Portable detachable dry film locking device

Abstract

The utility model discloses a portable detachable dry film locking device. The portable detachable dry film locking device comprises a rotating ring, an expansion sleeve and a locking sleeve, an external thread part is arranged on one side of the locking sleeve, a clamping part is arranged on the other side of the locking sleeve, and a first slope surface is arranged on the periphery of the clamping part; the expansion sleeve is arranged on the locking sleeve in a sleeving mode, a second slope face capable of making sliding contact with the first slope face is arranged on the inner circumference of the expansion sleeve, and the expansion sleeve is provided with an open groove capable of adapting to expansion of the expansion sleeve. And the rotating ring is in threaded connection with the external thread part, and the rotating ring can push the expansion sleeve to move towards one side of the clamping part in the process of screwing into the locking sleeve, so that the first slope surface and the second slope surface relatively slide, the inner diameter of the clamping part is gradually reduced, and meanwhile, the outer diameter of the expansion sleeve is gradually increased. By the adoption of the locking device, other tools are not needed, dismounting and mounting are convenient, the time for dismounting and mounting the dry film is shortened, dismounting and mounting efficiency is improved, foreign matter is avoided in the dismounting and mounting process, and the service life of the locking device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of dry film mounting of the film line, and particularly relates to a portable detachable dry film locking device. BACKGROUND

[0002] The film line is a key equipment in the manufacturing process of the circuit board, and with the high-speed development of the electronic circuit, the requirement for the equipment and material cleanliness is higher and higher. The replacement of the dry film is an essential link in the manufacturing process of the circuit board, and the generation of foreign matters in the replacement process has a significant influence on the quality. The dry film is frequently replaced in the production process, and a wrench is used in the dismounting and mounting of the dry film. When the nut is rotated, the wrench is rubbed with the dry film locking sleeve, which causes the generation of foreign matters. CONTENT OF THE UTILITY MODEL

[0003] In order to overcome the above-mentioned defects of the prior art, the utility model provides a portable detachable dry film locking device which can avoid the generation of foreign matters without using other tools.

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

[0005] A portable detachable dry film locking device, which comprises a rotating ring, an expansion sleeve and a locking sleeve. One side of the locking sleeve is provided with an external thread part, and the other side of the locking sleeve is provided with a clamping part. The outer periphery of the clamping part is provided with a first slope surface. The expansion sleeve is sleeved on the locking sleeve. The inner periphery of the expansion sleeve is provided with a second slope surface which can be in sliding contact with the first slope surface. The expansion sleeve is provided with a slot which can adapt to the expansion of the expansion sleeve. The rotating ring is threadedly connected with the external thread part. During the rotating ring is screwed into the locking sleeve, the expansion sleeve can be pushed to move to one side of the clamping part, so that the relative sliding between the first slope surface and the second slope surface occurs, which causes the inner diameter of the clamping part to gradually decrease, and at the same time causes the outer diameter of the expansion sleeve to gradually increase.

[0006] As a preferred scheme of the utility model, a gasket is arranged between the rotating ring and the expansion sleeve.

[0007] As a preferred scheme of the utility model, the end face of the rotating ring towards the gasket side is formed with a convex ring which can abut against the surface of the gasket.

[0008] As a preferred scheme of the utility model, the outer diameter of the convex ring is smaller than the outer diameter of the gasket.

[0009] As a preferred scheme of the utility model, the clamping part is composed of a plurality of clamping claws. The plurality of clamping claws are uniformly arranged along the circumferential direction of the locking sleeve. The first slope surface is arranged on the outer periphery of the clamping claw.

[0010] As a preferred scheme of the utility model, the one end of the expansion sleeve close to the rotating ring is equipped with the annular limiting part which projects radially.

[0011] As a preferred scheme of the utility model, the rotating ring is uniformly distributed with a plurality of anti-skid concave surfaces on the outer periphery.

[0012] The portable detachable dry film locking device of the utility model has the following beneficial effects compared with the prior art:

[0013] When the device is used, the dry film shaft is placed into the dry film cylinder, and the two ends of the dry film shaft are sleeved into the dry film locking device, specifically, the locking sleeve, the expansion sleeve and the rotating ring are sleeved in sequence, then the rotating ring is rotated clockwise, the rotating ring moves to the locking sleeve in the process, which can push the expansion sleeve to move to one side of the clamping part, so that the first slope surface and the second slope surface slide relatively, the inner diameter of the clamping part is gradually reduced by the principle of mutual force, the dry film shaft is clamped, at the same time, the outer diameter of the expansion sleeve is gradually increased, and the dry film cylinder is expanded. It can be seen that the dry film locking device of the utility model does not need to borrow other tools, is convenient to disassemble and assemble, reduces the time of disassembling and assembling the dry film, improves the disassembling and assembling efficiency, avoids the generation of foreign matters in the disassembling and assembling process, and prolongs the service life of the locking device. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0015] Fig. 1 The explosion diagram of the portable detachable dry film locking device provided by the embodiment of the utility model is shown in the figure.

[0016] Fig. 2 The assembly drawing of the portable detachable dry film locking device provided by the embodiment of the utility model is shown in the figure.

[0017] Fig. 3 The use state diagram of the portable detachable dry film locking device provided by the embodiment of the utility model is shown in the figure.

[0018] Markings in the figure:

[0019] Rotating ring 1, convex ring 11, anti-skid concave surface 12, expansion sleeve 2, second slope surface 21, slot 22, annular limiting part 23, locking sleeve 3, external thread part 31, clamping part 32, first slope surface 33, gasket 4, dry film shaft 5, dry film cylinder 6. DETAILED DESCRIPTION

[0020] 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 protection scope of the present utility model.

