A protective film cutting device

Abstract

This utility model discloses a protective film cutting device, relating to the technical field of cutting devices. Its structure includes a round shaft, several cutting blade assemblies mounted on the round shaft, a fixed support column, a bearing with a seat, and a swing assembly. A rectangular groove is formed on the outer wall of the round shaft along the axial direction. A bearing with a seat is installed at each end of the round shaft. The bearings with seats are mounted on the fixed support column. The swing assembly includes a handle, a guide slot plate, a telescopic component, and a connecting plate. This utility model, through the design of the swing assembly, enables adjustment of the cutting blade area of ​​the cutting blade assembly without stopping the machine during protective film cutting, avoiding production interruptions caused by machine stoppages for adjustment and significantly improving production efficiency. By using the swing assembly to synchronously adjust the cutting blade area of ​​all cutting blade assemblies, compared to the traditional manual adjustment method, it not only greatly reduces adjustment time but also ensures the consistency and accuracy of all blade adjustments, improving product quality and stability.

Description

Technical Field

[0001] This utility model belongs to the field of cutting device technology, and in particular relates to a protective film cutting device. Background Technology

[0002] In the production and processing of protective film, the cutting process is a crucial step. Traditional protective film cutting equipment typically uses fixed cutting blade assemblies. After prolonged use, the blade area of ​​these assemblies requires periodic replacement or adjustment due to wear. However, the conventional method of adjusting cutting blade assemblies has significant shortcomings: when it is necessary to adjust the cutting blade assembly to change the blade area involved in cutting the protective film, the machine must be stopped and the tilt angle of each cutting blade assembly, i.e., the tilt angle of the blade relative to the ground, must be adjusted manually.

[0003] This adjustment method is not only time-consuming and labor-intensive, affecting the continuous and stable operation and production efficiency of the production line, but also, due to the limited precision of manual adjustment, often leads to differences in the adjustment results of each cutting blade assembly, thus affecting the cutting quality of the protective film and the consistency of the products. Furthermore, with the continuous expansion of the protective film market and the increasing demands of consumers for product quality, traditional cutting equipment can no longer meet the high-efficiency and precision requirements of modern production.

[0004] Therefore, developing a device that can quickly and accurately adjust the blade area of ​​the cutting blade assembly without stopping the machine during the protective film cutting process has become a pressing technical problem for the current protective film manufacturing industry. The information disclosed in this background section is intended only to enhance the understanding of the overall background technology of this utility model and should not be construed as an admission or in any way implying that such information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a protective film cutting device that significantly improves production efficiency and cutting accuracy through mechanized adjustment, reduces production costs, and meets the high-efficiency and precision requirements of modern protective film production.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model relates to a protective film cutting device, comprising a circular shaft, a plurality of cutting blade assemblies mounted on the circular shaft, a fixed support column, a bearing with a seat, and a swing assembly; the outer wall of the circular shaft has a rectangular groove arranged along the axial direction; a bearing with a seat is mounted at each end of the circular shaft; the bearing with a seat is mounted on the fixed support column; the swing assembly includes a handle, a guide slot plate, a telescopic component, and a connecting plate; the connecting plate is mounted on the telescopic end of the telescopic component; the connecting plate is mounted on the guide slot plate by bolts, and the telescopic component drives the guide slot plate to move vertically up and down; one end of the handle is mounted on one end of the circular shaft; the other end of the handle swings along the S-shaped channel of the guide slot plate.

[0008] As a preferred technical solution of this utility model, a channel steel is fixed to the side wall of the fixed support column at one end of the swing assembly; a telescopic component mounting seat for installing the telescopic component is fixed to one side of the channel steel; a vertically arranged linear guide rail is fixed to the other adjacent side of the channel steel; and a linear slider that cooperates with the linear guide rail is fixed to the inner side of the guide slot plate.

[0009] As a preferred embodiment of this utility model, the telescopic component is an electric telescopic rod or a cylinder.

