Cutter assembly lifting mechanism for packing machine

Abstract

The utility model discloses a cutter component lifting mechanism for a packing machine, which comprises a driving motor, a cutter component lifting mechanism and a cutter component lifting mechanism, and is characterized in that the driving motor is connected with a packing machine frame through a motor fixing seat; the transmission screw is in transmission connection with the driving motor; the lifting seat is in threaded connection with the transmission screw; the lifting seat limiting blocks are arranged on the two sides of the lifting seat, so that the lifting seat moves up and down in the channels of the lifting seat limiting blocks; and the cutter assembly is connected with the lifting seat. According to the cutter assembly lifting mechanism for the packing machine, the cutter holder is designed to be of an integrated structure, so that lifting of the cutter assembly can be completed only through one driving mechanism, meanwhile, the front cutter is connected with the front cutter holder through the spring, the rear cutter is connected with the rear cutter holder through the spring, and the moving process of the front cutter and the moving process of the rear cutter are adjusted. Compared with a three-cam structure in the prior art, the lifting mechanism of the cutter assembly has the advantages that the lifting process of the cutter holder assembly is completed, the structure is simpler, maintenance is convenient, and cost is saved.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a lifting mechanism for a cutting blade assembly of 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 assembly of existing packaging machines is divided into three parts. Each part of the cutting assembly is raised and lowered by three cams driven by a motor. This structure involves many parts, making it relatively complex and requiring frequent maintenance. Utility Model Content

[0003] This utility model addresses the shortcomings of existing technologies by providing a simple structure and low failure rate lifting mechanism for the cutting component of a packaging machine.

[0004] The purpose of this utility model is achieved in the following manner: a lifting mechanism for a cutter assembly of a packaging machine, comprising:

[0005] The drive motor is connected to the packaging machine frame via a motor mounting bracket.

[0006] The transmission screw is connected to the drive motor in a transmission manner;

[0007] The lifting seat is threadedly connected to the transmission screw.

[0008] Lifting seat limiting blocks are provided on both sides of the lifting seat, allowing the lifting seat to move up and down within the channel of the lifting seat limiting blocks;

[0009] The cutting blade assembly is connected to the lifting seat.

[0010] The cutting blade assembly includes:

[0011] An integrated tool holder is connected to the lifting seat;

[0012] The central blade is located in the middle of the integrated blade holder;

[0013] The front blade is mounted on an integrated blade holder on one side of the feed belt of the middle blade;

[0014] The rear blade is mounted on an integrated blade holder on one side of the middle blade's output belt;

[0015] The front and rear blades are connected to an integrated blade holder via springs.

[0016] In this invention, the blade holder is an integrated structure, so only one drive mechanism is needed to complete the lifting and lowering action of the cutting blade assembly. The motor screw lifting mechanism is simple and easy to maintain. The front blade and the rear blade are connected to the integrated blade holder by springs. During the operation of the drive mechanism, the springs complete the asynchronous movement of the front blade, the middle blade, and the rear blade, so that the front blade, the middle blade, and the rear blade can complete their respective pressing and padding functions.

[0017] As an optional solution to the technical solution of this utility model, the integrated tool holder includes:

[0018] The middle knife holder is located at the top of the lifting seat;

[0019] The front tool holder is connected to the feed side of the middle tool holder;

[0020] The rear cutter holder is connected to the side of the middle cutter holder where the belt exits.

[0021] The front and rear tool holders extend toward the drive motor, and each of the front and rear tool holders has a cavity that can accommodate the sliding of the front and rear tools, with the spring located within the cavity.

[0022] As an optional solution of the present utility model, guide posts are provided on the bottom walls of both the front and rear cutters, and the guide posts are slidably connected to the positioning holes provided on the top walls of the front and rear cutter seats.

[0023] This design aims to make the front and rear blades more stable when they move under the action of springs.

[0024] The beneficial effects of this utility model are:

[0025] (1) The lifting mechanism of the cutting blade assembly of the packaging machine of this utility model is designed as an integrated structure. Therefore, only one drive mechanism is needed to complete the lifting of the cutting blade assembly. At the same time, springs are used to connect the front blade to the front blade holder and the rear blade to the rear blade holder to adjust the movement of the front blade and the rear blade. The lifting mechanism of this cutting blade assembly is simpler than the existing technology which uses a three-cam structure to make the cutting blade assembly complete the lifting process. It is easier to maintain and saves costs.

[0026] (2) In this utility model, a cavity is provided on the front and rear tool holders to accommodate the movement of the front and rear tools, and a guide post is used for limiting the movement, so that the front and rear tools are more stable during movement. Attached Figure Description

[0027] 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.

[0028] Figure 1 This is a schematic diagram of the lifting mechanism of the cutter assembly for the packaging machine of this utility model;

[0029] Figure 2 A schematic diagram of the lifting mechanism of the cutting assembly of the packaging machine of this utility model, with one lifting seat limiting block removed;

[0030] Figure 3 This is a partial cross-sectional view of the rear tool holder in this utility model.

[0031] Figure label:

[0032] 1-Drive motor; 2-Transmission screw; 3-Lifting seat; 4-Lifting seat limiting block; 5-Cutter assembly; 51-Integrated cutter holder; 511-Middle cutter holder; 512-Front cutter holder; 513-Rear cutter holder; 52-Middle cutter; 53-Front cutter; 54-Rear cutter; 55-Spring; 56-Guide post; 57-Positioning hole. Detailed Implementation

[0033] 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.

[0034] 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.

[0035] 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.

