Film breaking sensing assembly for workpiece film tearing and pasting device and film tearing and pasting device

Abstract

The utility model belongs to the technical field of film tearing devices, and provides a film breaking induction assembly for a workpiece film tearing and pasting device and the film tearing and pasting device. The first film guide part is movably arranged on the workpiece, the second film guide part is movably arranged on the first film guide part, the first film guide part and the second film guide part are both located on a moving path of a film torn off from the workpiece, and the film is wound on the outer side of the first film guide part and the outer side of the second film guide part. Compared with the prior art, by arranging the first film guide piece and the second film guide piece which are used for wrapping the film, when the film is broken, the second film guide piece is switched to the second working position, so that the film tearing and pasting device stops working; when the film tearing and pasting device is used, an operator needs to wrap the film on the first film guiding piece and the second film guiding piece again, the second film guiding piece returns to the first working position, the film tearing and pasting device can be restarted, the integrity of the film newly pasted on the workpiece is finally guaranteed through the design, and it is guaranteed that the appearance of the workpiece is attractive.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tear membrane device technical field, specifically related to a kind of film breaking sensing assembly and tear membrane device for workpiece tear membrane device. BACKGROUND

[0002] Tear membrane device is a kind of equipment specially used for tearing and pasting film on the surface of stainless steel strip, aims at covering a layer of protective film on the surface of stainless steel strip before processing, to prevent it from being damaged in subsequent processing process. Traditionally, in the edge treatment, gluing and roll forming process of stainless steel strip, the surface of stainless steel strip is easily damaged, so a layer of protective film needs to be pasted on its surface before processing. Before the stainless steel strip leaves the factory, in order to the appearance of product, the original protective film needs to be torn off, and then a new layer of protective film is covered.

[0003] However, the existing tear membrane device has certain limitations. Especially when rolling up the original protective film on the workpiece, due to the lack of effective protective film detection device, once the original protective film is broken, the old protective film covered on the workpiece cannot be completely torn off in the film tearing process. At this time, if the operator fails to discover in time, the new protective film will continue to cover the workpiece. This not only causes the surface of stainless steel strip to cover two layers of protective film, seriously affecting the appearance of workpiece, but also makes the old protective film affect the adhesion of new protective film to workpiece, resulting in the phenomenon of new protective film falling off in subsequent handling process. UTILITY MODEL CONTENTS

[0004] The utility model solves the technical problem to be solved for the present situation of prior art, and provides a kind of film breaking sensing assembly and tear membrane device for workpiece tear membrane device.

[0005] The technical scheme adopted by the utility model to solve the above technical problems is: a kind of film breaking sensing assembly and tear membrane device for workpiece tear membrane device are provided, for detecting whether the film torn from workpiece is broken, comprising:

[0006] First membrane guide piece;

[0007] Second membrane guide piece, movably arranged on the first membrane guide piece, the first membrane guide piece and the second membrane guide piece are located on the moving path of the film torn from the workpiece, and the film is wrapped around the outside of the first membrane guide piece and the second membrane guide piece;

[0008] The second membrane guide piece has first working position and second working position;

[0009] When the film is normally wrapped around the outside of the first membrane guide piece and the second membrane guide piece, the film abuts against the second membrane guide piece, and is located at the first working position;

[0010] When the film is broken, the second film guide member moves from the first working position to the second working position.

[0011] In the film breaking sensing assembly for the workpiece film tearing device, the second film guide member is movably arranged on the first film guide member.

[0012] In the film breaking sensing assembly for the workpiece film tearing device, the second film guide member is rotatably arranged on the first film guide member.

[0013] In the film breaking sensing assembly for the workpiece film tearing device, the second film guide member comprises a sleeve, a first segment and a second segment, the sleeve is rotatably arranged on the first film guide member, the first segment and the second segment are both connected to the sleeve, and the center of gravity of the second film guide member is deviated from the position of the first segment, so that the second film guide member rotates to the second working position when the film is broken.

[0014] In the film breaking sensing assembly for the workpiece film tearing device, the first film guide member comprises a film guide shaft, a connecting seat and a mounting seat connected in sequence, the sleeve is rotatably arranged on the mounting seat, and the first segment extends towards the film guide shaft through the connecting seat.

[0015] In the film breaking sensing assembly for the workpiece film tearing device, the film guide shaft is provided with a receiving groove, and at least a part of the first segment is located in the receiving groove when the second film guide member is in the first working position.

