Adjustable silk screen adsorption clamping mechanism

Abstract

The invention relates to an adjustable silk screen adsorption clamping mechanism which comprises a right side end disc and a left side end disc. A plurality of supporting assemblies are evenly distributed on the portion, between the right side end disc and the left side end disc, of the center transmission shaft in the left-right direction, the left side of the center transmission shaft, the left side end disc and the supporting assemblies are installed together, and a hand wheel is installed on the right side of the center transmission shaft. The hand wheel can move on the center transmission shaft in the left-right direction. A silk screen inner supporting type structure is adopted, and an excellent supporting effect can be achieved in a workpiece, especially in a to-be-machined area.

Description

Technical Field

[0001] The invention relates to the technical field related to screen roller processing, and in particular to an adjustable screen adsorption and clamping mechanism. Background Art

[0002] The screen roller is a thin workpiece with a thickness of only tens of microns. Patterns need to be engraved on the surface for use in subsequent processes. Due to its poor rigidity, it is very easy to deform, and it needs to rotate during processing, making it challenging to keep the processing surface always in the same plane. Due to the rigidity of the material itself, there are only small diameter and short length workpieces on the market, so there is a need to further expand the diversity of products.

[0003] At present, the wire mesh is clamped by left and right end plates, one side is active and the other side is passive. Since the transmission of power depends on the rigidity of the wire mesh itself, the poor performance leads to a certain angle deviation between the left and right end plates, which causes the wire mesh to be twisted around the axis, and the degree of twisting is related to the clamping force on both sides. Simply using the method of sticking tape on both sides can only reduce the twisting, but cannot completely eliminate it.

[0004] In view of the above-mentioned defects, the designer actively carried out research and innovation in order to create an adjustable screen adsorption clamping mechanism to make it more valuable for industrial use. Summary of the invention

[0005] In order to solve any of the above technical problems, the purpose of the present invention is to provide an adjustable screen adsorption and clamping mechanism.

[0006] To achieve the above object, the present invention adopts the following technical solution:

[0007] An adjustable screen adsorption and clamping mechanism, including a right-side end plate and a left-side end plate;

[0008] It also includes a central transmission shaft, on which a plurality of support assemblies are evenly distributed along the left and right directions between the right end plate and the left end plate, the left side of the central transmission shaft is installed together with the left end plate and the plurality of support assemblies, and a hand wheel is installed on the right side of the central transmission shaft, and the hand wheel can move along the left and right directions on the central transmission shaft;

[0009] The support assembly includes a center frame, a support block structure and a wedge block. The center frame is sleeved on the center transmission shaft. A center groove for installing the wedge block is opened on the inner side of the right side of the center frame. A plurality of support movable grooves are evenly opened along the circumferential direction on the outer side of the center frame. The support block structure includes a support movable block and a support clamping piece of an arc structure located on the outer side of the support movable block. The support movable block is movably installed in the support movable groove.

[0010] A plurality of shaft slide grooves are evenly opened along the circumferential direction on the central transmission shaft, a slide plate movable along the left and right directions is installed in the shaft slide groove, and a pressure block is installed on the slide plate at the front end of the wedge block.

[0011] As a further improvement of the present invention, the left side of the central transmission shaft is mounted together with the left end plate and a plurality of supporting components via a shaft locking block.

[0012] As a further improvement of the present invention, an external thread is provided at the shaft end of the central transmission shaft, and an internal thread matching the external thread is provided inside the hand wheel.

[0013] As a further improvement of the present invention, a spring structure is installed between the supporting movable block and the supporting movable groove.

[0014] As a further improvement of the present invention, a plurality of vacuum adsorption grooves connected to external negative pressure equipment are arranged on the supporting clamping sheet.

[0015] As a further improvement of the present invention, the supporting clamping sheet is a spring sheet structure.

[0016] As a further improvement of the present invention, the bracket on the left side of the right center frame is connected to the right side of the left center frame or the right side support of the left end plate.

[0017] By means of the above scheme, the present invention has at least the following advantages:

[0018] The present invention adopts a wire mesh inner support structure, which can play an excellent supporting role inside the workpiece, especially in the area to be processed.

[0019] The invention is assisted by negative pressure adsorption to ensure that the workpiece and the inner support have no relative displacement.

[0020] The inner support structure of the present invention is designed to be retractable and expandable, which can facilitate loading and unloading of materials and can also fine-tune the tension of the workpiece.

[0021] The core of the present invention is a through-type transmission shaft, which can transmit torque from the active end on one side to the driven end on the other side without deviation, thereby improving the processing accuracy and reliability.

