Mechanical link shelter door mechanism for UV curing machines

Abstract

The utility model relates to a kind of mechanical connecting rod shielding door mechanism of UV curing machine.The existing UV curing machine does not take any measures to protect the eyes and exposed body skin of operator during product taking and replacing, which can cause damage to the operator's body.The utility model includes rack, opening and closing type protection door is arranged outside the rack, shielding door is arranged above the UV lamp of UV curing machine, the shielding door is connected with protection door by connecting rod mechanism, when the protection door is opened outward, the shielding door is driven to move by connecting rod mechanism to form barrier to lower UV lamp.The utility model realizes shielding UV light during protection door opening process and opening, eliminates the health damage of UV light to operator, also realizes that shielding mechanism opens with the action of protection door when closing, releases UV light to irradiate product.The overall structure is compact and small, without electricity, gas auxiliary, low failure rate, easy to maintain.

Description

Technical Field

[0001] This utility model relates to a mechanical linkage shielding door mechanism for a UV curing machine. Background Technology

[0002] The medical catheter surface hydrophilic UV curing machine uses a UV mercury lamp to irradiate the product and cure the hydrophilic coating on the catheter surface. Because UV light has a strong stimulating effect on the human eye, and because of its short wavelength, high frequency, and high energy, it has strong penetrating power in the retinal area of ​​the eye. Prolonged exposure can cause macular degeneration of the retina.

[0003] Existing UV curing machines do not employ any measures to shield operators' eyes and exposed skin from UV rays during product handling, potentially causing injury. Therefore, there is an urgent need to design a light-shielding mechanism to protect the health and safety of operators. Summary of the Invention

[0004] To address the problems existing in the prior art, this utility model provides a mechanical linkage shielding door mechanism for a UV curing machine, which can block UV light when the protective door is open, thereby protecting the operator from UV exposure.

[0005] Therefore, the technical solution adopted by this utility model is: a mechanical linkage shielding door mechanism for a UV curing machine, including a frame, and an openable protective door is provided on the outside of the frame. The shielding door is provided above the UV lamp of the UV curing machine, and the shielding door and the protective door are connected by a linkage mechanism. When the protective door is opened outward, the linkage mechanism drives the shielding door to move so as to block the UV lamp below.

[0006] Preferably, the bottom of the frame is provided with a base plate, the center of the base plate is provided with a through hole, the base plate is provided with a horizontal slide rail, and the shielding door is two in number and symmetrically installed on the slide rail. The linkage mechanism drives the shielding door to move towards or away from each other along the slide rail.

[0007] Preferably, the linkage mechanism includes a first connecting rod disposed on the shielding door, the outer side of the first connecting rod being positioned on the fixed end of the frame, and a connecting rod connected to the first connecting rod near the fixed end via a roller component, the outer side of the connecting rod being connected to the main body of the protective door.

[0008] Preferably, the first connecting rod and the main body on the first connecting rod are provided with elongated slots.

[0009] Preferably, positioning rollers are symmetrically arranged on the two shielding doors.

[0010] Preferably, the shielding door is also provided with a handle.

[0011] The beneficial effects of this invention are as follows: it effectively blocks UV light during and after the protective door is opened, eliminating the health hazards of UV light to operators; it also allows the blocking mechanism to open automatically when the protective door is closed, releasing UV light to irradiate the product. The device adopts a purely mechanical linkage structure, allowing the operator to drive the blocking mechanism to block (release) UV light when opening and closing the protective door. The overall structure is compact and small, requires no electric or pneumatic assistance, has a low failure rate, and is easy to maintain. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0013] Figure 2 This is a top view of the present invention.

[0014] Figure 3 This is a schematic diagram of a partial three-dimensional structure.

[0015] Figure 4 This is a schematic diagram of the motion process of this utility model.

[0016] In the attached diagram: 1. Frame 2. First connecting rod 3. Protective door 4. Connecting rod 5. Slide rail 6. Base plate 7. Long strip groove 8. Roller component 9. Positioning roller 10. Shielding door. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] like Figures 1-3 The illustrated UV curing machine's mechanical linkage shielding door mechanism includes a frame 1, an openable protective door 3 on the outside of the frame 1, and a shielding door 10 above the UV lamps of the UV curing machine. The shielding door 10 and the protective door 3 are connected by a linkage mechanism. When the protective door 3 opens outward, the linkage mechanism drives the shielding door 10 to move, blocking the UV lamps below. After the protective door is opened, the linkage mechanism drives the shielding door to retract inward, blocking the UV lamps below and providing protection.

