Coating material evaporation device

Abstract

The utility model belongs to the technical field of vacuum coating, and relates to a coating material evaporation device which comprises an evaporation pipe with two open ends, a sealing cover arranged at one end of the evaporation pipe through a hinge and a heating piece arranged in the sealing cover, and the other end of the evaporation pipe is communicated with a coating cavity. A fastening mechanism is connected between the sealing cover and the evaporation pipe, the fastening mechanism comprises two movable blocks which are slidably connected to the end face of the sealing cover through sliding rails, the movable blocks are connected with a driving mechanism used for driving the movable blocks to slide along the sliding rails, the peripheral face of the evaporation pipe is connected with a carrier roller through two L-shaped connecting rods, and the carrier roller is connected with the sealing cover. One end of the movable block penetrates through the space between the two connecting rods and the carrier roller and abuts against the circumferential face of the carrier roller, the face, abutting against the carrier roller, of the movable block is an inclined face, and when the movable block is pushed in, the carrier roller reacts on the movable block, so that the sealing cover is tightly pressed on the evaporation pipe, and therefore the evaporation pipe is sealed. And the fastening effect is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of vacuum coating equipment, and particularly relates to a coating material evaporation device. Background Art

[0002] Parylene C or parylene N is poly-p-xylene, which is a new type of thermoplastic used to make extremely thin films or deposited coatings. Poly-p-xylene has good gas and water vapor barrier properties, physical and mechanical properties, electrical insulation properties, and corrosion resistance, and has a wide range of applications in fields such as silicone rubber, magnetic materials, circuit boards, medical devices, books and paintings, historical relics, LED lights, and sensors. The traditional vaporization device for compact vacuum coating has the following disadvantages: there are problems of raw material leakage, it is difficult to control the coating temperature, the heating is uneven, which affects the vaporization of raw materials. Based on the above defects and deficiencies, it is necessary to improve the existing technology.

[0003] Patent No. CN201920481417.2 discloses a vaporization device for compact vacuum coating. The vaporization device for compact vacuum coating includes a tube furnace chassis, an evaporation furnace box, an evaporation tube, heating sheets, a junction box, a sealing structure, and a connecting flange. The tube furnace chassis is arranged in the middle of the frame. An evaporation furnace box is installed on the tube furnace chassis. An evaporation tube is horizontally inserted into the evaporation furnace box. Heating sheets are arranged at intervals on the evaporation tube. The heating sheets are connected to the junction box through wires. The junction box is arranged at the rear of the evaporation furnace box. The two sides of the evaporation tube are respectively a feed port and a discharge port. A sealing structure is installed at the feed port of the evaporation tube, and a connecting flange is installed at the discharge port of the evaporation tube. By the above method, the utility model has a simple structure, is convenient for feeding, can vaporize thermoplastic plastics, and avoids raw material leakage. The fastening assembly 265 includes a double-ear seat 2651, a fastening plate 2652, a connecting rod 2653, a connecting pipe 2654, a horizontal rod 2655, and a knob 2657. The double-ear seat 2651 is fixed to the front of the evaporation tube flange 261, and the fastening plate 2652 is fixed to the front of the flange rear cover 263. A connecting rod 2653 is inserted into the double-ear seat 2651. A connecting pipe 2654 is sleeved on the connecting rod 2653. A horizontal rod 2655 is fixedly installed in the middle of the connecting pipe 2654. External threads are provided on the horizontal rod 2655. A knob 2657 is sleeved on the horizontal rod 2655. Two protruding rotating arms are provided on the knob 2657. A fastening opening 26520 opposite to the horizontal rod 2655 is provided on the fastening plate 2652. Manually rotate the horizontal rod 2655. When the horizontal rod 2655 rotates to the fastening opening 26520, rotate the knob 2657, and the rotating arm of the knob 2657 abuts against the fastening plate 2652 to achieve the fastening effect. Manual fastening is time-consuming and laborious, and the tightness cannot be controlled. The threads are prone to slipping after long-term use, affecting the fastening effect. Therefore, the utility model proposes a coating material evaporation device. Summary of the Invention

[0004] The main object of the present utility model is to provide a coating material evaporation device, which can realize the automatic fastening of the sealing cover and ensure the fastening effect.

