Edge trimmer for BOPP film production

Abstract

The utility model discloses an edge trimmer for BOPP (biaxially-oriented polypropylene) film production, and relates to the technical field of film production, the edge trimmer comprises an operation machine table and a film body, the film body is wound on the outer side of a cylinder core, the film body and the cylinder core are positioned and installed through an erecting assembly, and the erecting assembly comprises a first motor, a shaft sleeve, a moving rod, a clamping groove, a moving seat and a clamping rod. A cutting mechanism is further arranged at the top end of the operation machine table. According to the edge trimmer for BOPP film production, by arranging the erecting assembly, when the edge trimmer is used, a film body and a cylinder core only need to be placed between two moving rods, and erecting installation and rotary edge trimming operation of the film body can be achieved through linkage cooperation of a first motor, a shaft sleeve, the moving rods, a clamping groove, a driving mechanism, a moving base and a clamping rod; and the adjusting and positioning operations in the whole trimming process are all automatic operations of a machine, so that the film body and the cylinder core are convenient and rapid to mount and dismount, the labor intensity of workers is reduced, and the trimming efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of film production technology, specifically to a trimming machine for BOPP film production. Background Technology

[0002] BOPP film (biaxially oriented polypropylene film) is a polymer film widely used in packaging, printing and labeling. It has high strength, good transparency, excellent barrier properties, and excellent moisture resistance and chemical corrosion resistance. In the production and processing of BOPP film, an edge trimming machine is required for edge trimming.

[0003] Existing trimming machines have a simple collection box structure, where cut edge waste falls and requires manual cleaning. Cleaning necessitates opening the collection box, making the process cumbersome and inefficient. To overcome these shortcomings, existing technology (Chinese patent application number 202321966729.5, application date 2023-07-25) describes a trimming machine for BOPP film production. This machine uses a second pusher to move a first baffle, disengaging the second baffle from the slot. The first pusher's activation moves a pusher plate within the box, thus removing waste material from the box. Waste material is pushed from the empty trough into the collection box for collection. This process does not require disassembling the box, making it easy to clean the waste material inside the box. The operation is simple and the cleaning efficiency is high. However, in the existing technology, when the rolled film needs to be trimmed, it is necessary to manually adjust the distance between the two rotating shafts and insert the film core between the two rotating shafts before the cutting blade can be started to trim the film. After trimming, the two rotating shafts need to be pushed away to remove the film core. The operation is relatively cumbersome, the labor intensity of workers is high, and the trimming efficiency is low.

[0004] To address the aforementioned issues, there is an urgent need for innovative design based on existing equipment. Therefore, we have proposed a trimming machine for BOPP film production that can effectively solve these problems. Utility Model Content

[0005] The purpose of this utility model is to provide a trimming machine for BOPP film production, so as to solve the problems mentioned in the background art. In the prior art, when trimming the wound film, it is necessary to manually adjust the distance between the two rotating shafts and insert the film core between the two rotating shafts before the cutting blade can be started to trim the film. After trimming, it is also necessary to push the two rotating shafts away to remove the film core. The operation is cumbersome, the labor intensity of workers is high, and the trimming efficiency is low.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a trimming machine for BOPP film production, comprising an operating table, the operating table being used to trim the film body, and the film body being wound around the outside of a core; the film body and the core are positioned and installed by a mounting assembly, the mounting assembly including a first motor mounted on one side of the top of the operating table via a support base, and bushings provided on the output end of the first motor and the other side of the operating table, the inner side of the bushings being limited to sliding moving rods, and one side of the two moving rods being limited to insert into the two sides of the core, the outer wall of the moving rods being provided with slots, the top of the operating table being provided with two moving seats, and the two moving seats being moved synchronously closer or further away by a drive mechanism, the top of the moving seats being fixedly connected with locking rods, and one end of the two locking rods being correspondingly locked into the inner side of the slots of the two moving rods, the top of the operating table also being slidably provided with a cutting mechanism for positioning and trimming the film body.

[0007] Preferably, the cutting mechanism consists of a positioning and moving part at the bottom and a cutting part at the top, and the positioning and moving part can perform intelligent positioning and moving according to the input data.

[0008] Preferably, the inner walls of the cylinder core and the bushing are provided with symmetrically distributed protrusions, and the outer wall of the moving rod is provided with symmetrically distributed grooves, with the protrusions sliding inside the grooves.

[0009] Preferably, the drive mechanism consists of a second motor fixedly installed on the top of the operating platform and a bidirectional lead screw fixed at its output end, and two movable seats are symmetrically threaded to the outside of the bidirectional lead screw.

[0010] Preferably, the top of the operating platform is provided with two sets of slide rails, and the two movable seats are respectively limited to slide on the two sets of slide rails, and the movement limit of the movable seats in the slide rails matches the depth of the bushing.

[0011] Preferably, a collection trough is provided inside the top of the operating platform corresponding to the two moving rods below, and a collection box is placed at one end of the operating platform, with the collection trough extending to the top of the collection box.