[0022] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0024] Figure 1 It is a structural schematic diagram of an adjustable screen adsorption clamping mechanism of the present invention;

[0025] Figure 2 yes Figure 1 A schematic diagram of the structure of the middle support assembly;

[0026] Figure 3 yes Figure 2 Schematic diagram of the structure after removing the wedge;

[0027] Figure 4 yes Figure 3 Schematic diagram of the structure after removing one of the support block structures;

[0028] Figure 5 yes Figure 3 Schematic diagram of the structure after the support block structure;

[0029] Figure 6 yes Figure 1 Schematic diagram of the structure at the center drive shaft, handwheel, wedge block and slide plate.

[0030] The meanings of the various reference numerals in the figures are as follows.

[0031] Central transmission shaft 1, hand wheel 2, right end plate 3, support assembly 4, left end plate 5, center frame 6, support block structure 7, wedge block 8, slide plate 9, pressure block 10;

[0032] Axis locking block 11, shaft slide groove 12;

[0033] Central groove 61, supporting movable groove 62;

[0034] The supporting movable block 71 and the supporting clamping piece 72 are provided. DETAILED DESCRIPTION

[0035] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0036] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiment of the present invention. Obviously, the described embodiment is only a part of the embodiment of the present invention, rather than all the embodiments. The components of the embodiment of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiment of the present invention provided in the drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiment of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0037] like Figure 1 to Figure 6 As shown, an adjustable screen adsorption clamping mechanism includes a right end plate 3 and a left end plate 5; and also includes a central transmission shaft 1, on which a plurality of support components 4 are evenly distributed along the left and right directions between the right end plate 3 and the left end plate 5, the left side of the central transmission shaft 1 is installed together with the left end plate 5 and the plurality of support components 4, and a hand wheel 2 is installed on the right side of the central transmission shaft 1, and the hand wheel 2 can move along the left and right directions on the central transmission shaft 1;

[0038] The support assembly 4 includes a center frame 6, a support block structure 7 and a wedge block 8. The center frame 6 is sleeved on the center transmission shaft 1. A center groove 61 for installing the wedge block 8 is opened on the inner side of the right side of the center frame 6. A plurality of support movable grooves 62 are evenly opened along the circumferential direction on the outer side of the center frame 6. The support block structure 7 includes a support movable block 71 and a support clamping piece 72 of an arc structure located on the outer side of the support movable block 71. The support movable block 71 is movably installed in the support movable groove 62.

[0039] A plurality of shaft slots 12 are evenly provided along the circumferential direction on the central transmission shaft 1 , a slide plate 9 movable along the left and right directions is installed in the shaft slot 12 , and a pressure block 10 is installed on the slide plate 9 at the front end of the wedge block 8 .

[0040] Preferably, the left side of the central transmission shaft 1 is mounted together with the left end plate 5 and a plurality of support assemblies 4 via a shaft locking block 11 .

[0041] Preferably, an external thread is provided at the shaft end of the central transmission shaft 1, and an internal thread matching the external thread is provided inside the hand wheel 2.

[0042] Preferably, a spring structure is installed between the supporting movable block 71 and the supporting movable groove 62 .

[0043] Preferably, a plurality of vacuum adsorption grooves connected to an external negative pressure device are provided on the supporting clamping sheet 72 .

[0044] Preferably, the supporting clamping piece 72 is a spring sheet structure.

[0045] Preferably, the bracket on the left side of the right center frame 6 is connected to the right side of the left center frame 6 or the right side support of the left end plate 5 .

[0046] The present invention is used for an adjustable screen roller adsorption clamping mechanism, the structure of which is as follows Figure 1 As shown, it is mainly composed of the following components: central transmission shaft 1; hand wheel 2; right end plate 3; support assembly 4; left end plate 5.

[0047] Multiple support components 4 are installed on the central transmission shaft 1, and the diameter of the support is adjusted by the hand wheel 2 on the right side, which plays a role in radial support of the workpiece. The left end plate 5 and the right end plate 3 are used for axial positioning of the workpiece to ensure the position stability after repeated clamping.

[0048] The principle of the support assembly 4 is as follows Figure 2 to Figure 5 As shown, the core component is the center frame 6, and three independent support block structures 7 are installed in the support movable groove 62 of the center frame 6. The bottom surface is supported by the internal wedge block 8, and a spring structure is used to provide a clamping force for both. Principle: Keep the center frame 6 stationary and push the wedge block 8 to make the support block structure 7 contract or expand. Multiple support components can be connected via the center frame 6 for axial expansion to accommodate products of different lengths. The support block structure 7 is designed with a vacuum adsorption groove, which can be introduced with negative pressure to enhance the holding force on the product; according to actual needs, polygonal expansion modules can also be locked on the arc-shaped support surface to achieve the purpose of flattening the processing area.

