CN113310418B

CN113310418B - Wall thickness detection device of CPP blown film

Info

Publication number: CN113310418B
Application number: CN202110608163.8A
Authority: CN
Inventors: 焦国平
Original assignee: Anhui Songtai Packaging Materials Co ltd
Current assignee: Anhui Songtai Packaging Materials Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2022-11-04
Anticipated expiration: 2041-06-01
Also published as: CN113310418A

Abstract

The invention provides a wall thickness detection device for a CPP blown film. The detection device comprises a base, the top of base is fixed with the fixed plate through the support, and the both sides of fixed plate are fixed with the gag lever post through the connecting block, and slide on the gag lever post and have the slider, be fixed with the backup pad through the fixed block on the slider, and be provided with the pick-up plate in the backup pad, be provided with a plurality of infrared detector on the pick-up plate. The wall thickness detection device for the CPP blown film solves the problems that in the film production process, when a film is pulled by a winding machine, the film is wrinkled or the end face is irregular when the film is wound due to the reasons of uneven pulling speed, tension or film thickness and the like, the surface stress of the film is uneven, the thickness is uneven, and the detection and the discovery are difficult, and improves the quality of the CPP film.

Description

Wall thickness detection device of CPP blown film

Technical Field

The invention relates to the field of CPP film detection, in particular to a wall thickness detection device for a CPP blown film.

Background

The CPP film, namely a casting polypropylene film, is also called as an unstretched polypropylene film and can be divided into a general CPP film, an aluminized CPP film, a cooking CPP film and the like according to different purposes, wherein the CPP film is prepared by taking polypropylene as a main raw material and extruding and casting the polypropylene through a die head. In the production process of the thin film, when the film is pulled by the winding machine, the thin film is wrinkled or the end face is irregular when the film is wound due to the reasons of pulling speed, tension or uneven thickness of the thin film and the like, so that the thin film is uneven in thickness due to uneven stress on the surface of the thin film, and the detection and the discovery are difficult, and the quality of the CPP thin film is influenced.

Therefore, it is necessary to provide a wall thickness detection device for a CPP blown film to solve the above technical problems.

Disclosure of Invention

The invention provides a wall thickness detection device for a CPP blown film, which solves the problems.

In order to solve the technical problem, the wall thickness detection device for the CPP blown film comprises a base, wherein a fixed plate is fixed at the top of the base through a bracket, limiting rods are fixed on two sides of the fixed plate through connecting blocks, and sliding blocks slide on the limiting rods;

a supporting plate is fixed on the sliding block through a fixing block, a detection plate is arranged on the supporting plate, and a plurality of infrared detectors are arranged on the detection plate;

the infrared detector is characterized in that arc-shaped expansion pieces are arranged on the detection plate and positioned on two sides of the infrared detector in a rotating mode, a spring piece is arranged between each expansion piece and the detection plate, a contact block corresponding to each expansion piece is arranged on the infrared detector in a rotating mode, a shaft block is fixed on each contact block, and an air cylinder is arranged on the detection plate and corresponds to each shaft block.

Preferably, the bottom of the fixing plate is provided with a shaft rod.

Preferably, the fixed plate is fixed with the motor through the stabilizing block, and the output of motor is fixed with the dwang, and dwang and slider sliding connection.

Preferably, an alarm lamp corresponding to the infrared detector is arranged on the supporting plate.

Preferably, a hydraulic rod is fixed on the fixing block, and a pressure roller is fixed at the output end of the hydraulic rod.

Preferably, the bottom of the fixing plate is provided with a groove matched with the pressure roller.

Preferably, the detection plate is provided with an air pipe, and the air pipe is communicated with the air cylinder through a hose.

Preferably, a state warning lamp is arranged at the top of the fixing plate.

Compared with the prior art, the wall thickness detection device for the CPP blown film provided by the invention has the following beneficial effects:

the invention provides a wall thickness detection device of a CPP blown film, which is characterized in that an alarm lamp corresponding to an infrared detector for detecting the film thickness abnormity is turned on, and a left cylinder and a right cylinder of the infrared detector for detecting the film thickness abnormity are started to drive a shaft block and a contact block to rotate and eject an expansion sheet, so that the film at the position with the abnormal thickness is expanded, wrinkles are eliminated, and secondary detection is carried out.

Drawings

FIG. 1 is a schematic structural diagram of a wall thickness detecting apparatus for a CPP blown film according to a preferred embodiment of the present invention;

FIG. 2 is a view showing the connection between the detection board and the infrared detector shown in FIG. 1;

FIG. 3 is a coupling view of a hydraulic rod and a pressure roller shown in FIG. 1;

fig. 4 is a connection diagram at a in fig. 2.

Reference numbers in the figures: 1. the base, 2, the support, 3, the fixed plate, 4, the connecting block, 5, the gag lever post, 6, the slider, 7, the fixed block, 8, the backup pad, 9, the pick-up plate, 10, infrared detector, 11, the expansion piece, 12, the spring leaf, 13, the axle piece, 14, the cylinder, 15, the axle rod, 16, stabilizing block, 17, the motor, 18, the dwang, 19, the alarm lamp, 20, the hydraulic stem, 21, the pressure roller, 22, the trachea, 23, the hose, 24, the status warning light, 25, the contact piece.

Detailed Description

The invention is further described below with reference to the drawings and the embodiments.