[0010] As a preferred embodiment of this utility model, the crank handle includes a cylinder installed at the end of the circular shaft; a first rectangular locking block that is interference-fitted with the rectangular channel is fixed on the inner wall of the cylinder; a swing arm is fixed on the outer end of the cylinder; a cylindrical head is vertically fixed on the outer side of the far end of the swing arm; and a brass sleeve that slides with the inner wall of the S-shaped channel is installed on the cylindrical head.

[0011] As a preferred embodiment of this utility model, the cutting blade assembly includes a clamping body and a blade; the clamping body is generally a right-angled trapezoidal structure; the inclined surface of the clamping body is positioned at the bottom, and the inclined surface of the clamping body has an installation groove for installing the blade; a row of threaded through holes communicating with the installation groove are opened on the side of the clamping body; countersunk bolts for pressing the blade are threadedly connected to the threaded through holes; a circular hole that slides with the circular shaft is opened at the center of the clamping body; a rectangular guide strip that clearance-fits with the rectangular channel is fixed to the inner wall of the circular hole; an open slot communicating with the circular hole is opened on one side of the clamping body; a circular through hole is opened on one side wall of the open slot; a threaded blind hole coaxially arranged with the circular through hole is opened on the other side wall of the open slot; a single-headed bolt is installed on the circular through hole and the threaded blind hole.

[0012] This utility model has the following beneficial effects:

[0013] 1. The protective film cutting device of this utility model, through the design of the swing component, enables the adjustment of the blade area of ​​the cutting blade assembly without stopping the machine during the protective film cutting process, avoiding production interruption caused by machine stoppage for adjustment, and significantly improving production efficiency.

[0014] 2. This utility model adopts a swing assembly to synchronously adjust the blade area of ​​all cutting blade assemblies. Compared with the traditional manual adjustment method, it not only greatly reduces the adjustment time, but also ensures the consistency and accuracy of all blade adjustments, thereby improving product quality and stability.

[0015] 3. The device of this utility model has a simple overall structure, with each component closely fitted, making it easy to maintain and repair, and reducing long-term use costs.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of 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.

[0018] Figure 1 This is a schematic diagram of the protective film cutting device of this utility model.

[0019] Figure 2 for Figure 1 A magnified view of a portion of point A in the middle.

[0020] Figure 3 for Figure 1 The front view.

[0021] Figure 4 This is a schematic diagram of the crank handle.

[0022] Figure 5 This is a schematic diagram of the cutting blade assembly.

[0023] Figure 6 This is a schematic diagram of the structure of the clamping body.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1-Round shaft, 101-Rectangular channel, 2-Cutter assembly, 3-Fixed support column, 4-Bearing with seat, 5-Handle, 51-Cylinder, 52-First rectangular clamping block, 53-Swing arm, 54-Cylindrical head, 55-Brass sleeve, 6-Guide slot plate, 61-S-shaped channel, 7-Telescopic component, 8-Connecting plate, 9-Channel steel, 91-Telescopic component mounting base, 10-Linear guide rail, 11-Linear slider, 21-Clamping body, 22-Blade, 23-Mounting slot, 24-Threaded through hole, 25-Round hole, 26-Rectangular guide strip, 27-Open slot, 28-Round through hole, 29-Threaded blind hole. Detailed Implementation

[0026] 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 scope of protection of the present utility model.

[0027] Specific Implementation Example 1: Please refer to... Figure 1-6 As shown, this utility model is a protective film cutting device, which aims to solve the problem that conventional cutting devices require stopping the machine and manually adjusting each blade area involved in cutting the protective film when adjusting the cutting blade assembly, thereby improving adjustment efficiency and avoiding production interruption.

