Mounting and limiting device for gasket protective film

Abstract

The utility model belongs to the technical field of gasket protective films, and particularly relates to a gasket protective film mounting and limiting device which comprises a mounting shaft, a bottom roll is mounted on the surface of the mounting shaft, a film is wound on the surface of the bottom roll, a gasket protective film is adhered to the surface of the film, and a vertical rod is fixedly connected to the surface of the mounting shaft. A sliding groove is formed in the surface of the vertical rod, a through groove is formed in the surface of the vertical rod, a mounting block is slidably connected into the sliding groove through a spring, a guide shaft is rotatably connected to the surface of the mounting block, a connecting plate is fixedly connected to the surface of the guide shaft, and a rotating shaft is rotatably connected to the surface of the connecting plate. After the film roll bonded with the protective film is cut, the notch is attached to the surface of the guide shaft again, so that the film roll is convenient to use next time, and meanwhile, the situation that in the using process, when the notch is held by hand, excessive unwinding is easily caused after the notch is released from the hand, and waste is caused can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gasket protective films, in particular to an installation limiting device for a gasket protective film. Background Art

[0002] Gaskets are usually used to prevent pressure, corrosion and leakage between two objects due to natural thermal expansion and contraction of pipelines. Since the machined surface cannot be perfect, gaskets can be used to fill the irregularities. They are usually made of paper, rubber sheets or copper sheets. During the gasket production process, a protective film is usually adhered to the surface to avoid bumps, scratches, etc. that affect the performance of the gasket. Application number CN202123057886.8 discloses a gasket protective film installation limit assembly, specifically a gasket protective film installation limit assembly, the gasket protective film installation limit assembly includes: a protective film roll, a plurality of independent protective films are arranged on the surface of the protective film roll; a winding roller, the protective film roll is sleeved on the surface of the winding roller and centered; and an anti-scattering assembly, including a fixed column, a bundling assembly and a limiting top holding assembly; the beneficial effect is: by using the plurality of independent protective films arranged on the surface of the protective film roll to cooperate with the gasket one by one, the waste of protective film is reduced, and after the protective film roll is partially used, the protective film roll is limited and fixed by the anti-scattering assembly to prevent the protective film roll from being scattered.

[0003] The gasket protective film installation limit device in the existing and above technologies lacks a positioning device when in use. After the film roll with the protective film is cut, the cut is re-attached to the surface of the film roll, but this will make it inconvenient to find the cut when using it next time, and during use, when holding the cut, it is easy to cause excessive unwinding after it slips out of the hand, resulting in waste. Therefore, in order to solve the above problems, a gasket protective film installation limit device is proposed. Utility Model Content

[0004] In order to make up for the shortcomings of the prior art, the gasket protective film installation limit device lacks a positioning device when in use. After the film with the protective film is cut, the incision is re-attached to the surface of the film. However, this will make it inconvenient to find the incision when using it next time. In addition, when holding the incision during use, it is easy to cause excessive unwinding after it slips out of the hand, resulting in waste. The utility model proposes a gasket protective film installation limit device.

[0005] The technical solution adopted by the utility model to solve its technical problems is: the utility model discloses a gasket protective film installation and limiting device, comprising a mounting shaft, a bottom roll is installed on the surface of the mounting shaft, a film roll is wound on the surface of the bottom roll, a gasket protective film is bonded on the surface of the film roll, a vertical rod is fixedly connected to the surface of the mounting shaft, a sliding groove is provided on the surface of the vertical rod, a through groove is provided on the surface of the vertical rod, a mounting block is slidably connected in the sliding groove through a spring, a guide shaft is rotatably connected to the surface of the mounting block, a connecting plate is fixedly connected to the surface of the guide shaft, a rotating shaft is rotatably connected to the surface of the connecting plate, a pressing plate is slidably connected in the sliding groove, a handle is slidably connected to the surface of the vertical rod, one end of the handle passes through the through groove and is threadedly connected to the pressing plate, the mounting shaft is inserted into the bottom roll, and then the cutout of the film roll is attached to the surface of the guide shaft, and at the same time the rotating shaft is pressed on the surface of the second layer of interleaving. The film is then unwound by pulling the film roll, and when the film roll is unwound, the spring drives the mounting block to move downward, so that the mounting block is always in contact with the film roll to position the film. After the film roll is used up, the film roll is cut, and then the opening of the film roll is pasted on the surface of the guide shaft. The film roll with the protective film is cut by the pressure plate in cooperation with the guide shaft, and the cut is again pasted on the surface of the guide shaft, so as to facilitate the next use. At the same time, it can avoid the situation that when the cut is held in the hand during use, it is easy to unwind excessively after it slips out of the hand, resulting in waste.