Referring to fig. 1-4, a wall thickness detection device for a CPP blown film includes a base 1, a fixing plate 3 is fixed on the top of the base 1 through a bracket 2, a limiting rod 5 is fixed on two sides of the fixing plate 3 through a connecting block 4, and a sliding block 6 slides on the limiting rod 5;

a supporting plate 8 is fixed on a sliding block 6 through a fixing block 7, a detection plate 9 is arranged on the supporting plate 8, and a plurality of infrared detectors 10 are arranged on the detection plate 9;

as shown in fig. 4, arc-shaped expansion pieces 11 are rotatably arranged on the detection plate 9 and positioned at two sides of the infrared detector 10, a spring leaf 12 is arranged between the expansion pieces 11 and the detection plate 9, a contact block 25 corresponding to the expansion pieces 11 is rotatably arranged on the infrared detector 10 for providing rebound tension, a shaft block 13 is fixed on the contact block 25, and an air cylinder 14 is arranged on the detection plate 9 and corresponding to the shaft block 13;

as shown in fig. 1, the bottom of the fixing plate 3 of the present invention is provided with a shaft rod 15, the fixing plate 3 is fixed with a motor 17 through a stabilizing block 16, and the output end of the motor 17 is fixed with a rotating rod 18, and the rotating rod 18 is connected with the sliding block 6 in a sliding manner;

an alarm lamp 19 corresponding to an infrared detector 10 is arranged on a supporting plate 8, a hydraulic rod 20 is fixed on a fixing block 7, a pressure roller 21 is fixed at the output end of the hydraulic rod 20, a groove matched with the pressure roller 21 is formed in the bottom of a fixing plate 3, an air pipe 22 is arranged on a detection plate 9, the air pipe 22 is communicated with an air cylinder 14 through a hose 23, and a state alarm lamp 24 is arranged at the top of the fixing plate 3 to prompt working states.

The working principle of the wall thickness detection device of the CPP blown film provided by the invention is as follows: the film is driven on the mandrel 15 on the fixing plate 3, simultaneously, the thickness of the film is detected through a plurality of infrared detectors 10, when the film thickness is detected to be abnormal, the hydraulic rod 20 drives the pressure roller 21 to press the film onto the detection plate 9, and simultaneously, the rotating rod 18 is driven through the motor 17, so that the sliding block 6 drives the supporting plate 8 to descend, and simultaneously, the alarm lamp 19 corresponding to the infrared detector 10 which detects the film thickness abnormality lights up, the cylinders 14 which detect the infrared detector 10 which detects the film thickness abnormality and control the film thickness abnormality simultaneously start, the shaft block 13 and the contact block 25 are driven to rotate, the expansion sheet 11 is ejected out, so that the film at the abnormal part of the thickness expands, wrinkles are eliminated, and the secondary detection is carried out.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.

Claims

1. The wall thickness detection device for the CPP blown film is characterized by comprising a base (1), wherein a fixed plate (3) is horizontally fixed above the base (1) through supports (2) on two sides of the base (1), two sides of the fixed plate (3) are respectively and vertically fixed with a limiting rod (5) through connecting blocks (4), and a sliding block (6) slides on the limiting rod (5);

a supporting plate (8) is horizontally fixed between the two sliding blocks (6) on the sliding blocks (6) through a fixing block (7), the supporting plate (8) is arranged between the base (1) and the fixing plate (3), a detection plate is arranged on the supporting plate (8), and a plurality of infrared detectors (10) are arranged on the detection plate;

arc-shaped expansion pieces (11) are rotatably arranged on the detection plate and located on two sides of each infrared detector (10), a spring piece (12) is arranged between each expansion piece (11) and the detection plate, contact blocks (25) corresponding to the expansion pieces (11) are rotatably arranged on the infrared detectors (10), shaft blocks (13) are fixed on the contact blocks (25), air cylinders (14) are correspondingly arranged on the detection plate and the shaft blocks (13), shaft rods (15) are arranged at the bottoms of the fixed plates (3), motors (17) are respectively fixed on two sides of the fixed plates (3) through stabilizing blocks (16), rotating rods (18) are fixed at output ends of the motors (17), the rotating rods (18) are slidably connected with the sliding blocks (6), hydraulic rods (20) are upwards fixed on the fixed blocks (7), and pressure rollers (21) are fixed at output ends of the hydraulic rods (20); the film is at transmission on axle rod (15) on fixed plate (3), carry out thickness detection to the film of process through a plurality of infrared detector (10) simultaneously, when detecting film thickness anomaly, hydraulic stem (20) drive pressure roller (21) press the film to the pick-up plate on, drive dwang (18) through motor (17) simultaneously, make slider (6) drive backup pad (8) descend, cylinder (14) of detecting infrared detector (10) both sides that film thickness anomaly simultaneously start, drive axle piece (13) and contact block (25) and rotate, it is ejecting to expand piece (11), make the film of thickness anomaly department expand, eliminate the fold, detect once more.

2. The device for detecting the wall thickness of the CPP blown film according to the claim 1, characterized in that an alarm lamp (19) corresponding to the infrared detector (10) is arranged on the supporting plate (8).

3. The device for detecting the wall thickness of a CPP blown film according to claim 1, wherein the bottom of the fixing plate (3) is provided with a groove matched with the pressure roller (21).

4. The device for detecting the wall thickness of the CPP blown film according to claim 1, wherein an air pipe (22) is arranged on the detection plate, and the air pipe (22) is communicated with the air cylinder (14) through a hose (23).

5. The device for detecting the wall thickness of the CPP blown film according to claim 1, wherein a status warning light (24) is arranged on the top of the fixing plate (3).