Special-shaped prism non-absorption tooling

Abstract

The utility model provides a kind of special prism non-absorption type tool, including split fixture one and split fixture two.Split fixture one is the cuboid with several recesses, its both ends are equipped with positioning hole, recess is used to carry the first structure surface of special prism;Split fixture two is the cuboid with several protrusions, its both ends are equipped with positioning column, the protrusion is matched with recess on split fixture one, for special prism limit position.Split fixture one and split fixture two are spliced to form the space for placing special prism, the structure of space is matched with the non-ink surface of special prism, to carry out limit position to special prism by tool body.Positioning hole and positioning column cooperate to fix split fixture one and split fixture two.The utility model is combined by structure limit position and dead weight, realizes the stable positioning of special prism, avoids adsorption failure problem;Meanwhile, split type combination design is used, supports multi-surface silk printing, improves production efficiency and process stability.

Description

Technical Field

[0001] This utility model belongs to the field of optical prism ink coating, specifically relating to a non-adsorption tooling for irregularly shaped prisms, suitable for screen printing ink coating process of V-shaped structural prisms. Background Technology

[0002] In the manufacturing process of optical prisms, multiple surfaces often need to be coated with ink to achieve functions such as light blocking, anti-reflection, or aesthetics. Existing technologies mainly employ the following methods: semi-automatic screen printing with product film application, requiring manual positioning of the film, resulting in low automation and potential damage to the product surface during the application process, thus limiting production efficiency; single-piece screen printing using robotic arms, capable of printing only the sidewalls of a single product at a time, unable to achieve batch processing, resulting in low output per unit time and difficulty meeting the needs of large-scale production; whole-plate printing using suction-type screen printing fixtures, relying on the effective suction area of ​​the product surface for positioning, but for irregularly shaped prisms with small effective suction area or special structures that cannot be suctioned, positioning stability is poor, and misalignment easily occurs, leading to insufficient ink coating accuracy; and ink-dipping processes with dedicated fixtures have poor fixture versatility, requiring a dedicated fixture for each type of irregularly shaped prism, necessitating redesign and manufacturing of fixtures when changing products, increasing production costs and extending production preparation time.

[0003] The existing processes mentioned above cannot effectively solve the problem of efficient and stable ink coating for irregularly shaped prisms, especially those with small effective adsorption and positioning areas or those that cannot be adsorbed and positioned. Therefore, a new tooling solution is urgently needed to fill this technological gap. Utility Model Content

[0004] The purpose of this invention is to provide a non-adsorption tooling for irregularly shaped prisms, which solves the problems of difficult positioning, unstable adsorption, and low efficiency in the ink coating process of irregularly shaped prisms in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A non-adhesive fixture for irregularly shaped prisms, comprising: The first split fixture is a cuboid with several grooves and positioning holes at both ends. The grooves are used to support the first structural surface of the irregular prism. The second split fixture is a cuboid with several protrusions and positioning posts at both ends. The protrusions are adapted to the grooves on the first split fixture to limit the position of the irregular prism. The two separate fixtures are joined together to form a space for placing the irregular prism. The structure of the space is adapted to the unpainted surface of the irregular prism so that the irregular prism can be limited by the fixture body.

[0006] Furthermore, the protruding end face of the second split fixture is an inwardly inclined slope.

[0007] The positioning holes and positioning pins work together to fix the first and second separate fixtures.

[0008] The tooling is suitable for multi-faceted screen printing and ink coating processes on V-shaped structural prisms.

[0009] Compared with the prior art, the beneficial effects of this utility model are: (1) Solving the positioning problem: It does not rely on adsorption positioning. By combining the product's own weight with the tooling body's limiting method, it effectively solves the positioning problem of irregular prisms with small effective adsorption positioning area or those that cannot be adsorbed and positioned, and the positioning stability is significantly improved. (2) Improving processing efficiency: It adopts a split-type combination structure to achieve the purpose of screen printing on four sides in one go. Compared with the traditional single screen printing or semi-automatic screen printing method, it greatly reduces the number of times the plate is placed and the operation time, and the ink coating processing efficiency is significantly improved. (3) Ensuring process stability: The tooling design avoids contact with the effective ink coating area, avoiding ink coating defects caused by tooling contact. At the same time, the unified positioning standard reduces the deviation in the operation process and ensures the stability and consistency of the ink coating process. (4) Enhancing versatility: The limiting size and splicing method of the split fixture can be adjusted according to the structure of different models of irregular prisms. It does not require designing a complete set of fixtures for each model, which reduces production costs and improves the applicability of the tooling.

[0010] This invention achieves stable positioning of irregularly shaped prisms by combining structural limiting and self-weight, avoiding adsorption failure problems; at the same time, it adopts a split assembly design, supports multi-sided screen printing, improves production efficiency and process stability, and is suitable for automated production lines. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the split fixture described in this utility model; Figure 2 This is a schematic diagram of the structure of the split fixture II described in this utility model; Figure 3 This is a schematic diagram showing the positioning of the irregularly shaped prism in the tooling. Detailed Implementation

[0012] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments.

[0013] See Figure 1-3 A non-adsorption fixture for irregularly shaped prisms, comprising: The split fixture 10 is a cuboid with several grooves and positioning holes 11 at both ends. The grooves are used to support the first structural surface of the irregular prism. The second split fixture 20 is a cuboid with several protrusions and positioning posts 21 at both ends. The protrusions are adapted to the grooves on the first split fixture and are used to limit the position of the irregular prism 30. The two separate fixtures are joined together to form a space for placing the irregular prism. The structure of the space is adapted to the unpainted surface of the irregular prism so that the irregular prism can be limited by the fixture body.

[0014] See Figure 2 The protruding end face of the second split fixture is an inwardly inclined slope 22.

[0015] See Figure 3 The positioning holes and positioning pins work together to fix the first and second separate fixtures.

[0016] The tooling is suitable for multi-faceted screen printing and ink coating processes on V-shaped structural prisms.

Claims

1. A non-adsorption fixture for an irregularly shaped prism, characterized in that, include: The first split fixture is a cuboid with several grooves and positioning holes at both ends. The grooves are used to support the first structural surface of the irregular prism. The second split fixture is a cuboid with several protrusions and positioning posts at both ends. The protrusions are adapted to the grooves on the first split fixture to limit the position of the irregular prism. The two separate fixtures are joined together to form a space for placing the irregular prism. The structure of the space is adapted to the unpainted surface of the irregular prism so that the irregular prism can be limited by the fixture body.

2. The non-adsorption fixture for an irregularly shaped prism according to claim 1, characterized in that, The protruding end face of the two split fixtures is an inwardly inclined slope.

3. The non-adsorption fixture for an irregularly shaped prism according to claim 1, characterized in that, The positioning holes and positioning pins work together to fix the first and second separate fixtures.

4. The non-adsorption fixture for an irregularly shaped prism according to claim 1, characterized in that, The tooling is suitable for multi-faceted screen printing and ink coating processes on V-shaped structural prisms.

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