[0016] In the film breaking sensing assembly for the workpiece film tearing device, the elastic member has one end connected to the mounting seat and the other end connected to the second segment.

[0017] When the film is wrapped around the outside of the first film guide member and the second film guide member, and the second film guide member is in the first working position, the elastic member is in a stretched state.

[0018] When the film is broken, the elastic member restores the stretching and drives the second film guide member to rotate to the second working position.

[0019] In the film breaking sensing assembly for the workpiece film tearing device, a sensor is arranged on the mounting seat, and the sensor is used to detect the position of the second film guide member by sensing the position of the second segment.

[0020] The above-mentioned film-breaking sensing component for a workpiece film-tearing device further includes a protective shell connected to the outside of the guide film shaft. A guide space is formed between the protective shell and the connecting seat to provide guidance for the movement of the film. A guide groove is provided on the protective shell, and one end of the first section is movably inserted into the guide groove to provide guidance for the rotation of the second guide film component.

[0021] This utility model also proposes a film-tearing and applying device to solve the above-mentioned technical problems, including the above-mentioned film-breaking sensing component for a workpiece film-tearing and applying device.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) By setting a first guide film component and a second guide film component for film wrapping, and enabling the second guide film component to switch between the first working position and the second working position, when the film breaks, the second guide film component automatically switches to the second working position, causing the film tearing and pasting device to stop working. The operator needs to rewrap the film on the first guide film component and the second guide film component and ensure that the second guide film component returns to the first working position so that the film tearing and pasting device can be restarted. This design ultimately ensures the integrity of the newly pasted film on the workpiece and ensures the aesthetic appearance of the workpiece.

[0024] (2) By setting a bushing on the second guide film and rotatably mounting the bushing on the mounting seat of the first guide film, the rotational connection between the second guide film and the first guide film is realized, providing the necessary conditions for the second guide film to switch between the first working position and the second working position.

[0025] (3) The elastic element is used to improve the reaction speed of the second guide film element when switching from the first working position to the second working position, thereby accelerating the feedback speed of the membrane breakage sensing component. Attached Figure Description

[0026] Figure 1 This is a perspective view of a film-breaking sensing component for a workpiece film-tearing device according to the present invention.

[0027] Figure 2 This is a three-dimensional view of the first guiding film component.

[0028] Figure 3 This is a 3D view of the protective casing.

[0029] In the figure, 100 is the first guide film component; 110 is the guide film shaft; 111 is the receiving groove; 120 is the connecting seat; 130 is the mounting seat; 200 is the second guide film component; 210 is the bushing; 220 is the first section; 230 is the second section; 300 is the elastic element; 400 is the sensor; 500 is the protective shell; and 510 is the guide groove. Detailed Implementation

[0030] The technical solutions of the present application are further described below in conjunction with the drawings, but the present application is not limited to these embodiments.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present application are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications will also change accordingly.

[0032] As shown in Figures 1 to 3 , in the present scheme, the application of the film breaking sensing assembly in the workpiece film tearing and pasting device and the specific structure are described in detail.

[0033] A film breaking sensing assembly for a workpiece film tearing and pasting device, comprising: a first film guide 100 and a second film guide 200.

[0034] Specifically, the second film guide 200 is movably arranged on the first film guide 100, and the first film guide 100 and the second film guide 200 are both located on the moving path of the film torn from the workpiece, and the film is wrapped around the outside of the first film guide 100 and the second film guide 200; the second film guide 200 has a first working position and a second working position; when the film is normally wrapped around the outside of the first film guide 100 and the second film guide 200, the film abuts against the second film guide 200 and makes it located at the first working position; when the film breaks, the second film guide 200 moves from the first working position to the second working position.

[0035] In operation, after one end of the original film on the workpiece is torn from the workpiece, it is first wrapped around the first film guide 100 and the second film guide 200, and then wound on the film roller. The wrapped film is in a U-shaped form at the position of the first film guide 100 and the second film guide 200, and the second film guide 200 is in close contact with the inner surface of the bottom of the U-shaped form.

[0036] Under normal conditions, the film is in close contact with the second film guide 200, and under the action of the pushing force of the film, the second film guide 200 remains at the first working position, and the film tearing and pasting device performs film tearing and pasting processes on the workpiece. When the film breaks, the film wrapped around the first film guide 100 and the second film guide 200 and the part not torn from the workpiece are disconnected, at which time the film no longer exerts a pushing force on the second film guide 200, causing the second film guide 200 to switch from the first working position to the second working position, and the film tearing and pasting device is immediately paused. The operator needs to wrap the original film on the workpiece around the first film guide 100 and the second film guide 200, and make the second film guide 200 return to the first working position, and then the film tearing and pasting device can resume normal operation.