[0028] The protective film cutting device includes a circular shaft 1, several cutting blade assemblies 2 mounted on the circular shaft 1, a fixed support column 3, a bearing 4 with a mounting seat, and a rocking assembly. A rectangular channel 101 arranged axially is formed on the outer wall of the circular shaft 1. A bearing 4 with a mounting seat is mounted at each end of the circular shaft 1. The bearings 4 with mounting seats are mounted on the fixed support column 3, providing stable support for the circular shaft 1.

[0029] The rocking assembly includes a handle 5, a guide slot plate 6, a telescopic component 7, and a connecting plate 8. The connecting plate 8 is installed on the telescopic end of the telescopic component 7 and is bolted to the guide slot plate 6. The telescopic component 7 drives the guide slot plate 6 to move vertically up and down. One end of the handle 5 is installed on one end of the round shaft 1. The other end of the handle 5 swings along the S-shaped channel 61 of the guide slot plate 6, thereby realizing the rocking motion of the round shaft 1. The telescopic component 7 can be an electric telescopic rod or a cylinder. A cylinder is preferred for the telescopic component 7 to reduce costs; an electric telescopic rod is used in situations where air access is inconvenient.

[0030] The cutting blade assembly 2 includes a clamping body 21 and a blade 22. The clamping body 21 is generally a right-angled trapezoidal structure. The inclined surface of the clamping body 21 is located at the bottom, and the inclined surface of the clamping body 21 has a mounting groove 23 for mounting the blade 22. A row of threaded through holes 24 communicating with the mounting groove 23 are opened on the side of the clamping body 21. Countersunk bolts for clamping the blade 22 are threadedly connected to the threaded through holes 24. A circular hole 25 is opened at the center of the clamping body 21, which slides with the circular shaft 1. A rectangular guide strip 26 that is clearance-fitted with the rectangular channel 101 is fixed to the inner wall of the circular hole 25. An open slot 27 communicating with the circular hole 25 is opened on one side of the clamping body 21. A circular through hole 28 is opened on one side wall of the open slot 27. A threaded blind hole 29 coaxially arranged with the circular through hole 28 is opened on the other side wall of the open slot 27. Single-headed bolts are installed on the through hole 28 and the threaded blind hole 29 to adjust the clamping force of the clamping body 21 on the round shaft 1. The blades 22 of several cutting blade assemblies 2 are installed in the same direction on the round shaft 1, and the cutting edge area used by the blades 22 is the same when cutting the protective film. The cutting edge area used for cutting the protective film can be switched and adjusted by driving the round shaft 1 and the several cutting blade assemblies 2 installed on it through the swing assembly.

[0031] In practical applications, when it is necessary to adjust the blade area of ​​the cutting blade assembly 2, simply activate the telescopic component 7 to move the guide slot plate 6 up and down. The up and down movement of the guide slot plate 6 causes the cylindrical head 54 of the crank handle 5 to swing within the S-shaped channel 61, thereby causing the round shaft 1 and the cutting blade assembly 2 on it to swing, achieving rapid switching of the blade area. This process does not require stopping the machine and can adjust the blade areas of all cutting blade assemblies 2 simultaneously, greatly improving production efficiency and adjustment accuracy.

[0032] Specifically, a channel steel 9 is fixed to the side wall of the fixed support column 3 at one end of the swing assembly. A telescopic mounting seat 91 for installing the telescopic component 7 is fixed to one side of the channel steel 9. A vertically arranged linear guide rail 10 is fixed to the other adjacent side of the channel steel 9. A linear slider 11 that mates with the linear guide rail 10 is fixed to the inner side of the guide slot plate 6 to ensure that the guide slot plate 6 can move up and down smoothly under the action of the telescopic component 7.

[0033] The crank handle 5 includes a cylinder 51 mounted on the end of the round shaft 1. A first rectangular retaining block 52, which is interference-fitted with the rectangular channel 101, is fixed to the inner wall of the cylinder 51 to ensure synchronous rotation of the crank handle 5 and the round shaft 1. A rocker arm 53 is fixed to the outer end of the cylinder 51. A cylindrical head 54 is vertically fixed to the outer surface of the distal end of the rocker arm 53. A brass sleeve 55, which slides against the inner wall of the S-shaped channel 61, is mounted on the cylindrical head 54 to reduce friction and wear during the swinging process.