[0049] The transmission working principle at the center transmission shaft 1 is as follows Figure 6 As shown, the core part is the central transmission shaft 1, which is the supporting part of the whole mechanism and has excellent dimensional stability and rigidity. Three slide plates 9 are installed in the shaft slot 12 on the central transmission shaft 1 and can move left and right; the pressing block 10 on the slide plate 9 is connected with the wedge block 8 of multiple supporting components 4, and finally makes them synchronously telescope or expand. The hand wheel 2 is the driving unit of the whole system and is connected to the slide plate 9. The shaft end of the central transmission shaft is tapped with an external thread, and the hand wheel 2 is tapped with an internal thread. Rotating the hand wheel 2 can make it move in the axial direction.

[0050] The working principle and working process of the present invention are as follows: the worker first rotates the right hand wheel 2 to shrink the support assembly 4 to the minimum diameter, and then inserts the workpiece and puts it close to the left end plate 5. While ensuring that the workpiece is axially immobile, the right hand wheel 2 is rotated to expand the support assembly 4 to a predetermined position, and finally the right end plate 3 is installed to fix the right end of the workpiece. After the workpiece is installed, the entire structure is correctly hoisted onto the processing equipment, and the air pipe is connected to start formal processing.

[0051] The use of a through-type transmission shaft and a retractable and expandable internal support structure not only ensures the position accuracy of the workpiece during the processing, but also facilitates loading and unloading, improving the convenience of human-machine interaction.

[0052] The present invention adopts a wire mesh inner support structure, which can play an excellent supporting role inside the workpiece, especially in the area to be processed. Assisted by negative pressure adsorption, it is ensured that there is no relative displacement between the workpiece and the inner support. The inner support structure is designed to be retractable and expandable, which can facilitate loading and unloading, and can also fine-tune the tension of the workpiece. The center is a through-type transmission shaft, which can transmit torque from the active end on one side to the driven end on the other side without deviation, thereby improving the processing accuracy and reliability.

[0053] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. An adjustable screen adsorption and clamping mechanism, comprising a right end plate (3) and a left end plate (5); characterized in that: It also comprises a central transmission shaft (1), a plurality of support assemblies (4) are evenly distributed along the left-right direction on the central transmission shaft (1) between the right end plate (3) and the left end plate (5), the left side of the central transmission shaft (1) is installed together with the left end plate (5) and the plurality of support assemblies (4), and a hand wheel (2) is installed on the right side of the central transmission shaft (1), and the hand wheel (2) can move along the left-right direction on the central transmission shaft (1); The support assembly (4) comprises a center frame (6), a support block structure (7) and a wedge block (8); the center frame (6) is sleeved on the center transmission shaft (1); a center groove (61) for installing the wedge block (8) is provided on the inner side of the right side of the center frame (6); a plurality of support movable grooves (62) are evenly provided along the circumferential direction on the outer side of the center frame (6); the support block structure (7) comprises a support movable block (71) and a support clamping piece (72) of an arc-shaped structure located on the outer side of the support movable block (71); the support movable block (71) is movably installed in the support movable groove (62); A plurality of shaft slide grooves (12) are evenly arranged along the circumferential direction on the central transmission shaft (1), a slide plate (9) movable along the left and right directions is installed in the shaft slide groove (12), and a pressure block (10) is installed on the slide plate (9) at the front end of the wedge block (8).

2. The adjustable screen adsorption and clamping mechanism according to claim 1, characterized in that: The left side of the central transmission shaft (1) is mounted together with the left end plate (5) and a plurality of support components (4) via a shaft locking block (11).

3. The adjustable screen adsorption and clamping mechanism according to claim 1, characterized in that: An external thread is provided at the shaft end of the central transmission shaft (1), and an internal thread matching the external thread is provided inside the hand wheel (2).

4. The adjustable screen adsorption and clamping mechanism according to claim 1, characterized in that: A spring structure is installed between the supporting movable block (71) and the supporting movable groove (62).

5. The adjustable screen adsorption and clamping mechanism according to claim 1, characterized in that: A plurality of vacuum adsorption grooves connected to external negative pressure equipment are arranged on the supporting clamping sheet (72).

6. The adjustable screen adsorption and clamping mechanism according to claim 1, characterized in that: The supporting clamping sheet (72) is a spring sheet structure.

7. The adjustable screen adsorption and clamping mechanism according to claim 1, characterized in that: The bracket on the left side of the right central frame (6) is connected to the right side support of the right side or left side end plate (5) of the left central frame (6).

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