[0006] Preferably, a sliding cavity is provided on the surface of the vertical rod, a slider is slidably connected in the sliding cavity, a cutter head is fixedly connected to the surface of the slider, a guide groove is provided on the surface of the sliding cavity, the cutter head passes through the guide groove below the pressure plate and is slidably connected, a sliding shaft is fixedly connected to the surface of the slider, the sliding shaft passes through the guide groove above the pressure plate and is slidably connected, and a knob is rotatably connected to the end, the sliding shaft is held by the hand to slide in the guide groove above the pressure plate, and the slider is driven at the same time, the slider drives the cutter head to move, and the rubber strip is cut by the cutter head.

[0007] Preferably, a limiting groove is provided on the surface of the sliding cavity, and the projected area of ​​the limiting groove is larger than the projected area of ​​the slider. Two spring plates are fixedly connected in the sliding cavity, and a pair of the spring plates are respectively located on both sides of the guide groove below the pressure plate. Two connecting plates are provided, and a pair of the connecting plates are symmetrically distributed with respect to the central axis of the rotating shaft. After the slider is used, it is slid above the spring plate, and under the action of the elastic force generated by the spring plate, the slider is pushed out through the limiting groove for limiting, so as to prevent the cutter head from sliding randomly and accidentally cutting the film. The design of the two connecting plates can improve the stability of the rotating shaft during rotation.

[0008] Preferably, a roller is slidably connected to the slider via a spring, two rollers are provided, and a pair of rollers are symmetrically distributed around the central axis of the slider, and the friction force of the slider in the sliding cavity can be reduced by the rollers.

[0009] Preferably, a card slot is provided on the surface of the vertical rod, and the card slot is matched with the handle, so that the pressure plate can be positioned conveniently through the card slot, and it is more convenient to adapt to films of different thicknesses.

[0010] Preferably, the guide shaft surface is provided with a plurality of grooves, and the guide shaft surface is coated with an oil layer. The grooves on the guide shaft surface can reduce the contact area between the film and the guide shaft, and cooperate with the coated oil layer to reduce the adhesion of the film on the guide shaft surface, making it easier for staff to pull it.

[0011] The utility model is beneficial in that:

[0012] 1. The utility model uses a pressure plate to cooperate with a guide shaft to cut the film with a protective film, and then the cut is re-attached to the surface of the guide shaft, so as to facilitate the next use. At the same time, it can avoid the situation that the cut slips out of the hand when holding the film during use, which may cause excessive unwinding and waste.

[0013] 2. The utility model adopts the structural design of the spring sheet and the limit groove. After the slider is used, it is slid above the spring sheet. Under the elastic force generated by the spring sheet, the slider is pushed out through the limit groove to limit the position, so as to prevent the cutter head from sliding randomly and cutting the film by mistake. The design of the two connecting plates can improve the stability of the rotating shaft when it rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 This is a schematic diagram of the bottom roll structure of Example 1;

[0016] Figure 2 It is a schematic diagram of a partial cross-sectional structure of a vertical pole of Embodiment 1;

[0017] Figure 3 For Example 1 Figure 2 Schematic diagram of the structure at A in the middle;

[0018] Figure 4 It is a schematic diagram of the front cross-sectional structure of the pressing plate of the first embodiment;

[0019] Figure 5 For Example 1 Figure 4 Schematic diagram of the structure at B in the middle;

[0020] Figure 6 It is a schematic diagram of the structure of the notch of the second embodiment.

[0021] In the figure: 1. mounting shaft; 2. vertical pole; 3. slot; 4. rotating shaft; 5. bottom roll; 6. film; 7. pressure plate; 8. guide groove; 9. slide groove; 91. mounting block; 10. slide cavity; 11. roller; 12. slider; 13. through groove; 14. handle; 15. spring piece; 16. guide shaft; 17. cutter head; 18. notch; 19. connecting plate; 20. limit groove; 21. slide shaft. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] Embodiment 1

[0024] See also Figure 1-5 As shown, a gasket protective film installation and limiting device comprises a mounting shaft 1, a bottom roll 5 is mounted on the surface of the mounting shaft 1, a film roll 6 is wound on the surface of the bottom roll 5, a gasket protective film is bonded to the surface of the film roll 6, a vertical pole 2 is fixedly connected to the surface of the mounting shaft 1, a slide groove 9 is provided on the surface of the vertical pole 2, a through groove 13 is provided on the surface of the vertical pole 2, a mounting block 91 is slidably connected in the slide groove 9 through a spring, a guide shaft 16 is rotatably connected to the surface of the mounting block 91, a connecting plate 19 is fixedly connected to the surface of the guide shaft 16, a rotating shaft 4 is rotatably connected to the surface of the connecting plate 19, a pressing plate 7 is slidably connected in the slide groove 9, a handle 14 is slidably connected to the surface of the vertical pole 2, one end of the handle 14 passes through the through groove 13 and is threadedly connected to the pressing plate 7;