[0034] One specific application of this embodiment is as follows: During continuous production, the telescopic component 7 is activated, and the swaying component drives the round shaft 1 and the cutting blade component 2 on it to sway continuously, quickly switching the cutting edge area involved in cutting, avoiding the temperature rise damage caused by continuous cutting in a single area, ensuring uniform blade wear, and ensuring the continuous and stable operation of the production line.

[0035] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0036] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A protective film cutting device, comprising a circular shaft (1) and a plurality of cutting blade assemblies (2) mounted on the circular shaft (1), characterized in that: It also includes a fixed support column (3), a seated bearing (4), and a rocking assembly; The outer wall of the circular shaft (1) is provided with a rectangular channel (101) arranged along the axial direction; A bearing with a seat (4) is installed at each end of the circular shaft (1); the bearing with a seat (4) is installed on the fixed support column (3); The rocking assembly includes a rocker arm (5), a guide slot plate (6), a telescopic component (7), and a connecting plate (8); the connecting plate (8) is installed on the telescopic end of the telescopic component (7); the connecting plate (8) is installed on the guide slot plate (6) by bolts, and the telescopic component (7) drives the guide slot plate (6) to move vertically up and down; one end of the rocker arm (5) is installed on one end of the round shaft (1); the other end of the rocker arm (5) swings along the S-shaped channel (61) of the guide slot plate (6).

2. The protective film cutting device according to claim 1, characterized in that, A channel steel (9) is fixed to the side wall of the fixed support column (3) at one end of the swing assembly; a telescopic mounting seat (91) for installing the telescopic component (7) is fixed to one side of the channel steel (9); a vertically arranged linear guide rail (10) is fixed to the other side of the channel steel (9); a linear slider (11) that cooperates with the linear guide rail (10) is fixed to the inner side of the guide slot plate (6).

3. The protective film cutting device according to claim 1, characterized in that, The telescopic component (7) is an electric telescopic rod or a cylinder.

4. The protective film cutting device according to claim 1, characterized in that, The crank handle (5) includes a cylinder (51) installed at the end of the round shaft (1); a first rectangular locking block (52) is fixed on the inner wall of the cylinder (51) and is interference-fitted with the rectangular channel (101); a swing arm rod (53) is fixed on the outer end of the cylinder (51); a cylindrical head (54) is vertically fixed on the outer side of the far end of the swing arm rod (53); a brass sleeve (55) is installed on the cylindrical head (54) and is slidably fitted with the inner wall of the S-shaped channel (61).

5. The protective film cutting device according to claim 1, characterized in that, The cutting blade assembly (2) includes a clamping body (21) and a blade (22); the clamping body (21) is generally a right-angled trapezoidal structure; the inclined surface of the clamping body (21) is located at the bottom, and the inclined surface of the clamping body (21) is provided with a mounting groove (23) for mounting the blade (22); a row of threaded through holes (24) communicating with the mounting groove (23) is provided on the side of the clamping body (21); countersunk bolts for pressing the blade (22) are threadedly connected to the threaded through holes (24); the center of the clamping body (21) A circular hole (25) is provided that slides with the circular shaft (1); a rectangular guide strip (26) is fixed on the inner wall of the circular hole (25) and has clearance fit with the rectangular channel (101); an opening groove (27) communicating with the circular hole (25) is provided on one side of the clamping body (21); a circular through hole (28) is provided on one side wall of the opening groove (27); a threaded blind hole (29) coaxially arranged with the circular through hole (28) is provided on the other side wall of the opening groove (27); a single-headed bolt is installed on the circular through hole (28) and the threaded blind hole (29).

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