[0012] Preferably, an L-shaped positioning frame is fixedly connected to the bottom of one end of the operating platform, and the positioning frame surrounds the bottom outside of the collection box. The end of the positioning frame is rotatably connected to a limiting rod through a fixing pin, and the limiting rod blocks one side of the collection box.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This BOPP film production trimming machine, by setting up a mounting assembly, only requires placing the film body and core between two moving rods during use. The film body can then be mounted, installed, and rotated for trimming through the coordinated operation of the first motor, bushing, moving rods, slots, drive mechanism, moving seat, and locking rod. Furthermore, the entire trimming process, including adjustment and positioning, is fully automated, making the installation and disassembly of the film body and core convenient and quick, thereby reducing the labor intensity of workers and improving trimming efficiency. The specific contents are as follows: (1) By setting up the mounting components, when in use, the film body and the core are placed between the two moving rods, and the core can be mounted by the sequential linkage of the drive mechanism, the moving seat, the clamping rod and the moving rod. Then, the core is rotated by the cooperation of the first motor, the bushing and the moving rod. At the same time, the cutting mechanism positions and cuts the rotating film body. The adjustment and positioning operations of the entire trimming process are all automated operations of the machine, which makes the installation and disassembly of the film body and the core convenient and fast, thereby reducing the labor intensity of workers and improving the trimming efficiency.

[0014] (2) By limiting the sliding of the cylinder core and the bushing on the protrusion and the groove on the moving rod, the axial positioning of the cylinder core, bushing and moving rod can be achieved, thereby realizing the effect that the first motor can drive the bushing, moving rod and cylinder core to rotate in sequence.

[0015] (3) By using the collection trough and the collection box together, when the trimming is completed, the waste cut off from both sides of the film body will automatically fall into the collection trough and eventually slide into the inside of the collection box, thus realizing the automatic collection of waste.

[0016] (4) By using the positioning frame and the limiting rod to fix the position of the collection box, it can prevent the box from shifting and causing waste to be missed. When the collection box is full of waste, simply rotate the limiting rod upward to release the blockage of the collection box, and the collection box can be pulled out for waste disposal. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the operating platform of this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0021] Figure 5This is a cross-sectional structural diagram of the bushing and core of this utility model;

[0022] Figure 6 This is a schematic diagram of the connection structure between the locking rod and the moving rod of this utility model.

[0023] In the diagram: 1. Operating platform; 2. Film body; 3. Core tube; 4. First motor; 5. Bushing; 6. Moving rod; 7. Slot; 8. Second motor; 9. Bidirectional lead screw; 10. Moving seat; 11. Locking rod; 12. Cutting mechanism; 13. Collection trough; 14. Collection box; 15. Positioning frame; 16. Limiting rotating rod. Detailed Implementation

[0024] 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.

[0025] Example 1: Please refer to Figures 1-6 This utility model provides the following technical solution: a trimming machine for BOPP film production, including an operating table 1, which is used to trim the film body 2, and the film body 2 is wound around the outside of the core 3; the film body 2 and the core 3 are positioned and installed by a mounting assembly, which includes a first motor 4 mounted on one side of the top of the operating table 1 via a support base, and bushings 5 ​​are provided on the output end of the first motor 4 and on the other side of the operating table 1, with sliding moving rods 6 limited on the inner side of the bushings 5, and one side of the two moving rods 6 being limited and inserted into the inner sides of the core 3, and slots 7 being provided on the outer wall of the moving rods 6; two moving seats 10 are provided at the top of the operating table 1, and the two moving seats 10 are moved by a drive mechanism, wherein the drive mechanism... The mechanism consists of a second motor 8 fixedly installed on the top of the operating platform 1 and a bidirectional lead screw 9 fixed at its output end. Two moving seats 10 are symmetrically threaded to the outside of the bidirectional lead screw 9 to drive the two moving seats 10 to move synchronously closer or further apart. The top of the moving seat 10 is fixedly connected to a locking rod 11, and one end of the two locking rods 11 is correspondingly locked into the inner side of the locking groove 7 of the two moving rods 6. The top of the operating platform 1 is also slidably provided with a cutting mechanism 12 for positioning and trimming the film body 2. The cutting mechanism 12 consists of a positioning and moving part at the bottom and a cutting part at the top. The positioning and moving part can intelligently position and move according to the input data. When it moves to the designated position, the cutting part starts to cut the film body 2, thus realizing the automated trimming operation.

[0026] By setting up the mounting components, during use, simply place the film body 2 and the core 3 between the two moving rods 6, aligning the moving rods 6 with the core 3. The drive mechanism then activates, causing the two moving seats 10 to move closer together. The locking rod 11 moves synchronously and engages with the locking slot 7, allowing the two moving rods 6 to insert into the sides of the core 3. Then, the first motor 4 activates, driving the bushing 5 to rotate. The inner walls of the core 3 and bushing 5 have symmetrically distributed protrusions, and the outer walls of the moving rods 6 have symmetrically distributed grooves. The protrusions slide within the grooves, and through the limiting sliding of the protrusions and grooves, the axial positioning of the core 3, bushing 5, and moving rods 6 is achieved. This allows the first motor 4 to sequentially drive the bushing 5... The rotating motion of the moving rod 6, the core 3, and the film body 2 allows the cutting mechanism 12 to automatically move to the position where trimming is required, thereby positioning and cutting the rotating film body 2. After trimming, the drive mechanism sequentially moves the two moving seats 10, the locking rod 11, and the moving rod 6 away, causing the moving rod 6 to disengage from the core 3. This allows for the quick removal of the film body 2 and the core 3. The entire trimming process, including adjustment and positioning, is automated, making the installation and disassembly of the film body 2 and the core 3 convenient and quick. This reduces the labor intensity of workers and improves trimming efficiency. Furthermore, this device is suitable for setting up and cutting film bodies 2 of different lengths, thus enhancing its practicality.