[0025] During operation, the installation shaft 1 is inserted into the bottom roll 5, and then the cutout of the film 6 is attached to the surface of the guide shaft 16. At the same time, the rotating shaft 4 is pressed on the surface of the second layer of the interleaving roll, and then the pressure plate 7 is moved downward so that the pressure plate 7 is pressed above the interleaving roll, and then the handle 14 is tightened to fix the pressure plate 7. At this time, the film 6 is pulled so that the film 6 drives the bottom roll 5 to rotate on the surface of the installation shaft 1. At the same time, the side with the gasket protective film drives the guide shaft 16 to rotate. When the film 6 rotates, the rotating shaft 4 is also driven to rotate. The film 6 can be moved by the rotation of the rotating shaft 4 and the guide shaft 16. When the thickness of the film 6 is gradually reduced, the spring drives the mounting block 91 to move downward, so that the rotating shaft 4 is always in contact with the film 6 to position the film 6. After the film 6 is used up, the film 6 is cut, and then the opening of the film 6 is pasted on the surface of the guide shaft 16. After the film 6 with the protective film is cut by the pressure plate 7 in cooperation with the guide shaft 16, the cut is again pasted on the surface of the guide shaft 16, so as to facilitate the next use. At the same time, it can avoid the situation that when the cut is held in the hand during use, it is easy to cause excessive unwinding and waste.

[0026] A sliding cavity 10 is provided on the surface of the upright 2, a slider 12 is slidably connected in the sliding cavity 10, a cutter head 17 is fixedly connected to the surface of the slider 12, a guide groove 8 is provided on the surface of the sliding cavity 10, the cutter head 17 passes through the guide groove 8 below the pressure plate 7 for sliding connection, a sliding shaft 21 is fixedly connected to the surface of the slider 12, the sliding shaft 21 passes through the guide groove 8 above the pressure plate 7 for sliding connection, and a knob is rotatably connected to the end; when working, the sliding shaft 21 is held by the hand to slide in the guide groove 8 above the pressure plate 7, and the slider 12 is driven at the same time, and the slider 12 drives the cutter head 17 to move, and the rubber strip is cut by the cutter head 17.

[0027] A limiting groove 20 is provided on the surface of the sliding cavity 10, and the projection area of ​​the limiting groove 20 is larger than the projection area of ​​the slider 12. Two spring plates 15 are fixedly connected in the sliding cavity 10, and a pair of the spring plates 15 are respectively located on both sides of the guide groove 8 below the pressure plate 7. Two connecting plates 19 are provided, and a pair of the connecting plates 19 are symmetrically distributed with respect to the central axis of the rotating shaft 4. When working, after the slider 12 is used, it is slid to the top of the spring plate 15, and under the elastic force generated by the spring plate 15, the slider 12 is pushed out through the limiting groove 20 for limiting, so as to prevent the cutter head 17 from sliding randomly and accidentally cutting the film 6. The design of the two connecting plates 19 can improve the stability of the rotating shaft 4 when it rotates.

[0028] The slider 12 is slidably connected with a roller 11 via a spring. Two rollers 11 are provided, and a pair of rollers 11 are symmetrically distributed around the central axis of the slider 12 . When working, the rollers 11 can reduce the friction of the slider 12 in the slide cavity 10 .

[0029] A slot 3 is provided on the surface of the upright pole 2, and the slot 3 cooperates with the handle 14; during operation, the pressing plate 7 can be positioned conveniently through the slot 3, so as to be more convenient for adapting to rolls of different thicknesses.

[0030] Example 2 Please refer to Figure 6 As shown, compared with Example 1, as another implementation of the utility model, a plurality of notches 18 are provided on the surface of the guide shaft 16, and an oil layer is coated on the surface of the guide shaft 16; when working, the notches 18 provided on the surface of the guide shaft 16 can reduce the contact area between the film 6 and the guide shaft 16, and at the same time cooperate with the coated oil layer to reduce the adhesion of the film 6 on the surface of the guide shaft 16, making it easier for the staff to pull it.