[0036] like Figure 1-3 As shown, a cutting assembly lifting mechanism for a packaging machine includes: a drive motor 1, a transmission screw 2, a lifting seat 3, a lifting seat limiting block 4, and a cutting assembly 5. The drive motor 1 is connected to the packaging machine frame via a motor mounting bracket; the transmission screw 2 is connected to the drive motor 1 via a transmission connection; the lifting seat 3 is threadedly connected to the transmission screw 2; the lifting seat limiting block 4 is located on both sides of the lifting seat 3, allowing the lifting seat 3 to move up and down within the channel of the lifting seat limiting block 4; and the cutting assembly 5 is connected to the lifting seat 3.

[0037] Specifically, the cutting assembly 5 includes: an integrated blade holder 51, a middle blade 52, a front blade 53, and a rear blade 54, wherein: the integrated blade holder 51 is connected to the lifting seat 3; the middle blade 52 is located in the middle of the integrated blade holder 51; the front blade 53 is located on the integrated blade holder 51 on the side of the middle blade 52 that is infeeding; the rear blade 54 is located on the integrated blade holder 51 on the side of the middle blade 52 that is outfeeding; the front blade 53 and the rear blade 54 are connected to the integrated blade holder 51 by a spring 55.

[0038] During the packaging process, the cable tie head passes through the inlet of the front knife 53, through the top of the middle knife 52 and the rear knife 54, and after passing through the conveyor belt, it re-enters the upper end of the middle knife 52 from the top of the front knife 53. At this time, the drive motor 1 rotates, driving the transmission screw 2 to rotate, causing the lifting seat 3 to move upward under the action of the transmission screw 2, which in turn causes the integrated knife holder 51 to rise, so that the front knife 53 presses the upper layer of cable tie tightly onto the top cover. Under the action of the tensioning mechanism, the cable tie is tightened, and the drive motor 1 continues to work, causing the integrated knife holder 51 to rise, so that the rear knife 54 presses the lower layer of cable tie tightly onto the top cover. Then, the heating head heats and melts the lower layer of cable tie. Then, the drive motor 1 continues to work, causing the integrated knife holder 51 to rise, so that the middle knife 52 presses the upper and lower layers of cable tie tightly onto the top cover, completing the bonding of the upper and lower layers of cable tie. Then, the drive motor 1 reverses, causing the integrated knife holder 51 to descend, completing the packaging process. Because of the presence of spring 55, the front cutter 53 and the rear cutter 54 have a certain amount of movement margin during the up-and-down movement of the integrated cutter holder 51. Therefore, the front cutter 53 and the rear cutter 54 do not require separate lifting mechanism control. Thus, compared with the existing technology that uses a three-cam structure to complete the lifting process of the cutter holder assembly, the structure is simpler, easier to maintain, and saves costs.

[0039] The top cover, the tightening mechanism, and the heating head are the same as those in existing technologies, so they will not be described in detail here.

[0040] like Figure 3 As shown, as a further embodiment, the integrated tool holder 51 includes: a middle tool holder 511, a front tool holder 512, and a rear tool holder 513, wherein: the middle tool holder 511 is located on the top of the lifting seat 3; the front tool holder 512 is connected to the belt inlet side of the middle tool holder 511; the rear tool holder 513 is located on the belt outlet side of the middle tool holder 511; the front tool holder 512 and the rear tool holder 513 extend toward the drive motor 1, and the front tool holder 512 and the rear tool holder 513 are respectively provided with chambers that can accommodate the sliding of the front tool 53 and the rear tool 54, and the spring 55 is located in the chamber.

[0041] In addition, guide posts 56 are provided on the bottom walls of the front cutter 53 and the rear cutter 54, and the guide posts 56 are slidably connected to the positioning holes 57 provided on the top walls of the front cutter holder 512 and the rear cutter holder 513.

[0042] In this embodiment, chambers for accommodating the movement of the front cutter 53 and the rear cutter 54 are provided on the front cutter holder 512 and the rear cutter holder 513, and guide posts 56 are used for limiting their movement, making the front cutter 53 and the rear cutter 54 more stable during movement.

[0043] 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 lifting mechanism for a cutting assembly of a packaging machine, characterized in that, include: The drive motor (1) is connected to the packaging machine frame via a motor mounting bracket; The transmission screw (2) is connected to the drive motor (1) in a transmission manner; The lifting seat (3) is threadedly connected to the transmission screw (2); Lifting seat limiting block (4) is provided on both sides of the lifting seat (3) so that the lifting seat (3) can move up and down in the channel of the lifting seat limiting block (4); The cutter assembly (5) is connected to the lifting seat (3); The cutting blade assembly (5) includes: An integrated tool holder (51) is connected to the lifting seat (3); The central blade (52) is located in the middle of the integrated blade holder (51); The front blade (53) is mounted on an integral blade holder (51) on one side of the feed belt of the middle blade (52); The rear blade (54) is located on an integral blade holder (51) on one side of the middle blade (52); The front blade (53) and rear blade (54) are connected to the integrated blade holder (51) by a spring (55).

2. The lifting mechanism for a cutting assembly of a packaging machine according to claim 1, characterized in that, The integrated tool holder (51) includes: The middle knife seat (511) is located on the top of the lifting seat (3); The front tool holder (512) is connected to the feed side of the middle tool holder (511); The rear cutter holder (513) is connected to the side of the middle cutter holder (511) where the belt exits. The front tool holder (512) and the rear tool holder (513) extend toward the drive motor (1). The front tool holder (512) and the rear tool holder (513) are respectively provided with a cavity that can accommodate the sliding of the front tool (53) and the rear tool (54). The spring (55) is located in the cavity.

3. The lifting mechanism for the cutter assembly of a packaging machine according to claim 1, characterized in that, Guide posts (56) are provided on the bottom walls of the front cutter (53) and the rear cutter (54), and the guide posts (56) are slidably connected to the positioning holes (57) provided on the top walls of the front cutter holder (512) and the rear cutter holder (513).

Images