CN107187194B

CN107187194B - UV curing device for printing of groove body

Info

Publication number: CN107187194B
Application number: CN201710497133.8A
Authority: CN
Inventors: 陈宏伟
Original assignee: Maanshan Yongxing Plastics Mould Co ltd
Current assignee: Maanshan Yongxing Plastics Mould Co ltd
Priority date: 2017-06-26
Filing date: 2017-06-26
Publication date: 2022-09-20
Anticipated expiration: 2037-06-26
Also published as: CN107187194A

Abstract

The invention discloses a UV curing device for slot body printing, and belongs to the technical field of UV curing. The invention discloses a UV curing device for slot body printing, which comprises a supporting mechanism, an illumination curing mechanism and a positioning feeding mechanism, wherein the supporting mechanism is used for supporting and sealing the illumination curing mechanism; a lamp tube bracket is arranged in the illumination curing mechanism, and the UV lamp tube is connected with the lamp tube bracket through a transverse connecting plate to enable the UV lamp tube to be transversely suspended; the positioning feeding mechanism is used for positioning and placing a workpiece with a groove, and the workpiece is sent into the closed space of the supporting mechanism through the driving cylinder body, so that the UV lamp tube extends into the groove. The invention adopts the suspended UV lamp tube to extend into the groove, so that the inner surface of the groove can be cured by illumination, the phenomenon of wrinkling of the inner surface of the groove is avoided, and the invention has better use effect.

Description

UV curing device for printing of groove body

Technical Field

The invention relates to the technical field of UV curing, in particular to a UV curing device for slot body printing.

Background

Ultraviolet light curing printers are commonly used in printing industry, after ink is coated on paper, the paper enters an ultraviolet lamp box to be irradiated, and the ink is rapidly dried and cured under the catalysis of ultraviolet rays. In order to improve the light curing efficiency of large-scale printing equipment, special ink is generally needed, and the manufacturing cost is high and high. However, the same effect cannot be achieved in a short time by using common ink, the irradiation amount of ultraviolet rays is increased, and the problem that the surface of a product is deformed and yellowed easily occurs.

When refrigerator handle processing is carried out, need to handle printing ink printing, then do not solidify through large-scale UV solidification, but because long banding recess has been seted up to handle one side, as shown in fig. 1, fig. 2, the inside printing face of recess is hardly solidified, wrinkle easily after the natural drying, seriously influence product quality, with this and wide, to other products that have the recess, also can have same problem when carrying out solidification processing, a UV curing equipment is difficult to realize holistic complete solidification, can only prolong curing time at certain workshop section, but lead to product surface colour change under this kind of condition again, become the industry difficult problem.

Chinese patent (CN 204566908U) discloses a UV curing device, including the support frame, the fixed cuboid storehouse that is equipped with on the support frame, the cuboid storehouse is equipped with UV illumination storehouse through the connecting rod preceding, the back wall in cuboid storehouse between be equipped with conveyer, conveyer includes master gear, trailing wheel, is equipped with a plurality of driving rollers in the front between chain and the back chain, is equipped with little pillar, big pillar along roller central symmetry on the driving roller upper surface, the inherent a plurality of fans of lower extreme of support frame, the inlet scoop of fan links to each other with the connecting pipe, includes interior storehouse, outer storehouse in UV illumination storehouse. According to the conveying device arranged in the scheme, the printed matters are positioned on the small support columns and the large support columns of the driving roller in the conveying process, so that the solidification of each corner of the printed matters is ensured, and the yield of the printed matters is improved; the ventilating device on the UV illumination bin can reduce the temperature in the UV illumination bin at any time and prevent the product from deforming or yellowing.

The scheme has a certain effect on temperature reduction, but cannot be used for processing the workpiece with the groove, a corresponding solution is not provided, and certain improvement needs to be made on the prior art in order to better realize processing of the workpiece with the groove.

Disclosure of Invention

1. Technical problem to be solved by the invention

The invention aims to overcome the defect that the inner surface of a groove of a workpiece is difficult to be cured by illumination in the prior art, and provides a UV curing device for groove body printing.

