Film breakage alarm device for aluminized film washing machine

Abstract

The utility model discloses a film breakage alarm device for an aluminized film washing machine, which comprises a mounting frame arranged on the aluminized film washing machine, a column body is connected to the mounting frame through a connecting piece, and the column body is used for being in sliding contact with the top surface of an aluminized film main body in the aluminized film washing machine. A detection sensor is arranged on the mounting frame and located on one side of the aluminized film main body, the detection sensor is connected with an alarm mechanism, and the detection sensor is used for enabling the alarm mechanism to give an alarm when detecting that the column body moves to a preset position. According to the utility model, the column body is in contact with the aluminized film main body, when the film is broken, the column body loses tension bearing and moves downwards to drive the residual film to be separated from a plane interface, and the detection sensor detects that the column body moves to a preset position, so that the alarm mechanism gives an alarm, and the broken film can be effectively and timely fed back and warned; the hysteresis problem of manual monitoring is effectively solved, and the production efficiency and the equipment safety are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of film processing equipment, specifically to a broken film alarm device for aluminized film washing machine. BACKGROUND

[0002] At present, the aluminized film washing machine is usually composed of film winding and unwinding equipment, washing tank arranged between the film winding and unwinding equipment and the like. During the washing operation, the finished aluminized film body is drawn out from the film unwinding equipment, enters the washing tank through the inlet, and completes the solvent cleaning process under the traction of the multiple guide rollers in the tank. Finally, the film is rewound by the film winding equipment. Because the film needs to maintain a certain tension during the washing process, it helps to remove the aluminized layer. However, in the production process of aluminized film, the defect caused by improper control may easily lead to the broken film during the washing process. At present, it is usually relied on manual attendance and monitored by the operator visually. However, in the case of high-intensity continuous operation or temporary absence of personnel, it is difficult to find the broken film in time, which leads to the interruption of production, waste of film material and even damage to the equipment. Therefore, we propose a broken film alarm device for aluminized film washing machine. SUMMARY

[0003] The utility model aims at providing a broken film alarm device for aluminized film washing machine to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A broken film alarm device for aluminized film washing machine, comprising a mounting frame arranged on the aluminized film washing machine, a column connected to the mounting frame through a connecting piece, the column being used for sliding contact with the top surface of the aluminized film body in the aluminized film washing machine, the column being displaced when the aluminized film body is broken, a detection sensor arranged on the mounting frame and located at one side of the aluminized film body, the detection sensor being connected to an alarm mechanism, the detection sensor being used for alarming the alarm mechanism when the column is displaced to the preset position.

[0006] Further improvement lies in that the column is a hollow cylindrical metal structure, and the detection sensor is an explosion-proof inductive proximity sensor.

[0007] Further improvement lies in that the connecting piece comprises a wire connecting piece one passing through the center of the column, and the two ends of the wire connecting piece one are connected to the mounting frame through a wire connecting piece two.

[0008] Further improvement lies in that the connecting piece comprises a connecting frame sleeved on the shaft part of the column, a elastic connecting rod is arranged on the top of the connecting frame, a connecting plate is sleeved on the outer wall of the fixed section of the elastic connecting rod, a guide rod is arranged on the connecting plate and penetrates the mounting frame vertically, one end of the elastic connecting rod is rotationally connected with the adjusting screw, and the other end of the adjusting screw is threadedly penetrated into the mounting frame and connected with the hand wheel.

[0009] Further improvement lies in that the alarm mechanism comprises a controller electrically connected with the detection sensor and a warning lamp electrically connected with the controller.

[0010] Further improvement lies in that the controller is also connected with the film winding equipment and the film unwinding equipment in the aluminized film washing machine, so that the controller controls the film winding equipment and the film unwinding equipment to stop working when the detection sensor detects that the column is displaced to the preset position.