[0019] In one embodiment, a base plate 6 is provided at the bottom of the frame, with a through hole in the center of the base plate 6. A horizontal slide rail 5 is provided on the base plate, and two shielding doors 10 are symmetrically installed on the slide rail 5. A linkage mechanism drives the shielding doors 10 to move towards or away from each other along the slide rail 5. The shielding doors are directly installed on the slide rail and move along a predetermined track. When moving inward, they close to block the central through hole and thus obstruct the UV lamp.

[0020] Specifically, the linkage mechanism includes a first connecting rod 2 installed on the shielding door. The outer side of the first connecting rod 2 is positioned on the fixed end of the frame 1. A connecting rod 4 is connected to the first connecting rod 2 near the fixed end via a roller component 8. The outer side of the connecting rod 4 is connected to the main body of the protective door.

[0021] Specifically, a long, narrow slot 7 is opened on the first connecting rod and the main body on the first connecting rod.

[0022] Specifically, positioning rollers 9 are symmetrically arranged on the two shielding doors, and the positioning rollers 9 are inserted into the long strip-shaped slots 7 of the first connecting rod 2.

[0023] Specifically, the shielding door 10 is also equipped with a handle. If the connecting mechanism malfunctions, the shielding door can be opened and closed by using the handle.

[0024] like Figure 4 The diagram shows the motion analysis of the linkage mechanism of this utility model:

[0025] I. Action Analysis:

[0026] 1. Protective door 3 is the driving element (ω) = 1, and the rest are driven elements.

[0027] 2. The protective door 3 drives the driven components to move along their respective predetermined paths.

[0028] 3. The components at points F and F' form multiple sliding pairs parallel to the guide direction, creating virtual constraints; therefore, they are only counted as one kinematic pair.

[0029] 4. At point C, the roller component only performs work when it makes surface contact with the connecting rod at both ends of the connecting rod groove. From C' to C”, the connecting rod itself moves without any substantial work being done with other components. Therefore, the roller and the connecting rod form a lower pair motion.

[0030] 5. Based on the above analysis and the simplified kinematic diagram, we know that: the number of moving components is n = 4; points A, B, C, D, and F are lower pairs P. L =5, point E is the higher pair P H =1.

[0031] II. Solving for the degrees of freedom:

[0032] F = 3n - 2P L -P H =3×4-2×5-1=1

[0033] III. Conclusion:

[0034] ω=F=1>0, the mechanism has a definite motion capability.

[0035] This invention effectively blocks UV light during and after the protective door is opened, eliminating the health hazards of UV light to operators. It also allows the blocking mechanism to open automatically when the protective door is closed, releasing UV light to irradiate the product. The device employs a purely mechanical linkage structure, allowing the operator to drive the blocking mechanism to block (release) UV light simply by opening and closing the protective door. The overall structure is compact and small, requires no electrical or pneumatic assistance, has a low failure rate, and is easy to maintain.

[0036] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the invention, and these equivalent forms also fall within the scope defined by the appended claims.

Claims

1. A mechanical linkage shielding door mechanism for a UV curing machine, comprising a frame (1), wherein an openable protective door (3) is provided on the outside of the frame (1), characterized in that... A shielding door (10) is provided above the UV lamp of the UV curing machine. The shielding door (10) is connected to the protective door (3) through a linkage mechanism. When the protective door (3) is opened outward, the linkage mechanism drives the shielding door (10) to move so as to block the UV lamp below.

2. The mechanical linkage shielding door mechanism of a UV curing machine according to claim 1, characterized in that... The bottom of the frame is provided with a base plate (6), the center of the base plate (6) is provided with a through hole, the base plate is provided with a horizontal slide rail (5), and the shielding door (10) is two and symmetrically installed on the slide rail (5). The linkage mechanism drives the shielding door (10) to move towards or away from each other along the slide rail (5).

3. The mechanical linkage shielding door mechanism of a UV curing machine according to claim 2, characterized in that... The linkage mechanism includes a first connecting rod (2) set on the shielding door. The outer side of the first connecting rod (2) is positioned on the fixed end of the frame (1). The first connecting rod (2) is connected to the connecting rod (4) near the fixed end by a roller component (8). The outer side of the connecting rod (4) is connected to the main body of the protective door.

4. The mechanical linkage shielding door mechanism of a UV curing machine according to claim 3, characterized in that... The first connecting rod and the main body on the first connecting rod have long strip-shaped slots (7).

5. The mechanical linkage shielding door mechanism of a UV curing machine according to claim 4, characterized in that... Positioning rollers (9) are symmetrically arranged on the two shielding doors, and the positioning rollers (9) are inserted into the long strip-shaped slot (7) of the first connecting rod (2).

6. The mechanical linkage shielding door mechanism of a UV curing machine according to claim 2, characterized in that... The shielding door (10) is also equipped with a handle.

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