2. Technical scheme

In order to achieve the purpose, the technical scheme provided by the invention is as follows:

the invention relates to a UV curing device for slot body printing, which comprises

The supporting mechanism is used for supporting and sealing the illumination curing mechanism;

the light curing mechanism is internally provided with a lamp tube bracket, and the UV lamp tube is connected with the lamp tube bracket through a transverse connecting plate to enable the UV lamp tube to be transversely suspended;

and the positioning and feeding mechanism is used for positioning and placing the workpiece with the groove, and sending the workpiece into the closed space of the supporting mechanism through the driving cylinder body, so that the UV lamp tube extends into the groove.

As a further improvement of the invention, the lamp tube bracket is connected with a cooling water pipe, and the cooling water pipe is connected with a circulating water system.

As a further improvement of the invention, the lamp tube support or the transverse connecting plate is connected with a light shielding plate which is positioned at the upper side and/or the lower side of the UV lamp tube and used for limiting the illumination area of the UV lamp tube.

As a further improvement of the invention, the light shielding plate at least extends to the upper part or the lower part of the UV lamp tube, so that the light rays vertical to the moving direction of the workpiece are shielded.

As a further improvement of the invention, the tail end of the shading plate is embedded into a cooling water pipe to radiate heat of the shading plate.

As a further improvement of the invention, a water tank is arranged in the shading plate and is communicated with the cooling water pipe.

As a further improvement of the invention, the two ends of the UV lamp tube are sealed by the light guide element, and light can be diffused to the two ends of the UV lamp tube.

As a further improvement of the invention, the positioning feeding mechanism further comprises a positioning mounting plate and a positioning bottom plate, wherein the positioning bottom plate is connected with a piston rod of the driving cylinder body and is in sliding connection with a guide rail in the supporting mechanism; the positioning mounting plate is fixed on the positioning bottom plate and used for positioning and placing workpieces.

As a further improvement of the invention, a window shade is arranged in the supporting mechanism, and the window shade is used for shielding light from the entrance of the closed space.

As a further improvement of the invention, a limiting thimble is connected on the supporting frame of the supporting mechanism and used for limiting the depth of the UV lamp tube inserted into the groove.

3. Advantageous effects

Compared with the prior art, the technical scheme provided by the invention has the following beneficial effects:

(1) according to the UV curing device for printing the groove body, the supporting mechanism is used for forming a closed space for illumination, the UV lamp tube arranged in the illumination curing mechanism is in a transverse suspension position and can be inserted into the groove of a workpiece to perform independent curing processing on the groove, and the problem that the inner surface of the groove is wrinkled is avoided.

(2) According to the UV curing device for groove body printing, after the UV lamp tube extends into the groove, the UV lamp tube is close to the inner surface of the groove and is positioned in the area close to the lamp tube, and wrinkling is probably caused by strong light and high temperature, so that the light shielding plate is arranged in cooperation with the UV lamp tube, and can shield the area at the inlet of the groove, so that high heat radiation is reduced, and the surface of the groove is protected.

(3) The UV curing device for printing the groove body is provided with the cooling water pipe, and the cooling water pipe can cool the area near the UV lamp tube and prevent the product quality from being influenced by overhigh temperature; furthermore, the cooling water pipe can be matched with the light shielding plate, so that the light shielding plate is prevented from deforming to scratch the surface of a product, and the product quality is improved.

Drawings

FIG. 1 is a schematic view of the overall structure of a handle of a refrigerator;

FIG. 2 is a schematic view of a partially enlarged structure of a handle of a refrigerator;

FIG. 3 is a schematic view of a part of a workpiece structure of a UV curing device;

FIG. 4 is a schematic view showing the internal structure of a UV curing apparatus;

FIG. 5 is a schematic view of a structure of UV lamps and a workpiece;

fig. 6 is a schematic view of the arrangement structure of the light shielding plate.

The reference numerals in the schematic drawings illustrate: 1. a workpiece; 11. a groove; 2. a support mechanism; 21. a support frame; 22. a top plate; 23. a front door beam; 24. a side wall panel; 25. an electric cabinet; 3. a positioning and feeding mechanism; 31. an outer baffle; 32. positioning the mounting plate; 33. positioning the bottom plate; 34. a drive cylinder; 35. a limiting thimble; 4. an illumination curing mechanism; 41. a lamp tube bracket; 42. a UV lamp tube; 43. a cooling water pipe; 44. a visor; 45. a transverse connecting plate.

Detailed Description

For a further understanding of the present invention, reference is made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Example 1

With reference to fig. 3 and 4, the UV curing device for the slot body printing of the embodiment mainly comprises a supporting mechanism 2, a positioning feeding mechanism 3 and a light curing mechanism 4, wherein the supporting mechanism 2 is used for forming an integral bracket and forming a closed space for light curing.