[0011] Further improvement lies in that two groups of protection shells are symmetrically and slidably sleeved on the mounting frame, opposite sides and bottoms of the two groups of protection shells are hollow, the two groups of protection shells are in contact and are used for covering the outside of the column, the connecting piece and the detection sensor, and the protection shell is a magnetic shielding protection shell.

[0012] Further improvement lies in that a fixing block is hingedly connected on the protection shell, a clamping block is arranged on the fixing block, and a plurality of clamping grooves are formed in the mounting frame and are used for inserting the clamping block after the fixing block is turned over.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The column is in contact with the aluminized film body, the column loses the tension support and is displaced downward to drive the remaining film to separate from the plane interface when the film is broken, the alarm mechanism alarms when the detection sensor detects that the column is displaced to the preset position, timely feedback and warning can be made on the broken film, the hysteresis problem of manual monitoring is effectively solved, and the production efficiency and the equipment safety are remarkably improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the broken film alarm device of the utility model;

[0016] Figure 2 It is a schematic view of the broken film alarm device of the utility model installed on the aluminized film washing machine;

[0017] Figure 3 It is a structure schematic view of the connecting piece of the utility model;

[0018] Figure 4 It is a structure schematic view of the connecting piece of the utility model Figure 3 Structure sectional view.

[0019] In the figure: 1, mounting frame; 2, column; 3, connecting piece; 31, connecting frame; 32, elastic connecting rod; 33, connecting plate; 34, guide rod; 35, adjusting screw; 4, detection sensor; 5, controller; 6, warning light; 7, protective shell; 8, clamping groove; 9, fixed block; 10, aluminum-plated film main body. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] Please refer to the drawings in the embodiments of the utility model Figures 1-2 A film breakage alarm device for an aluminum-plated film washing machine, comprising a mounting frame 1 arranged on the aluminum-plated film washing machine, as shown in Figure 2 In actual situations, the mounting frame 1 is connected to the rack of the aluminum-plated film washing machine in the form of a bolt structure, and the mounting frame 1 is in the form of a U-shape.

[0023] A column 2 is connected to the mounting frame 1 through a connecting piece 3, the column 2 is used to slide with the top surface of the aluminum-plated film main body 10 in the aluminum-plated film washing machine, and the column 2 rolls along with the movement of the aluminum-plated film main body 10. When film breakage occurs, the column 2 immediately loses tension support under the action of its own gravity and drives the remaining film to separate from the planar interface. A detection sensor 4 for detecting the position of the column 2 is arranged on the mounting frame 1 and located on one side of the main body. The detection sensor 4 is flush with the column 2 and has a spacing of about 8-15 cm. The probe end of the detection sensor 4 is parallel to the film surface of the aluminum-plated film main body 10 with a spacing of about 1-5 cm. The column 2, the mounting frame 1 and the detection sensor 4 can be arranged at the position where the aluminum-plated film washing machine unwinds the film. The detection sensor 4 is connected to an alarm mechanism.

[0024] When the aluminum-plated film main body 10 breaks, the column 2 will displace due to the loss of tension, and the detection sensor 4 will alarm the alarm mechanism when it detects that the column 2 has displaced to a preset position. The detection sensor 4 includes but is not limited to a position sensor, a laser sensor or any sensor that can detect the displacement of the column 2.

[0025] Furthermore, the column 2 is a hollow cylindrical metal structure. Preferably, the column 2 weighs approximately 250g-350g. The detection sensor 4 is an explosion-proof inductive proximity sensor. Explosion-proof inductive proximity sensors are conventional devices in this field. The explosion-proof inductive proximity sensor generates a high-frequency alternating magnetic field through an internal oscillation circuit. When a metal object enters the magnetic field, eddy currents are generated inside, forming a reverse magnetic field, thereby changing the frequency of the oscillation circuit. As the metal object moves away, the frequency decreases. The sensor amplifies the frequency change signal to a detectable voltage level and triggers the actuator to operate (such as an alarm).