[0005] The present utility model realizes the above object through the following technical solutions: A coating material evaporation device includes an evaporation tube with openings at both ends, a sealing cover provided at one end of the evaporation tube through a hinge, and a heating sheet built into the sealing cover. The other end of the evaporation tube is connected to a coating chamber. A fastening mechanism is connected between the sealing cover and the evaporation tube. The fastening mechanism includes two movable blocks slidably connected to the end face of the sealing cover through a slide rail. The movable block is connected to a driving mechanism for driving it to slide along the slide rail. The peripheral surface of the evaporation tube is connected with a roller through two L-shaped connecting rods. One end of the movable block passes between the two connecting rods and the roller and abuts against the peripheral surface of the roller. The surface of the movable block abutting against the roller is set as an inclined surface.

[0006] Preferably, the driving mechanism includes a servo cylinder. An L-shaped plate is provided on the end face of the sealing cover. The servo cylinder is fixed on the L-shaped plate. The ejector rod of the servo cylinder is connected to the movable block. Extension blocks and avoidance grooves are respectively provided at the opposite ends of the two movable blocks. The extension block extends into the avoidance groove. A gear is rotatably provided on the end face of the sealing cover. The gear is located in the gap between the extension block and the avoidance groove. Rack teeth meshing with the gear are provided on the faces of the extension block and the avoidance groove facing the gear.

[0007] Preferably, a connecting pipe is provided at the end of the evaporation tube away from the sealing cover, and a connecting flange is provided at one end of the connecting pipe.

[0008] Preferably, it further includes a box body. The evaporation tube is horizontally inserted into the box body, and the box body is connected with a flip-up upper cover.

[0009] The beneficial effect of the technical solution of the present utility model is that the driving mechanism drives the movable block to extend towards the inner side of the roller. The roller plays a limiting role on the movable block, so that the sealing cover is fixed to the evaporation tube. The surface of the movable block abutting against the roller is set as an inclined surface. When the movable block is pushed, the roller reacts on the movable block, thereby pressing the sealing cover against the evaporation tube to ensure the fastening effect. Brief Description of the Drawings

[0010] Figure 1 It is the layout diagram of the coating material evaporation device in the working state of the embodiment.

[0011] Figure 2 It is the structural schematic diagram of the movable block.

[0012] The numbers in the figure indicate:

[0013] 1. Evaporation tube; 2. Sealing cover; 3. Movable block; 4. Idler roller; 5. Connecting rod; 6. Inclined surface; 7. Servo cylinder; 8. L-shaped plate; 9. Extension block; 10. Avoidance groove; 11. Gear; 12. Rack; 13. Connecting pipe; 14. Flange. Specific embodiments

[0014] The present utility model will be further described in detail below with reference to specific embodiments.

[0015] Embodiment:

[0016] As Figure 1 and Figure 2 shown, a coating material evaporation device of the present utility model includes an evaporation tube 1 with openings at both ends, a sealing cover 2 provided at one end of the evaporation tube 1 through a hinge, and a heating sheet built into the sealing cover 2. The other end of the evaporation tube 1 is communicated with a coating cavity. A fastening mechanism is connected between the sealing cover 2 and the evaporation tube 1. The fastening mechanism includes two movable blocks 3 slidably connected to the end face of the sealing cover 2 through a slide rail. The movable block 3 is connected with a driving mechanism for driving it to slide along the slide rail. An idler roller 4 is connected to the circumferential surface of the evaporation tube 1 through two L-shaped connecting rods 5. One end of the movable block 3 passes through between the two connecting rods 5 and the idler roller 4 and abuts against the circumferential surface of the idler roller 4. The surface of the movable block 3 in contact with the idler roller 4 is set as an inclined surface 6. In the initial state, the sealing cover 2 is in an open state, and the movable block 3 is located within the circumference of the sealing cover 2. Raw materials are added into the evaporation tube 1, the sealing cover 2 is covered, and the two movable blocks 3 are driven to slide synchronously and reversely through the driving mechanism, so that the movable block 3 extends out of the circumference where the sealing cover 2 is located and extends to the inner side of the idler roller 4. The inclined surface 6 abuts against the circumference of the idler roller 4. The slider continues to slide, and the idler roller 4 reacts on the movable block 3, thereby pressing the sealing cover 2 tightly, so as to ensure the fastening effect. The heating sheet evaporates the raw materials in the evaporation tube 1 into gas and makes it pass into the coating cavity. After evaporation is completed, the servo cylinder 7 drives the movable block 3 to reset, so that the sealing cover 2 can be opened for re-feeding.