Specifically, the supporting mechanism 2 includes a supporting frame 21, a top plate 22 and a side wall plate 24, the supporting frame 21 is a frame structure for supporting other parts, and for a required enclosed space, it can be enclosed by the top plate 22 and the side wall plate 24, and a feeding port is reserved for the entrance and exit of the workpiece 1. The required electric control box 25, switch and the like can be arranged on the support frame 21, and no specific requirements are provided for the specific shape and structure of the support frame 21. The top plate and the side wall plate are also described with reference to the drawings, and the specific shape of the top plate and the side wall plate can be set according to actual needs, mainly to provide a closed space.

The key point of this embodiment lies in carrying out institutional advancement to illumination solidification mechanism 4, and ordinary illumination solidification structure is only to wholly carrying out the illumination solidification, is difficult to shine to the inside light of cell body, has the defect easily. In the embodiment, the light curing mechanism 4 is provided with a lamp bracket 41, and the UV lamp 42 is connected with the lamp bracket 41 through a transverse connecting plate 45, so that the UV lamp 42 is suspended transversely.

The lamp bracket 41 is disposed in the closed space for fixedly mounting the UV lamp 42, and when the shape of the lamp bracket 41 is set, it may be vertically disposed or disposed in a bent structure to avoid interference with the product and to ensure that the UV lamp 42 can reach a designated position.

As shown in fig. 5, the transverse connecting plate 45 in this embodiment is used to connect the UV lamp 42 and the lamp holder 41, and plays a role of receiving. The transverse web 45 can also be considered as a part of the lamp support 41, directly connected to the UV lamp 42.

In this embodiment, the lamp holders 41 are disposed at two ends of the UV lamp 42 and supported at the ends, and a vacant area is formed between the two lamp holders 41, and accordingly, the transverse connecting plate 45 is divided into two parts and located at two ends of the UV lamp 42. This structural setting can save material, because the middle part is the vacant region mostly, has certain structure and dodges the effect moreover. In addition, two-point fixation is adopted, the structure of the transverse connecting plate 45 is better designed, for example, other shapes of the arc-shaped Chinese fiddle are required, and the manufacture and the processing are more convenient.

The UV lamp 42 in this embodiment is in a horizontal suspension state, which is processed for the structure shown in the figure, and if the groove opening of the workpiece is located in the vertical direction, the lamp can also be set in a vertical suspension state, all within the scope of this solution.

Since the UV lamp 42 is inserted into the recess, it must have a floating effect. The suspension mainly means that the lamp tube can move along one direction, the two sides of the lamp tube are not affected by related interference objects to be inserted into the groove, and if other parts are arranged close to the UV lamp tube 42, the lamp tube can be regarded as a suspension state as long as the matching of the UV lamp tube 42 and the groove is not affected, and no specific limitation exists.

The positioning and feeding mechanism 3 in this embodiment is used for positioning and placing the workpiece 1 with the groove 11, and feeding the workpiece 1 into the closed space of the supporting mechanism 2 by driving the cylinder 34, so that the UV lamp 42 extends into the groove 11.

Specifically, the positioning and feeding mechanism 3 may be divided into a positioning portion for fixing the workpiece 1 to maintain a set state so as to be able to cooperate with the UV lamp 42 and a feeding portion; the feeding part mainly comprises a driving cylinder 34, the driving cylinder 34 is arranged on the support frame 21, a piston rod of the driving cylinder is connected with the positioning part, a corresponding guide part is arranged, the workpiece 1 can be fed into the closed space through the movement of the piston rod, and the groove 11 of the driving cylinder is matched with the UV lamp tube 42 to carry out illumination curing.

Further, the positioning part of the positioning feeding mechanism 3 comprises a positioning mounting plate 32 and a positioning bottom plate 33, and the positioning bottom plate 33 is connected with a piston rod of a driving cylinder 34 and is in sliding connection with a guide rail in the supporting mechanism 2; the positioning mounting plate 32 is fixed on the positioning bottom plate 33 and used for positioning and placing the workpiece 1. An outer baffle 31 is also arranged on the support frame 21 and used for protecting the positioning and feeding mechanism 3.