[0026] Example 2

[0027] Based on Example 1, the connector 3 in this example includes a wire connector 1 that passes through the center of the column 2. The two ends of the wire connector 1 are connected to the mounting frame 1 through a wire connector 2. The wire connector 2 can be riveted to the mounting frame 1. Both the wire connector 1 and the wire connector 2 are made of iron wire. When the membrane breaks, the column 2 falls due to the loss of membrane tension support. At this time, the wire connector 1 and the connector 2 are displaced due to gravity, causing the column to leave its original working position, thereby triggering the detection sensor 4.

[0028] Example 3

[0029] Please see the appendix Figures 1-4 Based on embodiment 1, the connector 3 in this embodiment includes a connecting frame 31 sleeved on the shaft of the column 2. The connecting frame 31 is U-shaped. The top of the connecting frame 31 is provided with an elastic connecting rod 32. The elastic connecting rod 32 includes a movable rod connecting the connecting frame 31, a sleeve rod sleeved on the outer wall of the movable rod, and a spring connecting the sleeve rod and the movable rod. The outer wall of the fixed section (sleeve rod) of the elastic connecting rod 32 is sleeved with a connecting plate 33. The connecting plate 33 is provided with a guide rod 34 that vertically penetrates the mounting frame 1. The top end of the elastic connecting rod 32 is rotatably connected to one end of an adjusting screw 35. The other end of the adjusting screw 35 is threaded through the mounting frame 1 and connected to a handwheel.

[0030] When a membrane breakage occurs, column 2 falls due to the loss of membrane tension support. This causes the elastic connecting rod 32 to stretch, which in turn causes column 2 to move away from its original working position and trigger the detection sensor 4. The position of column 2 can be adjusted by adjusting screw 35.

[0031] The connector 3 used in Embodiment 2 has low cost but short service life; while the connector 3 used in Embodiment 3 has higher cost than that in Embodiment 2, but has a longer service life and higher stability. In practice, those skilled in the art can flexibly choose the connector 3 as needed, and it is not limited to the two sets of connectors 3 mentioned above.

[0032] Example 4

[0033] Please see the appendix Figures 1-2Based on Example 1, the alarm mechanism in this example includes a controller 5 electrically connected to the detection sensor 4, and a warning light 6 electrically connected to the controller 5. The warning light 6 can be an audible and visual alarm.

[0034] Furthermore, the controller 5 is also connected to the film winding and unwinding equipment in the aluminized film washing machine (the film winding and unwinding equipment are conventional equipment in the aluminized film washing machine). When the detection sensor 4 detects that the column 2 has moved to a preset position, the controller 5 stops the film winding and unwinding equipment. In this way, the winding and unwinding actions of the aluminized film body 10 are forcibly stopped when the film breaks, so as to avoid further stretching or accumulation of the broken film, so that the broken film area can be manually maintained later.

[0035] Example 5

[0036] Please see the appendix Figures 1-2 Based on embodiment 1, two sets of protective shells 7 are symmetrically slidably mounted on the mounting frame 1. Specifically, the outer wall of the transverse section of the mounting frame 1 is provided with a sliding strip, and the inner wall of the protective shell 7 is provided with a sliding groove adapted to the sliding strip, so that the protective shell 7 can slide along the transverse section of the mounting frame 1. The opposite side and the bottom of the two sets of protective shells 7 are hollow, and the two sets of protective shells 7 are in contact to cover the outside of the column 2, the connector 3 and the detection sensor 4.

[0037] The protective shell 7 is a magnetically shielded protective shell, which can be made of materials such as permalloy, copper, or aluminum. This protective shell 7 not only provides reliable dustproof, waterproof, and mechanical protection for structures such as the column 2 and the detection sensor 4, but also significantly reduces electromagnetic interference generated by external metal objects through the magnetic shielding characteristics of the protective shell 7, avoiding affecting the stable use of the detection sensor 4. This not only improves the detection accuracy and sensitivity of the detection sensor 4, but also prevents the detection sensor 4 from being accidentally triggered and affecting the operation of the aluminum film washing machine.