[0037] In this scheme, by setting the first film guide 100 and the second film guide 200 for wrapping the film, and enabling the second film guide 200 to switch between the first working position and the second working position, when the film breaks, the second film guide 200 automatically switches to the second working position, so that the film tearing device stops working. The operator needs to re-wrap the film on the first film guide 100 and the second film guide 200 and ensure that the second film guide 200 returns to the first working position, so that the film tearing device can be restarted. This design ultimately ensures the integrity of the newly pasted film on the workpiece and ensures the beauty of the appearance of the workpiece.

[0038] In one embodiment, the movable connection between the second film guide 200 and the first film guide 100 is achieved by movably setting the second film guide 200 on the first film guide 100 (not shown in the figure). For example, a plurality of springs are arranged between the first film guide 100 and the second film guide 200. When the film is normally wrapped on the first film guide 100 and the second film guide 200, the film pushes the second film guide 200 to overcome the elastic force of the spring, so that the second film guide 200 compresses the spring and moves to the first working position. When the film breaks and no longer exerts a pushing force on the second film guide 200, the spring returns to the stretched state and pushes the second film guide 200 to move to the second working position.

[0039] In another embodiment, the movable connection between the second film guide 200 and the first film guide 100 is achieved by rotary connection (see Figure 1 ).

[0040] Specifically, the second film guide 200 includes a shaft sleeve 210, a first section 220 and a second section 230, the shaft sleeve 210 is rotatably arranged on the first film guide 100, the first section 220 and the second section 230 are both connected to the shaft sleeve 210, and the center of gravity of the second film guide 200 is biased towards the position of the first section 220, so as to make the second film guide 200 rotate to the second working position when the film breaks.

[0041] In the initial state, the rotary connection between the shaft sleeve 210 and the first film guide 100 can be achieved by setting a pin on the first film guide 100 and inserting the pin into the shaft sleeve 210. In order to ensure that the shaft sleeve 210 can rotate smoothly around the pin, the gap between the shaft sleeve 210 and the pin should be kept between 0.1 to 0.5 millimeters. The second film guide 200 is suspended, and since its center of gravity is biased towards the position of the first section 220, in the initial state, the first section 220 is located on the side away from the first film guide 100 ( Figure 1 left side), while the second section 230 is close to the first film guide 100 ( Figure 1 right side).

[0042] When the film is wrapped around the first film guide 100 and the second film guide 200, the second film guide 200 will rotate clockwise around the pin under the thrust of the film (see Fig. 2B), so that the first section 220 is close to the first film guide 100 and the second section 230 is away from the first film guide 100, thereby making the second film guide 200 in the first working position. If the film is broken, the second film guide 200 will rotate counterclockwise around the pin under the action of gravity to the second working position (see Fig. 2C) because it loses the thrust of the film. Figure 1 Figure 1

[0043] In the present scheme, the first film guide 100 comprises a film guide shaft 110, a connecting seat 120 and a mounting seat 130 connected in sequence, and the shaft sleeve 210 is rotationally arranged on the mounting seat 130, and the first section 220 extends towards the film guide shaft 110 through the connecting seat 120.

[0044] The connecting seat 120 is used as a supporting component of the entire film breakage sensing assembly and is used to connect with the remaining components of the sticker film device. The mounting seat 130 provides support for the rotational connection between the second film guide 200 and the first film guide 100. The film guide shaft 110 is used for the film to wrap around.

[0045] Preferably, the film guide shaft 110 is provided with a containing groove 111, and at least part of the first section 220 is located in the containing groove 111 when the second film guide 200 is in the first working position.

[0046] The present scheme further comprises an elastic member 300, one end of which is connected to the mounting seat 130, and the other end of which is connected to the second section 230; when the film is wrapped around the outside of the first film guide 100 and the second film guide 200, the elastic member 300 is in a stretched state when the second film guide 200 is in the first working position; when the film is broken, the elastic member 300 restores to stretch and drives the second film guide 200 to rotate to the second working position.