[0021] like Figs. 1 to 3 As shown in the figure, a convenient and detachable dry film locking device proposed in this embodiment of the present invention includes a rotating ring 1, an expansion sleeve 2, and a locking sleeve 3. One side of the locking sleeve 3 is provided with an external thread 31, and the other side of the locking sleeve 3 is provided with a clamping part 32. The outer periphery of the clamping part 32 is provided with a first slope surface 33. The expansion sleeve 2 is sleeved on the locking sleeve 3. The inner periphery of the expansion sleeve 2 is provided with a second slope surface 21 that can slide in contact with the first slope surface 33. The expansion sleeve 2 is provided with a slot 22 that can accommodate the expansion of the expansion sleeve 2. The rotating ring 1 is threadedly connected to the external thread 31. During the process of the rotating ring 1 screwing into the locking sleeve 3, it can push the expansion sleeve 2 towards the clamping part 32, thereby causing relative sliding between the first slope surface 33 and the second slope surface 21, resulting in a gradual decrease in the inner diameter of the clamping part 32 and a gradual increase in the outer diameter of the expansion sleeve 2.

[0022] When using this device, first place the dry film shaft 5 into the dry film cylinder 6. Then, fit the dry film locking device onto both ends of the dry film shaft 5, specifically by sequentially fitting the locking sleeve 3, expansion sleeve 2, and rotating ring 1. Next, rotate the rotating ring 1 clockwise. As the rotating ring 1 rotates towards the locking sleeve 3, it pushes the expansion sleeve 2 towards the clamping part 32, causing relative sliding between the first slope surface 33 and the second slope surface 21. Utilizing the principle of interaction force, the inner diameter of the clamping part 32 gradually decreases, clamping the dry film shaft 5. Simultaneously, the outer diameter of the expansion sleeve 2 gradually increases, tightening the dry film cylinder 6. Therefore, the dry film locking device of this embodiment does not require other tools, is easy to assemble and disassemble, reduces the time spent assembling and disassembling the dry film, improves assembly and disassembly efficiency, and avoids the generation of foreign objects during assembly and disassembly, extending the service life of the locking device.

[0023] For example, a washer 4 is provided between the rotating ring 1 and the expansion sleeve 2. The washer 4 is used to protect the connected surfaces and prevent the rotating ring 1 from contacting the expansion sleeve 2 during tightening and causing scratches or damage.

[0024] Exemplarily, an end face of the rotating ring 1 towards the gasket 4 is formed with a convex ring 11 capable of abutting against the surface of the gasket 4, and the outer diameter of the convex ring 11 is smaller than the outer diameter of the gasket 4, so as to reduce the contact area between the rotating ring 1 and the gasket 4, thereby reducing the friction, improving the efficiency of force transmission, and facilitating force application.

[0025] Exemplarily, the clamping part 32 is composed of a plurality of clamping claws, the plurality of clamping claws are uniformly arranged along the circumferential direction of the locking sleeve 3, and the first slope surface 33 is arranged at the outer periphery of the clamping claws. Such design can ensure that the clamping force is uniformly distributed around the clamping part 32, so that effective interaction force is generated between the clamping part 32 and the expansion sleeve 2, local stress concentration is avoided, and the stability and reliability of clamping are improved.

[0026] Exemplarily, the expansion sleeve 2 is provided with a radially protruding annular limiting part 23 at one end close to the rotating ring 1, and the annular limiting part 23 can abut against the end face of the dry film drum 6 during assembly, so as to prevent the whole device from being embedded into the dry film drum 6.

[0027] Exemplarily, the outer periphery of the rotating ring 1 is uniformly provided with a plurality of anti-skid concave surfaces 12, so as to facilitate manual force application.

[0028] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to the embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including all the preferred embodiments and all the changes and modifications falling within the scope of the present application.

[0029] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A portable and detachable dry film locking device, characterized in that, The utility model relates to a locking sleeve, expansion sleeve and rotating ring, the locking sleeve is provided with external thread part on one side, the other side is provided with the clamping part, the outer periphery of clamping part is equipped with first slope face, the expansion sleeve is sleeved on the locking sleeve, the inner periphery of expansion sleeve is equipped with second slope face can slide with first slope face contact, expansion sleeve is equipped with the slot that can adapt expansion sleeve expansion, rotating ring is connected with external thread part thread, rotating ring is pushed to the expansion sleeve one side of clamping part removes in the process of screwing into locking sleeve, first slope face and second slope face between make the relative sliding, make the inner diameter of clamping part gradually reduce, simultaneously make the outer diameter of expansion sleeve gradually increase.

2. A portable dry film locking device according to claim 1, wherein: A gasket is arranged between the rotating ring and the expansion sleeve.

3. A portable dry film locking device according to claim 2, wherein: An end surface of the rotating ring towards the gasket is formed with a convex ring capable of abutting against a surface of the gasket.

4. The portable dry film locking device of claim 3, wherein: An outer diameter of the convex ring is smaller than an outer diameter of the gasket.

5. The portable dry film locking device of claim 1, wherein: The clamping part is composed of a plurality of clamping claws, and the plurality of clamping claws are uniformly arranged along a circumferential direction of the locking sleeve.

6. The portable dry film locking device of claim 1, wherein: An end of the expansion sleeve close to the rotating ring is provided with a radially protruding annular limiting portion.

7. The portable dry film locking device of claim 1, wherein: An outer periphery of the rotating ring is uniformly provided with a plurality of anti-skid concave surfaces.

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