[0038] Furthermore, a fixing block 9 is hinged to the protective shell 7, and a locking block is provided on the fixing block 9. The mounting bracket 1 has several sets of slots 8 for the locking blocks to be inserted after the fixing block 9 is flipped over, such as... Figure 2 As shown, the slot 8 is located on the top of the mounting frame 1. After the protective shell 7 is moved to the desired position, the fixing block 9 is flipped so that the card block on the fixing block 9 is inserted into the corresponding slot 8, thus fixing the protective shell 7 to the designated position on the mounting frame 1. In this way, the two sets of protective shells 7 protect the column 2 and the detection sensor 4 and other structures. The column 2 and the detection sensor 4 can be maintained by opening the protective shell 7.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A film breakage alarm device for an aluminized film washing machine, comprising a mounting bracket (1) disposed on the aluminized film washing machine, characterized in that: A column (2) is connected to the mounting frame (1) via a connector (3). The column (2) is used to slide in contact with the top surface of the aluminum-coated film body (10) in the aluminum-coated film washing machine. The column (2) is displaced when the aluminum-coated film body (10) breaks. A detection sensor (4) is provided on the mounting frame (1) and on one side of the aluminum-coated film body (10). The detection sensor (4) is connected to an alarm mechanism. The detection sensor (4) is used to trigger the alarm mechanism when the column (2) is detected to have moved to a preset position.

2. The film breakage alarm device for an aluminized film washing machine according to claim 1, characterized in that: The column (2) is a hollow cylindrical metal structure, and the detection sensor (4) is an explosion-proof inductive proximity sensor.

3. The film breakage alarm device for an aluminized film washing machine according to claim 1, characterized in that: The connector (3) includes a wire connector one that passes through the center of the column (2), and the two ends of the wire connector one are connected to the mounting bracket (1) through a wire connector two.

4. The film breakage alarm device for an aluminized film washing machine according to claim 1, characterized in that: The connector (3) includes a connecting frame (31) sleeved on the shaft of the column (2). The top of the connecting frame (31) is provided with an elastic connecting rod (32). The outer wall of the fixed section of the elastic connecting rod (32) is sleeved with a connecting plate (33). The connecting plate (33) is provided with a guide rod (34) that passes through the mounting frame (1) vertically. The top end of the elastic connecting rod (32) is rotatably connected to one end of an adjusting screw (35). The other end of the adjusting screw (35) is threaded through the mounting frame (1) and connected to a handwheel.

5. The film breakage alarm device for an aluminized film washing machine according to claim 1, characterized in that: The alarm mechanism includes a controller (5) electrically connected to the detection sensor (4) and an alarm light (6) electrically connected to the controller (5).

6. The film breakage alarm device for an aluminized film washing machine according to claim 5, characterized in that: The controller (5) is also connected to the film winding device and the film unwinding device in the aluminized film washing machine, and is used to control the film winding device and the film unwinding device to stop working when the detection sensor (4) detects that the column (2) has moved to a preset position.

7. The film breakage alarm device for an aluminized film washing machine according to claim 1, characterized in that: Two sets of protective shells (7) are symmetrically slidably mounted on the mounting bracket (1). The two sets of protective shells (7) are hollow on opposite sides and at the bottom. The two sets of protective shells (7) are in contact to cover the outside of the column (2), connector (3) and detection sensor (4). The protective shells (7) are magnetic shielding protective shells.

8. The film breakage alarm device for an aluminized film washing machine according to claim 7, characterized in that: A fixing block (9) is hinged to the protective shell (7), and a locking block is provided on the fixing block (9). Several sets of slots (8) are provided on the mounting frame (1) for the locking block to be inserted after the fixing block (9) is flipped.

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