drives the cutter 203 to cut the heat-melted cable tie. The cutter 203 is subjected to less force, so it is not easily damaged, thus increasing the service life of the cutter 203.

[0061] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope claimed by this utility model.

Claims

1. A strapping machine cable tie cutting mechanism, characterized in that, include: The knife holder assembly (100) is used to securely hold cable ties. A hot melt cutter assembly (200) is disposed on one side of the cutter holder assembly (100) and cooperates with the cutter holder assembly (100) to perform hot melt cutting of the cable tie; A pressure cap assembly (300) is disposed on one side of the knife holder assembly (100) and is used to fix the cable tie between the knife holder assembly (100) and the pressure cap assembly (300); The tool holder assembly (100) includes: The tool holder lifting seat (101) is connected to the tool holder lifting drive mechanism; The tool holder (102) is located on top of the tool holder lifting seat (101); A front cutter (103) is provided on one side of the cable tray inlet of the cutter holder (102), and the front cutter (103) is provided with a cable tray inlet (105). The rear cutter (104) is located on the side of the strap outlet of the cutter holder (102); The hot melt cutter assembly (200) includes: A hot melt cutter moving slide (201) is located on one side of the cutter holder lifting seat (101) and is connected to the hot melt cutter moving drive mechanism; A heating element (202) is disposed at the top of the hot melt cutter moving slide (201) and faces the cutter holder (102); A cutter (203) is located at the front end of the heating element (202) on the side near the front cutter (103).

2. The strapping machine cable tie cutting mechanism according to claim 1, characterized in that, The tool holder assembly (100) further includes: A front cutter holder (106) is used to connect the front cutter (103) to the cutter holder lifting seat (101); The rear cutter holder (107) is used to connect the rear cutter (104) to the cutter holder lifting seat (101).

3. The strapping machine cable tie cutting mechanism according to claim 2, characterized in that, The front cutter holder (106) and / or rear cutter holder (107) include: A cutting blade sliding chamber (108) is provided for the up-and-down movement of the front cutting blade (103) and / or the rear cutting blade (104); A spring (109) is disposed between the bottom of the front cutter (103) and / or the rear cutter (104) and the bottom wall of the cutter sliding chamber (108); A thick adjusting screw (110) is connected to a threaded hole (111) on the top wall of the front cutter holder (106) and / or the rear cutter holder (107).

4. The strapping cutting mechanism for a packaging machine according to claim 1, characterized in that, The gland assembly (300) includes: A cap moving seat (301) is provided on the knife holder lifting seat (101) and connected to the cap moving drive mechanism; A pressure cap (302) is disposed on top of the pressure cap moving seat (301) for securing the cable tie between the knife holder assembly (100) and the pressure cap (302).

5. The strapping machine cable tie cutting mechanism according to claim 4, characterized in that, The lifting drive mechanism of the cutter holder, the moving drive mechanism of the hot melt cutter, and the moving drive mechanism of the pressure cap are linear slide mechanisms, screw moving mechanisms, or hydraulic cylinder drive mechanisms.

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