[0031] Working principle: insert the installation shaft 1 into the bottom roll 5, then attach the cutout of the film 6 to the surface of the guide shaft 16, and at the same time, press the rotating shaft 4 on the surface of the second layer of interleaving, then move the pressure plate 7 downward so that the pressure plate 7 is pressed above the interleaving, and then tighten the handle 14 to fix the pressure plate 7. At this time, pull the film 6 so that the film 6 drives the bottom roll 5 to rotate on the surface of the installation shaft 1, and at the same time, the side with the gasket protective film will drive the guide shaft 16 to rotate, and the rotating shaft 4 will be driven to rotate while the film 6 rotates. The film 6 can be pulled and unwound by the rotation of the rotating shaft 4 and the guide shaft 16. When the thickness of the film 6 gradually decreases, the spring drives the installation block 91 to move downward so that the rotating shaft 4 always fits the film 6 to position the film 6. After the film 6 is used up, cut the film 6, and then unwind the film 6. The opening is adhered to the surface of the guide shaft 16. After the film 6 with the protective film is cut by the pressure plate 7 and the guide shaft 16, the cut is re-attached to the surface of the guide shaft 16, so as to facilitate the next use. At the same time, it can avoid the situation that when the cut is held in the hand during use, it is easy to cause excessive unwinding after it slips out of the hand, causing waste. The hand-held sliding shaft 21 slides in the guide groove 8 above the pressure plate 7, and drives the slider 12 at the same time. The slider 12 drives the cutter head 17 to move, and the cutter head 17 cuts the rubber strip; after the slider 12 is used, it is slid to the top of the spring sheet 15. Under the elastic force generated by the spring sheet 15, the slider 12 is pushed out through the limiting groove 20 to limit it, so as to avoid the cutter head 17 sliding randomly and cutting the film 6 by mistake. The design of the two connecting plates 19 can improve the stability of the rotating shaft 4 when it rotates;

[0032] The roller 11 can reduce the friction of the slider 12 in the slide cavity 10. The card slot 3 can facilitate the positioning of the pressure plate 7, which is more convenient for adapting to films 6 of different thicknesses. The notch 18 opened on the surface of the guide shaft 16 can reduce the contact area between the film 6 and the guide shaft 16. At the same time, the oil layer applied can reduce the adhesion of the film 6 on the surface of the guide shaft 16, making it easier for the staff to pull it.

[0033] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A gasket protective film installation limit device, characterized in that: The invention comprises a mounting shaft (1), a bottom roll (5) is mounted on the surface of the mounting shaft (1), a film roll (6) is wound on the surface of the bottom roll (5), a gasket protective film is bonded to the surface of the film roll (6), a vertical pole (2) is fixedly connected to the surface of the mounting shaft (1), a slide groove (9) is provided on the surface of the vertical pole (2), a through groove (13) is provided on the surface of the vertical pole (2), a mounting block (91) is slidably connected in the slide groove (9) through a spring, a guide shaft (16) is rotatably connected to the surface of the mounting block (91), a connecting plate (19) is fixedly connected to the surface of the guide shaft (16), a rotating shaft (4) is rotatably connected to the surface of the connecting plate (19), a pressing plate (7) is slidably connected in the slide groove (9), a handle (14) is slidably connected to the surface of the vertical pole (2), one end of the handle (14) passes through the through groove (13) and is threadedly connected to the pressing plate (7).

2. The installation and limiting device for a gasket protective film according to claim 1, characterized in that: The surface of the vertical rod (2) is provided with a sliding cavity (10), a slider (12) is slidably connected in the sliding cavity (10), a cutter head (17) is fixedly connected to the surface of the slider (12), a guide groove (8) is provided on the surface of the sliding cavity (10), the cutter head (17) passes through the guide groove (8) below the pressure plate (7) for sliding connection, a sliding shaft (21) is fixedly connected to the surface of the slider (12), the sliding shaft (21) passes through the guide groove (8) above the pressure plate (7) for sliding connection, and a knob is rotatably connected to the end thereof.

3. The installation and limiting device for a gasket protective film according to claim 2, characterized in that: A limiting groove (20) is provided on the surface of the sliding cavity (10), and the projection area of ​​the limiting groove (20) is larger than the projection area of ​​the sliding block (12). Two spring sheets (15) are fixedly connected in the sliding cavity (10), and a pair of the spring sheets (15) are respectively located on both sides of the guide groove (8) below the pressure plate (7).

4. The installation and limiting device for a gasket protective film according to claim 3 is characterized in that: Two connecting plates (19) are provided, and a pair of connecting plates (19) are symmetrically distributed about the central axis of the rotating shaft (4).

5. The installation and limiting device for a gasket protective film according to claim 4, characterized in that: The slider (12) is slidably connected with a roller (11) via a spring. Two rollers (11) are provided, and a pair of rollers (11) are symmetrically distributed around the central axis of the slider (12).

6. The installation and limiting device for a gasket protective film according to claim 5, characterized in that: A clamping groove (3) is provided on the surface of the upright pole (2), and the clamping groove (3) is concavely matched with the handle (14).

7. The installation and limiting device for a gasket protective film according to claim 6, characterized in that: A plurality of notches (18) are provided on the surface of the guide shaft (16), and an oil layer is coated on the surface of the guide shaft (16).

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