[0047] The elastic member 300 is preferably a spring, both ends of which are provided with hooks, and the mounting seat 130 and the second section 230 are both provided with hole positions for hanging the hooks, so as to realize the connection between the elastic member 300 and the mounting seat 130 and the second section 230.

[0048] The present scheme further comprises a sensor 400 arranged on the mounting seat 130, and the sensor 400 is used to detect the position of the second film guide 200 by sensing the position of the second section 230.

[0049] ​​The sensor 400 is electrically connected with the control system of the film tearing and pasting device, and is used for transmitting sensing information to the control system when the second film guiding member 200 is switched from the first working position to the second working position. After receiving the sensing information, the control system controls the film tearing and pasting device to pause working and issue an alarm to remind the operator to timely rewrap the broken film on the workpiece on the first film guiding member 100 and the second film guiding member 200.

[0050] The scheme also comprises a protective shell 500 connected outside the film guiding shaft 110, and a guide space is formed between the protective shell 500 and the connecting seat 120, which is used for guiding the movement of the film. The protective shell 500 is provided with a guide groove 510, and one end of the first section 220 is movably inserted into the guide groove 510, so as to guide the rotation of the second film guiding member 200.

[0051] It should be noted that the description such as "first", "second", "one" and the like in the present application is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise specifically limited. The terms "connection", "fixation" and the like should be understood in a broad sense, for example, "fixation" can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium; can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise specifically limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0052] In addition, the technical solutions of various embodiments of the present application can be combined with each other, but it must be based on the fact that a person skilled in the art can realize it, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.

[0053] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or replace them with similar ways, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

Claims

1. A film breakage sensing component for a workpiece film-peeling device, used to detect whether the film peeled off the workpiece is broken, characterized in that, include: First guiding film component; The second guiding film is movably disposed on the first guiding film. Both the first and second guiding film are located on the movement path of the film torn off the workpiece, and the film is wrapped around the outside of the first and second guiding film. The second guiding film component has a first working position and a second working position; When the film is normally wrapped around the outside of the first guide film and the second guide film, the film abuts against the second guide film and is positioned in the first working position; When the film breaks, the second guide film component moves from the first working position to the second working position.

2. The film breakage sensing component for a workpiece film tearing device as described in claim 1, characterized in that, The second guide film is movably disposed on the first guide film.

3. The film breakage sensing component for a workpiece film tearing device as described in claim 1, characterized in that, The second guide film is rotatably mounted on the first guide film.

4. The film breakage sensing component for a workpiece film tearing device as described in claim 3, characterized in that, The second guide film component includes a bushing, a first segment, and a second segment. The bushing is rotatably mounted on the first guide film component. Both the first segment and the second segment are connected to the bushing, and the center of gravity of the second guide film component is biased towards the position of the first segment, so as to rotate the second guide film component to the second working position when the film breaks.

5. The film breakage sensing component for a workpiece film tearing device as described in claim 4, characterized in that, The first guide film component includes a guide film shaft, a connecting seat, and a mounting seat connected in sequence. The bushing is rotatably mounted on the mounting seat, and the first segment passes through the connecting seat and extends in the direction of the guide film shaft.

6. The film breakage sensing component for a workpiece film tearing device as described in claim 5, characterized in that, The guide shaft is provided with a receiving groove, and when the second guide member is in the first working position, at least a portion of the first segment is located in the receiving groove.

7. The film breakage sensing component for a workpiece film tearing device as described in claim 5, characterized in that, It also includes an elastic element, one end of which is connected to the mounting base, and the other end of which is connected to the second segment; When the film is wrapped around the outside of the first guide film and the second guide film, and the second guide film is located in the first working position, the elastic element is in a stretched state; When the film breaks, the elastic element resumes its extension and drives the second guide film element to rotate to the second working position.

8. The film breakage sensing component for a workpiece film tearing device as described in claim 5, characterized in that, It also includes a sensor disposed on the mounting base, the sensor being used to detect the position of the second guide film by sensing the position of the second segment.

9. The film breakage sensing component for a workpiece film tearing device as described in claim 5, characterized in that, It also includes a protective shell connected to the outside of the guide film shaft. A guide space is formed between the protective shell and the connecting seat to provide guidance for the movement of the film. A guide groove is provided on the protective shell, and one end of the first section is movably inserted into the guide groove to provide guidance for the rotation of the second guide film component.

10. A film-peeling device, characterized in that, Includes a film-breaking sensing component for a workpiece film-tearing device as described in any one of claims 1 to 9.

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