[0017] The driving mechanism includes a servo cylinder 7. An L-shaped plate 8 is provided on the end face of the sealing cover 2. The servo cylinder 7 is fixed on the L-shaped plate 8. The ejector rod of the servo cylinder 7 is connected to the movable block 3. Extension blocks 9 and avoidance grooves 10 are respectively provided at opposite ends of the two movable blocks 3. The extension block 9 extends into the avoidance groove 10. A gear 11 is rotatably provided on the end face of the sealing cover 2. The gear 11 is located in the gap between the extension block 9 and the avoidance groove 10. Rack teeth 12 meshing with the gear 11 are provided on the faces of the extension block 9 and the avoidance groove 10 facing the gear 11. The servo cylinder 7 pushes the movable block 3 to slide along the slide rail, and then drives the two movable blocks 3 to slide synchronously and in opposite directions through the gear 11 and the rack teeth 12.

[0018] One end of the evaporation pipe 1 away from the sealing cover 2 is provided with a connecting pipe 13. One end of the connecting pipe 13 is provided with a connecting flange 14.

[0019] It further includes a box body. The evaporation pipe 1 is horizontally inserted into the box body. The box body is connected with a flip-up upper cover.

[0020] The above are only some embodiments of the present invention. For those of ordinary skill in the art, without departing from the inventive concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A coating material evaporation device, comprising an evaporation tube with openings at both ends, a sealing cover hingedly arranged at one end of the evaporation tube, and a heating plate built into the sealing cover, wherein the other end of the evaporation tube is connected to a coating chamber, characterized in that: A fastening mechanism is connected between the sealing cover and the evaporation tube, and the fastening mechanism includes two movable blocks slidably connected to the end surface of the sealing cover via a slide rail, and the movable block is connected to a driving mechanism for driving it to slide along the slide rail. A roller is connected to the circumferential surface of the evaporation tube via two L-shaped connecting rods, one end of the movable block passes through between the two connecting rods and the roller, and abuts against the circumferential surface of the roller, and a side of the movable block abutting against the roller is set as an inclined surface.

2. The coating material evaporation device according to claim 1, characterized in that: The driving mechanism includes a servo cylinder, an L-shaped plate is provided on the end surface of the sealing cover, the servo cylinder is fixed on the L-shaped plate, the top rod of the servo cylinder is connected to the movable block, and the opposite ends of the two movable blocks are respectively provided with extension blocks and avoidance grooves, the extension blocks extend into the avoidance grooves, and a gear is rotatably provided on the end surface of the sealing cover, and the gear is located in the gap between the extension block and the avoidance groove, and the surfaces of the extension block and the avoidance groove facing the gear are provided with racks meshing with the gear.

3. The coating material evaporation device according to claim 1, characterized in that: A connecting pipe is provided at one end of the evaporating tube away from the sealing cover, and a connecting flange is provided at one end of the connecting pipe.

4. The coating material evaporation device according to claim 1, characterized in that: It also includes a box body, in which the evaporation tube is horizontally inserted, and the box body is connected with a flip-up upper cover.

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