[0027] In addition, the top of the operating platform 1 is provided with two sets of slide rails, and the two movable seats 10 are respectively limited to slide on the two sets of slide rails. The movement limit of the movable seat 10 in the slide rail is matched with the depth of the bushing 5. By setting the slide rails, the stability of the two movable seats 10 moving in a straight line can be increased. The length of the slide rails is set so that the movable seat 10 will not disengage from the bushing 5 when it drives the movable rod 6 to move.

[0028] Example 2: Based on Example 1, a collection trough 13 is provided inside the top of the operating platform 1, corresponding to the two moving rods 6 below. A collection box 14 is placed at one end of the operating platform 1, and the collection trough 13 extends to the top of the collection box 14. After the trimming is completed, the waste material cut from both sides of the film body 2 will automatically fall into the collection trough 13 and eventually slide into the inside of the collection box 14, thus realizing the automatic collection of waste material.

[0029] An L-shaped positioning frame 15 is fixedly connected to the bottom of one end of the operating platform 1, and the positioning frame 15 surrounds the bottom outer side of the collection box 14. The end of the positioning frame 15 is rotatably connected to a limiting rod 16 through a fixing pin. The limiting rod 16 blocks one side of the collection box 14. Through the cooperation of the positioning frame 15 and the limiting rod 16, the position of the collection box 14 can be fixed to prevent it from shifting and causing waste to be missed. When the collection box 14 is full of waste, the limiting rod 16 can be rotated upward to release the blockage of the collection box 14, and the collection box 14 can be pulled out for waste processing.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A trimming machine for BOPP film production, comprising an operating machine table (1) for trimming operation of a film body (2) wound on the outside of a core (3); characterized in that The film body (2) and the core (3) are positioned and installed by a erecting assembly, the erecting assembly comprises a first motor (4) installed on one side of the top of the operating machine table (1), and the output end of the first motor (4) and the other side of the operating machine table (1) are provided with shaft sleeves (5), the inside of the shaft sleeves (5) slides with moving rods (6), and the inside of the two moving rods (6) is inserted into the two sides of the core (3), the outer wall of the moving rod (6) is provided with a clamping groove (7), the top of the operating machine table (1) is provided with two moving seats (10), and the two moving seats (10) are moved by a driving mechanism, the top of the moving seat (10) is connected with a clamping rod (11), and one end of the two clamping rods (11) is correspondingly clamped in the inside of the clamping groove (7), and the top of the operating machine table (1) is also provided with a cutting mechanism (12) slidingly.

2. A trimming machine for BOPP film production as claimed in claim 1, wherein: The cutting mechanism (12) is composed of a positioning moving part at the bottom and a cutting part at the top, which can intelligently position and move according to the input data.

3. The trimming machine for BOPP film production according to claim 1, characterized in that: The inside of the shaft sleeve (5) and the core (3) is provided with a protrusion which is symmetrically distributed, the outer wall of the moving rod (6) is provided with a groove which is symmetrically distributed, and the protrusion is correspondingly slid in the inside of the groove.

4. The trimming machine for BOPP film production according to claim 1, characterized in that: The driving mechanism is composed of a second motor (8) fixedly installed on the top of the operating machine table (1) and a bidirectional screw rod (9) fixed on the output end of the second motor (8), and the two moving seats (10) are symmetrically screwed on the outside of the bidirectional screw rod (9).

5. A BOPP film production trimming machine according to claim 4, characterized in that: The top of the operating machine table (1) is provided with two groups of sliding rails, and the two moving seats (10) are respectively limited to slide on the two groups of sliding rails, and the moving limit of the moving seat (10) in the sliding rail matches the depth of the shaft sleeve (5).

6. A trimming machine for BOPP film production as claimed in claim 5, wherein: The inside of the top of the operating machine table (1) is correspondingly provided with a collecting groove (13) below the two moving rods (6), one end of the operating machine table (1) is provided with a collecting box (14), and the collecting groove (13) penetrates to the upper side of the collecting box (14).

7. The trimming machine for BOPP film production according to claim 6, characterized in that: One end of the operating machine table (1) is fixedly connected with a positioning frame (15) in L-shaped structure, and the positioning frame (15) surrounds the bottom outside of the collecting box (14), the end of the positioning frame (15) is rotatably connected with a limiting rotating rod (16) through a fixed pin, and the limiting rotating rod (16) blocks one side of the collecting box (14).

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