The support frame 21 of the support mechanism 2 is connected with a limit thimble 35 for limiting the depth of the UV lamp tube 42 inserted into the groove 11. When the positioning portion contacts the position-limiting thimble 35, the piston rod stops moving, and the UV lamp tube 42 is located at the set position.

Example 2

The basic structure of the UV curing device for the slot printing of the present embodiment is the same as that of embodiment 1, except that: the lamp holder 41 of this embodiment is connected to a cooling water pipe 43, and the cooling water pipe 43 is connected to a circulating water system. This cooling water pipe 43 can with UV fluorescent tube 42 parallel arrangement to be located cooling water pipe 43 rear, can lower the temperature to the air in the recess through cooling water pipe 43, because cooling water pipe 43 is located UV fluorescent tube 42 rear, can not shelter from light.

Example 3

The basic structure of the UV curing device for the slot body printing of the present embodiment is the same as that of embodiment 1, except that: the lamp bracket 41 of the present embodiment is connected with a light shielding plate 44, and the light shielding plate 44 is located at the lower side of the UV lamp 42 for limiting the illumination area of the UV lamp 42.

As shown in fig. 5, in general, for a recessed area which is difficult to be cured by the integral UV curing device, the space is relatively small, when the UV lamp 42 is inserted, the UV lamp 42 is close to the two side walls of the recess 11, and the UV lamp 42 generates a large amount of heat energy while emitting light, and is affected by strong light and heat, so that the local area is wrinkled, and a new problem is likely to occur. The light shielding plate 44 is arranged to limit the illumination area and protect the product.

Referring to fig. 6, in the present embodiment, for the handle of the refrigerator, the lower side portion of the groove 1 protrudes a long portion, and the surface is easy to cure, so the present embodiment arranges the light shielding plate 44 at the lower side of the UV lamp tube 42, and the light shielding plate shields the area.

Example 4

The basic structure of the UV curing device for the slot body printing of the present embodiment is the same as that of embodiment 3, except that: the shade 44 extends at least to the right under the UV lamp 42, so that the light perpendicular to the moving direction of the workpiece 1 is shielded. In practice, the light shielding plate 44 may be disposed above or below the UV lamp tube 42, and the embodiment will be described with reference to FIG. 6 only for the case of being disposed below.

The length of the shadow mask 44 is related to the depth of the recess into which the UV lamp 42 is inserted, and the shadow mask can be relatively short to prevent the partial region from being irradiated by light if the depth of the UV lamp 42 is larger for the recess 11 with the depth d. If the UV lamp 42 is inserted to a relatively small depth and the outside has been cured, a shadow mask 44 is required to extend at least just below the UV lamp 42 to block the cured area or to avoid damage to the product from the intense light and heat.

Example 5

The basic structure of the UV curing device for the slot body printing of the present embodiment is the same as that of embodiment 4, except that: the tail end of the light shielding plate 44 is embedded into the cooling water pipe 43 to radiate heat to the light shielding plate 44.

After increasing light screen 44, can prevent that heat and light from directly being used in on the work piece, but to the less work piece of some recess 11, the distance of light screen 44 apart from recess 11 lateral wall may only be 1 ~ 2mm, and light screen 44 thickness sets up limitedly, and after being heated, light screen 44 has certain deformation, easily with the contact of recess lateral wall, the surface is scratched when work piece 1 moves. To solve this problem, the rear end of the light shielding plate 44 is inserted into the cooling water pipe 43, and the light shielding plate 44 is cooled by the cooling water pipe 43, thereby preventing deformation thereof.

Example 6

The basic structure of the UV curing device for the slot body printing of the present embodiment is the same as that of embodiment 5, except that: further, a water tank may be provided in the shade 44, and the water tank communicates with the cooling water pipe 43. The water tank is required to be set according to the thickness of the shading plate 44, if the thickness is smaller, the tail of the shading plate 44 can be in an arc shape, the thickness of the shading plate is increased, and the water tank with a certain depth is arranged under the condition that the thickness is allowed. Circulating water in the cooling water pipe 43 flows in the water tank in a circulating manner to dissipate heat of the light shielding plate 44, so that the heat dissipation effect is good.

Example 7

The basic structure of the UV curing device for the slot body printing of the present embodiment is the same as that of embodiment 6, except that: normal fluorescent tube both ends all set up the end cap and install the connecting wire, perhaps be used for sealing the fluorescent tube gas, but to the recess region, if both ends face also needs the solidification, the light will be stopped up to the end cap of setting, and the unable solidification of terminal surface area in the recess. In this embodiment, the two ends of the UV lamp 42 are sealed by the light guide elements, and the non-transparent body is modified into a transparent body, so that the light can be diffused to the two ends of the UV lamp 42, and the area inside the groove is fully cured.

Example 8

The basic structure of the UV curing device for the slot body printing of the present embodiment is the same as that of embodiment 7, except that: a window shade is arranged in the supporting mechanism 2 and used for shielding the entrance of the closed space from light. The window blind may be configured in a strip shape, and is hung on a front door beam 23 of the support frame 21, i.e., a cross beam located at the workpiece inlet side, for preventing light from being emitted outside.

Example 9

The invention provides a UV curing method for slot body printing, which comprises the following steps:

step 1, positioning a workpiece;

positioning and placing the workpiece 1 at the positioning part of the positioning and feeding mechanism 3, and enabling the groove 11 of the workpiece 1 to face to the moving direction;

step 2, feeding and positioning;

starting a system switch, driving a cylinder body 34 in a moving part of the positioning feeding mechanism 3 to drive the positioning part to move, and limiting the movement of the positioning bottom plate 33 by using a limiting thimble 35 to enable a UV lamp tube 42 in the illumination curing mechanism to reach a set position and be matched with the groove 11;

step 3, light curing;

the UV lamp tube 42 works in the groove 11, and light irradiates the inner surface of the groove 11 to be cured;

step 4, finishing the processing;

after the curing time reaches the set time, the cylinder 34 is driven to move the positioning part out of the closed space formed by the supporting mechanism 2, and the workpiece 1 is taken down to finish the processing.

The present invention and its embodiments have been described above schematically, and the description is not intended to be limiting, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.

Claims

1. The utility model provides a UV solidification equipment for cell body printing which characterized in that: comprises that

the light curing mechanism (4) is internally provided with a lamp tube bracket (41), and the UV lamp tube (42) is connected with the lamp tube bracket (41) through a transverse connecting plate (45) to enable the UV lamp tube (42) to be transversely suspended;

the positioning and feeding mechanism (3) is used for positioning and placing the workpiece (1) with the groove (11), and sending the workpiece (1) into the closed space of the supporting mechanism (2) through the driving cylinder body (34), so that the UV lamp tube (42) extends into the groove (11);

the lamp tube bracket (41) is connected with a cooling water pipe (43), and the cooling water pipe (43) is connected with a circulating water system; the lamp tube bracket (41) or the transverse connecting plate (45) is connected with a light shielding plate (44), and the light shielding plate (44) is positioned on the upper side and/or the lower side of the UV lamp tube (42) and is used for limiting the illumination area of the UV lamp tube (42).

2. The UV curing device for the slot body printing as claimed in claim 1, wherein: the light shielding plate (44) at least extends to the upper part or the lower part of the UV lamp tube (42) so that light rays vertical to the moving direction of the workpiece (1) are shielded.

3. The UV curing device for the slot body printing as claimed in claim 2, wherein: and the tail end of the shading plate (44) is embedded into a cooling water pipe (43) to radiate the shading plate (44).

4. The UV curing device for the slot body printing as claimed in claim 3, wherein: a water tank is arranged in the shading plate (44) and communicated with the cooling water pipe (43).

5. The UV curing device for the slot body printing according to claim 1, wherein: the two ends of the UV lamp tube (42) are sealed through the light guide element, and light can be diffused to the two ends of the UV lamp tube (42).

6. The UV curing device for the slot body printing according to any one of claims 1 to 5, wherein: the positioning feeding mechanism (3) further comprises a positioning mounting plate (32) and a positioning bottom plate (33), and the positioning bottom plate (33) is connected with a piston rod of the driving cylinder body (34) and is in sliding connection with a guide rail in the supporting mechanism (2); the positioning installation plate (32) is fixed on the positioning bottom plate (33) and used for positioning and placing the workpiece (1).

7. The UV curing device for the slot body printing according to any one of claims 1 to 5, wherein: be provided with the window shade in supporting mechanism (2), this window shade is used for carrying out light to enclosure's import and shelters from.

8. The UV curing device for the slot body printing according to any one of claims 1 to 5, wherein: and a limiting thimble (35) is connected to the support frame (21) of the support mechanism (2) and used for limiting the depth of the UV lamp tube (42) inserted into the groove (11).